COVER INFORMATION Station: VLBA_LA (Code La ) Experiment: The spatial distribution of SiO masers in AGB at 43 and 86GHz. Exp. Code: BM178D Schedule Version: 4.20 Processed by SCHED version: Release of 02 July 2002 PI: Kevin B. Marvel Address: American Astronomical Society 2000 Florida Ave, NW,Suite 400 Washington, DC 20009-1231, USA Phone: 202-328-2010 EMAIL: marvel@aas.org, colomer@oan.es, desmurs@oan.es Fax: 202-234-2560 Phone during observation: Observing mode: VLBA Dual 3mm and 7mm observations Notes: Please use all available antennas LINE EXPERIMENT: Please DO NOT use phase cal signal Start time is optimal PT LST START for this source. Thank you. Schedule for VLBA_LA (Code La ) Page 2 The spatial distribution of SiO masers in AGB at 43 and 86GHz. 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 Dec 2002 Day 341 --- Next scan frequencies: 42819.41 42878.75 43120.93 43120.93 Next BBC frequencies: 619.41 678.75 920.93 920.93 Next scan bandwidths: 8.00 8.00 8.00 8.00 10 08 26 OJ287 08 07 30 71.2 143.2 -0.8 -31.1 0 1 1 0 10 08 26 10 14 25 --- 08 13 30 71.9 147.1 -0.7 -28.0 359 F 1 4787 10 15 01 RLEO 08 14 06 57.7 133.2 -1.6 -37.1 2 1 1 4787 10 15 01 10 30 58 --- 08 30 06 60.0 139.4 -1.3 -32.6 957 F 1 17552 10 31 04 RLEO 08 30 12 60.0 139.4 -1.3 -32.6 0 1 2 17552 10 30 58 10 47 02 --- 08 46 12 61.9 146.4 -1.0 -27.2 957 R 1 4706 10 49 01 OJ287 08 48 12 74.3 174.1 -0.1 -5.1 89 1 1 4706 10 49 01 10 55 00 --- 08 54 12 74.3 179.3 0.0 -0.6 359 F 2 81 ---------- Scan added by Sched for reference pointing ---------- Next scan frequencies: 43115.99 43115.99 43215.99 43215.99 Next BBC frequencies: 715.99 715.99 815.99 815.99 Next scan bandwidths: 4.00 4.00 4.00 4.00 10 56 53 P-3C273 08 56 06 30.4 111.8 -3.6 -48.9 19 1 1 81 Stopped 10 58 53 --- 08 58 06 30.7 112.2 -3.5 -48.7 120 S 2 81 Next scan frequencies: 86241.14 86241.14 Next BBC frequencies: 741.14 741.14 Next scan bandwidths: 16.00 16.00 10 59 00 3C273 08 58 12 30.8 112.2 -3.5 -48.7 0 1 1 81 10 59 00 11 09 58 --- 09 09 12 32.8 114.4 -3.3 -47.7 658 F 2 8857 ---------- Scan added by Sched for reference pointing ---------- Next scan frequencies: 43124.21 43124.21 43224.22 43224.22 Next BBC frequencies: 724.21 724.21 824.22 824.22 Next scan bandwidths: 2.00 2.00 2.00 2.00 11 11 21 P-RLEO 09 10 36 64.2 158.7 -0.6 -17.5 14 1 1 8857 Stopped 11 13 21 --- 09 12 36 64.4 159.8 -0.6 -16.6 120 S 2 8857 Schedule for VLBA_LA (Code La ) Page 3 The spatial distribution of SiO masers in AGB at 43 and 86GHz. 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 Dec 2002 Day 341 --- Next scan frequencies: 86241.14 86241.14 Next BBC frequencies: 741.14 741.14 Next scan bandwidths: 16.00 16.00 11 13 27 RLEO 09 12 42 64.4 159.8 -0.6 -16.6 0 1 2 8857 11 13 27 11 24 25 --- 09 23 42 65.0 165.9 -0.4 -11.6 658 R 2 17567 ---------- Scan added by Sched for reference pointing ---------- Next scan frequencies: 43124.21 43124.21 43224.22 43224.22 Next BBC frequencies: 724.21 724.21 824.22 824.22 Next scan bandwidths: 2.00 2.00 2.00 2.00 11 25 19 P-RLEO 09 24 36 65.1 166.5 -0.4 -11.2 47 1 2 17567 Stopped 11 27 19 --- 09 26 36 65.2 167.6 -0.4 -10.2 120 S 2 17567 Next scan frequencies: 