COVER INFORMATION Station: VLA27 (Code Y ) Experiment: Water Megamaser in the LINER IC1481, Nakai etc Exp. Code: BN032 Schedule Version: 1.00 Processed by SCHED version: 6.01 Release: Late March 2005 PI: NAKAI N. Address: Institute of Physics, University of Tsukuba Tsukuba, Ibaraki 305-8571 Japan Phone: 81 29 853 4281 EMAIL: nakai@physics.px.tsukuba.ac.jp Fax: 81 29 853 6618 Phone during observation: 81 29 853 4281 Observing mode: 1.3cm, line Notes: fringe finder, manual pcal: 3c454.3 phase reference source : 2320+052, 2334++076 amplitude check source : 3c286 Schedule for VLA27 (Code Y ) Page 2 Water Megamaser in the LINER IC1481, Nakai etc 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) ---------------------------------------------------------------------------------------- --- Sat 23 Apr 2005 Day 113 --- Next scan frequencies: 21779.62 21791.48 21799.64 21807.06 Next BBC frequencies: 619.52 631.38 639.54 646.96 Next scan bandwidths: 8.00 8.00 8.00 8.00 10 55 00 3C454.3 17 50 52 20.5 83.9 -5.1 -59.0 0 1 1 0 Stopped 11 05 00 --- 18 00 54 22.6 85.3 -4.9 -59.3 600 S 1 0 11 05 00 3C286 18 00 54 34.0 -73.6 4.5 67.2 -253 1 1 0 11 05 00 11 15 00 --- 18 10 56 32.0 -72.6 4.7 66.5 347 F 1 4000 11 19 00 3C454.3 18 14 56 25.5 87.1 -4.7 -59.5 -15 1 1 4000 11 19 00 11 29 00 --- 18 24 58 27.6 88.5 -4.5 -59.6 585 F 1 8000 11 30 00 2334+076 18 25 58 14.9 90.8 -5.1 -56.7 7 1 1 8000 11 30 00 11 33 00 --- 18 28 59 15.5 91.2 -5.1 -56.7 180 F 1 9200 11 33 00 IC1481 18 28 59 17.7 94.8 -4.8 -56.1 -21 1 1 9200 11 33 00 11 41 00 --- 18 37 00 19.3 96.0 -4.7 -55.9 459 F 1 12400 11 41 00 2320+052 18 37 00 18.7 96.4 -4.7 -55.7 -17 1 1 12400 11 41 00 11 44 00 --- 18 40 00 19.3 96.9 -4.7 -55.7 163 F 1 13600 11 44 00 IC1481 18 40 00 19.9 96.5 -4.7 -55.8 -17 1 1 13600 11 44 00 11 52 00 --- 18 48 02 21.6 97.7 -4.5 -55.6 463 F 1 16800 11 52 00 2320+052 18 48 02 20.9 98.1 -4.5 -55.4 -17 1 2 16800 11 52 00 11 55 00 --- 18 51 02 21.5 98.5 -4.5 -55.3 163 R 1 17200 11 55 00 IC1481 18 51 02 22.2 98.1 -4.5 -55.5 -17 1 2 17200 11 55 00 12 03 00 --- 18 59 03 23.8 99.3 -4.3 -55.3 463 R 1 14000 12 03 00 2320+052 18 59 03 23.2 99.7 -4.4 -55.1 -17 1 2 14000 12 03 00 12 06 00 --- 19 02 04 23.8 100.2 -4.3 -54.9 163 R 1 12800 12 06 00 IC1481 19 02 04 24.4 99.8 -4.3 -55.1 -17 1 2 12800 12 06 00 12 14 00 --- 19 10 05 26.1 101.1 -4.2 -54.8 463 R 1 9600 12 14 00 2320+052 19 10 05 25.4 101.5 -4.2 -54.6 -17 1 2 9600 12 14 00 12 17 00 --- 19 13 06 26.0 102.0 -4.1 -54.5 163 R 1 8400 