COVER INFORMATION Station: VLBA_MK (Code Mk ) 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_MK (Code Mk ) 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 09 10 39 30.8 65.6 -4.3 -83.9 0 1 1 0 09 59 17 10 31 11 --- 09 42 39 37.7 66.2 -3.8 -87.6 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 09 42 39 37.7 66.2 -3.8 -87.6 -4 1 1 6383 10 31 11 11 05 06 --- 10 16 39 45.0 66.3 -3.2 -91.9 2030 F 1 13164 10 31 11 11 05 06 3C345_N 10 16 39 7.7 50.4 -6.4 -70.6 -81 1 2 13164 11 05 06 11 31 02 --- 10 42 39 12.4 51.9 -6.0 -74.5 1475 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 10 42 39 12.4 51.9 -6.0 -74.5 -4 1 2 16850 11 31 02 11 56 57 --- 11 08 39 17.3 53.1 -5.6 -78.3 1552 R 1 11664 11 31 02 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 12 05 39 3.0 105.1 -5.5 -68.9 3370 1 2 11664 12 53 48 13 01 47 --- 12 13 39 4.8 105.8 -5.3 -68.4 479 R 1 10069 12 54 13 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 12 54 39 14.0 109.7 -4.6 -65.4 2429 1 2 10069 13 42 40 13 47 39 --- 12 59 39 15.1 110.3 -4.6 -65.0 299 R 1 9072 13 43 05 Schedule for VLBA_MK (Code Mk ) 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 --- 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 12 59 39 15.1 110.3 -4.6 -65.0 -4 1 2 9072 13 47 39 13 55 38 --- 13 07 39 16.8 111.1 -4.4 -64.3 475 R 1 7476 13 47 39 13 55 38 3C286_N 13 07 39 78.1 25.6 -0.4 -151.9 -128 1 2 7476 13 55 38 14 21 34 --- 13 33 39 79.3 -2.6 0.0 177.2 1427 R 1 2290 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 13 33 39 79.3 -2.6 0.0 177.2 -4 1 1 2290 14 21 34 14 47 29 --- 13 59 39 77.6 -29.5 0.5 147.5 1552 F 2 2896 14 21 34 14 47 29 J1733_W 13 59 39 28.0 117.6 -3.6 -58.8 -105 1 1 2896 14 47 29 14 52 28 --- 14 04 39 29.0 118.4 -3.5 -58.2 194 F 2 3893 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 14 04 39 29.0 118.4 -3.5 -58.2 -4 1 1 3893 14 52 28 15 00 27 --- 14 12 39 30.7 119.6 -3.3 -57.2 475 F 2 5489 14 52 28 15 02 27 OH17.7-2.0 14 14 39 18.3 113.5 -4.3 -63.0 89 1 1 5489 15 02 27 15 15 25 --- 14 27 39 21.1 115.1 -4.1 -61.7 778 F 2 8082 15 02 52 15 15 25 OH17.7-2.0 14 27 39 21.1 115.1 -4.1 -61.7 -4 1 1 8082 15 15 25 15 28 23 --- 14 40 39 23.8 116.7 -3.8 -60.2 774 F 2 10674 15 15 25 15 28 23 OH17.7-2.0 14 40 39 23.8 116.7 -3.8 -60.2 -4 1 1 10674 15 28 23 15 41 20 --- 14 53 39 26.5 118.5 -3.6 -58.7 774 F 2 13267 15 28 23 Schedule for VLBA_MK (Code Mk ) 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 --- 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 14 53 39 38.8 126.7 -2.7 -50.8 -30 1 1 13267 15 41 20 15 46 20 --- 14 58 39 39.7 127.7 -2.6 -49.8 269 F 2 14265 15 41 20 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 14 58 39 39.7 127.7 -2.6 -49.8 -4 1 1 14265 15 46 20 15 54 18 --- 15 06 39 41.2 129.4 -2.4 -48.3 475 F 2 15860 15 46 20 15 54 18 OH17.7-2.0 15 06 39 29.2 120.4 -3.4 -57.0 -30 1 2 15860 15 54 18 16 07 16 --- 15 19 39 31.8 122.4 -3.2 -55.1 748 R 2 16747 15 54 18 16 07 16 OH17.7-2.0 15 19 39 31.8 122.4 -3.2 -55.1 -4 1 2 16747 16 07 16 16 20 14 --- 15 32 39 34.4 124.6 -3.0 -53.1 774 R 2 14154 16 07 16 16 20 14 OH17.7-2.0 15 32 39 34.4 124.6 -3.0 -53.1 -4 1 2 14154 16 20 14 16 33 12 --- 15 45 39 36.8 127.0 -2.8 -50.9 774 R 2 11561 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 15 45 39 47.8 139.0 -1.8 -39.3 -28 1 2 11561 16 33 12 16 38 11 --- 15 50 39 48.5 140.4 -1.7 -38.0 271 R 2 10564 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 15 50 39 48.5 140.4 -1.7 -38.0 -4 1 2 10564 16 38 11 16 46 10 --- 15 58 39 49.7 142.8 -1.6 -35.7 475 R 2 8968 16 38 11 16 48 09 