COVER INFORMATION Station: VLBA_HN (Code Hn ) Experiment: bw088 M87 movie. Walker, Ly, Junor, Hardee Exp. Code: bw088u 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 21 Jan 2008 Day 21 --- 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 42 24 OJ287 09 54 32 64.0 213.2 1.0 25.2 0 1 1 0 06 41 54 06 44 24 --- 09 56 32 63.8 214.1 1.0 25.9 120 F 1 5 06 42 12 06 46 27 3C274 09 58 36 45.1 121.3 -2.5 -39.8 56 1 1 5 06 45 57 07 06 24 --- 10 18 36 48.1 126.8 -2.2 -36.9 1197 F 1 44 06 46 15 07 08 30 OJ287 10 20 41 61.0 224.8 1.4 33.3 54 1 1 44 07 08 00 07 10 29 --- 10 22 41 60.7 225.6 1.5 33.8 120 F 1 49 07 08 18 07 12 35 3C274 10 24 48 49.0 128.7 -2.1 -35.8 55 1 1 49 07 12 05 07 32 32 --- 10 44 48 51.7 135.1 -1.8 -32.0 1197 F 1 89 07 12 23 07 33 16 3C279 10 45 32 32.9 140.1 -2.2 -28.2 0 1 1 89 07 32 46 07 35 15 --- 10 47 32 33.1 140.6 -2.2 -27.8 120 F 1 94 07 33 04 07 35 59 3C274 10 48 16 52.2 136.2 -1.7 -31.2 0 1 1 94 07 35 29 07 55 56 --- 11 08 16 54.5 143.4 -1.4 -26.6 1197 F 1 133 07 35 47 07 57 55 OJ287 11 10 15 53.7 241.7 2.2 43.3 47 1 1 133 07 57 25 07 59 55 --- 11 12 15 53.4 242.3 2.3 43.6 120 F 1 138 07 57 43 08 01 52 3C274 11 14 12 55.2 145.7 -1.3 -25.0 47 1 1 138 08 01 22 08 06 51 --- 11 19 12 55.7 147.6 -1.2 -23.7 299 F 1 149 08 01 40 08 06 51 M84 11 19 12 56.7 149.6 -1.1 -22.3 -8 1 1 149 08 06 51 08 07 31 --- 11 19 52 56.7 149.9 -1.1 -22.1 32 F 1 150 08 06 51 08 07 31 3C274 11 19 52 55.7 147.9 -1.2 -23.5 -8 1 1 150 08 07 31 08 08 01 --- 11 20 22 55.8 148.1 -1.2 -23.3 22 F 1 151 08 07 31 08 08 01 M84 11 20 22 56.8 150.1 -1.1 -22.0 -8 1 1 151 08 08 01 08 08 41 --- 11 21 02 56.8 150.3 -1.1 -21.8 32 F 1 152 08 08 01 08 08 41 3C274 11 21 02 55.8 148.3 -1.2 -23.2 -8 1 1 152 08 08 41 08 09 11 --- 11 21 32 55.9 148.5 -1.2 -23.0 22 F 1 153 08 08 41 08 09 11 M84 11 21 32 56.9 150.6 -1.1 -21.7 -8 1 1 153 08 09 11 08 09 50 --- 11 22 12 56.9 150.8 -1.1 -21.5 32 F 1 154 08 09 11 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 21 Jan 2008 Day 21 --- 08 09 50 3C274 11 22 12 56.0 148.8 -1.2 -22.8 -8 1 1 154 08 09 50 08 10 20 --- 11 22 42 56.0 149.0 -1.1 -22.7 22 F 1 155 08 09 50 08 10 20 M84 11 22 42 57.0 151.0 -1.0 -21.3 -8 1 1 155 08 10 20 08 11 00 --- 11 23 22 57.0 151.3 -1.0 -21.1 32 F 1 157 08 10 20 08 11 09 3C274 11 23 31 56.1 149.3 -1.1 -22.5 1 1 1 157 08 11 00 08 16 08 --- 11 28 31 56.5 151.4 -1.0 -21.0 299 F 1 167 08 11 00 08 18 08 3C279 11 30 31 37.5 152.6 -1.4 -19.8 76 1 1 167 08 17 38 08 20 08 --- 11 32 31 37.6 153.2 -1.4 -19.4 120 F 1 171 08 17 56 08 20 52 3C274 11 33 16 56.9 153.4 -1.0 -19.6 0 1 1 171 08 20 22 08 40 49 --- 11 53 16 58.3 162.1 -0.6 -13.3 1197 F 1 211 08 20 40 08 42 22 OJ287 11 54 49 46.1 