COVER INFORMATION Station: VLBA_HN (Code Hn ) Experiment: bw088 M87 movie. Walker, Ly, Junor, Hardee Exp. Code: bw088r 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 ---------------------------------------------------------------------------------------- --- Mon 10 Dec 2007 Day 344 --- 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 09 27 33 OJ287 09 54 32 64.0 213.2 1.0 25.3 0 1 1 0 09 27 03 09 29 32 --- 09 56 32 63.8 214.1 1.0 25.9 120 F 1 5 09 27 21 09 31 36 3C274 09 58 36 45.1 121.3 -2.5 -39.8 56 1 1 5 09 31 06 09 51 32 --- 10 18 36 48.1 126.9 -2.2 -36.8 1197 F 1 44 09 31 24 09 53 38 OJ287 10 20 41 61.0 224.8 1.4 33.3 54 1 1 44 09 53 08 09 55 37 --- 10 22 41 60.7 225.6 1.5 33.8 120 F 1 49 09 53 26 09 57 44 3C274 10 24 48 49.0 128.7 -2.1 -35.8 55 1 1 49 09 57 14 10 17 40 --- 10 44 48 51.7 135.1 -1.8 -32.0 1197 F 1 89 09 57 32 10 18 24 3C279 10 45 32 32.9 140.1 -2.2 -28.2 0 1 1 89 10 17 54 10 20 24 --- 10 47 32 33.1 140.6 -2.2 -27.8 120 F 1 94 10 18 12 10 21 08 3C274 10 48 16 52.2 136.2 -1.7 -31.2 0 1 1 94 10 20 38 10 41 04 --- 11 08 16 54.5 143.4 -1.4 -26.5 1197 F 1 133 10 20 56 10 43 03 OJ287 11 10 15 53.7 241.7 2.2 43.4 47 1 1 133 10 42 33 10 45 03 --- 11 12 15 53.4 242.3 2.3 43.6 120 F 1 138 10 42 51 10 47 00 3C274 11 14 12 55.2 145.7 -1.3 -25.0 47 1 1 138 10 46 30 10 51 59 --- 11 19 12 55.7 147.6 -1.2 -23.7 299 F 1 149 10 46 48 10 51 59 M84 11 19 12 56.7 149.6 -1.1 -22.3 -8 1 1 149 10 51 59 10 52 39 --- 11 19 52 56.7 149.9 -1.1 -22.1 32 F 1 150 10 51 59 10 52 39 3C274 11 19 52 55.7 147.9 -1.2 -23.5 -8 1 1 150 10 52 39 10 53 09 --- 11 20 22 55.8 148.1 -1.2 -23.3 22 F 1 151 10 52 39 10 53 09 M84 11 20 22 56.8 150.1 -1.1 -22.0 -8 1 1 151 10 53 09 10 53 49 --- 11 21 02 56.8 150.4 -1.1 -21.8 32 F 1 152 10 53 09 10 53 49 3C274 11 21 02 55.8 148.4 -1.2 -23.2 -8 1 1 152 10 53 49 10 54 19 --- 11 21 32 55.9 148.6 -1.2 -23.0 22 F 1 153 10 53 49 10 54 19 M84 11 21 32 56.9 150.6 -1.1 -21.7 -8 1 1 153 10 54 19 10 54 59 --- 11 22 12 57.0 150.8 -1.1 -21.5 32 F 1 154 10 54 19 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 ---------------------------------------------------------------------------------------- --- Mon 10 Dec 2007 Day 344 --- 10 54 59 3C274 11 22 12 56.0 148.8 -1.2 -22.8 -8 1 1 154 10 54 59 10 55 29 --- 11 22 42 56.0 149.0 -1.1 -22.7 22 F 1 155 10 54 59 10 55 29 M84 11 22 42 57.0 151.0 -1.0 -21.3 -8 1 1 155 10 55 29 10 56 08 --- 11 23 22 57.1 151.3 -1.0 -21.1 32 F 1 157 10 55 29 10 56 17 3C274 11 23 31 56.1 149.4 -1.1 -22.5 1 1 1 157 10 56 08 11 01 17 --- 11 28 31 56.5 151.4 -1.0 -21.0 299 F 1 167 10 56 08 11 03 16 3C279 11 30 31 37.5 152.6 -1.4 -19.8 76 1 1 167 11 02 46 11 05 16 --- 11 32 31 37.6 153.2 -1.4 -19.4 120 F 1 171 11 03 04 11 06 00 3C274 11 33 16 56.9 153.4 -1.0 -19.6 0 1 1 171 11 05 30 11 25 57 --- 11 53 16 58.3 162.1 -0.6 -13.3 1197 F 1 211 11 05 48 11 27 30 