COVER INFORMATION Station: VLBA_HN (Code Hn ) Experiment: bw088 M87 movie. Walker, Ly, Junor, Hardee Exp. Code: bw088s Schedule Version: 1.00 Processed by SCHED version: 6.05 June 2006 PI: R.C. Walker Address: NRAO, P.O. Box O Socorro, NM 87801 USA Phone: +1-505-835-7247 (w) / +1-505-835-3972 (h) EMAIL: cwalker@nrao.edu Fax: +1-505-835-7027 Phone during observation: +1-505-835-7247 (w) / +1-505-835-3972 (h) Observing mode: VLBA Notes: COVER LETTER: This 18 session project is designed to provide a movie of jet component motions near the black hole in M87. Here is the key information from the time allocation email: PROPOSAL STATUS ( 01/10/2007 ): Approved for dynamic scheduling, high priority CURRENT TIME ALLOCATION: 18 times 10.0 hrs dynamically scheduled centered at LST 12.5 with 256 Mbits/sec recording Note request for 32 output spectral channels per baseband. ------------------------------------------------------------------------- Schedule for VLBA_HN (Code Hn ) Page 2 bw088 M87 movie. Walker, Ly, Junor, Hardee 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. For disks, the footages are really the GBytes TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. 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) SYNC ---------------------------------------------------------------------------------------- --- Sat 15 Dec 2007 Day 349 --- Next scan frequencies: 43119.49 43119.49 43135.49 43135.49 Next BBC frequencies: 719.49 719.49 735.49 735.49 Next scan bandwidths: 16.00 16.00 16.00 16.00 09 07 53 OJ287 09 54 32 64.0 213.2 1.0 25.3 0 1 1 0 09 07 23 09 09 53 --- 09 56 32 63.8 214.1 1.0 25.9 120 F 1 5 09 07 41 09 11 36 3C274 09 58 15 45.0 121.2 -2.5 -39.9 35 1 1 5 09 11 06 09 31 32 --- 10 18 15 48.1 126.8 -2.2 -36.9 1197 F 1 44 09 11 24 09 33 16 OJ287 10 19 59 61.1 224.5 1.4 33.1 32 1 1 44 09 32 46 09 35 16 --- 10 21 59 60.8 225.3 1.4 33.6 120 F 1 49 09 33 04 09 36 57 3C274 10 23 41 48.8 128.4 -2.1 -36.0 31 1 1 49 09 36 27 09 56 54 --- 10 43 41 51.6 134.7 -1.8 -32.2 1197 F 1 89 09 36 45 09 57 38 3C279 10 44 25 32.8 139.8 -2.2 -28.3 0 1 1 89 09 57 08 09 59 37 --- 10 46 25 33.0 140.3 -2.2 -28.0 120 F 1 94 09 57 26 10 00 21 3C274 10 47 09 52.0 135.8 -1.7 -31.5 0 1 1 94 09 59 51 10 20 18 --- 11 07 09 54.4 143.0 -1.4 -26.8 1197 F 1 133 10 00 09 10 21 55 OJ287 11 08 46 53.9 241.3 2.2 43.1 26 1 1 133 10 21 25 10 23 55 --- 11 10 46 53.6 241.9 2.3 43.4 120 F 1 138 10 21 43 10 25 30 3C274 11 12 22 55.0 145.0 -1.3 -25.5 25 1 1 138 10 25 00 10 30 29 --- 11 17 22 55.5 146.9 -1.2 -24.2 299 F 1 149 10 25 18 10 30 29 M84 11 17 22 56.5 148.8 -1.1 -22.9 -8 1 1 149 10 30 29 10 31 09 --- 11 18 02 56.6 149.1 -1.1 -22.7 32 F 1 150 10 30 29 10 31 09 3C274 11 18 02 55.6 147.2 -1.2 -24.0 -8 1 1 150 10 31 09 10 31 39 --- 11 18 32 55.6 147.4 -1.2 -23.8 22 F 1 151 10 31 09 10 31 39 M84 11 18 32 56.6 149.3 -1.1 -22.5 -8 1 1 151 10 31 39 10 32 19 --- 11 19 12 56.7 149.6 -1.1 -22.3 32 F 1 152 10 31 39 10 32 19 3C274 11 19 12 55.7 147.6 -1.2 -23.7 -8 1 1 152 10 32 19 10 32 49 --- 11 19 42 55.7 147.8 -1.2 -23.5 22 F 1 153 10 32 19 10 32 49 M84 11 19 42 56.7 149.8 -1.1 -22.2 -8 1 1 153 10 32 49 10 33 29 --- 11 20 22 56.8 150.1 -1.1 -22.0 32 F 1 154 10 32 49 Schedule for VLBA_HN (Code Hn ) Page 3 bw088 M87 movie. Walker, Ly, Junor, Hardee 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. For disks, the footages are really the GBytes TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. 