253.0 3.0 48.2 26 1 1 211 08 41 52 08 44 22 --- 11 56 49 45.8 253.5 3.0 48.4 120 F 1 216 08 42 10 08 45 56 3C274 11 58 24 58.6 164.5 -0.5 -11.6 29 1 1 216 08 45 26 09 05 53 --- 12 18 24 59.3 173.8 -0.2 -4.6 1197 F 1 255 08 45 44 09 06 37 3C279 12 19 08 40.5 167.7 -0.6 -9.0 0 1 1 255 09 06 07 09 08 37 --- 12 21 08 40.6 168.3 -0.6 -8.5 120 F 1 260 09 06 25 09 09 21 3C274 12 21 53 59.3 175.5 -0.2 -3.4 1 1 1 260 09 08 51 09 29 18 --- 12 41 53 59.3 185.1 0.2 3.8 1197 F 1 300 09 09 09 09 31 03 OJ287 12 43 38 37.4 263.0 3.8 50.7 47 1 1 300 09 30 33 09 33 02 --- 12 45 38 37.0 263.4 3.8 50.7 120 F 1 305 09 30 51 09 34 52 3C274 12 47 28 59.2 187.8 0.3 5.8 53 1 1 305 09 34 22 09 54 49 --- 13 07 28 58.4 197.1 0.6 12.7 1197 F 1 344 09 34 40 09 55 33 3C279 13 08 12 41.2 183.8 0.2 2.8 4 1 1 344 09 55 03 09 57 33 --- 13 10 12 41.1 184.5 0.2 3.3 120 F 1 349 09 55 21 09 58 17 3C274 13 10 57 58.2 198.6 0.7 13.9 4 1 1 349 09 57 47 10 03 16 --- 13 15 57 57.9 200.9 0.7 15.5 299 F 1 360 09 58 05 10 03 16 M84 13 15 57 58.0 203.7 0.8 17.6 -8 1 1 360 10 03 16 10 03 56 --- 13 16 37 57.9 204.0 0.9 17.8 32 F 1 361 10 03 16 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 21 Jan 2008 Day 21 --- 10 03 56 3C274 13 16 37 57.9 201.2 0.8 15.7 -8 1 1 361 10 03 56 10 04 26 --- 13 17 07 57.8 201.4 0.8 15.9 22 F 1 362 10 03 56 10 04 26 M84 13 17 07 57.9 204.2 0.9 17.9 -8 1 1 362 10 04 26 10 05 06 --- 13 17 47 57.9 204.5 0.9 18.1 32 F 1 363 10 04 26 10 05 06 3C274 13 17 47 57.8 201.7 0.8 16.1 -8 1 1 363 10 05 06 10 05 36 --- 13 18 17 57.8 201.9 0.8 16.2 22 F 1 364 10 05 06 10 05 36 M84 13 18 17 57.8 204.7 0.9 18.3 -8 1 1 364 10 05 36 10 06 16 --- 13 18 57 57.8 205.0 0.9 18.5 32 F 1 365 10 05 36 10 06 16 3C274 13 18 57 57.7 202.2 0.8 16.5 -8 1 1 365 10 06 16 10 06 46 --- 13 19 27 57.7 202.4 0.8 16.6 22 F 1 366 10 06 16 10 06 46 M84 13 19 27 57.7 205.2 0.9 18.7 -8 1 1 366 10 06 46 10 07 25 --- 13 20 07 57.7 205.5 0.9 18.9 32 F 1 368 10 06 46 10 07 34 3C274 13 20 16 57.6 202.8 0.8 16.9 1 1 1 368 10 07 25 10 12 34 --- 13 25 16 57.3 204.9 0.9 18.4 299 F 1 378 10 07 25 10 14 33 BLANKSKY 13 27 16 57.3 205.9 0.9 19.1 113 1 1 378 10 14 03 10 16 33 --- 13 29 16 57.1 206.7 1.0 19.7 120 F 1 382 10 14 21 10 18 24 OJ287 13 31 07 28.7 271.4 4.6 51.2 48 1 1 382 10 17 54 10 20 24 --- 13 33 07 28.4 271.7 4.6 51.2 120 F 1 387 10 18 12 10 22 13 3C274 13 34 57 56.4 209.0 1.1 21.3 47 1 1 387 10 21 43 10 42 10 --- 13 54 57 54.5 216.9 1.4 26.7 1197 F 1 427 10 22 01 10 42 54 3C279 13 55 41 39.4 199.2 1.0 14.0 8 1 1 427 10 42 24 10 44 54 --- 13 57 41 39.3 199.8 1.0 14.4 120 F 1 432 10 42 42 10 45 38 3C274 13 58 26 54.1 218.2 1.5 27.6 9 1 1 432 10 45 08 11 05 35 --- 14 18 26 51.6 