COVER INFORMATION Station: VLBA_HN (Code Hn ) Experiment: bw090 M87 fast movie. Walker, Ly, Junor, Hardee Exp. Code: bw090a 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 ---------------------------------------------------------------------------------------- --- Sat 26 Jan 2008 Day 26 --- 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 06 22 45 OJ287 09 54 32 64.0 213.2 1.0 25.2 0 1 1 0 06 22 15 06 24 44 --- 09 56 32 63.8 214.1 1.0 25.9 120 F 1 5 06 22 33 06 26 48 3C274 09 58 36 45.1 121.3 -2.5 -39.8 56 1 1 5 06 26 18 06 46 45 --- 10 18 36 48.1 126.8 -2.2 -36.9 1197 F 1 44 06 26 36 06 48 50 OJ287 10 20 41 61.0 224.8 1.4 33.3 54 1 1 44 06 48 20 06 50 50 --- 10 22 41 60.7 225.6 1.5 33.8 120 F 1 49 06 48 38 06 52 56 3C274 10 24 48 49.0 128.7 -2.1 -35.8 55 1 1 49 06 52 26 07 12 53 --- 10 44 48 51.7 135.1 -1.8 -32.0 1197 F 1 89 06 52 44 07 13 36 3C279 10 45 32 32.9 140.1 -2.2 -28.2 0 1 1 89 07 13 06 07 15 36 --- 10 47 32 33.1 140.6 -2.2 -27.8 120 F 1 94 07 13 24 07 16 20 3C274 10 48 16 52.2 136.2 -1.7 -31.2 0 1 1 94 07 15 50 07 36 17 --- 11 08 16 54.5 143.4 -1.4 -26.6 1197 F 1 133 07 16 08 07 38 16 OJ287 11 10 15 53.7 241.7 2.2 43.3 47 1 1 133 07 37 46 07 40 15 --- 11 12 15 53.4 242.3 2.3 43.6 120 F 1 138 07 38 04 07 42 12 3C274 11 14 12 55.2 145.7 -1.3 -25.0 47 1 1 138 07 41 42 07 47 11 --- 11 19 12 55.7 147.6 -1.2 -23.7 299 F 1 149 07 42 00 07 47 11 M84 11 19 12 56.7 149.6 -1.1 -22.3 -8 1 1 149 07 47 11 07 47 51 --- 11 19 52 56.7 149.9 -1.1 -22.1 32 F 1 150 07 47 11 07 47 51 3C274 11 19 52 55.7 147.9 -1.2 -23.5 -8 1 1 150 07 47 51 07 48 21 --- 11 20 22 55.8 148.1 -1.2 -23.3 22 F 1 151 07 47 51 07 48 21 M84 11 20 22 56.8 150.1 -1.1 -22.0 -8 1 1 151 07 48 21 07 49 01 --- 11 21 02 56.8 150.3 -1.1 -21.8 32 F 1 152 07 48 21 07 49 01 3C274 11 21 02 55.8 148.3 -1.2 -23.2 -8 1 1 152 07 49 01 07 49 31 --- 11 21 32 55.9 148.5 -1.2 -23.0 22 F 1 153 07 49 01 07 49 31 M84 11 21 32 56.9 150.6 -1.1 -21.7 -8 1 1 153 07 49 31 07 50 11 --- 11 22 12 56.9 150.8 -1.1 -21.5 32 F 1 154 07 49 31 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 ---------------------------------------------------------------------------------------- --- Sat 26 Jan 2008 Day 26 --- 07 50 11 3C274 11 22 12 56.0 148.8 -1.2 -22.8 -8 1 1 154 07 50 11 07 50 41 --- 11 22 42 56.0 149.0 -1.1 -22.7 22 F 1 155 07 50 11 07 50 41 M84 11 22 42 57.0 151.0 -1.0 -21.3 -8 1 1 155 07 50 41 07 51 21 --- 11 23 22 57.0 151.3 -1.0 -21.1 32 F 1 157 07 50 41 07 51 30 3C274 11 23 31 56.1 149.3 -1.1 -22.5 1 1 1 157 07 51 21 07 56 29 --- 11 28 31 56.5 151.4 -1.0 -21.0 299 F 1 167 07 51 21 07 58 28 3C279 11 30 31 37.5 152.6 -1.4 -19.8 76 1 1 167 07 57 58 08 00 28 --- 11 32 31 37.6 153.2 -1.4 -19.4 120 F 1 171 07 58 16 08 01 13 3C274 11 33 16 56.9 153.4 -1.0 -19.6 0 1 1 171 08 00 43 08 21 09 --- 11 53 16 58.3 162.1 -0.6 -13.3 1197 F 1 211 08 01 01 08 22 43 OJ287 11 54 49 46.1 253.0 3.0 48.2 26 1 1 211 08 22 13 08 24 42 --- 11 56 49 45.8 253.5 3.0 48.4 120 F 1 216 08 22 31 08 26 17 3C274 11 58 24 58.6 164.5 -0.5 -11.6 29 1 1 216 08 25 47 08 46 14 --- 12 18 24 59.3 173.8 -0.2 -4.6 1197 F 1 255 08 26 05 08 46 57 3C279 12 19 08 40.5 167.7 -0.6 -9.0 0 1 1 255 08 46 27 08 48 57 --- 12 21 08 40.6 168.3 -0.6 -8.5 120 F 1 260 08 46 45 08 49 41 3C274 12 21 53 59.3 175.5 -0.2 -3.4 1 1 1 260 08 49 11 09 09 38 --- 12 41 53 59.3 185.1 0.2 3.8 1197 F 1 300 08 49 29 09 11 23 OJ287 12 43 38 37.4 263.0 3.8 50.7 47 1 1 300 09 10 53 09 13 23 --- 12 45 38 37.0 263.4 3.8 50.7 120 F 1 305 09 11 11 09 15 12 3C274 12 47 28 59.2 187.7 0.3 5.8 53 1 1 305 09 14 42 09 35 09 --- 13 07 28 58.4 197.1 0.6 12.7 1197 F 1 344 09 15 00 09 35 53 3C279 13 08 12 41.2 183.8 0.2 2.8 4 1 1 344 09 35 23 09 37 53 --- 13 10 12 41.1 184.5 0.2 3.3 120 F 1 349 09 35 41 09 38 37 3C274 13 10 57 58.2 198.6 0.7 13.9 4 1 1 349 09 38 07 09 43 37 --- 13 15 57 57.9 200.9 0.7 15.5 299 F 1 360 09 38 25 09 43 37 M84 13 15 57 58.0 203.7 0.8 17.6 -8 1 1 360 09 43 37 09 44 17 --- 13 16 37 57.9 204.0 0.9 17.8 32 F 1 361 09 43 37 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 ---------------------------------------------------------------------------------------- --- Sat 26 Jan 2008 Day 26 --- 09 44 17 3C274 13 16 37 57.9 201.2 0.8 15.7 -8 1 1 361 09 44 17 09 44 46 --- 13 17 07 57.8 201.4 0.8 15.9 22 F 1 362 09 44 17 09 44 46 M84 13 17 07 57.9 204.2 0.9 17.9 -8 1 1 362 09 44 46 09 45 26 --- 13 17 47 57.9 204.5 0.9 18.1 32 F 1 363 09 44 46 09 45 26 3C274 13 17 47 57.8 201.7 0.8 16.1 -8 1 1 363 09 45 26 09 45 56 --- 13 18 17 57.8 201.9 0.8 16.2 22 F 1 364 09 45 26 09 45 56 M84 13 18 17 57.8 204.7 0.9 18.3 -8 1 1 364 09 45 56 09 46 36 --- 13 18 57 57.8 205.0 0.9 18.5 32 F 1 365 09 45 56 09 46 36 3C274 13 18 57 57.7 202.2 0.8 16.4 -8 1 1 365 09 46 36 09 47 06 --- 13 19 27 57.7 202.4 0.8 16.6 22 F 1 366 09 46 36 09 47 06 M84 13 19 27 57.7 205.2 0.9 18.7 -8 1 1 366 09 47 06 09 47 46 --- 13 20 07 57.7 205.5 0.9 18.9 32 F 1 368 09 47 06 09 47 55 3C274 13 20 16 57.6 202.8 0.8 16.9 1 1 1 368 09 47 46 09 52 54 --- 13 25 16 57.3 204.9 0.9 18.4 299 F 1 378 09 47 46 09 54 54 BLANKSKY 13 27 16 57.3 205.9 0.9 19.1 113 1 1 378 09 54 24 09 56 53 --- 13 29 16 57.1 206.7 1.0 19.7 120 F 1 382 09 54 42 09 58 45 OJ287 13 31 07 28.7 271.4 4.6 51.2 48 1 1 382 09 58 15 10 00 44 --- 13 33 07 28.4 271.7 4.6 51.2 120 F 1 387 09 58 33 10 02 34 3C274 13 34 57 56.4 209.0 1.1 21.3 47 1 1 387 10 02 04 10 22 30 --- 13 54 57 54.5 216.9 1.4 26.7 1197 F 1 427 10 02 22 10 23 15 3C279 13 55 41 39.4 199.2 1.0 14.0 8 1 1 427 10 22 45 10 25 14 --- 13 57 41 39.3 199.8 1.0 14.4 120 F 1 432 10 23 03 10 25 59 3C274 13 58 26 54.1 218.2 1.5 27.6 9 1 1 432 10 25 29 10 45 56 --- 14 18 26 51.6 