COVER INFORMATION Station: VLBA_MK (Code Mk ) Experiment: bw090 M87 fast movie. Walker, Ly, Junor, Hardee Exp. Code: bw090c 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 ---------------------------------------------------------------------------------------- --- Mon 4 Feb 2008 Day 35 --- 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 47 22 OJ287 04 20 39 26.0 76.7 -4.6 -77.1 0 1 1 0 05 46 52 05 49 21 --- 04 22 39 26.4 76.8 -4.5 -77.2 120 F 1 5 05 47 10 06 13 27 OJ287 04 46 49 32.0 78.1 -4.1 -78.6 1429 1 1 5 06 12 57 06 15 27 --- 04 48 49 32.4 78.3 -4.1 -78.7 120 F 1 10 06 13 15 07 02 52 OJ287 05 36 22 43.4 80.7 -3.3 -81.3 2818 1 1 10 07 02 22 07 04 52 --- 05 38 22 43.9 80.8 -3.3 -81.4 120 F 1 14 07 02 40 07 47 19 OJ287 06 20 57 53.8 82.8 -2.6 -83.6 2522 1 1 14 07 46 49 07 49 19 --- 06 22 57 54.3 82.9 -2.5 -83.7 120 F 1 19 07 47 07 08 36 00 OJ287 07 09 45 65.2 84.8 -1.8 -86.1 2773 1 1 19 08 35 30 08 38 00 --- 07 11 45 65.7 84.9 -1.7 -86.2 120 F 1 24 08 35 48 08 39 49 3C274 07 13 35 14.0 81.7 -5.3 -72.4 0 1 1 24 08 39 19 08 59 46 --- 07 33 35 18.6 83.2 -5.0 -73.0 1197 F 1 64 08 39 37 09 03 14 3C274 07 37 04 19.4 83.5 -4.9 -73.1 201 1 1 64 09 02 44 09 08 13 --- 07 42 04 20.6 83.8 -4.8 -73.2 299 F 1 74 09 03 02 09 08 13 M84 07 42 04 22.1 83.8 -4.7 -73.6 -9 1 1 74 09 08 13 09 08 53 --- 07 42 44 22.2 83.8 -4.7 -73.6 31 F 1 76 09 08 13 09 08 53 3C274 07 42 44 20.8 83.9 -4.8 -73.3 -9 1 1 76 09 08 53 09 09 23 --- 07 43 14 20.9 83.9 -4.8 -73.3 21 F 1 77 09 08 53 09 09 23 M84 07 43 14 22.4 83.8 -4.7 -73.6 -9 1 1 77 09 09 23 09 10 03 --- 07 43 54 22.5 83.9 -4.7 -73.6 31 F 1 78 09 09 23 09 10 03 3C274 07 43 54 21.0 84.0 -4.8 -73.3 -9 1 1 78 09 10 03 09 10 33 --- 07 44 24 21.1 84.0 -4.8 -73.3 21 F 1 79 09 10 03 09 10 33 M84 07 44 24 22.6 83.9 -4.7 -73.7 -9 1 1 79 09 10 33 09 11 13 --- 07 45 04 22.8 84.0 -4.7 -73.7 31 F 1 80 09 10 33 09 11 13 3C274 07 45 04 21.3 84.1 -4.8 -73.3 -9 1 1 80 09 11 13 09 11 43 --- 07 45 34 21.4 84.1 -4.8 -73.3 21 F 1 81 09 11 13 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 ---------------------------------------------------------------------------------------- --- Mon 4 Feb 2008 Day 35 --- 09 11 43 M84 07 45 34 22.9 84.0 -4.7 -73.7 -9 1 1 81 09 11 43 09 12 23 --- 07 46 14 23.1 84.1 -4.7 -73.7 31 F 1 82 09 11 43 09 12 32 3C274 07 46 23 21.6 84.2 -4.7 -73.4 0 1 1 82 09 12 23 09 17 31 --- 07 51 23 22.8 84.5 -4.7 -73.5 299 F 1 92 09 12 23 09 19 31 BLANKSKY 07 53 23 23.3 84.5 -4.6 -73.6 113 1 1 92 09 19 01 09 21 30 --- 