COVER INFORMATION Station: VLBA_PT (Code Pt ) Experiment: Monitoring OH outburst in PPN OH17.7-2.0 Exp. Code: BS161B Schedule Version: 5.00 Processed by SCHED version: 6.02 July 2005 PI: Marian Szymczak Address: Torun Centre for Astronomy ul. Gagarina 11, Torun, PL-87100 Poland Phone: +48 56 6113029 EMAIL: msz@astro.uni.torun.pl Fax: +48 56 6113009 Phone during observation: +48 56 6113010 Observing mode: Full polarization observations of the 1612 MHz OH masers Notes: Please, make sure PHASE CAL is OFF. Schedule for VLBA_PT (Code Pt ) Page 2 Monitoring OH outburst in PPN OH17.7-2.0 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). SYNC: Time correlator is expected to sync up. 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) SYNC ---------------------------------------------------------------------------------------- --- Mon 13 Feb 2006 Day 44 --- Next scan frequencies: 1611.65 1611.65 1611.53 1611.53 Next BBC frequencies: 788.35 788.35 788.47 788.47 Next scan bandwidths: 1.00 1.00 1.00 1.00 09 59 17 3C286_W 12 20 00 74.5 99.3 -1.2 -71.1 0 1 1 0 09 59 17 10 31 11 --- 12 52 00 80.8 112.0 -0.7 -62.7 1915 F 1 6383 09 59 42 Next scan frequencies: 1612.12 1612.12 1612.00 1612.00 Next BBC frequencies: 787.88 787.88 788.00 788.00 Next scan bandwidths: 0.06 0.06 0.06 0.06 10 31 11 3C286_N 12 52 00 80.8 112.0 -0.7 -62.7 -4 1 1 6383 10 31 11 11 05 06 --- 13 26 00 86.0 162.9 -0.1 -16.3 2030 F 1 13164 10 31 11 11 05 06 3C345_N 13 26 00 50.8 67.1 -3.3 -82.0 -76 1 2 13164 11 05 06 11 31 02 --- 13 52 00 55.7 68.0 -2.9 -85.4 1479 R 1 16850 11 05 06 Next scan frequencies: 1611.65 1611.65 1611.53 1611.53 Next BBC frequencies: 788.35 788.35 788.47 788.47 Next scan bandwidths: 1.00 1.00 1.00 1.00 11 31 02 3C345_W 13 52 00 55.7 68.0 -2.9 -85.4 -4 1 2 16850 11 31 02 11 56 57 --- 14 18 00 60.7 68.4 -2.4 -89.2 1552 R 1 11664 11 31 02 11 56 57 J1733_W 14 18 00 23.7 126.8 -3.3 -42.8 -80 1 2 11664 11 56 57 12 01 56 --- 14 23 00 24.5 127.8 -3.2 -42.1 219 R 1 10667 11 56 57 Next scan frequencies: 1612.12 1612.12 1612.00 1612.00 Next BBC frequencies: 787.88 787.88 788.00 788.00 Next scan bandwidths: 0.06 0.06 0.06 0.06 12 01 56 J1733_N 14 23 00 24.5 127.8 -3.2 -42.1 -4 1 2 10667 12 01 56 12 09 55 --- 14 31 00 25.8 129.4 -3.0 -41.0 475 R 1 9072 12 01 56 12 09 55 OH17.7-2.0 14 31 00 15.0 119.8 -4.0 -47.8 -28 1 2 9072 12 09 55 12 22 53 --- 14 44 00 17.3 122.0 -3.8 -46.3 750 R 1 6479 12 09 55 12 22 53 OH17.7-2.0 14 44 00 17.3 122.0 -3.8 -46.3 -4 1 2 6479 12 22 53 12 35 51 --- 14 57 00 19.6 124.3 -3.6 -44.8 774 R 1 3886 12 22 53 Schedule for VLBA_PT (Code Pt ) Page 3 Monitoring OH outburst in PPN OH17.7-2.0 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). SYNC: Time correlator is expected to sync up. 