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) SYNC ---------------------------------------------------------------------------------------- --- Sat 15 Dec 2007 Day 349 --- 10 33 29 3C274 11 20 22 55.8 148.1 -1.2 -23.3 -8 1 1 154 10 33 29 10 33 59 --- 11 20 52 55.8 148.3 -1.2 -23.2 22 F 1 155 10 33 29 10 33 59 M84 11 20 52 56.8 150.3 -1.1 -21.9 -8 1 1 155 10 33 59 10 34 39 --- 11 21 32 56.9 150.6 -1.1 -21.7 32 F 1 157 10 33 59 10 34 48 3C274 11 21 41 55.9 148.6 -1.2 -23.0 1 1 1 157 10 34 39 10 39 47 --- 11 26 41 56.4 150.6 -1.1 -21.6 299 F 1 167 10 34 39 10 41 46 3C279 11 28 41 37.3 152.1 -1.5 -20.2 76 1 1 167 10 41 16 10 43 46 --- 11 30 41 37.5 152.7 -1.4 -19.7 120 F 1 171 10 41 34 10 44 31 3C274 11 31 25 56.8 152.6 -1.0 -20.2 0 1 1 171 10 44 01 11 04 27 --- 11 51 25 58.2 161.3 -0.7 -13.9 1197 F 1 211 10 44 19 11 05 56 OJ287 11 52 54 46.5 252.6 3.0 48.1 22 1 1 211 11 05 26 11 07 56 --- 11 54 54 46.1 253.1 3.0 48.2 120 F 1 216 11 05 44 11 09 24 3C274 11 56 23 58.5 163.6 -0.6 -12.3 23 1 1 216 11 08 54 11 29 21 --- 12 16 23 59.2 172.9 -0.2 -5.3 1197 F 1 255 11 09 12 11 30 05 3C279 12 17 07 40.4 167.1 -0.7 -9.5 0 1 1 255 11 29 35 11 32 04 --- 12 19 07 40.5 167.7 -0.6 -9.0 120 F 1 260 11 29 53 11 32 49 3C274 12 19 51 59.3 174.6 -0.2 -4.1 1 1 1 260 11 32 19 11 52 45 --- 12 39 51 59.4 184.1 0.1 3.1 1197 F 1 300 11 32 37 11 54 20 OJ287 12 41 26 37.8 262.6 3.8 50.6 37 1 1 300 11 53 50 11 56 20 --- 12 43 26 37.4 263.0 3.8 50.7 120 F 1 305 11 54 08 11 58 09 3C274 12 45 16 59.3 186.7 0.2 5.0 53 1 1 305 11 57 39 12 18 06 --- 13 05 16 58.5 196.1 0.6 12.0 1197 F 1 344 11 57 57 12 18 50 3C279 13 06 01 41.2 183.1 0.2 2.3 4 1 1 344 12 18 20 12 20 50 --- 13 08 01 41.2 183.8 0.2 2.8 120 F 1 349 12 18 38 12 21 35 3C274 13 08 45 58.4 197.7 0.6 13.1 4 1 1 349 12 21 05 12 26 34 --- 13 13 45 58.1 199.9 0.7 14.8 299 F 1 360 12 21 23 12 26 34 M84 13 13 45 58.1 202.7 0.8 16.9 -8 1 1 360 12 26 34 12 27 14 --- 13 14 25 58.1 203.0 0.8 17.1 32 F 1 361 12 26 34 Schedule for VLBA_HN (Code Hn ) Page 4 bw088 M87 movie. Walker, Ly, Junor, Hardee 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. For disks, the footages are really the GBytes TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. 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) SYNC ---------------------------------------------------------------------------------------- --- Sat 15 Dec 2007 Day 349 --- 12 27 14 3C274 13 14 25 58.0 200.2 0.7 15.0 -8 1 1 361 12 27 14 12 27 44 --- 13 14 55 58.0 200.4 0.7 15.2 22 F 1 362 12 27 14 12 27 44 M84 13 14 55 58.1 203.2 0.8 17.2 -8 1 1 362 12 27 44 12 28 24 --- 13 15 35 58.0 203.5 0.8 17.5 32 F 1 363 12 27 44 12 28 24 3C274 13 15 35 57.9 200.7 0.7 15.4 -8 1 1 363 12 28 24 12 28 53 --- 13 16 05 57.9 201.0 0.7 15.5 22 F 1 364 12 28 24 12 28 53 M84 13 16 05 58.0 203.8 0.8 17.6 -8 1 1 364 12 28 53 12 29 33 --- 13 16 45 57.9 204.0 0.9 17.8 32 F 1 365 12 28 53 12 29 33 3C274 13 16 45 57.9 201.2 0.8 15.8 -8 1 1 365 12 29 33 12 30 03 --- 13 17 15 57.8 201.5 0.8 15.9 22 F 1 366 12 29 33 12 30 03 M84 13 17 15 57.9 204.3 0.9 18.0 -8 1 1 366 12 30 03 12 30 43 --- 13 17 55 57.8 204.6 0.9 18.2 32 F 1 368 12 30 03 12 30 52 3C274 13 18 04 57.8 201.8 0.8 16.2 1 1 1 368 12 30 43 12 35 51 --- 13 23 04 57.4 204.0 0.9 17.8 299 F 1 378 12 30 43 12 37 51 BLANKSKY 13 25 04 57.4 205.0 0.9 18.5 113 1 1 378 12 37 21 12 39 51 --- 13 27 04 57.3 205.8 0.9 19.1 120 F 1 382 12 37 39 12 41 42 OJ287 13 28 56 29.1 271.0 4.6 51.2 49 1 1 382 12 41 12 12 43 41 --- 13 30 56 28.8 271.4 4.6 51.2 120 F 1 387 12 41 30 12 45 31 3C274 13 32 46 56.6 208.1 1.0 20.7 48 1 1 387 12 45 01 13 05 28 --- 13 52 46 54.7 216.1 1.4 26.2 1197 F 1 427 12 45 19 13 06 12 3C279 13 53 30 39.6 198.5 0.9 13.5 8 1 1 427 13 05 42 13 08 12 --- 13 55 30 39.4 199.1 1.0 13.9 120 F 1 432 13 06 00 13 08 56 3C274 13 56 14 54.3 217.4 1.4 27.1 9 1 1 432 13 08 26 13 28 53 --- 14 16 14 51.9 224.5 1.8 31.7 1197 F 1 471 13 08 44 13 30 44 OJ287 14 18 06 20.2 279.1 5.4 50.3 42 1 1 471 13 30 14 13 32 44 --- 14 20 06 19.8 279.4 5.4 50.3 120 F 1 476 13 30 32 13 34 33 3C274 14 21 56 51.2 226.4 1.8 32.8 41 1 1 476 13 34 03 13 54 30 --- 14 41 56 48.4 232.6 2.2 36.5 1197 F 1 516 13 34 21 Schedule for VLBA_HN (Code Hn ) Page 5 bw088 M87 movie. Walker, Ly, Junor, Hardee 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. For disks, the footages are really the GBytes TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. 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) SYNC ---------------------------------------------------------------------------------------- --- Sat 15 Dec 2007 Day 349 --- 13 55 14 3C279 14 42 40 35.6 213.1 1.8 23.7 13 1 1 516 13 54 44 13 57 14 --- 14 44 40 35.4 213.7 1.8 24.1 120 F 1 520 13 55 02 13 57 59 3C274 14 45 25 47.9 233.6 2.2 37.1 14 1 1 520 13 57 29 14 17 55 --- 15 05 25 44.8 239.1 2.6 40.0 1197 F 1 560 13 57 47 14 20 01 OJ287 15 07 31 11.4 286.9 6.2 48.2 53 1 1 560 14 19 31 14 22 00 --- 15 09 31 11.0 287.2 6.2 48.1 120 F 1 565 14 19 49 14 24 06 3C274 15 11 37 43.8 240.7 2.7 40.8 54 1 1 565 14 23 36 14 29 06 --- 15 16 37 43.0 242.0 2.8 41.4 299 F 1 575 14 23 54 14 29 06 M84 15 16 37 42.5 243.9 2.9 42.4 -7 1 1 575 14 29 06 14 29 46 --- 15 17 17 42.4 244.0 2.9 42.5 33 F 1 577 14 29 06 14 29 46 3C274 15 17 17 42.9 242.2 2.8 41.5 -7 1 1 577 14 29 46 14 30 15 --- 15 17 47 42.9 242.3 2.8 41.6 23 F 1 578 14 29 46 14 30 15 M84 15 17 47 42.3 244.2 2.9 42.5 -7 1 1 578 14 30 15 14 30 55 --- 15 18 27 42.2 244.3 2.9 42.6 33 F 1 579 14 30 15 14 30 55 3C274 15 18 27 42.7 242.5 2.8 41.7 -7 1 1 579 14 30 55 14 31 25 --- 15 18 57 42.7 242.6 2.8 41.7 23 F 1 580 14 30 55 14 31 25 M84 15 18 57 42.1 244.5 2.9 42.6 -7 1 1 580 14 31 25 14 32 05 --- 15 19 37 42.0 244.6 2.9 42.7 33 F 1 581 14 31 25 14 32 05 3C274 15 19 37 42.6 