COVER INFORMATION Station: SHANG_S2 (Code Sh ) Experiment: VSOP observation of J0457-23 at 5 GHz Exp. Code: vs05n Schedule Version: 1.00 Processed by SCHED version: 16 Oct. 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 : J0609-15 Schedule for SHANG_S2 (Code Sh ) Page 2 VSOP observation of J0457-23 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) ---------------------------------------------------------------------------------------- --- Wed 27 Feb 2002 Day 58 --- Next scan frequencies: 4800.00 4816.00 Next BBC frequencies: 600.00 616.00 Next scan bandwidths: 16.00 16.00 06 00 00 J0457-23 00 32 25 6.4 122.3 -4.4 -52.0 0 1 1 52 06 00 00 07 00 00 --- 01 32 35 16.7 131.7 -3.4 -44.1 3600 F 1 1312 07 00 00 J0457-23 01 32 35 16.7 131.7 -3.4 -44.1 -2 1 1 1312 07 00 00 08 00 00 --- 02 32 45 25.4 143.2 -2.4 -34.0 3598 F 1 2572 08 01 30 J0609-15 02 34 15 20.2 124.0 -3.6 -47.5 50 1 1 2604 08 01 30 08 08 30 --- 02 41 16 21.5 125.3 -3.5 -46.6 420 F 1 2751 08 10 00 J0457-23 02 42 46 26.7 145.4 -2.2 -32.0 48 1 1 2782 08 10 00 09 00 00 --- 03 32 55 31.9 157.2 -1.4 -21.2 3000 F 1 3832 09 01 30 J0609-15 03 34 25 30.1 135.7 -2.6 -38.4 45 1 1 3864 09 01 30 09 08 30 --- 03 41 26 31.2 137.3 -2.5 -37.1 420 F 1 4011 09 10 00 J0457-23 03 42 56 32.7 159.7 -1.2 -18.9 43 1 1 4042 09 10 00 10 00 00 --- 04 33 04 35.2 173.2 -0.4 -6.3 3000 F 1 5092 10 01 30 J0609-15 04 34 35 37.9 150.5 -1.6 -26.0 43 1 1 5124 10 01 30 10 08 30 --- 04 41 36 38.6 152.5 -1.5 -24.3 420 F 1 5271 10 10 00 J0457-23 04 43 06 35.4 176.1 -0.2 -3.7 41 1 1 5302 10 10 00 10 55 00 --- 05 28 13 35.0 188.7 0.5 8.1 2700 F 1 6247 10 55 00 J0457-23 05 28 13 35.0 188.7 0.5 8.1 -2 1 1 6247 10 55 00 11 30 00 --- 06 03 19 33.2 198.2 1.1 16.9 2098 F 1 6982 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 J0457-23 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) J0457-2324 04 54 57.297218 * 04 57 03.179230 04 57 08.032746 0454-234 -23 29 28.31946 *-23 24 52.02005 -23 24 54.96596 0454-234 /home/sched/short-term/progs/current/catalogs/sources.vlba * J0457-23 ICRF - Ext.1 Source - 1998 IERS Annual Report J0609-1542 06 07 25.981285 * 06 09 40.949539 06 09 46.514604 0607-157 -15 42 03.30585 *-15 42 40.67264 -15 42 52.58146 0607-157 /home/sched/short-term/progs/current/catalogs/sources.vlba * J0609-15 ICRF - Ext.1 Source - 1998 IERS Annual Report 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) J0457-23 90.4 J0609-15 108.7 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