COVER INFORMATION Station: VLBA_HN (Code Hn ) Experiment: bw090 M87 fast movie. Walker, Ly, Junor, Hardee Exp. Code: bw090d 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 10 session project is designed to provide a fast movie of jet component motions near the black hole in M87. It was proposed after the every-three-week movie made with BW088 was determined to be undersampled. Here is the key information from the time allocation email: PROPOSAL STATUS ( 12/31/2007 ): Approved for dynamic scheduling, high priority CURRENT TIME ALLOCATION: 10 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 bw090 M87 fast 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 10 Feb 2008 Day 41 --- 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 05 23 46 OJ287 09 54 32 64.0 213.2 1.0 25.2 0 1 1 0 05 23 16 05 25 46 --- 09 56 32 63.8 214.1 1.0 25.9 120 F 1 5 05 23 34 05 27 49 3C274 09 58 36 45.1 121.3 -2.5 -39.8 56 1 1 5 05 27 19 05 47 46 --- 10 18 36 48.1 126.8 -2.2 -36.9 1197 F 1 44 05 27 37 05 49 51 OJ287 10 20 41 61.0 224.8 1.4 33.3 54 1 1 44 05 49 21 05 51 51 --- 10 22 41 60.7 225.6 1.5 33.8 120 F 1 49 05 49 39 05 53 57 3C274 10 24 48 49.0 128.7 -2.1 -35.8 55 1 1 49 05 53 27 06 13 54 --- 10 44 48 51.7 135.0 -1.8 -32.0 1197 F 1 89 05 53 45 06 14 38 3C279 10 45 32 32.9 140.1 -2.2 -28.2 0 1 1 89 06 14 08 06 16 37 --- 10 47 32 33.1 140.6 -2.2 -27.8 120 F 1 94 06 14 26 06 17 21 3C274 10 48 16 52.2 136.2 -1.7 -31.2 0 1 1 94 06 16 51 06 37 18 --- 11 08 16 54.5 143.4 -1.4 -26.6 1197 F 1 133 06 17 09 06 39 17 OJ287 11 10 15 53.7 241.7 2.2 43.3 47 1 1 133 06 38 47 06 41 17 --- 11 12 15 53.4 242.3 2.3 43.6 120 F 1 138 06 39 05 06 43 14 3C274 11 14 12 55.2 145.7 -1.3 -25.0 47 1 1 138 06 42 44 06 48 13 --- 11 19 12 55.7 147.6 -1.2 -23.7 299 F 1 149 06 43 02 06 48 13 M84 11 19 12 56.7 149.6 -1.1 -22.3 -8 1 1 149 06 48 13 06 48 53 --- 11 19 52 56.7 149.9 -1.1 -22.1 32 F 1 150 06 48 13 06 48 53 3C274 11 19 52 55.7 147.9 -1.2 -23.5 -8 1 1 150 06 48 53 06 49 23 --- 11 20 22 55.8 148.1 -1.2 -23.3 22 F 1 151 06 48 53 06 49 23 M84 11 20 22 56.8 150.1 -1.1 -22.0 -8 1 1 151 06 49 23 06 50 02 --- 11 21 02 56.8 150.3 -1.1 -21.8 32 F 1 152 06 49 23 06 50 02 3C274 11 21 02 55.8 148.3 -1.2 -23.2 -8 1 1 152 06 50 02 06 50 32 --- 11 21 32 55.9 148.5 -1.2 -23.0 22 F 1 153 06 50 02 06 50 32 M84 11 21 32 56.9 150.6 -1.1 -21.7 -8 1 1 153 06 50 32 06 51 12 --- 11 22 12 56.9 150.8 -1.1 -21.5 32 F 1 154 06 50 32 Schedule for VLBA_HN (Code Hn ) Page 3 bw090 M87 fast 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 10 Feb 2008 Day 41 --- 06 51 12 3C274 11 22 12 56.0 148.8 -1.2 -22.8 -8 1 1 154 06 51 12 06 51 42 --- 11 22 42 56.0 149.0 -1.1 -22.7 22 F 1 155 06 51 12 06 51 42 M84 11 22 42 57.0 151.0 -1.0 -21.3 -8 1 1 155 06 51 42 06 52 22 --- 11 23 22 57.0 151.3 -1.0 -21.1 32 F 1 157 06 51 42 06 52 31 3C274 11 23 31 56.1 149.3 -1.1 -22.5 1 1 1 157 06 52 22 06 57 30 --- 11 28 31 56.5 151.4 -1.0 -21.0 299 F 1 167 06 52 22 06 59 30 3C279 11 30 31 37.5 152.6 -1.4 -19.8 76 1 1 167 06 59 00 07 01 29 --- 11 32 31 37.6 153.2 -1.4 -19.4 120 F 1 171 06 59 18 07 02 14 3C274 11 33 16 56.9 153.4 -1.0 -19.6 0 1 1 171 07 01 44 07 22 11 --- 11 53 16 58.3 162.1 -0.6 -13.3 1197 F 1 211 07 02 02 07 23 44 OJ287 11 54 49 46.1 253.0 3.0 48.2 26 1 1 211 07 23 14 07 25 44 --- 11 56 49 45.8 253.5 3.0 48.4 120 F 1 216 07 23 32 07 27 18 3C274 11 58 24 58.6 164.5 -0.5 -11.6 29 1 1 216 07 26 48 07 47 15 --- 12 18 24 59.3 173.8 -0.2 -4.6 1197 F 1 255 07 27 06 07 47 59 3C279 12 19 08 40.5 167.7 -0.6 -9.0 0 1 1 255 07 47 29 07 49 58 --- 12 21 08 40.6 168.3 -0.6 -8.5 120 F 1 260 07 47 47 07 50 43 3C274 12 21 53 59.3 175.5 -0.2 -3.4 1 1 1 260 07 50 13 08 10 39 --- 12 41 53 59.3 185.1 0.2 3.8 1197 F 1 300 07 50 31 08 12 25 OJ287 12 43 38 37.4 263.0 3.8 50.7 47 1 1 300 08 11 55 08 14 24 --- 12 45 38 37.0 263.4 3.8 50.7 120 F 1 305 08 12 13 08 16 14 3C274 12 47 28 59.2 187.7 0.3 5.8 53 1 1 305 08 15 44 08 36 10 --- 13 07 28 58.4 197.1 0.6 12.7 1197 F 1 344 08 16 02 08 36 55 3C279 13 08 12 41.2 183.8 0.2 2.8 4 1 1 344 08 36 25 08 38 54 --- 13 10 12 41.1 184.5 0.2 3.3 120 F 1 349 08 36 43 08 39 39 3C274 13 10 57 58.2 198.6 0.7 13.9 4 1 1 349 08 39 09 08 44 38 --- 13 15 57 57.9 200.9 0.7 15.5 299 F 1 360 08 39 27 08 44 38 M84 13 15 57 58.0 203.7 0.8 17.6 -8 1 1 360 08 44 38 08 45 18 --- 13 16 37 57.9 204.0 0.9 17.8 32 F 1 361 08 44 38 Schedule for VLBA_HN (Code Hn ) Page 4 bw090 M87 fast 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 10 Feb 2008 Day 41 --- 08 45 18 3C274 13 16 37 57.9 201.2 0.8 15.7 -8 1 1 361 08 45 18 08 45 48 --- 13 17 07 57.8 201.4 0.8 15.9 22 F 1 362 08 45 18 08 45 48 M84 13 17 07 57.9 204.2 0.9 17.9 -8 1 1 362 08 45 48 08 46 28 --- 13 17 47 57.9 204.5 0.9 18.1 32 F 1 363 08 45 48 08 46 28 3C274 13 17 47 57.8 201.7 0.8 16.1 -8 1 1 363 08 46 28 08 46 58 --- 13 18 17 57.8 201.9 0.8 16.2 22 F 1 364 08 46 28 08 46 58 M84 13 18 17 57.8 204.7 0.9 18.3 -8 1 1 364 08 46 58 08 47 38 --- 13 18 57 57.8 205.0 0.9 18.5 32 F 1 365 08 46 58 08 47 38 3C274 13 18 57 57.7 202.2 0.8 16.4 -8 1 1 365 08 47 38 08 48 07 --- 13 19 27 57.7 202.4 0.8 16.6 22 F 1 366 08 47 38 08 48 07 M84 13 19 27 57.7 205.2 0.9 18.6 -8 1 1 366 08 48 07 08 48 47 --- 13 20 07 57.7 205.5 0.9 18.9 32 F 1 368 08 48 07 08 48 56 3C274 13 20 16 57.6 202.8 0.8 16.9 1 1 1 368 08 48 47 08 53 55 --- 13 25 16 57.3 204.9 0.9 18.4 299 F 1 378 08 48 47 08 55 55 BLANKSKY 13 27 16 57.3 205.9 0.9 19.1 113 1 1 378 08 55 25 08 57 55 --- 13 29 16 57.1 206.7 1.0 19.7 120 F 1 382 08 55 43 08 59 46 OJ287 13 31 07 28.7 271.4 4.6 51.2 48 1 1 382 08 59 16 09 01 46 --- 13 33 07 28.4 271.7 4.6 51.2 120 F 1 387 08 59 34 09 03 35 3C274 13 34 57 56.4 209.0 1.1 21.3 47 1 1 387 09 03 05 09 23 32 --- 13 54 57 54.5 216.9 1.4 26.7 1197 F 1 427 09 03 23 09 24 16 3C279 13 55 41 39.4 