COVER INFORMATION Station: VLBA_MK (Code Mk ) Experiment: bw090 M87 fast movie. Walker, Ly, Junor, Hardee Exp. Code: bw090d 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_MK (Code Mk ) 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 ---------------------------------------------------------------------------------------- --- Sun 10 Feb 2008 Day 41 --- 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 23 46 OJ287 04 20 39 26.0 76.7 -4.6 -77.1 0 1 1 0 05 23 16 05 25 46 --- 04 22 39 26.4 76.8 -4.5 -77.2 120 F 1 5 05 23 34 05 49 51 OJ287 04 46 49 32.0 78.1 -4.1 -78.6 1429 1 1 5 05 49 21 05 51 51 --- 04 48 49 32.4 78.3 -4.1 -78.7 120 F 1 10 05 49 39 06 39 17 OJ287 05 36 22 43.4 80.7 -3.3 -81.3 2818 1 1 10 06 38 47 06 41 17 --- 05 38 22 43.9 80.8 -3.3 -81.4 120 F 1 14 06 39 05 07 23 44 OJ287 06 20 57 53.8 82.8 -2.6 -83.6 2522 1 1 14 07 23 14 07 25 44 --- 06 22 57 54.3 82.9 -2.5 -83.7 120 F 1 19 07 23 32 08 12 25 OJ287 07 09 45 65.2 84.8 -1.8 -86.1 2773 1 1 19 08 11 55 08 14 24 --- 07 11 45 65.7 84.9 -1.7 -86.2 120 F 1 24 08 12 13 08 16 14 3C274 07 13 35 14.0 81.7 -5.3 -72.4 0 1 1 24 08 15 44 08 36 10 --- 07 33 35 18.6 83.2 -5.0 -73.0 1197 F 1 64 08 16 02 08 39 39 3C274 07 37 04 19.4 83.5 -4.9 -73.1 201 1 1 64 08 39 09 08 44 38 --- 07 42 04 20.6 83.8 -4.8 -73.2 299 F 1 74 08 39 27 08 44 38 M84 07 42 04 22.1 83.8 -4.7 -73.6 -9 1 1 74 08 44 38 08 45 18 --- 07 42 44 22.2 83.8 -4.7 -73.6 31 F 1 76 08 44 38 08 45 18 3C274 07 42 44 20.8 83.9 -4.8 -73.3 -9 1 1 76 08 45 18 08 45 48 --- 07 43 14 20.9 83.9 -4.8 -73.3 21 F 1 77 08 45 18 08 45 48 M84 07 43 14 22.4 83.8 -4.7 -73.6 -9 1 1 77 08 45 48 08 46 28 --- 07 43 54 22.5 83.9 -4.7 -73.6 31 F 1 78 08 45 48 08 46 28 3C274 07 43 54 21.0 84.0 -4.8 -73.3 -9 1 1 78 08 46 28 08 46 58 --- 07 44 24 21.1 84.0 -4.8 -73.3 21 F 1 79 08 46 28 08 46 58 M84 07 44 24 22.6 83.9 -4.7 -73.7 -9 1 1 79 08 46 58 08 47 38 --- 07 45 04 22.8 84.0 -4.7 -73.7 31 F 1 80 08 46 58 08 47 38 3C274 07 45 04 21.3 84.1 -4.8 -73.3 -9 1 1 80 08 47 38 08 48 07 --- 07 45 34 21.4 84.1 -4.8 -73.3 21 F 1 81 08 47 38 Schedule for VLBA_MK (Code Mk ) 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 ---------------------------------------------------------------------------------------- --- Sun 10 Feb 2008 Day 41 --- 08 48 07 M84 07 45 34 22.9 84.0 -4.7 -73.7 -9 1 1 81 08 48 07 08 48 47 --- 07 46 14 23.1 84.1 -4.7 -73.7 31 F 1 82 08 48 07 08 48 56 3C274 07 46 23 21.6 84.2 -4.7 -73.4 0 1 1 82 08 48 47 08 53 55 --- 07 51 23 22.8 84.5 -4.7 -73.5 299 F 1 92 08 48 47 08 55 55 BLANKSKY 07 53 23 23.3 84.5 -4.6 -73.6 113 1 1 92 08 55 25 08 57 55 --- 07 55 23 23.8 84.7 -4.6 -73.7 120 F 1 97 08 55 43 08 59 46 OJ287 07 57 15 76.4 86.4 -1.0 -88.7 0 1 1 97 08 59 16 09 01 46 --- 07 59 15 76.8 86.4 -0.9 -88.8 120 F 1 102 08 59 34 09 03 35 3C274 08 01 04 25.1 85.3 -4.5 -73.7 0 1 1 102 09 03 05 09 23 32 --- 08 21 04 29.7 86.8 -4.2 -74.1 1197 F 1 142 09 03 23 09 24 16 3C279 