COVER INFORMATION Station: VLBA_FD (Code Fd ) 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_FD (Code Fd ) 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 36 42 78.2 87.3 -0.9 -85.7 0 1 1 0 09 59 17 10 31 11 --- 13 08 42 85.1 90.5 -0.4 -86.7 1915 F 1 0 09 59 52 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 13 08 42 85.1 90.5 -0.4 -86.7 -4 1 1 0 10 31 11 11 05 06 --- 13 42 42 87.6 266.9 0.2 85.5 2030 F 1 0 10 31 11 11 05 06 3C345_N 13 42 42 52.4 423.3 -3.0 -89.7 -110 1 1 0 11 05 06 11 31 02 --- 14 08 42 57.4 423.0 -2.6 -94.1 1445 F 1 0 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 14 08 42 57.4 423.0 -2.6 -94.1 -4 1 1 0 11 31 02 11 56 57 --- 14 34 42 62.4 421.8 -2.1 -99.3 1552 F 1 0 11 31 02 11 56 57 J1733_W 14 34 42 28.7 128.7 -3.0 -43.6 -201 1 1 0 11 56 57 12 01 56 --- 14 39 42 29.6 129.7 -2.9 -42.8 98 F 1 0 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 39 42 29.6 129.7 -2.9 -42.8 -4 1 1 0 12 01 56 12 09 55 --- 14 47 42 30.9 131.3 -2.8 -41.5 475 F 1 0 12 01 56 12 09 55 OH17.7-2.0 14 47 42 19.9 121.6 -3.7 -49.2 -28 1 1 0 12 09 55 12 22 53 --- 15 00 42 22.3 123.8 -3.5 -47.6 750 F 1 0 12 09 55 12 22 53 OH17.7-2.0 15 00 42 22.3 123.8 -3.5 -47.6 -4 1 1 0 12 22 53 12 35 51 --- 15 13 42 24.6 126.2 -3.3 -45.8 774 F 1 0 12 22 53 Schedule for VLBA_FD (Code Fd ) 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 15 13 42 24.6 126.2 -3.3 -45.8 -4 1 1 0 12 35 51 12 48 49 --- 15 26 42 26.8 128.7 -3.1 -43.9 774 F 1 0 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 26 42 36.7 140.4 -2.1 -34.3 -26 1 1 0 12 48 49 12 53 48 --- 15 31 42 37.4 141.6 -2.0 -33.3 273 F 1 0 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 31 42 37.4 141.6 -2.0 -33.3 -4 1 1 0 12 53 48 13 01 47 --- 15 39 42 38.4 143.7 -1.9 -31.5 475 F 1 0 12 53 48 13 03 46 OH17.7-2.0 15 41 42 29.3 131.7 -2.8 -41.6 95 1 1 0 13 03 46 13 16 44 --- 15 54 42 31.3 134.5 -2.6 -39.4 778 F 1 0 13 04 21 13 16 44 OH17.7-2.0 15 54 42 31.3 134.5 -2.6 -39.4 -4 1 1 0 13 16 44 13 29 42 --- 16 07 42 33.3 137.4 -2.4 -37.0 774 F 1 0 13 16 44 13 29 42 OH17.7-2.0 16 07 42 33.3 137.4 -2.4 -37.0 -4 1 1 0 13 29 42 13 42 40 --- 16 20 42 35.1 140.5 -2.2 -34.4 774 F 1 0 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 20 42 42.9 155.5 -1.2 -21.5 -22 1 1 0 13 42 40 13 47 39 --- 16 25 42 43.3 157.1 -1.1 -20.1 278 F 1 0 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 25 42 43.3 157.1 -1.1 -20.1 -4 1 1 0 13 47 39 13 55 38 --- 16 33 42 44.0 159.6 -1.0 -17.9 475 F 1 0 13 47 39 Schedule for VLBA_FD (Code Fd ) 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 33 42 51.0 281.8 3.0 77.7 -87 1 1 0 13 55 38 14 21 34 --- 16 59 42 45.6 283.8 3.5 75.9 1468 F 1 0 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 