COVER INFORMATION Station: VLBA_HN (Code Hn ) Experiment: bw088 M87 movie. Walker, Ly, Junor, Hardee Exp. Code: bw088t 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 ---------------------------------------------------------------------------------------- --- Sun 30 Dec 2007 Day 364 --- 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 08 08 54 OJ287 09 54 32 64.0 213.2 1.0 25.2 0 1 1 0 08 08 24 08 10 54 --- 09 56 32 63.8 214.1 1.0 25.9 120 F 1 5 08 08 42 08 12 57 3C274 09 58 36 45.1 121.3 -2.5 -39.8 56 1 1 5 08 12 27 08 32 54 --- 10 18 36 48.1 126.9 -2.2 -36.8 1197 F 1 44 08 12 45 08 35 00 OJ287 10 20 41 61.0 224.8 1.4 33.3 54 1 1 44 08 34 30 08 36 59 --- 10 22 41 60.7 225.6 1.5 33.8 120 F 1 49 08 34 48 08 39 05 3C274 10 24 48 49.0 128.7 -2.1 -35.8 55 1 1 49 08 38 35 08 59 02 --- 10 44 48 51.7 135.1 -1.8 -32.0 1197 F 1 89 08 38 53 08 59 46 3C279 10 45 32 32.9 140.1 -2.2 -28.2 0 1 1 89 08 59 16 09 01 45 --- 10 47 32 33.1 140.6 -2.2 -27.8 120 F 1 94 08 59 34 09 02 29 3C274 10 48 16 52.2 136.2 -1.7 -31.2 0 1 1 94 09 01 59 09 22 26 --- 11 08 16 54.5 143.4 -1.4 -26.5 1197 F 1 133 09 02 17 09 24 25 OJ287 11 10 15 53.7 241.7 2.2 43.3 47 1 1 133 09 23 55 09 26 25 --- 11 12 15 53.4 242.3 2.3 43.6 120 F 1 138 09 24 13 09 28 22 3C274 11 14 12 55.2 145.7 -1.3 -25.0 47 1 1 138 09 27 52 09 33 21 --- 11 19 12 55.7 147.6 -1.2 -23.7 299 F 1 149 09 28 10 09 33 21 M84 11 19 12 56.7 149.6 -1.1 -22.3 -8 1 1 149 09 33 21 09 34 01 --- 11 19 52 56.7 149.9 -1.1 -22.1 32 F 1 150 09 33 21 09 34 01 3C274 11 19 52 55.7 147.9 -1.2 -23.5 -8 1 1 150 09 34 01 09 34 31 --- 11 20 22 55.8 148.1 -1.2 -23.3 22 F 1 151 09 34 01 09 34 31 M84 11 20 22 56.8 150.1 -1.1 -22.0 -8 1 1 151 09 34 31 09 35 11 --- 11 21 02 56.8 150.4 -1.1 -21.8 32 F 1 152 09 34 31 09 35 11 3C274 11 21 02 55.8 148.4 -1.2 -23.2 -8 1 1 152 09 35 11 09 35 41 --- 11 21 32 55.9 148.6 -1.2 -23.0 22 F 1 153 09 35 11 09 35 41 M84 11 21 32 56.9 150.6 -1.1 -21.7 -8 1 1 153 09 35 41 09 36 20 --- 11 22 12 56.9 150.8 -1.1 -21.5 32 F 1 154 09 35 41 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 ---------------------------------------------------------------------------------------- --- Sun 30 Dec 2007 Day 364 --- 09 36 20 3C274 11 22 12 56.0 148.8 -1.2 -22.8 -8 1 1 154 09 36 20 09 36 50 --- 11 22 42 56.0 149.0 -1.1 -22.7 22 F 1 155 09 36 20 09 36 50 M84 11 22 42 57.0 151.0 -1.0 -21.3 -8 1 1 155 09 36 50 09 37 30 --- 11 23 22 57.1 151.3 -1.0 -21.1 32 F 1 157 09 36 50 09 