COVER INFORMATION Station: VLBA_LA (Code La ) Experiment: BH127A, VLBA, 128 MBPS, 1/2/4 cm, 6 HRS (DYNAMIC), HOUGH Exp. Code: BH127A Schedule Version: 1.00 Processed by SCHED version: NRAO internal release of 4 October 2004 PI: David H. Hough Address: Dept. of Physics & Astronomy Trinity University San Antonio, TX 78212-7200 Phone: 210-999-7466 (work) or 210-824-0358 (home) EMAIL: dhough@trinity.edu Fax: 210-999-7423 Phone during observation: 210-999-7466 (work) or 210-824-0358 (home) Observing mode: VLBA 128-4-2; 1/2/4 cm Notes: Part A: First of Six 6-hr sessions Program sources: 3C207, 3C245 Fringe finders and amplitude check: 3C286, OJ287 Schedule for VLBA_LA (Code La ) Page 2 BH127A, VLBA, 128 MBPS, 1/2/4 cm, 6 HRS (DYNAMIC), HOUGH 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 9 Jan 2005 Day 9 --- Next scan frequencies: 22217.49 22225.49 22233.49 22241.49 Next BBC frequencies: 717.49 725.49 733.49 741.49 Next scan bandwidths: 8.00 8.00 8.00 8.00 07 06 49 OJ287 07 17 31 63.5 119.7 -1.6 -48.6 0 1 1 0 07 06 49 07 09 47 --- 07 20 30 64.0 120.8 -1.6 -47.9 178 F 1 1186 Next scan frequencies: 15349.49 15357.49 15365.49 15373.49 Next BBC frequencies: 749.49 757.49 765.49 773.49 07 09 47 OJ287 07 20 30 64.0 120.8 -1.6 -47.9 -4 1 1 1186 07 09 47 07 11 46 --- 07 22 30 64.3 121.5 -1.5 -47.5 116 F 1 1984 Next scan frequencies: 8405.49 8413.49 8421.49 8429.49 Next BBC frequencies: 805.49 813.49 821.49 829.49 07 11 46 OJ287 07 22 30 64.3 121.5 -1.5 -47.5 -4 1 1 1984 07 11 46 07 13 46 --- 07 24 30 64.7 122.2 -1.5 -47.0 116 F 1 2781 07 13 46 3C207 07 24 30 61.6 137.8 -1.3 -34.0 -16 1 1 2781 07 13 46 07 18 45 --- 07 29 30 62.3 140.0 -1.2 -32.4 283 F 1 4776 Next scan frequencies: 15349.49 15357.49 15365.49 15373.49 Next BBC frequencies: 749.49 757.49 765.49 773.49 07 18 45 3C207 07 29 30 62.3 140.0 -1.2 -32.4 -4 1 1 4776 07 18 45 07 22 45 --- 07 33 30 62.8 141.8 -1.1 -31.0 235 F 1 6372 Next scan frequencies: 22217.49 22225.49 22233.49 22241.49 Next BBC frequencies: 717.49 725.49 733.49 741.49 07 22 45 3C207 07 33 30 62.8 141.8 -1.1 -31.0 -4 1 1 6372 07 22 45 07 32 43 --- 07 43 30 64.0 146.5 -1.0 -27.4 594 F 1 10361 07 32 43 3C245 07 43 30 43.2 108.9 -3.0 -51.7 -48 1 1 10361 07 32 43 07 42 41 --- 07 53 30 45.1 111.0 -2.8 -50.7 551 F 1 14350 Next scan frequencies: 15349.49 15357.49 15365.49 15373.49 Next BBC frequencies: 749.49 757.49 765.49 773.49 07 42 41 3C245 07 53 30 45.1 111.0 -2.8 -50.7 -4 1 1 14350 07 42 41 07 46 41 --- 07 57 30 45.8 111.9 -2.8 -50.3 235 F 1 15945 Schedule for VLBA_LA (Code La ) Page 3 BH127A, VLBA, 128 MBPS, 1/2/4 cm, 6 HRS (DYNAMIC), HOUGH 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 9 Jan 2005 Day 9 --- Next scan frequencies: 8405.49 8413.49 8421.49 8429.49 Next BBC frequencies: 805.49 813.49 821.49 829.49 07 46 41 3C245 07 57 30 45.8 111.9 -2.8 -50.3 -4 1 1 15945 07 46 41 07 50 40 --- 08 01 30 46.6 112.8 -2.7 -49.9 235 F 1 17541 07 53 40 3C207 08 04 30 66.0 157.7 -0.6 -18.5 135 1 2 17541 07 53 40 07 58 39 --- 08 09 30 66.3 160.5 -0.5 -16.1 299 R 1 15550 Next scan frequencies: 15349.49 15357.49 15365.49 15373.49 Next BBC frequencies: 749.49 757.49 765.49 773.49 07 58 39 3C207 08 09 30 66.3 160.5 -0.5 -16.1 -4 1 2 15550 07 58 39 08 03 38 --- 08 14 30 66.6 163.5 -0.4 -13.7 295 R 1 13555 Next scan frequencies: 22217.49 22225.49 22233.49 22241.49 Next BBC frequencies: 717.49 725.49 733.49 741.49 08 03 38 3C207 08 14 30 66.6 163.5 -0.4 -13.7 -4 1 2 13555 08 03 38 08 15 36 --- 08 26 30 67.2 170.8 -0.2 -7.6 714 R 1 8768 08 15 36 3C245 08 26 30 51.1 119.0 -2.3 -46.5 -41 1 2 8768 08 15 36 08 27 34 --- 08 38 30 53.2 122.4 -2.1 -44.5 677 R 1 3981 Next scan frequencies: 15349.49 15357.49 15365.49 15373.49 Next BBC frequencies: 749.49 757.49 765.49 773.49 08 27 34 3C245 08 38 30 53.2 122.4 -2.1 -44.5 -4 1 2 3981 08 27 34 08 32 33 --- 08 43 30 54.1 123.8 -2.0 -43.6 295 R 1 1987 Next scan frequencies: 8405.49 8413.49 8421.49 8429.49 Next BBC frequencies: 805.49 813.49 821.49 829.49 08 32 33 3C245 08 43 30 54.1 123.8 -2.0 -43.6 -4 1 2 1987 08 32 33 08 37 32 --- 08 48 30 54.9 125.4 -1.9 -42.6 295 R 1 -8 08 40 32 3C207 08 51 30 67.3 186.6 0.2 5.5 133 1 3 -8 08 40 32 08 45 31 --- 08 56 30 67.1 189.7 0.3 8.1 299 F 1 1984 Schedule for VLBA_LA (Code La ) Page 4 BH127A, VLBA, 128 MBPS, 1/2/4 cm, 6 HRS (DYNAMIC), HOUGH 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 9 Jan 2005 Day 9 --- Next scan frequencies: 15349.49 15357.49 15365.49 15373.49 Next BBC frequencies: 749.49 757.49 765.49 773.49 08 45 31 3C207 08 56 30 67.1 189.7 0.3 8.1 -4 1 3 1984 08 45 31 08 50 30 --- 09 01 30 67.0 192.8 0.3 10.6 295 F 1 3978 Next scan frequencies: 22217.49 22225.49 22233.49 22241.49 Next BBC frequencies: 717.49 725.49 733.49 741.49 08 50 30 3C207 09 01 30 67.0 192.8 0.3 10.6 -4 1 3 3978 08 50 30 09 02 28 --- 09 13 30 66.3 199.9 0.5 16.5 714 F 1 8765 09 02 28 3C245 09 13 30 58.8 134.0 -1.5 -36.6 -50 1 3 8765 09 02 28 09 14 26 --- 09 25 30 60.5 138.8 -1.3 -33.1 668 F 1 13552 Next scan frequencies: 15349.49 15357.49 15365.49 15373.49 Next BBC frequencies: 749.49 757.49 765.49 773.49 09 14 26 3C245 09 25 30 60.5 138.8 -1.3 -33.1 -4 1 3 13552 09 14 26 09 19 25 --- 09 30 30 61.2 140.9 -1.2 -31.6 295 F 1 15546 Next scan frequencies: 8405.49 8413.49 8421.49 8429.49 Next BBC frequencies: 805.49 813.49 821.49 829.49 09 19 25 3C245 09 30 30 61.2 140.9 -1.2 -31.6 -4 1 3 15546 09 19 25 09 24 25 --- 09 35 30 61.8 143.1 -1.1 -29.9 295 F 1 17541 09 27 25 3C207 09 38 30 64.0 213.4 1.0 27.3 127 1 4 17541 09 27 25 09 32 23 --- 09 43 30 63.4 215.8 1.0 29.2 299 R 1 15550 Next scan frequencies: 15349.49 15357.49 15365.49 15373.49 Next BBC frequencies: 749.49 757.49 765.49 773.49 09 32 23 3C207 09 43 30 63.4 215.8 1.0 29.2 -4 1 4 15550 09 32 23 09 37 22 --- 09 48 30 62.8 218.1 1.1 31.0 295 R 1 13555 Next scan frequencies: 22217.49 22225.49 22233.49 22241.49 Next BBC frequencies: 717.49 725.49 733.49 741.49 09 37 22 3C207 09 48 30 62.8 218.1 1.1 31.0 -4 1 4 13555 09 37 22 09 49 20 --- 10 00 30 61.2 223.4 1.3 34.9 714 R 1 8768 Schedule for VLBA_LA (Code La ) Page 5 BH127A, VLBA, 128 MBPS, 1/2/4 cm, 6 HRS (DYNAMIC), HOUGH 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 9 Jan 2005 Day 9 --- 09 49 20 3C245 10 00 30 64.4 155.3 -0.7 -20.3 -51 1 4 8768 09 49 20 10 01 18 --- 10 12 30 65.3 161.9 -0.5 -14.9 667 R 1 3981 Next scan frequencies: 15349.49 15357.49 15365.49 15373.49 Next BBC frequencies: 749.49 757.49 765.49 773.49 10 01 18 3C245 10 12 30 65.3 161.9 -0.5 -14.9 -4 1 4 3981 10 01 18 10 06 18 --- 10 17 30 65.6 164.8 -0.4 -12.6 295 R 1 1987 Next scan frequencies: 8405.49 8413.49 8421.49 8429.49 Next BBC frequencies: 805.49 813.49 821.49 829.49 10 06 18 3C245 10 17 30 65.6 164.8 -0.4 -12.6 -4 1 4 1987 10 06 18 10 11 17 --- 10 22 30 65.8 167.7 -0.3 -10.2 295 R 1 -8 10 14 17 3C207 10 25 30 57.4 232.7 1.7 41.5 131 1 5 -8 10 14 17 10 19 16 --- 10 30 30 56.6 234.4 1.8 42.6 299 F 1 1984 Next scan frequencies: 15349.49 15357.49 15365.49 15373.49 Next BBC frequencies: 749.49 757.49 765.49 773.49 10 19 16 3C207 10 30 30 56.6 234.4 1.8 42.6 -4 1 5 1984 10 19 16 10 24 15 --- 10 35 30 55.8 236.0 1.9 43.7 295 F 1 3978 Next scan frequencies: 22217.49 22225.49 22233.49 22241.49 Next BBC frequencies: 717.49 725.49 733.49 741.49 10 24 15 3C207 10 35 30 55.8 236.0 1.9 43.7 -4 1 5 3978 10 24 15 10 36 13 --- 10 47 30 53.7 239.6 2.1 45.9 714 F 1 8765 10 36 13 3C245 10 47 30 66.2 182.7 0.1 2.3 -44 1 5 8765 10 36 13 10 48 11 --- 10 59 30 66.0 189.9 0.3 8.2 674 F 1 13552 Next scan frequencies: 15349.49 15357.49 15365.49 15373.49 Next BBC frequencies: 749.49 757.49 765.49 773.49 10 48 11 3C245 10 59 30 66.0 189.9 0.3 8.2 -4 1 5 13552 10 48 11 10 53 10 --- 11 04 30 65.8 192.9 0.4 10.7 295 F 1 15546 Schedule for VLBA_LA (Code La ) Page 6 BH127A, VLBA, 128 MBPS, 