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) SYNC ---------------------------------------------------------------------------------------- --- Mon 13 Feb 2006 Day 44 --- 12 35 51 OH17.7-2.0 14 57 00 19.6 124.3 -3.6 -44.8 -4 1 2 3886 12 35 51 12 48 49 --- 15 10 00 21.8 126.8 -3.3 -43.1 774 R 1 1293 12 35 51 Next scan frequencies: 1611.65 1611.65 1611.53 1611.53 Next BBC frequencies: 788.35 788.35 788.47 788.47 Next scan bandwidths: 1.00 1.00 1.00 1.00 12 48 49 J1733_W 15 10 00 31.6 137.9 -2.4 -34.6 -26 1 2 1293 12 48 49 12 53 48 --- 15 15 00 32.3 139.1 -2.3 -33.7 273 R 1 296 12 48 49 Next scan frequencies: 1612.12 1612.12 1612.00 1612.00 Next BBC frequencies: 787.88 787.88 788.00 788.00 Next scan bandwidths: 0.06 0.06 0.06 0.06 12 53 48 J1733_N 15 15 00 32.3 139.1 -2.3 -33.7 -4 1 1 296 12 53 48 13 01 47 --- 15 23 00 33.4 141.1 -2.2 -32.2 475 F 2 1891 12 53 48 13 03 46 OH17.7-2.0 15 25 00 24.2 129.7 -3.1 -41.0 95 1 1 1891 13 03 46 13 16 44 --- 15 38 00 26.2 132.3 -2.9 -39.1 778 F 2 4484 13 04 11 13 16 44 OH17.7-2.0 15 38 00 26.2 132.3 -2.9 -39.1 -4 1 1 4484 13 16 44 13 29 42 --- 15 51 00 28.2 135.1 -2.7 -37.0 774 F 2 7077 13 16 44 13 29 42 OH17.7-2.0 15 51 00 28.2 135.1 -2.7 -37.0 -4 1 1 7077 13 29 42 13 42 40 --- 16 04 00 30.0 138.1 -2.4 -34.8 774 F 2 9670 13 29 42 Next scan frequencies: 1611.65 1611.65 1611.53 1611.53 Next BBC frequencies: 788.35 788.35 788.47 788.47 Next scan bandwidths: 1.00 1.00 1.00 1.00 13 42 40 J1733_W 16 04 00 38.1 151.9 -1.5 -23.5 -22 1 1 9670 13 42 40 13 47 39 --- 16 09 00 38.5 153.4 -1.4 -22.3 277 F 2 10667 13 42 40 Next scan frequencies: 1612.12 1612.12 1612.00 1612.00 Next BBC frequencies: 787.88 787.88 788.00 788.00 Next scan bandwidths: 0.06 0.06 0.06 0.06 13 47 39 J1733_N 16 09 00 38.5 153.4 -1.4 -22.3 -4 1 1 10667 13 47 39 13 55 38 --- 16 17 00 39.3 155.7 -1.3 -20.4 475 F 2 12263 13 47 39 Schedule for VLBA_PT (Code Pt ) Page 4 Monitoring OH outburst in PPN OH17.7-2.0 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). SYNC: Time correlator is expected to sync up. 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) SYNC ---------------------------------------------------------------------------------------- --- Mon 13 Feb 2006 Day 44 --- 13 55 38 3C286_N 16 17 00 55.1 275.5 2.8 72.6 -86 1 1 12263 13 55 38 14 21 34 --- 16 43 00 49.7 278.3 3.2 71.5 1470 F 2 17449 13 55 38 Next scan frequencies: 1611.65 1611.65 1611.53 1611.53 Next BBC frequencies: 788.35 788.35 788.47 788.47 Next scan bandwidths: 1.00 1.00 1.00 1.00 14 21 34 3C286_W 16 43 00 49.7 278.3 3.2 71.5 -4 1 2 17449 14 21 34 14 47 29 --- 17 09 00 44.5 281.0 3.6 70.2 1552 R 2 12263 14 21 34 14 47 29 J1733_W 17 09 00 42.3 172.0 -0.4 -6.8 -79 1 2 12263 14 47 29 14 52 28 --- 17 14 00 42.4 173.6 -0.3 -5.4 220 R 2 11266 14 47 29 Next scan frequencies: 1612.12 1612.12 1612.00 1612.00 Next BBC frequencies: 787.88 787.88 788.00 788.00 Next scan bandwidths: 0.06 0.06 0.06 0.06 14 52 28 J1733_N 17 14 00 42.4 173.6 -0.3 -5.4 -4 1 2 11266 14 52 28 15 00 27 --- 17 22 00 42.5 176.2 -0.2 -3.2 475 R 2 9670 14 52 28 15 02 27 OH17.7-2.0 17 24 00 38.7 159.1 -1.1 -17.7 102 1 2 9670 15 02 27 15 15 25 --- 17 