199.2 1.0 14.0 8 1 1 427 09 23 46 09 26 16 --- 13 57 41 39.3 199.8 1.0 14.4 120 F 1 432 09 24 04 09 27 00 3C274 13 58 26 54.1 218.2 1.5 27.6 9 1 1 432 09 26 30 09 46 57 --- 14 18 26 51.6 225.2 1.8 32.1 1197 F 1 471 09 26 48 09 48 48 OJ287 14 20 17 19.8 279.4 5.4 50.3 42 1 1 471 09 48 18 09 50 48 --- 14 22 17 19.4 279.7 5.4 50.2 120 F 1 476 09 48 36 09 52 37 3C274 14 24 07 50.9 227.1 1.9 33.3 41 1 1 476 09 52 07 10 12 34 --- 14 44 07 48.1 233.2 2.2 36.9 1197 F 1 516 09 52 25 Schedule for VLBA_HN (Code Hn ) Page 5 bw090 M87 fast 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 10 Feb 2008 Day 41 --- 10 13 18 3C279 14 44 52 35.4 213.7 1.8 24.1 13 1 1 516 10 12 48 10 15 18 --- 14 46 52 35.2 214.3 1.8 24.5 120 F 1 520 10 13 06 10 16 03 3C274 14 47 36 47.6 234.2 2.3 37.4 14 1 1 520 10 15 33 10 35 59 --- 15 07 36 44.5 239.7 2.6 40.3 1197 F 1 560 10 15 51 10 38 05 OJ287 15 09 43 11.0 287.3 6.2 48.1 53 1 1 560 10 37 35 10 40 05 --- 15 11 43 10.6 287.6 6.3 48.0 120 F 1 565 10 37 53 10 42 11 3C274 15 13 49 43.5 241.3 2.7 41.1 54 1 1 565 10 41 41 10 47 10 --- 15 18 49 42.7 242.5 2.8 41.7 299 F 1 575 10 41 59 10 47 10 M84 15 18 49 42.1 244.4 2.9 42.6 -7 1 1 575 10 47 10 10 47 50 --- 15 19 29 42.0 244.6 2.9 42.7 33 F 1 577 10 47 10 10 47 50 3C274 15 19 29 42.6 242.7 2.8 41.8 -7 1 1 577 10 47 50 10 48 20 --- 15 19 59 42.5 242.8 2.8 41.8 23 F 1 578 10 47 50 10 48 20 M84 15 19 59 41.9 244.7 2.9 42.8 -7 1 1 578 10 48 20 10 49 00 --- 15 20 39 41.8 244.9 2.9 42.8 33 F 1 579 10 48 20 10 49 00 3C274 15 20 39 42.4 243.0 2.8 41.9 -7 1 1 579 10 49 00 10 49 30 --- 15 21 09 42.3 243.1 2.8 42.0 23 F 1 580 10 49 00 10 49 30 M84 15 21 09 41.7 245.0 2.9 42.9 -7 1 1 580 10 49 30 10 50 10 --- 15 21 49 41.6 245.1 2.9 42.9 33 F 1 581 10 49 30 10 50 10 3C274 15 21 49 42.2 243.3 2.8 42.0 -7 1 1 581 10 50 10 10 50 40 --- 15 22 19 42.1 243.4 2.9 42.1 23 F 1 582 10 50 10 10 50 40 M84 15 22 19 41.5 245.2 2.9 43.0 -7 1 1 582 10 50 40 10 51 20 --- 15 22 59 41.4 245.4 3.0 43.1 33 F 1 584 10 50 40 10 51 28 3C274 15 23 08 42.0 243.6 2.9 42.2 2 1 1 584 10 51 20 10 56 28 --- 15 28 08 41.2 244.8 2.9 42.7 299 F 1 593 10 51 20 10 57 11 3C279 15 28 52 30.3 225.2 2.5 31.5 16 1 1 593 10 56 41 10 59 11 --- 15 30 52 30.0 225.7 2.6 31.8 120 F 1 598 10 56 59 10 59 54 3C274 15 31 35 40.6 245.6 3.0 43.1 16 1 1 598 10 59 24 11 19 51 --- 15 51 35 37.2 250.1 3.3 44.8 1197 F 1 638 10 59 42 Schedule for VLBA_HN (Code Hn ) Page 6 bw090 M87 fast 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 10 Feb 2008 Day 41 --- 11 27 57 3C274 15 59 43 35.8 251.9 3.5 45.4 477 1 1 638 11 27 27 11 47 54 --- 16 19 43 32.3 256.0 3.8 46.6 1197 F 1 677 11 27 45 11 48 35 3C279 16 20 23 22.9 237.0 3.4 38.1 16 1 1 677 11 48 05 11 50 34 --- 16 22 23 22.6 237.4 3.4 38.3 120 F 1 682 11 48 23 11 51 15 3C274 16 23 04 31.7 256.6 3.9 46.8 16 1 1 682 11 50 45 12 11 11 --- 16 43 04 28.1 260.5 4.2 47.7 1197 F 1 722 