37 39 3C274 11 23 31 56.1 149.3 -1.1 -22.5 1 1 1 157 09 37 30 09 42 38 --- 11 28 31 56.5 151.4 -1.0 -21.0 299 F 1 167 09 37 30 09 44 38 3C279 11 30 31 37.5 152.6 -1.4 -19.8 76 1 1 167 09 44 08 09 46 38 --- 11 32 31 37.6 153.2 -1.4 -19.4 120 F 1 171 09 44 26 09 47 22 3C274 11 33 16 56.9 153.4 -1.0 -19.6 0 1 1 171 09 46 52 10 07 19 --- 11 53 16 58.3 162.1 -0.6 -13.3 1197 F 1 211 09 47 10 10 08 52 OJ287 11 54 49 46.1 253.0 3.0 48.2 26 1 1 211 10 08 22 10 10 52 --- 11 56 49 45.8 253.5 3.0 48.4 120 F 1 216 10 08 40 10 12 26 3C274 11 58 24 58.6 164.5 -0.5 -11.6 29 1 1 216 10 11 56 10 32 23 --- 12 18 24 59.3 173.9 -0.2 -4.6 1197 F 1 255 10 12 14 10 33 07 3C279 12 19 08 40.5 167.7 -0.6 -9.0 0 1 1 255 10 32 37 10 35 07 --- 12 21 08 40.6 168.4 -0.6 -8.5 120 F 1 260 10 32 55 10 35 51 3C274 12 21 53 59.3 175.5 -0.2 -3.4 1 1 1 260 10 35 21 10 55 48 --- 12 41 53 59.3 185.1 0.2 3.8 1197 F 1 300 10 35 39 10 57 33 OJ287 12 43 38 37.4 263.0 3.8 50.7 47 1 1 300 10 57 03 10 59 32 --- 12 45 38 37.0 263.4 3.8 50.7 120 F 1 305 10 57 21 11 01 22 3C274 12 47 28 59.2 187.8 0.3 5.8 53 1 1 305 11 00 52 11 21 19 --- 13 07 28 58.4 197.1 0.6 12.7 1197 F 1 344 11 01 10 11 22 03 3C279 13 08 12 41.2 183.8 0.2 2.8 4 1 1 344 11 21 33 11 24 03 --- 13 10 12 41.1 184.5 0.2 3.3 120 F 1 349 11 21 51 11 24 47 3C274 13 10 57 58.2 198.7 0.7 13.9 4 1 1 349 11 24 17 11 29 46 --- 13 15 57 57.9 200.9 0.7 15.5 299 F 1 360 11 24 35 11 29 46 M84 13 15 57 58.0 203.7 0.8 17.6 -8 1 1 360 11 29 46 11 30 26 --- 13 16 37 57.9 204.0 0.9 17.8 32 F 1 361 11 29 46 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 ---------------------------------------------------------------------------------------- --- Sun 30 Dec 2007 Day 364 --- 11 30 26 3C274 13 16 37 57.9 201.2 0.8 15.7 -8 1 1 361 11 30 26 11 30 56 --- 13 17 07 57.8 201.4 0.8 15.9 22 F 1 362 11 30 26 11 30 56 M84 13 17 07 57.9 204.2 0.9 17.9 -8 1 1 362 11 30 56 11 31 36 --- 13 17 47 57.9 204.5 0.9 18.1 32 F 1 363 11 30 56 11 31 36 3C274 13 17 47 57.8 201.7 0.8 16.1 -8 1 1 363 11 31 36 11 32 06 --- 13 18 17 57.8 201.9 0.8 16.2 22 F 1 364 11 31 36 11 32 06 M84 13 18 17 57.8 204.7 0.9 18.3 -8 1 1 364 11 32 06 11 32 46 --- 13 18 57 57.8 205.0 0.9 18.5 32 F 1 365 11 32 06 11 32 46 3C274 13 18 57 57.7 202.2 0.8 16.5 -8 1 1 365 11 32 46 11 33 16 --- 13 19 27 57.7 202.4 0.8 16.6 22 F 1 366 11 32 46 11 33 16 M84 13 19 27 57.7 205.2 0.9 18.7 -8 1 1 366 11 33 16 11 33 56 --- 13 20 07 57.7 205.5 0.9 18.9 32 F 1 368 11 