37 00 39.6 163.0 -0.9 -14.4 778 R 2 7077 15 02 52 15 15 25 OH17.7-2.0 17 37 00 39.6 163.0 -0.9 -14.4 -4 1 2 7077 15 15 25 15 28 23 --- 17 50 00 40.3 167.0 -0.7 -11.1 774 R 2 4484 15 15 25 15 28 23 OH17.7-2.0 17 50 00 40.3 167.0 -0.7 -11.1 -4 1 2 4484 15 28 23 15 41 20 --- 18 03 00 40.8 171.1 -0.5 -7.6 774 R 2 1891 15 28 23 Next scan frequencies: 1611.65 1611.65 1611.53 1611.53 Next BBC frequencies: 788.35 788.35 788.47 788.47 Next scan bandwidths: 1.00 1.00 1.00 1.00 15 41 20 J1733_W 18 03 00 42.1 189.7 0.5 8.2 -18 1 2 1891 15 41 20 15 46 20 --- 18 08 00 41.9 191.4 0.6 9.6 281 R 2 894 15 41 20 Schedule for VLBA_PT (Code Pt ) Page 5 Monitoring OH outburst in PPN OH17.7-2.0 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). SYNC: Time correlator is expected to sync up. 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) SYNC ---------------------------------------------------------------------------------------- --- Mon 13 Feb 2006 Day 44 --- Next scan frequencies: 1612.12 1612.12 1612.00 1612.00 Next BBC frequencies: 787.88 787.88 788.00 788.00 Next scan bandwidths: 0.06 0.06 0.06 0.06 15 46 20 J1733_N 18 08 00 41.9 191.4 0.6 9.6 -4 1 1 894 15 46 20 15 54 18 --- 18 16 00 41.5 193.9 0.7 11.8 475 F 3 702 15 46 20 15 54 18 OH17.7-2.0 18 16 00 41.1 175.2 -0.2 -4.1 -18 1 1 702 15 54 18 16 07 16 --- 18 29 00 41.2 179.4 0.0 -0.5 759 F 3 3295 15 54 18 16 07 16 OH17.7-2.0 18 29 00 41.2 179.4 0.0 -0.5 -4 1 1 3295 16 07 16 16 20 14 --- 18 42 00 41.1 183.6 0.2 3.1 774 F 3 5888 16 07 16 16 20 14 OH17.7-2.0 18 42 00 41.1 183.6 0.2 3.1 -4 1 1 5888 16 20 14 16 33 12 --- 18 55 00 40.9 187.7 0.4 6.6 774 F 3 8480 16 20 14 Next scan frequencies: 1611.65 1611.65 1611.53 1611.53 Next BBC frequencies: 788.35 788.35 788.47 788.47 Next scan bandwidths: 1.00 1.00 1.00 1.00 16 33 12 J1733_W 18 55 00 38.8 205.8 1.4 21.7 -18 1 1 8480 16 33 12 16 38 11 --- 19 00 00 38.3 207.3 1.4 22.9 281 F 3 9478 16 33 12 Next scan frequencies: 1612.12 1612.12 1612.00 1612.00 Next BBC frequencies: 787.88 787.88 788.00 788.00 Next scan bandwidths: 0.06 0.06 0.06 0.06 16 38 11 J1733_N 19 00 00 38.3 207.3 1.4 22.9 -4 1 1 9478 16 38 11 16 46 10 --- 19 08 00 37.5 209.5 1.6 24.7 475 F 3 11073 16 38 11 16 48 09 OH17.7-2.0 19 10 00 40.3 192.5 0.7 10.6 102 1 1 11073 16 48 09 17 01 07 --- 19 23 00 39.7 196.5 0.9 14.0 778 F 3 13666 16 48 34 17 01 07 OH17.7-2.0 19 23 00 39.7 196.5 0.9 14.0 -4 1 1 13666 17 01 07 17 14 05 --- 19 36 00 38.8 200.4 1.1 17.3 774 F 3 16259 17 01 07 17 14 05 OH17.7-2.0 19 36 00 38.8 200.4 1.1 17.3 -4 1 2 16259 17 14 05 17 27 03 --- 19 49 00 37.8 204.2 1.3 20.5 774 R 3 16348 17 14 05 Schedule for VLBA_PT (Code Pt ) Page 6 Monitoring OH outburst in PPN OH17.7-2.0 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). SYNC: Time correlator is expected to sync up. 