242.8 2.8 41.8 -7 1 1 581 14 32 05 14 32 35 --- 15 20 07 42.5 242.9 2.8 41.8 23 F 1 582 14 32 05 14 32 35 M84 15 20 07 41.9 244.7 2.9 42.8 -7 1 1 582 14 32 35 14 33 15 --- 15 20 47 41.8 244.9 2.9 42.8 33 F 1 584 14 32 35 14 33 24 3C274 15 20 56 42.3 243.1 2.8 41.9 2 1 1 584 14 33 15 14 38 23 --- 15 25 56 41.5 244.3 2.9 42.5 299 F 1 593 14 33 15 14 39 07 3C279 15 26 40 30.6 224.7 2.5 31.2 16 1 1 593 14 38 37 14 41 06 --- 15 28 40 30.3 225.2 2.5 31.5 120 F 1 598 14 38 55 14 41 50 3C274 15 29 24 40.9 245.1 3.0 42.8 16 1 1 598 14 41 20 15 01 47 --- 15 49 24 37.6 249.7 3.3 44.7 1197 F 1 638 14 41 38 Schedule for VLBA_HN (Code Hn ) Page 6 bw088 M87 movie. Walker, Ly, Junor, Hardee 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. For disks, the footages are really the GBytes TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. 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) SYNC ---------------------------------------------------------------------------------------- --- Sat 15 Dec 2007 Day 349 --- 15 09 53 3C274 15 57 31 36.2 251.4 3.4 45.3 477 1 1 638 15 09 23 15 29 50 --- 16 17 31 32.7 255.6 3.8 46.5 1197 F 1 677 15 09 41 15 30 31 3C279 16 18 12 23.3 236.6 3.4 37.9 16 1 1 677 15 30 01 15 32 30 --- 16 20 12 23.0 237.0 3.4 38.1 120 F 1 682 15 30 19 15 33 11 3C274 16 20 53 32.1 256.2 3.8 46.7 16 1 1 682 15 32 41 15 53 08 --- 16 40 53 28.5 260.1 4.2 47.6 1197 F 1 722 15 32 59 15 53 47 3C279 16 41 33 19.6 241.4 3.7 40.3 16 1 1 722 15 53 08 15 55 47 --- 16 43 33 19.3 241.8 3.8 40.4 120 F 1 727 15 53 08 15 56 26 3C274 16 44 12 27.9 260.7 4.2 47.7 16 1 1 727 15 55 47 16 16 22 --- 17 04 12 24.3 264.3 4.5 48.2 1197 F 1 767 15 55 47 16 17 02 3C279 17 04 51 15.8 246.0 4.1 42.2 17 1 1 767 16 16 22 16 19 02 --- 17 06 51 15.4 246.4 4.2 42.4 120 F 1 772 16 16 22 16 19 42 BLANKSKY 17 07 32 23.8 265.1 4.6 48.3 18 1 1 772 16 19 12 16 21 42 --- 17 09 32 23.4 265.4 4.6 48.4 120 F 1 777 16 19 30 16 21 48 3C274 17 09 38 23.3 265.3 4.6 48.3 0 1 1 777 16 21 42 16 26 47 --- 17 14 38 22.3 266.2 4.7 48.4 299 F 1 787 16 21 42 16 26 47 M84 17 14 38 21.6 267.6 4.8 48.6 -7 1 1 787 16 26 47 16 27 27 --- 17 15 18 21.5 267.7 4.8 48.6 32 F 1 788 16 26 47 16 27 27 3C274 17 15 18 22.2 266.3 4.7 48.4 -7 1 1 788 16 27 27 16 27 57 --- 17 15 48 22.1 266.4 4.7 48.4 23 F 1 789 16 27 27 16 27 57 M84 17 15 48 21.4 267.8 4.8 48.6 -7 1 1 789 16 27 57 16 28 36 --- 17 16 28 21.3 267.9 4.8 48.6 32 F 1 790 16 27 57 16 28 36 3C274 17 16 28 22.0 266.5 4.8 48.4 -7 1 1 790 16 28 36 16 29 06 --- 17 16 58 21.9 266.6 4.8 48.4 23 F 1 791 16 28 36 16 29 06 M84 17 16 58 21.2 268.0 4.9 48.6 -7 1 1 791 16 29 06 16 29 46 --- 17 17 38 21.1 268.1 4.9 48.6 32 F 1 792 16 29 06 16 29 46 3C274 17 17 38 21.8 266.7 4.8 48.4 -7 1 1 792 16 29 46 16 30 16 --- 17 18 08 21.7 266.8 4.8 48.4 23 F 1 793 16 29 46 Schedule for VLBA_HN (Code Hn ) Page 7 bw088 M87 movie. Walker, Ly, Junor, Hardee 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. For disks, the footages are really the GBytes TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. 