COVER INFORMATION Station: VLBA_PT (Code Pt ) Experiment: VLBA Monitoring Exp. Code: MT729b Schedule Version: 3.20 Processed by SCHED version: 6.05 June 2006 PI: Lorant Sjouwerman Address: NRAO-AOC P.O.Box O Socorro NM 87801, U.S.A. Phone: +1-505-838-4507 (home) EMAIL: lsjouwer@nrao.edu, analysts@nrao.edu Fax: Phone during observation: +1-505-835-7332 (work) Observing mode: VLBA 128MHz 8bbc 1bit R+L Notes: VLBA Monitoring test in dynamic scheduling and runs for 90 minutes (1.5 hours) total. Note: MAKE SURE ONE SOURCE IS SELECTED COVER LETTER: Please schedule ONE source depending on between approximately -3h to +3h of LST in Pie Town; a source can be selected by deleting the -one and only- ONE explanation mark in front of it. Schedule for VLBA_PT (Code Pt ) Page 2 VLBA Monitoring 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. For disks, the footages are really the GBytes TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) SYNC ---------------------------------------------------------------------------------------- --- Tue 7 Aug 2007 Day 219 --- Next scan frequencies: 4958.49 4958.49 4974.49 4974.49 4990.49 4990.49 5006.49 5006.49 Next BBC frequencies: 858.49 858.49 874.49 874.49 890.49 890.49 906.49 906.49 Next scan bandwidths: 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 12 09 55 0316+413 02 00 00 72.6 59.5 -1.3 -108.1 0 1 1 0 12 09 55 12 17 54 --- 02 08 00 74.1 57.7 -1.2 -111.1 479 F 1 31 12 10 13 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: band.6-512 Matches group v6cm_2 in /home/arana/cwalker/sched/catalogs/freq.dat Setup group: 1 Station: VLBA_PT Total bit rate: 512 Format: VLBA1:4 Bits per sample: 2 Sample rate: 32.000 Number of channels: 8 Speedup factor: 1.00 Disk used to record data. 1st LO= 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 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 = A C A C A C A C VLBA FE= 6cm omit 6cm omit VLBA Synth= 15.4 4.1 15.4 The following frequency sets based on this setup were used. Frequency Set: 1 Setup file default. Used pcal sets: 1 LO sum= 4958.49 4958.49 4974.49 4974.49 4990.49 4990.49 5006.49 5006.49 BBC fr= 858.49 858.49 874.49 874.49 890.49 890.49 906.49 906.49 Bandwd= 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 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 13510 13510 13510 13510 PCALFR2= 510 510 510 510 13510 13510 13510 13510 Track assignments are: track1= 2, 18, 3, 19, 66, 82, 67, 83 barrel=roll_off SOURCE LIST -- VLBA Monitoring 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). Scan hours are for recording scans only. Baseline hours are only counted for scans above horizon at both ends. Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) J0319+4130 03 16 29.567289 * 03 19 48.160119 03 20 18.450333 0.28 * 0316+413 41 19 51.91677 * 41 30 42.10389 41 32 19.76417 0.41 3C84 /home/arana/cwalker/sched/catalogs/sources.vlba J0319+41 VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 0.133 scan hours, 5.984 baseline hours above horizon. 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) 0316+413 77.0 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