11 51 03 12 11 51 3C279 16 43 43 19.3 241.8 3.8 40.4 15 1 1 722 12 11 11 12 13 50 --- 16 45 43 18.9 242.2 3.8 40.6 120 F 1 727 12 11 11 12 14 29 3C274 16 46 22 27.5 261.1 4.3 47.8 16 1 1 727 12 13 50 12 34 26 --- 17 06 22 23.9 264.7 4.6 48.3 1197 F 1 767 12 13 50 12 35 06 3C279 17 07 02 15.4 246.4 4.2 42.4 17 1 1 767 12 34 26 12 37 05 --- 17 09 02 15.1 246.8 4.2 42.6 120 F 1 772 12 34 26 12 37 46 BLANKSKY 17 09 43 23.4 265.4 4.6 48.4 18 1 1 772 12 37 16 12 39 46 --- 17 11 43 23.0 265.8 4.7 48.4 120 F 1 777 12 37 34 12 39 52 3C274 17 11 49 22.9 265.7 4.7 48.4 0 1 1 777 12 39 46 12 44 51 --- 17 16 49 22.0 266.5 4.8 48.4 299 F 1 787 12 39 46 12 44 51 M84 17 16 49 21.2 267.9 4.9 48.6 -7 1 1 787 12 44 51 12 45 31 --- 17 17 29 21.1 268.1 4.9 48.6 32 F 1 788 12 44 51 12 45 31 3C274 17 17 29 21.8 266.7 4.8 48.4 -7 1 1 788 12 45 31 12 46 01 --- 17 17 59 21.7 266.8 4.8 48.4 23 F 1 789 12 45 31 12 46 01 M84 17 17 59 21.0 268.1 4.9 48.6 -7 1 1 789 12 46 01 12 46 40 --- 17 18 39 20.9 268.3 4.9 48.6 32 F 1 790 12 46 01 12 46 40 3C274 17 18 39 21.6 266.9 4.8 48.4 -7 1 1 790 12 46 40 12 47 10 --- 17 19 09 21.5 267.0 4.8 48.5 23 F 1 791 12 46 40 12 47 10 M84 17 19 09 20.8 268.3 4.9 48.6 -7 1 1 791 12 47 10 12 47 50 --- 17 19 49 20.7 268.5 4.9 48.6 32 F 1 792 12 47 10 12 47 50 3C274 17 19 49 21.4 267.1 4.8 48.5 -7 1 1 792 12 47 50 12 48 20 --- 17 20 19 21.3 267.2 4.8 48.5 23 F 1 793 12 47 50 Schedule for VLBA_HN (Code Hn ) Page 7 bw090 M87 fast 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 10 Feb 2008 Day 41 --- 12 48 20 M84 17 20 19 20.6 268.6 4.9 48.6 -7 1 1 793 12 48 20 12 49 00 --- 17 20 59 20.5 268.7 4.9 48.7 32 F 1 795 12 48 20 12 49 09 3C274 17 21 08 21.2 267.3 4.8 48.5 1 1 1 795 12 49 00 12 54 08 --- 17 26 08 20.3 268.2 4.9 48.5 299 F 1 805 12 49 00 12 56 08 3C274 17 28 08 19.9 268.5 4.9 48.5 113 1 1 805 12 55 38 13 16 04 --- 17 48 08 16.2 271.9 5.3 48.5 1197 F 1 844 12 55 56 13 19 33 3C274 17 51 37 15.6 272.5 5.3 48.5 201 1 1 844 13 19 03 13 39 30 --- 18 11 37 11.9 275.8 5.7 48.2 1197 F 1 884 13 19 21 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 -- bw090 M87 fast 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 15.635454 0.00 12 50 01.74793 * 12 33 28.04383 12 30 32.40645 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 18.904310 0.21 0851+202 20 17 58.41741 * 20 06 30.64086 20 04 35.70829 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 30.040085 0.32 * M84 13 09 49.76862 * 12 53 13.13923 12 50 17.18401 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 15.637854 0.31 1228+126 12 40 01.74901 * 12 23 28.04383 12 20 32.44552 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 37.683191 0.20 1253-055 -05 31 07.99586 *-05 47 21.52472 -05 50 09.70067 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 136.9 OJ287 169.3 M84 138.3 3C274 136.8 3C279 125.8 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