COVER INFORMATION Station: VLBA_NL (Code Nl ) 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 VLBA_NL (Code Nl ) 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: 779.62 791.48 799.64 807.06 Next scan bandwidths: 8.00 8.00 8.00 8.00 11 05 00 3C286 19 05 05 24.3 -69.9 5.6 54.4 0 1 1 0 11 05 00 11 15 00 --- 19 15 06 22.6 -68.6 5.7 53.7 600 F 1 4000 11 19 00 3C454.3 19 19 07 37.5 102.4 -3.6 -49.3 120 1 1 4000 11 19 00 11 29 00 --- 19 29 09 39.3 104.4 -3.4 -48.8 600 F 1 8000 11 30 00 2334+076 19 30 09 26.5 104.2 -4.1 -46.8 28 1 1 8000 11 30 00 11 33 00 --- 19 33 09 27.0 104.8 -4.0 -46.7 180 F 1 9200 11 33 00 IC1481 19 33 09 28.5 109.1 -3.8 -45.1 -9 1 1 9200 11 33 00 11 41 00 --- 19 41 10 29.9 110.7 -3.6 -44.5 471 F 1 12400 11 41 00 2320+052 19 41 10 29.2 111.0 -3.7 -44.4 -7 1 1 12400 11 41 00 11 44 00 --- 19 44 11 29.7 111.6 -3.6 -44.1 173 F 1 13600 11 44 00 IC1481 19 44 11 30.4 111.3 -3.6 -44.3 -7 1 1 13600 11 44 00 11 52 00 --- 19 52 12 31.8 113.0 -3.5 -43.6 473 F 1 16800 11 52 00 2320+052 19 52 12 31.1 113.3 -3.5 -43.5 -7 1 2 16800 11 52 00 11 55 00 --- 19 55 13 31.6 113.9 -3.4 -43.2 173 R 1 17200 11 55 00 IC1481 19 55 13 32.3 113.6 -3.4 -43.4 -7 1 2 17200 11 55 00 12 03 00 --- 20 03 14 33.7 115.4 -3.3 -42.6 473 R 1 14000 12 03 00 2320+052 20 03 14 33.0 115.6 -3.3 -42.5 -7 1 2 14000 12 03 00 12 06 00 --- 20 06 15 33.5 116.3 -3.2 -42.2 173 R 1 12800 12 06 00 IC1481 20 06 15 34.2 116.0 -3.2 -42.4 -7 1 2 12800 12 06 00 12 14 00 --- 20 14 16 35.5 117.9 -3.1 -41.5 473 R 1 9600 12 14 00 2320+052 20 14 16 34.8 118.1 -3.1 -41.4 -7 1 2 9600 12 14 00 12 17 00 --- 20 17 16 35.3 118.8 -3.1 -41.0 173 R 1 8400 12 17 00 IC1481 20 17 16 36.0 118.5 -3.0 -41.2 -7 1 2 8400 12 17 00 12 25 00 --- 20 25 18 37.3 120.4 -2.9 -40.3 473 R 1 5200 12 25 00 2320+052 20 25 18 36.6 120.7 -2.9 -40.1 -7 1 2 5200 12 25 00 12 28 00 --- 20 28 18 37.1 121.4 -2.9 -39.8 173 R 1 4000 Schedule for VLBA_NL (Code Nl ) 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 28 00 IC1481 20 28 18 37.8 121.1 -2.9 -39.9 -7 1 2 4000 12 28 00 12 36 00 --- 20 36 20 39.1 123.1 -2.7 -38.9 473 R 1 800 12 36 00 2334+076 20 36 20 38.0 118.1 -3.0 -41.6 -9 1 2 800 12 36 00 12 38 00 --- 20 38 20 38.3 118.6 -2.9 -41.3 111 R 1 0 12 38 00 IC1481 20 38 20 39.4 123.6 -2.7 -38.6 -9 1 3 0 12 38 00 12 44 00 --- 20 44 21 40.3 125.1 -2.6 -37.8 351 F 1 2400 12 