OH17.7-2.0 16 00 39 39.6 130.0 -2.5 -48.1 94 1 2 8968 16 48 09 17 01 07 --- 16 13 39 41.9 132.9 -2.3 -45.4 778 R 2 6375 16 48 34 Schedule for VLBA_MK (Code Mk ) 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 --- 17 01 07 OH17.7-2.0 16 13 39 41.9 132.9 -2.3 -45.4 -4 1 2 6375 17 01 07 17 14 05 --- 16 26 39 44.1 136.0 -2.1 -42.5 774 R 2 3782 17 01 07 17 14 05 OH17.7-2.0 16 26 39 44.1 136.0 -2.1 -42.5 -4 1 2 3782 17 14 05 17 27 03 --- 16 39 39 46.1 139.3 -1.9 -39.3 774 R 2 1189 17 14 05 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 16 39 39 54.6 157.0 -0.9 -22.1 -23 1 2 1189 17 27 03 17 32 02 --- 16 44 39 55.0 159.0 -0.8 -20.2 276 R 2 192 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 16 44 39 55.0 159.0 -0.8 -20.2 -4 1 1 192 17 32 02 17 40 01 --- 16 52 39 55.6 162.2 -0.7 -17.1 475 F 3 1788 17 32 02 17 40 01 OH17.7-2.0 16 52 39 48.1 143.0 -1.6 -35.8 -21 1 1 1788 17 40 01 17 52 59 --- 17 05 39 49.8 147.0 -1.4 -32.0 757 F 3 4381 17 40 01 17 52 59 OH17.7-2.0 17 05 39 49.8 147.0 -1.4 -32.0 -4 1 1 4381 17 52 59 18 05 57 --- 17 18 39 51.4 151.3 -1.2 -27.8 774 F 3 6974 17 52 59 18 05 57 OH17.7-2.0 17 18 39 51.4 151.3 -1.2 -27.8 -4 1 1 6974 18 05 57 18 18 55 --- 17 31 39 52.8 155.9 -1.0 -23.4 774 F 3 9567 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 17 31 39 57.1 179.2 0.0 -0.7 -22 1 1 9567 18 18 55 18 23 54 --- 17 36 39 57.1 181.5 0.1 1.4 278 F 3 10564 18 18 55 Schedule for VLBA_MK (Code Mk ) 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: 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 17 36 39 57.1 181.5 0.1 1.4 -4 1 1 10564 18 23 54 18 31 52 --- 17 44 39 57.0 185.0 0.2 4.9 475 F 3 12159 18 23 54 18 33 52 OH17.7-2.0 17 46 39 54.0 161.6 -0.7 -17.9 98 1 1 12159 18 33 52 18 46 50 --- 17 59 39 54.9 166.8 -0.5 -12.8 778 F 3 14752 18 34 17 18 46 50 OH17.7-2.0 17 59 39 54.9 166.8 -0.5 -12.8 -4 1 1 14752 18 46 50 18 59 48 --- 18 12 39 55.4 172.2 -0.3 -7.6 774 F 3 17345 18 46 50 18 59 48 OH17.7-2.0 18 12 39 55.4 172.2 -0.3 -7.6 -4 1 2 17345 18 59 48 19 12 46 --- 18 25 39 55.7 177.8 -0.1 -2.2 774 R 3 14752 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 18 25 39 54.7 202.4 0.9 21.6 -22 1 2 14752 19 12 46 19 17 45 --- 18 30 39 54.2 204.3 1.0 23.5 277 R 3 13755 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 18 30 39 54.2 204.3 1.0 23.5 -4 1 2 13755 19 17 45 19 25 44 --- 18 38 39 53.4 207.3 1.1 26.3 475 R 3 12159 19 17 45 19 25 44 OH17.7-2.0 18 38 39 55.7 183.4 0.1 3.3 -22 1 2 12159 19 25 44 19 38 41 --- 18 51 39 55.3 188.9 0.3 8.6 756 R 3 9567 19 25 44 19 38 41 OH17.7-2.0 18 51 39 55.3 188.9 0.3 8.6 -4 1 2 9567 19 38 41 19 51 39 --- 19 04 39 54.7 194.3 0.6 13.9 774 R 3 6974 19 38 41 19 51 39 OH17.7-2.0 19 04 39 54.7 194.3 0.6 13.9 -4 1 2 6974 19 51 39 20 04 37 --- 19 17 39 53.8 199.4 0.8 18.9 774 R 3 4381 19 51 39 Schedule for VLBA_MK (Code Mk ) 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 --- 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 19 19 39 39.1 84.9 -3.6 -77.4 37 1 1 4381 20 06 37 20 49 30 --- 20 02 39 49.1 87.9 -2.9 -78.2 2573 F 4 4196 20 07 02 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 20 02 39 49.1 87.9 -2.9 -78.2 -4 1 2 4196 20 49 30 21 58 19 --- 21 11 39 65.4 94.3 -1.7 -77.7 4125 R 4 17242 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: 20 Station: VLBA_MK 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: 10 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: 10 Station: VLBA_MK 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: 20 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