COVER INFORMATION Station: SHANGHAI (Code Sh ) Experiment: TEST of the MkIV Formatters Exp. Code: VIV001 Schedule Version: 1.00 Processed by SCHED version: Release of 28 April 2000 PI: Mike Garrett Address: JIVE Postbus 2 7990 AA Dwingeloo Netherlands Phone: +31 521 596511 EMAIL: garrett@jive.nl Fax: +31 521 597332 Phone during observation: +31 528 220842 Observing mode: 6cm 128 Mbit/sec, 8 chan, 2 bit sampling: 128-8-2 Notes: TEST of the MkIV Formatters Dual Polarisation Schedule for SHANGHAI (Code Sh ) Page 2 TEST of the MkIV Formatters 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) ---------------------------------------------------------------------------------------- --- Wed 7 Jun 2000 Day 159 --- Next scan frequencies: 4982.49 4982.49 4986.49 4986.49 4990.49 4990.49 4994.49 4994.49 Next BBC frequencies: 782.49 782.49 786.49 786.49 790.49 790.49 794.49 794.49 Next scan bandwidths: 4.00 4.00 4.00 4.00 4.00 4.00 4.00 4.00 11 30 00 J0927+3902 12 39 29 50.3 295.2 3.2 86.3 0 1 1 0 11 30 00 11 52 00 =0923+392 13 01 33 46.0 295.7 3.6 83.3 1320 F 1 8800 11 54 00 J0927+3902 13 03 33 45.6 295.8 3.6 83.0 117 1 1 8800 11 54 00 12 16 00 =0923+392 13 25 37 41.4 296.7 4.0 80.1 1320 F 1 17600 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: viv001.6cm Matches group sh6cm in ./freq.dat from Huang Xinyong 170300, change in LO Setup group: 9 Station: SHANGHAI Total bit rate: 128 Format: VLBA1:2 Bits per sample: 2 Sample rate: 8.000 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= 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 Net SB= U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 2 3 4 5 6 7 8 BBC SB= U U U U U U U U IF = C A C A C A C A The following frequency sets based on this setup were used. Frequency Set: 9 Setup file default. Used pcal sets: 1 LO sum= 4982.49 4982.49 4986.49 4986.49 4990.49 4990.49 4994.49 4994.49 BBC fr= 782.49 782.49 786.49 786.49 790.49 790.49 794.49 794.49 Bandwd= 4.000 4.000 4.000 4.000 4.000 4.000 4.000 4.000 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 2510 2510 2510 2510 PCALFR2= 510 510 510 510 2510 2510 2510 2510 Track assignments are: track1= 2, 10, 18, 26, 3, 11, 19, 27 barrel=roll_off SOURCE LIST -- TEST of the MkIV Formatters 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) * J0927+3902 09 23 55.319194 * 09 27 03.013915 09 27 02.513515 + 0923+392 39 15 23.56652 * 39 02 20.85193 39 02 26.07735 4C39.25 /aps3/sched/catalogs/sources.vlba J0927+39 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) J0927+3902 57.5 0923+392 57.5 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