44 00 2320+052 20 44 21 39.6 125.3 -2.6 -37.7 -7 1 3 2400 12 44 00 12 46 00 --- 20 46 21 39.9 125.9 -2.6 -37.4 113 F 1 3200 12 46 00 IC1481 20 46 21 40.6 125.7 -2.6 -37.5 -7 1 3 3200 12 46 00 12 51 00 --- 20 51 22 41.4 127.0 -2.5 -36.8 293 F 1 5200 12 51 00 3C454.3 20 51 22 53.3 124.9 -2.0 -39.5 -30 1 3 5200 12 51 00 13 02 00 --- 21 02 24 54.9 128.5 -1.9 -37.5 630 F 1 9600 13 03 00 2334+076 21 03 24 42.3 124.9 -2.5 -38.1 29 1 3 9600 13 03 00 13 06 00 --- 21 06 24 42.7 125.7 -2.5 -37.7 180 F 1 10800 13 06 00 IC1481 21 06 24 43.5 131.1 -2.2 -34.4 -10 1 3 10800 13 06 00 13 14 00 --- 21 14 26 44.6 133.4 -2.1 -33.0 470 F 1 14000 13 14 00 2320+052 21 14 26 43.9 133.5 -2.1 -32.9 -7 1 3 14000 13 14 00 13 17 00 --- 21 17 26 44.3 134.4 -2.1 -32.3 173 F 1 15200 13 17 00 IC1481 21 17 26 45.0 134.3 -2.0 -32.5 -7 1 4 15200 13 17 00 13 25 00 --- 21 25 28 46.1 136.7 -1.9 -30.9 473 R 1 16800 13 25 00 2320+052 21 25 28 45.3 136.8 -1.9 -30.8 -7 1 4 16800 13 25 00 13 28 00 --- 21 28 28 45.7 137.7 -1.9 -30.2 173 R 1 15600 13 28 00 IC1481 21 28 28 46.5 137.7 -1.9 -30.3 -7 1 4 15600 13 28 00 13 36 00 --- 21 36 29 47.5 140.2 -1.7 -28.7 473 R 1 12400 13 36 00 2320+052 21 36 29 46.7 140.3 -1.7 -28.6 -7 1 4 12400 13 36 00 13 39 00 --- 21 39 30 47.1 141.2 -1.7 -28.0 173 R 1 11200 13 39 00 IC1481 21 39 30 47.8 141.2 -1.7 -28.0 -7 1 4 11200 13 39 00 13 47 00 --- 21 47 31 48.7 143.8 -1.5 -26.3 473 R 1 8000 Schedule for VLBA_NL (Code Nl ) 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 47 00 2320+052 21 47 31 48.0 143.8 -1.6 -26.2 -7 1 4 8000 13 47 00 13 50 00 --- 21 50 32 48.3 144.9 -1.5 -25.5 173 R 1 6800 13 50 00 IC1481 21 50 32 49.0 144.9 -1.5 -25.6 -7 1 4 6800 13 50 00 13 58 00 --- 21 58 33 49.9 147.7 -1.4 -23.6 473 R 1 3600 13 58 00 2320+052 21 58 33 49.1 147.6 -1.4 -23.7 -7 1 4 3600 13 58 00 14 01 00 --- 22 01 33 49.4 148.7 -1.3 -22.9 173 R 1 2400 14 01 00 IC1481 22 01 33 50.2 148.7 -1.3 -22.9 -7 1 5 2400 14 01 00 14 09 00 --- 22 09 35 50.9 151.6 -1.2 -20.9 473 F 1 800 14 09 00 2320+052 22 09 35 50.2 151.5 -1.2 -20.9 -7 1 5 800 14 09 00 14 12 00 --- 22 12 35 50.4 152.6 -1.1 -20.1 173 F 1 2000 14 12 00 IC1481 22 12 35 51.2 152.8 -1.1 -20.1 -7 1 5 2000 14 12 00 14 20 00 --- 22 20 37 51.8 155.8 -1.0 -17.9 473 F 1 5200 14 20 00 2320+052 22 20 37 51.1 155.6 -1.0 -18.0 -7 1 5 5200 14 20 00 14 23 00 --- 22 23 37 51.3 156.8 -1.0 -17.2 173 F 1 6400 14 23 00 IC1481 22 23 37 52.1 156.9 -0.9 -17.1 -7 1 5 6400 14 23 00 14 31 00 --- 22 31 38 52.6 160.1 -0.8 -14.8 473 F 1 9600 14 31 00 2334+076 22 31 38 53.1 153.4 -1.0 -19.7 -10 1 5 9600 14 31 00 14 33 00 --- 22 33 39 53.3 154.2 -1.0 -19.1 110 F 1 10400 14 33 00 IC1481 22 33 39 52.7 160.9 -0.8 -14.2 -10 1 5 10400 14 33 00 14 39 00 --- 22 39 40 53.1 163.3 -0.7 -12.4 350 F 1 12800 14 39 00 2320+052 22 39 40 52.3 163.0 -0.7 -12.6 -7 1 5 12800 14 39 00 14 41 00 --- 22 41 40 52.4 163.8 -0.7 -12.1 113 F 1 13600 14 41 00 IC1481 22 41 40 53.2 164.1 -0.6 -11.9 -7 1 5 13600 14 41 00 14 46 00 --- 22 46 41 53.4 166.2 -0.5 -10.3 293 F 1 15600 14 46 00 3C454.3 22 46 41 64.3 175.8 -0.1 -3.2 -28 1 6 15600 14 46 00 14 57 00 --- 22 57 43 64.4 182.0 0.1 1.5 632 R 1 15200 14 58 00 2334+076 22 58 43 55.0 164.4 -0.6 -11.6 35 1 6 15200 14 58 00 15 01 00 --- 23 01 43 55.1 165.7 -0.5 -10.7 180 R 1 14000 Schedule for VLBA_NL (Code Nl ) 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 --- 15 01 00 IC1481 23 01 43 53.9 172.4 -0.3 -5.7 -10 1 6 14000 15 01 00 15 09 00 --- 23 09 45 54.1 175.8 -0.2 -3.2 470 R 1 10800 15 09 00 2320+052 23 09 45 53.4 175.3 -0.2 -3.5 -7 1 6 10800 15 09 00 15 12 00 --- 23 12 45 53.4 176.6 -0.1 -2.6 173 R 1 9600 15 12 00 IC1481 23 12 45 54.1 177.1 -0.1 -2.2 -7 1 6 9600 15 12 00 15 20 00 --- 23 20 46 54.2 180.5 0.0 0.4 473 R 1 6400 15 20 00 2320+052 23 20 46 53.5 179.9 0.0 -0.1 -7 1 6 6400 15 20 00 15 23 00 --- 23 23 47 53.5 181.2 0.0 0.9 173 R 1 5200 15 23 00 IC1481 23 23 47 54.1 181.7 0.1 1.3 -7 1 6 5200 15 23 00 15 31 00 --- 23 31 48 54.1 185.1 0.2 3.9 473 R 1 2000 15 31 00 2320+052 23 31 48 53.4 184.5 0.2 3.4 -7 1 6 2000 15 31 00 15 34 00 --- 23 34 49 53.4 185.8 0.2 4.3 173 R 1 800 15 34 00 IC1481 23 34 49 54.0 186.4 0.3 4.8 -7 1 7 800 15 34 00 15 42 00 --- 23 42 50 53.8 189.8 0.4 7.3 473 F 1 2400 15 42 00 2320+052 23 42 50 53.2 189.1 0.4 6.8 -7 1 7 2400 15 42 00 15 45 00 --- 23 45 51 53.1 190.3 0.4 7.7 173 F 1 3600 15 45 00 IC1481 23 45 51 53.7 191.0 0.4 8.3 -7 1 7 3600 15 45 00 15 53 00 --- 23 53 52 53.4 194.3 0.6 10.7 473 F 1 6800 15 53 00 2320+052 23 53 52 52.8 193.6 0.5 10.1 -7 1 7 6800 15 53 00 15 56 00 --- 23 56 52 52.6 194.8 0.6 11.0 173 F 1 8000 15 56 00 IC1481 23 56 52 53.2 195.6 0.6 11.6 -7 1 7 8000 15 56 00 16 04 00 --- 00 04 54 52.8 198.8 0.8 14.0 473 F 1 11200 