86241.14 86241.14 Next BBC frequencies: 741.14 741.14 Next scan bandwidths: 16.00 16.00 11 27 25 RLEO 09 26 42 65.2 167.7 -0.4 -10.2 0 1 2 17567 11 27 25 11 38 23 --- 09 37 42 65.5 174.1 -0.2 -4.9 658 R 2 8791 ---------- Scan added by Sched for reference pointing ---------- Next scan frequencies: 43115.99 43115.99 43215.99 43215.99 Next BBC frequencies: 715.99 715.99 815.99 815.99 Next scan bandwidths: 4.00 4.00 4.00 4.00 11 39 46 P-3C273 09 39 06 38.2 120.7 -2.8 -44.3 23 1 2 8791 Stopped 11 41 46 --- 09 41 06 38.5 121.2 -2.8 -44.0 120 S 2 8791 Next scan frequencies: 86241.14 86241.14 Next BBC frequencies: 741.14 741.14 Next scan bandwidths: 16.00 16.00 11 41 53 3C273 09 41 12 38.6 121.2 -2.8 -44.0 0 1 2 8791 11 41 53 11 52 51 --- 09 52 12 40.4 123.8 -2.6 -42.4 658 R 2 15 Schedule for VLBA_LA (Code La ) Page 4 The spatial distribution of SiO masers in AGB at 43 and 86GHz. 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 Dec 2002 Day 341 --- ---------- Scan added by Sched for reference pointing ---------- Next scan frequencies: 43124.21 43124.21 43224.22 43224.22 Next BBC frequencies: 724.21 724.21 824.22 824.22 Next scan bandwidths: 2.00 2.00 2.00 2.00 11 54 14 P-RLEO 09 53 36 65.6 183.5 0.1 2.9 27 1 2 15 Stopped 11 56 14 --- 09 55 36 65.6 184.7 0.1 3.9 120 S 2 -15 Next scan frequencies: 86241.14 86241.14 Next BBC frequencies: 741.14 741.14 Next scan bandwidths: 16.00 16.00 11 56 20 RLEO 09 55 42 65.6 184.7 0.1 3.9 0 1 3 -15 11 56 20 12 18 17 --- 10 17 42 64.7 197.4 0.5 14.4 1316 F 1 17536 ---------- Scan added by Sched for reference pointing ---------- Next scan frequencies: 43124.21 43124.21 43224.22 43224.22 Next BBC frequencies: 724.21 724.21 824.22 824.22 Next scan bandwidths: 2.00 2.00 2.00 2.00 12 18 48 P-RLEO 10 18 14 64.7 197.7 0.5 14.6 25 1 4 17536 Stopped 12 20 48 --- 10 20 14 64.6 198.8 0.5 15.5 120 S 1 17536 Next scan frequencies: 86241.14 86241.14 Next BBC frequencies: 741.14 741.14 Next scan bandwidths: 16.00 16.00 12 22 16 3C273 10 21 42 45.2 131.5 -2.1 -37.4 37 1 4 17536 12 22 16 12 33 14 --- 10 32 42 46.8 134.7 -1.9 -35.2 658 R 1 8760 Schedule for VLBA_LA (Code La ) Page 5 The spatial distribution of SiO masers in AGB at 43 and 86GHz. 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 Dec 2002 Day 341 --- ---------- Scan added by Sched for reference pointing ---------- Next scan frequencies: 43124.21 43124.21 43224.22 43224.22 Next BBC frequencies: 724.21 724.21 824.22 824.22 Next scan bandwidths: 2.00 2.00 2.00 2.00 12 35 07 P-RLEO 10 34 36 63.4 206.4 0.8 21.6 59 1 4 8760 Stopped 12 37 07 --- 10 36 36 63.2 207.5 0.8 22.4 120 S 1 8760 Next scan frequencies: 86241.14 86241.14 Next BBC frequencies: 741.14 741.14 Next scan bandwidths: 16.00 16.00 12 37 13 RLEO 10 36 42 63.2 207.5 0.8 22.5 0 1 4 8760 12 37 13 12 48 12 --- 10 47 42 62.1 212.8 1.0 26.7 658 R 1 -15 ---------- Scan added by Sched for reference pointing ---------- Next scan frequencies: 43124.21 43124.21 43224.22 43224.22 Next BBC frequencies: 724.21 724.21 824.22 824.22 Next scan bandwidths: 2.00 2.00 2.00 2.00 12 49 05 P-RLEO 10 48 36 62.0 213.3 1.0 27.0 47 1 4 -15 Stopped 12 51 05 --- 10 50 36 61.8 214.2 1.0 27.7 120 S 1 15 Next scan frequencies: 86241.14 86241.14 Next BBC frequencies: 741.14 741.14 Next scan bandwidths: 16.00 16.00 12 51 11 RLEO 10 50 42 61.8 214.2 1.0 27.8 0 1 3 15 12 51 11 13 02 09 --- 11 01 42 60.4 219.1 1.2 31.5 658 F 2 8791 Schedule for VLBA_LA (Code La ) Page 6 The spatial distribution of SiO masers in AGB at 43 and 86GHz. 