COVER INFORMATION Station: GBT_VLBA (Code Gb ) Experiment: Follow-up Imaging of Three NGC4258-like Water Megamasers Exp. Code: BK114C Schedule Version: 1.00 Processed by SCHED version: 6.01 Release: Late March 2005 PI: Paul T. Kondratko Address: Harvard-Smithsonian CfA, MS 10 60 Garden Street Cambridge, MA 02138 USA Phone: 617 497 6996 EMAIL: pkondrat@cfa.harvard.edu Fax: 617 495 7345 Phone during observation: 617 851 3887 Observing mode: 256-4-2 1.3 cm Notes: 10 min setup time. Pointing calibration at the GBT and at EB is crucial and is scheduled every ~1.5 hours. VLA: extend phasing scans on 1434+235 if necessary to obtain reasonable RMS. VLA scan on 3C48 is critical. Schedule for GBT_VLBA (Code Gb ) Page 2 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- Next scan frequencies: 21316.00 21344.00 21484.00 21582.00 21666.00 21736.00 21756.00 21780.00 Next BBC frequencies: 516.00 544.00 684.00 782.00 866.00 936.00 956.00 980.00 Next scan bandwidths: 4.00 4.00 4.00 4.00 4.00 4.00 4.00 4.00 00 10 00 0059+581 08 59 10 19.3 -29.0 7.9 46.5 0 1 1 0 00 10 00 00 11 00 --- 09 00 10 19.2 -28.9 8.0 46.3 60 F 1 200 00 11 52 0133+476 09 01 02 15.9 -40.6 7.4 49.5 0 1 1 200 00 11 52 00 12 52 --- 09 02 02 15.7 -40.5 7.4 49.4 60 F 1 400 00 14 26 0224+671 09 03 37 31.9 -26.6 6.6 65.8 15 1 1 400 00 14 26 00 15 26 --- 09 04 37 31.8 -26.6 6.6 65.6 60 F 1 600 00 18 54 0237+2848 09 08 06 12.1 -62.7 6.5 52.6 116 1 1 600 00 18 54 00 19 54 --- 09 09 06 12.0 -62.5 6.5 52.5 60 F 1 800 00 33 39 0528+134 09 22 53 33.4 260.5 3.9 52.6 254 1 1 800 00 33 39 00 34 39 --- 09 23 53 33.2 260.7 3.9 52.7 60 F 1 1000 00 38 29 0605-085 09 27 43 24.0 235.8 3.3 41.0 156 1 1 1000 00 38 29 00 39 29 --- 09 28 43 23.8 236.0 3.3 41.1 60 F 1 1200 00 42 28 0642+449 09 31 43 58.9 295.3 2.7 87.2 37 1 1 1200 00 42 28 00 43 28 --- 09 32 43 58.7 295.3 2.8 87.1 60 F 1 1400 00 47 05 0727-115 09 36 21 31.9 217.0 2.1 28.8 55 1 1 1400 00 47 05 00 48 05 --- 09 37 21 31.8 217.2 2.1 29.0 60 F 1 1600 00 49 48 0748+126 09 39 04 54.7 230.0 1.8 37.9 0 1 1 1600 00 49 48 00 50 48 --- 09 40 04 54.5 230.4 1.8 38.2 60 F 1 1800 00 51 49 0736+017 09 41 06 43.9 224.5 2.0 33.3 0 1 1 1800 00 51 49 00 52 49 --- 09 42 06 43.7 224.8 2.0 33.5 60 F 1 2000 00 54 13 0834-201 09 43 30 29.2 197.9 1.1 14.9 7 1 1 2000 00 54 13 00 55 13 --- 09 44 30 29.2 198.2 1.1 15.1 60 F 1 2200 00 57 50 0854+2006 09 47 07 68.5 215.2 0.9 28.7 0 1 1 2200 00 57 50 00 58 50 --- 09 48 07 68.4 215.7 0.9 29.2 60 F 1 2400 Schedule for GBT_VLBA (Code Gb ) Page 3 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 01 01 08 4C39.25 09 50 26 85.5 279.2 0.4 95.6 0 1 1 2400 01 01 08 01 02 08 --- 09 51 26 85.3 279.0 0.4 95.2 60 F 1 2600 Next scan frequencies: 21479.42 21493.82 21558.94 21573.34 Next BBC frequencies: 679.42 693.82 758.94 773.34 Next scan bandwidths: 16.00 16.00 16.00 16.00 01 02 30 4C39.25 09 51 48 85.2 278.9 0.4 95.1 0 1 1 2600 01 02 30 01 06 30 --- 09 55 49 84.4 278.3 0.5 93.8 240 F 1 5800 Next scan frequencies: 21479.42 21493.82 21418.85 21434.85 Next BBC frequencies: 679.42 693.82 618.85 634.85 01 06 52 4C39.25 09 56 11 84.4 278.2 0.5 93.7 0 1 1 5800 01 06 52 01 10 52 --- 10 00 12 83.6 277.8 0.5 92.7 240 F 1 9000 Next scan frequencies: 21316.00 21344.00 21484.00 21582.00 21666.00 21736.00 21756.00 21780.00 Next BBC frequencies: 516.00 544.00 684.00 782.00 866.00 936.00 956.00 980.00 Next scan bandwidths: 4.00 4.00 4.00 4.00 4.00 4.00 4.00 4.00 01 14 45 1124-186 10 04 05 29.4 157.3 -1.4 -18.6 0 1 1 9000 01 14 45 01 15 45 --- 10 05 06 29.4 157.6 -1.4 -18.4 60 F 1 9200 Next scan frequencies: 21479.42 21493.82 21558.94 21573.34 Next BBC frequencies: 679.42 693.82 758.94 773.34 Next scan bandwidths: 16.00 16.00 16.00 16.00 01 18 03 1354+195 10 07 24 37.1 94.1 -3.8 -55.9 0 1 1 9200 Stopped 01 28 22 --- 10 17 44 39.1 95.8 -3.7 -55.7 619 S 1 9200 01 29 21 J1453+2648 10 18 44 32.2 79.6 -4.6 -59.7 0 1 1 9200 01 29 21 01 29 36 =1451+270 10 18 59 32.2 79.6 -4.6 -59.7 15 F 1 9400 01 29 36 UGC09618 10 18 59 30.5 81.4 -4.6 -58.4 -32 1 1 9400 01 29 36 01 30 21 --- 10 19 44 30.6 81.5 -4.6 -58.4 13 F 1 10000 Schedule for GBT_VLBA (Code Gb ) Page 4 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 01 30 21 J1453+2648 10 19 44 32.4 79.7 -4.6 -59.7 -32 1 1 10000 01 30 21 01 31 06 =1451+270 10 20 29 32.5 79.8 -4.6 -59.7 13 F 1 10600 01 31 06 UGC09618 10 20 29 30.8 81.6 -4.6 -58.5 -32 1 1 10600 01 31 06 01 31 51 --- 10 21 14 30.9 81.7 -4.6 -58.5 13 F 1 11200 01 31 51 J1453+2648 10 21 14 32.7 79.9 -4.5 -59.8 -32 1 1 11200 01 31 51 01 32 36 =1451+270 10 21 59 32.8 80.0 -4.5 -59.8 13 F 1 11800 01 32 36 UGC09618 10 21 59 31.1 81.8 -4.6 -58.5 -32 1 1 11800 01 32 36 01 33 21 --- 10 22 44 31.2 81.9 -4.6 -58.5 13 F 1 12400 01 33 21 J1453+2648 10 22 44 32.9 80.1 -4.5 -59.8 -32 1 1 12400 01 33 21 01 34 06 =1451+270 10 23 30 33.1 80.2 -4.5 -59.9 13 F 1 13000 01 34 06 UGC09618 10 23 30 31.4 82.0 -4.6 -58.6 -32 1 1 13000 01 34 06 01 34 51 --- 10 24 15 31.5 82.1 -4.6 -58.6 13 F 1 13600 01 34 51 J1453+2648 10 24 15 33.2 80.3 -4.5 -59.9 -32 1 1 13600 01 34 51 01 35 36 =1451+270 10 25 00 33.4 80.4 -4.5 -59.9 13 F 1 14200 01 35 36 UGC09618 10 25 00 31.7 82.2 -4.5 -58.6 -32 1 1 14200 01 35 36 01 36 21 --- 10 25 45 31.8 82.3 -4.5 -58.6 13 F 1 14800 01 36 21 J1453+2648 10 25 45 33.5 80.5 -4.5 -59.9 -32 1 1 14800 01 36 21 01 37 06 =1451+270 10 26 30 33.7 80.6 -4.5 -60.0 13 F 1 15400 01 37 06 UGC09618 10 26 30 31.9 82.5 -4.5 -58.7 -32 1 1 15400 01 37 06 01 37 51 --- 10 27 15 32.1 82.6 -4.5 -58.7 13 F 1 16000 01 37 51 J1453+2648 10 27 15 33.8 80.7 -4.4 -60.0 -32 1 1 16000 01 37 51 01 38 36 =1451+270 10 28 00 34.0 80.8 -4.4 -60.0 13 F 1 16600 01 38 36 UGC09618 10 28 00 32.2 82.7 -4.5 -58.7 -32 1 1 16600 01 38 36 01 39 21 --- 10 28 45 32.4 82.8 -4.5 -58.7 13 F 1 17200 01 39 21 J1453+2648 10 28 45 34.1 80.9 -4.4 -60.1 -32 1 2 17200 01 39 21 01 40 06 =1451+270 10 29 31 34.2 81.0 -4.4 -60.1 13 R 1 16600 01 40 06 UGC09618 10 29 31 32.5 82.9 -4.5 -58.7 -32 1 2 16600 01 40 06 01 40 51 --- 10 30 16 32.7 83.0 -4.5 -58.8 13 R 1 16000 Schedule for GBT_VLBA (Code Gb ) Page 5 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 01 40 51 J1453+2648 10 30 16 34.4 81.1 -4.4 -60.1 -32 1 2 16000 01 40 51 01 41 36 =1451+270 10 31 01 34.5 81.2 -4.4 -60.1 13 R 1 15400 01 41 36 UGC09618 10 31 01 32.8 83.1 -4.4 -58.8 -32 1 2 15400 01 41 36 01 42 21 --- 10 31 46 33.0 83.2 -4.4 -58.8 13 R 1 14800 01 42 21 J1453+2648 10 31 46 34.7 81.3 -4.4 -60.2 -32 1 2 14800 01 42 21 01 43 06 =1451+270 10 32 31 34.8 81.4 -4.4 -60.2 13 R 1 14200 01 43 06 UGC09618 10 32 31 33.1 83.3 -4.4 -58.8 -32 1 2 14200 01 43 06 01 43 51 --- 10 33 16 33.3 83.4 -4.4 -58.8 13 R 1 13600 01 43 51 J1453+2648 10 33 16 35.0 81.5 -4.3 -60.2 -32 1 2 13600 01 43 51 01 44 36 =1451+270 10 34 01 35.1 81.7 -4.3 -60.2 13 R 1 13000 01 44 36 UGC09618 10 34 01 33.4 83.5 -4.4 -58.9 -32 1 2 13000 01 44 36 01 45 21 --- 10 34 46 33.6 83.6 -4.4 -58.9 13 R 1 12400 01 45 21 J1453+2648 10 34 46 35.3 81.8 -4.3 -60.3 -32 1 2 12400 01 45 21 01 46 06 =1451+270 10 35 32 35.4 81.9 -4.3 -60.3 13 R 1 11800 01 46 06 UGC09618 10 35 32 33.7 83.7 -4.4 -58.9 -32 1 2 11800 01 46 06 01 46 51 --- 10 36 17 33.8 83.8 -4.3 -58.9 13 R 1 11200 01 46 51 J1453+2648 10 36 17 35.6 82.0 -4.3 -60.3 -32 1 2 11200 01 46 51 01 47 36 =1451+270 10 37 02 35.7 82.1 -4.3 -60.4 13 R 1 10600 01 47 36 UGC09618 10 37 02 34.0 83.9 -4.3 -58.9 -32 1 2 10600 01 47 36 01 48 21 --- 10 37 47 34.1 84.0 -4.3 -59.0 13 R 1 10000 01 48 21 J1453+2648 10 37 47 35.9 82.2 -4.3 -60.4 -32 1 2 10000 01 48 21 01 49 06 =1451+270 10 38 32 36.0 82.3 -4.3 -60.4 13 R 1 9400 01 49 06 UGC09618 10 38 32 34.3 84.1 -4.3 -59.0 -32 1 2 9400 01 49 06 01 49 51 --- 10 39 17 34.4 84.3 -4.3 -59.0 13 R 1 8800 01 49 51 J1453+2648 10 39 17 36.1 82.4 -4.2 -60.4 -32 1 2 8800 01 49 51 01 50 36 =1451+270 10 40 02 36.3 82.5 -4.2 -60.4 13 R 1 8200 01 50 36 UGC09618 10 40 02 34.6 84.4 -4.3 -59.0 -32 1 2 8200 01 50 36 01 51 21 --- 10 40 47 34.7 84.5 -4.3 -59.0 13 R 1 7600 Schedule for GBT_VLBA (Code Gb ) Page 6 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 01 51 21 J1453+2648 10 40 47 36.4 82.6 -4.2 -60.5 -32 1 2 7600 01 51 21 01 52 06 =1451+270 10 41 33 36.6 82.7 -4.2 -60.5 13 R 1 7000 01 52 06 UGC09618 10 41 33 34.9 84.6 -4.3 -59.1 -32 1 2 7000 01 52 06 01 52 51 --- 10 42 18 35.0 84.7 -4.2 -59.1 13 R 1 6400 01 52 51 J1453+2648 10 42 18 36.7 82.8 -4.2 -60.5 -32 1 2 6400 01 52 51 01 53 36 =1451+270 10 43 03 36.9 82.9 -4.2 -60.5 13 R 1 5800 01 53 36 UGC09618 10 43 03 35.2 84.8 -4.2 -59.1 -32 1 2 5800 01 53 36 01 54 21 --- 10 43 48 35.3 84.9 -4.2 -59.1 13 R 1 5200 01 54 21 J1453+2648 10 43 48 37.0 83.0 -4.2 -60.6 -32 1 2 5200 01 54 21 01 55 06 =1451+270 10 44 33 37.2 83.1 -4.2 -60.6 13 R 1 4600 01 55 06 UGC09618 10 44 33 35.5 85.0 -4.2 -59.1 -32 1 2 4600 01 55 06 01 55 51 --- 10 45 18 35.6 85.1 -4.2 -59.1 13 R 1 4000 01 55 51 J1453+2648 10 45 18 37.3 83.2 -4.1 -60.6 -32 1 2 4000 01 55 51 01 56 36 =1451+270 10 46 03 37.5 83.3 -4.1 -60.6 13 R 1 3400 01 56 36 UGC09618 10 46 03 35.7 85.2 -4.2 -59.1 -32 1 2 3400 01 56 36 01 57 21 --- 10 46 48 35.9 85.3 -4.2 -59.2 13 R 1 2800 01 57 21 J1453+2648 10 46 48 37.6 83.4 -4.1 -60.7 -32 1 2 2800 01 57 21 01 58 06 =1451+270 10 47 34 37.8 83.5 -4.1 -60.7 13 R 1 2200 01 58 06 UGC09618 10 47 34 36.0 85.4 -4.2 -59.2 -32 1 2 2200 01 58 06 01 58 51 --- 10 48 19 36.2 85.5 -4.1 -59.2 13 R 1 1600 01 58 51 J1453+2648 10 48 19 37.9 83.6 -4.1 -60.7 -32 1 2 1600 01 58 51 01 59 36 =1451+270 10 49 04 38.0 83.7 -4.1 -60.7 13 R 1 1000 01 59 36 UGC09618 10 49 04 36.3 85.7 -4.1 -59.2 -32 1 2 1000 01 