1/2/4 cm, 6 HRS (DYNAMIC), HOUGH 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 9 Jan 2005 Day 9 --- Next scan frequencies: 8405.49 8413.49 8421.49 8429.49 Next BBC frequencies: 805.49 813.49 821.49 829.49 10 53 10 3C245 11 04 30 65.8 192.9 0.4 10.7 -4 1 5 15546 10 53 10 10 58 09 --- 11 09 30 65.5 195.8 0.4 13.0 295 F 1 17541 11 01 09 3C207 11 12 30 49.2 246.1 2.5 49.6 140 1 6 17541 11 01 09 11 06 08 --- 11 17 30 48.3 247.3 2.6 50.3 299 R 1 15550 Next scan frequencies: 15349.49 15357.49 15365.49 15373.49 Next BBC frequencies: 749.49 757.49 765.49 773.49 11 06 08 3C207 11 17 30 48.3 247.3 2.6 50.3 -4 1 6 15550 11 06 08 11 11 07 --- 11 22 30 47.3 248.5 2.7 50.8 295 R 1 13555 Next scan frequencies: 22217.49 22225.49 22233.49 22241.49 Next BBC frequencies: 717.49 725.49 733.49 741.49 11 11 07 3C207 11 22 30 47.3 248.5 2.7 50.8 -4 1 6 13555 11 11 07 11 23 05 --- 11 34 30 45.1 251.1 2.9 52.0 714 R 1 8768 11 23 05 3C245 11 34 30 63.6 209.3 0.9 23.9 -43 1 6 8768 11 23 05 11 35 03 --- 11 46 30 62.3 215.1 1.1 28.5 675 R 1 3981 Next scan frequencies: 15349.49 15357.49 15365.49 15373.49 Next BBC frequencies: 749.49 757.49 765.49 773.49 11 35 03 3C245 11 46 30 62.3 215.1 1.1 28.5 -4 1 6 3981 11 35 03 11 40 02 --- 11 51 30 61.7 217.3 1.1 30.2 295 R 1 1987 Next scan frequencies: 8405.49 8413.49 8421.49 8429.49 Next BBC frequencies: 805.49 813.49 821.49 829.49 11 40 02 3C245 11 51 30 61.7 217.3 1.1 30.2 -4 1 6 1987 11 40 02 11 45 01 --- 11 56 30 61.0 219.5 1.2 31.9 295 R 1 -8 11 48 01 3C207 11 59 30 40.2 256.1 3.3 54.0 132 1 7 -8 11 48 01 11 53 00 --- 12 04 30 39.2 257.0 3.4 54.3 299 F 1 1984 Schedule for VLBA_LA (Code La ) Page 7 BH127A, VLBA, 128 MBPS, 1/2/4 cm, 6 HRS (DYNAMIC), HOUGH 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 9 Jan 2005 Day 9 --- Next scan frequencies: 15349.49 15357.49 15365.49 15373.49 Next BBC frequencies: 749.49 757.49 765.49 773.49 11 53 00 3C207 12 04 30 39.2 257.0 3.4 54.3 -4 1 7 1984 11 53 00 11 56 59 --- 12 08 30 38.4 257.7 3.5 54.5 235 F 1 3579 Next scan frequencies: 22217.49 22225.49 22233.49 22241.49 Next BBC frequencies: 717.49 725.49 733.49 741.49 11 56 59 3C207 12 08 30 38.4 257.7 3.5 54.5 -4 1 7 3579 11 56 59 12 06 58 --- 12 18 30 36.4 259.5 3.6 55.0 594 F 1 7568 12 06 58 3C245 12 18 30 57.9 228.2 1.6 38.2 -49 1 7 7568 12 06 58 12 16 56 --- 12 28 30 56.4 231.7 1.8 40.6 549 F 1 11557 Next scan frequencies: 15349.49 15357.49 15365.49 15373.49 Next BBC frequencies: 749.49 757.49 765.49 773.49 12 16 56 3C245 12 28 30 56.4 231.7 1.8 40.6 -4 1 7 11557 12 16 56 12 20 56 --- 12 32 30 55.7 233.0 1.8 41.5 235 F 1 