COVER INFORMATION Station: VLBA_HN (Code Hn ) Experiment: bw090 M87 fast movie. Walker, Ly, Junor, Hardee Exp. Code: bw090f 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 ---------------------------------------------------------------------------------------- --- Wed 20 Feb 2008 Day 51 --- 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 04 44 27 OJ287 09 54 32 64.0 213.2 1.0 25.2 0 1 1 0 04 43 57 04 46 27 --- 09 56 32 63.8 214.1 1.0 25.9 120 F 1 5 04 44 15 04 48 30 3C274 09 58 36 45.1 121.3 -2.5 -39.8 56 1 1 5 04 48 00 05 08 27 --- 10 18 36 48.1 126.8 -2.2 -36.9 1197 F 1 44 04 48 18 05 10 32 OJ287 10 20 41 61.0 224.8 1.4 33.3 54 1 1 44 05 10 02 05 12 32 --- 10 22 41 60.7 225.6 1.5 33.8 120 F 1 49 05 10 20 05 14 38 3C274 10 24 48 49.0 128.7 -2.1 -35.8 55 1 1 49 05 14 08 05 34 35 --- 10 44 48 51.7 135.0 -1.8 -32.0 1197 F 1 89 05 14 26 05 35 18 3C279 10 45 32 32.9 140.1 -2.2 -28.2 0 1 1 89 05 34 48 05 37 18 --- 10 47 32 33.1 140.6 -2.2 -27.8 120 F 1 94 05 35 06 05 38 02 3C274 10 48 16 52.2 136.2 -1.7 -31.2 0 1 1 94 05 37 32 05 57 59 --- 11 08 16 54.5 143.4 -1.4 -26.6 1197 F 1 133 05 37 50 05 59 58 OJ287 11 10 15 53.7 241.7 2.2 43.3 47 1 1 133 05 59 28 06 01 57 --- 11 12 15 53.4 242.3 2.3 43.6 120 F 1 138 05 59 46 06 03 54 3C274 11 14 12 55.2 145.7 -1.3 -25.0 47 1 1 138 06 03 24 06 08 54 --- 11 19 12 55.7 147.6 -1.2 -23.7 299 F 1 149 06 03 42 06 08 54 M84 11 19 12 56.7 149.6 -1.1 -22.3 -8 1 1 149 06 08 54 06 09 34 --- 11 19 52 56.7 149.9 -1.1 -22.1 32 F 1 150 06 08 54 06 09 34 3C274 11 19 52 55.7 147.9 -1.2 -23.5 -8 1 1 150 06 09 34 06 10 03 --- 11 20 22 55.8 148.1 -1.2 -23.3 22 F 1 151 06 09 34 06 10 03 M84 11 20 22 56.8 150.1 -1.1 -22.0 -8 1 1 151 06 10 03 06 10 43 --- 11 21 02 56.8 150.3 -1.1 -21.8 32 F 1 152 06 10 03 06 10 43 3C274 11 21 02 55.8 148.3 -1.2 -23.2 -8 1 1 152 06 10 43 06 11 13 --- 11 21 32 55.9 148.5 -1.2 -23.0 22 F 1 153 06 10 43 06 11 13 M84 11 21 32 56.9 150.6 -1.1 -21.7 -8 1 1 153 06 11 13 06 11 53 --- 11 22 12 56.9 150.8 -1.1 -21.5 32 F 1 154 06 11 13 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 ---------------------------------------------------------------------------------------- --- Wed 20 Feb 2008 Day 51 --- 06 11 53 3C274 11 22 12 56.0 148.8 -1.2 -22.8 -8 1 1 154 06 11 53 06 12 23 --- 11 22 42 56.0 149.0 -1.1 -22.7 22 F 1 155 06 11 53 06 12 23 M84 11 22 42 57.0 151.0 -1.0 -21.3 -8 1 1 155 06 12 23 06 13 03 --- 11 23 22 57.0 151.3 -1.0 -21.1 32 F 1 157 06 12 23 06 13 12 3C274 11 23 31 56.1 149.3 -1.1 -22.5 1 1 1 157 06 13 03 06 18 11 --- 11 28 31 56.5 151.4 -1.0 -21.0 299 F 1 167 06 13 03 06 20 11 3C279 11 30 31 37.5 152.6 -1.4 -19.8 76 1 1 167 06 19 41 06 22 10 --- 11 32 31 37.6 153.2 -1.4 -19.4 120 F 1 171 06 19 59 06 22 55 3C274 11 33 16 56.9 153.4 -1.0 -19.6 0 1 1 171 06 22 25 06 42 52 --- 11 53 16 58.3 162.1 -0.6 -13.3 1197 F 1 211 06 22 43 06 44 25 OJ287 11 54 49 46.1 253.0 3.0 48.2 26 1 1 211 06 43 55 06 46 24 --- 11 56 49 45.8 253.5 3.0 48.4 120 F 1 216 06 44 13 06 47 59 3C274 11 58 24 58.6 164.5 -0.5 -11.6 29 1 1 216 06 47 29 07 07 56 --- 12 18 24 59.3 173.8 -0.2 -4.6 1197 F 1 255 06 47 47 07 08 40 3C279 12 19 08 40.5 167.7 -0.6 -9.0 0 1 1 255 07 08 10 07 10 39 --- 12 21 08 40.6 168.3 -0.6 -8.6 120 F 1 260 07 08 28 07 11 24 3C274 12 21 53 59.3 175.5 -0.2 -3.4 1 1 1 260 07 10 54 07 31 20 --- 12 41 53 59.3 185.1 0.2 3.8 1197 F 1 300 07 11 12 07 33 05 OJ287 12 43 38 37.4 263.0 3.8 50.7 47 1 1 300 07 32 35 07 35 05 --- 12 45 38 37.0 263.4 3.8 50.7 120 F 1 305 07 32 53 07 36 55 3C274 12 47 28 59.2 187.7 0.3 5.8 53 1 1 305 07 36 25 07 56 51 --- 13 07 28 58.4 197.1 0.6 12.7 1197 F 1 344 07 36 43 07 57 36 3C279 13 08 12 41.2 183.8 0.2 2.8 4 1 1 344 07 57 06 07 59 35 --- 13 10 12 41.1 184.5 0.2 3.3 120 F 1 349 07 57 24 08 00 20 3C274 13 10 57 58.2 198.6 0.7 13.9 4 1 1 349 07 59 50 08 05 19 --- 13 15 57 57.9 200.9 0.7 15.5 299 F 1 360 08 00 08 08 05 19 M84 13 15 57 58.0 203.7 0.8 17.6 -8 1 1 360 08 05 19 08 05 59 --- 13 16 37 57.9 204.0 0.9 17.8 32 F 1 361 08 05 19 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 ---------------------------------------------------------------------------------------- --- Wed 20 Feb 2008 Day 51 --- 08 05 59 3C274 13 16 37 57.9 201.2 0.8 15.7 -8 1 1 361 08 05 59 08 06 29 --- 13 17 07 57.8 201.4 0.8 15.9 22 F 1 362 08 05 59 08 06 29 M84 13 17 07 57.9 204.2 0.9 17.9 -8 1 1 362 08 06 29 08 07 09 --- 13 17 47 57.9 204.5 0.9 18.1 32 F 1 363 08 06 29 08 07 09 3C274 13 17 47 57.8 201.7 0.8 16.1 -8 1 1 363 08 07 09 08 07 39 --- 13 18 17 57.8 201.9 0.8 16.2 22 F 1 364 08 07 09 08 07 39 M84 13 18 17 57.8 204.7 0.9 18.3 -8 1 1 364 08 07 39 08 08 18 --- 13 18 57 57.8 205.0 0.9 18.5 32 F 1 365 08 07 39 08 08 18 3C274 13 18 57 57.7 202.2 0.8 16.4 -8 1 1 365 08 08 18 08 08 48 --- 13 19 27 57.7 202.4 0.8 16.6 22 F 1 366 08 08 18 08 08 48 M84 13 19 27 57.7 205.2 0.9 18.6 -8 1 1 366 08 08 48 08 09 28 --- 13 20 07 57.7 205.5 0.9 18.9 32 F 1 368 08 08 48 08 09 37 3C274 13 20 16 57.6 202.8 0.8 16.9 1 1 1 368 08 09 28 08 14 36 --- 13 25 16 57.3 204.9 0.9 18.4 299 F 1 378 08 09 28 08 16 36 BLANKSKY 13 27 16 57.3 205.9 0.9 19.1 113 1 1 378 08 16 06 08 18 36 --- 13 29 16 57.1 206.7 1.0 19.7 120 F 1 382 08 16 24 08 20 27 OJ287 13 31 07 28.7 271.4 4.6 51.2 48 1 1 382 08 19 57 08 22 26 --- 13 33 07 28.4 271.7 4.6 51.2 120 F 1 387 08 20 15 08 24 16 3C274 13 34 57 56.4 209.0 1.1 21.3 47 1 1 387 08 23 46 08 44 13 --- 13 54 57 54.5 216.9 1.4 26.7 1197 F 1 427 08 24 04 08 44 57 3C279 13 55 41 39.4 199.2 1.0 14.0 8 1 1 427 08 44 27 08 46 57 --- 13 57 41 39.3 199.8 1.0 14.4 120 F 1 432 08 44 45 08 47 41 3C274 13 58 26 54.1 218.2 1.5 27.6 9 1 1 432 08 47 11 09 07 38 --- 14 18 26 51.6 