COVER INFORMATION Station: SHANGHAI (Code Sh ) Experiment: B1030+074 18 cm Exp. Code: GX007a Schedule Version: 4.00 Processed by SCHED version: Release of 12 Jan. 2001 PI: Emily Xanthopoulos Address: Jodrell Bank Macclesfield, Cheshire SK11, 9DL United Kingdom Phone: +44 1477 571321 EMAIL: emily@jb.man.ac.uk Fax: +44 1477- 571618 Phone during observation: +44 1477 571321 Observing mode: Continuum Notes: VLA: Do not use antennas north of station BN9=N36 using 2 fringe finders VLA phase ref : 1038+064, 1038+051 VLBA fringe finders : 3C345, 3C84 Schedule for SHANGHAI (Code Sh ) Page 2 B1030+074 18 cm 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. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sat 19 Feb 2000 Day 50 --- Next scan frequencies: 1650.49 1650.49 1658.49 1658.49 Next BBC frequencies: 549.51 549.51 541.51 541.51 Next scan bandwidths: 8.00 8.00 8.00 8.00 17 30 00 3C345 11 30 44 27.8 58.2 -5.2 -71.3 0 1 1 0 17 30 00 17 35 00 --- 11 35 45 28.7 58.5 -5.1 -72.0 300 F 1 2000 17 38 00 1030+074 11 38 45 61.6 215.9 1.1 30.4 -137 1 1 2000 17 38 00 17 52 00 --- 11 52 48 59.8 221.9 1.3 35.2 703 F 1 7600 17 55 00 1030+074 11 55 48 59.3 223.1 1.4 36.1 176 1 1 7600 17 55 00 18 09 00 --- 12 09 50 57.2 228.3 1.6 40.1 840 F 1 13200 18 12 00 1030+074 12 12 51 56.7 229.3 1.7 40.9 176 1 1 13200 18 12 00 18 23 00 --- 12 23 53 54.9 232.9 1.8 43.5 660 F 1 17600 18 45 00 1030+074 12 45 56 50.9 239.3 2.2 47.9 1305 1 2 17600 18 45 00 19 00 00 --- 13 00 59 48.1 243.0 2.5 50.3 900 R 1 11600 19 03 00 1030+074 13 03 59 47.5 243.7 2.5 50.7 176 1 2 11600 19 03 00 19 18 00 --- 13 19 02 44.6 247.1 2.8 52.6 900 R 1 5600 19 21 00 1030+074 13 22 02 44.0 247.7 2.8 53.0 176 1 2 5600 19 21 00 19 35 00 --- 13 36 04 41.2 250.5 3.0 54.4 840 R 1 0 19 57 00 1030+074 13 58 08 36.7 254.5 3.4 56.3 1303 1 3 0 19 57 00 20 12 00 --- 14 13 11 33.6 257.0 3.7 57.2 900 F 1 6000 20 15 00 1030+074 14 16 11 33.0 257.5 3.7 57.4 176 1 3 6000 20 15 00 20 30 00 --- 14 31 13 29.8 259.8 4.0 58.1 900 F 1 12000 20 33 00 1030+074 14 34 14 29.2 260.3 4.0 58.3 176 1 3 12000 20 33 00 20 47 00 --- 14 48 16 26.2 262.3 4.2 58.8 840 F 1 17600 21 09 00 1030+074 15 10 20 21.5 265.4 4.6 59.3 1302 1 4 17600 21 09 00 21 22 00 --- 15 23 22 18.7 267.1 4.8 59.5 780 R 1 12400 21 25 00 1030+074 15 26 22 18.1 267.5 4.9 59.6 176 1 4 12400 21 25 00 21 38 00 --- 15 39 25 15.3 269.2 5.1 59.7 780 R 1 7200 21 41 00 1030+074 15 42 25 14.6 269.6 5.1 59.7 176 1 4 7200 21 41 00 21 50 00 --- 15 51 27 12.7 270.8 5.3 59.7 540 R 1 3600 Schedule for SHANGHAI (Code Sh ) Page 3 B1030+074 18 cm 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. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sat 19 Feb 2000 Day 50 --- 21 53 00 1038+051 15 54 27 12.2 268.8 5.3 59.3 174 1 4 3600 21 53 00 21 56 00 --- 15 57 28 11.5 269.1 5.3 59.3 180 R 1 2400 21 59 00 1038+064 16 00 28 11.9 270.1 5.3 59.5 176 1 4 2400 21 59 00 22 02 00 --- 16 03 29 11.3 270.4 5.4 59.5 180 R 1 1200 22 05 00 1130+009 16 06 29 18.8 259.0 4.6 57.2 153 1 4 1200 22 05 00 22 08 00 --- 16 09 30 18.2 259.4 4.6 57.3 180 R 1 0 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: gx007a.18cm Matches group sh18cm in /home/vlbi/sched/catalogs/freq.dat Huang Xinyong 170300, dual pol but narrow(?) Setup group: 8 Station: SHANGHAI Total bit rate: 128 Format: MKIV1:4 Bits per sample: 2 Sample rate: 16.000 Number of channels: 4 Passes/head pos: 1 Speedup factor: 2.00 Tape speeds: Low density - 135.000 ips, High density - 80.00 ips Time per pass for 17600 ft, High density tapes is: 00:44:00 1st LO= 2200.00 2200.00 2200.00 2200.00 Net SB= U U U U Pol. = RCP LCP RCP LCP BBC = 1 2 3 4 BBC SB= L L L L IF = C A C A The following frequency sets based on this setup were used. Frequency Set: 8 Setup file default. Used pcal sets: 1 LO sum= 1650.49 1650.49 1658.49 1658.49 BBC fr= 549.51 549.51 541.51 541.51 Bandwd= 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 S1 S3 S1 S2 S3 S4 PCALXB2= S2 S4 S2 S4 M1 M2 M3 M4 PCALFR1= 510 510 6510 6510 0 0 0 0 PCALFR2= 510 510 6510 6510 0 0 0 0 Track assignments are: track1= 2, 18, 3, 19 barrel=roll_off SOURCE LIST -- B1030+074 18 cm 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) * 1030+074 10 30 57.066168 * 10 33 34.024600 10 33 34.873528 07 26 55.63966 * 07 11 26.12200 07 11 19.28410 From catalog imbedded in main SCHED input file. * 1038+064 10 38 40.885554 * 10 41 17.162900 10 41 18.006546 06 25 58.53423 * 06 10 16.92500 06 10 10.24218 From catalog imbedded in main SCHED input file. * 3C345 16 41 17.605861 * 16 42 58.809600 16 42 58.080947 39 54 10.81296 * 39 48 36.99200 39 48 24.53741 From catalog imbedded in main SCHED input file. * 1130+009 11 30 46.181452 * 11 33 20.055766 11 33 20.828178 00 57 27.49247 * 00 40 52.83795 00 40 47.61479 From catalog imbedded in main SCHED input file. * 3C84 03 16 29.567169 * 03 19 48.160000 03 19 47.598454 41 19 51.91887 * 41 30 42.10600 41 30 44.43683 From catalog imbedded in main SCHED input file. * 1038+051 10 36 10.827646 * 10 38 46.780300 10 38 47.630672 05 28 06.90909 * 05 12 29.09600 05 12 22.43598 From catalog imbedded in main SCHED input file. * 3C286 13 28 49.657708 * 13 31 08.288000 13 31 08.627695 30 45 58.64036 * 30 30 32.95900 30 30 22.81569 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) 1030+074 173.2 1038+064 171.1 3C345 91.2 1130+009 157.1 3C84 88.0 1038+051 171.0 3C286 130.0 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