225.2 1.8 32.1 1197 F 1 471 10 25 47 10 47 47 OJ287 14 20 17 19.8 279.4 5.4 50.3 42 1 1 471 10 47 17 10 49 47 --- 14 22 17 19.4 279.7 5.4 50.2 120 F 1 476 10 47 35 10 51 36 3C274 14 24 07 50.9 227.1 1.9 33.3 41 1 1 476 10 51 06 11 11 33 --- 14 44 07 48.1 233.2 2.2 36.9 1197 F 1 516 10 51 24 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 ---------------------------------------------------------------------------------------- --- Sat 26 Jan 2008 Day 26 --- 11 12 17 3C279 14 44 52 35.4 213.7 1.8 24.1 13 1 1 516 11 11 47 11 14 17 --- 14 46 52 35.2 214.3 1.8 24.5 120 F 1 520 11 12 05 11 15 01 3C274 14 47 36 47.6 234.2 2.3 37.4 14 1 1 520 11 14 31 11 34 58 --- 15 07 36 44.5 239.7 2.6 40.3 1197 F 1 560 11 14 49 11 37 04 OJ287 15 09 43 11.0 287.3 6.2 48.1 53 1 1 560 11 36 34 11 39 04 --- 15 11 43 10.6 287.6 6.3 48.0 120 F 1 565 11 36 52 11 41 10 3C274 15 13 49 43.5 241.3 2.7 41.1 54 1 1 565 11 40 40 11 46 09 --- 15 18 49 42.7 242.5 2.8 41.7 299 F 1 575 11 40 58 11 46 09 M84 15 18 49 42.1 244.4 2.9 42.6 -7 1 1 575 11 46 09 11 46 49 --- 15 19 29 42.0 244.6 2.9 42.7 33 F 1 577 11 46 09 11 46 49 3C274 15 19 29 42.6 242.7 2.8 41.8 -7 1 1 577 11 46 49 11 47 19 --- 15 19 59 42.5 242.8 2.8 41.8 23 F 1 578 11 46 49 11 47 19 M84 15 19 59 41.9 244.7 2.9 42.8 -7 1 1 578 11 47 19 11 47 59 --- 15 20 39 41.8 244.9 2.9 42.8 33 F 1 579 11 47 19 11 47 59 3C274 15 20 39 42.4 243.0 2.8 41.9 -7 1 1 579 11 47 59 11 48 28 --- 15 21 09 42.3 243.1 2.8 42.0 23 F 1 580 11 47 59 11 48 28 M84 15 21 09 41.7 245.0 2.9 42.9 -7 1 1 580 11 48 28 11 49 08 --- 15 21 49 41.6 245.1 2.9 42.9 33 F 1 581 11 48 28 11 49 08 3C274 15 21 49 42.2 243.3 2.8 42.0 -7 1 1 581 11 49 08 11 49 38 --- 15 22 19 42.1 243.4 2.9 42.1 23 F 1 582 11 49 08 11 49 38 M84 15 22 19 41.5 245.3 2.9 43.0 -7 1 1 582 11 49 38 11 50 18 --- 15 22 59 41.4 245.4 3.0 43.1 33 F 1 584 11 49 38 11 50 27 3C274 15 23 08 42.0 243.6 2.9 42.2 2 1 1 584 11 50 18 11 55 26 --- 15 28 08 41.2 244.8 2.9 42.7 299 F 1 593 11 50 18 11 56 10 3C279 15 28 52 30.3 225.2 2.5 31.5 16 1 1 593 11 55 40 11 58 09 --- 15 30 52 30.0 225.7 2.6 31.8 120 F 1 598 11 55 58 11 58 53 3C274 15 31 35 40.6 245.6 3.0 43.1 16 1 1 598 11 58 23 12 18 50 --- 15 51 35 37.2 250.2 3.3 44.8 1197 F 1 638 11 58 41 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 ---------------------------------------------------------------------------------------- --- Sat 26 Jan 2008 Day 26 --- 12 26 56 3C274 15 59 43 35.8 251.9 3.5 45.4 477 1 1 638 12 26 26 12 46 52 --- 16 19 43 32.3 256.0 3.8 46.6 1197 F 1 677 12 26 44 12 47 33 3C279 16 20 23 22.9 237.0 3.4 38.1 16 1 1 677 12 47 03 12 49 33 --- 16 22 23 22.6 237.4 3.4 38.3 120 F 1 682 12 47 21 12 50 13 3C274 16 23 04 31.7 256.6 3.9 46.8 16 1 1 682 12 49 43 13 10 10 --- 16 43 04 28.1 260.5 4.2 47.7 1197 F 1 722 12 50 01 13 10 49 3C279 16 43 43 19.3 