12 17 00 IC1481 19 13 06 26.7 101.6 -4.1 -54.7 -17 1 2 8400 12 17 00 12 25 00 --- 19 21 07 28.3 102.9 -4.0 -54.3 463 R 1 5200 Schedule for VLA27 (Code Y ) Page 3 Water Megamaser in the LINER IC1481, Nakai etc 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) ---------------------------------------------------------------------------------------- --- Sat 23 Apr 2005 Day 113 --- 12 25 00 2320+052 19 21 07 27.7 103.3 -4.0 -54.1 -17 1 2 5200 12 25 00 12 28 00 --- 19 24 08 28.3 103.8 -3.9 -53.9 163 R 1 4000 12 28 00 IC1481 19 24 08 28.9 103.4 -3.9 -54.1 -17 1 2 4000 12 28 00 12 36 00 --- 19 32 09 30.5 104.7 -3.8 -53.6 463 R 1 800 12 36 00 2334+076 19 32 09 28.5 100.7 -4.0 -55.2 -21 1 2 800 12 36 00 12 38 00 --- 19 34 09 28.9 101.0 -4.0 -55.1 99 R 1 0 12 38 00 IC1481 19 34 09 30.9 105.1 -3.8 -53.5 -21 1 3 0 12 38 00 12 44 00 --- 19 40 10 32.1 106.1 -3.7 -53.1 339 F 1 2400 12 44 00 2320+052 19 40 10 31.5 106.5 -3.7 -52.9 -17 1 3 2400 12 44 00 12 46 00 --- 19 42 11 31.9 106.9 -3.6 -52.7 103 F 1 3200 12 46 00 IC1481 19 42 11 32.5 106.5 -3.6 -53.0 -17 1 3 3200 12 46 00 12 51 00 --- 19 47 11 33.5 107.4 -3.5 -52.6 283 F 1 5200 12 51 00 3C454.3 19 47 11 44.5 101.2 -3.1 -57.8 -48 1 3 5200 12 51 00 13 02 00 --- 19 58 13 46.7 103.2 -2.9 -57.1 612 F 1 9600 13 03 00 2334+076 19 59 13 34.0 105.2 -3.6 -53.7 7 1 3 9600 13 03 00 13 06 00 --- 20 02 14 34.6 105.8 -3.5 -53.5 180 F 1 10800 13 06 00 IC1481 20 02 14 36.5 110.2 -3.3 -51.4 -22 1 3 10800 13 06 00 13 14 00 --- 20 10 15 38.0 111.8 -3.2 -50.7 458 F 1 14000 13 14 00 2320+052 20 10 15 37.3 112.2 -3.2 -50.4 -17 1 3 14000 13 14 00 13 17 00 --- 20 13 16 37.9 112.8 -3.1 -50.1 163 F 1 15200 13 17 00 IC1481 20 13 16 38.6 112.4 -3.1 -50.4 -17 1 4 15200 13 17 00 13 25 00 --- 20 21 17 40.1 114.0 -3.0 -49.5 463 R 1 16800 13 25 00 2320+052 20 21 17 39.4 114.4 -3.0 -49.2 -17 1 4 16800 13 25 00 13 28 00 --- 20 24 17 40.0 115.0 -2.9 -48.9 163 R 1 15600 13 28 00 IC1481 20 24 17 40.7 114.7 -2.9 -49.2 -17 1 4 15600 13 28 00 13 36 00 --- 20 32 19 42.2 116.4 -2.8 -48.2 463 R 1 12400 13 36 00 2320+052 20 32 19 41.5 116.8 -2.8 -47.9 -17 1 4 12400 13 36 00 13 39 00 --- 20 35 19 42.1 117.5 -2.8 -47.6 163 R 1 11200 Schedule for VLA27 (Code Y ) Page 4 Water Megamaser in the LINER IC1481, Nakai etc 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) ---------------------------------------------------------------------------------------- --- Sat 23 Apr 2005 Day 113 --- 13 39 00 IC1481 20 35 19 42.8 117.1 -2.7 -47.8 -17 1 4 11200 13 39 00 13 47 00 --- 20 43 21 44.2 119.0 -2.6 -46.8 463 R 1 8000 13 47 00 2320+052 20 43 21 43.5 119.3 -2.6 -46.5 -17 1 4 8000 13 47 00 13 50 00 --- 20 46 21 44.1 120.0 -2.6 -46.1 163 R 1 6800 13 50 00 IC1481 20 46 21 44.8 119.7 -2.6 -46.3 -17 1 4 6800 13 50 00 13 58 00 --- 20 54 22 46.2 121.7 -2.4 -45.1 463 R 1 3600 13 58 00 2320+052 20 54 22 45.5 122.0 -2.4 -44.8 -17 1 4 3600 13 58 00 14 01 00 --- 20 57 23 46.0 122.8 -2.4 -44.4 163 R 1 2400 14 01 00 IC1481 20 57 23 46.7 122.4 -2.4 -44.7 -17 1 5 2400 14 01 00 14 09 00 --- 21 05 24 48.1 124.6 -2.2 -43.3 463 F 1 800 14 09 00 2320+052 21 05 24 47.4 124.9 -2.3 -43.0 -17 1 5 800 14 09 00 14 12 00 --- 21 08 25 47.9 125.7 -2.2 -42.5 163 F 1 2000 14 12 00 IC1481 21 08 25 48.6 125.4 -2.2 -42.8 -17 1 5 2000 14 12 00 14 20 00 --- 21 16 26 50.0 127.7 -2.1 -41.2 463 F 1 5200 14 20 00 2320+052 21 16 26 49.2 128.0 -2.1 -41.0 -17 1 5 5200 14 20 00 14 23 00 --- 21 19 26 49.7 128.8 -2.0 -40.4 163 F 1 6400 14 23 00 IC1481 21 19 26 50.4 128.5 -2.0 -40.6 -17 1 5 6400 14 23 00 14 31 00 --- 21 27 28 51.7 131.0 -1.9 -39.0 463 F 1 9600 14 31 00 2334+076 21 27 28 50.6 124.8 -2.1 -43.3 -24 1 5 9600 14 31 00 14 33 00 --- 21 29 28 50.9 125.4 -2.1 -43.0 96 F 1 10400 14 33 00 IC1481 21 29 28 52.0 131.6 -1.8 -38.5 -24 1 5 10400 14 33 00 14 39 00 --- 21 35 29 52.9 133.5 -1.7 -37.1 336 F 1 12800 14 39 00 2320+052 21 35 29 52.2 133.8 -1.8 -36.9 -17 1 5 12800 14 39 00 14 41 00 --- 21 37 29 52.5 134.4 -1.7 -36.4 103 F 1 13600 14 41 00 IC1481 21 37 29 53.2 134.2 -1.7 -36.6 -17 1 5 13600 14 41 00 14 46 00 --- 21 42 30 54.0 135.9 -1.6 -35.4 283 F 1 15600 14 46 00 3C454.3 21 42 30 65.9 133.6 -1.2 -38.7 -51 1 6 15600 14 46 00 14 57 00 --- 21 53 32 67.5 139.0 -1.0 -34.5 609 R 1 15200 Schedule for VLA27 (Code Y ) Page 5 Water Megamaser in the LINER IC1481, Nakai etc 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) ---------------------------------------------------------------------------------------- --- Sat 23 Apr 2005 Day 113 --- 14 58 00 2334+076 21 54 32 54.9 133.2 -1.7 -37.5 7 1 6 15200 14 58 00 15 01 00 --- 21 57 33 55.4 134.3 -1.6 -36.8 180 R 1 14000 15 01 00 IC1481 21 57 33 56.0 141.4 -1.4 -31.3 -26 1 6 14000 15 01 00 15 09 00 --- 22 05 34 57.0 144.5 -1.2 -28.9 454 R 1 10800 15 09 00 2320+052 22 05 34 56.3 144.6 -1.3 -28.8 -17 1 6 10800 15 09 00 15 12 00 --- 22 08 35 56.6 145.7 -1.2 -27.9 163 R 1 9600 15 12 00 IC1481 22 08 35 57.4 145.7 -1.2 -28.0 -17 1 6 9600 15 12 00 15 20 00 --- 22 16 36 58.3 