225.2 1.8 32.1 1197 F 1 471 10 45 26 11 07 26 OJ287 14 20 17 19.8 279.4 5.4 50.3 42 1 1 471 11 06 56 11 09 26 --- 14 22 17 19.4 279.7 5.4 50.2 120 F 1 476 11 07 14 11 11 16 3C274 14 24 07 50.9 227.1 1.9 33.3 41 1 1 476 11 10 46 11 31 12 --- 14 44 07 48.1 233.2 2.2 36.9 1197 F 1 516 11 11 04 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 21 Jan 2008 Day 21 --- 11 31 57 3C279 14 44 52 35.4 213.7 1.8 24.1 13 1 1 516 11 31 27 11 33 56 --- 14 46 52 35.2 214.3 1.8 24.5 120 F 1 520 11 31 45 11 34 41 3C274 14 47 36 47.6 234.2 2.3 37.4 14 1 1 520 11 34 11 11 54 38 --- 15 07 36 44.5 239.7 2.6 40.3 1197 F 1 560 11 34 29 11 56 43 OJ287 15 09 43 11.0 287.3 6.2 48.1 53 1 1 560 11 56 13 11 58 43 --- 15 11 43 10.6 287.6 6.3 48.0 120 F 1 565 11 56 31 12 00 49 3C274 15 13 49 43.5 241.3 2.7 41.1 54 1 1 565 12 00 19 12 05 48 --- 15 18 49 42.7 242.6 2.8 41.7 299 F 1 575 12 00 37 12 05 48 M84 15 18 49 42.1 244.4 2.9 42.6 -7 1 1 575 12 05 48 12 06 28 --- 15 19 29 42.0 244.6 2.9 42.7 33 F 1 577 12 05 48 12 06 28 3C274 15 19 29 42.6 242.7 2.8 41.8 -7 1 1 577 12 06 28 12 06 58 --- 15 19 59 42.5 242.8 2.8 41.8 23 F 1 578 12 06 28 12 06 58 M84 15 19 59 41.9 244.7 2.9 42.8 -7 1 1 578 12 06 58 12 07 38 --- 15 20 39 41.8 244.9 2.9 42.8 33 F 1 579 12 06 58 12 07 38 3C274 15 20 39 42.4 243.0 2.8 41.9 -7 1 1 579 12 07 38 12 08 08 --- 15 21 09 42.3 243.1 2.8 42.0 23 F 1 580 12 07 38 12 08 08 M84 15 21 09 41.7 245.0 2.9 42.9 -7 1 1 580 12 08 08 12 08 48 --- 15 21 49 41.6 245.1 2.9 42.9 33 F 1 581 12 08 08 12 08 48 3C274 15 21 49 42.2 243.3 2.8 42.0 -7 1 1 581 12 08 48 12 09 18 --- 15 22 19 42.1 243.4 2.9 42.1 23 F 1 582 12 08 48 12 09 18 M84 15 22 19 41.5 245.3 2.9 43.0 -7 1 1 582 12 09 18 12 09 58 --- 15 22 59 41.4 245.4 3.0 43.1 33 F 1 584 12 09 18 12 10 07 3C274 15 23 08 42.0 243.6 2.9 42.2 2 1 1 584 12 09 58 12 15 06 --- 15 28 08 41.2 244.8 2.9 42.7 299 F 1 593 12 09 58 12 15 49 3C279 15 28 52 30.3 225.3 2.5 31.5 16 1 1 593 12 15 19 12 17 49 --- 15 30 52 30.0 225.7 2.6 31.8 120 F 1 598 12 15 37 12 18 33 3C274 15 31 35 40.6 245.6 3.0 43.1 16 1 1 598 12 18 03 12 38 29 --- 15 51 35 37.2 250.2 3.3 44.8 1197 F 1 638 12 18 21 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 21 Jan 2008 Day 21 --- 12 46 35 3C274 15 59 43 35.8 251.9 3.5 45.4 477 1 1 638 12 46 05 13 06 32 --- 16 19 43 32.3 256.0 3.8 46.6 1197 F 1 677 12 46 23 13 07 13 3C279 16 20 23 22.9 237.0 3.4 38.1 16 1 1 677 13 06 43 13 09 12 --- 16 22 23 22.6 237.4 3.4 38.3 120 F 1 682 13 07 01 13 09 53 3C274 16 23 04 31.7 256.6 3.9 46.8 16 1 1 682 13 09 23 13 29 50 --- 16 43 04 28.1 260.5 4.2 47.7 1197 F 1 722 13 09 41 13 30 29 3C279 16 43 43 19.3 241.8 3.8 40.4 15 1 1 722 13 29 50 13 32 28 --- 