COVER INFORMATION Station: VLA1 (Code Y ) 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 VLA1 (Code Y ) 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: 652.41 644.41 636.41 628.41 620.41 612.41 604.41 596.41 Next scan bandwidths: 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 08 25 59 1524-136 10 04 02 -0.3 106.6 -5.4 D -54.8 0 1 1 0 08 25 59 09 09 52 --- 10 48 01 8.3 113.0 -4.7 -51.8 0 F 1 17550 09 11 52 3C273 10 50 02 50.5 138.8 -1.7 -33.1 -22 1 2 17550 09 11 52 09 17 50 --- 10 56 01 51.3 140.8 -1.6 -31.6 337 R 1 15158 09 19 50 1524-136 10 58 02 10.2 114.5 -4.5 -50.9 -18 1 2 15158 09 19 50 09 57 44 --- 11 36 01 17.1 120.7 -3.9 -47.2 2255 R 1 2 09 59 44 1524-136 11 38 02 17.5 121.1 -3.8 -46.9 104 1 3 2 09 59 44 10 43 36 --- 12 22 01 24.9 129.3 -3.1 -41.3 2632 F 1 17552 10 45 36 1524-136 12 24 02 25.3 129.7 -3.1 -41.0 104 1 4 17552 10 45 36 11 29 29 --- 13 08 01 31.8 139.4 -2.3 -33.8 2632 R 1 2 11 31 29 3C273 13 10 02 56.6 198.7 0.7 15.4 16 1 5 2 11 31 29 11 37 27 --- 13 16 01 56.1 201.3 0.8 17.5 359 F 1 2393 11 39 27 1524-136 13 18 02 33.1 141.8 -2.2 -31.9 16 1 5 2393 11 39 27 12 17 21 --- 13 56 01 37.4 151.8 -1.5 -23.8 2273 F 1 17550 12 19 21 1524-136 13 58 02 37.6 152.3 -1.5 -23.3 104 1 6 17550 12 19 21 13 03 13 --- 14 42 01 40.9 165.5 -0.8 -12.4 2632 R 1 0 13 05 13 1524-136 14 44 02 41.0 166.1 -0.7 -11.8 104 1 7 0 13 05 13 13 49 06 --- 15 28 01 42.1 180.3 0.0 0.2 2632 F 1 17550 13 51 06 3C273 15 30 02 37.1 242.7 3.0 47.5 11 1 8 17550 13 51 06 13 57 04 --- 15 36 01 36.0 244.0 3.1 48.2 359 R 1 15159 13 59 04 1524-136 15 38 02 42.0 183.6 0.2 3.0 14 1 8 15159 13 59 04 14 36 58 --- 16 16 01 40.7 195.7 0.8 13.4 2273 R 1 2 14 38 58 1524-136 16 18 02 40.6 196.3 0.8 13.9 104 1 9 2 14 38 58 15 22 50 --- 17 02 01 37.0 209.3 1.6 24.7 2632 F 1 17552 Schedule for VLA1 (Code Y ) 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 --- 15 24 50 1524-136 17 04 02 36.8 209.8 1.6 25.1 104 1 10 17552 15 24 50 16 08 43 --- 17 48 01 31.5 221.1 2.3 34.1 2632 R 1 2 16 10 43 3C345 17 50 02 75.5 298.1 1.1 107.9 -27 1 11 2 16 10 43 16 16 41 --- 17 56 01 74.4 296.8 1.2 105.7 332 F 1 2393 16 18 41 1524-136 17 58 02 30.1 223.4 2.5 35.9 -28 1 11 2393 16 18 41 16 56 35 --- 18 36 01 24.3 231.4 3.1 41.8 2246 F 1 17550 16 58 35 1524-136 18 38 02 24.0 231.8 3.2 42.1 104 1 12 17550 16 58 35 17 42 27 --- 19 22 01 16.5 239.9 3.9 47.6 2632 R 1 0 17 44 27 1524-136 19 24 02 16.1 240.2 3.9 47.8 104 1 13 0 17 44 27 18 22 21 --- 20 02 01 9.1 246.4 4.6 51.4 2273 F 1 15156 18 24 21 3C345 20 04 02 50.0 293.3 3.3 81.8 -18 1 13 15156 18 24 21 18 30 19 --- 20 10 01 48.8 293.6 3.4 81.1 341 F 1 17548 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 y_vx in /home/filehost/cwalker/sched/catalogs/freq.dat In VA mode, only IFs A and D are phased. ****** Only 50.00 of 64.00 MHz total bandwidth is within the IFs in the setup file before any FREQ or DOPPLER shifts. Setup group: 2 Station: VLA1 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= 9039.90 9039.90 9039.90 9039.90 9039.90 9039.90 9039.90 9039.90 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= L L L L L L L L IF = A A A A A A A A The following frequency sets based on this setup were used. Frequency Set: 2 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= 652.41 644.41 636.41 628.41 620.41 612.41 604.41 596.41 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 VLA specific information: (LO and FI cards not needed. Defaults shown.) VLABAND: VX VLABW: 0000 FEFILTER: 0000 VLAFEAB: 13.00 VLAFECD: 13.00 VLAIF: SYSXIF VLASYNA: 3560.10 VLASYNB: 3560.10 VLAROT: VLBXROT FLUKEA: 100.00 FLUKEB: 200.00 FLUKESET: 0 Details for VLA IFs: LO Sum Frequency span VLBI FIRSTLO VLA IF A: 8439.9000 8439.9000- 8389.9000 9039.9000 VLA IF B: 8439.9000 8439.9000- 8389.9000 9039.9000 VLA IF C: 8439.9000 8439.9000- 8389.9000 9039.9000 VLA IF D: 8439.9000 8439.9000- 8389.9000 9039.9000 With new digital patch panel, VLA IF = VLB IF. 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