COVER INFORMATION Station: HART (Code Hh ) Experiment: Fringe Tape C band - Session 1 2004 Exp. Code: f04c1 Schedule Version: 1.00 Processed by SCHED version: Release of 18 Sept. 2003 PI: Antonis Polatidis Address: Max Planck Institut fur Radioastronomie Bonn D-53 121 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: The Fringe Test will be correlated at JIVE Please send the tape as soon as possible to the JIVE correlator Thank you for your efforts COVER LETTER: This is the C-band (5GHZ) Fringe Tape experiment for session 1, 2004 It uses 1 THIN tape per station. The experiment consists of two ~11min scans on 3C454.3 (low elevation for SH) and two ~10 min scan and a Reverse 5min scan on 0234+285. It also contains a 30sec scan for each source to be used in FTP file transfer. The Fringe Tape will be correlated at JIVE. To enable quick feedback, please send the tape as soon as possible (with express mail) to the JIVE correlator. Thank you for your efforts. Good luck with the session. Schedule for HART (Code Hh ) Page 2 Fringe Tape C band - Session 1 2004 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) ---------------------------------------------------------------------------------------- --- Thu 12 Feb 2004 Day 43 --- 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 11 00 00 3C454.3 22 18 08 47.0 12.7 -0.6 0.0 0 1 1 0 11 00 00 11 10 30 --- 22 28 40 47.5 9.1 -0.4 0.0 630 F 1 4200 11 12 30 3C454.3 22 30 40 47.6 8.4 -0.4 0.0 95 1 1 4200 11 12 30 11 13 00 --- 22 31 10 47.6 8.2 -0.4 0.0 30 F 1 4400 11 14 00 3C454.3 22 32 10 47.6 7.8 -0.4 0.0 36 1 1 4400 11 14 00 11 25 00 --- 22 43 12 47.9 3.9 -0.2 0.0 660 F 1 8800 11 31 00 0234+285 22 49 13 12.5 49.0 -3.8 0.0 224 1 1 8800 11 31 00 11 41 30 --- 22 59 45 14.3 47.5 -3.6 0.0 630 F 1 13000 11 43 30 0234+285 23 01 45 14.6 47.2 -3.6 0.0 95 1 1 13000 11 43 30 11 44 00 --- 23 02 15 14.7 47.1 -3.6 0.0 30 F 1 13200 11 45 00 0234+285 23 03 15 14.8 46.9 -3.6 0.0 36 1 2 13200 11 45 00 11 55 00 --- 23 13 17 16.5 45.4 -3.4 0.0 600 R 1 9200 11 56 00 0234+285 23 14 17 16.6 45.2 -3.4 0.0 36 1 2 9200 11 56 00 12 01 00 --- 23 19 18 17.4 44.5 -3.3 0.0 300 R 1 7200 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: 11 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: 11 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 C band - Session 1 2004 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) J0237+2848 02 34 55.589591 * 02 37 52.405678 02 38 05.748221 * 0234+285 28 35 11.40783 * 28 48 08.99008 28 49 17.10478 J0237+28 /homes/antonios/sched/catalogs/sources.vlba ICRF - Ext.1 Source - 1998 IERS Annual Report J2253+1608 22 51 29.519733 * 22 53 57.747932 22 54 07.925695 2251+158 15 52 54.34806 * 16 08 53.56089 16 10 02.48756 * 3C454.3 /homes/antonios/sched/catalogs/sources.vlba J2253+16 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) 0234+285 83.2 3C454.3 34.9 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