COVER INFORMATION Station: SHANG_S2 (Code Sh ) Experiment: VSOP observation of J0424+00 at 5 GHz Exp. Code: vs07z Schedule Version: 1.00 Processed by SCHED version: Release of 30 Jan. 2001 PI: The VSOP Survey Program, Hirabayashi Lab. Address: Institute of Space and Astronautical Science, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 229-8510 JAPAN Phone: 81-427-59-8340 EMAIL: vsog@vsop.isas.ac.jp Fax: 81-427-59-8340 Phone during observation: Observing mode: VSOP, 5 GHz continuum, 128-2-2 Notes: Fringe finder : J0204+15 HALCA tracking 048:03:25:00--048:05:45:08 TDBIN_TS Schedule for SHANG_S2 (Code Sh ) Page 2 VSOP observation of J0424+00 at 5 GHz 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). ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sat 17 Feb 2001 Day 48 --- Next scan frequencies: 4800.00 4816.00 Next BBC frequencies: 600.00 616.00 Next scan bandwidths: 16.00 16.00 03 30 00 J0204+15 21 23 32 24.4 86.4 -4.7 -62.3 0 1 1 52 03 30 00 03 38 10 --- 21 31 43 26.2 87.4 -4.6 -62.4 490 F 1 224 05 00 00 J0424+00 22 53 47 6.5 93.2 -5.5 -58.8 4842 1 1 279 05 00 00 06 00 00 --- 23 53 57 19.3 101.4 -4.5 -57.1 3600 F 1 1539 06 01 50 J0204+15 23 55 47 56.5 110.9 -2.2 -56.0 -16 1 1 1577 06 01 50 06 10 00 --- 00 03 58 58.2 112.9 -2.0 -54.8 474 F 1 1749 06 11 50 J0424+00 00 05 49 21.8 103.1 -4.3 -56.5 -13 1 1 1787 06 11 50 06 50 00 --- 00 44 05 29.6 109.2 -3.7 -54.0 2277 F 1 2589 06 51 50 J0204+15 00 45 55 66.0 126.8 -1.3 -45.3 -13 1 1 2627 06 51 50 07 00 00 --- 00 54 07 67.3 130.4 -1.2 -42.5 477 F 1 2799 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: /home/sched/short-term/progs/current/setups/vsop4800_s2.set Matches group sh6cm in /home/sched/short-term/progs/current/catalogs/freq.dat from Huang Xinyong 170300, change in LO Setup group: 6 Station: SHANG_S2 Total bit rate: 128 Format: S2 Bits per sample: 2 Sample rate: 32.000 Number of channels: 2 Passes/head pos: 1 Speedup factor: 1.00 Tape speeds: Low density - 6.300 ips, High density - 4.20 ips Time per pass for 7600 ft, High density tapes is: 06:01:54 1st LO= 4200.00 4200.00 Net SB= U U Pol. = LCP LCP BBC = 1 3 BBC SB= U U IF = A A The following frequency sets based on this setup were used. Frequency Set: 6 Setup file default. Used pcal sets: 1 LO sum= 4800.00 4816.00 BBC fr= 600.00 616.00 Bandwd= 16.000 16.000 The following pulse cal sets were used with this setup: Pulse cal detection set: 1 PCAL = 1MHZ PCALXB1= S1 S1 S1 S2 S1 OFF OFF OFF PCALXB2= S2 S2 M1 M2 S2 OFF OFF OFF PCALFR1= 1000 13000 0 0 2000 0 0 0 PCALFR2= 1000 13000 0 0 2000 0 0 0 Track assignments are: track1= 0, 0 barrel=roll_off SOURCE LIST -- VSOP observation of J0424+00 at 5 GHz 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) J0204+1514 02 02 07.396238 * 02 04 50.413906 02 04 52.561317 0202+149 14 59 50.93914 * 15 14 11.04336 15 14 22.10510 * J0204+15 /home/sched/short-term/progs/current/catalogs/sources.vlba USNO - Ref Frame 1998-6, Eubanks June 1998 J0424+0036 04 22 12.515407 * 04 24 46.842053 04 24 49.613838 0422+004 00 29 16.67918 * 00 36 06.32936 00 36 04.52219 * J0424+00 /home/sched/short-term/progs/current/catalogs/sources.vlba USNO - Ref Frame 1998-6, Eubanks June 1998 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) J0204+15 65.7 J0424+00 95.4 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