COVER INFORMATION Station: VLBA_HN (Code Hn ) Experiment: bw090 M87 fast movie. Walker, Ly, Junor, Hardee Exp. Code: bw090e 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 ---------------------------------------------------------------------------------------- --- Fri 15 Feb 2008 Day 46 --- 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 04 07 OJ287 09 54 32 64.0 213.2 1.0 25.2 0 1 1 0 05 03 37 05 06 06 --- 09 56 32 63.8 214.1 1.0 25.9 120 F 1 5 05 03 55 05 08 10 3C274 09 58 36 45.1 121.3 -2.5 -39.8 56 1 1 5 05 07 40 05 28 06 --- 10 18 36 48.1 126.8 -2.2 -36.9 1197 F 1 44 05 07 58 05 30 12 OJ287 10 20 41 61.0 224.8 1.4 33.3 54 1 1 44 05 29 42 05 32 12 --- 10 22 41 60.7 225.6 1.5 33.8 120 F 1 49 05 30 00 05 34 18 3C274 10 24 48 49.0 128.7 -2.1 -35.8 55 1 1 49 05 33 48 05 54 14 --- 10 44 48 51.7 135.0 -1.8 -32.0 1197 F 1 89 05 34 06 05 54 58 3C279 10 45 32 32.9 140.1 -2.2 -28.2 0 1 1 89 05 54 28 05 56 58 --- 10 47 32 33.1 140.6 -2.2 -27.8 120 F 1 94 05 54 46 05 57 42 3C274 10 48 16 52.2 136.2 -1.7 -31.2 0 1 1 94 05 57 12 06 17 38 --- 11 08 16 54.5 143.4 -1.4 -26.6 1197 F 1 133 05 57 30 06 19 37 OJ287 11 10 15 53.7 241.7 2.2 43.3 47 1 1 133 06 19 07 06 21 37 --- 11 12 15 53.4 242.3 2.3 43.6 120 F 1 138 06 19 25 06 23 34 3C274 11 14 12 55.2 145.7 -1.3 -25.0 47 1 1 138 06 23 04 06 28 33 --- 11 19 12 55.7 147.6 -1.2 -23.7 299 F 1 149 06 23 22 06 28 33 M84 11 19 12 56.7 149.6 -1.1 -22.3 -8 1 1 149 06 28 33 06 29 13 --- 11 19 52 56.7 149.9 -1.1 -22.1 32 F 1 150 06 28 33 06 29 13 3C274 11 19 52 55.7 147.9 -1.2 -23.5 -8 1 1 150 06 29 13 06 29 43 --- 11 20 22 55.8 148.1 -1.2 -23.3 22 F 1 151 06 29 13 06 29 43 M84 11 20 22 56.8 150.1 -1.1 -22.0 -8 1 1 151 06 29 43 06 30 23 --- 11 21 02 56.8 150.3 -1.1 -21.8 32 F 1 152 06 29 43 06 30 23 3C274 11 21 02 55.8 148.3 -1.2 -23.2 -8 1 1 152 06 30 23 06 30 53 --- 11 21 32 55.9 148.5 -1.2 -23.0 22 F 1 153 06 30 23 06 30 53 M84 11 21 32 56.9 150.6 -1.1 -21.7 -8 1 1 153 06 30 53 06 31 33 --- 11 22 12 56.9 150.8 -1.1 -21.5 32 F 1 154 06 30 53 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 ---------------------------------------------------------------------------------------- --- Fri 15 Feb 2008 Day 46 --- 06 31 33 3C274 11 22 12 56.0 148.8 -1.2 -22.8 -8 1 1 154 06 31 33 06 32 03 --- 11 22 42 56.0 149.0 -1.1 -22.7 22 F 1 155 06 31 33 06 32 03 M84 11 22 42 57.0 151.0 -1.0 -21.3 -8 1 1 155 06 32 03 06 32 43 --- 11 23 22 57.0 151.3 -1.0 -21.1 32 F 1 157 06 32 03 06 32 51 3C274 11 23 31 56.1 149.3 -1.1 -22.5 1 1 1 157 06 32 43 06 37 51 --- 11 28 31 56.5 151.4 -1.0 -21.0 299 F 1 167 06 32 43 06 39 50 3C279 11 30 31 37.5 152.6 -1.4 -19.8 76 1 1 167 06 39 20 06 41 50 --- 11 32 31 37.6 153.2 -1.4 -19.4 120 F 1 171 06 39 38 06 42 35 3C274 11 33 16 56.9 153.4 -1.0 -19.6 0 1 1 171 06 42 05 07 02 31 --- 11 53 16 58.3 162.1 -0.6 -13.3 