OJ287 11 54 49 46.1 253.1 3.0 48.2 26 1 1 211 11 27 00 11 29 30 --- 11 56 49 45.8 253.5 3.0 48.4 120 F 1 216 11 27 18 11 31 05 3C274 11 58 24 58.6 164.5 -0.5 -11.6 29 1 1 216 11 30 35 11 51 01 --- 12 18 24 59.3 173.9 -0.2 -4.6 1197 F 1 255 11 30 53 11 51 45 3C279 12 19 08 40.5 167.7 -0.6 -9.0 0 1 1 255 11 51 15 11 53 45 --- 12 21 08 40.6 168.4 -0.6 -8.5 120 F 1 260 11 51 33 11 54 29 3C274 12 21 53 59.3 175.5 -0.2 -3.4 1 1 1 260 11 53 59 12 14 26 --- 12 41 53 59.3 185.1 0.2 3.8 1197 F 1 300 11 54 17 12 16 11 OJ287 12 43 38 37.4 263.0 3.8 50.7 47 1 1 300 12 15 41 12 18 11 --- 12 45 38 37.0 263.4 3.8 50.7 120 F 1 305 12 15 59 12 20 00 3C274 12 47 28 59.2 187.8 0.3 5.8 53 1 1 305 12 19 30 12 39 57 --- 13 07 28 58.4 197.1 0.6 12.7 1197 F 1 344 12 19 48 12 40 41 3C279 13 08 12 41.2 183.8 0.2 2.8 4 1 1 344 12 40 11 12 42 41 --- 13 10 12 41.1 184.5 0.2 3.3 120 F 1 349 12 40 29 12 43 25 3C274 13 10 57 58.2 198.7 0.7 13.9 4 1 1 349 12 42 55 12 48 24 --- 13 15 57 57.9 200.9 0.7 15.5 299 F 1 360 12 43 13 12 48 24 M84 13 15 57 58.0 203.7 0.8 17.6 -8 1 1 360 12 48 24 12 49 04 --- 13 16 37 57.9 204.0 0.9 17.8 32 F 1 361 12 48 24 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 ---------------------------------------------------------------------------------------- --- Mon 10 Dec 2007 Day 344 --- 12 49 04 3C274 13 16 37 57.9 201.2 0.8 15.7 -8 1 1 361 12 49 04 12 49 34 --- 13 17 07 57.8 201.4 0.8 15.9 22 F 1 362 12 49 04 12 49 34 M84 13 17 07 57.9 204.2 0.9 17.9 -8 1 1 362 12 49 34 12 50 14 --- 13 17 47 57.9 204.5 0.9 18.1 32 F 1 363 12 49 34 12 50 14 3C274 13 17 47 57.8 201.7 0.8 16.1 -8 1 1 363 12 50 14 12 50 44 --- 13 18 17 57.8 201.9 0.8 16.2 22 F 1 364 12 50 14 12 50 44 M84 13 18 17 57.8 204.7 0.9 18.3 -8 1 1 364 12 50 44 12 51 24 --- 13 18 57 57.8 205.0 0.9 18.5 32 F 1 365 12 50 44 12 51 24 3C274 13 18 57 57.7 202.2 0.8 16.5 -8 1 1 365 12 51 24 12 51 54 --- 13 19 27 57.7 202.4 0.8 16.6 22 F 1 366 12 51 24 12 51 54 M84 13 19 27 57.7 205.2 0.9 18.7 -8 1 1 366 12 51 54 12 52 34 --- 13 20 07 57.7 205.5 0.9 18.9 32 F 1 368 12 51 54 12 52 43 3C274 13 20 16 57.6 202.8 0.8 16.9 1 1 1 368 12 52 34 12 57 42 --- 13 25 16 57.3 205.0 0.9 18.4 299 F 1 378 12 52 34 12 59 41 BLANKSKY 13 27 16 57.3 205.9 0.9 19.1 113 1 1 378 12 59 11 13 01 41 --- 13 29 16 57.1 206.8 1.0 19.7 120 F 1 382 12 59 29 13 03 32 OJ287 13 31 07 28.7 271.4 4.6 51.2 48 1 1 382 13 03 02 13 05 32 --- 13 33 07 28.4 271.7 4.6 51.2 120 F 1 387 13 03 20 13 07 22 3C274 13 34 57 56.4 209.0 1.1 21.3 47 1 1 387 13 06 52 13 27 18 --- 13 54 57 54.5 216.9 1.4 26.7 1197 F 1 427 13 07 10 13 28 02 3C279 13 55 41 39.4 199.2 1.0 14.0 8 1 1 427 13 27 32 13 30 02 --- 13 57 41 39.3 199.8 1.0 14.4 120 F 1 432 13 27 50 13 30 47 3C274 13 58 26 54.1 218.2 1.5 27.6 9 1 1 432 13 30 17 13 50 43 --- 14 18 26 51.6 225.2 1.8 32.1 1197 F 1 471 13 30 35 13 52 35 OJ287 14 20 17 19.8 