59 36 02 00 21 --- 10 49 49 36.5 85.8 -4.1 -59.2 13 R 1 400 02 00 21 J1453+2648 10 49 49 38.2 83.8 -4.1 -60.7 -32 1 3 400 02 00 21 02 01 06 =1451+270 10 50 34 38.3 83.9 -4.1 -60.8 13 F 1 1000 02 01 06 UGC09618 10 50 34 36.6 85.9 -4.1 -59.2 -32 1 3 1000 02 01 06 02 01 51 --- 10 51 19 36.8 86.0 -4.1 -59.2 13 F 1 1600 Schedule for GBT_VLBA (Code Gb ) Page 7 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 02 01 51 J1453+2648 10 51 19 38.5 84.0 -4.0 -60.8 -32 1 3 1600 02 01 51 02 02 36 =1451+270 10 52 04 38.6 84.1 -4.0 -60.8 13 F 1 2200 02 02 36 UGC09618 10 52 04 36.9 86.1 -4.1 -59.3 -33 1 3 2200 02 02 36 02 03 21 --- 10 52 49 37.1 86.2 -4.1 -59.3 12 F 1 2800 02 03 21 J1453+2648 10 52 49 38.8 84.2 -4.0 -60.8 -33 1 3 2800 02 03 21 02 04 06 =1451+270 10 53 35 38.9 84.3 -4.0 -60.8 12 F 1 3400 02 04 06 UGC09618 10 53 35 37.2 86.3 -4.1 -59.3 -33 1 3 3400 02 04 06 02 04 51 --- 10 54 20 37.4 86.4 -4.0 -59.3 12 F 1 4000 02 04 51 J1453+2648 10 54 20 39.1 84.4 -4.0 -60.9 -33 1 3 4000 02 04 51 02 05 36 =1451+270 10 55 05 39.2 84.5 -4.0 -60.9 12 F 1 4600 02 05 36 UGC09618 10 55 05 37.5 86.5 -4.0 -59.3 -33 1 3 4600 02 05 36 02 06 21 --- 10 55 50 37.7 86.6 -4.0 -59.3 12 F 1 5200 02 06 21 J1453+2648 10 55 50 39.4 84.7 -4.0 -60.9 -33 1 3 5200 02 06 21 02 07 06 =1451+270 10 56 35 39.5 84.8 -4.0 -60.9 12 F 1 5800 02 07 06 UGC09618 10 56 35 37.8 86.7 -4.0 -59.3 -33 1 3 5800 02 07 06 02 07 51 --- 10 57 20 38.0 86.9 -4.0 -59.3 12 F 1 6400 02 07 51 J1453+2648 10 57 20 39.7 84.9 -3.9 -60.9 -33 1 3 6400 02 07 51 02 08 36 =1451+270 10 58 05 39.8 85.0 -3.9 -60.9 12 F 1 7000 02 08 36 UGC09618 10 58 05 38.1 87.0 -4.0 -59.3 -33 1 3 7000 02 08 36 02 09 21 --- 10 58 50 38.2 87.1 -4.0 -59.4 12 F 1 7600 02 09 21 J1453+2648 10 58 50 39.9 85.1 -3.9 -61.0 -33 1 3 7600 02 09 21 02 10 06 =1451+270 10 59 36 40.1 85.2 -3.9 -61.0 12 F 1 8200 02 10 06 UGC09618 10 59 36 38.4 87.2 -4.0 -59.4 -33 1 3 8200 02 10 06 02 10 51 --- 11 00 21 38.5 87.3 -3.9 -59.4 12 F 1 8800 02 10 51 J1453+2648 11 00 21 40.2 85.3 -3.9 -61.0 -33 1 3 8800 02 10 51 02 11 36 =1451+270 11 01 06 40.4 85.4 -3.9 -61.0 12 F 1 9400 02 11 36 UGC09618 11 01 06 38.7 87.4 -3.9 -59.4 -33 1 3 9400 02 11 36 02 12 21 --- 11 01 51 38.8 87.5 -3.9 -59.4 12 F 1 10000 Schedule for GBT_VLBA (Code Gb ) Page 8 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 02 12 21 J1453+2648 11 01 51 40.5 85.5 -3.9 -61.0 -33 1 3 10000 02 12 21 02 13 06 =1451+270 11 02 36 40.7 85.6 -3.9 -61.0 12 F 1 10600 02 13 06 UGC09618 11 02 36 39.0 87.6 -3.9 -59.4 -33 1 3 10600 02 13 06 02 13 51 --- 11 03 21 39.1 87.7 -3.9 -59.4 12 F 1 11200 02 13 51 J1453+2648 11 03 21 40.8 85.7 -3.8 -61.0 -33 1 3 11200 02 13 51 02 14 36 =1451+270 11 04 06 41.0 85.8 -3.8 -61.1 12 F 1 11800 02 14 36 UGC09618 11 04 06 39.3 87.9 -3.9 -59.4 -33 1 3 11800 02 14 36 02 15 21 --- 11 04 51 39.4 88.0 -3.9 -59.4 12 F 1 12400 02 15 21 J1453+2648 11 04 51 41.1 85.9 -3.8 -61.1 -33 1 3 12400 02 15 21 02 16 06 =1451+270 11 05 37 41.3 86.0 -3.8 -61.1 12 F 1 13000 02 16 06 UGC09618 11 05 37 39.6 88.1 -3.9 -59.4 -33 1 3 13000 02 16 06 02 16 51 --- 11 06 22 39.7 88.2 -3.8 -59.4 12 F 1 13600 02 16 51 J1453+2648 11 06 22 41.4 86.2 -3.8 -61.1 -33 1 3 13600 02 16 51 02 17 36 =1451+270 11 07 07 41.6 86.3 -3.8 -61.1 12 F 1 14200 02 17 36 UGC09618 11 07 07 39.9 88.3 -3.8 -59.4 -33 1 3 14200 02 17 36 02 18 21 --- 11 07 52 40.0 88.4 -3.8 -59.4 12 F 1 14800 02 18 21 J1453+2648 11 07 52 41.7 86.4 -3.8 -61.1 -33 1 3 14800 02 18 21 02 19 06 =1451+270 11 08 37 41.9 86.5 -3.8 -61.1 12 F 1 15400 02 19 06 UGC09618 11 08 37 40.2 88.5 -3.8 -59.5 -33 1 3 15400 02 19 06 02 19 51 --- 11 09 22 40.3 88.7 -3.8 -59.5 12 F 1 16000 02 19 51 J1453+2648 11 09 22 42.0 86.6 -3.7 -61.2 -33 1 3 16000 02 19 51 02 20 36 =1451+270 11 10 07 42.2 86.7 -3.7 -61.2 12 F 1 16600 02 20 36 UGC09618 11 10 07 40.5 88.8 -3.8 -59.5 -33 1 3 16600 02 20 36 02 21 21 --- 11 10 52 40.6 88.9 -3.8 -59.5 12 F 1 17200 02 21 21 J1453+2648 11 10 52 42.3 86.8 -3.7 -61.2 -33 1 4 17200 02 21 21 02 22 06 =1451+270 11 11 37 42.4 86.9 -3.7 -61.2 12 R 1 16600 02 22 06 UGC09618 11 11 37 40.7 89.0 -3.8 -59.5 -33 1 4 16600 02 22 06 02 22 51 --- 11 12 23 40.9 89.1 -3.7 -59.5 12 R 1 16000 Schedule for GBT_VLBA (Code Gb ) Page 9 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 02 22 51 J1453+2648 11 12 23 42.6 87.0 -3.7 -61.2 -33 1 4 16000 02 22 51 02 23 36 =1451+270 11 13 08 42.7 87.1 -3.7 -61.2 12 R 1 15400 02 23 36 UGC09618 11 13 08 41.0 89.2 -3.7 -59.5 -33 1 4 15400 02 23 36 02 24 21 --- 11 13 53 41.2 89.3 -3.7 -59.5 12 R 1 14800 02 24 21 J1453+2648 11 13 53 42.9 87.2 -3.7 -61.2 -33 1 4 14800 02 24 21 02 25 06 =1451+270 11 14 38 43.0 87.4 -3.7 -61.2 12 R 1 14200 02 25 06 UGC09618 11 14 38 41.3 89.5 -3.7 -59.5 -33 1 4 14200 02 25 06 02 25 51 --- 11 15 23 41.5 89.6 -3.7 -59.5 12 R 1 13600 02 25 51 J1453+2648 11 15 23 43.2 87.5 -3.6 -61.2 -33 1 4 13600 02 25 51 02 26 36 =1451+270 11 16 08 43.3 87.6 -3.6 -61.2 12 R 1 13000 02 26 36 UGC09618 11 16 08 41.6 89.7 -3.7 -59.5 -33 1 4 13000 02 26 36 02 27 21 --- 11 16 53 41.8 89.8 -3.7 -59.5 12 R 1 12400 02 27 21 J1453+2648 11 16 53 43.5 87.7 -3.6 -61.3 -33 1 4 12400 02 27 21 02 28 06 =1451+270 11 17 38 43.6 87.8 -3.6 -61.3 12 R 1 11800 02 28 06 UGC09618 11 17 38 41.9 89.9 -3.7 -59.5 -33 1 4 11800 02 28 06 02 28 51 --- 11 18 24 42.1 90.0 -3.6 -59.5 12 R 1 11200 02 28 51 J1453+2648 11 18 24 43.8 87.9 -3.6 -61.3 -33 1 4 11200 02 28 51 02 29 36 =1451+270 11 19 09 43.9 88.0 -3.6 -61.3 12 R 1 10600 02 29 36 UGC09618 11 19 09 42.2 90.2 -3.6 -59.5 -33 1 4 10600 02 29 36 02 30 21 --- 11 19 54 42.4 90.3 -3.6 -59.5 12 R 1 10000 02 30 21 J1453+2648 11 19 54 44.1 88.1 -3.6 -61.3 -33 1 4 10000 02 30 21 02 31 06 =1451+270 11 20 39 44.2 88.2 -3.6 -61.3 12 R 1 9400 02 31 06 UGC09618 11 20 39 42.5 90.4 -3.6 -59.5 -33 1 4 9400 02 31 06 02 31 51 --- 11 21 24 42.7 90.5 -3.6 -59.5 12 R 1 8800 02 31 51 J1453+2648 11 21 24 44.4 88.4 -3.5 -61.3 -33 1 4 8800 02 31 51 02 32 36 =1451+270 11 22 09 44.5 88.5 -3.5 -61.3 12 R 1 8200 02 32 36 UGC09618 11 22 09 42.8 90.6 -3.6 -59.5 -33 1 4 8200 02 32 36 02 33 21 --- 11 22 54 43.0 90.7 -3.6 -59.5 12 R 1 7600 Schedule for GBT_VLBA (Code Gb ) Page 10 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 02 33 21 J1453+2648 11 22 54 44.7 88.6 -3.5 -61.3 -33 1 4 7600 02 33 21 02 34 06 =1451+270 11 23 39 44.8 88.7 -3.5 -61.3 12 R 1 7000 02 34 06 UGC09618 11 23 39 43.1 90.9 -3.6 -59.5 -33 1 4 7000 02 34 06 02 34 51 --- 11 24 25 43.3 91.0 -3.5 -59.5 12 R 1 6400 02 34 51 J1453+2648 11 24 25 44.9 88.8 -3.5 -61.3 -33 1 4 6400 02 34 51 02 35 36 =1451+270 11 25 10 45.1 88.9 -3.5 -61.3 12 R 1 5800 02 35 36 UGC09618 11 25 10 43.4 91.1 -3.5 -59.5 -33 1 4 5800 02 35 36 02 36 21 --- 11 25 55 43.5 91.2 -3.5 -59.5 12 R 1 5200 02 36 21 J1453+2648 11 25 55 45.2 89.0 -3.5 -61.3 -33 1 4 5200 02 36 21 02 37 06 =1451+270 11 26 40 45.4 89.2 -3.5 -61.3 12 R 1 4600 02 37 06 UGC09618 11 26 40 43.7 91.3 -3.5 -59.5 -33 1 4 4600 02 37 06 02 37 51 --- 11 27 25 43.8 91.5 -3.5 -59.5 12 R 1 4000 02 37 51 J1453+2648 11 27 25 45.5 89.3 -3.4 -61.3 -33 1 4 4000 02 37 51 02 38 36 =1451+270 11 28 10 45.7 89.4 -3.4 -61.3 12 R 1 3400 02 40 33 1308+326 11 30 08 68.7 99.0 -1.7 -66.3 14 1 5 3400 02 40 33 02 45 33 --- 11 35 08 69.6 100.2 -1.6 -65.8 300 F 1 600 02 46 51 1354+195 11 36 27 54.0 112.0 -2.3 -50.3 0 1 5 600 Stopped 02 54 40 --- 11 44 17 55.4 114.1 -2.2 -49.2 469 S 1 600 02 55 49 J1453+2648 11 45 26 49.1 92.1 -3.1 -61.3 0 1 5 600 02 55 49 02 56 04 =1451+270 11 45 41 49.1 92.2 -3.1 -61.3 15 F 1 800 02 56 04 UGC09618 11 45 41 47.4 94.5 -3.2 -59.2 -34 1 5 800 02 56 04 02 56 49 --- 11 46 26 47.6 94.6 -3.2 -59.2 11 F 1 1400 02 56 49 J1453+2648 11 46 26 49.3 92.3 -3.1 -61.3 -34 1 5 1400 02 56 49 02 57 34 =1451+270 11 47 11 49.4 92.4 -3.1 -61.2 11 F 1 2000 02 57 34 UGC09618 11 47 11 47.7 94.7 -3.2 -59.2 -34 1 5 2000 02 57 34 02 58 19 --- 11 47 56 47.9 94.9 -3.2 -59.1 11 F 1 2600 02 58 19 J1453+2648 11 47 56 49.6 92.5 -3.1 -61.2 -34 1 5 2600 02 58 19 02 59 04 =1451+270 11 48 41 49.7 92.7 -3.1 -61.2 11 F 1 3200 Schedule for GBT_VLBA (Code Gb ) Page 11 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 02 59 04 UGC09618 11 48 41 48.0 95.0 -3.1 -59.1 -34 1 5 3200 02 59 04 02 59 49 --- 11 49 26 48.1 95.1 -3.1 -59.1 11 F 1 3800 02 59 49 J1453+2648 11 49 26 49.8 92.8 -3.1 -61.2 -34 1 5 3800 02 59 49 03 00 34 =1451+270 11 50 12 50.0 92.9 -3.1 -61.2 11 F 1 4400 03 00 34 UGC09618 11 50 12 48.3 95.3 -3.1 -59.1 -34 1 5 4400 03 00 34 03 01 19 --- 11 50 57 48.4 95.4 -3.1 -59.1 11 F 1 5000 03 01 19 J1453+2648 11 50 57 50.1 93.0 -3.1 -61.2 -34 1 5 5000 03 01 19 03 02 04 =1451+270 11 51 42 50.3 93.2 -3.0 -61.2 11 F 1 5600 03 02 04 UGC09618 11 51 42 48.6 95.5 -3.1 -59.0 -34 1 5 5600 03 02 04 03 02 49 --- 11 52 27 48.7 95.7 -3.1 -59.0 11 F 1 6200 03 02 49 J1453+2648 11 52 27 50.4 93.3 -3.0 -61.2 -34 1 5 6200 03 02 49 03 03 34 =1451+270 11 53 12 50.6 93.4 -3.0 -61.2 11 F 1 6800 03 03 34 UGC09618 11 53 12 48.9 95.8 -3.1 -59.0 -34 1 5 6800 03 03 34 03 04 19 --- 11 53 57 49.0 95.9 -3.1 -59.0 11 F 1 7400 03 04 19 J1453+2648 11 53 57 50.7 93.5 -3.0 -61.1 -34 1 5 7400 03 04 19 03 05 04 =1451+270 11 54 42 50.9 93.7 -3.0 -61.1 11 F 1 8000 03 05 04 UGC09618 11 54 42 49.2 96.1 -3.0 -58.9 -34 1 5 8000 03 05 04 03 05 49 --- 11 55 27 49.3 96.2 -3.0 -58.9 11 F 1 8600 03 05 49 J1453+2648 11 55 27 51.0 93.8 -3.0 -61.1 -34 1 5 8600 03 05 49 03 06 34 =1451+270 11 56 13 51.2 93.9 -3.0 -61.1 11 F 1 9200 03 06 34 UGC09618 11 56 13 49.5 96.3 -3.0 -58.9 -34 1 5 9200 03 06 34 03 07 19 --- 11 56 58 49.6 96.5 -3.0 -58.9 11 F 1 9800 03 07 19 J1453+2648 11 56 58 51.3 94.1 -3.0 -61.1 -34 1 5 9800 03 07 19 03 08 04 =1451+270 11 57 43 51.5 94.2 -2.9 -61.1 11 F 1 10400 03 08 04 UGC09618 11 57 43 49.8 96.6 -3.0 -58.8 -34 1 5 10400 03 08 04 03 08 49 --- 11 58 28 49.9 96.8 -3.0 -58.8 11 F 1 11000 03 08 49 J1453+2648 11 58 28 51.6 94.3 -2.9 -61.0 -34 1 5 11000 03 08 49 03 09 34 =1451+270 11 59 13 51.8 94.4 -2.9 -61.0 11 F 1 11600 Schedule for GBT_VLBA (Code Gb ) Page 12 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 03 09 34 UGC09618 11 59 13 50.1 96.9 -3.0 -58.8 -34 1 5 11600 03 09 34 03 10 19 --- 11 59 58 50.2 97.0 -3.0 -58.8 11 F 1 12200 03 10 19 J1453+2648 11 59 58 51.9 94.6 -2.9 -61.0 -34 1 5 12200 03 10 19 03 11 04 =1451+270 12 00 43 52.1 94.7 -2.9 -61.0 11 F 1 12800 03 11 04 UGC09618 12 00 43 50.3 97.2 -2.9 -58.7 -34 1 5 12800 03 11 04 03 11 49 --- 12 01 28 50.5 97.3 -2.9 -58.7 11 F 1 13400 03 11 49 J1453+2648 12 01 28 52.2 94.8 -2.9 -61.0 -34 1 5 13400 03 11 49 03 12 34 =1451+270 12 02 14 52.3 95.0 -2.9 -60.9 11 F 1 14000 03 12 34 UGC09618 12 02 14 50.6 97.4 -2.9 -58.7 -34 1 5 14000 03 12 34 03 13 19 --- 12 02 59 50.8 97.6 -2.9 -58.6 11 F 1 14600 03 13 19 J1453+2648 12 02 59 52.5 95.1 -2.9 -60.9 -34 1 5 14600 03 13 19 03 14 04 =1451+270 12 03 44 52.6 95.2 -2.8 -60.9 11 F 1 15200 03 14 04 UGC09618 12 03 44 50.9 97.7 -2.9 -58.6 -34 1 5 15200 03 14 04 03 14 49 --- 12 04 29 51.1 97.9 -2.9 -58.6 11 F 1 15800 03 14 49 J1453+2648 12 04 29 52.8 95.4 -2.8 -60.9 -34 1 5 15800 03 14 49 03 15 34 =1451+270 12 05 14 52.9 95.5 -2.8 -60.9 11 F 1 16400 03 15 34 UGC09618 12 05 14 51.2 98.0 -2.9 -58.5 -34 1 5 16400 03 15 34 03 16 19 --- 12 05 59 51.4 98.2 -2.9 -58.5 11 F 1 17000 03 16 19 J1453+2648 12 05 59 53.1 95.6 -2.8 -60.8 -34 1 5 17000 03 16 19 03 17 04 =1451+270 12 06 44 53.2 95.8 -2.8 -60.8 11 F 1 17600 03 17 04 UGC09618 12 06 44 51.5 98.3 -2.8 -58.5 -34 1 6 17600 03 17 04 03 17 49 --- 12 07 29 51.7 98.4 -2.8 -58.4 11 R 1 17000 03 17 49 J1453+2648 12 07 29 53.4 95.9 -2.8 -60.8 -34 1 6 17000 03 17 49 03 18 34 =1451+270 12 08 15 53.5 96.1 -2.8 -60.8 11 R 1 16400 03 18 34 UGC09618 12 08 15 51.8 98.6 -2.8 -58.4 -34 1 6 16400 03 18 34 03 19 19 --- 12 09 00 51.9 98.7 -2.8 -58.4 11 R 1 15800 03 19 19 J1453+2648 12 09 00 53.7 96.2 -2.8 -60.7 -34 1 6 15800 03 19 19 03 20 04 =1451+270 12 09 45 53.8 96.3 -2.7 -60.7 11 R 1 15200 Schedule for GBT_VLBA (Code Gb ) Page 13 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 03 20 04 UGC09618 12 09 45 52.1 98.9 -2.8 -58.3 -34 1 6 15200 03 20 04 03 20 49 --- 12 10 30 52.2 99.0 -2.8 -58.3 11 R 1 14600 03 20 49 J1453+2648 12 10 30 54.0 96.5 -2.7 -60.7 -34 1 6 14600 03 20 49 03 21 34 =1451+270 12 11 15 54.1 96.6 -2.7 -60.6 11 R 1 14000 03 21 34 UGC09618 12 11 15 52.4 99.2 -2.8 -58.3 -34 1 6 14000 03 21 34 03 22 19 --- 12 12 00 52.5 99.3 -2.8 -58.2 11 R 1 13400 03 22 19 J1453+2648 12 12 00 54.3 96.8 -2.7 -60.6 -34 1 6 13400 03 22 19 03 23 04 =1451+270 12 12 45 54.4 96.9 -2.7 -60.6 11 R 1 12800 03 23 04 UGC09618 12 12 45 52.7 99.5 -2.7 -58.2 -34 1 6 12800 03 23 04 03 23 49 --- 12 13 30 52.8 99.6 -2.7 -58.1 11 R 1 12200 03 23 49 J1453+2648 12 13 30 54.5 97.0 -2.7 -60.6 -34 1 6 12200 03 23 49 03 24 34 =1451+270 12 14 16 54.7 97.2 -2.7 -60.5 11 R 1 11600 03 24 34 UGC09618 12 14 16 53.0 99.8 -2.7 -58.1 -34 1 6 11600 03 24 34 03 25 19 --- 12 15 01 53.1 99.9 -2.7 -58.1 11 R 1 11000 03 25 19 J1453+2648 12 15 01 54.8 97.3 -2.7 -60.5 -34 1 6 11000 03 25 19 03 26 04 =1451+270 12 15 46 55.0 97.5 -2.6 -60.5 11 R 1 10400 03 26 04 UGC09618 12 15 46 53.3 100.1 -2.7 -58.0 -34 1 6 10400 03 26 04 03 26 49 --- 12 16 31 53.4 100.2 -2.7 -58.0 11 R 1 9800 03 26 49 J1453+2648 12 16 31 55.1 97.6 -2.6 -60.4 -34 1 6 9800 03 26 49 03 27 34 =1451+270 12 17 16 55.3 97.8 -2.6 -60.4 11 R 1 9200 03 27 34 UGC09618 12 17 16 53.5 100.4 -2.7 -57.9 -34 1 6 9200 03 27 34 03 28 19 --- 12 18 01 53.7 100.5 -2.7 -57.9 11 R 1 8600 03 28 19 J1453+2648 12 18 01 55.4 97.9 -2.6 -60.4 -34 1 6 8600 03 28 19 03 29 04 =1451+270 12 18 46 55.6 98.1 -2.6 -60.3 11 R 1 8000 03 29 04 UGC09618 12 18 46 53.8 100.7 -2.6 -57.8 -35 1 6 8000 03 29 04 03 29 49 --- 12 19 31 54.0 100.8 -2.6 -57.8 10 R 1 7400 03 29 49 J1453+2648 12 19 31 55.7 98.2 -2.6 -60.3 -35 1 6 7400 03 29 49 03 30 34 =1451+270 12 20 17 55.9 98.3 -2.6 -60.2 10 R 1 6800 Schedule for GBT_VLBA (Code Gb ) Page 14 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 03 30 34 UGC09618 12 20 17 54.1 101.0 -2.6 -57.7 -35 1 6 6800 03 30 34 03 31 19 --- 12 21 02 54.3 101.1 -2.6 -57.7 10 R 1 6200 03 31 19 J1453+2648 12 21 02 56.0 98.5 -2.6 -60.2 -35 1 6 6200 03 31 19 03 32 04 =1451+270 12 21 47 56.1 98.6 -2.5 -60.2 10 R 1 5600 03 32 04 UGC09618 12 21 47 54.4 101.3 -2.6 -57.6 -35 1 6 5600 03 32 04 03 32 49 --- 12 22 32 54.6 101.5 -2.6 -57.6 10 R 1 5000 03 32 49 J1453+2648 12 22 32 56.3 98.8 -2.5 -60.1 -35 1 6 5000 03 32 49 03 33 34 =1451+270 12 23 17 56.4 98.9 -2.5 -60.1 10 R 1 4400 03 33 34 UGC09618 12 23 17 54.7 101.6 -2.6 -57.5 -35 1 6 4400 03 33 34 03 34 19 --- 12 24 02 54.8 101.8 -2.6 -57.5 10 R 1 3800 03 34 19 J1453+2648 12 24 02 56.6 99.1 -2.5 -60.0 -35 1 6 3800 03 34 19 03 35 04 =1451+270 12 24 47 56.7 99.2 -2.5 -60.0 10 R 1 3200 03 35 04 UGC09618 12 24 47 55.0 101.9 -2.5 -57.4 -35 1 6 3200 03 35 04 03 35 49 --- 12 25 32 55.1 102.1 -2.5 -57.4 10 R 1 2600 03 35 49 J1453+2648 12 25 32 56.9 99.4 -2.5 -60.0 -35 1 6 2600 03 35 49 03 36 34 =1451+270 12 26 18 57.0 99.6 -2.5 -59.9 10 R 1 2000 03 36 34 UGC09618 12 26 18 55.3 102.3 -2.5 -57.3 -35 1 6 2000 03 36 34 03 37 19 --- 12 27 03 55.4 102.4 -2.5 -57.3 10 R 1 1400 03 37 19 J1453+2648 12 27 03 57.2 99.7 -2.5 -59.9 -35 1 6 1400 03 37 19 03 38 04 =1451+270 12 27 48 57.3 99.9 -2.4 -59.8 10 R 1 800 03 38 04 UGC09618 12 27 48 55.6 102.6 -2.5 -57.2 -35 1 6 800 03 38 04 03 38 49 --- 12 28 33 55.7 102.7 -2.5 -57.2 10 R 1 200 03 38 49 J1453+2648 12 28 33 57.5 100.0 -2.4 -59.8 -35 1 7 200 03 38 49 03 39 34 =1451+270 12 29 18 57.6 100.2 -2.4 -59.7 10 F 1 800 03 39 34 UGC09618 12 29 18 55.9 102.9 -2.5 -57.1 -35 1 7 800 03 39 34 03 40 19 --- 12 30 03 56.0 103.1 -2.5 -57.0 10 F 1 1400 03 40 19 J1453+2648 12 30 03 57.7 100.3 -2.4 -59.7 -35 1 7 1400 03 40 19 03 41 04 =1451+270 12 30 48 57.9 100.5 -2.4 -59.6 10 F 1 2000 Schedule for GBT_VLBA (Code Gb ) Page 15 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 03 41 04 UGC09618 12 30 48 56.1 103.2 -2.4 -57.0 -35 1 7 2000 03 41 04 03 41 49 --- 12 31 33 56.3 103.4 -2.4 -56.9 10 F 1 2600 03 41 49 J1453+2648 12 31 33 58.0 100.7 -2.4 -59.6 -35 1 7 2600 03 41 49 03 42 34 =1451+270 12 32 18 58.2 100.8 -2.4 -59.5 10 F 1 3200 03 42 34 UGC09618 12 32 18 56.4 103.6 -2.4 -56.9 -35 1 7 3200 03 42 34 03 43 19 --- 12 33 04 56.6 103.8 -2.4 -56.8 10 F 1 3800 03 43 19 J1453+2648 12 33 04 58.3 101.0 -2.4 -59.5 -35 1 7 3800 03 43 19 03 44 04 =1451+270 12 33 49 58.5 101.1 -2.3 -59.4 10 F 1 4400 03 44 04 UGC09618 12 33 49 56.7 103.9 -2.4 -56.7 -35 1 7 4400 03 44 04 03 44 49 --- 12 34 34 56.9 104.1 -2.4 -56.7 10 F 1 5000 03 44 49 J1453+2648 12 34 34 58.6 101.3 -2.3 -59.4 -35 1 7 5000 03 44 49 03 45 34 =1451+270 12 35 19 58.8 101.5 -2.3 -59.3 10 F 1 5601 03 45 34 UGC09618 12 35 19 57.0 104.3 -2.4 -56.6 -35 1 7 5601 03 45 34 03 46 19 --- 12 36 04 57.1 104.4 -2.4 -56.5 10 F 1 6201 03 46 19 J1453+2648 12 36 04 58.9 101.6 -2.3 -59.3 -35 1 7 6201 03 46 19 03 47 04 =1451+270 12 36 49 59.0 101.8 -2.3 -59.2 10 F 1 6801 03 47 04 UGC09618 12 36 49 57.3 104.6 -2.3 -56.5 -35 1 7 6801 03 47 04 03 47 49 --- 12 37 34 57.4 104.8 -2.3 -56.4 10 F 1 7401 03 47 49 J1453+2648 12 37 34 59.2 102.0 -2.3 -59.1 -35 1 7 7401 03 47 49 03 48 34 =1451+270 12 38 20 59.3 102.1 -2.3 -59.1 10 F 1 8001 03 48 34 UGC09618 12 38 20 57.6 105.0 -2.3 -56.3 -35 1 7 8001 03 48 34 03 49 19 --- 12 39 05 57.7 105.1 -2.3 -56.3 10 F 1 8601 03 49 19 J1453+2648 12 39 05 59.5 102.3 -2.3 -59.0 -35 1 7 8601 03 49 19 03 50 04 =1451+270 12 39 50 59.6 102.5 -2.2 -59.0 10 F 1 9201 03 50 04 UGC09618 12 39 50 57.9 105.3 -2.3 -56.2 -35 1 7 9201 03 50 04 03 50 49 --- 12 40 35 58.0 105.5 -2.3 -56.1 10 F 1 9801 03 50 49 J1453+2648 12 40 35 59.8 102.7 -2.2 -58.9 -35 1 7 9801 03 50 49 03 51 34 =1451+270 12 41 20 59.9 102.8 -2.2 -58.8 10 F 1 10401 Schedule for GBT_VLBA (Code Gb ) Page 16 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 03 51 34 UGC09618 12 41 20 58.1 105.7 -2.3 -56.0 -35 1 7 10401 03 51 34 03 52 19 --- 12 42 05 58.3 105.9 -2.3 -56.0 10 F 1 11001 03 52 19 J1453+2648 12 42 05 60.1 103.0 -2.2 -58.8 -35 1 7 11001 03 52 19 03 53 04 =1451+270 12 42 50 60.2 103.2 -2.2 -58.7 10 F 1 11601 03 53 04 UGC09618 12 42 50 58.4 106.0 -2.2 -55.9 -35 1 7 11601 03 53 04 03 53 49 --- 12 43 35 58.6 106.2 -2.2 -55.8 10 F 1 12201 03 53 49 J1453+2648 12 43 35 60.3 103.4 -2.2 -58.6 -35 1 7 12201 03 53 49 03 54 34 =1451+270 12 44 21 60.5 103.5 -2.2 -58.6 10 F 1 12801 03 54 34 UGC09618 12 44 21 58.7 106.4 -2.2 -55.7 -35 1 7 12801 03 54 34 03 55 19 --- 12 45 06 58.8 106.6 -2.2 -55.6 10 F 1 13401 03 55 19 J1453+2648 12 45 06 60.6 103.7 -2.2 -58.5 -35 1 7 13401 03 55 19 03 56 04 =1451+270 12 45 51 60.8 103.9 -2.1 -58.4 10 F 1 14005 03 56 04 UGC09618 12 45 51 59.0 106.8 -2.2 -55.6 -35 1 7 14005 03 56 04 03 56 49 --- 12 46 36 59.1 107.0 -2.2 -55.5 10 F 1 14605 03 56 49 J1453+2648 12 46 36 60.9 104.1 -2.1 -58.3 -35 1 7 14605 03 56 49 03 57 34 =1451+270 12 47 21 61.1 104.3 -2.1 -58.3 10 F 1 15205 03 57 34 UGC09618 12 47 21 59.3 107.2 -2.2 -55.4 -35 1 7 15205 03 57 34 03 58 19 --- 12 48 06 59.4 107.4 -2.2 -55.3 10 F 1 15805 03 58 19 J1453+2648 12 48 06 61.2 104.4 -2.1 -58.2 -35 1 7 15805 03 58 19 03 59 04 =1451+270 12 48 52 61.3 104.6 -2.1 -58.1 10 F 1 16405 03 59 04 UGC09618 12 48 52 