1197 F 1 211 06 42 23 07 04 04 OJ287 11 54 49 46.1 253.0 3.0 48.2 26 1 1 211 07 03 34 07 06 04 --- 11 56 49 45.8 253.5 3.0 48.4 120 F 1 216 07 03 52 07 07 39 3C274 11 58 24 58.6 164.5 -0.5 -11.6 29 1 1 216 07 07 09 07 27 35 --- 12 18 24 59.3 173.8 -0.2 -4.6 1197 F 1 255 07 07 27 07 28 19 3C279 12 19 08 40.5 167.7 -0.6 -9.0 0 1 1 255 07 27 49 07 30 19 --- 12 21 08 40.6 168.3 -0.6 -8.6 120 F 1 260 07 28 07 07 31 03 3C274 12 21 53 59.3 175.5 -0.2 -3.4 1 1 1 260 07 30 33 07 51 00 --- 12 41 53 59.3 185.1 0.2 3.8 1197 F 1 300 07 30 51 07 52 45 OJ287 12 43 38 37.4 263.0 3.8 50.7 47 1 1 300 07 52 15 07 54 45 --- 12 45 38 37.0 263.4 3.8 50.7 120 F 1 305 07 52 33 07 56 34 3C274 12 47 28 59.2 187.7 0.3 5.8 53 1 1 305 07 56 04 08 16 31 --- 13 07 28 58.4 197.1 0.6 12.7 1197 F 1 344 07 56 22 08 17 15 3C279 13 08 12 41.2 183.8 0.2 2.8 4 1 1 344 08 16 45 08 19 15 --- 13 10 12 41.1 184.5 0.2 3.3 120 F 1 349 08 17 03 08 19 59 3C274 13 10 57 58.2 198.6 0.7 13.9 4 1 1 349 08 19 29 08 24 58 --- 13 15 57 57.9 200.9 0.7 15.5 299 F 1 360 08 19 47 08 24 58 M84 13 15 57 58.0 203.7 0.8 17.6 -8 1 1 360 08 24 58 08 25 38 --- 13 16 37 57.9 204.0 0.9 17.8 32 F 1 361 08 24 58 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 ---------------------------------------------------------------------------------------- --- Fri 15 Feb 2008 Day 46 --- 08 25 38 3C274 13 16 37 57.9 201.2 0.8 15.7 -8 1 1 361 08 25 38 08 26 08 --- 13 17 07 57.8 201.4 0.8 15.9 22 F 1 362 08 25 38 08 26 08 M84 13 17 07 57.9 204.2 0.9 17.9 -8 1 1 362 08 26 08 08 26 48 --- 13 17 47 57.9 204.5 0.9 18.1 32 F 1 363 08 26 08 08 26 48 3C274 13 17 47 57.8 201.7 0.8 16.1 -8 1 1 363 08 26 48 08 27 18 --- 13 18 17 57.8 201.9 0.8 16.2 22 F 1 364 08 26 48 08 27 18 M84 13 18 17 57.8 204.7 0.9 18.3 -8 1 1 364 08 27 18 08 27 58 --- 13 18 57 57.8 205.0 0.9 18.5 32 F 1 365 08 27 18 08 27 58 3C274 13 18 57 57.7 202.2 0.8 16.4 -8 1 1 365 08 27 58 08 28 28 --- 13 19 27 57.7 202.4 0.8 16.6 22 F 1 366 08 27 58 08 28 28 M84 13 19 27 57.7 205.2 0.9 18.6 -8 1 1 366 08 28 28 08 29 08 --- 13 20 07 57.7 205.5 0.9 18.9 32 F 1 368 08 28 28 08 29 17 3C274 13 20 16 57.6 202.8 0.8 16.9 1 1 1 368 08 29 08 08 34 16 --- 13 25 16 57.3 204.9 0.9 18.4 299 F 1 378 08 29 08 08 36 16 BLANKSKY 13 27 16 57.3 205.9 0.9 19.1 113 1 1 378 08 35 46 08 38 15 --- 13 29 16 57.1 206.7 1.0 19.7 120 F 1 382 08 36 04 08 40 06 OJ287 13 31 07 28.7 271.4 4.6 51.2 48 1 1 382 08 39 36 08 42 06 --- 13 33 07 28.4 271.7 4.6 51.2 120 F 1 387 08 39 54 08 43 56 3C274 13 34 57 56.4 209.0 1.1 21.3 47 1 1 387 08 43 26 09 03 52 --- 13 54 57 54.5 216.9 1.4 26.7 1197 F 1 427 08 43 44 09 04 37 3C279 13 55 41 39.4 199.2 1.0 14.0 8 1 1 427 09 04 07 09 06 36 --- 13 57 41 39.3 199.8 1.0 14.4 120 F 1 432 09 04 25 09 07 21 3C274 13 58 26 54.1 218.2 1.5 27.6 9 1 1 432 09 06 51 09 27 17 --- 14 18 26 51.6 