33 16 11 34 04 3C274 13 20 16 57.6 202.8 0.8 16.9 1 1 1 368 11 33 56 11 39 04 --- 13 25 16 57.3 204.9 0.9 18.4 299 F 1 378 11 33 56 11 41 03 BLANKSKY 13 27 16 57.3 205.9 0.9 19.1 113 1 1 378 11 40 33 11 43 03 --- 13 29 16 57.1 206.7 1.0 19.7 120 F 1 382 11 40 51 11 44 54 OJ287 13 31 07 28.7 271.4 4.6 51.2 48 1 1 382 11 44 24 11 46 54 --- 13 33 07 28.4 271.7 4.6 51.2 120 F 1 387 11 44 42 11 48 43 3C274 13 34 57 56.4 209.0 1.1 21.3 47 1 1 387 11 48 13 12 08 40 --- 13 54 57 54.5 216.9 1.4 26.7 1197 F 1 427 11 48 31 12 09 24 3C279 13 55 41 39.4 199.2 1.0 14.0 8 1 1 427 12 08 54 12 11 24 --- 13 57 41 39.3 199.8 1.0 14.4 120 F 1 432 12 09 12 12 12 08 3C274 13 58 26 54.1 218.2 1.5 27.6 9 1 1 432 12 11 38 12 32 05 --- 14 18 26 51.6 225.2 1.8 32.1 1197 F 1 471 12 11 56 12 33 56 OJ287 14 20 17 19.8 279.4 5.4 50.3 42 1 1 471 12 33 26 12 35 56 --- 14 22 17 19.4 279.7 5.4 50.2 120 F 1 476 12 33 44 12 37 46 3C274 14 24 07 50.9 227.1 1.9 33.3 41 1 1 476 12 37 16 12 57 42 --- 14 44 07 48.1 233.2 2.2 36.9 1197 F 1 516 12 37 34 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 ---------------------------------------------------------------------------------------- --- Sun 30 Dec 2007 Day 364 --- 12 58 27 3C279 14 44 52 35.4 213.7 1.8 24.1 13 1 1 516 12 57 57 13 00 26 --- 14 46 52 35.2 214.3 1.8 24.5 120 F 1 520 12 58 15 13 01 11 3C274 14 47 36 47.6 234.2 2.3 37.5 14 1 1 520 13 00 41 13 21 08 --- 15 07 36 44.5 239.7 2.6 40.3 1197 F 1 560 13 00 59 13 23 13 OJ287 15 09 42 11.0 287.3 6.2 48.1 53 1 1 560 13 22 43 13 25 13 --- 15 11 42 10.6 287.6 6.3 48.0 120 F 1 565 13 23 01 13 27 19 3C274 15 13 49 43.5 241.3 2.7 41.1 54 1 1 565 13 26 49 13 32 18 --- 15 18 49 42.7 242.6 2.8 41.7 299 F 1 575 13 27 07 13 32 18 M84 15 18 49 42.1 244.4 2.9 42.6 -7 1 1 575 13 32 18 13 32 58 --- 15 19 29 42.0 244.6 2.9 42.7 33 F 1 577 13 32 18 13 32 58 3C274 15 19 29 42.6 242.7 2.8 41.8 -7 1 1 577 13 32 58 13 33 28 --- 15 19 59 42.5 242.8 2.8 41.8 23 F 1 578 13 32 58 13 33 28 M84 15 19 59 41.9 244.7 2.9 42.8 -7 1 1 578 13 33 28 13 34 08 --- 15 20 39 41.8 244.9 2.9 42.8 33 F 1 579 13 33 28 13 34 08 3C274 15 20 39 42.4 243.0 2.8 41.9 -7 1 1 579 13 34 08 13 34 38 --- 15 21 09 42.3 243.1 2.8 42.0 23 F 1 580 13 34 08 13 34 38 M84 15 21 09 41.7 245.0 2.9 42.9 -7 1 1 580 13 34 38 13 35 18 --- 15 21 49 41.6 245.1 2.9 42.9 33 F 1 581 13 34 38 13 35 18 3C274 15 21 49 42.2 243.3 2.8 42.0 -7 1 1 581 13 35 18 13 35 48 --- 15 22 19 42.1 243.4 2.9 42.1 23 F 1 