08 21 49 17.8 103.2 -4.6 -67.0 14 1 1 142 09 23 46 09 26 16 --- 08 23 49 18.2 103.4 -4.5 -66.9 120 F 1 146 09 24 04 09 27 00 3C274 08 24 33 30.6 87.1 -4.1 -74.1 14 1 1 146 09 26 30 09 46 57 --- 08 44 33 35.3 88.6 -3.8 -74.3 1197 F 1 186 09 26 48 09 48 48 OJ287 08 46 25 87.9 82.1 -0.1 -97.1 0 1 1 186 09 48 18 09 50 48 --- 08 48 25 88.4 80.1 -0.1 -99.3 120 F 1 191 09 48 36 09 52 37 3C274 08 50 15 36.6 89.1 -3.7 -74.4 0 1 1 191 09 52 07 10 12 34 --- 09 10 15 41.3 90.8 -3.4 -74.4 1197 F 1 230 09 52 25 10 13 18 3C279 09 10 59 28.9 108.8 -3.8 -63.5 14 1 1 230 10 12 48 10 15 18 --- 09 12 59 29.4 109.1 -3.7 -63.4 120 F 1 235 10 13 06 10 16 03 3C274 09 13 44 42.1 91.1 -3.3 -74.4 13 1 1 235 10 15 33 10 35 59 --- 09 33 44 46.8 93.0 -3.0 -74.1 1197 F 1 275 10 15 51 10 38 05 OJ287 09 35 50 80.5 -86.6 0.7 89.9 0 1 1 275 10 37 35 10 40 05 --- 09 37 50 80.0 -86.6 0.7 89.8 120 F 1 280 10 37 53 10 42 11 3C274 09 39 56 48.3 93.6 -2.9 -74.0 0 1 1 280 10 41 41 10 47 10 --- 09 44 56 49.5 94.1 -2.8 -73.9 299 F 1 290 10 41 59 10 47 10 M84 09 44 56 50.9 94.0 -2.7 -74.3 -9 1 1 290 10 47 10 10 47 50 --- 09 45 36 51.1 94.0 -2.7 -74.3 31 F 1 291 10 47 10 Schedule for VLBA_MK (Code Mk ) 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 ---------------------------------------------------------------------------------------- --- Sun 10 Feb 2008 Day 41 --- 10 47 50 3C274 09 45 36 49.6 94.2 -2.8 -73.9 -9 1 1 291 10 47 50 10 48 20 --- 09 46 06 49.7 94.2 -2.8 -73.8 21 F 1 292 10 47 50 10 48 20 M84 09 46 06 51.2 94.1 -2.7 -74.3 -9 1 1 292 10 48 20 10 49 00 --- 09 46 46 51.4 94.1 -2.6 -74.3 31 F 1 294 10 48 20 10 49 00 3C274 09 46 46 49.9 94.3 -2.7 -73.8 -9 1 1 294 10 49 00 10 49 30 --- 09 47 16 50.0 94.3 -2.7 -73.8 21 F 1 295 10 49 00 10 49 30 M84 09 47 16 51.5 94.2 -2.6 -74.2 -9 1 1 295 10 49 30 10 50 10 --- 09 47 56 51.7 94.3 -2.6 -74.2 31 F 1 296 10 49 30 10 50 10 3C274 09 47 56 50.2 94.4 -2.7 -73.8 -9 1 1 296 10 50 10 10 50 40 --- 09 48 26 50.3 94.5 -2.7 -73.8 21 F 1 297 10 50 10 10 50 40 M84 09 48 26 51.8 94.3 -2.6 -74.2 -9 1 1 297 10 50 40 10 51 20 --- 09 49 06 51.9 94.4 -2.6 -74.2 31 F 1 298 10 50 40 10 51 28 3C274 09 49 15 50.5 94.6 -2.7 -73.8 0 1 1 298 10 51 20 10 56 28 --- 09 54 15 51.6 95.1 -2.6 -73.6 299 F 1 308 10 51 20 10 57 11 3C279 09 54 59 38.5 115.1 -3.0 -58.9 11 1 1 308 10 56 41 10 59 11 --- 09 56 59 38.9 115.5 -3.0 -58.6 120 F 1 313 10 56 59 10 59 54 3C274 09 57 43 52.5 95.5 -2.6 -73.5 10 1 1 313 10 59 24 11 19 51 --- 10 17 43 57.1 98.0 -2.2 -72.5 1197 F 1 353 10 59 42 11 21 55 OJ287 10 19 47 70.2 274.4 1.4 87.1 0 1 1 353 11 21 25 11 25 54 --- 10 23 47 69.2 274.6 1.5 86.9 239 F 1 361 11 21 43 11 27 57 3C274 10 25 50 59.0 99.1 -2.1 -72.0 0 1 1 361 11 27 27 11 47 54 --- 10 45 50 63.6 102.4 -1.8 -70.2 1197 F 1 401 11 27 45 11 48 35 3C279 10 46 31 49.0 125.4 -2.2 -50.5 6 1 1 401 11 48 05 11 50 34 --- 10 48 31 49.4 125.9 -2.1 -50.0 120 F 1 406 11 48 23 11 51 15 3C274 10 49 12 64.4 