COVER INFORMATION Station: VLBA_LA (Code La ) Experiment: No description given. Exp. Code: bc120e Schedule Version: 1.00 Processed by SCHED version: Release of 02 July 2002 PI: Shami Chatterjee Address: Cornell University 515 Space Sciences Ithaca NY 14853 USA Phone: 607 255 9020 EMAIL: shami@astro.cornell.edu Fax: Phone during observation: 607 255 9020 Observing mode: Notes: The optimal observation date is Jan 22. Please try to observe within 2 weeks of this date. Schedule for VLBA_LA (Code La ) Page 2 No description given. 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) ---------------------------------------------------------------------------------------- --- Thu 23 Jan 2003 Day 23 --- Next scan frequencies: 1409.99 1409.99 1503.99 1503.99 1589.99 1589.99 1679.99 1679.99 Next BBC frequencies: 990.01 990.01 896.01 896.01 810.01 810.01 720.01 720.01 Next scan bandwidths: 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 17 31 55 J1935+2031 18 37 30 70.2 136.4 -1.0 -36.7 0 1 1 0 17 31 45 17 39 22 --- 18 44 59 71.2 140.8 -0.8 -33.2 448 F 1 6104 17 39 33 B1937+21 18 45 09 71.5 136.3 -0.9 -37.1 1 1 1 6104 17 39 22 17 41 32 --- 18 47 09 71.8 137.5 -0.9 -36.1 120 F 1 7834 17 41 44 J1946+2300 18 47 21 71.9 131.0 -1.0 -41.7 2 1 1 7834 17 41 32 17 43 14 --- 18 48 51 72.2 131.9 -1.0 -41.0 90 F 1 9189 17 43 30 J1935+2031 18 49 07 71.7 143.4 -0.8 -31.1 3 1 1 9189 17 43 14 17 45 00 --- 18 50 37 71.9 144.3 -0.7 -30.4 90 F 1 10606 17 45 10 B1937+21 18 50 48 72.2 139.7 -0.8 -34.3 1 1 1 10606 17 45 00 17 47 10 --- 18 52 48 72.5 141.0 -0.8 -33.3 120 F 1 12340 17 47 22 J1946+2300 18 53 00 72.8 134.3 -0.9 -39.1 2 1 1 12340 17 47 10 17 48 52 --- 18 54 30 73.0 135.2 -0.9 -38.4 90 F 1 13700 17 49 09 J1935+2031 18 54 47 72.4 147.1 -0.7 -28.1 3 1 1 13700 17 48 52 17 50 39 --- 18 56 17 72.5 148.1 -0.6 -27.2 90 F 1 15128 17 50 50 B1937+21 18 56 28 73.0 143.5 -0.7 -31.3 1 1 1 15128 17 50 39 17 52 49 --- 18 58 28 73.2 144.8 -0.7 -30.2 120 F 1 16865 17 53 02 J1946+2300 18 58 41 73.6 137.9 -0.8 -36.2 2 1 2 16865 17 52 49 17 54 32 --- 19 00 11 73.8 138.9 -0.8 -35.4 90 R 1 16968 17 54 50 J1935+2031 19 00 29 73.0 151.1 -0.6 -24.7 4 1 2 16968 17 54 32 17 56 20 --- 19 01 59 73.1 152.2 -0.6 -23.8 90 R 1 15531 17 56 31 B1937+21 19 02 10 73.6 147.5 -0.6 -28.0 2 1 2 15531 17 56 20 17 58 30 --- 19 04 10 73.8 148.9 -0.6 -26.8 120 R 1 13792 17 58 43 J1946+2300 19 04 23 74.3 141.8 -0.7 -33.0 2 1 2 13792 17 58 30 18 00 13 --- 19 05 53 74.5 142.9 -0.7 -32.1 90 R 1 12419 Schedule for VLBA_LA (Code La ) Page 3 No description given. 