582 13 35 18 13 35 48 M84 15 22 19 41.5 245.3 2.9 43.0 -7 1 1 582 13 35 48 13 36 28 --- 15 22 59 41.4 245.4 3.0 43.1 33 F 1 584 13 35 48 13 36 37 3C274 15 23 08 42.0 243.6 2.9 42.2 2 1 1 584 13 36 28 13 41 36 --- 15 28 08 41.2 244.8 2.9 42.7 299 F 1 593 13 36 28 13 42 19 3C279 15 28 52 30.3 225.3 2.5 31.5 16 1 1 593 13 41 49 13 44 19 --- 15 30 52 30.0 225.7 2.6 31.8 120 F 1 598 13 42 07 13 45 03 3C274 15 31 35 40.6 245.6 3.0 43.1 16 1 1 598 13 44 33 14 04 59 --- 15 51 35 37.2 250.2 3.3 44.8 1197 F 1 638 13 44 51 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 ---------------------------------------------------------------------------------------- --- Sun 30 Dec 2007 Day 364 --- 14 13 05 3C274 15 59 43 35.8 251.9 3.5 45.4 477 1 1 638 14 12 35 14 33 02 --- 16 19 43 32.3 256.0 3.8 46.6 1197 F 1 677 14 12 53 14 33 43 3C279 16 20 23 22.9 237.0 3.4 38.1 16 1 1 677 14 33 13 14 35 42 --- 16 22 23 22.6 237.4 3.4 38.3 120 F 1 682 14 33 31 14 36 23 3C274 16 23 04 31.7 256.6 3.9 46.8 16 1 1 682 14 35 53 14 56 20 --- 16 43 04 28.1 260.5 4.2 47.7 1197 F 1 722 14 36 11 14 56 59 3C279 16 43 43 19.3 241.8 3.8 40.5 15 1 1 722 14 56 20 14 58 58 --- 16 45 43 18.9 242.2 3.8 40.6 120 F 1 727 14 56 20 14 59 37 3C274 16 46 22 27.5 261.1 4.3 47.8 16 1 1 727 14 58 58 15 19 34 --- 17 06 22 23.9 264.7 4.6 48.3 1197 F 1 767 14 58 58 15 20 14 3C279 17 07 02 15.4 246.4 4.2 42.4 17 1 1 767 15 19 34 15 22 13 --- 17 09 02 15.1 246.8 4.2 42.6 120 F 1 772 15 19 34 15 22 54 BLANKSKY 17 09 43 23.4 265.4 4.6 48.4 18 1 1 772 15 22 24 15 24 54 --- 17 11 43 23.0 265.8 4.7 48.4 120 F 1 777 15 22 42 15 25 00 3C274 17 11 49 22.9 265.7 4.7 48.4 0 1 1 777 15 24 54 15 29 59 --- 17 16 49 22.0 266.6 4.8 48.4 299 F 1 787 15 24 54 15 29 59 M84 17 16 49 21.2 268.0 4.9 48.6 -7 1 1 787 15 29 59 15 30 39 --- 17 17 29 21.1 268.1 4.9 48.6 32 F 1 788 15 29 59 15 30 39 3C274 17 17 29 21.8 266.7 4.8 48.4 -7 1 1 788 15 30 39 15 31 09 --- 17 17 59 21.7 266.8 4.8 48.4 23 F 1 789 15 30 39 15 31 09 M84 17 17 59 21.0 268.2 4.9 48.6 -7 1 1 789 15 31 09 15 31 49 --- 17 18 39 20.9 268.3 4.9 48.6 32 F 1 790 15 31 09 15 31 49 3C274 17 18 39 21.6 266.9 4.8 48.4 -7 1 1 790 15 31 49 15 32 18 --- 17 19 09 21.5 267.0 4.8 48.5 23 F 1 791 15 31 49 15 32 18 M84 17 19 09 20.8 268.4 4.9 48.6 -7 1 1 791 15 32 18 15 32 58 --- 17 19 49 20.7 268.5 4.9 48.6 32 F 1 792 15 32 18 15 32 58 3C274 17 19 49 21.4 267.1 4.8 48.5 -7 1 1 792 15 32 58 15 33 28 --- 17 20 19 21.3 267.2 4.8 48.5 23 F 