COVER INFORMATION Station: VLBA_LA (Code La ) Experiment: be035; 8 GHz observations 3EG counterparts Exp. Code: be035o Schedule Version: 1.00 Processed by SCHED version: Release of 18 Sept. 2003 PI: Philip Edwards Address: Inst. Space and Astronautical Science/JAXA 3-1-1 Yoshinodai, Sagamihara Kanagawa 229-8510 Japan Phone: +81-42-759-8342 EMAIL: pge@vsop.isas.jaxa.jp Fax: +81-42-759-8485 Phone during observation: +81-42-759-8342 Observing mode: 128-8-1 at 4cm Notes: Fringe finder: J1826+1831 1 hr dynamically scheduled from 18:00 LST Schedule for VLBA_LA (Code La ) Page 2 be035; 8 GHz observations 3EG counterparts 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). 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) ---------------------------------------------------------------------------------------- --- Sat 7 Aug 2004 Day 220 --- Next scan frequencies: 8109.99 8129.99 8175.99 8255.99 8350.99 8411.99 8520.99 8595.99 Next BBC frequencies: 709.99 729.99 775.99 855.99 950.99 988.01 879.01 804.01 Next scan bandwidths: 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 04 08 23 J1826+1831 18 07 30 72.3 165.1 -0.3 -12.7 0 1 1 0 04 08 23 04 10 22 =1824+185 18 09 30 72.4 166.6 -0.3 -11.4 120 F 1 798 04 12 22 J1822+1600 18 11 30 70.1 172.3 -0.2 -6.5 109 1 1 798 04 12 22 04 16 21 =1819+159 18 15 30 70.2 175.1 -0.1 -4.1 239 F 1 2393 04 16 41 J1819+1543 18 15 50 69.9 177.2 -0.1 -2.4 13 1 1 2393 04 16 21 04 20 40 --- 18 19 50 70.0 180.0 0.0 0.0 239 F 1 4122 04 21 00 J1815+1623 18 20 10 70.6 183.4 0.1 2.9 12 1 1 4122 04 20 40 04 25 00 --- 18 24 10 70.5 186.3 0.1 5.3 239 F 1 5851 04 25 20 J1822+1800 18 24 30 72.2 181.5 0.0 1.3 11 1 1 5851 04 25 00 04 31 19 --- 18 30 30 72.1 186.2 0.1 5.3 359 F 1 8377 04 31 39 J1816+1746 18 30 50 71.7 191.1 0.2 9.4 11 1 1 8377 04 31 19 04 35 38 --- 18 34 50 71.5 194.1 0.3 12.0 239 F 1 10106 04 35 58 J1822+1600 18 35 10 70.0 189.0 0.2 7.6 11 1 1 10106 04 35 38 04 39 57 =1819+159 18 39 10 69.9 191.8 0.3 9.9 239 F 1 11834 04 40 17 J1819+1543 18 39 30 69.5 193.6 0.3 11.4 13 1 1 11834 04 39 57 04 44 17 --- 18 43 30 69.3 196.3 0.4 13.7 239 F 1 13563 04 44 37 J1815+1623 18 43 50 69.6 199.9 0.5 16.7 12 1 1 13563 04 44 17 04 48 36 --- 18 47 50 69.3 202.5 0.5 18.9 239 F 1 15291 04 48 56 J1822+1613 18 48 10 69.7 197.5 0.4 14.7 11 1 2 15291 04 48 36 04 54 55 --- 18 54 10 69.3 201.5 0.5 18.0 359 R 1 17382 04 55 15 J1822+1600 18 54 30 69.0 202.0 0.5 18.4 14 1 2 17382 04 54 55 04 59 14 =1819+159 18 58 30 68.7 204.5 0.6 20.5 239 R 1 15654 04 59 34 J1819+1543 18 58 50 68.2 206.0 0.6 21.6 13 1 2 15654 04 59 14 05 03 33 --- 19 02 50 67.8 208.3 0.7 23.6 239 R 1 13925 Schedule for VLBA_LA (Code La ) Page 3 be035; 8 GHz observations 3EG counterparts 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). 