13153 Next scan frequencies: 8405.49 8413.49 8421.49 8429.49 Next BBC frequencies: 805.49 813.49 821.49 829.49 12 20 56 3C245 12 32 30 55.7 233.0 1.8 41.5 -4 1 7 13153 12 20 56 12 24 55 --- 12 36 30 55.1 234.3 1.9 42.3 235 F 1 14749 12 29 55 3C286 12 41 30 78.3 113.4 -0.8 -59.8 213 1 7 14749 12 29 55 12 31 54 --- 12 43 30 78.7 114.5 -0.8 -59.0 119 F 1 15541 Next scan frequencies: 15349.49 15357.49 15365.49 15373.49 Next BBC frequencies: 749.49 757.49 765.49 773.49 12 31 54 3C286 12 43 30 78.7 114.5 -0.8 -59.0 -4 1 7 15541 12 31 54 12 33 53 --- 12 45 30 79.0 115.6 -0.8 -58.1 116 F 1 16339 Next scan frequencies: 22217.49 22225.49 22233.49 22241.49 Next BBC frequencies: 717.49 725.49 733.49 741.49 12 33 53 3C286 12 45 30 79.0 115.6 -0.8 -58.1 -4 1 7 16339 12 33 53 12 36 53 --- 12 48 30 79.6 117.5 -0.7 -56.6 176 F 1 17536 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: /home/filehost/cwalker/sched/setups/v1cm-128-4-2-L.set Matches group v1cm_b3 in /home/filehost/cwalker/sched/catalogs/freq.dat Setup group: 1 Station: VLBA Total bit rate: 128 Format: VLBA1:4 Bits per sample: 2 Sample rate: 16.000 Number of channels: 4 Passes/head pos: 1 Speedup factor: 2.00 Tape speeds: Low density - 133.330 ips, High density - 80.00 ips Time per pass for 17600 ft, High density tapes is: 00:44:00 1st LO= 21500.00 21500.00 21500.00 21500.00 Net SB= U U U U Pol. = LCP LCP LCP LCP BBC = 1 2 3 4 BBC SB= U U U U IF = D D D D VLBA FE= omit 1cm omit 1cm VLBA Synth= 9.1 15.4 12.4 The following frequency sets based on this setup were used. Frequency Set: 1 Setup file default. Used pcal sets: 1 LO sum= 22217.49 22225.49 22233.49 22241.49 BBC fr= 717.49 725.49 733.49 741.49 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 = 1MHZ PCALXB1= S1 S3 S1 S3 S1 S2 S3 S4 PCALXB2= S2 S4 S2 S4 M1 M2 M3 M4 PCALFR1= 510 510 6510 6510 0 0 0 0 PCALFR2= 510 510 6510 6510 0 0 0 0 Track assignments are: track1= 2, 18, 3, 19 barrel=roll_auto Setup file: /home/filehost/cwalker/sched/setups/v2cm-128-4-2-L.set Matches group v2cm_d3 in /home/filehost/cwalker/sched/catalogs/freq.dat Fourth 2cm filter Setup group: 2 Station: VLBA Total bit rate: 128 Format: VLBA1:4 Bits per sample: 2 Sample rate: 16.000 Number of channels: 4 Passes/head pos: 1 Speedup factor: 2.00 Tape speeds: Low density - 133.330 ips, High density - 80.00 ips Time per pass for 17600 ft, High density tapes is: 00:44:00 1st LO= 14600.00 14600.00 14600.00 14600.00 Net SB= U U U U Pol. = LCP LCP LCP LCP BBC = 1 2 3 4 BBC SB= U U U U IF = D D D D VLBA FE= omit 2cm omit 2cm VLBA Synth= 14.6 10.9 10.9 The following frequency