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) SYNC ---------------------------------------------------------------------------------------- --- Mon 13 Feb 2006 Day 44 --- Next scan frequencies: 1611.65 1611.65 1611.53 1611.53 Next BBC frequencies: 788.35 788.35 788.47 788.47 Next scan bandwidths: 1.00 1.00 1.00 1.00 17 27 03 J1733_W 19 49 00 32.7 220.2 2.3 33.2 -17 1 2 16348 17 27 03 17 32 02 --- 19 54 00 32.0 221.4 2.3 34.1 282 R 3 15351 17 27 03 Next scan frequencies: 1612.12 1612.12 1612.00 1612.00 Next BBC frequencies: 787.88 787.88 788.00 788.00 Next scan bandwidths: 0.06 0.06 0.06 0.06 17 32 02 J1733_N 19 54 00 32.0 221.4 2.3 34.1 -4 1 2 15351 17 32 02 17 40 01 --- 20 02 00 30.9 223.3 2.5 35.6 475 R 3 13755 17 32 02 17 40 01 OH17.7-2.0 20 02 00 36.6 207.9 1.5 23.5 -17 1 2 13755 17 40 01 17 52 59 --- 20 15 00 35.3 211.4 1.7 26.4 760 R 3 11162 17 40 01 17 52 59 OH17.7-2.0 20 15 00 35.3 211.4 1.7 26.4 -4 1 2 11162 17 52 59 18 05 57 --- 20 28 00 33.8 214.8 2.0 29.1 774 R 3 8569 17 52 59 18 05 57 OH17.7-2.0 20 28 00 33.8 214.8 2.0 29.1 -4 1 2 8569 18 05 57 18 18 55 --- 20 41 00 32.2 218.0 2.2 31.7 774 R 3 5976 18 05 57 Next scan frequencies: 1611.65 1611.65 1611.53 1611.53 Next BBC frequencies: 788.35 788.35 788.47 788.47 Next scan bandwidths: 1.00 1.00 1.00 1.00 18 18 55 J1733_W 20 41 00 25.0 231.7 3.1 41.7 -21 1 2 5976 18 18 55 18 23 54 --- 20 46 00 24.2 232.7 3.2 42.4 279 R 3 4979 18 18 55 Next scan frequencies: 1612.12 1612.12 1612.00 1612.00 Next BBC frequencies: 787.88 787.88 788.00 788.00 Next scan bandwidths: 0.06 0.06 0.06 0.06 18 23 54 J1733_N 20 46 00 24.2 232.7 3.2 42.4 -4 1 2 4979 18 23 54 18 31 52 --- 20 54 00 22.8 234.2 3.3 43.5 475 R 3 3383 18 23 54 18 33 52 OH17.7-2.0 20 56 00 30.3 221.6 2.4 34.5 99 1 2 3383 18 33 52 18 46 50 --- 21 09 00 28.4 224.5 2.6 36.7 778 R 3 791 18 34 17 Schedule for VLBA_PT (Code Pt ) Page 7 Monitoring OH outburst in PPN OH17.7-2.0 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). SYNC: Time correlator is expected to sync up. 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) SYNC ---------------------------------------------------------------------------------------- --- Mon 13 Feb 2006 Day 44 --- 18 46 50 OH17.7-2.0 21 09 00 28.4 224.5 2.6 36.7 -4 1 1 791 18 46 50 18 59 48 --- 21 22 00 26.5 227.3 2.9 38.8 774 F 4 1802 18 46 50 18 59 48 OH17.7-2.0 21 22 00 26.5 227.3 2.9 38.8 -4 1 1 1802 18 59 48 19 12 46 --- 21 35 00 24.5 230.0 3.1 40.8 774 F 4 4395 18 59 48 Next scan frequencies: 1611.65 1611.65 1611.53 1611.53 Next BBC frequencies: 788.35 788.35 788.47 788.47 Next scan bandwidths: 1.00 1.00 1.00 1.00 19 12 46 J1733_W 21 35 00 15.7 241.6 4.0 48.2 -24 1 1 4395 19 12 46 19 17 45 --- 21 40 00 14.7 242.4 4.1 48.7 276 F 4 5392 19 12 46 Next scan frequencies: 1612.12 1612.12 1612.00 1612.00 Next BBC frequencies: 787.88 787.88 788.00 788.00 Next scan bandwidths: 0.06 0.06 0.06 0.06 19 17 45 J1733_N 21 40 00 14.7 242.4 4.1 48.7 -4 1 1 5392 19 17 45 19 25 44 --- 21 48 00 13.3 243.7 4.2 49.5 475 F 4 6988 19 17 45 19 25 44 OH17.7-2.0 21 48 00 22.4 232.5 3.3 42.6 -24 1 1 6988 19 25 