COVER INFORMATION Station: VLBA_HN (Code Hn ) Experiment: Joint VLBA/VLTI observations of the Mira variables S Ori and V Mon Exp. Code: BB154A Schedule Version: 2.00 Processed by SCHED version: Release of 02 July 2002 PI: Dave Boboltz Address: U.S. Naval Observatory 3450 Massachusetts Ave., NW Washington, DC 20392-5420, USA Phone: 202-762-1488 EMAIL: dboboltz@usno.navy.mil Fax: 202-762-1514 Phone during observation: 703-819-3528 Observing mode: 128-2-2 7mm Notes: 128-2-2. RCP/LCP. 7mm VLBA 6hr track Schedule for VLBA_HN (Code Hn ) Page 2 Joint VLBA/VLTI observations of the Mira variables S Ori and V Mon 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) ---------------------------------------------------------------------------------------- --- Sun 29 Dec 2002 Day 363 --- Next scan frequencies: 42810.40 42810.40 43111.85 43111.85 Next BBC frequencies: 610.40 610.40 911.85 911.85 Next scan bandwidths: 8.00 8.00 8.00 8.00 02 42 55 0359+509 04 24 32 80.9 334.5 0.4 149.9 0 1 1 0 02 42 55 02 53 53 --- 04 35 32 79.9 326.0 0.6 139.4 658 F 1 8776 02 55 52 SORI 04 37 32 41.0 162.9 -0.9 -12.5 5 1 2 8776 02 55 52 03 17 49 --- 04 59 32 41.9 170.1 -0.5 -7.3 1316 R 1 8872 03 19 48 0133+476 05 01 32 54.5 296.1 3.4 78.5 30 1 2 8872 03 19 48 03 30 47 --- 05 12 32 52.6 296.8 3.6 77.0 658 R 1 96 03 32 46 SORI 05 14 32 42.3 175.1 -0.2 -3.6 33 1 2 96 03 32 46 03 54 43 --- 05 36 32 42.3 182.5 0.1 1.8 1316 R 2 17552 03 54 43 SORI 05 36 32 42.3 182.5 0.1 1.8 -6 1 2 17552 03 54 43 04 16 39 --- 05 58 32 41.9 189.9 0.5 7.2 1310 R 2 0 04 18 39 0133+476 06 00 32 44.9 300.2 4.4 70.6 40 1 3 0 04 18 39 04 29 37 --- 06 11 32 43.2 301.1 4.6 69.2 658 F 1 8776 04 31 37 SORI 06 13 32 41.3 194.8 0.7 10.8 43 1 4 8776 04 31 37 04 53 33 --- 06 35 32 40.1 201.8 1.1 15.9 1316 R 1 8872 04 55 33 0359+509 06 37 32 62.3 300.7 2.6 91.3 48 1 4 8872 04 55 33 05 06 31 --- 06 48 32 60.5 300.7 2.8 89.1 658 R 1 96 05 08 31 SORI 06 50 32 38.9 206.4 1.4 19.1 51 1 4 96 05 08 31 05 30 27 --- 07 12 32 36.9 212.9 1.7 23.5 1316 R 2 17552 05 30 27 SORI 07 12 32 36.9 212.9 1.7 23.5 -6 1 4 17552 05 30 27 05 52 23 --- 07 34 32 34.6 219.0 2.1 27.5 1310 R 2 0 05 54 23 0359+509 07 36 32 53.0 301.9 3.6 80.8 58 1 5 0 05 54 23 06 05 21 --- 07 47 32 51.3 302.4 3.8 79.1 658 F 1 8776 06 07 21 SORI 07 49 32 32.8 223.0 2.3 30.0 61 1 6 8776 06 07 21 06 29 17 --- 08 11 32 29.9 228.4 2.7 33.3 1316 R 1 8872 06 31 17 0359+509 08 13 32 47.3 303.8 4.2 75.1 63 1 6 8872 06 31 17 06 42 15 --- 08 24 32 45.7 304.5 4.4 73.4 658 R 1 96 Schedule for VLBA_HN (Code Hn ) Page 3 Joint VLBA/VLTI observations of the Mira variables S Ori and V Mon 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) ---------------------------------------------------------------------------------------- --- Sun 29 Dec 2002 Day 363 --- 06 44 15 SORI 08 26 32 27.8 231.9 3.0 35.3 65 1 6 96 06 44 15 07 06 11 --- 08 48 32 24.5 236.8 3.3 37.9 1316 R 2 17552 07 06 11 SORI 08 48 32 24.5 236.8 3.3 37.9 -6 1 6 17552 07 06 11 07 28 08 --- 09 10 32 21.1 241.5 3.7 40.2 1310 R 2 0 07 30 07 0359+509 09 12 32 38.6 308.0 5.2 66.4 69 1 7 0 07 30 07 07 41 06 --- 09 23 32 37.0 308.9 5.4 64.9 658 F 1 8776 07 43 05 SORI 09 25 32 18.6 244.5 3.9 41.5 71 1 8 8776 07 43 05 08 05 02 --- 09 47 32 14.9 248.7 4.3 43.2 1316 R 1 8872 08 07 01 0359+509 09 49 32 33.3 311.1 5.8 61.1 72 1 8 8872 08 07 01 08 18 00 --- 10 00 32 31.8 312.2 6.0 59.5 658 R 1 96 08 19 59 SORI 10 02 32 12.3 251.5 4.6 44.1 73 1 8 96 08 19 59 08 42 55 --- 10 25 32 8.3 255.6 4.9 45.4 1376 R 2 16754 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: bb154.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: 2 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. = RCP LCP RCP LCP BBC = 1 2 3 4 BBC SB= U U U U IF = A C A 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= 42810.40 42810.40 43111.85 43111.85 BBC fr= 610.40 610.40 911.85 911.85 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 track2= 3, 11, 19, 27 barrel=roll_auto SOURCE LIST -- Joint VLBA/VLTI observations of the Mira variables S Ori and V Mon 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) * 0133+476 01 33 55.103055 * 01 36 58.594800 01 37 08.881802 47 36 12.85361 * 47 51 29.10000 47 52 33.38979 From catalog imbedded in main SCHED input file. * 0359+509 03 55 45.261399 * 03 59 29.747300 03 59 43.450874 50 49 20.28605 * 50 57 50.16200 50 58 28.83348 From catalog imbedded in main SCHED input file. * SORI 05 26 32.603394 * 05 29 00.894800 05 29 10.197483 -04 43 53.21390 *-04 41 32.74800 -04 41 23.88678 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) 0133+476 117.8 0359+509 139.6 SORI 148.1 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