COVER INFORMATION Station: PICOVEL (Code PV ) 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 PICOVEL (Code PV ) 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: 650.99 650.99 682.99 682.99 714.99 714.99 746.99 746.99 778.99 778.99 810.99 810.99 842.99 842.99 874.99 874.99 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 16 14 22.6 95.0 -4.6 -53.7 0 1 1 0 23 45 00 23 50 30 --- 13 21 45 23.7 95.9 -4.5 -53.6 330 F 1 0 --- Mon 18 Apr 2005 Day 108 --- 00 00 01 1749+096 13 31 17 25.6 97.4 -4.3 -53.4 565 1 1 0 00 00 01 00 05 31 --- 13 36 48 26.7 98.3 -4.3 -53.2 330 F 1 0 00 15 00 1741-038 13 46 19 21.3 112.7 -4.0 -47.6 538 1 1 0 00 15 00 00 20 30 --- 13 51 49 22.3 113.7 -3.9 -47.1 330 F 1 0 00 30 00 1741-038 14 01 21 24.1 115.4 -3.7 -46.2 564 1 1 0 00 30 00 00 35 30 --- 14 06 52 25.1 116.5 -3.6 -45.7 330 F 1 0 00 45 00 1741-038 14 16 24 26.8 118.3 -3.5 -44.7 564 1 1 0 00 45 00 00 50 30 --- 14 21 54 27.7 119.4 -3.4 -44.1 330 F 1 0 01 00 00 1741-038 14 31 26 29.4 121.4 -3.2 -43.0 564 1 1 0 01 00 00 01 05 30 --- 14 36 57 30.3 122.6 -3.1 -42.4 330 F 1 0 01 20 00 1741-038 14 51 29 32.7 125.8 -2.9 -40.5 862 1 1 0 01 20 00 01 25 30 --- 14 57 00 33.6 127.0 -2.8 -39.7 330 F 1 0 01 40 00 NRAO530 15 11 33 29.8 139.4 -2.4 -32.2 843 1 1 0 01 40 00 01 45 30 --- 15 17 03 30.5 140.7 -2.3 -31.2 330 F 1 0 02 00 00 NRAO530 15 31 36 32.3 144.3 -2.0 -28.6 861 1 1 0 02 00 00 02 05 30 --- 15 37 07 32.9 145.7 -1.9 -27.5 330 F 1 0 02 10 00 NRAO530 15 41 37 33.4 146.9 -1.9 -26.6 266 1 1 0 02 10 00 02 15 30 --- 15 47 08 34.0 148.3 -1.8 -25.5 330 F 1 0 Schedule for PICOVEL (Code PV ) 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 01 41 19.5 155.9 -1.7 -21.9 839 1 1 0 02 30 00 02 35 30 --- 16 07 12 20.0 157.1 -1.6 -20.8 330 F 1 0 02 45 00 SGR_A 16 16 43 20.7 159.2 -1.5 -18.9 564 1 1 0 02 45 00 02 50 30 --- 16 22 14 21.1 160.4 -1.4 -17.8 330 F 1 0 03 00 00 SGR_A 16 31 46 21.7 162.6 -1.2 -15.9 564 1 1 0 03 00 00 03 05 30 --- 16 37 17 22.0 163.8 -1.1 -14.7 330 F 1 0 03 15 00 SGR_A 16 46 48 22.5 166.0 -1.0 -12.7 564 1 1 0 03 15 00 03 20 30 --- 16 52 19 22.7 167.3 -0.9 -11.6 330 F 1 0 03 30 00 SGR_A 17 01 51 23.1 169.5 -0.7 -9.6 564 1 1 0 03 30 00 03 35 30 --- 17 07 22 23.3 170.8 -0.6 -8.4 330 F 1 0 03 45 00 SGR_A 17 16 53 23.6 173.1 -0.5 -6.3 563 1 1 0 03 45 00 03 50 30 --- 17 22 24 23.7 174.4 -0.4 -5.1 330 F 1 0 04 00 00 SGR_A 17 31 56 23.8 176.6 -0.2 -3.1 563 1 1 0 04 00 00 04 05 30 --- 17 37 26 23.9 178.0 -0.1 -1.9 330 F 1 0 04 15 00 SGR_A 17 46 58 23.9 180.2 0.0 0.2 563 1 1 0 04 15 00 04 20 30 --- 17 52 29 23.9 181.5 0.1 1.4 330 F 1 0 04 30 00 SGR_A 18 02 00 23.8 183.8 0.3 3.5 563 1 1 0 04 30 00 04 35 30 --- 18 07 31 23.7 185.1 0.4 4.7 330 F 1 0 04 45 00 SGR_A 18 17 03 23.5 187.4 0.5 6.7 563 1 1 0 04 45 00 04 50 30 --- 18 22 34 23.4 188.7 0.6 7.9 330 F 1 0 05 00 00 SGR_A 18 32 05 23.0 190.9 0.8 10.0 564 1 1 0 05 00 00 05 05 30 --- 18 37 36 22.8 192.2 0.9 11.1 330 F 1 0 05 15 00 SGR_A 18 47 08 22.4 194.4 1.0 13.1 564 1 1 0 05 15 00 05 20 30 --- 18 52 39 22.1 195.7 1.1 14.3 330 F 1 0 05 30 00 NRAO530 19 02 10 35.7 206.9 1.5 21.8 541 1 1 0 05 30 00 05 35 30 --- 19 07 41 35.2 208.5 1.6 23.0 330 F 1 0 05 45 00 NRAO530 19 17 13 34.2 211.0 1.7 25.0 563 1 1 0 05 45 00 05 50 30 --- 19 22 44 33.6 212.5 1.8 26.1 330 F 1 0 06 00 00 1741-038 19 32 15 42.0 217.5 1.8 29.2 551 1 1 0 06 00 00 06 05 30 --- 19 37 46 41.3 219.1 1.9 30.3 330 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_picovel in freq.3mm 3-mm CMVA Setup group: 1 Station: PICOVEL 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= 85507.00 85507.00 85507.00 85507.00 85507.00 85507.00 85507.00 85507.00 85507.00 85507.00 85507.00 85507.00 85507.00 85507.00 85507.00 85507.00 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 = A A A A A A A A A A A A A A A A The following frequency sets based on this setup were used. Frequency Set: 2 Setup file default. Used pcal sets: 1 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= 650.99 650.99 682.99 682.99 714.99 714.99 746.99 746.99 778.99 778.99 810.99 810.99 842.99 842.99 874.99 874.99 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 The following pulse cal sets were used with this setup: Pulse cal detection set: 1 PCAL = 1MHZ PCALXB1= S1 S3 S5 S7 S9 S11 S13 S15 PCALXB2= S2 S4 S6 S8 S10 S12 S14 S16 PCALFR1= 990 990 990 990 990 990 990 990 PCALFR2= 10 10 10 10 10 10 10 10 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