COVER INFORMATION Station: HART (Code Hh ) Experiment: Fringe Tape - Session 3 2002 Exp. Code: f02c2 Schedule Version: 1.00 Processed by SCHED version: Release of 02 July 2002 PI: Antonis Polatidis Address: Max Planck Institut fur Radioastronomie Postfach 2024 D-53010 Bonn GERMANY Phone: +49 228 525 424 EMAIL: apolatid@mpifr-bonn.mpg.de Fax: +49 228 525 229 Phone during observation: +49 228 525 424 Observing mode: Notes: Please send the tape as soon as possible to the JIVE correlator The source is not up at Sh and Ur in the last scan Thank you for your efforts COVER LETTER: This is the Fringe Tape experiment for session 3, 2002 It uses 1 THIN tape for all stations Two sources are scheduled, the first - for the first 3 scans- is visible by all telescopes. The second source - last scan - is not up at Sh and Ur. Visible at higher elevations from all other telescopes To enable quick feedback, please send the tape as soon as possible to the JIVE correlator. Thank you for your efforts Schedule for HART (Code Hh ) Page 2 Fringe Tape - Session 3 2002 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) ---------------------------------------------------------------------------------------- --- Tue 5 Nov 2002 Day 309 --- Next scan frequencies: 4982.49 4982.49 4990.49 4990.49 Next BBC frequencies: 142.49 142.49 150.49 150.49 Next scan bandwidths: 8.00 8.00 8.00 8.00 09 00 00 1606+106 13 48 27 40.1 47.7 -2.3 0.0 0 1 1 0 09 00 00 09 14 00 --- 14 02 29 42.4 44.2 -2.1 0.0 840 F 1 5600 09 16 00 1606+106 14 04 29 42.7 43.7 -2.1 0.0 117 1 1 5600 09 16 00 09 31 00 --- 14 19 32 44.9 39.6 -1.8 0.0 900 F 1 11600 09 33 00 1606+106 14 21 32 45.2 39.1 -1.8 0.0 117 1 2 11600 09 33 00 09 48 00 --- 14 36 34 47.3 34.6 -1.5 0.0 900 R 1 5600 09 52 04 1219+044 14 40 39 45.0 306.9 2.3 0.0 127 1 2 5600 09 52 04 10 05 04 --- 14 53 41 42.6 303.9 2.5 0.0 780 R 1 400 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: 128-4-2.set Matches group hh6cm in /homes/antonios/sched/catalogs/freq.dat Values confirmed by E-mail Jonathan Quick 291100 (CR) Setup group: 5 Station: HART 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 15800 ft, High density tapes is: 00:39:30 1st LO= 4840.00 4840.00 4840.00 4840.00 Net SB= U U U U Pol. = RCP LCP RCP LCP BBC = 2 1 4 3 BBC SB= U U U U IF = 2N 1N 2N 1N The following frequency sets based on this setup were used. Frequency Set: 5 Setup file default. No pcal detection. LO sum= 4982.49 4982.49 4990.49 4990.49 BBC fr= 142.49 142.49 150.49 150.49 Bandwd= 8.000 8.000 8.000 8.000 Track assignments are: track1= 2, 18, 3, 19 barrel=roll_off SOURCE LIST -- Fringe Tape - Session 3 2002 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) J1222+0413 12 19 49.255028 * 12 22 22.549618 12 22 29.195742 * 1219+044 04 29 53.60851 * 04 13 15.77630 04 12 30.74272 1219+044 /homes/antonios/sched/catalogs/sources.vlba J1222+04 ICRF - Ext.1 Source - 1998 IERS Annual Report J1608+1029 16 06 23.396615 * 16 08 46.203178 16 08 52.050518 * 1606+106 10 36 59.80115 * 10 29 07.77585 10 28 48.47680 1606+106 /homes/antonios/sched/catalogs/sources.vlba J1608+10 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) 1219+044 39.7 1606+106 34.0 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