44 19 38 41 --- 22 01 00 20.2 235.0 3.5 44.3 754 F 4 9581 19 25 44 19 38 41 OH17.7-2.0 22 01 00 20.2 235.0 3.5 44.3 -4 1 1 9581 19 38 41 19 51 39 --- 22 14 00 18.0 237.3 3.7 45.9 774 F 4 12174 19 38 41 19 51 39 OH17.7-2.0 22 14 00 18.0 237.3 3.7 45.9 -4 1 1 12174 19 51 39 20 04 37 --- 22 27 00 15.7 239.6 3.9 47.4 774 F 4 14767 19 51 39 Next scan frequencies: 1611.65 1611.65 1611.53 1611.53 Next BBC frequencies: 788.35 788.35 788.47 788.47 Next scan bandwidths: 1.00 1.00 1.00 1.00 20 06 37 2253_W 22 29 00 71.0 161.1 -0.4 -16.2 3 1 2 14767 20 06 37 20 49 30 --- 23 12 00 71.4 193.5 0.3 11.6 2573 R 4 11857 20 07 02 Schedule for VLBA_PT (Code Pt ) Page 8 Monitoring OH outburst in PPN OH17.7-2.0 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). SYNC: Time correlator is expected to sync up. 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) SYNC ---------------------------------------------------------------------------------------- --- Mon 13 Feb 2006 Day 44 --- Next scan frequencies: 1612.12 1612.12 1612.00 1612.00 Next BBC frequencies: 787.88 787.88 788.00 788.00 Next scan bandwidths: 0.06 0.06 0.06 0.06 20 49 30 2253_N 23 12 00 71.4 193.5 0.3 11.6 -4 1 3 11857 20 49 30 21 58 19 --- 00 21 00 63.4 232.5 1.4 43.0 4125 F 1 1906 20 49 30 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: bs161wide.set Matches group v20cm_2 in /users/cwalker/files/sched_6.03b/catalogs/freq.dat FD filtered above 1760. SC filtered above 1740. Setup group: 16 Station: VLBA_PT Total bit rate: 16 Format: VLBA1:1 Bits per sample: 2 Sample rate: 2.000 Number of channels: 4 Passes/head pos: 4 Speedup factor: 4.00 Tape used at high density at 40.000 ips. Time per pass is 88.00 minutes. 1st LO= 2400.00 2400.00 2400.00 2400.00 Net SB= U U U U Pol. = LCP RCP LCP RCP BBC = 1 2 3 4 BBC SB= L L L L IF = C A C A VLBA FE= 20cm omit 20cm omit VLBA Synth= 15.4 2.4 15.4 The following frequency sets based on this setup were used. Frequency Set: 6 Based on FREQ, BW, and/or DOPPLER in schedule. Used pcal sets: 1 LO sum= 1611.65 1611.65 1611.53 1611.53 BBC fr= 788.35 788.35 788.47 788.47 Bandwd= 1.000 1.000 1.000 1.000 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, 6, 10, 14 track2= 18, 22, 26, 30 track3= 3, 7, 11, 15 track4= 19, 23, 27, 31 barrel=roll_auto Setup file: bs161narrow.set Matches group v20cm_2 in /users/cwalker/files/sched_6.03b/catalogs/freq.dat FD filtered above 1760. SC filtered above 1740. Setup group: 6 Station: VLBA_PT Total bit rate: 16 Format: VLBA1:1 Bits per sample: 2 Sample rate: 2.000 Number of channels: 4 Passes/head pos: 4 Speedup factor: 4.00 Tape used at high density at 40.000 ips. Time per pass is 88.00 minutes. 