16 04 00 2320+052 00 04 54 52.2 198.0 0.7 13.4 -7 1 7 11200 16 04 00 16 07 00 --- 00 07 54 52.0 199.2 0.8 14.3 173 F 1 12400 16 07 00 IC1481 00 07 54 52.6 200.0 0.8 14.9 -7 1 7 12400 16 07 00 16 15 00 --- 00 15 56 52.0 203.1 0.9 17.1 473 F 1 15600 16 15 00 2320+052 00 15 56 51.5 202.3 0.9 16.5 -7 1 7 15600 16 15 00 16 18 00 --- 00 18 56 51.3 203.5 1.0 17.3 173 F 1 16800 Schedule for VLBA_NL (Code Nl ) 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 18 00 IC1481 00 18 56 51.8 204.3 1.0 18.0 -7 1 8 16800 16 18 00 16 26 00 --- 00 26 57 51.2 207.3 1.1 20.1 473 R 1 15200 16 26 00 2334+076 00 26 57 53.9 202.5 0.9 16.7 -12 1 8 15200 16 26 00 16 28 00 --- 00 28 58 53.8 203.3 0.9 17.3 108 R 1 14400 16 28 00 IC1481 00 28 58 51.0 208.1 1.2 20.7 -12 1 8 14400 16 28 00 16 34 00 --- 00 34 59 50.4 210.3 1.3 22.2 348 R 1 12000 16 34 00 2320+052 00 34 59 49.9 209.4 1.2 21.6 -7 1 8 12000 16 34 00 16 36 00 --- 00 36 59 49.8 210.1 1.3 22.1 113 R 1 11200 16 36 00 IC1481 00 36 59 50.2 211.0 1.3 22.7 -7 1 8 11200 16 36 00 16 41 00 --- 00 42 00 49.8 212.8 1.4 23.9 293 R 1 9200 16 41 00 3C454.3 00 42 00 55.5 230.2 1.8 36.6 -18 1 8 9200 16 41 00 16 52 00 --- 00 53 02 53.9 233.8 2.0 38.8 642 R 1 4800 16 53 00 2334+076 00 54 02 51.6 212.9 1.3 24.1 40 1 8 4800 16 53 00 16 56 00 --- 00 57 02 51.3 214.0 1.4 24.9 180 R 1 3600 16 56 00 IC1481 00 57 02 48.1 217.9 1.6 27.4 -12 1 8 3600 16 56 00 17 04 00 --- 01 05 04 47.2 220.5 1.8 29.1 468 R 1 400 17 04 00 2320+052 01 05 04 46.8 219.6 1.7 28.5 -7 1 9 400 17 04 00 17 07 00 --- 01 08 04 46.4 220.6 1.8 29.1 173 F 1 1600 17 07 00 IC1481 01 08 04 46.8 221.5 1.8 29.8 -7 1 9 1600 17 07 00 17 15 00 --- 01 16 05 45.8 224.0 1.9 31.4 473 F 1 4800 17 15 00 2320+052 01 16 05 45.4 223.0 1.9 30.7 -7 1 9 4800 17 15 00 17 18 00 --- 01 19 06 45.0 224.0 2.0 31.3 173 F 1 6000 17 18 00 IC1481 01 19 06 45.4 224.9 2.0 31.9 -7 1 9 6000 17 18 00 17 26 00 --- 01 27 07 44.3 227.2 2.1 33.4 473 F 1 9200 17 26 00 2320+052 01 27 07 44.0 226.3 2.1 32.8 -6 1 9 9200 17 26 00 17 29 00 --- 01 30 08 43.5 227.2 2.2 33.3 174 F 1 10400 17 29 00 IC1481 01 30 08 43.9 228.1 2.2 33.9 -6 1 9 10400 17 29 00 17 37 00 --- 01 38 09 42.8 230.4 2.3 35.3 474 F 1 13600 Schedule for VLBA_NL (Code Nl ) 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 37 00 2320+052 01 38 09 42.4 229.5 2.3 34.7 -6 1 9 13600 17 37 00 17 40 00 --- 