225.2 1.8 32.1 1197 F 1 471 09 07 09 09 29 09 OJ287 14 20 17 19.8 279.4 5.4 50.3 42 1 1 471 09 28 39 09 31 08 --- 14 22 17 19.4 279.7 5.4 50.2 120 F 1 476 09 28 57 09 32 58 3C274 14 24 07 50.9 227.1 1.9 33.3 41 1 1 476 09 32 28 09 52 55 --- 14 44 07 48.1 233.2 2.2 36.9 1197 F 1 516 09 32 46 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 ---------------------------------------------------------------------------------------- --- Fri 15 Feb 2008 Day 46 --- 09 53 39 3C279 14 44 52 35.4 213.7 1.8 24.1 13 1 1 516 09 53 09 09 55 39 --- 14 46 52 35.2 214.3 1.8 24.5 120 F 1 520 09 53 27 09 56 23 3C274 14 47 36 47.6 234.2 2.3 37.4 14 1 1 520 09 55 53 10 16 20 --- 15 07 36 44.5 239.7 2.6 40.3 1197 F 1 560 09 56 11 10 18 26 OJ287 15 09 43 11.0 287.3 6.2 48.1 53 1 1 560 10 17 56 10 20 25 --- 15 11 43 10.6 287.6 6.3 48.0 120 F 1 565 10 18 14 10 22 31 3C274 15 13 49 43.5 241.3 2.7 41.1 54 1 1 565 10 22 01 10 27 31 --- 15 18 49 42.7 242.5 2.8 41.7 299 F 1 575 10 22 19 10 27 31 M84 15 18 49 42.1 244.4 2.9 42.6 -7 1 1 575 10 27 31 10 28 11 --- 15 19 29 42.0 244.6 2.9 42.7 33 F 1 577 10 27 31 10 28 11 3C274 15 19 29 42.6 242.7 2.8 41.8 -7 1 1 577 10 28 11 10 28 40 --- 15 19 59 42.5 242.8 2.8 41.8 23 F 1 578 10 28 11 10 28 40 M84 15 19 59 41.9 244.7 2.9 42.8 -7 1 1 578 10 28 40 10 29 20 --- 15 20 39 41.8 244.8 2.9 42.8 33 F 1 579 10 28 40 10 29 20 3C274 15 20 39 42.4 243.0 2.8 41.9 -7 1 1 579 10 29 20 10 29 50 --- 15 21 09 42.3 243.1 2.8 42.0 23 F 1 580 10 29 20 10 29 50 M84 15 21 09 41.7 245.0 2.9 42.9 -7 1 1 580 10 29 50 10 30 30 --- 15 21 49 41.6 245.1 2.9 42.9 33 F 1 581 10 29 50 10 30 30 3C274 15 21 49 42.2 243.3 2.8 42.0 -7 1 1 581 10 30 30 10 31 00 --- 15 22 19 42.1 243.4 2.9 42.1 23 F 1 582 10 30 30 10 31 00 M84 15 22 19 41.5 245.2 2.9 43.0 -7 1 1 582 10 31 00 10 31 40 --- 15 22 59 41.4 245.4 3.0 43.1 33 F 1 584 10 31 00 10 31 49 3C274 15 23 08 42.0 243.6 2.9 42.2 2 1 1 584 10 31 40 10 36 48 --- 15 28 08 41.2 244.8 2.9 42.7 299 F 1 593 10 31 40 10 37 32 3C279 15 28 52 30.3 225.2 2.5 31.5 16 1 1 593 10 37 02 10 39 31 --- 15 30 52 30.0 225.7 2.6 31.8 120 F 1 598 10 37 20 10 40 15 3C274 15 31 35 40.6 245.6 3.0 43.1 16 1 1 598 10 39 45 11 00 12 --- 15 51 35 37.2 250.1 3.3 44.8 1197 F 1 638 10 40 03 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 ---------------------------------------------------------------------------------------- --- Fri 15 Feb 2008 Day 46 --- 11 08 17 3C274 15 59 43 35.8 251.9 3.5 45.4 477 1 1 638 11 07 47 11 28 14 --- 16 19 43 32.3 256.0 3.8 46.6 1197 F 1 677 11 08 05 11 28 55 3C279 16 20 23 22.9 237.0 3.4 38.1 16 1 1 677 11 28 25 11 30 55 --- 16 22 23 22.6 237.4 3.4 38.3 120 F 1 682 11 28 43 11 31 35 3C274 16 23 04 31.7 256.6 3.9 46.8 16 1 1 682 11 31 05 11 51 32 --- 16 43 04 28.1 260.5 4.2 47.7 1197 F 1 722 11 31 23 11 52 11 3C279 16 43 43 19.3 