COVER INFORMATION Station: VLBA_OV (Code Ov ) Experiment: B1524-136: a quasar with two-sided radio jets Exp. Code: bm183a 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_OV (Code Ov ) 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) ---------------------------------------------------------------------------------------- --- Wed 29 Jan 2003 Day 29 --- Next scan frequencies: 4960.49 4968.49 4976.49 4984.49 4992.49 5000.49 5008.49 5016.49 Next BBC frequencies: 860.49 868.49 876.49 884.49 892.49 900.49 908.49 916.49 Next scan bandwidths: 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 09 27 35 3C273 10 07 22 42.0 128.7 -2.4 -38.5 0 1 1 0 09 27 35 09 33 34 --- 10 13 22 42.9 130.3 -2.3 -37.4 359 F 1 2391 09 35 34 1524-136 10 15 22 0.9 108.3 -5.2 D -51.1 33 1 1 2391 09 35 34 10 13 27 --- 10 53 22 8.0 114.2 -4.6 -48.4 0 F 1 17548 10 15 27 1524-136 10 55 22 8.4 114.6 -4.5 -48.2 113 1 2 17548 10 15 27 10 59 20 --- 11 39 22 16.1 122.1 -3.8 -44.0 2632 R 1 -2 11 01 20 1524-136 11 41 22 16.4 122.5 -3.8 -43.8 113 1 3 -2 11 01 20 11 45 12 --- 12 25 22 23.4 131.1 -3.0 -38.2 2632 F 1 17548 11 47 12 3C273 12 27 22 54.8 179.2 0.0 -0.7 51 1 4 17548 11 47 12 11 53 11 --- 12 33 22 54.8 181.8 0.1 1.4 359 R 1 15156 11 55 11 1524-136 12 35 22 24.9 133.2 -2.9 -36.7 54 1 4 15156 11 55 11 12 33 04 --- 13 13 22 30.0 141.8 -2.2 -30.4 2273 R 1 0 12 35 04 1524-136 13 15 22 30.3 142.3 -2.2 -30.1 114 1 5 0 12 35 04 13 18 57 --- 13 59 22 34.9 153.7 -1.5 -21.3 2632 F 1 17550 13 20 57 1524-136 14 01 22 35.1 154.3 -1.4 -20.8 114 1 6 17550 13 20 57 14 04 49 --- 14 45 22 38.0 167.1 -0.7 -10.5 2632 R 1 0 14 06 49 3C273 14 47 22 42.6 230.3 2.3 37.8 72 1 7 0 14 06 49 14 12 48 --- 14 53 22 41.7 231.9 2.4 38.8 359 F 1 2391 14 14 48 1524-136 14 55 22 38.4 170.1 -0.5 -8.1 73 1 7 2391 14 14 48 14 52 41 --- 15 33 22 38.9 181.9 0.1 1.6 2273 F 1 17548 14 54 41 1524-136 15 35 22 38.9 182.6 0.1 2.1 114 1 8 17548 14 54 41 15 38 34 --- 16 19 22 37.5 196.0 0.9 13.1 2632 R 1 -2 15 40 34 1524-136 16 21 22 37.3 196.6 0.9 13.6 114 1 9 -2 15 40 34 16 24 26 --- 17 05 22 33.9 209.1 1.6 23.5 2632 F 1 17548 Schedule for VLBA_OV (Code Ov ) 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) ---------------------------------------------------------------------------------------- --- Wed 29 Jan 2003 Day 29 --- 16 26 26 3C345 17 07 22 84.6 300.2 0.4 116.5 13 1 10 17548 16 26 26 16 32 25 --- 17 13 22 83.5 295.8 0.5 111.0 359 R 1 15156 16 34 25 1524-136 17 15 22 32.9 211.7 1.8 25.6 13 1 10 15156 16 34 25 17 12 19 --- 17 53 22 28.4 221.1 2.4 32.6 2273 R 1 0 17 14 19 1524-136 17 55 22 28.2 221.6 2.5 33.0 113 1 11 0 17 14 19 17 58 11 --- 18 39 22 21.8 231.1 3.2 39.6 2632 F 1 17550 18 00 11 1524-136 18 41 22 21.5 231.5 3.2 39.9 113 1 12 17550 18 00 11 18 38 04 --- 19 19 22 15.3 238.7 3.9 44.5 2273 R 1 2393 18 40 04 3C345 19 21 22 59.2 287.2 2.6 81.9 26 1 12 2393 18 40 04 18 46 03 --- 19 27 22 58.0 287.5 2.7 81.2 359 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/v6cm-128-8-1-L.set Matches group v6cm_2 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= 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 Net SB= U U U U U U U U Pol. = LCP LCP LCP LCP LCP LCP LCP LCP BBC = 1 2 3 4 5 6 7 8 BBC SB= U U U U U U U U IF = C C C C C C C C VLBA FE= 6cm omit 6cm omit VLBA Synth= 15.4 4.1 15.4 The following frequency sets based on this setup were used. Frequency Set: 1 Setup file default. Used pcal sets: 1 LO sum= 4960.49 4968.49 4976.49 4984.49 4992.49 5000.49 5008.49 5016.49 BBC fr= 860.49 868.49 876.49 884.49 892.49 900.49 908.49 916.49 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 15.940471 02 19 43.30550 * 02 03 08.59800 02 02 06.73809 From catalog imbedded in main SCHED input file. * 1524-136 15 24 12.880517 * 15 26 59.450000 15 27 08.364944 -13 40 34.86530 *-13 51 00.10000 -13 51 38.02456 From catalog imbedded in main SCHED input file. * 3C345 16 41 17.606162 * 16 42 58.809900 16 43 03.543725 39 54 10.81394 * 39 48 36.99300 39 48 00.47697 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 123.2 1524-136 76.4 3C345 80.9 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