241.8 3.8 40.4 15 1 1 722 13 10 10 13 12 49 --- 16 45 43 18.9 242.2 3.8 40.6 120 F 1 727 13 10 10 13 13 28 3C274 16 46 22 27.5 261.1 4.3 47.8 16 1 1 727 13 12 49 13 33 24 --- 17 06 22 23.9 264.7 4.6 48.3 1197 F 1 767 13 12 49 13 34 04 3C279 17 07 02 15.4 246.4 4.2 42.4 17 1 1 767 13 33 24 13 36 04 --- 17 09 02 15.1 246.8 4.2 42.6 120 F 1 772 13 33 24 13 36 45 BLANKSKY 17 09 43 23.4 265.4 4.6 48.4 18 1 1 772 13 36 15 13 38 44 --- 17 11 43 23.0 265.8 4.7 48.4 120 F 1 777 13 36 33 13 38 50 3C274 17 11 49 22.9 265.7 4.7 48.4 0 1 1 777 13 38 44 13 43 49 --- 17 16 49 22.0 266.5 4.8 48.4 299 F 1 787 13 38 44 13 43 49 M84 17 16 49 21.2 267.9 4.9 48.6 -7 1 1 787 13 43 49 13 44 29 --- 17 17 29 21.1 268.1 4.9 48.6 32 F 1 788 13 43 49 13 44 29 3C274 17 17 29 21.8 266.7 4.8 48.4 -7 1 1 788 13 44 29 13 44 59 --- 17 17 59 21.7 266.8 4.8 48.4 23 F 1 789 13 44 29 13 44 59 M84 17 17 59 21.0 268.1 4.9 48.6 -7 1 1 789 13 44 59 13 45 39 --- 17 18 39 20.9 268.3 4.9 48.6 32 F 1 790 13 44 59 13 45 39 3C274 17 18 39 21.6 266.9 4.8 48.4 -7 1 1 790 13 45 39 13 46 09 --- 17 19 09 21.5 267.0 4.8 48.5 23 F 1 791 13 45 39 13 46 09 M84 17 19 09 20.8 268.4 4.9 48.6 -7 1 1 791 13 46 09 13 46 49 --- 17 19 49 20.7 268.5 4.9 48.6 32 F 1 792 13 46 09 13 46 49 3C274 17 19 49 21.4 267.1 4.8 48.5 -7 1 1 792 13 46 49 13 47 19 --- 17 20 19 21.3 267.2 4.8 48.5 23 F 1 793 13 46 49 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 ---------------------------------------------------------------------------------------- --- Sat 26 Jan 2008 Day 26 --- 13 47 19 M84 17 20 19 20.6 268.6 4.9 48.6 -7 1 1 793 13 47 19 13 47 59 --- 17 20 59 20.5 268.7 4.9 48.7 32 F 1 795 13 47 19 13 48 07 3C274 17 21 08 21.2 267.3 4.8 48.5 1 1 1 795 13 47 59 13 53 07 --- 17 26 08 20.3 268.2 4.9 48.5 299 F 1 805 13 47 59 13 55 06 3C274 17 28 08 19.9 268.5 4.9 48.5 113 1 1 805 13 54 36 14 15 03 --- 17 48 08 16.2 271.9 5.3 48.5 1197 F 1 844 13 54 54 14 18 31 3C274 17 51 37 15.6 272.5 5.3 48.5 201 1 1 844 14 18 01 14 38 28 --- 18 11 37 11.9 275.8 5.7 48.2 1197 F 1 884 14 18 19 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 15.222784 0.00 12 50 01.74793 * 12 33 28.04383 12 30 34.13363 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 18.765957 0.21 0851+202 20 17 58.41741 * 20 06 30.64086 20 04 35.81618 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 29.632220 0.32 * M84 13 09 49.76862 * 12 53 13.13923 12 50 18.86508 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 15.225392 0.31 1228+126 12 40 01.74901 * 12 23 28.04383 12 20 34.18272 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 37.256080 0.20 1253-055 -05 31 07.99586 *-05 47 21.52472 -05 50 06.97088 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 122.5 OJ287 174.6 M84 124.0 3C274 122.5 3C279 110.6 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