01 41 09 42.0 230.3 2.3 35.2 174 F 1 14800 17 40 00 IC1481 01 41 09 42.4 231.2 2.4 35.7 -6 1 10 14800 17 40 00 17 48 00 --- 01 49 11 41.2 233.3 2.5 37.0 474 R 1 17200 17 48 00 2320+052 01 49 11 40.8 232.5 2.5 36.4 -6 1 10 17200 17 48 00 17 51 00 --- 01 52 11 40.4 233.2 2.5 36.9 174 R 1 16000 17 51 00 IC1481 01 52 11 40.7 234.1 2.5 37.4 -6 1 10 16000 17 51 00 17 59 00 --- 02 00 13 39.5 236.2 2.7 38.5 474 R 1 12800 17 59 00 2320+052 02 00 13 39.2 235.3 2.7 38.0 -6 1 10 12800 17 59 00 18 02 00 --- 02 03 13 38.7 236.1 2.7 38.4 174 R 1 11600 18 02 00 IC1481 02 03 13 39.0 236.9 2.7 38.9 -6 1 10 11600 18 02 00 18 10 00 --- 02 11 14 37.8 238.9 2.9 39.9 474 R 1 8400 18 10 00 2320+052 02 11 14 37.4 238.0 2.8 39.5 -6 1 10 8400 18 10 00 18 13 00 --- 02 14 15 37.0 238.8 2.9 39.8 174 R 1 7200 18 13 00 IC1481 02 14 15 37.3 239.6 2.9 40.3 -6 1 10 7200 18 13 00 18 21 00 --- 02 22 16 36.0 241.5 3.0 41.2 474 R 1 4000 18 21 00 2334+076 02 22 16 39.7 239.4 2.8 40.4 -13 1 10 4000 18 21 00 18 23 00 --- 02 24 17 39.3 239.9 2.8 40.6 107 R 1 3200 18 23 00 IC1481 02 24 17 35.6 242.0 3.1 41.4 -13 1 10 3200 18 23 00 18 29 00 --- 02 30 18 34.6 243.3 3.2 42.1 347 R 1 800 18 29 00 2320+052 02 30 18 34.4 242.5 3.2 41.6 -6 1 10 800 18 29 00 18 31 00 --- 02 32 18 34.0 242.9 3.2 41.8 114 R 1 0 18 31 00 IC1481 02 32 18 34.3 243.8 3.2 42.3 -6 1 11 0 18 31 00 18 36 00 --- 02 37 19 33.5 244.9 3.3 42.8 294 F 1 2000 18 36 00 3C454.3 02 37 19 36.0 259.2 3.7 49.7 -16 1 11 2000 18 36 00 18 47 00 --- 02 48 20 34.0 261.2 3.9 50.1 644 F 1 6400 18 48 00 2334+076 02 49 21 35.2 245.7 3.2 43.3 44 1 11 6400 18 48 00 18 51 00 --- 02 52 21 34.7 246.3 3.3 43.6 180 F 1 7600 Schedule for VLBA_NL (Code Nl ) 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 51 00 IC1481 02 52 21 30.9 248.1 3.5 44.1 -14 1 11 7600 18 51 00 18 59 00 --- 03 00 22 29.5 249.7 3.7 44.7 466 F 1 10800 18 59 00 2320+052 03 00 22 29.3 248.9 3.7 44.3 -6 1 11 10800 18 59 00 19 02 00 --- 03 03 23 28.7 249.5 3.7 44.6 174 F 1 12000 19 02 00 IC1481 03 03 23 29.0 250.4 3.7 44.9 -6 1 11 12000 19 02 00 19 10 00 --- 03 11 24 27.6 252.0 3.9 45.5 474 F 1 15200 19 10 00 2320+052 03 11 24 27.3 251.1 3.8 45.1 -6 1 11 15200 19 10 00 19 13 00 --- 03 14 25 26.8 251.7 3.9 45.3 174 F 1 16400 19 13 00 IC1481 03 14 25 27.0 252.5 3.9 45.7 -6 1 12 16400 19 13 00 19 21 00 --- 03 22 26 25.6 254.1 4.0 46.1 474 