COVER INFORMATION Station: VLBA_PT (Code Pt ) Experiment: SiO near GC Exp. Code: BM177A Schedule Version: 2.00 Processed by SCHED version: Release of 02 July 2002 PI: Makoto Miyoshi Address: VERA Project Office National Astronomical Observatory 2-21-1, Osawa, Mitaka, Tokyo 181-8588, JAPAN Phone: 81 422 34 3937 EMAIL: miyoshi@miz.nao.ac.jp Fax: 81 422 34 3635 Phone during observation: 81 422 34 3937 Observing mode: VLBA Notes: Totally 4 passes are need, 1 pass for each IF. Exact coordinate of Sgr A* for correlation, which is different from that of the antenna pointing. SOURCE=SGRA RA=17:45:40.0392 DEC=-29:00:28.151 EPOCH=J2000 Schedule for VLBA_PT (Code Pt ) Page 2 SiO near GC 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 11 Jan 2003 Day 11 --- Next scan frequencies: 42811.19 42821.19 43112.64 43122.71 Next BBC frequencies: 611.19 621.19 912.64 922.71 Next scan bandwidths: 8.00 8.00 8.00 8.00 13 19 55 NRAO530 13 30 00 15.4 118.1 -4.1 -48.4 0 1 1 0 13 19 55 13 25 54 --- 13 36 00 16.5 119.2 -4.0 -47.8 359 F 1 4787 13 26 54 SGRA 13 37 00 3.6 129.2 -4.1 -47.1 28 1 1 4787 13 26 54 13 42 51 --- 13 53 00 6.2 131.6 -3.9 -44.9 957 F 1 17552 13 44 51 SGRA 13 55 00 6.5 131.9 -3.8 -44.7 113 1 2 17552 13 44 51 14 06 47 --- 14 17 00 9.8 135.5 -3.5 -41.5 1316 R 1 0 14 08 47 NRAO530 14 19 00 23.9 127.0 -3.2 -42.6 85 1 3 0 14 08 47 14 14 46 --- 14 25 00 24.9 128.2 -3.1 -41.8 359 F 1 4787 14 15 46 SGRA 14 26 00 11.0 137.0 -3.3 -40.1 26 1 3 4787 14 15 46 14 31 43 --- 14 42 00 13.2 139.8 -3.1 -37.6 957 F 1 17552 14 33 43 SGRA 14 44 00 13.5 140.1 -3.0 -37.3 113 1 4 17552 14 33 43 14 55 39 --- 15 06 00 16.3 144.2 -2.7 -33.6 1316 R 1 0 14 57 39 NRAO530 15 08 00 31.4 137.5 -2.4 -35.0 83 1 5 0 14 57 39 15 03 38 --- 15 14 00 32.2 138.9 -2.3 -33.9 359 F 1 4787 15 04 37 SGRA 15 15 00 17.4 145.9 -2.5 -32.0 24 1 5 4787 15 04 37 15 20 35 --- 15 31 00 19.1 149.1 -2.2 -29.0 957 F 1 17552 15 22 35 SGRA 15 33 00 19.3 149.5 -2.2 -28.7 113 1 6 17552 15 22 35 15 44 31 --- 15 55 00 21.5 154.1 -1.8 -24.4 1316 R 1 0 15 46 31 NRAO530 15 57 00 37.4 150.0 -1.6 -25.1 82 1 7 0 15 46 31 15 52 30 --- 16 03 00 38.0 151.7 -1.5 -23.7 359 F 1 4787 15 53 29 SGRA 16 04 00 22.3 156.0 -1.7 -22.6 22 1 7 4787 15 53 29 16 09 27 --- 16 20 00 23.5 159.6 -1.4 -19.2 957 F 1 17552 16 11 27 SGRA 16 22 00 23.7 160.0 -1.4 -18.8 113 1 8 17552 16 11 27 16 33 23 --- 16 44 00 25.0 165.1 -1.0 -14.1 1316 R 1 0 16 35 23 NRAO530 16 46 00 41.3 164.6 -0.8 -13.0 81 1 9 0 16 35 23 16 41 22 --- 16 52 00 41.6 166.5 -0.7 -11.4 359 F 1 4787 Schedule for VLBA_PT (Code Pt ) Page 3 SiO near GC 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 11 Jan 2003 Day 11 --- 16 42 21 SGRA 16 53 00 25.5 167.2 -0.9 -12.1 22 1 9 4787 16 42 21 16 58 19 --- 17 09 00 26.1 171.0 -0.6 -8.5 957 F 1 17552 17 00 18 SGRA 17 11 00 26.2 171.5 -0.6 -8.0 113 1 10 17552 17 00 18 17 22 15 --- 17 33 00 26.6 176.9 -0.2 -3.0 1316 R 1 0 17 24 15 NRAO530 17 35 00 42.6 180.6 0.0 0.5 82 1 11 0 17 24 15 17 30 14 --- 17 41 00 42.6 182.6 0.1 2.2 359 F 1 4787 17 31 13 SGRA 17 42 00 26.7 179.1 -0.1 -0.9 22 1 11 4787 17 31 13 17 47 11 --- 17 58 00 26.6 183.0 0.2 2.8 957 F 1 17552 17 49 10 SGRA 18 00 00 26.6 183.5 0.2 3.3 113 1 12 17552 17 49 10 18 11 07 --- 18 22 00 26.1 188.8 0.6 8.3 1316 R 1 0 18 13 07 NRAO530 18 24 00 41.1 196.5 0.8 14.0 84 1 13 0 18 13 07 18 19 06 --- 18 30 00 40.7 198.4 0.9 