279.4 5.4 50.3 42 1 1 471 13 52 05 13 54 34 --- 14 22 17 19.4 279.7 5.4 50.2 120 F 1 476 13 52 23 13 56 24 3C274 14 24 07 50.9 227.1 1.9 33.3 41 1 1 476 13 55 54 14 16 21 --- 14 44 07 48.1 233.2 2.2 36.9 1197 F 1 516 13 56 12 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 ---------------------------------------------------------------------------------------- --- Mon 10 Dec 2007 Day 344 --- 14 17 05 3C279 14 44 52 35.4 213.7 1.8 24.1 13 1 1 516 14 16 35 14 19 05 --- 14 46 52 35.2 214.3 1.8 24.5 120 F 1 520 14 16 53 14 19 49 3C274 14 47 36 47.6 234.2 2.3 37.5 14 1 1 520 14 19 19 14 39 46 --- 15 07 36 44.5 239.7 2.6 40.3 1197 F 1 560 14 19 37 14 41 52 OJ287 15 09 43 11.0 287.3 6.2 48.1 53 1 1 560 14 41 22 14 43 51 --- 15 11 43 10.6 287.6 6.3 48.0 120 F 1 565 14 41 40 14 45 57 3C274 15 13 49 43.5 241.3 2.7 41.1 54 1 1 565 14 45 27 14 50 57 --- 15 18 49 42.7 242.6 2.8 41.7 299 F 1 575 14 45 45 14 50 57 M84 15 18 49 42.1 244.4 2.9 42.6 -7 1 1 575 14 50 57 14 51 36 --- 15 19 29 42.0 244.6 2.9 42.7 33 F 1 577 14 50 57 14 51 36 3C274 15 19 29 42.6 242.7 2.8 41.8 -7 1 1 577 14 51 36 14 52 06 --- 15 19 59 42.5 242.8 2.8 41.8 23 F 1 578 14 51 36 14 52 06 M84 15 19 59 41.9 244.7 2.9 42.8 -7 1 1 578 14 52 06 14 52 46 --- 15 20 39 41.8 244.9 2.9 42.8 33 F 1 579 14 52 06 14 52 46 3C274 15 20 39 42.4 243.0 2.8 41.9 -7 1 1 579 14 52 46 14 53 16 --- 15 21 09 42.3 243.1 2.8 42.0 23 F 1 580 14 52 46 14 53 16 M84 15 21 09 41.7 245.0 2.9 42.9 -7 1 1 580 14 53 16 14 53 56 --- 15 21 49 41.6 245.1 2.9 42.9 33 F 1 581 14 53 16 14 53 56 3C274 15 21 49 42.2 243.3 2.8 42.0 -7 1 1 581 14 53 56 14 54 26 --- 15 22 19 42.1 243.4 2.9 42.1 23 F 1 582 14 53 56 14 54 26 M84 15 22 19 41.5 245.3 2.9 43.0 -7 1 1 582 14 54 26 14 55 06 --- 15 22 59 41.4 245.4 3.0 43.1 33 F 1 584 14 54 26 14 55 15 3C274 15 23 08 42.0 243.6 2.9 42.2 2 1 1 584 14 55 06 15 00 14 --- 15 28 08 41.2 244.8 2.9 42.7 299 F 1 593 14 55 06 15 00 58 3C279 15 28 52 30.3 225.3 2.5 31.5 16 1 1 593 15 00 28 15 02 57 --- 15 30 52 30.0 225.7 2.6 31.8 120 F 1 598 15 00 46 15 03 41 3C274 15 31 35 40.6 245.6 3.0 43.1 16 1 1 598 15 03 11 15 23 37 --- 15 51 35 37.2 250.2 3.3 44.8 1197 F 1 638 15 03 29 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 ---------------------------------------------------------------------------------------- --- Mon 10 Dec 2007 Day 344 --- 15 31 43 3C274 15 59 43 35.8 251.9 3.5 45.4 477 1 1 638 15 31 13 15 51 40 --- 16 19 43 32.3 256.0 3.8 46.7 1197 F 1 677 15 31 31 15 52 21 3C279 16 20 23 22.9 237.0 3.4 38.1 16 1 1 677 15 51 51 15 54 21 --- 16 22 23 22.6 237.4 3.4 38.3 120 F 1 682 15 52 09 15 55 01 3C274 16 23 04 31.7 256.7 3.9 46.8 16 1 1 682 15 54 31 16 14 58 --- 16 43 04 28.1 260.5 4.2 47.7 1197 F 1 722 15 54 49 16 15 37 3C279 16 43 43 19.3 241.8 3.8 40.5 15 1 1 722 16 14 58 16 17 37 --- 16 45 43 18.9 242.2 3.8 40.6 120 F 1 727 16 14 