149.1 -1.1 -25.4 463 R 1 6400 15 20 00 2320+052 22 16 36 57.5 149.0 -1.1 -25.3 -17 1 6 6400 15 20 00 15 23 00 --- 22 19 36 57.9 150.3 -1.0 -24.3 163 R 1 5200 15 23 00 IC1481 22 19 36 58.6 150.4 -1.0 -24.3 -17 1 6 5200 15 23 00 15 31 00 --- 22 27 38 59.4 153.9 -0.9 -21.5 463 R 1 2000 15 31 00 2320+052 22 27 38 58.6 153.8 -0.9 -21.5 -17 1 6 2000 15 31 00 15 34 00 --- 22 30 38 58.9 155.2 -0.8 -20.5 163 R 1 800 15 34 00 IC1481 22 30 38 59.7 155.3 -0.8 -20.4 -17 1 7 800 15 34 00 15 42 00 --- 22 38 39 60.3 159.1 -0.7 -17.3 463 F 1 2400 15 42 00 2320+052 22 38 39 59.6 158.8 -0.7 -17.5 -17 1 7 2400 15 42 00 15 45 00 --- 22 41 40 59.8 160.3 -0.7 -16.3 163 F 1 3600 15 45 00 IC1481 22 41 40 60.5 160.5 -0.6 -16.1 -17 1 7 3600 15 45 00 15 53 00 --- 22 49 41 61.0 164.5 -0.5 -12.9 463 F 1 6800 15 53 00 2320+052 22 49 41 60.3 164.1 -0.5 -13.1 -17 1 7 6800 15 53 00 15 56 00 --- 22 52 42 60.4 165.6 -0.5 -11.9 163 F 1 8000 15 56 00 IC1481 22 52 42 61.2 166.0 -0.4 -11.6 -17 1 7 8000 15 56 00 16 04 00 --- 23 00 43 61.5 170.1 -0.3 -8.2 463 F 1 11200 16 04 00 2320+052 23 00 43 60.8 169.6 -0.3 -8.6 -17 1 7 11200 16 04 00 16 07 00 --- 23 03 44 60.9 171.1 -0.3 -7.4 163 F 1 12400 16 07 00 IC1481 23 03 44 61.6 171.6 -0.3 -7.0 -17 1 7 12400 16 07 00 16 15 00 --- 23 11 45 61.8 175.8 -0.1 -3.5 463 F 1 15600 Schedule for VLA27 (Code Y ) Page 6 Water Megamaser in the LINER IC1481, Nakai etc 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) ---------------------------------------------------------------------------------------- --- Sat 23 Apr 2005 Day 113 --- 16 15 00 2320+052 23 11 45 61.1 175.2 -0.2 -4.0 -17 1 7 15600 16 15 00 16 18 00 --- 23 14 45 61.1 176.8 -0.1 -2.7 163 F 1 16800 16 18 00 IC1481 23 14 45 61.8 177.4 -0.1 -2.2 -17 1 8 16800 16 18 00 16 26 00 --- 23 22 47 61.8 181.6 0.1 1.4 463 R 1 15200 16 26 00 2334+076 23 22 47 63.4 173.5 -0.2 -5.4 -27 1 8 15200 16 26 00 16 28 00 --- 23 24 47 63.5 174.6 -0.2 -4.5 93 R 1 14400 16 28 00 IC1481 23 24 47 61.8 182.7 0.1 2.2 -27 1 8 14400 16 28 00 16 34 00 --- 23 30 48 61.7 185.9 0.2 4.9 333 R 1 12000 16 34 00 2320+052 23 30 48 61.1 185.1 0.2 4.2 -17 1 8 12000 16 34 00 16 36 00 --- 23 32 48 61.0 186.1 0.2 5.1 103 R 1 11200 16 36 00 IC1481 23 32 48 61.7 186.9 0.2 5.7 -17 1 8 11200 16 36 00 16 41 00 --- 23 37 49 61.5 189.5 0.3 7.9 283 R 1 9200 16 41 00 3C454.3 23 37 49 69.6 211.4 0.7 26.7 -48 1 8 9200 16 41 00 16 52 00 --- 23 48 51 68.3 217.8 0.9 31.9 612 R 1 4800 16 53 00 2334+076 23 49 51 63.3 188.5 0.3 7.1 