59.5 107.5 -2.1 -55.2 -35 1 7 16405 03 59 04 03 59 49 --- 12 49 37 59.7 107.7 -2.1 -55.1 10 F 1 17005 03 59 49 J1453+2648 12 49 37 61.5 104.8 -2.1 -58.0 -35 1 7 17005 03 59 49 04 00 34 =1451+270 12 50 22 61.6 105.0 -2.1 -58.0 10 F 1 17605 04 00 34 UGC09618 12 50 22 59.8 107.9 -2.1 -55.0 -35 1 8 17605 04 00 34 04 01 19 --- 12 51 07 60.0 108.1 -2.1 -55.0 10 R 1 17005 04 01 19 J1453+2648 12 51 07 61.8 105.2 -2.1 -57.9 -35 1 8 17005 04 01 19 04 02 04 =1451+270 12 51 52 61.9 105.4 -2.0 -57.8 10 R 1 16405 Schedule for GBT_VLBA (Code Gb ) Page 17 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 04 02 04 UGC09618 12 51 52 60.1 108.3 -2.1 -54.9 -35 1 8 16405 04 02 04 04 02 49 --- 12 52 37 60.2 108.5 -2.1 -54.8 10 R 1 15805 04 02 49 J1453+2648 12 52 37 62.1 105.6 -2.0 -57.7 -35 1 8 15805 04 02 49 04 03 34 =1451+270 12 53 22 62.2 105.8 -2.0 -57.6 10 R 1 15205 04 03 34 UGC09618 12 53 22 60.4 108.7 -2.1 -54.7 -35 1 8 15205 04 03 34 04 04 19 --- 12 54 07 60.5 108.9 -2.1 -54.6 10 R 1 14605 04 04 19 J1453+2648 12 54 07 62.3 105.9 -2.0 -57.5 -35 1 8 14605 04 04 19 04 05 04 =1451+270 12 54 53 62.5 106.1 -2.0 -57.4 10 R 1 14005 04 05 04 UGC09618 12 54 53 60.7 109.1 -2.0 -54.5 -35 1 8 14005 04 05 04 04 05 49 --- 12 55 38 60.8 109.3 -2.0 -54.4 10 R 1 13405 04 05 50 J1453+2648 12 55 38 62.6 106.3 -2.0 -57.4 -35 1 8 13405 04 05 49 04 06 35 =1451+270 12 56 23 62.8 106.5 -2.0 -57.3 10 R 1 12797 04 06 35 UGC09618 12 56 23 60.9 109.5 -2.0 -54.3 -36 1 8 12797 04 06 35 04 07 20 --- 12 57 08 61.1 109.7 -2.0 -54.2 9 R 1 12197 04 07 20 J1453+2648 12 57 08 62.9 106.7 -2.0 -57.2 -36 1 8 12197 04 07 20 04 08 05 =1451+270 12 57 54 63.0 106.9 -1.9 -57.1 9 R 1 11597 04 08 05 UGC09618 12 57 54 61.2 110.0 -2.0 -54.1 -36 1 8 11597 04 08 05 04 08 50 --- 12 58 39 61.4 110.2 -2.0 -54.0 9 R 1 10997 04 08 50 J1453+2648 12 58 39 63.2 107.1 -1.9 -57.0 -36 1 8 10997 04 08 50 04 09 35 =1451+270 12 59 24 63.3 107.3 -1.9 -56.9 9 R 1 10397 04 09 35 UGC09618 12 59 24 61.5 110.4 -2.0 -53.9 -36 1 8 10397 04 09 35 04 10 20 --- 13 00 09 61.6 110.6 -2.0 -53.8 9 R 1 9797 04 10 20 J1453+2648 13 00 09 63.5 107.5 -1.9 -56.8 -36 1 8 9797 04 10 20 04 11 05 =1451+270 13 00 54 63.6 107.8 -1.9 -56.7 9 R 1 9197 04 11 05 UGC09618 13 00 54 61.8 110.8 -1.9 -53.6 -36 1 8 9197 04 11 05 04 11 50 --- 13 01 39 61.9 111.0 -1.9 -53.5 9 R 1 8597 04 11 50 J1453+2648 13 01 39 63.7 108.0 -1.9 -56.6 -36 1 8 8597 04 11 50 04 12 35 =1451+270 13 02 24 63.9 108.2 -1.9 -56.5 9 R 1 7997 Schedule for GBT_VLBA (Code Gb ) Page 18 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 04 12 35 UGC09618 13 02 24 62.1 111.2 -1.9 -53.4 -36 1 8 7997 04 12 35 04 13 20 --- 13 03 09 62.2 111.4 -1.9 -53.3 9 R 1 7397 04 13 20 J1453+2648 13 03 09 64.0 108.4 -1.8 -56.4 -36 1 8 7397 04 13 20 04 14 05 =1451+270 13 03 55 64.2 108.6 -1.8 -56.3 9 R 1 6797 04 16 07 1641+399 13 05 58 48.5 70.4 -3.6 -73.8 27 1 8 6797 04 16 07 04 20 07 --- 13 09 58 49.2 70.7 -3.6 -74.2 240 R 1 3597 04 22 52 1354+195 13 12 43 68.5 150.0 -0.7 -24.5 0 1 8 3597 Stopped 04 30 35 --- 13 20 27 69.3 154.7 -0.6 -20.8 463 S 1 3597 04 32 14 J1453+2648 13 22 07 67.5 114.3 -1.5 -53.1 0 1 8 3597 04 32 14 04 32 29 =1451+270 13 22 22 67.5 114.4 -1.5 -53.0 15 R 1 3397 04 32 29 UGC09618 13 22 22 65.6 117.6 -1.6 -49.8 -36 1 8 3397 04 32 29 04 33 19 --- 13 23 12 65.8 117.9 -1.6 -49.6 14 R 1 2730 04 33 19 J1453+2648 13 23 12 67.7 114.7 -1.5 -52.9 -36 1 8 2730 04 33 19 04 34 09 =1451+270 13 24 02 67.8 115.0 -1.5 -52.7 14 R 1 2064 04 34 09 UGC09618 13 24 02 65.9 118.2 -1.6 -49.4 -36 1 8 2064 04 34 09 04 34 59 --- 13 24 53 66.0 118.5 -1.5 -49.2 14 R 1 1397 04 34 59 J1453+2648 13 24 53 68.0 115.3 -1.5 -52.5 -36 1 8 1397 04 34 59 04 35 49 =1451+270 13 25 43 68.1 115.6 -1.5 -52.3 14 R 1 730 04 35 49 UGC09618 13 25 43 66.2 118.8 -1.5 -49.0 -36 1 8 730 04 35 49 04 36 39 --- 13 26 33 66.3 119.1 -1.5 -48.8 14 R 1 64 04 36 39 J1453+2648 13 26 33 68.3 115.9 -1.5 -52.1 -36 1 9 64 04 36 39 04 37 29 =1451+270 13 27 23 68.4 116.2 -1.4 -51.9 14 F 1 730 04 37 29 UGC09618 13 27 23 66.5 119.5 -1.5 -48.6 -36 1 9 730 04 37 29 04 38 19 --- 13 28 13 66.6 119.8 -1.5 -48.4 14 F 1 1397 04 38 19 J1453+2648 13 28 13 68.6 116.6 -1.4 -51.7 -36 1 9 1397 04 38 19 04 39 09 =1451+270 13 29 03 68.7 116.9 -1.4 -51.5 14 F 1 2064 04 39 09 UGC09618 13 29 03 66.8 120.1 -1.5 -48.2 -36 1 9 2064 04 39 09 04 39 59 --- 13 29 53 66.9 120.4 -1.5 -48.0 14 F 1 2730 Schedule for GBT_VLBA (Code Gb ) Page 19 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 04 39 59 J1453+2648 13 29 53 68.9 117.2 -1.4 -51.3 -36 1 9 2730 04 39 59 04 40 49 =1451+270 13 30 43 69.0 117.5 -1.4 -51.1 14 F 1 3397 04 40 49 UGC09618 13 30 43 67.0 120.7 -1.4 -47.8 -36 1 9 3397 04 40 49 04 41 39 --- 13 31 34 67.2 121.1 -1.4 -47.6 14 F 1 4064 04 41 39 J1453+2648 13 31 34 69.1 117.8 -1.4 -50.9 -36 1 9 4064 04 41 39 04 42 29 =1451+270 13 32 24 69.3 118.2 -1.4 -50.7 14 F 1 4730 04 42 29 UGC09618 13 32 24 67.3 121.4 -1.4 -47.3 -36 1 9 4730 04 42 29 04 43 19 --- 13 33 14 67.5 121.7 -1.4 -47.1 14 F 1 5397 04 43 19 J1453+2648 13 33 14 69.4 118.5 -1.3 -50.4 -36 1 9 5397 04 43 19 04 44 09 =1451+270 13 34 04 69.6 118.9 -1.3 -50.2 14 F 1 6064 04 44 09 UGC09618 13 34 04 67.6 122.1 -1.4 -46.9 -36 1 9 6064 04 44 09 04 44 59 --- 13 34 54 67.7 122.4 -1.4 -46.7 14 F 1 6730 04 44 59 J1453+2648 13 34 54 69.7 119.2 -1.3 -50.0 -36 1 9 6730 04 44 59 04 45 49 =1451+270 13 35 44 69.9 119.5 -1.3 -49.8 14 F 1 7397 04 45 49 UGC09618 13 35 44 67.9 122.8 -1.4 -46.4 -36 1 9 7397 04 45 49 04 46 39 --- 13 36 34 68.0 123.1 -1.3 -46.2 14 F 1 8064 04 46 39 J1453+2648 13 36 34 70.0 119.9 -1.3 -49.5 -36 1 9 8064 04 46 39 04 47 29 =1451+270 13 37 25 70.1 120.3 -1.3 -49.3 14 F 1 8730 04 47 29 UGC09618 13 37 25 68.2 123.5 -1.3 -45.9 -36 1 9 8730 04 47 29 04 48 19 --- 13 38 15 68.3 123.8 -1.3 -45.7 14 F 1 9397 04 48 19 J1453+2648 13 38 15 70.3 120.6 -1.3 -49.0 -36 1 9 9397 04 48 19 04 49 09 =1451+270 13 39 05 70.4 121.0 -1.3 -48.8 14 F 1 10064 04 49 09 UGC09618 13 39 05 68.4 124.2 -1.3 -45.4 -36 1 9 10064 04 49 09 04 49 59 --- 13 39 55 68.6 124.6 -1.3 -45.2 14 F 1 10730 04 49 59 J1453+2648 13 39 55 70.6 121.3 -1.2 -48.5 -36 1 9 10730 04 49 59 04 50 49 =1451+270 13 40 45 70.7 121.7 -1.2 -48.3 14 F 1 11397 04 50 49 UGC09618 13 40 45 68.7 124.9 -1.3 -44.9 -36 1 9 11397 04 50 49 04 51 39 --- 13 41 35 68.8 125.3 -1.3 -44.7 14 F 1 12064 Schedule for GBT_VLBA (Code Gb ) Page 20 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 04 51 39 J1453+2648 13 41 35 70.8 122.1 -1.2 -48.0 -36 1 9 12064 04 51 39 04 52 29 =1451+270 13 42 25 71.0 122.5 -1.2 -47.8 14 F 1 12730 04 52 29 UGC09618 13 42 25 69.0 125.7 -1.2 -44.4 -36 1 9 12730 04 52 29 04 53 19 --- 13 43 16 69.1 126.0 -1.2 -44.2 14 F 1 13397 04 53 19 J1453+2648 13 43 16 71.1 122.9 -1.2 -47.5 -36 1 9 13397 04 53 19 04 54 09 =1451+270 13 44 06 71.3 123.3 -1.2 -47.2 14 F 1 14064 04 54 09 UGC09618 13 44 06 69.2 126.4 -1.2 -43.9 -36 1 9 14064 04 54 09 04 54 59 --- 13 44 56 69.4 126.8 -1.2 -43.6 14 F 1 14730 04 54 59 J1453+2648 13 44 56 71.4 123.7 -1.2 -46.9 -36 1 9 14730 04 54 59 04 55 49 =1451+270 13 45 46 71.5 124.1 -1.1 -46.6 14 F 1 15397 04 55 49 UGC09618 13 45 46 69.5 127.2 -1.2 -43.3 -36 1 9 15397 04 55 49 04 56 39 --- 13 46 36 69.6 127.6 -1.2 -43.0 14 F 1 16064 04 56 39 J1453+2648 13 46 36 71.7 124.5 -1.1 -46.3 -36 1 9 16064 04 56 39 04 57 29 =1451+270 13 47 26 71.8 124.9 -1.1 -46.0 14 F 1 16730 04 57 29 UGC09618 13 47 26 69.7 128.0 -1.2 -42.7 -36 1 9 16730 04 57 29 04 58 19 --- 13 48 16 69.9 128.4 -1.1 -42.5 14 F 1 17397 04 58 19 J1453+2648 13 48 16 71.9 125.3 -1.1 -45.7 -36 1 10 17397 04 58 19 04 59 09 =1451+270 13 49 07 72.1 125.7 -1.1 -45.4 14 R 1 16730 04 59 09 UGC09618 13 49 07 70.0 128.8 -1.1 -42.2 -36 1 10 16730 04 59 09 04 59 59 --- 13 49 57 70.1 129.2 -1.1 -41.9 14 R 1 16064 04 59 59 J1453+2648 13 49 57 72.2 126.1 -1.1 -45.1 -36 1 10 16064 04 59 59 05 00 49 =1451+270 13 50 47 72.3 126.6 -1.1 -44.8 14 R 1 15397 05 00 49 UGC09618 13 50 47 70.3 129.7 -1.1 -41.5 -36 1 10 15397 05 00 49 05 01 39 --- 13 51 37 70.4 130.1 -1.1 -41.2 14 R 1 14730 05 01 39 J1453+2648 13 51 37 72.5 127.0 -1.0 -44.5 -36 1 10 14730 05 01 39 05 02 29 =1451+270 13 52 27 72.6 127.5 -1.0 -44.1 14 R 1 14064 05 02 29 UGC09618 13 52 27 70.5 130.5 -1.1 -40.9 -36 1 10 14064 05 02 29 05 03 19 --- 13 53 17 70.6 130.9 -1.1 -40.6 14 R 1 13397 Schedule for GBT_VLBA (Code Gb ) Page 21 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 05 03 19 J1453+2648 13 53 17 72.7 127.9 -1.0 -43.8 -36 1 10 13397 05 03 19 05 04 09 =1451+270 13 54 07 72.9 128.4 -1.0 -43.5 14 R 1 12730 05 04 09 UGC09618 13 54 07 70.8 131.4 -1.1 -40.3 -36 1 10 12730 05 04 09 05 04 59 --- 13 54 57 70.9 131.8 -1.0 -39.9 14 R 1 12064 05 04 59 J1453+2648 13 54 57 73.0 128.8 -1.0 -43.1 -35 1 10 12064 05 04 59 05 05 49 =1451+270 13 55 48 73.1 129.3 -1.0 -42.8 15 R 1 11397 05 05 49 UGC09618 13 55 48 71.0 132.3 -1.0 -39.6 -35 1 10 11397 05 05 49 05 06 39 --- 13 56 38 71.1 132.7 -1.0 -39.3 15 R 1 10730 05 06 39 J1453+2648 13 56 38 73.2 129.8 -1.0 -42.4 -35 1 10 10730 05 06 39 05 07 29 =1451+270 13 57 28 73.4 130.3 -0.9 -42.0 15 R 1 10064 05 07 29 UGC09618 13 57 28 71.2 133.2 -1.0 -38.9 -35 1 10 10064 05 07 29 05 08 19 --- 13 58 18 71.4 133.6 -1.0 -38.6 15 R 1 9397 05 08 19 J1453+2648 13 58 18 73.5 130.7 -0.9 -41.7 -35 1 10 9397 05 08 19 05 09 09 =1451+270 13 59 08 73.6 131.2 -0.9 -41.3 15 R 1 8730 05 09 09 UGC09618 13 59 08 71.5 134.1 -1.0 -38.2 -35 1 10 8730 05 09 09 05 09 54 --- 13 59 53 71.6 134.5 -1.0 -37.9 10 R 1 8130 05 09 54 J1453+2648 13 59 53 73.7 131.7 -0.9 -40.9 -35 1 10 8130 05 09 54 05 10 39 =1451+270 