COVER INFORMATION Station: VLBA_BR (Code Br ) Experiment: B1524-136: a quasar with two-sided radio jets Exp. Code: bm183b Schedule Version: 1.00 Processed by SCHED version: Release of 02 July 2002 PI: Franco Mantovani Address: Istituto di Radioastronomia Via P. Gobetti, 101 I-40129 Bologna Italy Phone: +39 051 639 9377 EMAIL: fmantovani@ira.cnr.it Fax: +39 051 639 9431 Phone during observation: Observing mode: Continuum Notes: Schedule for VLBA_BR (Code Br ) Page 2 B1524-136: a quasar with two-sided radio jets 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) ---------------------------------------------------------------------------------------- --- Sun 2 Feb 2003 Day 33 --- Next scan frequencies: 8387.49 8395.49 8403.49 8411.49 8419.49 8427.49 8435.49 8443.49 Next BBC frequencies: 787.49 795.49 803.49 811.49 819.49 827.49 835.49 843.49 Next scan bandwidths: 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 09 11 52 3C273 10 01 45 34.1 133.6 -2.5 -28.9 0 1 1 0 09 11 52 09 17 50 --- 10 07 45 34.8 135.2 -2.4 -28.1 359 F 1 2391 09 19 50 1524-136 10 09 45 -3.4 107.1 -5.3 D -41.1 49 1 1 2391 09 19 50 09 57 44 --- 10 47 45 2.6 114.2 -4.7 H -38.8 0 F 1 17548 09 59 44 1524-136 10 49 45 2.9 114.5 -4.6 H -38.7 113 1 2 17548 09 59 44 10 43 36 --- 11 33 45 9.3 123.1 -3.9 -35.2 0 R 1 -2 10 45 36 1524-136 11 35 45 9.6 123.5 -3.9 -35.0 113 1 3 -2 10 45 36 11 29 29 --- 12 19 45 15.4 132.7 -3.1 -30.3 2632 F 1 17548 11 31 29 3C273 12 21 45 43.9 177.4 -0.1 -1.7 57 1 4 17548 11 31 29 11 37 27 --- 12 27 45 43.9 179.5 0.0 -0.4 359 R 1 15156 11 39 27 1524-136 12 29 45 16.6 134.9 -3.0 -29.1 59 1 4 15156 11 39 27 12 17 21 --- 13 07 45 20.7 143.6 -2.3 -24.1 2273 R 1 0 12 19 21 1524-136 13 09 45 20.9 144.1 -2.3 -23.8 114 1 5 0 12 19 21 13 03 13 --- 13 53 45 24.6 155.0 -1.6 -16.9 2632 F 1 17550 13 05 13 1524-136 13 55 45 24.8 155.5 -1.5 -16.6 114 1 6 17550 13 05 13 13 49 06 --- 14 39 45 27.1 167.1 -0.8 -8.9 2632 R 1 0 13 51 06 3C273 14 41 45 35.8 222.3 2.2 26.7 77 1 7 0 13 51 06 13 57 04 --- 14 47 45 35.1 224.0 2.3 27.6 359 F 1 2391 13 59 04 1524-136 14 49 45 27.5 169.8 -0.6 -7.0 78 1 7 2391 13 59 04 14 36 58 --- 15 27 45 28.0 180.2 0.0 0.1 2273 F 1 17548 14 38 58 1524-136 15 29 45 28.0 180.7 0.0 0.5 114 1 8 17548 14 38 58 15 22 50 --- 16 13 45 27.1 192.7 0.8 8.7 2632 R 1 -2 15 24 50 1524-136 16 15 45 27.1 193.3 0.8 9.1 114 1 9 -2 15 24 50 16 08 43 --- 16 59 45 24.7 204.8 1.5 16.8 2632 F 1 17548 Schedule for VLBA_BR (Code Br ) Page 3 B1524-136: a quasar with two-sided radio jets 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) ---------------------------------------------------------------------------------------- --- Sun 2 Feb 2003 Day 33 --- 16 10 43 3C345 17 01 45 81.0 203.6 0.3 20.4 1 1 10 17548 16 10 43 16 16 41 --- 17 07 45 80.6 210.3 0.4 26.0 359 R 1 15156 16 18 41 1524-136 17 09 45 23.9 207.4 1.7 18.4 1 1 10 15156 16 18 41 16 56 35 --- 17 47 45 20.6 216.7 2.3 24.2 2273 R 1 0 16 58 35 1524-136 17 49 45 20.4 217.1 2.4 24.5 114 1 11 0 16 58 35 17 42 27 --- 18 33 45 15.5 227.1 3.1 30.2 2632 F 1 17550 17 44 27 1524-136 18 35 45 15.2 227.5 3.1 30.5 114 1 12 17550 17 44 27 18 22 21 --- 19 13 45 10.2 235.5 3.8 34.5 2273 R 1 2393 18 24 21 3C345 19 15 45 61.6 267.3 2.5 60.2 11 1 12 2393 18 24 21 18 30 19 --- 19 21 45 60.6 268.5 2.6 60.3 359 R 1 2 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: /home/filehost/cwalker/sched/setups/v4cm-128-8-1-R.set Matches group v4cm_3 in /home/filehost/cwalker/sched/catalogs/freq.dat Setup group: 1 Station: VLBA Total bit rate: 128 Format: VLBA1:4 Bits per sample: 1 Sample rate: 16.000 Number of channels: 8 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= 7600.00 7600.00 7600.00 7600.00 7600.00 7600.00 7600.00 7600.00 Net SB= U U U U U U U U Pol. = RCP RCP RCP RCP RCP RCP RCP RCP BBC = 1 2 3 4 5 6 7 8 BBC SB= U U U U U U U U IF = B B B B B B B B VLBA FE= omit 4cm omit 4cm VLBA Synth= 7.6 15.4 15.4 The following frequency sets based on this setup were used. Frequency Set: 1 Setup file default. Used pcal sets: 1 LO sum= 8387.49 8395.49 8403.49 8411.49 8419.49 8427.49 8435.49 8443.49 BBC fr= 787.49 795.49 803.49 811.49 819.49 827.49 835.49 843.49 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 = 1MHZ PCALXB1= S1 S3 S5 S7 S1 S3 S5 S7 PCALXB2= S2 S4 S6 S8 S2 S4 S6 S8 PCALFR1= 510 510 510 510 6510 6510 6510 6510 PCALFR2= 510 510 510 510 6510 6510 6510 6510 Track assignments are: track1= 2, 10, 18, 26, 3, 11, 19, 27 barrel=roll_auto SOURCE LIST -- B1524-136: a quasar with two-sided radio jets 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) * 3C273 12 26 33.245804 * 12 29 06.699700 12 29 16.069603 02 19 43.30550 * 02 03 08.59800 02 02 05.95182 From catalog imbedded in main SCHED input file. * 1524-136 15 24 12.880517 * 15 26 59.450000 15 27 08.515325 -13 40 34.86530 *-13 51 00.10000 -13 51 38.80379 From catalog imbedded in main SCHED input file. * 3C345 16 41 17.606162 * 16 42 58.809900 16 43 03.690592 39 54 10.81394 * 39 48 36.99300 39 47 59.39452 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) 3C273 127.2 1524-136 80.4 3C345 82.8 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