R 1 15600 19 21 00 2320+052 03 22 26 25.4 253.3 4.0 45.8 -6 1 12 15600 19 21 00 19 24 00 --- 03 25 27 24.8 253.9 4.1 46.0 174 R 1 14400 19 24 00 IC1481 03 25 27 25.1 254.7 4.1 46.3 -6 1 12 14400 19 24 00 19 32 00 --- 03 33 28 23.6 256.2 4.2 46.7 474 R 1 11200 19 32 00 2320+052 03 33 28 23.4 255.4 4.2 46.4 -6 1 12 11200 19 32 00 19 35 00 --- 03 36 28 22.8 255.9 4.3 46.6 174 R 1 10000 19 35 00 IC1481 03 36 28 23.1 256.7 4.3 46.9 -6 1 12 10000 19 35 00 19 43 00 --- 03 44 30 21.6 258.2 4.4 47.2 474 R 1 6800 19 43 00 2320+052 03 44 30 21.4 257.4 4.4 47.0 -6 1 12 6800 19 43 00 19 46 00 --- 03 47 30 20.8 258.0 4.4 47.1 174 R 1 5600 19 46 00 IC1481 03 47 30 21.0 258.7 4.5 47.3 -6 1 12 5600 19 46 00 19 54 00 --- 03 55 31 19.6 260.2 4.6 47.6 474 R 1 2400 19 54 00 3C454.3 03 55 31 21.5 272.8 5.0 50.9 -14 1 13 2400 19 54 00 20 05 00 --- 04 06 33 19.5 274.6 5.2 50.7 646 F 1 2000 20 06 00 2334+076 04 07 33 21.2 261.0 4.6 48.0 45 1 13 2000 20 06 00 20 09 00 --- 04 10 34 20.7 261.6 4.6 48.1 180 F 1 3200 20 09 00 IC1481 04 10 34 16.8 262.8 4.8 48.1 -14 1 13 3200 20 09 00 20 17 00 --- 04 18 35 15.3 264.2 5.0 48.2 466 F 1 6400 Schedule for VLBA_NL (Code Nl ) 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 17 00 2320+052 04 18 35 15.1 263.5 5.0 48.1 -6 1 13 6400 20 17 00 20 20 00 --- 04 21 36 14.6 264.0 5.0 48.1 174 F 1 7600 20 20 00 IC1481 04 21 36 14.8 264.7 5.0 48.3 -6 1 13 7600 20 20 00 20 29 00 --- 04 30 37 13.1 266.3 5.2 48.4 534 F 1 11200 20 29 00 2320+052 04 30 37 12.9 265.5 5.2 48.3 -6 1 13 11200 20 29 00 20 32 00 --- 04 33 38 12.3 266.0 5.2 48.3 174 F 1 12400 20 32 00 IC1481 04 33 38 12.5 266.8 5.2 48.5 -6 1 13 12400 20 32 00 20 41 00 --- 04 42 39 10.8 268.3 5.4 48.5 534 F 1 16000 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: bn032.set Matches group v1cm_a2 in /home/filehost/cwalker/sched/catalogs/freq.dat Setup group: 3 Station: VLBA_NL 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= 21000.00 21000.00 21000.00 21000.00 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 VLBA FE= omit 1cm omit 1cm VLBA Synth= 8.9 15.4 12.1 The following frequency sets based on this setup were used. Frequency Set: 4 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= 779.62 791.48 799.64 807.06 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 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