1 1 8 4800 16 53 00 16 56 00 --- 23 52 52 63.2 190.2 0.3 8.5 180 R 1 3600 16 56 00 IC1481 23 52 52 60.8 197.1 0.6 14.2 -25 1 8 3600 16 56 00 17 04 00 --- 00 00 53 60.3 201.0 0.7 17.4 455 R 1 400 17 04 00 2320+052 00 00 53 59.7 200.0 0.7 16.5 -17 1 9 400 17 04 00 17 07 00 --- 00 03 53 59.5 201.4 0.7 17.7 163 F 1 1600 17 07 00 IC1481 00 03 53 60.0 202.5 0.7 18.6 -17 1 9 1600 17 07 00 17 15 00 --- 00 11 55 59.4 206.2 0.9 21.6 463 F 1 4800 17 15 00 2320+052 00 11 55 58.9 205.1 0.8 20.7 -17 1 9 4800 17 15 00 17 18 00 --- 00 14 55 58.6 206.4 0.9 21.7 163 F 1 6000 17 18 00 IC1481 00 14 55 59.1 207.5 0.9 22.6 -17 1 9 6000 17 18 00 17 26 00 --- 00 22 57 58.3 211.0 1.1 25.4 463 F 1 9200 17 26 00 2320+052 00 22 57 57.8 209.9 1.0 24.5 -17 1 9 9200 17 26 00 17 29 00 --- 00 25 57 57.5 211.2 1.1 25.5 163 F 1 10400 Schedule for VLA27 (Code Y ) Page 7 Water Megamaser in the LINER IC1481, Nakai etc 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) ---------------------------------------------------------------------------------------- --- Sat 23 Apr 2005 Day 113 --- 17 29 00 IC1481 00 25 57 57.9 212.3 1.1 26.4 -17 1 9 10400 17 29 00 17 37 00 --- 00 33 58 57.0 215.6 1.2 29.0 463 F 1 13600 17 37 00 2320+052 00 33 58 56.6 214.5 1.2 28.1 -17 1 9 13600 17 37 00 17 40 00 --- 00 36 59 56.2 215.7 1.3 29.0 163 F 1 14800 17 40 00 IC1481 00 36 59 56.6 216.8 1.3 29.9 -17 1 10 14800 17 40 00 17 48 00 --- 00 45 00 55.6 219.9 1.4 32.2 463 R 1 17200 17 48 00 2320+052 00 45 00 55.2 218.7 1.4 31.4 -17 1 10 17200 17 48 00 17 51 00 --- 00 48 01 54.8 219.8 1.5 32.2 163 R 1 16000 17 51 00 IC1481 00 48 01 55.2 221.0 1.5 33.1 -17 1 10 16000 17 51 00 17 59 00 --- 00 56 02 54.1 223.8 1.6 35.2 463 R 1 12800 17 59 00 2320+052 00 56 02 53.7 222.7 1.6 34.3 -17 1 10 12800 17 59 00 18 02 00 --- 00 59 02 53.3 223.7 1.6 35.1 163 R 1 11600 18 02 00 IC1481 00 59 02 53.7 224.8 1.7 36.0 -17 1 10 11600 18 02 00 18 10 00 --- 01 07 04 52.5 227.5 1.8 37.9 463 R 1 8400 18 10 00 2320+052 01 07 04 52.1 226.4 1.8 37.0 -17 1 10 8400 18 10 00 18 13 00 --- 01 10 04 51.7 227.4 1.8 37.7 163 R 1 7200 18 13 00 IC1481 01 10 04 52.0 228.5 1.8 38.6 -17 1 10 7200 18 13 00 18 21 00 --- 01 18 06 50.7 230.9 2.0 40.3 463 R 1 4000 18 21 00 2334+076 01 18 06 54.4 228.0 1.7 38.4 -26 1 10 4000 18 21 00 18 23 00 --- 01 20 06 54.1 228.7 1.8 38.9 94 R 1 3200 18 23 00 IC1481 01 20 06 50.4 231.5 2.0 40.7 -26 1 10 3200 18 23 00 18 29 00 --- 01 26 07 49.4 233.3 2.1 41.9 334 R 1 800 18 29 00 2320+052 01 26 07 49.1 