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 Dec 2002 Day 341 --- ---------- Scan added by Sched for reference pointing ---------- Next scan frequencies: 43115.99 43115.99 43215.99 43215.99 Next BBC frequencies: 715.99 715.99 815.99 815.99 Next scan bandwidths: 4.00 4.00 4.00 4.00 13 04 03 P-3C273 11 03 36 50.9 144.7 -1.4 -28.0 58 1 3 8791 Stopped 13 06 03 --- 11 05 36 51.1 145.4 -1.4 -27.5 120 S 2 8791 Next scan frequencies: 86241.14 86241.14 Next BBC frequencies: 741.14 741.14 Next scan bandwidths: 16.00 16.00 13 06 09 3C273 11 05 42 51.1 145.4 -1.4 -27.4 0 1 3 8791 13 06 09 13 17 07 --- 11 16 42 52.3 149.4 -1.2 -24.4 658 F 2 17567 ---------- Scan added by Sched for reference pointing ---------- Next scan frequencies: 43124.21 43124.21 43224.22 43224.22 Next BBC frequencies: 724.21 724.21 824.22 824.22 Next scan bandwidths: 2.00 2.00 2.00 2.00 13 19 00 P-RLEO 11 18 36 58.1 225.8 1.5 36.4 56 1 4 17567 Stopped 13 21 00 --- 11 20 36 57.8 226.6 1.5 36.9 120 S 2 17567 Next scan frequencies: 86241.14 86241.14 Next BBC frequencies: 741.14 741.14 Next scan bandwidths: 16.00 16.00 13 21 06 RLEO 11 20 42 57.8 226.6 1.5 37.0 0 1 4 17567 13 21 06 13 43 03 --- 11 42 42 54.4 234.1 1.9 42.1 1316 R 2 15 Schedule for VLBA_LA (Code La ) Page 7 The spatial distribution of SiO masers in AGB at 43 and 86GHz. 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 Dec 2002 Day 341 --- ---------- Scan added by Sched for reference pointing ---------- Next scan frequencies: 43115.99 43115.99 43215.99 43215.99 Next BBC frequencies: 715.99 715.99 815.99 815.99 Next scan bandwidths: 4.00 4.00 4.00 4.00 13 44 56 P-3C273 11 44 36 54.7 160.4 -0.7 -15.8 58 1 4 15 Stopped 13 46 56 --- 11 46 36 54.8 161.3 -0.7 -15.1 120 S 2 -15 Next scan frequencies: 86241.14 86241.14 Next BBC frequencies: 741.14 741.14 Next scan bandwidths: 16.00 16.00 13 47 02 3C273 11 46 42 54.9 161.3 -0.7 -15.1 0 1 5 -15 13 47 02 13 58 00 --- 11 57 42 55.5 166.0 -0.5 -11.3 658 F 1 8761 ---------- Scan added by Sched for reference pointing ---------- Next scan frequencies: 43124.21 43124.21 43224.22 43224.22 Next BBC frequencies: 724.21 724.21 824.22 824.22 Next scan bandwidths: 2.00 2.00 2.00 2.00 13 59 53 P-RLEO 11 59 36 51.5 239.0 2.2 45.2 59 1 5 8761 Stopped 14 01 53 --- 12 01 36 51.2 239.6 2.2 45.5 120 S 1 8761 Next scan frequencies: 86241.14 86241.14 Next BBC frequencies: 741.14 741.14 Next scan bandwidths: 16.00 16.00 14 02 00 RLEO 12 01 42 51.2 239.6 2.2 45.6 0 1 5 8761 14 02 00 14 12 58 --- 12 12 42 49.2 242.5 2.4 47.2 658 F 1 17536 Schedule for VLBA_LA (Code La ) Page 8 The spatial distribution of SiO masers in AGB at 43 and 86GHz. 