16 45 43 18.9 242.2 3.8 40.6 120 F 1 727 13 29 50 13 33 07 3C274 16 46 22 27.5 261.1 4.3 47.8 16 1 1 727 13 32 28 13 53 04 --- 17 06 22 23.9 264.7 4.6 48.3 1197 F 1 767 13 32 28 13 53 44 3C279 17 07 02 15.4 246.4 4.2 42.4 17 1 1 767 13 53 04 13 55 43 --- 17 09 02 15.1 246.8 4.2 42.6 120 F 1 772 13 53 04 13 56 24 BLANKSKY 17 09 43 23.4 265.4 4.6 48.4 18 1 1 772 13 55 54 13 58 24 --- 17 11 43 23.0 265.8 4.7 48.4 120 F 1 777 13 56 12 13 58 30 3C274 17 11 49 22.9 265.7 4.7 48.4 0 1 1 777 13 58 24 14 03 29 --- 17 16 49 22.0 266.5 4.8 48.4 299 F 1 787 13 58 24 14 03 29 M84 17 16 49 21.2 267.9 4.9 48.6 -7 1 1 787 14 03 29 14 04 09 --- 17 17 29 21.1 268.1 4.9 48.6 32 F 1 788 14 03 29 14 04 09 3C274 17 17 29 21.8 266.7 4.8 48.4 -7 1 1 788 14 04 09 14 04 39 --- 17 17 59 21.7 266.8 4.8 48.4 23 F 1 789 14 04 09 14 04 39 M84 17 17 59 21.0 268.2 4.9 48.6 -7 1 1 789 14 04 39 14 05 19 --- 17 18 39 20.9 268.3 4.9 48.6 32 F 1 790 14 04 39 14 05 19 3C274 17 18 39 21.6 266.9 4.8 48.4 -7 1 1 790 14 05 19 14 05 48 --- 17 19 09 21.5 267.0 4.8 48.5 23 F 1 791 14 05 19 14 05 48 M84 17 19 09 20.8 268.4 4.9 48.6 -7 1 1 791 14 05 48 14 06 28 --- 17 19 49 20.7 268.5 4.9 48.6 32 F 1 792 14 05 48 14 06 28 3C274 17 19 49 21.4 267.1 4.8 48.5 -7 1 1 792 14 06 28 14 06 58 --- 17 20 19 21.3 267.2 4.8 48.5 23 F 1 793 14 06 28 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 21 Jan 2008 Day 21 --- 14 06 58 M84 17 20 19 20.6 268.6 4.9 48.6 -7 1 1 793 14 06 58 14 07 38 --- 17 20 59 20.5 268.7 4.9 48.7 32 F 1 795 14 06 58 14 07 47 3C274 17 21 08 21.2 267.3 4.8 48.5 1 1 1 795 14 07 38 14 12 46 --- 17 26 08 20.3 268.2 4.9 48.5 299 F 1 805 14 07 38 14 14 46 3C274 17 28 08 19.9 268.5 4.9 48.5 113 1 1 805 14 14 16 14 34 43 --- 17 48 08 16.2 271.9 5.3 48.5 1197 F 1 844 14 14 34 14 38 11 3C274 17 51 37 15.6 272.5 5.3 48.5 201 1 1 844 14 37 41 14 58 08 --- 18 11 37 11.9 275.8 5.7 48.2 1197 F 1 884 14 37 59 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 15.066458 0.00 12 50 01.74793 * 12 33 28.04383 12 30 34.91060 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 18.687875 0.21 0851+202 20 17 58.41741 * 20 06 30.64086 20 04 35.81993 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 29.476911 0.32 * M84 13 09 49.76862 * 12 53 13.13923 12 50 19.62233 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 15.069180 0.31 1228+126 12 40 01.74901 * 12 23 28.04383 12 20 34.96230 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 37.101400 0.20 1253-055 -05 31 07.99586 *-05 47 21.52472 -05 50 05.92537 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 117.7 OJ287 169.8 M84 119.1 3C274 117.6 3C279 105.5 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