14 00 38 73.8 132.1 -0.9 -40.6 10 R 1 7530 05 10 39 UGC09618 14 00 38 71.7 135.0 -0.9 -37.6 -35 1 10 7530 05 10 39 05 11 24 --- 14 01 24 71.8 135.4 -0.9 -37.2 10 R 1 6930 05 11 24 J1453+2648 14 01 24 73.9 132.6 -0.9 -40.2 -35 1 10 6930 05 11 24 05 12 09 =1451+270 14 02 09 74.0 133.1 -0.9 -39.9 10 R 1 6330 05 12 09 UGC09618 14 02 09 71.9 135.8 -0.9 -36.9 -35 1 10 6330 05 12 09 05 12 54 --- 14 02 54 72.0 136.3 -0.9 -36.5 10 R 1 5730 05 12 54 J1453+2648 14 02 54 74.2 133.5 -0.9 -39.5 -35 1 10 5730 05 12 54 05 13 39 =1451+270 14 03 39 74.3 134.0 -0.8 -39.1 10 R 1 5130 05 13 39 UGC09618 14 03 39 72.1 136.7 -0.9 -36.2 -35 1 10 5130 05 13 39 05 14 24 --- 14 04 24 72.2 137.2 -0.9 -35.9 10 R 1 4530 Schedule for GBT_VLBA (Code Gb ) Page 22 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 05 14 24 J1453+2648 14 04 24 74.4 134.5 -0.8 -38.7 -35 1 10 4530 05 14 24 05 15 09 =1451+270 14 05 09 74.5 135.0 -0.8 -38.4 10 R 1 3930 05 15 09 UGC09618 14 05 09 72.3 137.6 -0.9 -35.5 -35 1 10 3930 05 15 09 05 15 54 --- 14 05 54 72.4 138.1 -0.9 -35.1 10 R 1 3330 05 15 54 J1453+2648 14 05 54 74.6 135.5 -0.8 -38.0 -34 1 10 3330 05 15 54 05 16 39 =1451+270 14 06 39 74.7 136.0 -0.8 -37.6 11 R 1 2730 05 16 39 UGC09618 14 06 39 72.5 138.5 -0.8 -34.8 -34 1 10 2730 05 16 39 05 17 24 --- 14 07 24 72.6 139.0 -0.8 -34.4 11 R 1 2130 05 17 24 J1453+2648 14 07 24 74.8 136.5 -0.8 -37.2 -34 1 10 2130 05 17 24 05 18 09 =1451+270 14 08 10 74.9 137.0 -0.8 -36.8 11 R 1 1530 05 18 09 UGC09618 14 08 10 72.7 139.5 -0.8 -34.0 -34 1 10 1530 05 18 09 05 18 54 --- 14 08 55 72.8 140.0 -0.8 -33.6 11 R 1 930 05 18 54 J1453+2648 14 08 55 75.0 137.5 -0.8 -36.3 -34 1 10 930 05 18 54 05 19 39 =1451+270 14 09 40 75.1 138.0 -0.7 -35.9 11 R 1 330 05 19 39 UGC09618 14 09 40 72.9 140.5 -0.8 -33.3 -34 1 11 330 05 19 39 05 20 24 --- 14 10 25 73.0 140.9 -0.8 -32.9 11 F 1 930 05 20 24 J1453+2648 14 10 25 75.2 138.6 -0.7 -35.5 -34 1 11 930 05 20 24 05 21 09 =1451+270 14 11 10 75.3 139.1 -0.7 -35.1 11 F 1 1530 05 21 09 UGC09618 14 11 10 73.1 141.4 -0.8 -32.5 -34 1 11 1530 05 21 09 05 21 54 --- 14 11 55 73.2 141.9 -0.8 -32.1 11 F 1 2130 05 21 54 J1453+2648 14 11 55 75.4 139.7 -0.7 -34.6 -33 1 11 2130 05 21 54 05 22 39 =1451+270 14 12 40 75.5 140.2 -0.7 -34.2 12 F 1 2730 05 22 39 UGC09618 14 12 40 73.2 142.4 -0.7 -31.7 -33 1 11 2730 05 22 39 05 23 24 --- 14 13 25 73.3 142.9 -0.7 -31.3 12 F 1 3330 05 23 24 J1453+2648 14 13 25 75.6 140.8 -0.7 -33.7 -33 1 11 3330 05 23 24 05 24 09 =1451+270 14 14 11 75.6 141.3 -0.7 -33.3 12 F 1 3930 05 24 09 UGC09618 14 14 11 73.4 143.4 -0.7 -30.9 -33 1 11 3930 05 24 09 05 24 54 --- 14 14 56 73.5 144.0 -0.7 -30.4 12 F 1 4530 Schedule for GBT_VLBA (Code Gb ) Page 23 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 05 24 54 J1453+2648 14 14 56 75.7 141.9 -0.7 -32.8 -33 1 11 4530 05 24 54 05 25 39 =1451+270 14 15 41 75.8 142.5 -0.6 -32.3 12 F 1 5130 05 25 39 UGC09618 14 15 41 73.6 144.5 -0.7 -30.0 -33 1 11 5130 05 25 39 05 26 24 --- 14 16 26 73.7 145.0 -0.7 -29.6 12 F 1 5730 05 26 24 J1453+2648 14 16 26 75.9 143.1 -0.6 -31.8 -33 1 11 5730 05 26 24 05 27 09 =1451+270 14 17 11 76.0 143.6 -0.6 -31.3 12 F 1 6330 05 27 09 UGC09618 14 17 11 73.8 145.5 -0.7 -29.2 -33 1 11 6330 05 27 09 05 27 54 --- 14 17 56 73.8 146.1 -0.7 -28.7 12 F 1 6930 05 27 54 J1453+2648 14 17 56 76.1 144.2 -0.6 -30.9 -34 1 11 6930 05 27 54 05 28 39 =1451+270 14 18 41 76.2 144.8 -0.6 -30.4 11 F 1 7530 05 28 39 UGC09618 14 18 41 73.9 146.6 -0.6 -28.3 -34 1 11 7530 05 28 39 05 29 24 --- 14 19 26 74.0 147.2 -0.6 -27.8 11 F 1 8130 05 29 24 J1453+2648 14 19 26 76.3 145.4 -0.6 -29.8 -34 1 11 8130 05 29 24 05 30 09 =1451+270 14 20 12 76.3 146.1 -0.6 -29.3 11 F 1 8730 05 30 09 UGC09618 14 20 12 74.1 147.7 -0.6 -27.4 -34 1 11 8730 05 30 09 05 30 54 --- 14 20 57 74.2 148.3 -0.6 -26.9 11 F 1 9330 05 30 54 J1453+2648 14 20 57 76.4 146.7 -0.6 -28.8 -34 1 11 9330 05 30 54 05 31 39 =1451+270 14 21 42 76.5 147.3 -0.5 -28.3 11 F 1 9930 05 31 39 UGC09618 14 21 42 74.2 148.8 -0.6 -26.5 -34 1 11 9930 05 31 39 05 32 24 --- 14 22 27 74.3 149.4 -0.6 -26.0 11 F 1 10530 05 32 24 J1453+2648 14 22 27 76.6 148.0 -0.5 -27.7 -33 1 11 10530 05 32 24 05 33 09 =1451+270 14 23 12 76.7 148.6 -0.5 -27.2 12 F 1 11132 05 33 09 UGC09618 14 23 12 74.4 150.0 -0.6 -25.5 -34 1 11 11132 05 33 09 05 33 54 --- 14 23 57 74.5 150.6 -0.6 -25.1 11 F 1 11732 05 33 54 J1453+2648 14 23 57 76.7 149.3 -0.5 -26.7 -34 1 11 11732 05 33 54 05 34 39 =1451+270 14 24 42 76.8 149.9 -0.5 -26.1 11 F 1 12332 05 34 39 UGC09618 14 24 42 74.5 151.1 -0.5 -24.6 -34 1 11 12332 05 34 39 05 35 24 --- 14 25 28 74.6 151.7 -0.5 -24.1 11 F 1 12932 Schedule for GBT_VLBA (Code Gb ) Page 24 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 05 35 24 J1453+2648 14 25 28 76.9 150.6 -0.5 -25.5 -34 1 11 12932 05 35 24 05 36 09 =1451+270 14 26 13 77.0 151.2 -0.5 -25.0 11 F 1 13532 05 36 09 UGC09618 14 26 13 74.7 152.3 -0.5 -23.6 -34 1 11 13532 05 36 09 05 36 54 --- 14 26 58 74.7 152.9 -0.5 -23.1 11 F 1 14132 05 36 54 J1453+2648 14 26 58 77.0 151.9 -0.5 -24.4 -34 1 11 14132 05 36 54 05 37 39 =1451+270 14 27 43 77.1 152.6 -0.4 -23.8 11 F 1 14732 05 37 39 UGC09618 14 27 43 74.8 153.5 -0.5 -22.6 -34 1 11 14732 05 37 39 05 38 24 --- 14 28 28 74.9 154.1 -0.5 -22.1 11 F 1 15332 05 38 24 J1453+2648 14 28 28 77.2 153.3 -0.4 -23.2 -34 1 11 15332 05 38 24 05 39 09 =1451+270 14 29 13 77.2 154.0 -0.4 -22.6 11 F 1 15932 05 39 09 UGC09618 14 29 13 74.9 154.7 -0.5 -21.6 -34 1 11 15932 05 39 09 05 39 54 --- 14 29 58 75.0 155.3 -0.5 -21.1 11 F 1 16532 05 39 54 J1453+2648 14 29 58 77.3 154.7 -0.4 -22.0 -34 1 11 16532 05 39 54 05 40 39 =1451+270 14 30 43 77.4 155.4 -0.4 -21.4 11 F 1 17132 05 43 23 1641+399 14 33 27 64.9 76.6 -2.2 -82.6 0 1 12 17132 05 43 23 05 47 23 --- 14 37 28 65.7 76.8 -2.1 -83.1 240 R 1 14868 05 48 25 1611+343 14 38 31 70.4 95.1 -1.6 -70.6 0 1 12 14868 Stopped 05 55 10 --- 14 45 17 71.7 96.6 -1.5 -70.2 405 S 1 14868 05 57 50 J1453+2648 14 47 57 78.3 173.2 -0.1 -6.0 0 1 12 14868 05 57 50 05 58 05 =1451+270 14 48 12 78.3 173.5 -0.1 -5.7 15 R 1 14668 05 58 05 UGC09618 14 48 12 76.0 171.4 -0.2 -7.4 -34 1 12 14668 05 58 05 05 58 50 --- 14 48 57 76.0 172.1 -0.1 -6.8 11 R 1 14068 05 58 50 J1453+2648 14 48 57 78.3 174.3 -0.1 -5.0 -34 1 12 14068 05 58 50 05 59 35 =1451+270 14 49 42 78.3 175.1 -0.1 -4.3 11 R 1 13468 05 59 35 UGC09618 14 49 42 76.1 172.8 -0.1 -6.2 -33 1 12 13468 05 59 35 06 00 20 --- 14 50 27 76.1 173.5 -0.1 -5.6 12 R 1 12868 06 00 20 J1453+2648 14 50 27 78.3 175.9 -0.1 -3.6 -34 1 12 12868 06 00 20 06 01 05 =1451+270 14 51 12 78.3 176.8 0.0 -2.8 11 R 1 12268 Schedule for GBT_VLBA (Code Gb ) Page 25 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 06 01 05 UGC09618 14 51 12 76.1 174.3 -0.1 -4.9 -34 1 12 12268 06 01 05 06 01 50 --- 14 51 58 76.1 175.0 -0.1 -4.3 11 R 1 11668 06 01 50 J1453+2648 14 51 58 78.3 177.6 0.0 -2.1 -34 1 12 11668 06 01 50 06 02 35 =1451+270 14 52 43 78.3 178.4 0.0 -1.4 11 R 1 11068 06 02 35 UGC09618 14 52 43 76.1 175.7 -0.1 -3.7 -35 1 12 11068 06 02 35 06 03 20 --- 14 53 28 76.1 176.4 -0.1 -3.1 10 R 1 10468 06 03 20 J1453+2648 14 53 28 78.4 179.2 0.0 -0.7 -35 1 12 10468 06 03 20 06 04 05 =1451+270 14 54 13 78.4 180.1 0.0 0.1 10 R 1 9868 06 04 05 UGC09618 14 54 13 76.1 177.1 -0.1 -2.5 -35 1 12 9868 06 04 05 06 04 50 --- 14 54 58 76.2 177.8 0.0 -1.9 10 R 1 9268 06 04 50 J1453+2648 14 54 58 78.4 180.9 0.0 0.8 -36 1 12 9268 06 04 50 06 05 35 =1451+270 14 55 43 78.3 181.7 0.0 1.5 9 R 1 8668 06 05 35 UGC09618 14 55 43 76.2 178.5 0.0 -1.3 -36 1 12 8668 06 05 35 06 06 25 --- 14 56 33 76.2 179.3 0.0 -0.6 14 R 1 8001 06 06 25 J1453+2648 14 56 33 78.3 182.7 0.0 2.3 -36 1 12 8001 06 06 25 06 07 15 =1451+270 14 57 23 78.3 183.6 0.1 3.1 14 R 1 7334 06 07 15 UGC09618 14 57 23 76.2 180.1 0.0 0.1 -37 1 12 7334 06 07 15 06 08 05 --- 14 58 14 76.2 180.9 0.0 0.8 13 R 1 6668 06 08 05 J1453+2648 14 58 14 78.3 184.5 0.1 4.0 -37 1 12 6668 06 08 05 06 08 55 =1451+270 14 59 04 78.3 185.4 0.1 4.8 13 R 1 6001 06 08 55 UGC09618 14 59 04 76.2 181.7 0.0 1.5 -37 1 12 6001 06 08 55 06 09 45 --- 14 59 54 76.1 182.5 0.0 2.2 13 R 1 5334 06 09 45 J1453+2648 14 59 54 78.3 186.3 0.1 5.6 -38 1 12 5334 06 09 45 06 10 35 =1451+270 15 00 44 78.3 187.3 0.1 6.4 12 R 1 4668 06 10 35 UGC09618 15 00 44 76.1 183.3 0.1 2.8 -38 1 12 4668 06 10 35 06 11 25 --- 15 01 34 76.1 184.1 0.1 3.5 12 R 1 4001 06 11 25 J1453+2648 15 01 34 78.2 188.2 0.1 7.2 -38 1 12 4001 06 11 25 06 12 15 =1451+270 15 02 24 78.2 189.1 0.1 7.9 12 R 1 3334 Schedule for GBT_VLBA (Code Gb ) Page 26 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 06 12 15 UGC09618 15 02 24 76.1 184.9 0.1 4.2 -38 1 12 3334 06 12 15 06 13 05 --- 15 03 14 76.1 185.7 0.1 4.9 12 R 1 2668 06 13 05 J1453+2648 15 03 14 78.2 190.0 0.2 8.7 -39 1 12 2668 06 13 05 06 13 55 =1451+270 15 04 05 78.2 190.9 0.2 9.5 11 R 1 2001 06 13 55 UGC09618 15 04 05 76.1 186.4 0.1 5.6 -39 1 12 2001 06 13 55 06 14 45 --- 15 04 55 76.1 187.2 0.1 6.2 11 R 1 1334 06 14 45 J1453+2648 15 04 55 78.1 191.8 0.2 10.3 -39 1 12 1334 06 14 45 06 15 35 =1451+270 15 05 45 78.1 192.7 0.2 11.1 11 R 1 668 06 15 35 UGC09618 15 05 45 76.0 188.0 0.1 6.9 -39 1 12 668 06 15 35 06 16 25 --- 15 06 35 76.0 188.8 0.2 7.6 11 R 1 1 06 16 25 J1453+2648 15 06 35 78.1 193.5 0.2 11.9 -39 1 13 1 06 16 25 06 17 15 =1451+270 15 07 25 78.0 194.4 0.2 12.6 11 F 1 668 06 17 15 UGC09618 15 07 25 76.0 189.6 0.2 8.2 -40 1 13 668 06 17 15 06 18 05 --- 15 08 15 76.0 190.4 0.2 8.9 10 F 1 1334 06 18 05 J1453+2648 15 08 16 78.0 195.3 0.2 13.4 -40 1 13 1334 06 18 05 06 19 00 =1451+270 15 09 11 77.9 196.3 0.3 14.2 15 