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) ---------------------------------------------------------------------------------------- --- Thu 23 Jan 2003 Day 23 --- 18 00 32 J1935+2031 19 06 12 73.5 155.4 -0.5 -21.2 4 1 2 12419 18 00 13 18 02 02 --- 19 07 42 73.6 156.5 -0.5 -20.2 90 R 1 10972 18 02 13 B1937+21 19 07 53 74.2 151.8 -0.5 -24.4 2 1 2 10972 18 02 02 18 04 12 --- 19 09 53 74.4 153.3 -0.5 -23.1 120 R 1 9232 18 04 26 J1946+2300 19 10 06 75.0 146.0 -0.6 -29.5 3 1 2 9232 18 04 12 18 05 56 --- 19 11 36 75.2 147.2 -0.6 -28.5 90 R 1 7853 18 06 15 J1935+2031 19 11 55 73.9 159.9 -0.4 -17.3 5 1 2 7853 18 05 56 18 07 45 --- 19 13 25 74.0 161.1 -0.4 -16.3 90 R 1 6401 18 07 55 B1937+21 19 13 36 74.7 156.3 -0.4 -20.5 2 1 2 6401 18 07 45 18 09 55 --- 19 15 36 74.9 158.0 -0.4 -19.1 120 R 1 4661 18 10 09 J1946+2300 19 15 50 75.6 150.7 -0.5 -25.6 3 1 2 4661 18 09 55 18 11 39 --- 19 17 20 75.8 151.9 -0.5 -24.5 90 R 1 3279 18 11 58 J1935+2031 19 17 40 74.3 164.6 -0.3 -13.3 5 1 2 3279 18 11 39 18 13 28 --- 19 19 10 74.4 165.9 -0.3 -12.2 90 R 1 1825 18 13 38 B1937+21 19 19 20 75.1 161.2 -0.3 -16.3 2 1 2 1825 18 13 28 18 15 38 --- 19 21 20 75.3 163.0 -0.3 -14.8 120 R 1 87 18 15 52 J1946+2300 19 21 34 76.2 155.6 -0.4 -21.3 3 1 3 87 18 15 38 18 17 22 --- 19 23 04 76.3 157.0 -0.4 -20.2 90 F 1 1469 18 17 41 J1935+2031 19 23 23 74.5 169.5 -0.2 -9.1 5 1 3 1469 18 17 22 18 19 10 --- 19 24 53 74.6 170.8 -0.2 -8.0 90 F 1 2918 18 19 21 B1937+21 19 25 03 75.5 166.3 -0.2 -11.9 1 1 3 2918 18 19 10 18 21 20 --- 19 27 03 75.5 168.1 -0.2 -10.4 120 F 1 4651 18 21 34 J1946+2300 19 27 17 76.6 160.9 -0.3 -16.8 3 1 3 4651 18 21 20 18 23 04 --- 19 28 47 76.7 162.3 -0.3 -15.5 90 F 1 6028 18 23 22 J1935+2031 19 29 05 74.7 174.5 -0.1 -4.8 4 1 3 6028 18 23 04 18 24 51 --- 19 30 35 74.7 175.8 -0.1 -3.6 90 F 1 7465 18 25 02 B1937+21 19 30 45 75.7 171.5 -0.1 -7.4 1 1 3 7465 18 24 51 18 27 01 --- 19 32 45 75.7 173.4 -0.1 -5.8 120 F 1 9197 Schedule for VLBA_LA (Code La ) Page 4 No description given. 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) ---------------------------------------------------------------------------------------- --- Thu 23 Jan 2003 Day 23 --- 18 27 14 J1946+2300 19 32 58 76.9 166.4 -0.2 -11.9 2 1 3 9197 18 27 01 18 28 44 --- 19 34 28 77.0 167.9 -0.2 -10.6 90 F 1 10564 18 29 01 J1935+2031 19 34 45 74.8 179.5 0.0 -0.4 3 1 3 10564 18 28 44 18 30 31 --- 19 36 15 74.8 180.9 0.0 0.8 90 F 1 11991 18 30 41 B1937+21 19 36 26 75.8 176.9 -0.1 -2.7 2 1 3 11991 18 30 31 18 32 41 --- 19 38 26 75.8 178.8 0.0 -1.1 120 F 1 13723 18 32 53 J1946+2300 19 38 38 77.1 172.2 -0.1 -6.9 2 1 3 13723 18 32 41 18 34 23 --- 19 40 08 77.2 173.7 -0.1 -5.5 90 F 1 15089 18 34 41 J1935+2031 19 40 26 74.7 184.6 0.1 4.0 4 1 3 15089 18 34 23 18 36 10 --- 19 41 56 74.7 185.9 0.1 5.1 90 F 1 16519 18 36 21 B1937+21 19 42 06 75.8 182.2 0.0 2.0 2 1 4 16519 18 36 10 18 38 20 --- 19 44 06 75.8 184.1 0.1 3.6 120 R 1 16948 18 38 33 J1946+2300 19 44 19 77.2 178.0 0.0 -1.7 3 1 4 16948 18 38 20 18 40 03 --- 19 45 49 77.2 179.6 0.0 -0.3 90 R 1 15580 18 40 21 J1935+2031 19 46 07 74.6 189.6 0.2 8.3 5 1 4 15580 18 40 03 18 41 50 --- 19 47 37 74.5 190.9 0.2 9.4 90 R 1 14150 18 42 00 B1937+21 