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 Dec 2002 Day 341 --- ---------- Scan added by Sched for reference pointing ---------- Next scan frequencies: 43124.21 43124.21 43224.22 43224.22 Next BBC frequencies: 724.21 724.21 824.22 824.22 Next scan bandwidths: 2.00 2.00 2.00 2.00 14 13 51 P-RLEO 12 13 36 49.0 242.7 2.4 47.4 47 1 6 17536 Stopped 14 15 51 --- 12 15 36 48.7 243.2 2.5 47.7 120 S 1 17536 Next scan frequencies: 86241.14 86241.14 Next BBC frequencies: 741.14 741.14 Next scan bandwidths: 16.00 16.00 14 15 57 RLEO 12 15 42 48.7 243.3 2.5 47.7 0 1 6 17536 14 15 57 14 26 55 --- 12 26 42 46.6 245.9 2.6 49.1 658 R 1 8761 ---------- Scan added by Sched for reference pointing ---------- Next scan frequencies: 43115.99 43115.99 43215.99 43215.99 Next BBC frequencies: 715.99 715.99 815.99 815.99 Next scan bandwidths: 4.00 4.00 4.00 4.00 14 28 49 P-3C273 12 28 36 56.3 179.7 0.0 -0.2 63 1 6 8761 Stopped 14 30 49 --- 12 30 36 56.3 180.6 0.0 0.5 120 S 1 8761 Next scan frequencies: 86241.14 86241.14 Next BBC frequencies: 741.14 741.14 Next scan bandwidths: 16.00 16.00 14 30 55 3C273 12 30 42 56.3 180.7 0.0 0.5 0 1 6 8761 14 30 55 14 41 53 --- 12 41 42 56.1 185.6 0.2 4.5 658 R 1 -15 Schedule for VLBA_LA (Code La ) Page 9 The spatial distribution of SiO masers in AGB at 43 and 86GHz. 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 Dec 2002 Day 341 --- ---------- Scan added by Sched for reference pointing ---------- Next scan frequencies: 43124.21 43124.21 43224.22 43224.22 Next BBC frequencies: 724.21 724.21 824.22 824.22 Next scan bandwidths: 2.00 2.00 2.00 2.00 14 43 46 P-RLEO 12 43 35 43.5 249.7 2.9 50.9 64 1 6 -15 Stopped 14 45 46 --- 12 45 36 43.1 250.1 3.0 51.1 120 S 1 15 Next scan frequencies: 86241.14 86241.14 Next BBC frequencies: 741.14 741.14 Next scan bandwidths: 16.00 16.00 14 45 52 RLEO 12 45 42 43.1 250.1 3.0 51.1 0 1 5 15 14 45 52 14 56 51 --- 12 56 42 41.0 252.4 3.1 52.1 658 F 2 8791 ---------- Scan added by Sched for reference pointing ---------- Next scan frequencies: 43115.99 43115.99 43215.99 43215.99 Next BBC frequencies: 715.99 715.99 815.99 815.99 Next scan bandwidths: 4.00 4.00 4.00 4.00 14 58 44 P-3C273 12 58 36 55.6 193.1 0.5 10.6 68 1 5 8791 Stopped 15 00 44 --- 13 00 36 55.5 193.9 0.5 11.3 120 S 2 8791 Next scan frequencies: 86241.14 86241.14 Next BBC frequencies: 741.14 741.14 Next scan bandwidths: 16.00 16.00 15 00 50 3C273 13 00 42 55.5 194.0 0.5 11.3 0 1 5 8791 15 00 50 15 11 48 --- 13 11 42 54.9 198.7 0.7 15.0 658 F 2 17567 Next scan frequencies: 42819.41 42878.75 43120.93 43120.93 Next BBC frequencies: 619.41 678.75 920.93 920.93 Next scan bandwidths: 8.00 8.00 8.00 8.00 15 13 43 OJ287 13 13 37 31.8 273.0 4.3 59.6 59 1 6 17567 15 13 43 15 19 42 --- 13 19 37 30.6 273.8 4.4 59.5 359 R 2 12781 Schedule for VLBA_LA (Code La ) Page 10 The spatial distribution of SiO masers in AGB at 43 and 86GHz. 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 Dec 2002 Day 341 --- 15 20 34 RLEO 13 20 29 36.3 256.9 3.5 53.7 34 1 6 12781 15 20 34 15 36 31 --- 13 36 29 33.1 259.7 3.8 54.5 957 R 2 15 15 36 37 RLEO 13 36 35 33.1 259.7 3.8 54.5 0 1 8 15 15 36 31 15 58 34 --- 13 58 35 28.7 263.3 4.2 55.3 1316 R 1 17552 15 59 04 OJ287 13 59 06 22.6 279.1 5.1 58.5 12 1 8 17552 15 59 04 16 05 03 --- 14 05 06 21.4 279.9 5.2 58.3 359 R 1 12765 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: bm178_7mm.