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) SYNC ---------------------------------------------------------------------------------------- --- Sat 15 Dec 2007 Day 349 --- 16 30 16 M84 17 18 08 21.0 268.2 4.9 48.6 -7 1 1 793 16 30 16 16 30 56 --- 17 18 48 20.9 268.3 4.9 48.6 32 F 1 795 16 30 16 16 31 05 3C274 17 18 57 21.6 266.9 4.8 48.5 1 1 1 795 16 30 56 16 36 04 --- 17 23 57 20.6 267.8 4.9 48.5 299 F 1 805 16 30 56 16 38 04 3C274 17 25 57 20.3 268.1 4.9 48.5 113 1 1 805 16 37 34 16 58 00 --- 17 45 57 16.6 271.5 5.2 48.5 1197 F 1 844 16 37 52 17 01 29 3C274 17 49 25 16.0 272.1 5.3 48.5 201 1 1 844 17 00 59 17 21 25 --- 18 09 25 12.3 275.5 5.6 48.2 1197 F 1 884 17 01 17 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: bw088.set Matches group v7mm_c8 in /users/cwalker/sched/catalogs/freq.dat Setup group: 1 Station: VLBA_HN Total bit rate: 256 Format: VLBA1:4 Bits per sample: 2 Sample rate: 32.000 Number of channels: 4 Speedup factor: 1.00 Disk used to record data. 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: 1 Setup file default. Used pcal sets: 1 LO sum= 43119.49 43119.49 43135.49 43135.49 BBC fr= 719.49 719.49 735.49 735.49 Bandwd= 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 S1 S3 S1 S2 S3 S4 PCALXB2= S2 S4 S2 S4 M1 M2 M3 M4 PCALFR1= 510 510 13510 13510 0 0 0 0 PCALFR2= 510 510 13510 13510 0 0 0 0 Track assignments are: track1= 2, 18, 3, 19 barrel=roll_off SOURCE LIST -- bw088 M87 movie. Walker, Ly, Junor, Hardee 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) * BLANKSKY 12 28 17.595540 * 12 30 49.423381 12 31 13.805040 0.00 12 50 01.74793 * 12 33 28.04383 12 30 42.53168 0.00 From catalog imbedded in main SCHED input file. Blank sky 10 arcmin from M87 0.066 scan hours, 2.393 baseline hours above horizon. J0854+2006 08 51 57.250618 * 08 54 48.874930 08 55 17.753848 0.21 0851+202 20 17 58.41741 * 20 06 30.64086 20 04 39.08484 0.40 J0854+20 /users/cwalker/sched/catalogs/sources.vlba * OJ287 VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 0.332 scan hours, 11.435 baseline hours above horizon. J1225+1253 12 22 31.582015 * 12 25 03.743331 12 25 28.215629 0.32 * M84 13 09 49.76862 * 12 53 13.13923 12 50 27.17329 0.31 /users/cwalker/sched/catalogs/sources.vlba VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 0.222 scan hours, 5.735 baseline hours above horizon. J1230+1223 12 28 17.569279 * 12 30 49.423381 12 31 13.808203 0.31 1228+126 12 40 01.74901 * 12 23 28.04383 12 20 42.58965 0.20 * 3C274 /users/cwalker/sched/catalogs/sources.vlba J1230+12 VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 7.853 scan hours, 250.842 baseline hours above horizon. J1256-0547 12 53 35.831291 * 12 56 11.166559 12 56 35.840849 0.20 1253-055 -05 31 07.99586 *-05 47 21.52472 -05 49 58.06792 0.30 * 3C279 /users/cwalker/sched/catalogs/sources.vlba J1256-05 VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 0.499 scan hours, 14.660 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) BLANKSKY 81.4 OJ287 132.5 M84 82.8 3C274 81.3 3C279 67.9 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