1 793 15 32 58 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 ---------------------------------------------------------------------------------------- --- Sun 30 Dec 2007 Day 364 --- 15 33 28 M84 17 20 19 20.6 268.6 4.9 48.6 -7 1 1 793 15 33 28 15 34 08 --- 17 20 59 20.5 268.7 4.9 48.7 32 F 1 795 15 33 28 15 34 17 3C274 17 21 08 21.2 267.3 4.8 48.5 1 1 1 795 15 34 08 15 39 16 --- 17 26 08 20.2 268.2 4.9 48.5 299 F 1 805 15 34 08 15 41 16 3C274 17 28 08 19.9 268.5 4.9 48.5 113 1 1 805 15 40 46 16 01 13 --- 17 48 08 16.2 271.9 5.3 48.5 1197 F 1 844 15 41 04 16 04 41 3C274 17 51 37 15.6 272.5 5.3 48.5 201 1 1 844 16 04 11 16 24 38 --- 18 11 37 11.9 275.8 5.7 48.2 1197 F 1 884 16 04 29 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 /home/filehost/cwalker/sched/catalogs/freq.dat Setup group: 2 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: 2 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 14.320221 0.00 12 50 01.74793 * 12 33 28.04383 12 30 39.13105 0.00 From catalog imbedded in main SCHED input file. Blank sky 10 arcmin from M87 0.066 scan hours, 2.992 baseline hours above horizon. J0854+2006 08 51 57.250618 * 08 54 48.874930 08 55 18.196166 0.21 0851+202 20 17 58.41741 * 20 06 30.64086 20 04 37.48546 0.40 J0854+20 /home/filehost/cwalker/sched/catalogs/sources.vlba * OJ287 VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 0.332 scan hours, 13.230 baseline hours above horizon. J1225+1253 12 22 31.582015 * 12 25 03.743331 12 25 28.732567 0.32 * M84 13 09 49.76862 * 12 53 13.13923 12 50 23.79566 0.31 /home/filehost/cwalker/sched/catalogs/sources.vlba VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 0.222 scan hours, 6.951 baseline hours above horizon. J1230+1223 12 28 17.569279 * 12 30 49.423381 12 31 14.323203 0.31 1228+126 12 40 01.74901 * 12 23 28.04383 12 20 39.18941 0.20 * 3C274 /home/filehost/cwalker/sched/catalogs/sources.vlba J1230+12 VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 7.853 scan hours, 300.164 baseline hours above horizon. J1256-0547 12 53 35.831291 * 12 56 11.166559 12 56 36.347775 0.20 1253-055 -05 31 07.99586 *-05 47 21.52472 -05 50 01.23276 0.30 * 3C279 /home/filehost/cwalker/sched/catalogs/sources.vlba J1256-05 VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 0.499 scan hours, 17.186 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 96.1 OJ287 147.7 M84 97.6 3C274 96.1 3C279 83.2 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