232.2 2.1 41.1 -17 1 10 800 18 29 00 18 31 00 --- 01 28 07 48.8 232.8 2.1 41.5 103 R 1 0 18 31 00 IC1481 01 28 07 49.1 233.8 2.1 42.2 -17 1 11 0 18 31 00 18 36 00 --- 01 33 08 48.2 235.2 2.2 43.2 283 F 1 2000 18 36 00 3C454.3 01 33 08 50.2 253.4 2.6 55.7 -42 1 11 2000 18 36 00 18 47 00 --- 01 44 10 48.0 255.6 2.8 56.7 618 F 1 6400 Schedule for VLA27 (Code Y ) Page 8 Water Megamaser in the LINER IC1481, Nakai etc 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) ---------------------------------------------------------------------------------------- --- Sat 23 Apr 2005 Day 113 --- 18 48 00 2334+076 01 45 10 49.9 236.3 2.2 44.0 16 1 11 6400 18 48 00 18 51 00 --- 01 48 11 49.4 237.1 2.2 44.5 180 F 1 7600 18 51 00 IC1481 01 48 11 45.6 239.1 2.5 45.6 -26 1 11 7600 18 51 00 18 59 00 --- 01 56 12 44.2 241.1 2.6 46.8 454 F 1 10800 18 59 00 2320+052 01 56 12 44.0 240.1 2.6 46.1 -16 1 11 10800 18 59 00 19 02 00 --- 01 59 12 43.4 240.8 2.6 46.6 164 F 1 12000 19 02 00 IC1481 01 59 12 43.6 241.8 2.7 47.2 -16 1 11 12000 19 02 00 19 10 00 --- 02 07 14 42.2 243.6 2.8 48.2 464 F 1 15200 19 10 00 2320+052 02 07 14 42.0 242.7 2.8 47.6 -16 1 11 15200 19 10 00 19 13 00 --- 02 10 14 41.4 243.3 2.8 48.0 164 F 1 16400 19 13 00 IC1481 02 10 14 41.6 244.3 2.8 48.6 -16 1 12 16400 19 13 00 19 21 00 --- 02 18 15 40.1 246.0 3.0 49.5 464 R 1 15600 19 21 00 2320+052 02 18 15 39.9 245.1 3.0 49.0 -16 1 12 15600 19 21 00 19 24 00 --- 02 21 16 39.3 245.7 3.0 49.3 164 R 1 14400 19 24 00 IC1481 02 21 16 39.5 246.7 3.0 49.9 -16 1 12 14400 19 24 00 19 32 00 --- 02 29 17 38.0 248.3 3.2 50.7 464 R 1 11200 19 32 00 2320+052 02 29 17 37.8 247.4 3.1 50.1 -16 1 12 11200 19 32 00 19 35 00 --- 02 32 18 37.2 248.0 3.2 50.4 164 R 1 10000 19 35 00 IC1481 02 32 18 37.4 248.9 3.2 51.0 -16 1 12 10000 19 35 00 19 43 00 --- 02 40 19 35.8 250.4 3.3 51.7 464 R 1 6800 19 43 00 2320+052 02 40 19 35.7 249.5 3.3 51.2 -16 1 12 6800 19 43 00 19 46 00 --- 02 43 20 35.1 250.1 3.4 51.5 164 R 1 5600 19 46 00 IC1481 02 43 20 35.3 251.0 3.4 51.9 -16 1 12 5600 19 46 00 19 54 00 --- 02 51 21 33.7 252.5 3.5 52.6 464 R 1 2400 19 54 00 3C454.3 02 51 21 34.2 266.9 4.0 59.4 -37 1 13 2400 19 54 00 20 05 00 --- 03 02 23 31.9 268.5 4.1 59.6 623 F 1 2000 20 06 00 2334+076 03 03 23 35.3 253.6 3.5 53.3 23 1 13 2000 20 06 00 20 09 00 --- 03 06 23 34.7 254.2 3.5 53.5 180 F 1 3200 Schedule for VLA27 (Code Y ) Page 9 Water Megamaser in the LINER IC1481, Nakai etc 