COVER INFORMATION Station: PDBURE (Code PB ) Experiment: 3MM APR 17, 23h45 UT - APR 18, 06h10 UT, part2 for SgrA* Exp. Code: c051b Schedule Version: 3.00 Processed by SCHED version: 6.01 Release: Late March 2005 PI: Global 3mm VLBI Array Address: Max-Planck-Institut fuer Radioastronomie Auf dem Huegel 69 53121 Bonn Germany Phone: 0049-228-525-295 EMAIL: tkrichbaum@mpifr-bonn.mpg.de Fax: 0049-2257-301-106 Phone during observation: 0049-2257-301-155 Observing mode: 1024-8-2 Notes: Will use automatic reference pointing. phasecal should be always ON, measure Tsys in PREOB and POSTOB Do frequent pointing on 1757-240 and SgrA Schedule for PDBURE (Code PB ) Page 2 3MM APR 17, 23h45 UT - APR 18, 06h10 UT, part2 for SgrA* 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) ---------------------------------------------------------------------------------------- --- Sun 17 Apr 2005 Day 107 --- Next scan frequencies: 86157.99 86157.99 86189.99 86189.99 86221.99 86221.99 86253.99 86253.99 86285.99 86285.99 86317.99 86317.99 86349.99 86349.99 86381.99 86381.99 Next BBC frequencies: 238.99 238.99 270.99 270.99 302.99 302.99 334.99 334.99 366.99 366.99 398.99 398.99 430.99 430.99 462.99 462.99 Next scan bandwidths: 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 23 45 00 1749+096 13 53 25 28.2 105.2 -4.0 -44.1 0 1 1 0 23 45 00 23 50 30 --- 13 58 56 29.2 106.3 -3.9 -43.8 330 F 1 0 --- Mon 18 Apr 2005 Day 108 --- 00 00 01 1749+096 14 08 29 30.8 108.3 -3.7 -43.3 565 1 1 0 00 00 01 00 05 31 --- 14 14 00 31.7 109.5 -3.6 -42.9 330 F 1 0 00 15 00 1741-038 14 23 30 24.0 122.9 -3.3 -36.8 540 1 1 0 00 15 00 00 20 30 --- 14 29 01 24.9 124.1 -3.3 -36.2 330 F 1 0 00 30 00 1741-038 14 38 33 26.3 126.3 -3.1 -35.1 564 1 1 0 00 30 00 00 35 30 --- 14 44 04 27.0 127.6 -3.0 -34.4 330 F 1 0 00 45 00 1741-038 14 53 35 28.4 129.8 -2.8 -33.2 564 1 1 0 00 45 00 00 50 30 --- 14 59 06 29.1 131.1 -2.8 -32.5 330 F 1 0 01 00 00 1741-038 15 08 38 30.4 133.4 -2.6 -31.2 563 1 1 0 01 00 00 01 05 30 --- 15 14 09 31.1 134.8 -2.5 -30.4 330 F 1 0 01 20 00 1741-038 15 28 41 32.8 138.5 -2.3 -28.2 861 1 1 0 01 20 00 01 25 30 --- 15 34 12 33.5 140.0 -2.2 -27.3 330 F 1 0 01 40 00 NRAO530 15 48 44 27.6 151.0 -1.7 -20.7 846 1 1 0 01 40 00 01 45 30 --- 15 54 15 28.1 152.5 -1.7 -19.7 330 F 1 0 02 00 00 NRAO530 16 08 48 29.2 156.3 -1.4 -17.1 860 1 1 0 02 00 00 02 05 30 --- 16 14 19 29.6 157.8 -1.3 -16.1 330 F 1 0 02 10 00 NRAO530 16 18 49 29.8 159.0 -1.2 -15.2 266 1 1 0 02 10 00 02 15 30 --- 16 24 20 30.2 160.5 -1.2 -14.1 330 F 1 0 Schedule for PDBURE (Code PB ) Page 3 3MM APR 17, 23h45 UT - APR 18, 06h10 UT, part2 for SgrA* 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) ---------------------------------------------------------------------------------------- --- Mon 18 Apr 2005 Day 108 --- 02 30 00 SGR_A 16 38 53 14.8 164.9 -1.1 -12.3 837 1 1 0 02 30 00 02 35 30 --- 16 44 23 15.0 166.1 -1.0 -11.3 330 F 1 0 02 45 00 SGR_A 16 53 55 15.4 168.2 -0.9 -9.6 564 1 1 0 02 45 00 02 50 30 --- 16 59 26 15.6 169.4 -0.8 -8.6 330 F 1 0 03 00 00 SGR_A 17 08 58 15.9 171.6 -0.6 -6.8 564 1 1 0 03 00 00 03 05 30 --- 17 14 28 16.0 172.8 -0.5 -5.8 330 F 1 0 03 15 00 SGR_A 17 24 00 16.2 175.0 -0.4 -4.1 564 1 1 0 03 15 00 03 20 30 --- 17 29 31 16.3 176.2 -0.3 -3.1 330 F 1 0 03 30 00 SGR_A 17 39 02 16.3 178.4 -0.1 -1.3 564 1 1 0 03 30 00 03 35 30 --- 17 44 33 16.4 179.7 0.0 -0.3 330 F 1 0 03 45 00 SGR_A 17 54 05 16.3 181.8 0.1 1.5 564 1 1 0 03 45 00 03 50 30 --- 17 59 36 16.3 183.1 0.2 2.5 330 F 1 0 04 00 00 SGR_A 18 09 07 16.2 185.3 0.4 4.3 564 1 1 0 04 00 00 04 05 30 --- 18 14 38 16.1 186.5 