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. = LCP LCP LCP RCP BBC = 1 2 3 4 BBC SB= U U U U IF = C C C A 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= 42819.41 42878.75 43120.93 43120.93 BBC fr= 619.41 678.75 920.93 920.93 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 Setup file: bm178_pt.set Matches group v7mm_c8 in /home/filehost/cwalker/sched/catalogs/freq.dat Setup group: 9 Station: VLBA Total bit rate: 64 Format: NONE Bits per sample: 2 Sample rate: 8.000 Number of channels: 4 Passes/head pos: 0 Speedup factor: 0.00 1st LO= 42400.00 42400.00 42400.00 42400.00 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 7.6 11.6 The following frequency sets based on this setup were used. Frequency Set: 2 Setup file default. Used pcal sets: 1 LO sum= 43115.99 43115.99 43215.99 43215.99 BBC fr= 715.99 715.99 815.99 815.99 Bandwd= 4.000 4.000 4.000 4.000 Frequency Set: 9 Based on FREQ, BW, and/or DOPPLER in schedule. Used pcal sets: 1 LO sum= 43124.21 43124.21 43224.22 43224.22 BBC fr= 724.21 724.21 824.22 824.22 Bandwd= 2.000 2.000 2.000 2.000 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: barrel=roll_off Setup file: bm178_3mm-b.set Matches group v3mm_a in /home/filehost/cwalker/sched/catalogs/freq.dat Setup group: 3 Station: VLBA_LA Total bit rate: 128 Format: VLBA1:4 Bits per sample: 2 Sample rate: 32.000 Number of channels: 2 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= 85500.00 85500.00 Net SB= U U Pol. = RCP LCP BBC = 1 2 BBC SB= U U IF = B D VLBA FE= omit 3mm omit 3mm VLBA Synth= 14.1 15.4 11.9 The following frequency sets based on this setup were used. Frequency Set: 5 Based on FREQ, BW, and/or DOPPLER in schedule. Used pcal sets: 2 LO sum= 86241.14 86241.14 BBC fr= 741.14 741.14 Bandwd= 16.000 16.000 The following pulse cal sets were used with this setup: Pulse cal detection set: 2 PCAL = OFF PCALXB1= S1 S2 OFF OFF OFF OFF OFF OFF PCALXB2= M1 M2 OFF OFF 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, 18 track2= 3, 19 barrel=roll_auto SOURCE LIST -- The spatial distribution of SiO masers in AGB at 43 and 86GHz. 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) * RLEO 09 44 52.219889 * 09 47 33.490400 09 47 42.401798 11 39 39.74816 * 11 25 43.64600 11 24 59.58585 From catalog imbedded in main SCHED input file. * 3C273 12 26 33.245833 * 12 29 06.699729 12 29 14.222800 02 19 43.30569 * 02 03 08.59819 02 02 17.75238 From catalog imbedded in main SCHED input file. ICRF - Ext.1 Source - 1998 IERS Annual Report * OJ287 08 51 57.250612 * 08 54 48.874924 08 54 58.662867 20 17 58.41743 * 20 06 30.64088 20 05 52.55718 From catalog imbedded in main SCHED input file. ICRF - Ext.1 Source - 1998 IERS Annual Report * P-RLEO 09 44 52.219889 * 09 47 33.490400 09 47 42.401798 11 39 39.74816 * 11 25 43.64600 11 24 59.58585 From catalog imbedded in main SCHED input file. * P-3C273 12 26 33.245833 * 12 29 06.699729 12 29 14.222800 02 19 43.30569 * 02 03 08.59819 02 02 17.75238 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) RLEO 110.0 3C273 69.4 OJ287 124.7 P-RLEO 110.0 P-3C273 69.4 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