19 47 47 75.7 187.6 0.1 6.6 2 1 4 14150 18 41 50 18 44 00 --- 19 49 47 75.6 189.5 0.2 8.2 120 R 1 12419 18 44 13 J1946+2300 19 50 00 77.2 184.0 0.1 3.5 3 1 4 12419 18 44 00 18 45 43 --- 19 51 30 77.2 185.5 0.1 4.8 90 R 1 11051 18 46 00 J1935+2031 19 51 47 74.3 194.5 0.3 12.5 5 1 4 11051 18 45 43 18 47 30 --- 19 53 17 74.3 195.7 0.3 13.6 90 R 1 9624 18 47 40 B1937+21 19 53 27 75.5 192.8 0.2 11.2 1 1 4 9624 18 47 30 18 49 39 --- 19 55 27 75.4 194.6 0.3 12.7 120 R 1 7896 18 49 52 J1946+2300 19 55 40 77.1 189.8 0.2 8.6 3 1 4 7896 18 49 39 18 51 22 --- 19 57 10 77.0 191.3 0.2 9.9 90 R 1 6532 18 51 38 J1935+2031 19 57 26 74.0 199.2 0.4 16.5 5 1 4 6532 18 51 22 18 53 08 --- 19 58 56 73.9 200.4 0.4 17.6 90 R 1 5112 Schedule for VLBA_LA (Code La ) Page 5 No description given. 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) ---------------------------------------------------------------------------------------- --- Thu 23 Jan 2003 Day 23 --- 18 53 18 B1937+21 19 59 06 75.2 197.9 0.3 15.5 1 1 4 5112 18 53 08 18 55 17 --- 20 01 06 75.1 199.6 0.4 17.0 120 R 1 3389 18 55 29 J1946+2300 20 01 18 76.8 195.4 0.3 13.6 3 1 4 3389 18 55 17 18 56 59 --- 20 02 48 76.7 196.9 0.3 14.8 90 R 1 2031 18 57 15 J1935+2031 20 03 04 73.6 203.6 0.5 20.3 3 1 4 2031 18 56 59 18 58 45 --- 20 04 34 73.5 204.8 0.5 21.3 90 R 1 624 18 58 54 B1937+21 20 04 43 74.8 202.7 0.4 19.7 0 1 5 624 18 58 45 19 00 53 --- 20 06 43 74.6 204.3 0.4 21.1 120 F 1 1093 19 01 05 J1946+2300 20 06 55 76.5 200.8 0.3 18.2 2 1 5 1093 19 00 53 19 02 35 --- 20 08 25 76.4 202.2 0.4 19.4 90 F 1 2442 19 02 49 J1935+2031 20 08 39 73.1 207.9 0.6 23.9 2 1 5 2442 19 02 35 19 04 19 --- 20 10 09 73.0 209.0 0.6 24.8 90 F 1 3832 19 04 28 B1937+21 20 10 18 74.3 207.2 0.5 23.5 0 1 5 3832 19 04 19 19 06 28 --- 20 12 18 74.1 208.8 0.5 24.8 120 F 1 5547 19 06 38 J1946+2300 20 12 29 76.0 205.8 0.4 22.6 1 1 5 5547 19 06 28 19 08 08 --- 20 13 59 75.9 207.1 0.5 23.7 90 F 1 6885 19 08 21 J1935+2031 20 14 12 72.5 211.8 0.6 27.2 1 1 5 6885 19 08 08 19 09 51 --- 20 15 42 72.4 212.9 0.7 28.0 90 F 1 8261 19 10 00 B1937+21 20 15 51 73.8 211.5 0.6 27.1 0 1 5 8261 19 09 51 19 12 00 --- 20 17 51 73.6 212.9 0.6 28.3 120 F 1 9975 19 12 10 J1946+2300 20 18 01 75.5 210.6 0.5 26.6 0 1 5 9975 19 12 00 19 13 40 --- 20 19 31 75.3 211.8 0.6 27.7 90 F 1 11309 19 13 53 J1935+2031 20 19 45 71.9 215.6 0.7 30.3 0 1 5 11309 19 13 40 19 15 23 --- 20 21 15 71.7 216.5 0.8 31.0 90 F 1 12681 19 15 31 B1937+21 20 21 24 73.2 215.4 0.7 30.4 0 1 5 12681 19 15 23 19 17 31 --- 20 23 24 72.9 216.8 0.7 31.5 120 F 1 14395 19 17 41 J1946+2300 20 23 34 74.9 214.9 0.6 30.3 0 1 5 14395 19 17 31 19 19 11 --- 20 25 04 74.7 216.1 0.6 31.3 90 F 1 15726 Schedule for VLBA_LA (Code La ) Page 6 No description given. 