225.2 1.8 32.1 1197 F 1 471 08 47 29 09 09 29 OJ287 14 20 18 19.8 279.4 5.4 50.3 42 1 1 471 09 08 59 09 11 29 --- 14 22 18 19.4 279.7 5.4 50.2 120 F 1 476 09 09 17 09 13 18 3C274 14 24 07 50.9 227.1 1.9 33.3 41 1 1 476 09 12 48 09 33 15 --- 14 44 07 48.1 233.2 2.2 36.9 1197 F 1 516 09 13 06 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 ---------------------------------------------------------------------------------------- --- Wed 20 Feb 2008 Day 51 --- 09 33 59 3C279 14 44 52 35.4 213.7 1.8 24.1 13 1 1 516 09 33 29 09 35 59 --- 14 46 52 35.2 214.3 1.8 24.5 120 F 1 520 09 33 47 09 36 44 3C274 14 47 36 47.6 234.2 2.3 37.4 14 1 1 520 09 36 14 09 56 40 --- 15 07 36 44.5 239.7 2.6 40.3 1197 F 1 560 09 36 32 09 58 46 OJ287 15 09 43 11.0 287.3 6.2 48.1 53 1 1 560 09 58 16 10 00 46 --- 15 11 43 10.6 287.6 6.3 48.0 120 F 1 565 09 58 34 10 02 52 3C274 15 13 49 43.5 241.3 2.7 41.1 54 1 1 565 10 02 22 10 07 51 --- 15 18 49 42.7 242.5 2.8 41.7 299 F 1 575 10 02 40 10 07 51 M84 15 18 49 42.1 244.4 2.9 42.6 -7 1 1 575 10 07 51 10 08 31 --- 15 19 29 42.0 244.6 2.9 42.7 33 F 1 577 10 07 51 10 08 31 3C274 15 19 29 42.6 242.7 2.8 41.8 -7 1 1 577 10 08 31 10 09 01 --- 15 19 59 42.5 242.8 2.8 41.8 23 F 1 578 10 08 31 10 09 01 M84 15 19 59 41.9 244.7 2.9 42.8 -7 1 1 578 10 09 01 10 09 41 --- 15 20 39 41.8 244.8 2.9 42.8 33 F 1 579 10 09 01 10 09 41 3C274 15 20 39 42.4 243.0 2.8 41.9 -7 1 1 579 10 09 41 10 10 11 --- 15 21 09 42.3 243.1 2.8 42.0 23 F 1 580 10 09 41 10 10 11 M84 15 21 09 41.7 245.0 2.9 42.9 -7 1 1 580 10 10 11 10 10 51 --- 15 21 49 41.6 245.1 2.9 42.9 33 F 1 581 10 10 11 10 10 51 3C274 15 21 49 42.2 243.3 2.8 42.0 -7 1 1 581 10 10 51 10 11 21 --- 15 22 19 42.1 243.4 2.9 42.1 23 F 1 582 10 10 51 10 11 21 M84 15 22 19 41.5 245.2 2.9 43.0 -7 1 1 582 10 11 21 10 12 00 --- 15 22 59 41.4 245.4 3.0 43.1 33 F 1 584 10 11 21 10 12 09 3C274 15 23 08 42.0 243.6 2.9 42.2 2 1 1 584 10 12 00 10 17 09 --- 15 28 08 41.2 244.8 2.9 42.7 299 F 1 593 10 12 00 10 17 52 3C279 15 28 52 30.3 225.2 2.5 31.5 16 1 1 593 10 17 22 10 19 52 --- 15 30 52 30.0 225.7 2.6 31.8 120 F 1 598 10 17 40 10 20 35 3C274 15 31 35 40.6 245.6 3.0 43.1 16 1 1 598 10 20 05 10 40 32 --- 15 51 35 37.2 250.1 3.3 44.8 1197 F 1 638 10 20 23 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 ---------------------------------------------------------------------------------------- --- Wed 20 Feb 2008 Day 51 --- 10 48 38 3C274 15 59 43 35.8 251.9 3.5 45.4 477 1 1 638 10 48 08 11 08 35 --- 16 19 43 32.3 256.0 3.8 46.6 1197 F 1 677 10 48 26 11 09 15 3C279 16 20 23 22.9 237.0 3.4 38.1 16 1 1 677 11 08 45 11 11 15 --- 16 22 23 22.6 237.4 3.4 38.3 120 F 1 682 11 09 03 11 11 56 3C274 16 23 04 31.7 256.6 3.9 46.8 16 1 1 682 11 11 26 11 31 52 --- 16 43 04 28.1 260.5 4.2 47.7 1197 F 1 722 11 11 44 11 32 32 3C279 16 43 43 19.3 