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) ---------------------------------------------------------------------------------------- --- Sat 23 Apr 2005 Day 113 --- 20 09 00 IC1481 03 06 23 30.7 255.1 3.8 53.6 -27 1 13 3200 20 09 00 20 17 00 --- 03 14 25 29.1 256.5 3.9 54.1 453 F 1 6400 20 17 00 2320+052 03 14 25 29.0 255.6 3.9 53.7 -16 1 13 6400 20 17 00 20 20 00 --- 03 17 25 28.3 256.2 3.9 53.9 164 F 1 7600 20 20 00 IC1481 03 17 25 28.5 257.0 4.0 54.2 -16 1 13 7600 20 20 00 20 29 00 --- 03 26 27 26.6 258.5 4.1 54.7 524 F 1 11200 20 29 00 2320+052 03 26 27 26.5 257.6 4.1 54.3 -16 1 13 11200 20 29 00 20 32 00 --- 03 29 27 25.9 258.1 4.1 54.5 164 F 1 12400 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: bn032.set --- WARNING --- This group does not match an entry in the frequency catalog. This might be ok because the catalog is not complete. But be very careful to be sure that the setup is correct. Setup group: 13 Station: VLA27 Total bit rate: 128 Format: VLBA1:4 Bits per sample: 2 Sample rate: 16.000 Number of channels: 4 Passes/head pos: 1 Speedup factor: 2.00 Tape speeds: Low density - 133.330 ips, High density - 80.00 ips Time per pass for 17600 ft, High density tapes is: 00:44:00 1st LO= 21160.10 21160.10 21160.10 21160.10 Net SB= U U U U Pol. = LCP LCP LCP LCP BBC = 1 2 3 4 BBC SB= U U U U IF = D D D D The following frequency sets based on this setup were used. Frequency Set: 1 Based on FREQ, BW, and/or DOPPLER in schedule. Used pcal sets: 1 LO sum= 21779.62 21791.48 21799.64 21807.06 BBC fr= 619.52 631.38 639.54 646.96 Bandwd= 8.000 8.000 8.000 8.000 The following pulse cal sets were used with this setup: Pulse cal detection set: 1 PCAL = OFF PCALXB1= S1 S2 S3 S4 OFF OFF OFF OFF PCALXB2= M1 M2 M3 M4 OFF OFF OFF OFF PCALFR1= 0 0 0 0 0 0 0 0 PCALFR2= 0 0 0 0 0 0 0 0 Track assignments are: track1= 2, 18, 3, 19 barrel=roll_auto VLA specific information: (LO and FI cards will be written.) VLABAND: VK VLABW: 0000 FEFILTER: 0000 VLAFEAB: 17.30 VLAFECD: 17.30 VLAIF: SYSKIF VLASYNA: 3460.10 VLASYNB: 3460.10 VLAROT: VLBKROT FLUKEA: 100.00 FLUKEB: 200.00 FLUKESET: 0 Details for VLA IFs: LO Sum Frequency span VLBI FIRSTLO VLA IF A: 21760.1000 21760.1000-21810.1000 21160.1000 VLA IF B: 21760.1000 21760.1000-21810.1000 21160.1000 VLA IF C: 21760.1000 21760.1000-21810.1000 21160.1000 VLA IF D: 21760.1000 21760.1000-21810.1000 21160.1000 With new digital patch panel, VLA IF = VLB IF. SOURCE LIST -- Water Megamaser in the LINER IC1481, Nakai etc Catalog positions marked