58 16 18 15 3C274 16 46 22 27.5 261.1 4.3 47.8 16 1 1 727 16 17 37 16 38 12 --- 17 06 22 23.9 264.7 4.6 48.3 1197 F 1 767 16 17 37 16 38 52 3C279 17 07 02 15.4 246.4 4.2 42.4 17 1 1 767 16 38 12 16 40 52 --- 17 09 02 15.1 246.8 4.2 42.6 120 F 1 772 16 38 12 16 41 32 BLANKSKY 17 09 43 23.4 265.4 4.6 48.4 18 1 1 772 16 41 02 16 43 32 --- 17 11 43 23.0 265.8 4.7 48.4 120 F 1 777 16 41 20 16 43 38 3C274 17 11 49 22.9 265.7 4.7 48.4 0 1 1 777 16 43 32 16 48 37 --- 17 16 49 22.0 266.6 4.8 48.4 299 F 1 787 16 43 32 16 48 37 M84 17 16 49 21.2 268.0 4.9 48.6 -7 1 1 787 16 48 37 16 49 17 --- 17 17 29 21.1 268.1 4.9 48.6 32 F 1 788 16 48 37 16 49 17 3C274 17 17 29 21.8 266.7 4.8 48.4 -7 1 1 788 16 49 17 16 49 47 --- 17 17 59 21.7 266.8 4.8 48.4 23 F 1 789 16 49 17 16 49 47 M84 17 17 59 21.0 268.2 4.9 48.6 -7 1 1 789 16 49 47 16 50 27 --- 17 18 39 20.9 268.3 4.9 48.6 32 F 1 790 16 49 47 16 50 27 3C274 17 18 39 21.6 266.9 4.8 48.4 -7 1 1 790 16 50 27 16 50 57 --- 17 19 09 21.5 267.0 4.8 48.5 23 F 1 791 16 50 27 16 50 57 M84 17 19 09 20.8 268.4 4.9 48.6 -7 1 1 791 16 50 57 16 51 37 --- 17 19 49 20.7 268.5 4.9 48.6 32 F 1 792 16 50 57 16 51 37 3C274 17 19 49 21.4 267.1 4.8 48.5 -7 1 1 792 16 51 37 16 52 06 --- 17 20 19 21.3 267.2 4.8 48.5 23 F 1 793 16 51 37 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 ---------------------------------------------------------------------------------------- --- Mon 10 Dec 2007 Day 344 --- 16 52 06 M84 17 20 19 20.6 268.6 4.9 48.6 -7 1 1 793 16 52 06 16 52 46 --- 17 20 59 20.5 268.7 4.9 48.7 32 F 1 795 16 52 06 16 52 55 3C274 17 21 08 21.2 267.3 4.8 48.5 1 1 1 795 16 52 46 16 57 54 --- 17 26 08 20.2 268.2 4.9 48.5 299 F 1 805 16 52 46 16 59 54 3C274 17 28 08 19.9 268.5 4.9 48.5 113 1 1 805 16 59 24 17 19 51 --- 17 48 08 16.2 271.9 5.3 48.5 1197 F 1 844 16 59 42 17 23 19 3C274 17 51 37 15.6 272.5 5.3 48.5 201 1 1 844 17 22 49 17 43 16 --- 18 11 37 11.9 275.8 5.7 48.2 1197 F 1 884 17 23 07 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 /users/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 13.622642 0.00 12 50 01.74793 * 12 33 28.04383 12 30 43.82803 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 17.574480 0.21 0851+202 20 17 58.41741 * 20 06 30.64086 20 04 39.66209 0.40 J0854+20 /users/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 28.032031 0.32 * M84 13 09 49.76862 * 12 53 13.13923 12 50 28.46124 0.31 /users/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 13.625886 0.31 1228+126 12 40 01.74901 * 12 23 28.04383 12 20 43.88498 0.20 * 3C274 /users/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 35.665711 0.20 1253-055 -05 31 07.99586 *-05 47 21.52472 -05 49 56.93767 0.30 * 3C279 /users/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 76.5 OJ287 127.5 M84 77.9 3C274 76.4 3C279 62.9 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