COVER INFORMATION Station: SHANG_S2 (Code Sh ) Experiment: VSOP observation of J2151+05 at 1.6 GHz Exp. Code: w330z Schedule Version: 1.00 Processed by SCHED version: Release of 28 April 2000 PI: Seiji Kameno Address: National Astronomical Observatory 2-21-1 Osawa, Mitaka, Tokyo 181-8588 Japan Phone: +81-422-34-3607 EMAIL: kameno@hotaka.mtk.nao.ac.jp Fax: +81-422-34-3869 Phone during observation: Observing mode: VSOP, 1.6 GHz continuum, 128-2-2 Notes: Fringe finder : J2148+06 Schedule for SHANG_S2 (Code Sh ) Page 2 VSOP observation of J2151+05 at 1.6 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. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Tue 21 Nov 2000 Day 326 --- Next scan frequencies: 1648.00 1664.00 Next BBC frequencies: 552.00 536.00 Next scan bandwidths: 16.00 16.00 07 00 00 J2151+05 19 07 10 44.0 114.6 -2.7 -51.5 0 1 1 52 07 00 00 09 00 00 --- 21 07 29 62.7 155.4 -0.7 -21.0 7200 F 1 2573 09 00 00 J2151+05 21 07 29 62.7 155.4 -0.7 -21.0 -2 1 1 2573 09 00 00 09 30 00 --- 21 37 34 64.6 171.8 -0.2 -7.0 1798 F 1 3203 09 30 00 J2151+05 21 37 34 64.6 171.8 -0.2 -7.0 -2 1 1 3203 09 30 00 10 05 00 --- 22 12 40 64.3 192.1 0.4 10.4 2098 F 1 3938 10 06 50 J2148+06 22 14 30 65.1 195.7 0.4 13.5 101 1 1 3976 10 06 50 10 15 00 --- 22 22 42 64.5 200.3 0.6 17.4 490 F 1 4148 ----------- Tape Change ------------ 10 25 00 J2151+05 22 32 43 63.0 203.0 0.7 19.6 593 1 1 52 10 25 00 10 45 00 --- 22 52 47 61.0 212.7 1.0 27.7 1200 F 1 472 10 46 50 J2148+06 22 54 37 61.3 216.2 1.1 30.7 101 1 1 511 10 46 50 10 55 00 --- 23 02 48 60.2 219.8 1.2 33.5 490 F 1 682 10 55 00 J2151+05 23 02 48 59.8 217.1 1.2 31.3 -7 1 1 682 10 55 00 12 05 00 --- 00 13 00 48.4 240.0 2.4 48.2 4193 F 1 2152 12 06 50 J2148+06 00 14 50 48.1 242.6 2.4 50.0 103 1 1 2191 12 06 50 12 15 00 --- 00 23 01 46.5 244.5 2.6 51.1 490 F 1 2362 12 16 50 J2151+05 00 24 52 46.2 242.9 2.6 50.0 105 1 1 2401 12 16 50 12 40 00 --- 00 48 06 41.6 247.9 2.9 52.9 1390 F 1 2887 12 40 00 J2151+05 00 48 06 41.6 247.9 2.9 52.9 -2 1 1 2887 12 40 00 12 55 00 --- 01 03 08 38.6 250.8 3.2 54.4 898 F 1 3202 12 56 50 J2151+05 01 04 58 38.3 251.1 3.2 54.5 107 1 1 3241 12 56 50 14 10 00 --- 02 18 20 23.0 262.8 4.4 58.6 4390 F 1 4777 14 10 00 J2151+05 02 18 20 23.0 262.8 4.4 58.6 -2 1 1 4777 14 10 00 15 00 00 --- 03 08 29 12.3 269.5 5.3 59.4 2998 F 1 5827 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/vsop1648_s2.set Matches group sh18cm in /home/sched/short-term/progs/current/catalogs/freq.dat Huang Xinyong 170300, dual pol but narrow(?) Setup group: 3 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= 2200.00 2200.00 Net SB= U U Pol. = LCP LCP BBC = 1 3 BBC SB= L L IF = A A The following frequency sets based on this setup were used. Frequency Set: 3 Setup file default. Used pcal sets: 1 LO sum= 1648.00 1664.00 BBC fr= 552.00 536.00 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 J2151+05 at 1.6 GHz Catalog positions marked with *. Position of date is for stop time of first scan. Names used in schedule marked with *. Short names used in VLA and SNAP files marked with +. Source Source position (RA/Dec) (B1950) (J2000) (Date) J2148+0657 21 45 36.078484 * 21 48 05.458682 21 48 06.963733 2145+067 06 43 40.90444 * 06 57 38.60404 06 57 55.80196 * J2148+06 /home/sched/short-term/progs/current/catalogs/sources.vlba USNO - Ref Frame 1998-6, Eubanks June 1998 J2151+0552 21 49 07.701239 * 21 51 37.875488 21 51 39.407284 2149+056 05 38 06.86976 * 05 52 12.95428 05 52 29.83207 * J2151+05 /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) J2148+06 92.2 J2151+05 92.6 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