with *. Precession of date coordinates is based on stop time of first scan. Names used in schedule marked with *. Short names used in VLA and SNAP files marked with +. Observation date used in B1950/J2000 coordinate conversion (PRECDATE): 1979.900 No adjustments are made for rates (DRA, DDEC). Scan hours are for recording scans only. Baseline hours are only counted for scans above horizon at both ends. Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * 3C454.3 22 51 29.519701 * 22 53 57.747900 22 54 12.037528 0.00 15 52 54.34817 * 16 08 53.56100 16 10 19.44643 0.00 From catalog imbedded in main SCHED input file. Doppler based on other sources. 1.083 scan hours, 66.194 baseline hours above horizon. * 3C286 13 28 49.657607 * 13 31 08.287900 13 31 24.336088 0.00 30 45 58.64036 * 30 30 32.95900 30 28 50.43187 0.00 From catalog imbedded in main SCHED input file. Doppler based on other sources. 0.167 scan hours, 8.463 baseline hours above horizon. * 2320+052 23 18 12.130378 * 23 20 44.856600 23 20 59.632824 0.00 04 57 23.44689 * 05 13 49.95300 05 15 22.26683 0.00 From catalog imbedded in main SCHED input file. Doppler based on other sources. 1.783 scan hours, 104.898 baseline hours above horizon. * 2334+076 23 31 40.087500 * 23 34 12.828200 23 34 27.528094 0.00 07 19 52.41074 * 07 36 27.55200 07 38 00.81750 0.00 From catalog imbedded in main SCHED input file. Doppler based on other sources. 0.433 scan hours, 24.704 baseline hours above horizon. * IC1481 23 16 52.531672 * 23 19 25.079700 23 19 39.835314 0.00 05 37 56.34069 * 05 54 21.80500 05 55 53.80720 0.00 From catalog imbedded in main SCHED input file. Doppler based on LSR frame and radio definition. Velocities: 6110.00 5950.00 5840.00 5740.00 5.967 scan hours, 358.215 baseline hours above horizon. The solar corona can cause unstable phases for sources too close to the Sun. SCHED provides warnings at individual scans for distances less than 10 degrees. The distance from the Sun to each source in this schedule is: Source Sun distance (deg) 3C454.3 46.3 3C286 136.0 2320+052 41.2 2334+076 37.5 IC1481 41.4 Barry Clark estimates from predictions by Ketan Desai of IPM scattering sizes that the Sun will cause amplitude reductions on the longest VLBA baselines at a solar distance of 60deg F^(-0.6) where F is in GHz. For common VLBI bands, this is: 327 MHz 117. deg 610 MHz 81. deg 1.6 GHz 45. deg 2.3 GHz 36. deg 5.0 GHz 23. deg 8.4 GHz 17. deg 15.0 GHz 12. deg 22.0 GHz 9. deg 43.0 GHz 6. deg