103.0 -1.7 -69.8 4 1 1 406 11 50 45 12 11 11 --- 11 09 12 68.9 107.6 -1.4 -66.6 1197 F 1 445 11 51 03 12 11 51 3C279 11 09 51 53.3 131.6 -1.8 -45.0 2 1 1 445 12 11 11 12 13 50 --- 11 11 51 53.7 132.2 -1.7 -44.5 120 F 1 450 12 11 11 Schedule for VLBA_MK (Code Mk ) 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 ---------------------------------------------------------------------------------------- --- Sun 10 Feb 2008 Day 41 --- 12 14 29 3C274 11 12 30 69.7 108.6 -1.3 -65.9 1 1 1 450 12 13 50 12 34 26 --- 11 32 30 74.0 115.7 -1.0 -60.2 1197 F 1 490 12 13 50 12 35 06 3C279 11 33 10 57.2 139.2 -1.4 -38.2 0 1 1 490 12 34 26 12 37 05 --- 11 35 10 57.5 139.9 -1.4 -37.5 120 F 1 495 12 34 26 12 37 46 BLANKSKY 11 35 50 74.8 116.6 -0.9 -59.5 0 1 1 495 12 37 16 12 39 46 --- 11 37 50 75.3 117.6 -0.9 -58.6 120 F 1 500 12 37 34 12 39 52 3C274 11 37 56 75.2 118.2 -0.9 -58.1 0 1 1 500 12 39 46 12 44 51 --- 11 42 56 76.2 120.9 -0.8 -55.7 299 F 1 510 12 39 46 12 44 51 M84 11 42 56 77.6 122.7 -0.7 -54.3 -9 1 1 510 12 44 51 12 45 31 --- 11 43 36 77.8 123.1 -0.7 -53.9 31 F 1 511 12 44 51 12 45 31 3C274 11 43 36 76.3 121.3 -0.8 -55.4 -9 1 1 511 12 45 31 12 46 01 --- 11 44 06 76.4 121.6 -0.8 -55.1 21 F 1 512 12 45 31 12 46 01 M84 11 44 06 77.9 123.5 -0.7 -53.6 -9 1 1 512 12 46 01 12 46 40 --- 11 44 46 78.0 123.9 -0.7 -53.2 31 F 1 514 12 46 01 12 46 40 3C274 11 44 46 76.6 122.0 -0.8 -54.8 -9 1 1 514 12 46 40 12 47 10 --- 11 45 16 76.7 122.3 -0.8 -54.5 21 F 1 514 12 46 40 12 47 10 M84 11 45 16 78.1 124.3 -0.7 -52.9 -9 1 1 514 12 47 10 12 47 50 --- 11 45 56 78.2 124.8 -0.7 -52.4 31 F 1 516 12 47 10 12 47 50 3C274 11 45 56 76.8 122.7 -0.8 -54.1 -9 1 1 516 12 47 50 12 48 20 --- 11 46 26 76.9 123.0 -0.7 -53.8 21 F 1 517 12 47 50 12 48 20 M84 11 46 26 78.3 125.2 -0.7 -52.1 -9 1 1 517 12 48 20 12 49 00 --- 11 47 06 78.5 125.6 -0.6 -51.6 31 F 1 518 12 48 20 12 49 09 3C274 11 47 15 77.1 123.6 -0.7 -53.4 0 1 1 518 12 49 00 12 54 08 --- 11 52 15 78.0 127.1 -0.7 -50.2 299 F 1 528 12 49 00 12 56 08 3C274 11 54 15 78.4 128.6 -0.6 -48.8 113 1 1 528 12 55 38 13 16 04 --- 12 14 15 81.5 150.7 -0.3 -28.2 1197 F 1 568 12 55 56 13 16 49 3C279 12 14 59 62.4 157.2 -0.7 -21.5 0 1 1 568 13 16 19 13 18 48 --- 12 16 59 62.6 158.2 -0.7 -20.6 120 F 1 572 13 16 37 Schedule for VLBA_MK (Code Mk ) 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 ---------------------------------------------------------------------------------------- --- Sun 10 Feb 2008 Day 41 --- 13 19 33 3C274 12 17 44 81.9 156.0 -0.2 -23.1 0 1 1 572 13 19 03 13 39 30 --- 12 37 44 82.4 192.0 0.1 11.6 1197 F 1 612 13 19 21 13 40 12 3C279 12 38 27 64.0 169.7 -0.3 -9.8 0 1 1 612 13 39 42 13 42 12 --- 12 40 27 64.1 170.8 -0.3 -8.7 120 F 1 617 13 40 00 13 42 54 3C274 12 41 09 82.2 198.0 0.2 17.3 0 1 1 617 13 42 24 14 02 51 --- 13 01 09 79.7 225.0 0.5 42.9 1197 F 1 656 13 42 42 14 03 28 3C279 13 01 46 64.3 183.0 0.1 2.8 0 1 1 656 14 02 51 14 05 27 --- 