sets based on this setup were used. Frequency Set: 2 Setup file default. Used pcal sets: 1 LO sum= 15349.49 15357.49 15365.49 15373.49 BBC fr= 749.49 757.49 765.49 773.49 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 = 1MHZ PCALXB1= S1 S3 S1 S3 S1 S2 S3 S4 PCALXB2= S2 S4 S2 S4 M1 M2 M3 M4 PCALFR1= 510 510 6510 6510 0 0 0 0 PCALFR2= 510 510 6510 6510 0 0 0 0 Track assignments are: track1= 2, 18, 3, 19 barrel=roll_auto Setup file: /home/filehost/cwalker/sched/setups/v4cm-128-4-2-R.set Matches group v4cm_3 in /home/filehost/cwalker/sched/catalogs/freq.dat Setup group: 3 Station: VLBA Total bit rate: 128 Format: VLBA1:4 Bits per sample: 2 Sample rate: 16.000 Number of channels: 4 Passes/head pos: 1 Speedup factor: 2.00 Tape speeds: Low density - 133.330 ips, High density - 80.00 ips Time per pass for 17600 ft, High density tapes is: 00:44:00 1st LO= 7600.00 7600.00 7600.00 7600.00 Net SB= U U U U Pol. = RCP RCP RCP RCP BBC = 1 2 3 4 BBC SB= U U U U IF = B B B B VLBA FE= omit 4cm omit 4cm VLBA Synth= 7.6 15.4 15.4 The following frequency sets based on this setup were used. Frequency Set: 3 Setup file default. Used pcal sets: 1 LO sum= 8405.49 8413.49 8421.49 8429.49 BBC fr= 805.49 813.49 821.49 829.49 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 = 1MHZ PCALXB1= S1 S3 S1 S3 S1 S2 S3 S4 PCALXB2= S2 S4 S2 S4 M1 M2 M3 M4 PCALFR1= 510 510 6510 6510 0 0 0 0 PCALFR2= 510 510 6510 6510 0 0 0 0 Track assignments are: track1= 2, 18, 3, 19 barrel=roll_auto SOURCE LIST -- BH127A, VLBA, 128 MBPS, 1/2/4 cm, 6 HRS (DYNAMIC), HOUGH 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) (B1950) (J2000) (Date) * 3C207 08 38 01.722175 * 08 40 47.587000 08 41 05.151701 13 23 05.65603 * 13 12 23.54000 13 11 21.60013 From catalog imbedded in main SCHED input file. 2.459 scan hours, 106.374 baseline hours above horizon. * 3C245 10 40 06.012939 * 10 42 44.618000 10 43 01.037473 12 19 14.78270 * 12 03 31.07000 12 01 55.06715 From catalog imbedded in main SCHED input file. 2.427 scan hours, 102.347 baseline hours above horizon. * OJ287 08 51 57.250588 * 08 54 48.874900 08 55 07.058052 20 17 58.41855 * 20 06 30.64200 20 05 22.71888 From catalog imbedded in main SCHED input file. 0.116 scan hours, 5.115 baseline hours above horizon. * 3C286 13 28 49.657908 * 13 31 08.288200 13 31 21.937119 30 45 58.64135 * 30 30 32.96000 30 28 47.06119 From catalog imbedded in main SCHED input file. 0.116 scan hours, 5.125 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) 3C207 159.5 3C245 131.4 OJ287 158.5 3C286 99.4 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