241.8 3.8 40.4 15 1 1 722 11 51 32 11 54 11 --- 16 45 43 18.9 242.2 3.8 40.6 120 F 1 727 11 51 32 11 54 50 3C274 16 46 22 27.5 261.1 4.3 47.8 16 1 1 727 11 54 11 12 14 46 --- 17 06 22 23.9 264.7 4.6 48.3 1197 F 1 767 11 54 11 12 15 26 3C279 17 07 02 15.4 246.4 4.2 42.4 17 1 1 767 12 14 46 12 17 26 --- 17 09 02 15.1 246.8 4.2 42.6 120 F 1 772 12 14 46 12 18 07 BLANKSKY 17 09 43 23.4 265.4 4.6 48.4 18 1 1 772 12 17 37 12 20 06 --- 17 11 43 23.0 265.8 4.7 48.4 120 F 1 777 12 17 55 12 20 12 3C274 17 11 49 22.9 265.7 4.7 48.4 0 1 1 777 12 20 06 12 25 11 --- 17 16 49 22.0 266.5 4.8 48.4 299 F 1 787 12 20 06 12 25 11 M84 17 16 49 21.2 267.9 4.9 48.6 -7 1 1 787 12 25 11 12 25 51 --- 17 17 29 21.1 268.1 4.9 48.6 32 F 1 788 12 25 11 12 25 51 3C274 17 17 29 21.8 266.7 4.8 48.4 -7 1 1 788 12 25 51 12 26 21 --- 17 17 59 21.7 266.7 4.8 48.4 23 F 1 789 12 25 51 12 26 21 M84 17 17 59 21.0 268.1 4.9 48.6 -7 1 1 789 12 26 21 12 27 01 --- 17 18 39 20.9 268.3 4.9 48.6 32 F 1 790 12 26 21 12 27 01 3C274 17 18 39 21.6 266.9 4.8 48.4 -7 1 1 790 12 27 01 12 27 31 --- 17 19 09 21.5 267.0 4.8 48.5 23 F 1 791 12 27 01 12 27 31 M84 17 19 09 20.8 268.3 4.9 48.6 -7 1 1 791 12 27 31 12 28 11 --- 17 19 49 20.7 268.5 4.9 48.6 32 F 1 792 12 27 31 12 28 11 3C274 17 19 49 21.4 267.1 4.8 48.5 -7 1 1 792 12 28 11 12 28 41 --- 17 20 19 21.3 267.2 4.8 48.5 23 F 1 793 12 28 11 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 ---------------------------------------------------------------------------------------- --- Fri 15 Feb 2008 Day 46 --- 12 28 41 M84 17 20 19 20.6 268.6 4.9 48.6 -7 1 1 793 12 28 41 12 29 20 --- 17 20 59 20.5 268.7 4.9 48.7 32 F 1 795 12 28 41 12 29 29 3C274 17 21 08 21.2 267.3 4.8 48.5 1 1 1 795 12 29 20 12 34 28 --- 17 26 08 20.3 268.2 4.9 48.5 299 F 1 805 12 29 20 12 36 28 3C274 17 28 08 19.9 268.5 4.9 48.5 113 1 1 805 12 35 58 12 56 25 --- 17 48 08 16.2 271.9 5.3 48.5 1197 F 1 844 12 36 16 12 59 53 3C274 17 51 37 15.6 272.5 5.3 48.5 201 1 1 844 12 59 23 13 19 50 --- 18 11 37 11.9 275.8 5.7 48.2 1197 F 1 884 12 59 41 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 15.750141 0.00 12 50 01.74793 * 12 33 28.04383 12 30 32.05352 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 18.917237 0.21 0851+202 20 17 58.41741 * 20 06 30.64086 20 04 35.62209 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 30.152616 0.32 * M84 13 09 49.76862 * 12 53 13.13923 12 50 16.84092 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 15.752528 0.31 1228+126 12 40 01.74901 * 12 23 28.04383 12 20 32.08860 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 37.809653 0.20 1253-055 -05 31 07.99586 *-05 47 21.52472 -05 50 10.44260 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 141.5 OJ287 164.3 M84 143.0 3C274 141.5 3C279 130.8 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