0.5 5.3 330 F 1 0 04 15 00 SGR_A 18 24 10 15.8 188.7 0.6 7.0 564 1 1 0 04 15 00 04 20 30 --- 18 29 41 15.7 189.9 0.7 8.0 330 F 1 0 04 30 00 SGR_A 18 39 12 15.4 192.0 0.9 9.8 564 1 1 0 04 30 00 04 35 30 --- 18 44 43 15.1 193.3 1.0 10.8 330 F 1 0 04 45 00 SGR_A 18 54 15 14.7 195.4 1.1 12.5 564 1 1 0 04 45 00 04 50 30 --- 18 59 46 14.5 196.6 1.2 13.4 330 F 1 0 05 00 00 SGR_A 19 09 17 13.9 198.7 1.4 15.1 564 1 1 0 05 00 00 05 05 30 --- 19 14 48 13.6 199.9 1.5 16.1 330 F 1 0 05 15 00 SGR_A 19 24 20 13.0 201.9 1.6 17.7 564 1 1 0 05 15 00 05 20 30 --- 19 29 51 12.6 203.1 1.7 18.6 330 F 1 0 05 30 00 NRAO530 19 39 22 25.6 214.4 2.1 24.3 542 1 1 0 05 30 00 05 35 30 --- 19 44 53 25.0 215.7 2.2 25.2 330 F 1 0 05 45 00 NRAO530 19 54 25 24.0 218.0 2.4 26.7 563 1 1 0 05 45 00 05 50 30 --- 19 59 56 23.4 219.3 2.4 27.6 330 F 1 0 06 00 00 1741-038 20 09 27 31.7 224.0 2.4 29.7 551 1 1 0 06 00 00 06 05 30 --- 20 14 58 31.0 225.3 2.5 30.5 330 F 1 0 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: 3mm-1024-8-2-UL.set Matches group 3mm_pdbure-l in freq.3mm 3-mm CMVA Setup group: 2 Station: PDBURE Total bit rate: 1024 Format: MKIV1:2 Bits per sample: 2 Sample rate: 32.000 Number of channels: 16 Passes/head pos: 1 Speedup factor: 0.50 1st LO= 85919.00 85919.00 85919.00 85919.00 85919.00 85919.00 85919.00 85919.00 85919.00 85919.00 85919.00 85919.00 85919.00 85919.00 85919.00 85919.00 Net SB= L U L U L U L U L U L U L U L U Pol. = LCP LCP LCP LCP LCP LCP LCP LCP LCP LCP LCP LCP LCP LCP LCP LCP BBC = 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 BBC SB= L U L U L U L U L U L U L U L U IF = 1N 1N 2A 2A 1N 1N 2A 2A 1N 1N 2A 2A 1N 1N 2A 2A The following frequency sets based on this setup were used. Frequency Set: 3 Setup file default. No pcal detection. LO sum= 86157.99 86157.99 86189.99 86189.99 86221.99 86221.99 86253.99 86253.99 86285.99 86285.99 86317.99 86317.99 86349.99 86349.99 86381.99 86381.99 BBC fr= 238.99 238.99 270.99 270.99 302.99 302.99 334.99 334.99 366.99 366.99 398.99 398.99 430.99 430.99 462.99 462.99 Bandwd= 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 16.000 Track assignments are: track1= 2, 10, 18, 26, 3, 11, 19, 27, 66, 74, 82, 90, 67, 75, 83, 91 barrel=roll_off SOURCE LIST -- 3MM APR 17, 23h45 UT - APR 18, 06h10 UT, part2 for SgrA* 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) * SGR_A 17 42 29.307533 * 17 45 40.038500 17 46 00.451754 0.00 -28 59 18.51915 *-29 00 28.10400 -29 00 41.72820 0.00 From catalog imbedded in main SCHED input file. 1.100 scan hours, 2.933 baseline hours above horizon. J1733-1304 17 30 13.535187 * 17 33 02.705785 17 33 20.881639 0.21 1730-130 -13 02 45.83975 *-13 04 49.54823 -13 05 13.80407 0.30 J1733-13 /aux/pc124a/p459kri/sched/catalogs/sources.vlba * NRAO530 VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.458 scan hours, 1.375 baseline hours above horizon. J1743-0350 17 41 20.616009 * 17 43 58.856133 17 44 15.848684 0.20 * 1741-038 -03 48 48.89991 *-03 50 04.61671 -03 50 26.61282 0.30 J1743-03 /aux/pc124a/p459kri/sched/catalogs/sources.vlba VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.550 scan hours, 1.650 baseline hours above horizon. J1751+0939 17 49 10.387929 * 17 51 32.818572 17 51 48.160047 0.30 * 1749+096 09 39 42.82589 * 09 39 00.72844 09 38 38.39804 0.20 J1751+09 /aux/pc124a/p459kri/sched/catalogs/sources.vlba VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.183 scan hours, 0.550 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) SGR_A 121.1 NRAO530 124.2 1741-038 120.3 1749+096 115.3 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