13 03 46 64.3 184.1 0.1 3.9 120 F 1 661 14 02 51 14 06 03 3C274 13 04 22 79.1 228.1 0.6 45.8 0 1 1 661 14 05 27 14 26 00 --- 13 24 22 75.2 241.7 0.9 58.0 1197 F 1 701 14 05 27 14 26 36 3C279 13 24 58 63.4 195.9 0.5 15.0 0 1 1 701 14 26 00 14 28 36 --- 13 26 58 63.3 197.0 0.5 16.0 120 F 1 706 14 26 00 14 29 13 3C274 13 27 35 74.6 243.2 0.9 59.3 0 1 1 706 14 28 36 14 34 12 --- 13 32 35 73.5 245.4 1.0 61.2 299 F 1 717 14 28 36 14 34 12 M84 13 32 35 72.5 249.1 1.1 64.4 -8 1 1 717 14 34 12 14 34 52 --- 13 33 15 72.3 249.4 1.1 64.6 31 F 1 718 14 34 12 14 34 52 3C274 13 33 15 73.4 245.7 1.0 61.4 -8 1 1 718 14 34 52 14 35 22 --- 13 33 45 73.3 245.9 1.0 61.6 21 F 1 719 14 34 52 14 35 22 M84 13 33 45 72.2 249.5 1.1 64.7 -8 1 1 719 14 35 22 14 36 01 --- 13 34 25 72.1 249.8 1.1 64.9 31 F 1 721 14 35 22 14 36 01 3C274 13 34 25 73.1 246.2 1.1 61.8 -8 1 1 721 14 36 01 14 36 31 --- 13 34 55 73.0 246.4 1.1 61.9 22 F 1 721 14 36 01 14 36 31 M84 13 34 55 72.0 249.9 1.2 65.0 -8 1 1 721 14 36 31 14 37 11 --- 13 35 35 71.8 250.2 1.2 65.2 32 F 1 723 14 36 31 14 37 11 3C274 13 35 35 72.9 246.6 1.1 62.2 -8 1 1 723 14 37 11 14 37 41 --- 13 36 05 72.7 246.8 1.1 62.3 22 F 1 724 14 37 11 14 37 41 M84 13 36 05 71.7 250.3 1.2 65.3 -8 1 1 724 14 37 41 14 38 21 --- 13 36 45 71.6 250.5 1.2 65.5 32 F 1 725 14 37 41 Schedule for VLBA_MK (Code Mk ) 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 ---------------------------------------------------------------------------------------- --- Sun 10 Feb 2008 Day 41 --- 14 38 29 3C274 13 36 54 72.6 247.1 1.1 62.6 0 1 1 725 14 38 21 14 43 29 --- 13 41 54 71.5 248.9 1.2 64.0 299 F 1 735 14 38 21 14 43 33 3C274 13 41 58 71.5 248.9 1.2 64.0 0 1 1 735 14 43 29 15 03 30 --- 14 01 58 67.0 254.5 1.5 68.2 1197 F 1 774 14 43 29 15 04 03 3C279 14 02 31 59.7 214.0 1.1 31.9 0 1 1 774 15 03 30 15 06 02 --- 14 04 31 59.4 214.8 1.1 32.7 120 F 1 779 15 03 30 15 06 35 3C274 14 05 04 66.3 255.2 1.6 68.6 0 1 1 779 15 06 02 15 21 33 --- 14 20 04 62.9 258.2 1.8 70.5 898 F 1 809 15 06 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: 10 Station: VLBA_MK 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: 10 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 15.635454 0.00 12 50 01.74793 * 12 33 28.04383 12 30 32.40645 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 18.904310 0.21 0851+202 20 17 58.41741 * 20 06 30.64086 20 04 35.70829 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 30.040085 0.32 * M84 13 09 49.76862 * 12 53 13.13923 12 50 17.18401 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 15.637854 0.31 1228+126 12 40 01.74901 * 12 23 28.04383 12 20 32.44552 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 37.683191 0.20 1253-055 -05 31 07.99586 *-05 47 21.52472 -05 50 09.70067 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 136.9 OJ287 169.3 M84 138.3 3C274 136.8 3C279 125.8 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