59 42 45.6 283.8 3.5 75.9 -4 1 1 0 14 21 34 14 47 29 --- 17 25 42 40.2 285.7 3.9 73.9 1552 F 1 0 14 21 34 14 47 29 J1733_W 17 25 42 46.2 177.3 -0.1 -2.4 -78 1 1 0 14 47 29 14 52 28 --- 17 30 42 46.3 179.1 0.0 -0.8 221 F 1 0 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 30 42 46.3 179.1 0.0 -0.8 -4 1 1 0 14 52 28 15 00 27 --- 17 38 42 46.3 181.9 0.1 1.7 475 F 1 0 14 52 28 15 02 27 OH17.7-2.0 17 40 42 43.3 163.2 -0.8 -14.9 101 1 1 0 15 02 27 15 15 25 --- 17 53 42 44.0 167.5 -0.6 -11.1 778 F 1 0 15 03 02 15 15 25 OH17.7-2.0 17 53 42 44.0 167.5 -0.6 -11.1 -4 1 1 0 15 15 25 15 28 23 --- 18 06 42 44.5 171.8 -0.4 -7.3 774 F 1 0 15 15 25 15 28 23 OH17.7-2.0 18 06 42 44.5 171.8 -0.4 -7.3 -4 1 1 0 15 28 23 15 41 20 --- 18 19 42 44.8 176.2 -0.2 -3.4 774 F 1 0 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 19 42 44.9 196.0 0.8 14.1 -19 1 1 0 15 41 20 15 46 20 --- 18 24 42 44.6 197.7 0.9 15.6 280 F 1 0 15 41 20 Schedule for VLBA_FD (Code Fd ) 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 24 42 44.6 197.7 0.9 15.6 -4 1 1 0 15 46 20 15 54 18 --- 18 32 42 44.0 200.3 1.0 17.8 475 F 1 0 15 46 20 15 54 18 OH17.7-2.0 18 32 42 44.9 180.6 0.0 0.6 -19 1 1 0 15 54 18 16 07 16 --- 18 45 42 44.7 185.1 0.2 4.5 759 F 1 0 15 54 18 16 07 16 OH17.7-2.0 18 45 42 44.7 185.1 0.2 4.5 -4 1 1 0 16 07 16 16 20 14 --- 18 58 42 44.4 189.5 0.5 8.4 774 F 1 0 16 07 16 16 20 14 OH17.7-2.0 18 58 42 44.4 189.5 0.5 8.4 -4 1 1 0 16 20 14 16 33 12 --- 19 11 42 43.8 193.8 0.7 12.2 774 F 1 0 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 19 11 42 40.3 212.1 1.6 28.0 -18 1 1 0 16 33 12 16 38 11 --- 19 16 42 39.7 213.5 1.7 29.2 281 F 1 0 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 16 42 39.7 213.5 1.7 29.2 -4 1 1 0 16 38 11 16 46 10 --- 19 24 42 38.7 215.7 1.9 31.0 475 F 1 0 16 38 11 16 48 09 OH17.7-2.0 19 26 42 42.9 198.6 0.9 16.5 102 1 1 0 16 48 09 17 01 07 --- 19 39 42 41.9 202.7 1.1 20.0 778 F 1 0 16 48 44 17 01 07 OH17.7-2.0 19 39 42 41.9 202.7 1.1 20.0 -4 1 1 0 17 01 07 17 14 05 --- 19 52 42 40.8 206.6 1.4 23.4 774 F 1 0 17 01 07 17 14 05 OH17.7-2.0 19 52 42 40.8 206.6 1.4 23.4 -4 1 1 0 17 14 05 17 27 03 --- 20 05 42 39.4 210.3 1.6 26.6 774 F 1 0 17 14 05 Schedule for VLBA_FD (Code Fd ) 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 20 05 42 33.0 225.7 2.5 39.2 -19 1 1 0 17 27 03 17 32 02 --- 20 10 42 32.2 226.8 2.6 40.1 280 F 1 0 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 20 10 42 32.2 226.8 2.6 40.1 -4 1 1 0 17 32 02 17 40 01 --- 20 18 42 30.9 228.6 2.8 41.5 475 F 1 0 17 32 02 17 40 01 OH17.7-2.0 20 18 42 38.0 213.8 1.8 29.7 -20 1 1 0 17 40 01 17 52 59 --- 20 31 42 36.3 217.2 2.0 32.5 758 F 1 0 17 40 01 17 52 59 OH17.7-2.0 20 31 42 36.3 217.2 2.0 32.5 -4 1 1 0 17 52 59 18 05 57 --- 20 44 42 34.6 220.4 2.2 35.2 774 F 1 0 17 52 59 18 05 57 OH17.7-2.0 20 44 42 34.6 220.4 2.2 35.2 -4 1 1 0 18 05 57 18 18 55 --- 20 57 42 32.7 223.5 2.4 37.7 774 F 1 0 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 57 42 24.3 236.2 3.4 47.3 -23 1 1 0 18 18 55 18 23 54 --- 21 02 42 23.4 237.1 3.5 47.9 276 F 1 0 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 21 02 42 23.4 237.1 3.5 47.9 -4 1 1 0 18 23 54 18 31 52 --- 21 10 42 21.9 238.5 3.6 48.9 475 F 1 0 18 23 54 18 33 52 OH17.7-2.0 21 12 42 30.4 226.8 2.7 40.4 97 1 1 0 18 33 52 18 46 50 --- 21 25 42 28.3 229.5 2.9 42.5 778 F 1 0 18 34 27 Schedule for VLBA_FD (Code Fd ) 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 25 42 28.3 229.5 2.9 42.5 -4 1 1 0 18 46 50 18 59 48 --- 21 38 42 26.2 232.1 3.1 44.5 774 F 1 0 18 46 50 18 59 48 OH17.7-2.0 21 38 42 26.2 232.1 3.1 44.5 -4 1 1 0 18 59 48 19 12 46 --- 21 51 42 23.9 234.5 3.3 46.3 774 F 1 0 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 51 42 14.1 245.1 4.3 53.3 -26 1 1 0 19 12 46 19 17 45 --- 21 56 42 13.2 245.9 4.4 53.7 274 F 1 0 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 56 42 13.2 245.9 4.4 53.7 -4 1 1 0 19 17 45 19 25 44 --- 22 04 42 11.6 247.0 4.5 54.4 475 F 1 0 19 17 45 19 25 44 OH17.7-2.0 22 04 42 21.6 236.8 3.6 48.0 -26 1 1 0 19 25 44 19 38 41 --- 22 17 42 19.3 239.0 3.8 49.6 752 F 1 0 19 25 44 19 38 41 OH17.7-2.0 22 17 42 19.3 239.0 3.8 49.6 -4 1 1 0 19 38 41 19 51 39 --- 22 30 42 16.8 241.1 4.0 51.1 774 F 1 0 19 38 41 19 51 39 OH17.7-2.0 22 30 42 16.8 241.1 4.0 51.1 -4 1 1 0 19 51 39 20 04 37 --- 22 43 42 14.4 243.2 4.2 52.5 774 F 1 0 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 45 42 75.4 171.8 -0.1 -7.3 -8 1 1 0 20 06 37 20 49 30 --- 23 28 42 73.5 210.5 0.6 27.1 2565 F 1 0 20 07 12 Schedule for VLBA_FD (Code Fd ) 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 28 42 73.5 210.5 0.6 27.1 -4 1 1 0 20 49 30 21 58 19 --- 00 37 42 62.3 244.4 1.7 53.9 4125 F 1 0 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: 14 Station: VLBA_FD Total bit rate: 16 Format: VLBA1:1 Bits per sample: 2 Sample rate: 2.000 Number of channels: 4 Speedup factor: 4.00 Disk used to record data. 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: 4 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 barrel=roll_off 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: 4 Station: VLBA_FD Total bit rate: 16 Format: VLBA1:1 Bits per sample: 2 Sample rate: 2.000 Number of channels: 4 Speedup factor: 4.00 Disk used to record data. 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: 14 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 barrel=roll_off 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