F 1 2073 06 19 00 UGC09618 15 09 11 75.9 191.2 0.2 9.6 -40 1 13 2073 06 19 00 06 19 55 --- 15 10 06 75.9 192.1 0.2 10.4 15 F 1 2806 06 19 55 J1453+2648 15 10 06 77.9 197.2 0.3 15.0 -40 1 13 2806 06 19 55 06 20 50 =1451+270 15 11 01 77.8 198.1 0.3 15.9 15 F 1 3539 06 20 50 UGC09618 15 11 01 75.9 192.9 0.2 11.1 -40 1 13 3539 06 20 50 06 21 45 --- 15 11 56 75.8 193.7 0.2 11.8 15 F 1 4273 06 21 45 J1453+2648 15 11 56 77.8 199.1 0.3 16.7 -41 1 13 4273 06 21 45 06 22 40 =1451+270 15 12 51 77.7 200.0 0.3 17.5 14 F 1 5006 06 22 40 UGC09618 15 12 51 75.8 194.6 0.3 12.5 -41 1 13 5006 06 22 40 06 23 35 --- 15 13 46 75.7 195.4 0.3 13.2 14 F 1 5739 06 23 35 J1453+2648 15 13 46 77.6 200.9 0.3 18.3 -41 1 13 5739 06 23 35 06 24 30 =1451+270 15 14 42 77.6 201.8 0.3 19.0 14 F 1 6473 Schedule for GBT_VLBA (Code Gb ) Page 27 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 06 24 30 UGC09618 15 14 42 75.7 196.2 0.3 13.9 -41 1 13 6473 06 24 30 06 25 25 --- 15 15 37 75.6 197.0 0.3 14.6 14 F 1 7206 06 25 25 J1453+2648 15 15 37 77.5 202.7 0.4 19.8 -41 1 13 7206 06 25 25 06 26 20 =1451+270 15 16 32 77.4 203.6 0.4 20.6 14 F 1 7939 06 26 20 UGC09618 15 16 32 75.6 197.8 0.3 15.3 -41 1 13 7939 06 26 20 06 27 15 --- 15 17 27 75.5 198.6 0.3 16.0 14 F 1 8673 06 27 15 J1453+2648 15 17 27 77.4 204.5 0.4 21.3 -42 1 13 8673 06 27 15 06 28 10 =1451+270 15 18 22 77.3 205.3 0.4 22.1 13 F 1 9406 06 28 10 UGC09618 15 18 22 75.5 199.4 0.4 16.7 -42 1 13 9406 06 28 10 06 29 05 --- 15 19 17 75.4 200.2 0.4 17.3 13 F 1 10139 06 29 05 J1453+2648 15 19 17 77.2 206.2 0.4 22.8 -42 1 13 10139 06 29 05 06 30 00 =1451+270 15 20 13 77.1 207.1 0.4 23.5 13 F 1 10873 06 30 00 UGC09618 15 20 13 75.3 201.0 0.4 18.0 -42 1 13 10873 06 30 00 06 30 55 --- 15 21 08 75.3 201.8 0.4 18.7 13 F 1 11606 06 30 55 J1453+2648 15 21 08 77.0 207.9 0.4 24.2 -42 1 13 11606 06 30 55 06 31 50 =1451+270 15 22 03 77.0 208.7 0.5 24.9 13 F 1 12339 06 31 50 UGC09618 15 22 03 75.2 202.6 0.4 19.3 -42 1 13 12339 06 31 50 06 32 45 --- 15 22 58 75.1 203.4 0.4 20.0 13 F 1 13073 06 32 45 J1453+2648 15 22 58 76.9 209.5 0.5 25.6 -42 1 13 13073 06 32 45 06 33 40 =1451+270 15 23 53 76.8 210.4 0.5 26.3 13 F 1 13806 06 33 40 UGC09618 15 23 53 75.1 204.1 0.4 20.6 -42 1 13 13806 06 33 40 06 34 35 --- 15 24 48 75.0 204.9 0.5 21.2 13 F 1 14539 06 34 35 J1453+2648 15 24 48 76.7 211.2 0.5 27.0 -42 1 13 14539 06 34 35 06 35 30 =1451+270 15 25 43 76.6 211.9 0.5 27.7 13 F 1 15273 06 35 30 UGC09618 15 25 43 74.9 205.6 0.5 21.9 -42 1 13 15273 06 35 30 06 36 25 --- 15 26 39 74.8 206.4 0.5 22.5 13 F 1 16006 06 36 25 J1453+2648 15 26 39 76.5 212.7 0.5 28.3 -43 1 13 16006 06 36 25 06 37 20 =1451+270 15 27 34 76.4 213.5 0.6 29.0 12 F 1 16739 Schedule for GBT_VLBA (Code Gb ) Page 28 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 06 37 20 UGC09618 15 27 34 74.7 207.1 0.5 23.1 -43 1 13 16739 06 37 20 06 38 15 --- 15 28 29 74.7 207.8 0.5 23.7 12 F 1 17473 06 38 15 J1453+2648 15 28 29 76.3 214.3 0.6 29.6 -43 1 14 17473 06 38 15 06 39 10 =1451+270 15 29 24 76.2 215.0 0.6 30.2 12 R 1 16739 06 39 10 UGC09618 15 29 24 74.6 208.5 0.5 24.3 -43 1 14 16739 06 39 10 06 40 05 --- 15 30 19 74.5 209.3 0.6 24.9 12 R 1 16006 06 40 05 J1453+2648 15 30 19 76.1 215.7 0.6 30.8 -43 1 14 16006 06 40 05 06 41 00 =1451+270 15 31 14 76.0 216.5 0.6 31.4 12 R 1 15273 06 41 00 UGC09618 15 31 14 74.4 210.0 0.6 25.5 -43 1 14 15273 06 41 00 06 41 55 --- 15 32 09 74.3 210.7 0.6 26.1 12 R 1 14539 06 41 55 J1453+2648 15 32 09 75.9 217.2 0.6 32.0 -43 1 14 14539 06 41 55 06 42 50 =1451+270 15 33 05 75.8 217.9 0.6 32.6 12 R 1 13806 06 42 50 UGC09618 15 33 05 74.2 211.3 0.6 26.6 -43 1 14 13806 06 42 50 06 43 45 --- 15 34 00 74.1 212.0 0.6 27.2 12 R 1 13073 06 43 45 J1453+2648 15 34 00 75.7 218.6 0.7 33.2 -43 1 14 13073 06 43 45 06 44 40 =1451+270 15 34 55 75.6 219.3 0.7 33.7 12 R 1 12339 06 44 40 UGC09618 15 34 55 74.0 212.7 0.6 27.7 -43 1 14 12339 06 44 40 06 45 35 --- 15 35 50 73.9 213.4 0.6 28.3 12 R 1 11606 06 45 35 J1453+2648 15 35 50 75.4 220.0 0.7 34.3 -43 1 14 11606 06 45 35 06 46 30 =1451+270 15 36 45 75.3 220.6 0.7 34.8 12 R 1 10873 06 46 30 UGC09618 15 36 45 73.8 214.0 0.7 28.8 -43 1 14 10873 06 46 30 06 47 25 --- 15 37 40 73.7 214.7 0.7 29.4 12 R 1 10139 06 47 25 J1453+2648 15 37 40 75.2 221.3 0.7 35.4 -43 1 14 10139 06 47 25 06 48 20 =1451+270 15 38 36 75.1 221.9 0.7 35.9 12 R 1 9406 06 48 20 UGC09618 15 38 36 73.6 215.3 0.7 29.9 -43 1 14 9406 06 48 20 06 49 15 --- 15 39 31 73.5 216.0 0.7 30.4 12 R 1 8673 06 49 15 J1453+2648 15 39 31 75.0 222.6 0.8 36.4 -43 1 14 8673 06 49 15 06 50 10 =1451+270 15 40 26 74.8 223.2 0.8 36.9 12 R 1 7939 Schedule for GBT_VLBA (Code Gb ) Page 29 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 06 50 10 UGC09618 15 40 26 73.4 216.6 0.7 30.9 -43 1 14 7939 06 50 10 06 51 05 --- 15 41 21 73.3 217.2 0.7 31.4 12 R 1 7206 06 51 05 J1453+2648 15 41 21 74.7 223.8 0.8 37.4 -43 1 14 7206 06 51 05 06 52 00 =1451+270 15 42 16 74.6 224.4 0.8 37.9 12 R 1 6473 06 52 00 UGC09618 15 42 16 73.2 217.8 0.8 31.9 -43 1 14 6473 06 52 00 06 52 55 --- 15 43 11 73.1 218.5 0.8 32.4 12 R 1 5739 06 52 55 J1453+2648 15 43 11 74.5 225.0 0.8 38.4 -43 1 14 5739 06 52 55 06 53 50 =1451+270 15 44 06 74.3 225.6 0.8 38.9 12 R 1 5006 06 53 50 UGC09618 15 44 06 73.0 219.1 0.8 32.9 -43 1 14 5006 06 53 50 06 54 45 --- 15 45 02 72.9 219.7 0.8 33.3 12 R 1 4273 06 54 45 J1453+2648 15 45 02 74.2 226.2 0.8 39.3 -43 1 14 4273 06 54 45 06 55 40 =1451+270 15 45 57 74.1 226.8 0.9 39.8 12 R 1 3539 06 55 40 UGC09618 15 45 57 72.7 220.2 0.8 33.8 -43 1 14 3539 06 55 40 06 56 35 --- 15 46 52 72.6 220.8 0.8 34.3 12 R 1 2806 06 56 35 J1453+2648 15 46 52 73.9 227.4 0.9 40.2 -43 1 14 2806 06 56 35 06 57 30 =1451+270 15 47 47 73.8 227.9 0.9 40.7 12 R 1 2073 06 59 04 3C286 15 49 21 60.7 264.8 2.3 64.9 0 1 14 2073 Stopped 07 09 28 --- 15 59 46 58.6 266.7 2.5 65.2 624 S 1 2073 ----------- Tape Change ------------ 07 14 43 1641+399 16 05 03 82.5 436.6 -0.6 -97.4 0 2 1 2073 07 14 43 07 18 43 --- 16 09 03 83.2 435.7 -0.6 -98.9 240 F 1 1127 Next scan frequencies: 21479.42 21493.82 21418.85 21434.85 Next BBC frequencies: 679.42 693.82 618.85 634.85 07 19 06 1641+399 16 09 26 83.3 435.6 -0.6 -99.1 0 2 1 1127 07 19 06 07 23 06 --- 16 13 27 84.1 434.4 -0.5 -100.9 240 F 1 4327 07 28 58 J1453+2648 16 19 20 68.7 243.2 1.4 51.5 2 2 1 4327 07 28 58 07 29 13 =1451+270 16 19 35 68.7 243.3 1.4 51.6 15 F 1 4527 07 29 13 UGC09618 16 19 35 67.7 237.6 1.4 46.6 -41 2 1 4527 07 29 13 07 30 08 --- 16 20 30 67.6 237.9 1.4 46.9 14 F 1 5261 Schedule for GBT_VLBA (Code Gb ) Page 30 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 07 30 08 J1453+2648 16 20 30 68.5 243.6 1.4 51.8 -41 2 1 5261 07 30 08 07 31 03 =1451+270 16 21 25 68.3 244.0 1.5 52.0 14 F 1 5994 07 31 03 UGC09618 16 21 25 67.4 238.3 1.4 47.1 -41 2 1 5994 07 31 03 07 31 58 --- 16 22 20 67.3 238.7 1.4 47.4 14 F 1 6727 07 31 58 J1453+2648 16 22 20 68.2 244.3 1.5 52.2 -41 2 1 6727 07 31 58 07 32 53 =1451+270 16 23 15 68.0 244.6 1.5 52.5 14 F 1 7461 07 32 53 UGC09618 16 23 15 67.1 239.0 1.4 47.6 -41 2 1 7461 07 32 53 07 33 48 --- 16 24 11 67.0 239.4 1.4 47.9 14 F 1 8194 07 33 48 J1453+2648 16 24 11 67.8 245.0 1.5 52.7 -41 2 1 8194 07 33 48 07 34 43 =1451+270 16 25 06 67.7 245.3 1.5 52.9 14 F 1 8927 07 34 43 UGC09618 16 25 06 66.8 239.8 1.5 48.1 -41 2 1 8927 07 34 43 07 35 38 --- 16 26 01 66.7 240.1 1.5 48.3 14 F 1 9661 07 35 38 J1453+2648 16 26 01 67.5 245.6 1.5 53.1 -41 2 1 9661 07 35 38 07 36 33 =1451+270 16 26 56 67.3 245.9 1.5 53.2 14 F 1 10394 07 36 33 UGC09618 16 26 56 66.5 240.5 1.5 48.5 -41 2 1 10394 07 36 33 07 37 28 --- 16 27 51 66.4 240.8 1.5 48.8 14 F 1 11127 07 37 28 J1453+2648 16 27 51 67.2 246.3 1.6 53.4 -41 2 1 11127 07 37 28 07 38 23 =1451+270 16 28 46 67.0 246.6 1.6 53.6 14 F 1 11861 07 38 23 UGC09618 16 28 46 66.2 241.1 1.5 49.0 -41 2 1 11861 07 38 23 07 39 18 --- 16 29 42 66.0 241.5 1.5 49.2 14 F 1 12594 07 39 18 J1453+2648 16 29 42 66.9 246.9 1.6 53.8 -41 2 1 12594 07 39 18 07 40 13 =1451+270 16 30 37 66.7 247.2 1.6 54.0 14 F 1 13327 07 40 13 UGC09618 16 30 37 65.9 241.8 1.6 49.4 -41 2 1 13327 07 40 13 07 41 08 --- 16 31 32 65.7 242.2 1.6 49.6 14 F 1 14061 07 41 08 J1453+2648 16 31 32 66.5 247.5 1.6 54.2 -41 2 1 14061 07 41 08 07 42 03 =1451+270 16 32 27 66.4 247.8 1.6 54.3 14 F 1 14794 07 42 03 UGC09618 16 32 27 65.6 242.5 1.6 49.8 -41 2 1 14794 07 42 03 07 42 58 --- 16 33 22 65.4 242.8 1.6 50.0 14 F 1 15527 Schedule for GBT_VLBA (Code Gb ) Page 31 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 07 42 58 J1453+2648 16 33 22 66.2 248.1 1.7 54.5 -41 2 1 15527 07 42 58 07 43 53 =1451+270 16 34 17 66.0 248.4 1.7 54.7 14 F 1 16261 07 43 53 UGC09618 16 34 17 65.2 243.1 1.6 50.2 -40 2 1 16261 07 43 53 07 44 48 --- 16 35 12 65.1 243.4 1.6 50.4 15 F 1 16994 07 44 48 J1453+2648 16 35 12 65.9 248.7 1.7 54.8 -40 2 2 16994 07 44 48 07 45 43 =1451+270 16 36 08 65.7 249.0 1.7 55.0 15 R 1 17473 07 45 43 UGC09618 16 36 08 64.9 243.8 1.6 50.6 -40 2 2 17473 07 45 43 07 46 38 --- 16 37 03 64.8 244.1 1.7 50.8 15 R 1 16739 07 46 38 J1453+2648 16 37 03 65.5 249.2 1.7 55.1 -40 2 2 16739 07 46 38 07 47 33 =1451+270 16 37 58 65.4 249.5 1.7 55.3 15 R 1 16006 07 47 33 UGC09618 16 37 58 64.6 244.4 1.7 51.0 -40 2 2 16006 07 47 33 07 48 23 --- 16 38 48 64.4 244.7 1.7 51.1 10 R 1 15339 07 48 23 J1453+2648 16 38 48 65.2 249.8 1.7 55.4 -40 2 2 15339 07 48 23 07 49 13 =1451+270 16 39 38 65.0 250.0 1.8 55.6 10 R 1 14673 07 49 13 UGC09618 16 39 38 64.3 244.9 1.7 51.3 -40 2 2 14673 07 49 13 07 50 03 --- 16 40 28 64.2 245.2 1.7 51.4 10 R 1 14006 07 50 03 