15.5 359 F 1 4787 18 20 05 SGRA 18 31 00 25.8 191.0 0.8 10.4 24 1 13 4787 18 20 05 18 36 03 --- 18 47 00 25.1 194.8 1.0 13.9 957 F 1 17552 18 38 02 SGRA 18 49 00 25.0 195.2 1.1 14.4 113 1 14 17552 18 38 02 18 59 59 --- 19 11 00 23.6 200.3 1.4 19.1 1316 R 1 0 ----------- Tape Change ------------ 19 01 59 NRAO530 19 13 00 37.0 211.0 1.7 25.9 87 2 1 0 19 01 59 19 07 58 --- 19 19 00 36.4 212.6 1.8 27.2 359 F 1 4787 19 08 57 SGRA 19 20 00 22.9 202.3 1.6 21.0 27 2 1 4787 19 08 57 19 24 55 --- 19 36 00 21.6 205.8 1.8 24.2 957 F 1 17552 19 26 54 SGRA 19 38 00 21.4 206.2 1.9 24.6 113 2 2 17552 19 26 54 19 48 51 --- 20 00 00 19.2 210.8 2.2 28.9 1316 R 1 0 19 50 50 NRAO530 20 02 00 30.9 223.3 2.5 35.6 90 2 3 0 19 50 50 19 56 49 --- 20 08 00 30.0 224.7 2.6 36.6 359 F 1 4787 19 57 49 SGRA 20 09 00 18.2 212.6 2.4 30.6 30 2 3 4787 19 57 49 20 13 47 --- 20 25 00 16.4 215.7 2.7 33.4 957 F 1 17552 20 15 46 SGRA 20 27 00 16.1 216.1 2.7 33.8 113 2 4 17552 20 15 46 20 37 43 --- 20 49 00 13.3 220.1 3.1 37.5 1316 R 1 0 Schedule for VLBA_PT (Code Pt ) Page 4 SiO near GC 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 11 Jan 2003 Day 11 --- 20 39 42 NRAO530 20 51 00 23.3 233.7 3.3 43.1 94 2 5 0 20 39 42 20 45 41 --- 20 57 00 22.3 234.8 3.4 43.9 359 F 1 4787 20 46 41 SGRA 20 58 00 12.1 221.7 3.2 38.9 33 2 5 4787 20 46 41 21 02 39 --- 21 14 00 9.9 224.4 3.5 41.4 957 F 1 17552 21 04 38 SGRA 21 16 00 9.6 224.8 3.5 41.7 113 2 6 17552 21 04 38 21 09 38 --- 21 21 00 8.8 225.6 3.6 42.4 299 R 1 13563 21 10 37 NRAO530 21 22 00 18.0 239.4 3.8 46.9 36 2 6 13563 21 10 37 21 16 36 --- 21 28 00 16.9 240.4 3.9 47.5 359 R 1 8776 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: bm177.set Matches group v7mm_b8 in /home/filehost/cwalker/sched/catalogs/freq.dat Setup group: 1 Station: VLBA Total bit rate: 128 Format: VLBA1:2 Bits per sample: 2 Sample rate: 16.000 Number of channels: 4 Passes/head pos: 1 Speedup factor: 1.00 Tape speeds: Low density - 266.660 ips, High density - 160.00 ips Time per pass for 17600 ft, High density tapes is: 00:22:00 1st LO= 42200.00 42200.00 42200.00 42200.00 Net SB= U U U U Pol. = LCP LCP LCP LCP BBC = 1 2 3 4 BBC SB= U U U U IF = C C C C VLBA FE= 7mm omit 7mm omit VLBA Synth= 15.4 7.4 11.6 The following frequency sets based on this setup were used. Frequency Set: 1 Based on FREQ, BW, and/or DOPPLER in schedule. Used pcal sets: 1 LO sum= 42811.19 42821.19 43112.64 43122.71 BBC fr= 611.19 621.19 912.64 922.71 Bandwd= 8.000 8.000 8.000 8.000 The following pulse cal sets were used with this setup: Pulse cal detection set: 1 PCAL = OFF PCALXB1= S1 S2 S3 S4 OFF OFF OFF OFF PCALXB2= M1 M2 M3 M4 OFF OFF OFF OFF PCALFR1= 0 0 0 0 0 0 0 0 PCALFR2= 0 0 0 0 0 0 0 0 Track assignments are: track1= 2, 10, 18, 26 barrel=roll_auto SOURCE LIST -- SiO near GC 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) 1730-130 17 30 13.535185 * 17 33 02.705782 17 33 10.672821 J1733-13 -13 02 45.83980 *-13 04 49.54828 -13 05 00.11961 * NRAO530 From catalog imbedded in main SCHED input file. USNO - Ref Frame 1998-6, Eubanks June 1998 * SGRA 17 42 30.276485 * 17 45 41.000000 17 45 49.962688 -28 59 00.48534 *-29 00 10.00000 -29 00 15.46892 From catalog imbedded in main SCHED input file. 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) NRAO530 29.4 SGRA 24.8 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