241.8 3.8 40.4 15 1 1 722 11 31 52 11 34 31 --- 16 45 43 18.9 242.2 3.8 40.6 120 F 1 727 11 31 52 11 35 10 3C274 16 46 22 27.5 261.1 4.3 47.8 16 1 1 727 11 34 31 11 55 07 --- 17 06 22 23.9 264.7 4.6 48.3 1197 F 1 767 11 34 31 11 55 47 3C279 17 07 02 15.4 246.4 4.2 42.4 17 1 1 767 11 55 07 11 57 46 --- 17 09 02 15.1 246.8 4.2 42.5 120 F 1 772 11 55 07 11 58 27 BLANKSKY 17 09 43 23.4 265.4 4.6 48.4 18 1 1 772 11 57 57 12 00 27 --- 17 11 43 23.0 265.8 4.7 48.4 120 F 1 777 11 58 15 12 00 32 3C274 17 11 49 22.9 265.7 4.7 48.4 0 1 1 777 12 00 27 12 05 32 --- 17 16 49 22.0 266.5 4.8 48.4 299 F 1 787 12 00 27 12 05 32 M84 17 16 49 21.2 267.9 4.9 48.6 -7 1 1 787 12 05 32 12 06 12 --- 17 17 29 21.1 268.1 4.9 48.6 32 F 1 788 12 05 32 12 06 12 3C274 17 17 29 21.8 266.7 4.8 48.4 -7 1 1 788 12 06 12 12 06 41 --- 17 17 59 21.7 266.7 4.8 48.4 23 F 1 789 12 06 12 12 06 41 M84 17 17 59 21.0 268.1 4.9 48.6 -7 1 1 789 12 06 41 12 07 21 --- 17 18 39 20.9 268.3 4.9 48.6 32 F 1 790 12 06 41 12 07 21 3C274 17 18 39 21.6 266.9 4.8 48.4 -7 1 1 790 12 07 21 12 07 51 --- 17 19 09 21.5 267.0 4.8 48.5 23 F 1 791 12 07 21 12 07 51 M84 17 19 09 20.8 268.3 4.9 48.6 -7 1 1 791 12 07 51 12 08 31 --- 17 19 49 20.7 268.5 4.9 48.6 32 F 1 792 12 07 51 12 08 31 3C274 17 19 49 21.4 267.1 4.8 48.5 -7 1 1 792 12 08 31 12 09 01 --- 17 20 19 21.3 267.2 4.8 48.5 23 F 1 793 12 08 31 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 ---------------------------------------------------------------------------------------- --- Wed 20 Feb 2008 Day 51 --- 12 09 01 M84 17 20 19 20.6 268.5 4.9 48.6 -7 1 1 793 12 09 01 12 09 41 --- 17 20 59 20.5 268.7 4.9 48.7 32 F 1 795 12 09 01 12 09 50 3C274 17 21 08 21.2 267.3 4.8 48.5 1 1 1 795 12 09 41 12 14 49 --- 17 26 08 20.3 268.2 4.9 48.5 299 F 1 805 12 09 41 12 16 49 3C274 17 28 08 19.9 268.5 4.9 48.5 113 1 1 805 12 16 19 12 36 45 --- 17 48 08 16.2 271.9 5.3 48.5 1197 F 1 844 12 16 37 12 40 14 3C274 17 51 37 15.6 272.5 5.3 48.5 201 1 1 844 12 39 44 13 00 10 --- 18 11 37 11.9 275.8 5.7 48.2 1197 F 1 884 12 40 02 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 15.893220 0.00 12 50 01.74793 * 12 33 28.04383 12 30 31.52343 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 18.961101 0.21 0851+202 20 17 58.41741 * 20 06 30.64086 20 04 35.67789 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 30.293591 0.32 * M84 13 09 49.76862 * 12 53 13.13923 12 50 16.32837 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 15.895534 0.31 1228+126 12 40 01.74901 * 12 23 28.04383 12 20 31.55430 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 37.958869 0.20 1253-055 -05 31 07.99586 *-05 47 21.52472 -05 50 11.42389 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 146.1 OJ287 159.3 M84 147.5 3C274 146.1 3C279 135.8 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