J1453+2648 16 40 28 64.9 250.3 1.8 55.7 -40 2 2 14006 07 50 03 07 50 53 =1451+270 16 41 18 64.7 250.5 1.8 55.8 10 R 1 13339 07 50 53 UGC09618 16 41 18 64.0 245.5 1.7 51.6 -40 2 2 13339 07 50 53 07 51 43 --- 16 42 09 63.9 245.7 1.7 51.8 10 R 1 12673 07 51 43 J1453+2648 16 42 09 64.6 250.8 1.8 55.9 -40 2 2 12673 07 51 43 07 52 33 =1451+270 16 42 59 64.4 251.0 1.8 56.1 10 R 1 12006 07 52 33 UGC09618 16 42 59 63.7 246.0 1.8 51.9 -40 2 2 12006 07 52 33 07 53 23 --- 16 43 49 63.6 246.3 1.8 52.1 10 R 1 11339 07 53 23 J1453+2648 16 43 49 64.3 251.2 1.8 56.2 -40 2 2 11339 07 53 23 07 54 13 =1451+270 16 44 39 64.1 251.5 1.8 56.3 10 R 1 10673 07 54 13 UGC09618 16 44 39 63.4 246.5 1.8 52.2 -40 2 2 10673 07 54 13 07 55 03 --- 16 45 29 63.3 246.8 1.8 52.3 10 R 1 10006 Schedule for GBT_VLBA (Code Gb ) Page 32 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 07 55 03 J1453+2648 16 45 29 64.0 251.7 1.9 56.4 -40 2 2 10006 07 55 03 07 55 53 =1451+270 16 46 19 63.8 252.0 1.9 56.5 10 R 1 9340 07 55 53 UGC09618 16 46 19 63.1 247.0 1.8 52.5 -40 2 2 9340 07 55 53 07 56 43 --- 16 47 09 63.0 247.3 1.8 52.6 10 R 1 8673 07 56 43 J1453+2648 16 47 09 63.6 252.2 1.9 56.7 -40 2 2 8673 07 56 43 07 57 33 =1451+270 16 48 00 63.5 252.4 1.9 56.8 10 R 1 8006 07 57 33 UGC09618 16 48 00 62.8 247.6 1.8 52.8 -40 2 2 8006 07 57 33 07 58 23 --- 16 48 50 62.7 247.8 1.9 52.9 10 R 1 7340 07 58 23 J1453+2648 16 48 50 63.3 252.6 1.9 56.9 -40 2 2 7340 07 58 23 07 59 13 =1451+270 16 49 40 63.2 252.9 1.9 57.0 10 R 1 6673 07 59 13 UGC09618 16 49 40 62.5 248.1 1.9 53.0 -40 2 2 6673 07 59 13 08 00 03 --- 16 50 30 62.3 248.3 1.9 53.2 10 R 1 6006 08 00 03 J1453+2648 16 50 30 63.0 253.1 1.9 57.1 -40 2 2 6006 08 00 03 08 00 53 =1451+270 16 51 20 62.9 253.3 2.0 57.2 10 R 1 5340 08 00 53 UGC09618 16 51 20 62.2 248.5 1.9 53.3 -40 2 2 5340 08 00 53 08 01 43 --- 16 52 10 62.0 248.8 1.9 53.4 10 R 1 4673 08 01 43 J1453+2648 16 52 10 62.7 253.5 2.0 57.3 -39 2 2 4673 08 01 43 08 02 33 =1451+270 16 53 00 62.6 253.8 2.0 57.4 11 R 1 4006 08 02 33 UGC09618 16 53 00 61.9 249.0 1.9 53.6 -39 2 2 4006 08 02 33 08 03 23 --- 16 53 50 61.7 249.3 1.9 53.7 11 R 1 3340 08 03 23 J1453+2648 16 53 50 62.4 254.0 2.0 57.5 -39 2 2 3340 08 03 23 08 04 13 =1451+270 16 54 41 62.2 254.2 2.0 57.6 11 R 1 2673 08 04 13 UGC09618 16 54 41 61.6 249.5 2.0 53.8 -39 2 2 2673 08 04 13 08 05 03 --- 16 55 31 61.4 249.7 2.0 53.9 11 R 1 2006 08 05 03 J1453+2648 16 55 31 62.1 254.4 2.0 57.7 -39 2 2 2006 08 05 03 08 05 53 =1451+270 16 56 21 61.9 254.6 2.0 57.8 11 R 1 1340 08 05 53 UGC09618 16 56 21 61.3 250.0 2.0 54.0 -39 2 2 1340 08 05 53 08 06 43 --- 16 57 11 61.1 250.2 2.0 54.1 11 R 1 673 Schedule for GBT_VLBA (Code Gb ) Page 33 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 08 06 43 J1453+2648 16 57 11 61.8 254.8 2.1 57.9 -39 2 2 673 08 06 43 08 07 33 =1451+270 16 58 01 61.6 255.0 2.1 58.0 11 R 1 6 08 07 33 UGC09618 16 58 01 61.0 250.4 2.0 54.3 -39 2 3 6 08 07 33 08 08 23 --- 16 58 51 60.8 250.7 2.0 54.4 11 F 1 673 08 08 23 J1453+2648 16 58 51 61.5 255.2 2.1 58.1 -39 2 3 673 08 08 23 08 09 13 =1451+270 16 59 41 61.3 255.4 2.1 58.1 11 F 1 1340 08 09 13 UGC09618 16 59 41 60.7 250.9 2.0 54.5 -39 2 3 1340 08 09 13 08 10 03 --- 17 00 32 60.5 251.1 2.1 54.6 11 F 1 2006 08 10 03 J1453+2648 17 00 32 61.1 255.6 2.1 58.2 -39 2 3 2006 08 10 03 08 10 53 =1451+270 17 01 22 61.0 255.9 2.1 58.3 11 F 1 2673 08 10 53 UGC09618 17 01 22 60.4 251.3 2.1 54.7 -39 2 3 2673 08 10 53 08 11 43 --- 17 02 12 60.2 251.6 2.1 54.8 11 F 1 3340 08 11 43 J1453+2648 17 02 12 60.8 256.1 2.1 58.4 -39 2 3 3340 08 11 43 08 12 33 =1451+270 17 03 02 60.7 256.3 2.1 58.5 11 F 1 4006 08 12 33 UGC09618 17 03 02 60.0 251.8 2.1 54.9 -39 2 3 4006 08 12 33 08 13 23 --- 17 03 52 59.9 252.0 2.1 55.0 11 F 1 4673 08 13 23 J1453+2648 17 03 52 60.5 256.5 2.2 58.5 -39 2 3 4673 08 13 23 08 14 13 =1451+270 17 04 42 60.3 256.6 2.2 58.6 11 F 1 5340 08 14 13 UGC09618 17 04 42 59.7 252.2 2.1 55.1 -39 2 3 5340 08 14 13 08 15 03 --- 17 05 32 59.6 252.4 2.1 55.2 11 F 1 6006 08 15 03 J1453+2648 17 05 32 60.2 256.8 2.2 58.7 -39 2 3 6006 08 15 03 08 15 53 =1451+270 17 06 23 60.0 257.0 2.2 58.8 11 F 1 6673 08 15 53 UGC09618 17 06 23 59.4 252.6 2.2 55.3 -39 2 3 6673 08 15 53 08 16 43 --- 17 07 13 59.3 252.8 2.2 55.4 11 F 1 7340 08 16 43 J1453+2648 17 07 13 59.9 257.2 2.2 58.8 -39 2 3 7340 08 16 43 08 17 33 =1451+270 17 08 03 59.7 257.4 2.2 58.9 11 F 1 8006 08 17 33 UGC09618 17 08 03 59.1 253.1 2.2 55.5 -39 2 3 8006 08 17 33 08 18 23 --- 17 08 53 58.9 253.3 2.2 55.6 11 F 1 8673 Schedule for GBT_VLBA (Code Gb ) Page 34 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 08 18 23 J1453+2648 17 08 53 59.5 257.6 2.2 59.0 -39 2 3 8673 08 18 23 08 19 13 =1451+270 17 09 43 59.4 257.8 2.3 59.1 11 F 1 9340 08 19 13 UGC09618 17 09 43 58.8 253.5 2.2 55.7 -39 2 3 9340 08 19 13 08 20 03 --- 17 10 33 58.6 253.7 2.2 55.8 11 F 1 10006 08 20 03 J1453+2648 17 10 34 59.2 258.0 2.3 59.1 -38 2 3 10006 08 20 03 08 20 53 =1451+270 17 11 24 59.1 258.2 2.3 59.2 12 F 1 10678 08 20 53 UGC09618 17 11 24 58.5 253.9 2.2 55.9 -39 2 3 10678 08 20 53 08 21 43 --- 17 12 14 58.3 254.1 2.2 55.9 11 F 1 11345 08 21 43 J1453+2648 17 12 14 58.9 258.4 2.3 59.3 -38 2 3 11345 08 21 43 08 22 33 =1451+270 17 13 04 58.7 258.5 2.3 59.3 12 F 1 12012 08 22 33 UGC09618 17 13 04 58.2 254.3 2.3 56.0 -38 2 3 12012 08 22 33 08 23 23 --- 17 13 54 58.0 254.5 2.3 56.1 12 F 1 12678 08 23 23 J1453+2648 17 13 54 58.6 258.7 2.3 59.4 -38 2 3 12678 08 23 23 08 24 13 =1451+270 17 14 44 58.4 258.9 2.3 59.4 12 F 1 13345 08 24 13 UGC09618 17 14 44 57.8 254.7 2.3 56.2 -38 2 3 13345 08 24 13 08 25 03 --- 17 15 34 57.7 254.9 2.3 56.3 12 F 1 14012 08 25 03 J1453+2648 17 15 34 58.3 259.1 2.4 59.5 -38 2 3 14012 08 25 03 08 25 53 =1451+270 17 16 25 58.1 259.3 2.4 59.6 12 F 1 14678 08 25 53 UGC09618 17 16 25 57.5 255.1 2.3 56.4 -38 2 3 14678 08 25 53 08 26 43 --- 17 17 15 57.4 255.3 2.3 56.4 12 F 1 15345 08 26 43 J1453+2648 17 17 15 57.9 259.4 2.4 59.6 -38 2 3 15345 08 26 43 08 27 33 =1451+270 17 18 05 57.8 259.6 2.4 59.7 12 F 1 16012 08 27 33 UGC09618 17 18 05 57.2 255.5 2.3 56.5 -38 2 3 16012 08 27 33 08 28 23 --- 17 18 55 57.1 255.7 2.4 56.6 12 F 1 16678 08 28 23 J1453+2648 17 18 55 57.6 259.8 2.4 59.7 -38 2 3 16678 08 28 23 08 29 13 =1451+270 17 19 45 57.5 260.0 2.4 59.8 12 F 1 17345 08 29 13 UGC09618 17 19 45 56.9 255.9 2.4 56.7 -38 2 4 17345 08 29 13 08 30 03 --- 17 20 35 56.7 256.0 2.4 56.7 12 R 1 16678 Schedule for GBT_VLBA (Code Gb ) Page 35 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 08 30 03 J1453+2648 17 20 35 57.3 260.2 2.4 59.8 -38 2 4 16678 08 30 03 08 30 53 =1451+270 17 21 25 57.1 260.3 2.5 59.9 12 R 1 16012 08 30 53 UGC09618 17 21 25 56.6 256.2 2.4 56.8 -38 2 4 16012 08 30 53 08 31 43 --- 17 22 16 56.4 256.4 2.4 56.9 12 R 1 15345 08 31 43 J1453+2648 17 22 16 57.0 260.5 2.5 59.9 -38 2 4 15345 08 31 43 08 32 33 =1451+270 17 23 06 56.8 260.7 2.5 60.0 12 R 1 14678 08 32 33 UGC09618 17 23 06 56.3 256.6 2.4 56.9 -38 2 4 14678 08 32 33 08 33 23 --- 17 23 56 56.1 256.8 2.4 57.0 12 R 1 14012 08 33 23 J1453+2648 17 23 56 56.6 260.8 2.5 60.0 -38 2 4 14012 08 33 23 08 34 13 =1451+270 17 24 46 56.5 261.0 2.5 60.1 12 R 1 13345 08 34 13 UGC09618 17 24 46 55.9 257.0 2.5 57.1 -38 2 4 13345 08 34 13 08 35 03 --- 17 25 36 55.8 257.2 2.5 57.1 12 R 1 12678 08 35 03 J1453+2648 17 25 36 56.3 261.2 2.5 60.1 -38 2 4 12678 08 35 03 08 35 53 =1451+270 17 26 26 56.2 261.3 2.5 60.2 12 R 1 12012 08 35 53 UGC09618 17 26 26 55.6 257.4 2.5 57.2 -38 2 4 12012 08 35 53 08 36 43 --- 17 27 16 55.5 257.5 2.5 57.3 12 R 1 11345 08 36 43 J1453+2648 17 27 16 56.0 261.5 2.6 60.2 -38 2 4 11345 08 36 43 08 37 33 =1451+270 17 28 06 55.8 261.7 2.6 60.3 12 R 1 10678 08 37 33 UGC09618 17 28 06 55.3 257.7 2.5 57.3 -38 2 4 10678 08 37 33 08 38 23 --- 17 28 57 55.1 257.9 2.5 57.4 12 R 1 10012 08 38 23 J1453+2648 17 28 57 55.7 261.8 2.6 60.3 -38 2 4 10012 08 38 23 08 39 13 =1451+270 17 29 47 55.5 262.0 2.6 60.3 12 R 1 9345 08 39 13 UGC09618 17 29 47 55.0 258.1 2.5 57.4 -38 2 4 9345 08 39 13 08 40 03 --- 17 30 37 54.8 258.2 2.6 57.5 12 R 1 8678 08 40 03 J1453+2648 17 30 37 55.4 262.2 2.6 60.4 -38 2 4 8678 08 40 03 08 40 53 =1451+270 17 31 27 55.2 262.3 2.6 60.4 12 R 1 8012 08 40 53 UGC09618 17 31 27 54.7 258.4 2.6 57.6 -38 2 4 8012 08 40 53 08 41 43 --- 17 32 17 54.5 258.6 2.6 57.6 12 R 1 7345 Schedule for GBT_VLBA (Code Gb ) Page 36 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 08 41 43 J1453+2648 17 32 17 55.0 262.5 2.6 60.5 -38 2 4 7345 08 41 43 08 42 33 =1451+270 17 33 07 54.9 262.6 2.6 60.5 12 R 1 6678 08 42 33 UGC09618 17 33 07 54.3 258.8 2.6 57.7 -38 2 4 6678 08 42 33 08 43 23 --- 17 33 57 54.2 258.9 2.6 57.7 12 R 1 6012 08 43 23 J1453+2648 17 33 57 54.7 262.8 2.7 60.5 -38 2 4 6012 08 43 23 08 44 13 =1451+270 17 34 48 54.5 263.0 2.7 60.6 12 R 1 5345 08 44 13 UGC09618 17 34 48 54.0 259.1 2.6 57.8 -38 2 4 5345 08 44 13 08 45 03 --- 17 35 38 53.9 259.3 2.6 57.8 12 R 1 4678 08 45 03 J1453+2648 17 35 38 54.4 263.1 2.7 60.6 -37 2 4 4678 08 45 03 08 45 53 =1451+270 17 36 28 54.2 263.3 2.7 60.6 13 R 1 4012 08 45 53 UGC09618 17 36 28 53.7 259.5 2.7 57.9 -37 2 4 4012 08 45 53 08 46 43 --- 17 37 18 53.5 259.6 2.7 57.9 13 R 1 3345 08 46 43 J1453+2648 17 37 18 54.1 263.4 2.7 60.7 -37 2 4 3345 08 46 43 08 47 33 =1451+270 17 38 08 53.9 263.6 2.7 60.7 13 R 1 2679 08 47 33 UGC09618 17 38 08 53.4 259.8 2.7 58.0 -37 2 4 2679 08 47 33 08 48 23 --- 17 38 58 53.2 260.0 2.7 58.0 13 R 1 2012 08 48 23 J1453+2648 17 38 58 53.7 263.7 2.7 60.7 -37 2 4 2012 08 48 23 08 49 13 =1451+270 17 39 48 53.6 