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) ---------------------------------------------------------------------------------------- --- Thu 23 Jan 2003 Day 23 --- 19 19 24 J1935+2031 20 25 17 71.2 219.1 0.8 33.1 0 1 5 15726 19 19 11 19 20 54 --- 20 26 47 71.0 220.0 0.9 33.8 90 F 1 17098 19 21 03 B1937+21 20 26 56 72.5 219.1 0.8 33.4 0 1 6 17098 19 20 54 19 23 02 --- 20 28 56 72.2 220.4 0.8 34.4 120 R 1 16387 19 23 13 J1946+2300 20 29 06 74.2 219.0 0.7 33.7 0 1 6 16387 19 23 02 19 24 42 --- 20 30 36 74.0 220.0 0.7 34.5 90 R 1 15056 19 24 55 J1935+2031 20 30 49 70.5 222.3 0.9 35.7 0 1 6 15056 19 24 42 19 26 25 --- 20 32 19 70.3 223.2 1.0 36.3 90 R 1 13684 19 26 34 B1937+21 20 32 28 71.7 222.6 0.9 36.2 0 1 6 13684 19 26 25 19 28 34 --- 20 34 28 71.5 223.8 0.9 37.1 120 R 1 11970 19 28 44 J1946+2300 20 34 38 73.5 222.7 0.8 36.7 0 1 6 11970 19 28 34 19 30 14 --- 20 36 08 73.3 223.7 0.8 37.5 90 R 1 10639 19 30 27 J1935+2031 20 36 21 69.7 225.4 1.0 38.1 0 1 6 10639 19 30 14 19 31 56 --- 20 37 51 69.5 226.2 1.0 38.7 90 R 1 9267 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: v18cm-256-8-2-psrvlb.set Matches group v20cm_2 in /home/filehost/cwalker/sched/catalogs/freq.dat FD filtered above 1760. SC filtered above 1740. Setup group: 1 Station: VLBA Total bit rate: 256 Format: VLBA1:2 Bits per sample: 2 Sample rate: 16.000 Number of channels: 8 Passes/head pos: 1 Speedup factor: 1.00 Tape speeds: Low density - 266.660 ips, High density - 160.00 ips Time per pass for 17600 ft, High density tapes is: 00:22:00 1st LO= 2400.00 2400.00 2400.00 2400.00 2400.00 2400.00 2400.00 2400.00 Net SB= U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 2 3 4 5 6 7 8 BBC SB= L L L L L L L L IF = A C A C A C A C 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: 1 Setup file default. Used pcal sets: 1 LO sum= 1409.99 1409.99 1503.99 1503.99 1589.99 1589.99 1679.99 1679.99 BBC fr= 990.01 990.01 896.01 896.01 810.01 810.01 720.01 720.01 Bandwd= 8.000 8.000 8.000 8.000 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 S5 S6 S7 S8 PCALXB2= M1 M2 M3 M4 M5 M6 M7 M8 PCALFR1= 0 0 0 0 0 0 0 0 PCALFR2= 0 0 0 0 0 0 0 0 Track assignments are: track1= 2, 10, 18, 26, 3, 11, 19, 27 barrel=roll_auto SOURCE LIST -- No description given. 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). Source Source position (RA/Dec) (B1950) (J2000) (Date) * B1937+21 19 37 28.745922 * 19 39 38.584064 19 39 44.299552 21 28 00.96119 * 21 34 58.76843 21 35 13.92795 From catalog imbedded in main SCHED input file. * J1935+2031 19 32 59.558226 * 19 35 10.472879 19 35 16.265244 20 25 14.21753 * 20 31 54.15430 20 32 08.16312 From catalog imbedded in main SCHED input file. * J1946+2300 19 43 57.820616 * 19 46 06.251974 19 46 11.865376 22 52 41.05335 * 23 00 04.41105 23 00 21.24729 From catalog imbedded in main SCHED input file. 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) B1937+21 42.3 J1935+2031 41.6 J1946+2300 43.3 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