1st LO= 2400.00 2400.00 2400.00 2400.00 Net SB= U U U U Pol. = LCP RCP LCP RCP BBC = 1 2 3 4 BBC SB= L L L L IF = C A C A VLBA FE= 20cm omit 20cm omit VLBA Synth= 15.4 2.4 15.4 The following frequency sets based on this setup were used. Frequency Set: 16 Based on FREQ, BW, and/or DOPPLER in schedule. Used pcal sets: 1 LO sum= 1612.12 1612.12 1612.00 1612.00 BBC fr= 787.88 787.88 788.00 788.00 Bandwd= 0.062 0.062 0.062 0.062 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, 6, 10, 14 track2= 18, 22, 26, 30 track3= 3, 7, 11, 15 track4= 19, 23, 27, 31 barrel=roll_auto SOURCE LIST -- Monitoring OH outburst in PPN OH17.7-2.0 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) * OH17.7-2.0 18 27 39.767201 * 18 30 30.695000 18 30 50.623316 0.00 -14 31 03.68772 *-14 28 56.82000 -14 28 52.72575 0.00 From catalog imbedded in main SCHED input file. Doppler based on LSR frame and radio definition. Velocities: 50.00 50.00 73.00 73.00 5.186 scan hours, 191.385 baseline hours above horizon. * 3C345_W 16 41 17.606231 * 16 42 58.809968 16 43 10.785408 0.00 39 54 10.81493 * 39 48 36.99399 39 47 30.89089 0.00 From catalog imbedded in main SCHED input file. Doppler based on other sources. 0.432 scan hours, 19.397 baseline hours above horizon. * 3C345_N 16 41 17.606231 * 16 42 58.809968 16 43 10.785408 0.00 39 54 10.81493 * 39 48 36.99399 39 47 30.89089 0.00 From catalog imbedded in main SCHED input file. Doppler based on other sources. 0.432 scan hours, 18.262 baseline hours above horizon. * 3C286_W 13 28 49.657757 * 13 31 08.288049 13 31 26.280896 0.00 30 45 58.64062 * 30 30 32.95926 30 28 21.96428 0.00 From catalog imbedded in main SCHED input file. Doppler based on other sources. 0.964 scan hours, 43.331 baseline hours above horizon. * 3C286_N 13 28 49.657757 * 13 31 08.288049 13 31 26.280896 0.00 30 45 58.64062 * 30 30 32.95926 30 28 21.96428 0.00 From catalog imbedded in main SCHED input file. Doppler based on other sources. 0.997 scan hours, 43.647 baseline hours above horizon. * J1733_W 17 30 13.535187 * 17 33 02.705785 17 33 22.658034 0.00 -13 02 45.83975 *-13 04 49.54823 -13 05 15.76920 0.00 From catalog imbedded in main SCHED input file. Doppler based on other sources. 0.748 scan hours, 23.453 baseline hours above horizon. * J1733_N 17 30 13.535187 * 17 33 02.705785 17 33 22.658034 0.00 -13 02 45.83975 *-13 04 49.54823 -13 05 15.76920 0.00 From catalog imbedded in main SCHED input file. Doppler based on other sources. 1.197 scan hours, 44.568 baseline hours above horizon. * 2253_W 22 51 29.519743 * 22 53 57.747942 22 54 14.433721 0.00 15 52 54.34803 * 16 08 53.56086 16 10 44.05441 0.00 From catalog imbedded in main SCHED input file. Doppler based on other sources. 0.715 scan hours, 32.141 baseline hours above horizon. * 2253_N 22 51 29.519743 * 22 53 57.747942 22 54 14.433721 0.00 15 52 54.34803 * 16 08 53.56086 16 10 44.05441 0.00 From catalog imbedded in main SCHED input file. Doppler based on other sources. 1.147 scan hours, 51.559 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) OH17.7-2.0 47.9 3C345_W 88.3 3C345_N 88.3 3C286_W 126.0 3C286_N 126.0 J1733_W 61.9 J1733_N 61.9 2253_W 33.6 2253_N 33.6 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