263.9 2.8 60.8 13 R 1 1345 08 49 13 UGC09618 17 39 48 53.1 260.1 2.7 58.1 -37 2 4 1345 08 49 13 08 50 03 --- 17 40 39 52.9 260.3 2.7 58.1 13 R 1 679 08 50 03 J1453+2648 17 40 39 53.4 264.1 2.8 60.8 -37 2 4 679 08 50 03 08 50 53 =1451+270 17 41 29 53.2 264.2 2.8 60.8 13 R 1 12 08 50 53 UGC09618 17 41 29 52.7 260.5 2.7 58.2 -37 2 5 12 08 50 53 08 51 43 --- 17 42 19 52.6 260.6 2.8 58.2 13 F 1 679 08 51 43 J1453+2648 17 42 19 53.1 264.4 2.8 60.8 -37 2 5 679 08 51 43 08 52 33 =1451+270 17 43 09 52.9 264.5 2.8 60.9 13 F 1 1345 08 52 33 UGC09618 17 43 09 52.4 260.8 2.8 58.3 -37 2 5 1345 08 52 33 08 53 23 --- 17 43 59 52.2 261.0 2.8 58.3 13 F 1 2012 Schedule for GBT_VLBA (Code Gb ) Page 37 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 08 53 23 J1453+2648 17 43 59 52.8 264.7 2.8 60.9 -37 2 5 2012 08 53 23 08 54 13 =1451+270 17 44 49 52.6 264.8 2.8 60.9 13 F 1 2679 08 54 13 UGC09618 17 44 49 52.1 261.1 2.8 58.3 -37 2 5 2679 08 54 13 08 55 03 --- 17 45 39 51.9 261.3 2.8 58.4 13 F 1 3345 08 55 03 J1453+2648 17 45 39 52.4 265.0 2.9 60.9 -37 2 5 3345 08 55 03 08 55 53 =1451+270 17 46 30 52.3 265.1 2.9 61.0 13 F 1 4012 08 55 53 UGC09618 17 46 30 51.8 261.5 2.8 58.4 -37 2 5 4012 08 55 53 08 56 43 --- 17 47 20 51.6 261.6 2.8 58.5 13 F 1 4678 08 56 43 J1453+2648 17 47 20 52.1 265.2 2.9 61.0 -37 2 5 4678 08 56 43 08 57 33 =1451+270 17 48 10 51.9 265.4 2.9 61.0 13 F 1 5345 09 01 58 1641+399 17 52 35 76.5 281.2 1.2 90.2 157 2 5 5345 09 01 58 09 05 58 --- 17 56 36 75.7 281.2 1.2 89.6 240 F 1 8545 09 08 16 1502+106 17 58 54 42.2 246.1 2.9 46.7 0 2 5 8545 Stopped 09 15 16 --- 18 05 55 40.9 247.6 3.0 47.5 420 S 1 8545 09 16 23 J1453+2648 18 07 02 48.2 268.6 3.2 61.3 0 2 5 8545 09 16 23 09 16 38 =1451+270 18 07 18 48.2 268.6 3.2 61.3 15 F 1 8745 09 16 38 UGC09618 18 07 18 47.7 265.2 3.2 59.2 -36 2 5 8745 09 16 38 09 17 28 --- 18 08 08 47.6 265.4 3.2 59.2 14 F 1 9412 09 17 28 J1453+2648 18 08 08 48.0 268.7 3.2 61.3 -36 2 5 9412 09 17 28 09 18 18 =1451+270 18 08 58 47.9 268.9 3.2 61.3 14 F 1 10078 09 18 18 UGC09618 18 08 58 47.4 265.5 3.2 59.2 -36 2 5 10078 09 18 18 09 19 08 --- 18 09 48 47.2 265.7 3.2 59.2 14 F 1 10745 09 19 08 J1453+2648 18 09 48 47.7 269.0 3.3 61.3 -36 2 5 10745 09 19 08 09 19 58 =1451+270 18 10 38 47.5 269.1 3.3 61.3 14 F 1 11412 09 19 58 UGC09618 18 10 38 47.1 265.8 3.2 59.2 -36 2 5 11412 09 19 58 09 20 48 --- 18 11 28 46.9 266.0 3.2 59.2 14 F 1 12078 09 20 48 J1453+2648 18 11 28 47.4 269.3 3.3 61.3 -36 2 5 12078 09 20 48 09 21 38 =1451+270 18 12 18 47.2 269.4 3.3 61.3 14 F 1 12745 Schedule for GBT_VLBA (Code Gb ) Page 38 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 09 21 38 UGC09618 18 12 18 46.7 266.1 3.3 59.3 -36 2 5 12745 09 21 38 09 22 28 --- 18 13 08 46.6 266.2 3.3 59.3 14 F 1 13412 09 22 28 J1453+2648 18 13 08 47.1 269.5 3.3 61.3 -36 2 5 13412 09 22 28 09 23 18 =1451+270 18 13 59 46.9 269.7 3.3 61.3 14 F 1 14078 09 23 18 UGC09618 18 13 59 46.4 266.4 3.3 59.3 -36 2 5 14078 09 23 18 09 24 08 --- 18 14 49 46.2 266.5 3.3 59.3 14 F 1 14745 09 24 08 J1453+2648 18 14 49 46.7 269.8 3.3 61.3 -36 2 5 14745 09 24 08 09 24 58 =1451+270 18 15 39 46.6 269.9 3.4 61.3 14 F 1 15412 09 24 58 UGC09618 18 15 39 46.1 266.7 3.3 59.3 -36 2 5 15412 09 24 58 09 25 48 --- 18 16 29 45.9 266.8 3.3 59.3 14 F 1 16078 09 25 48 J1453+2648 18 16 29 46.4 270.1 3.4 61.3 -36 2 5 16078 09 25 48 09 26 38 =1451+270 18 17 19 46.2 270.2 3.4 61.3 14 F 1 16745 09 26 38 UGC09618 18 17 19 45.8 266.9 3.3 59.3 -36 2 5 16745 09 26 38 09 27 28 --- 18 18 09 45.6 267.1 3.3 59.4 14 F 1 17412 09 27 28 J1453+2648 18 18 10 46.1 270.3 3.4 61.3 -36 2 6 17412 09 27 28 09 28 18 =1451+270 18 19 00 45.9 270.4 3.4 61.3 14 R 1 16738 09 28 18 UGC09618 18 19 00 45.4 267.2 3.4 59.4 -36 2 6 16738 09 28 18 09 29 08 --- 18 19 50 45.3 267.4 3.4 59.4 14 R 1 16071 09 29 08 J1453+2648 18 19 50 45.7 270.6 3.4 61.3 -36 2 6 16071 09 29 08 09 29 58 =1451+270 18 20 40 45.6 270.7 3.4 61.3 14 R 1 15405 09 29 58 UGC09618 18 20 40 45.1 267.5 3.4 59.4 -36 2 6 15405 09 29 58 09 30 48 --- 18 21 30 44.9 267.6 3.4 59.4 14 R 1 14738 09 30 48 J1453+2648 18 21 30 45.4 270.8 3.5 61.3 -36 2 6 14738 09 30 48 09 31 38 =1451+270 18 22 21 45.2 271.0 3.5 61.3 14 R 1 14071 09 31 38 UGC09618 18 22 21 44.8 267.8 3.4 59.4 -36 2 6 14071 09 31 38 09 32 28 --- 18 23 11 44.6 267.9 3.4 59.4 14 R 1 13405 09 32 28 J1453+2648 18 23 11 45.1 271.1 3.5 61.3 -36 2 6 13405 09 32 28 09 33 18 =1451+270 18 24 01 44.9 271.2 3.5 61.3 14 R 1 12738 Schedule for GBT_VLBA (Code Gb ) Page 39 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 09 33 18 UGC09618 18 24 01 44.4 268.0 3.4 59.4 -36 2 6 12738 09 33 18 09 34 08 --- 18 24 51 44.3 268.2 3.5 59.4 14 R 1 12072 09 34 08 J1453+2648 18 24 51 44.8 271.3 3.5 61.3 -36 2 6 12072 09 34 08 09 34 58 =1451+270 18 25 41 44.6 271.5 3.5 61.3 14 R 1 11405 09 34 58 UGC09618 18 25 41 44.1 268.3 3.5 59.4 -36 2 6 11405 09 34 58 09 35 48 --- 18 26 31 44.0 268.4 3.5 59.4 14 R 1 10738 09 35 48 J1453+2648 18 26 31 44.4 271.6 3.5 61.3 -36 2 6 10738 09 35 48 09 36 38 =1451+270 18 27 21 44.3 271.7 3.6 61.3 14 R 1 10072 09 36 38 UGC09618 18 27 21 43.8 268.6 3.5 59.5 -36 2 6 10072 09 36 38 09 37 28 --- 18 28 11 43.6 268.7 3.5 59.5 14 R 1 9405 09 37 28 J1453+2648 18 28 11 44.1 271.8 3.6 61.3 -36 2 6 9405 09 37 28 09 38 18 =1451+270 18 29 02 43.9 272.0 3.6 61.3 14 R 1 8738 09 38 18 UGC09618 18 29 02 43.5 268.8 3.5 59.5 -36 2 6 8738 09 38 18 09 39 08 --- 18 29 52 43.3 269.0 3.5 59.5 14 R 1 8072 09 39 08 J1453+2648 18 29 52 43.8 272.1 3.6 61.3 -36 2 6 8072 09 39 08 09 39 58 =1451+270 18 30 42 43.6 272.2 3.6 61.3 14 R 1 7405 09 39 58 UGC09618 18 30 42 43.1 269.1 3.6 59.5 -36 2 6 7405 09 39 58 09 40 48 --- 18 31 32 43.0 269.2 3.6 59.5 14 R 1 6738 09 40 48 J1453+2648 18 31 32 43.4 272.3 3.6 61.3 -36 2 6 6738 09 40 48 09 41 38 =1451+270 18 32 22 43.3 272.5 3.6 61.2 14 R 1 6072 09 41 38 UGC09618 18 32 22 42.8 269.4 3.6 59.5 -36 2 6 6072 09 41 38 09 42 28 --- 18 33 12 42.6 269.5 3.6 59.5 14 R 1 5405 09 42 28 J1453+2648 18 33 12 43.1 272.6 3.7 61.2 -36 2 6 5405 09 42 28 09 43 18 =1451+270 18 34 02 43.0 272.7 3.7 61.2 14 R 1 4738 09 43 18 UGC09618 18 34 02 42.5 269.6 3.6 59.5 -36 2 6 4738 09 43 18 09 44 08 --- 18 34 53 42.3 269.8 3.6 59.5 14 R 1 4072 09 44 08 J1453+2648 18 34 53 42.8 272.8 3.7 61.2 -36 2 6 4072 09 44 08 09 44 58 =1451+270 18 35 43 42.6 272.9 3.7 61.2 14 R 1 3405 Schedule for GBT_VLBA (Code Gb ) Page 40 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 09 44 58 UGC09618 18 35 43 42.2 269.9 3.6 59.5 -36 2 6 3405 09 44 58 09 45 48 --- 18 36 33 42.0 270.0 3.7 59.5 14 R 1 2738 09 45 48 J1453+2648 18 36 33 42.5 273.1 3.7 61.2 -36 2 6 2738 09 45 48 09 46 38 =1451+270 18 37 23 42.3 273.2 3.7 61.2 14 R 1 2072 09 46 38 UGC09618 18 37 23 41.8 270.2 3.7 59.5 -36 2 6 2072 09 46 38 09 47 28 --- 18 38 13 41.7 270.3 3.7 59.5 14 R 1 1405 09 47 28 J1453+2648 18 38 13 42.1 273.3 3.7 61.2 -36 2 6 1405 09 47 28 09 48 18 =1451+270 18 39 03 42.0 273.4 3.7 61.2 14 R 1 738 09 48 18 UGC09618 18 39 03 41.5 270.4 3.7 59.5 -36 2 6 738 09 48 18 09 49 08 --- 18 39 53 41.3 270.5 3.7 59.5 14 R 1 72 09 49 08 J1453+2648 18 39 53 41.8 273.6 3.8 61.1 -36 2 7 72 09 49 08 09 49 58 =1451+270 18 40 44 41.7 273.7 3.8 61.1 14 F 1 738 09 49 58 UGC09618 18 40 44 41.2 270.7 3.7 59.5 -35 2 7 738 09 49 58 09 50 48 --- 18 41 34 41.0 270.8 3.7 59.5 15 F 1 1405 09 50 48 J1453+2648 18 41 34 41.5 273.8 3.8 61.1 -35 2 7 1405 09 50 48 09 51 38 =1451+270 18 42 24 41.3 273.9 3.8 61.1 15 F 1 2072 09 51 38 UGC09618 18 42 24 40.8 270.9 3.8 59.5 -35 2 7 2072 09 51 38 09 52 28 --- 18 43 14 40.7 271.1 3.8 59.5 15 F 1 2738 09 52 28 J1453+2648 18 43 14 41.2 274.0 3.8 61.1 -35 2 7 2738 09 52 28 09 53 18 =1451+270 18 44 04 41.0 274.2 3.8 61.1 15 F 1 3405 09 53 18 UGC09618 18 44 04 40.5 271.2 3.8 59.5 -35 2 7 3405 09 53 18 09 54 08 --- 18 44 54 40.4 271.3 3.8 59.5 15 F 1 4072 09 54 08 J1453+2648 18 44 54 40.8 274.3 3.8 61.0 -35 2 7 4072 09 54 08 09 54 58 =1451+270 18 45 44 40.7 274.4 3.9 61.0 15 F 1 4738 09 54 58 UGC09618 18 45 44 40.2 271.4 3.8 59.5 -35 2 7 4738 09 54 58 09 55 43 --- 18 46 29 40.0 271.5 3.8 59.4 10 F 1 5338 09 55 43 J1453+2648 18 46 29 40.5 274.5 3.9 61.0 -35 2 7 5338 09 55 43 09 56 28 =1451+270 18 47 15 40.4 274.6 3.9 61.0 10 F 1 5938 Schedule for GBT_VLBA (Code Gb ) Page 41 Follow-up Imaging of Three NGC4258-like Water Megamasers UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. TPStart: Tape motion start time. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 24 Apr 2005 Day 114 --- 09 56 28 UGC09618 18 47 15 39.9 271.7 3.8 59.4 -35 2 7 5938 09 56 28 09 57 13 --- 18 48 00 39.8 271.8 3.8 59.4 10 F 1 6538 09 57 13 J1453+2648 18 48 00 40.2 274.7 3.9 61.0 -35 2 7 6538 09 57 13 09 57 58 =1451+270 18 48 45 40.1 274.8 3.9 61.0 10 F 1 7138 09 57 58 UGC09618 18 48 45 39.6 271.9 3.9 59.4 -35 2 7 7138 09 57 58 09 58 43 --- 18 49 30 39.5 272.0 3.9 59.4 10 F 1 7738 09 58 43 J1453+2648 18 49 30 39.9 274.9 3.9 61.0 -35 2 7 7738 09 58 43 09 59 28 =1451+270 18 50 15 39.8 275.0 3.9 60.9 10 F 1 8338 09 59 28 UGC09618 18 50 15 39.3 272.1 3.9 59.4 -35 2 7 8338 09 59 28 10 00 13 --- 18 51 00 39.2 272.2 3.9 59.4 10 F 1 8938 10 00 13 J1453+2648 18 51 00 39.6 275.1 3.9 60.9 -35 2 7 8938 10 00 13 10 00 58 =1451+270 18 51 45 39.5 275.2 4.0 60.9 10 F 1 9538 10 00 58 UGC09618 18 51 45 39.0 272.3 3.9 59.4 -35 2 7 9538 10 00 58 10 01 43 --- 18 52 30 38.9 272.5 3.9 59.4 10 F 1 10138 10 01 43 J1453+2648 18 52 30 39.4 275.4 4.0 60.9 -35 2 7 10138 10 01 43 10 02 28 =1451+270 18 53 16 39.2 275.5 4.0 60.9 10 F 1 10738 10 02 28 UGC09618 18 53 16 38.7 272.6 3.9 59.4