COVER INFORMATION Station: VLBA_MK (Code Mk ) 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_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 ---------------------------------------------------------------------------------------- --- 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 04 20 39 26.0 76.7 -4.6 -77.1 0 1 1 0 05 03 37 05 06 06 --- 04 22 39 26.4 76.8 -4.5 -77.2 120 F 1 5 05 03 55 05 30 12 OJ287 04 46 49 32.0 78.1 -4.1 -78.6 1429 1 1 5 05 29 42 05 32 12 --- 04 48 49 32.4 78.3 -4.1 -78.7 120 F 1 10 05 30 00 06 19 37 OJ287 05 36 22 43.4 80.7 -3.3 -81.3 2818 1 1 10 06 19 07 06 21 37 --- 05 38 22 43.9 80.8 -3.3 -81.4 120 F 1 14 06 19 25 07 04 04 OJ287 06 20 57 53.8 82.8 -2.6 -83.6 2522 1 1 14 07 03 34 07 06 04 --- 06 22 57 54.3 82.9 -2.5 -83.7 120 F 1 19 07 03 52 07 52 45 OJ287 07 09 45 65.2 84.8 -1.8 -86.1 2773 1 1 19 07 52 15 07 54 45 --- 07 11 45 65.7 84.9 -1.7 -86.2 120 F 1 24 07 52 33 07 56 34 3C274 07 13 35 14.0 81.7 -5.3 -72.4 0 1 1 24 07 56 04 08 16 31 --- 07 33 35 18.6 83.2 -5.0 -73.0 1197 F 1 64 07 56 22 08 19 59 3C274 07 37 04 19.4 83.5 -4.9 -73.1 201 1 1 64 08 19 29 08 24 58 --- 07 42 04 20.6 83.8 -4.8 -73.2 299 F 1 74 08 19 47 08 24 58 M84 07 42 04 22.1 83.8 -4.7 -73.6 -9 1 1 74 08 24 58 08 25 38 --- 07 42 44 22.2 83.8 -4.7 -73.6 31 F 1 76 08 24 58 08 25 38 3C274 07 42 44 20.8 83.9 -4.8 -73.3 -9 1 1 76 08 25 38 08 26 08 --- 07 43 14 20.9 83.9 -4.8 -73.3 21 F 1 77 08 25 38 08 26 08 M84 07 43 14 22.4 83.8 -4.7 -73.6 -9 1 1 77 08 26 08 08 26 48 --- 07 43 54 22.5 83.9 -4.7 -73.6 31 F 1 78 08 26 08 08 26 48 3C274 07 43 54 21.0 84.0 -4.8 -73.3 -9 1 1 78 08 26 48 08 27 18 --- 07 44 24 21.1 84.0 -4.8 -73.3 21 F 1 79 08 26 48 08 27 18 M84 07 44 24 22.6 83.9 -4.7 -73.7 -9 1 1 79 08 27 18 08 27 58 --- 07 45 04 22.8 84.0 -4.7 -73.7 31 F 1 80 08 27 18 08 27 58 3C274 07 45 04 21.3 84.1 -4.8 -73.3 -9 1 1 80 08 27 58 08 28 28 --- 07 45 34 21.4 84.1 -4.8 -73.3 21 F 1 81 08 27 58 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 ---------------------------------------------------------------------------------------- --- Fri 15 Feb 2008 Day 46 --- 08 28 28 M84 07 45 34 22.9 84.0 -4.7 -73.7 -9 1 1 81 08 28 28 08 29 08 --- 07 46 14 23.1 84.1 -4.7 -73.7 31 F 1 82 08 28 28 08 29 17 3C274 07 46 23 21.6 84.2 -4.7 -73.4 0 1 1 82 08 29 08 08 34 16 --- 07 51 23 22.8 84.5 -4.7 -73.5 299 F 1 92 08 29 08 08 36 16 BLANKSKY 07 53 23 23.3 84.5 -4.6 -73.6 113 1 1 92 08 35 46 08 38 15 --- 07 55 23 23.8 84.7 -4.6 -73.7 120 F 1 97 08 36 04 08 40 06 OJ287 07 57 15 76.4 86.4 -1.0 -88.7 0 1 1 97 08 39 36 08 42 06 --- 07 59 15 76.8 86.4 -0.9 -88.8 120 F 1 102 08 39 54 08 43 56 3C274 08 01 04 25.1 85.3 -4.5 -73.7 0 1 1 102 08 43 26 09 03 52 --- 08 21 04 29.7 86.8 -4.2 -74.1 1197 F 1 142 08 43 44 09 04 37 3C279 08 21 49 17.8 103.2 -4.6 -67.0 14 1 1 142 09 04 07 09 06 36 --- 08 23 49 18.2 103.4 -4.5 -66.9 120 F 1 146 09 04 25 09 07 21 3C274 08 24 33 30.6 87.1 -4.1 -74.1 14 1 1 146 09 06 51 09 27 17 --- 08 44 33 35.3 88.6 -3.8 -74.3 1197 F 1 186 09 07 09 09 29 09 OJ287 08 46 25 87.9 82.1 -0.1 -97.1 0 1 1 186 09 28 39 09 31 08 --- 08 48 25 88.4 80.1 -0.1 -99.3 120 F 1 191 09 28 57 09 32 58 3C274 08 50 15 36.6 89.1 -3.7 -74.4 0 1 1 191 09 32 28 09 52 55 --- 09 10 15 41.3 90.8 -3.4 -74.4 1197 F 1 230 09 32 46 09 53 39 3C279 09 10 59 28.9 108.8 -3.8 -63.5 14 1 1 230 09 53 09 09 55 39 --- 09 12 59 29.4 109.1 -3.7 -63.4 120 F 1 235 09 53 27 09 56 23 3C274 09 13 44 42.1 91.1 -3.3 -74.4 13 1 1 235 09 55 53 10 16 20 --- 09 33 44 46.8 93.0 -3.0 -74.1 1197 F 1 275 09 56 11 10 18 26 OJ287 09 35 50 80.5 -86.6 0.7 89.9 0 1 1 275 10 17 56 10 20 25 --- 09 37 50 80.0 -86.6 0.7 89.8 120 F 1 280 10 18 14 10 22 31 3C274 09 39 56 48.3 93.6 -2.9 -74.0 0 1 1 280 10 22 01 10 27 31 --- 09 44 56 49.5 94.1 -2.8 -73.9 299 F 1 290 10 22 19 10 27 31 M84 09 44 56 50.9 94.0 -2.7 -74.3 -9 1 1 290 10 27 31 10 28 11 --- 09 45 36 51.1 94.0 -2.7 -74.3 31 F 1 291 10 27 31 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 ---------------------------------------------------------------------------------------- --- Fri 15 Feb 2008 Day 46 --- 10 28 11 3C274 09 45 36 49.6 94.2 -2.8 -73.9 -9 1 1 291 10 28 11 10 28 40 --- 09 46 06 49.7 94.2 -2.8 -73.8 21 F 1 292 10 28 11 10 28 40 M84 09 46 06 51.2 94.1 -2.7 -74.3 -9 1 1 292 10 28 40 10 29 20 --- 09 46 46 51.4 94.1 -2.6 -74.3 31 F 1 294 10 28 40 10 29 20 3C274 09 46 46 49.9 94.3 -2.7 -73.8 -9 1 1 294 10 29 20 10 29 50 --- 09 47 16 50.0 94.3 -2.7 -73.8 21 F 1 295 10 29 20 10 29 50 M84 09 47 16 51.5 94.2 -2.6 -74.2 -9 1 1 295 10 29 50 10 30 30 --- 09 47 56 51.7 94.3 -2.6 -74.2 31 F 1 296 10 29 50 10 30 30 3C274 09 47 56 50.2 94.4 -2.7 -73.8 -9 1 1 296 10 30 30 10 31 00 --- 09 48 26 50.3 94.5 -2.7 -73.8 21 F 1 297 10 30 30 10 31 00 M84 09 48 26 51.8 94.3 -2.6 -74.2 -9 1 1 297 10 31 00 10 31 40 --- 09 49 06 51.9 94.4 -2.6 -74.2 31 F 1 298 10 31 00 10 31 49 3C274 09 49 15 50.5 94.6 -2.7 -73.8 0 1 1 298 10 31 40 10 36 48 --- 09 54 15 51.6 95.1 -2.6 -73.6 299 F 1 308 10 31 40 10 37 32 3C279 09 54 59 38.5 115.1 -3.0 -58.9 11 1 1 308 10 37 02 10 39 31 --- 09 56 59 38.9 115.5 -3.0 -58.6 120 F 1 313 10 37 20 10 40 15 3C274 09 57 43 52.5 95.5 -2.6 -73.5 10 1 1 313 10 39 45 11 00 12 --- 10 17 43 57.1 98.0 -2.2 -72.5 1197 F 1 353 10 40 03 11 02 15 OJ287 10 19 47 70.2 274.4 1.4 87.1 0 1 1 353 11 01 45 11 06 15 --- 10 23 47 69.2 274.6 1.5 86.9 239 F 1 361 11 02 03 11 08 17 3C274 10 25 50 59.0 99.1 -2.1 -72.0 0 1 1 361 11 07 47 11 28 14 --- 10 45 50 63.6 102.4 -1.8 -70.2 1197 F 1 401 11 08 05 11 28 55 3C279 10 46 31 49.0 125.4 -2.2 -50.5 6 1 1 401 11 28 25 11 30 55 --- 10 48 31 49.4 125.9 -2.1 -50.0 120 F 1 406 11 28 43 11 31 35 3C274 10 49 12 64.4 103.0 -1.7 -69.8 4 1 1 406 11 31 05 11 51 32 --- 11 09 12 68.9 107.6 -1.4 -66.6 1197 F 1 445 11 31 23 11 52 11 3C279 11 09 51 53.3 131.6 -1.8 -45.0 2 1 1 445 11 51 32 11 54 11 --- 11 11 51 53.7 132.2 -1.7 -44.5 120 F 1 450 11 51 32 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 ---------------------------------------------------------------------------------------- --- Fri 15 Feb 2008 Day 46 --- 11 54 50 3C274 11 12 30 69.7 108.6 -1.3 -65.9 1 1 1 450 11 54 11 12 14 46 --- 11 32 30 74.0 115.7 -1.0 -60.2 1197 F 1 490 11 54 11 12 15 26 3C279 11 33 10 57.2 139.2 -1.4 -38.2 0 1 1 490 12 14 46 12 17 26 --- 11 35 10 57.5 139.9 -1.4 -37.5 120 F 1 495 12 14 46 12 18 07 BLANKSKY 11 35 50 74.8 116.6 -0.9 -59.5 0 1 1 495 12 17 37 12 20 06 --- 11 37 50 75.3 117.6 -0.9 -58.6 120 F 1 500 12 17 55 12 20 12 3C274 11 37 56 75.2 118.2 -0.9 -58.1 0 1 1 500 12 20 06 12 25 11 --- 11 42 56 76.2 120.9 -0.8 -55.7 299 F 1 510 12 20 06 12 25 11 M84 11 42 56 77.6 122.7 -0.7 -54.3 -9 1 1 510 12 25 11 12 25 51 --- 11 43 36 77.8 123.1 -0.7 -53.9 31 F 1 511 12 25 11 12 25 51 3C274 11 43 36 76.3 121.3 -0.8 -55.4 -9 1 1 511 12 25 51 12 26 21 --- 11 44 06 76.4 121.6 -0.8 -55.1 21 F 1 512 12 25 51 12 26 21 M84 11 44 06 77.9 123.5 -0.7 -53.6 -9 1 1 512 12 26 21 12 27 01 --- 11 44 46 78.0 123.9 -0.7 -53.2 31 F 1 514 12 26 21 12 27 01 3C274 11 44 46 76.6 122.0 -0.8 -54.8 -9 1 1 514 12 27 01 12 27 31 --- 11 45 16 76.7 122.3 -0.8 -54.5 21 F 1 514 12 27 01 12 27 31 M84 11 45 16 78.1 124.3 -0.7 -52.9 -9 1 1 514 12 27 31 12 28 11 --- 11 45 56 78.2 124.8 -0.7 -52.4 31 F 1 516 12 27 31 12 28 11 3C274 11 45 56 76.8 122.7 -0.8 -54.1 -9 1 1 516 12 28 11 12 28 41 --- 11 46 26 76.9 123.0 -0.7 -53.8 21 F 1 517 12 28 11 12 28 41 M84 11 46 26 78.3 125.1 -0.7 -52.1 -9 1 1 517 12 28 41 12 29 20 --- 11 47 06 78.5 125.6 -0.6 -51.6 31 F 1 518 12 28 41 12 29 29 3C274 11 47 15 77.1 123.6 -0.7 -53.4 0 1 1 518 12 29 20 12 34 28 --- 11 52 15 78.0 127.1 -0.7 -50.2 299 F 1 528 12 29 20 12 36 28 3C274 11 54 15 78.4 128.6 -0.6 -48.8 113 1 1 528 12 35 58 12 56 25 --- 12 14 15 81.5 150.7 -0.3 -28.2 1197 F 1 568 12 36 16 12 57 09 3C279 12 14 59 62.4 157.2 -0.7 -21.5 0 1 1 568 12 56 39 12 59 09 --- 12 16 59 62.6 158.2 -0.7 -20.6 120 F 1 572 12 56 57 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 ---------------------------------------------------------------------------------------- --- Fri 15 Feb 2008 Day 46 --- 12 59 53 3C274 12 17 44 81.9 156.0 -0.2 -23.1 0 1 1 572 12 59 23 13 19 50 --- 12 37 44 82.4 192.0 0.1 11.6 1197 F 1 612 12 59 41 13 20 33 3C279 12 38 27 64.0 169.6 -0.3 -9.8 0 1 1 612 13 20 03 13 22 32 --- 12 40 27 64.1 170.8 -0.3 -8.7 120 F 1 617 13 20 21 13 23 15 3C274 12 41 09 82.2 198.0 0.2 17.3 0 1 1 617 13 22 45 13 43 11 --- 13 01 09 79.7 225.0 0.5 42.9 1197 F 1 656 13 23 03 13 43 48 3C279 13 01 46 64.3 183.0 0.1 2.8 0 1 1 656 13 43 11 13 45 48 --- 13 03 46 64.3 184.1 0.1 3.9 120 F 1 661 13 43 11 13 46 23 3C274 13 04 22 79.1 228.1 0.6 45.8 0 1 1 661 13 45 48 14 06 20 --- 13 24 22 75.2 241.7 0.9 58.0 1197 F 1 701 13 45 48 14 06 57 3C279 13 24 58 63.4 195.9 0.5 15.0 0 1 1 701 14 06 20 14 08 56 --- 13 26 58 63.3 197.0 0.5 16.0 120 F 1 706 14 06 20 14 09 33 3C274 13 27 35 74.6 243.2 0.9 59.3 0 1 1 706 14 08 56 14 14 32 --- 13 32 35 73.5 245.4 1.0 61.2 299 F 1 717 14 08 56 14 14 32 M84 13 32 35 72.5 249.1 1.1 64.4 -8 1 1 717 14 14 32 14 15 12 --- 13 33 15 72.3 249.4 1.1 64.6 31 F 1 718 14 14 32 14 15 12 3C274 13 33 15 73.4 245.7 1.0 61.4 -8 1 1 718 14 15 12 14 15 42 --- 13 33 45 73.3 245.9 1.0 61.6 21 F 1 719 14 15 12 14 15 42 M84 13 33 45 72.2 249.5 1.1 64.7 -8 1 1 719 14 15 42 14 16 22 --- 13 34 25 72.1 249.8 1.1 64.9 31 F 1 721 14 15 42 14 16 22 3C274 13 34 25 73.1 246.2 1.1 61.8 -8 1 1 721 14 16 22 14 16 52 --- 13 34 55 73.0 246.4 1.1 61.9 22 F 1 721 14 16 22 14 16 52 M84 13 34 55 72.0 249.9 1.2 65.0 -8 1 1 721 14 16 52 14 17 32 --- 13 35 35 71.8 250.2 1.2 65.2 32 F 1 723 14 16 52 14 17 32 3C274 13 35 35 72.9 246.6 1.1 62.2 -8 1 1 723 14 17 32 14 18 02 --- 13 36 05 72.7 246.8 1.1 62.3 22 F 1 724 14 17 32 14 18 02 M84 13 36 05 71.7 250.3 1.2 65.3 -8 1 1 724 14 18 02 14 18 42 --- 13 36 45 71.6 250.5 1.2 65.5 32 F 1 725 14 18 02 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 ---------------------------------------------------------------------------------------- --- Fri 15 Feb 2008 Day 46 --- 14 18 50 3C274 13 36 54 72.6 247.1 1.1 62.6 0 1 1 725 14 18 42 14 23 49 --- 13 41 54 71.5 248.9 1.2 64.0 299 F 1 735 14 18 42 14 23 54 3C274 13 41 58 71.5 248.9 1.2 64.0 0 1 1 735 14 23 49 14 43 50 --- 14 01 58 67.0 254.5 1.5 68.2 1197 F 1 774 14 23 49 14 44 23 3C279 14 02 31 59.7 214.0 1.1 31.9 0 1 1 774 14 43 50 14 46 23 --- 14 04 31 59.4 214.8 1.1 32.7 120 F 1 779 14 43 50 14 46 56 3C274 14 05 04 66.3 255.2 1.6 68.6 0 1 1 779 14 46 23 15 01 53 --- 14 20 04 62.9 258.2 1.8 70.5 898 F 1 809 14 46 23 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 15.750141 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