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) ---------------------------------------------------------------------------------------- --- Sat 7 Aug 2004 Day 220 --- 05 03 53 J1815+1623 19 03 10 67.9 211.8 0.8 26.5 12 1 2 13925 05 03 33 05 07 53 --- 19 07 10 67.5 214.0 0.9 28.3 239 R 1 12196 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: vgeo-128-8-1.set Matches group vsx_1w in /home/filehost/cwalker/sched/catalogs/freq.dat Setup group: 1 Station: VLBA Total bit rate: 128 Format: VLBA1:4 Bits per sample: 1 Sample rate: 16.000 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= 7400.00 7400.00 7400.00 7400.00 7400.00 9400.00 9400.00 9400.00 Net SB= U U U U U U U U Pol. = RCP RCP RCP RCP RCP RCP RCP RCP BBC = 1 2 3 4 5 6 7 8 BBC SB= U U U U U L L L IF = B B B B B D D D VLBA FE= 13cm 4cm 13cm 4cm VLBA Synth= 7.4 2.9 9.4 The following frequency sets based on this setup were used. Frequency Set: 1 Setup file default. Used pcal sets: 1 LO sum= 8109.99 8129.99 8175.99 8255.99 8350.99 8411.99 8520.99 8595.99 BBC fr= 709.99 729.99 775.99 855.99 950.99 988.01 879.01 804.01 Bandwd= 8.000 8.000 8.000 8.000 8.000 8.000 8.000 8.000 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= 10 10 10 10 6010 6010 6010 6010 PCALFR2= 10 10 10 10 6010 6010 6010 6010 Track assignments are: track1= 2, 10, 18, 26, 3, 11, 19, 27 barrel=roll_auto SOURCE LIST -- be035; 8 GHz observations 3EG counterparts 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) * J1819+1543 18 17 23.301436 * 18 19 38.350000 18 19 51.334774 15 42 23.59552 * 15 43 44.50000 15 43 53.44997 From catalog imbedded in main SCHED input file. * J1815+1623 18 13 00.671257 * 18 15 14.850000 18 15 27.747687 16 22 44.91588 * 16 23 46.70000 16 23 54.14225 From catalog imbedded in main SCHED input file. * J1822+1800 18 20 09.042119 * 18 22 21.230000 18 22 33.980548 17 58 36.96618 * 18 00 09.80000 18 00 20.13468 From catalog imbedded in main SCHED input file. * J1816+1746 18 13 52.211724 * 18 16 04.630000 18 16 17.381378 17 45 53.23083 * 17 46 58.70000 17 47 06.68959 From catalog imbedded in main SCHED input file. * J1822+1613 18 20 41.797633 * 18 22 56.240000 18 23 09.183062 16 12 22.70885 * 16 13 58.00000 16 14 08.25543 From catalog imbedded in main SCHED input file. * J1822+1600 18 19 55.245739 * 18 22 09.968988 18 22 22.933634 1819+159 15 58 42.92001 * 16 00 14.84381 16 00 24.77566 /home/filehost/cwalker/sched/catalogs/sources.vlba VLBA Calib. Survey - ICRF Frame - reduced by GSFC group - Aug 2001 * J1826+1831 18 24 06.161368 * 18 26 17.710884 18 26 30.418868 1824+185 18 30 02.88916 * 18 31 52.88993 18 32 04.75580 /home/filehost/cwalker/sched/catalogs/sources.vlba VLBA Calib. Survey - ICRF Frame - reduced by GSFC group - Aug 2001 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) J1819+1543 127.2 J1815+1623 126.0 J1822+1800 126.4 J1816+1746 125.3 J1822+1613 127.5 J1822+1600 127.5 J1826+1831 126.8 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