07 55 23 23.8 84.7 -4.6 -73.7 120 F 1 97 09 19 19 09 23 21 OJ287 07 57 15 76.4 86.4 -1.0 -88.7 0 1 1 97 09 22 51 09 25 21 --- 07 59 15 76.8 86.4 -0.9 -88.8 120 F 1 102 09 23 09 09 27 11 3C274 08 01 04 25.1 85.3 -4.5 -73.7 0 1 1 102 09 26 41 09 47 07 --- 08 21 04 29.7 86.8 -4.2 -74.1 1197 F 1 142 09 26 59 09 47 52 3C279 08 21 49 17.8 103.2 -4.6 -67.0 14 1 1 142 09 47 22 09 49 51 --- 08 23 49 18.2 103.4 -4.5 -66.9 120 F 1 146 09 47 40 09 50 36 3C274 08 24 33 30.6 87.1 -4.1 -74.1 14 1 1 146 09 50 06 10 10 32 --- 08 44 33 35.3 88.6 -3.8 -74.3 1197 F 1 186 09 50 24 10 12 24 OJ287 08 46 25 87.9 82.1 -0.1 -97.1 0 1 1 186 10 11 54 10 14 23 --- 08 48 25 88.4 80.1 -0.1 -99.3 120 F 1 191 10 12 12 10 16 13 3C274 08 50 15 36.6 89.1 -3.7 -74.4 0 1 1 191 10 15 43 10 36 10 --- 09 10 15 41.3 90.8 -3.4 -74.4 1197 F 1 230 10 16 01 10 36 54 3C279 09 10 59 28.9 108.8 -3.8 -63.5 14 1 1 230 10 36 24 10 38 54 --- 09 12 59 29.4 109.1 -3.7 -63.4 120 F 1 235 10 36 42 10 39 38 3C274 09 13 44 42.1 91.1 -3.3 -74.4 13 1 1 235 10 39 08 10 59 35 --- 09 33 44 46.8 93.0 -3.0 -74.1 1197 F 1 275 10 39 26 11 01 41 OJ287 09 35 50 80.5 -86.6 0.7 89.9 0 1 1 275 11 01 11 11 03 40 --- 09 37 50 80.0 -86.6 0.7 89.8 120 F 1 280 11 01 29 11 05 46 3C274 09 39 56 48.3 93.6 -2.9 -74.0 0 1 1 280 11 05 16 11 10 46 --- 09 44 56 49.5 94.1 -2.8 -73.9 299 F 1 290 11 05 34 11 10 46 M84 09 44 56 50.9 94.0 -2.7 -74.3 -9 1 1 290 11 10 46 11 11 26 --- 09 45 36 51.1 94.0 -2.7 -74.3 31 F 1 291 11 10 46 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 ---------------------------------------------------------------------------------------- --- Mon 4 Feb 2008 Day 35 --- 11 11 26 3C274 09 45 36 49.6 94.2 -2.8 -73.9 -9 1 1 291 11 11 26 11 11 55 --- 09 46 06 49.7 94.2 -2.8 -73.8 21 F 1 292 11 11 26 11 11 55 M84 09 46 06 51.2 94.1 -2.7 -74.3 -9 1 1 292 11 11 55 11 12 35 --- 09 46 46 51.4 94.1 -2.6 -74.3 31 F 1 294 11 11 55 11 12 35 3C274 09 46 46 49.9 94.3 -2.7 -73.8 -9 1 1 294 11 12 35 11 13 05 --- 09 47 16 50.0 94.3 -2.7 -73.8 21 F 1 295 11 12 35 11 13 05 M84 09 47 16 51.5 94.2 -2.6 -74.2 -9 1 1 295 11 13 05 11 13 45 --- 09 47 56 51.7 94.3 -2.6 -74.2 31 F 1 296 11 13 05 11 13 45 3C274 09 47 56 50.2 94.4 -2.7 -73.8 -9 1 1 296 11 13 45 11 14 15 --- 09 48 26 50.3 94.5 -2.7 -73.8 21 F 1 297 11 13 45 11 14 15 M84 09 48 26 51.8 94.3 -2.6 -74.2 -9 1 1 297 11 14 15 11 14 55 --- 09 49 06 51.9 94.4 -2.6 -74.2 31 F 1 298 11 14 15 11 15 04 3C274 09 49 15 50.5 94.6 -2.7 -73.8 0 1 1 298 11 14 55 11 20 03 --- 09 54 15 51.6 95.1 -2.6 -73.6 299 F 1 308 11 14 55 11 20 47 3C279 09 54 59 38.5 115.1 -3.0 -58.9 11 1 1 308 11 20 17 11 22 46 --- 09 56 59 38.9 115.5 -3.0 -58.6 120 F 1 313 11 20 35 11 23 30 3C274 09 57 43 52.5 95.5 -2.6 -73.5 10 1 1 313 11 23 00 11 43 27 --- 10 17 43 57.1 98.0 -2.2 -72.5 1197 F 1 353 11 23 18 11 45 30 OJ287 10 19 47 70.2 274.4 1.4 87.1 0 1 1 353 11 45 00 11 49 30 --- 10 23 47 69.2 274.6 1.5 86.9 239 F 1 361 11 45 18 11 51 32 3C274 10 25 50 59.0 99.1 -2.1 -72.0 0 1 1 361 11 51 02 12 11 29 --- 10 45 50 63.6 102.4 -1.8 -70.2 1197 F 1 401 11 51 20 12 12 10 3C279 10 46 31 49.0 125.4 -2.2 -50.5 6 1 1 401 12 11 40 12 14 10 --- 10 48 31 49.4 125.9 -2.1 -50.0 120 F 1 406 12 11 58 12 14 50 3C274 10 49 12 64.4 103.0 -1.7 -69.8 4 1 1 406 12 14 20 12 34 47 --- 11 09 12 68.9 107.6 -1.4 -66.6 1197 F 1 445 12 14 38 12 35 26 3C279 11 09 51 53.3 131.6 -1.8 -45.0 2 1 1 445 12 34 47 12 37 26 --- 11 11 51 53.7 132.2 -1.7 -44.5 120 F 1 450 12 34 47 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 ---------------------------------------------------------------------------------------- --- Mon 4 Feb 2008 Day 35 --- 12 38 05 3C274 11 12 30 69.7 108.6 -1.3 -65.9 1 1 1 450 12 37 26 12 58 01 --- 11 32 30 74.0 115.7 -1.0 -60.2 1197 F 1 490 12 37 26 12 58 41 3C279 11 33 10 57.2 139.2 -1.4 -38.2 0 1 1 490 12 58 01 13 00 41 --- 11 35 10 57.5 139.9 -1.4 -37.5 120 F 1 495 12 58 01 13 01 21 BLANKSKY 11 35 50 74.8 116.6 -0.9 -59.5 0 1 1 495 13 00 51 13 03 21 --- 11 37 50 75.3 117.6 -0.9 -58.6 120 F 1 500 13 01 09 13 03 27 3C274 11 37 56 75.2 118.2 -0.9 -58.1 0 1 1 500 13 03 21 13 08 26 --- 11 42 56 76.2 120.9 -0.8 -55.7 299 F 1 510 13 03 21 13 08 26 M84 11 42 56 77.6 122.7 -0.7 -54.3 -9 1 1 510 13 08 26 13 09 06 --- 11 43 36 77.8 123.1 -0.7 -53.9 31 F 1 511 13 08 26 13 09 06 3C274 11 43 36 76.3 121.3 -0.8 -55.4 -9 1 1 511 13 09 06 13 09 36 --- 11 44 06 76.4 121.6 -0.8 -55.1 21 F 1 512 13 09 06 13 09 36 M84 11 44 06 77.9 123.5 -0.7 -53.6 -9 1 1 512 13 09 36 13 10 16 --- 11 44 46 78.0 123.9 -0.7 -53.2 31 F 1 514 13 09 36 13 10 16 3C274 11 44 46 76.6 122.0 -0.8 -54.8 -9 1 1 514 13 10 16 13 10 46 --- 11 45 16 76.7 122.3 -0.8 -54.5 21 F 1 514 13 10 16 13 10 46 M84 11 45 16 78.1 124.3 -0.7 -52.9 -9 1 1 514 13 10 46 13 11 26 --- 11 45 56 78.2 124.8 -0.7 -52.4 31 F 1 516 13 10 46 13 11 26 3C274 11 45 56 76.8 122.7 -0.8 -54.1 -9 1 1 516 13 11 26 13 11 56 --- 11 46 26 76.9 123.0 -0.7 -53.8 21 F 1 517 13 11 26 13 11 56 M84 11 46 26 78.3 125.2 -0.7 -52.1 -9 1 1 517 13 11 56 13 12 35 --- 11 47 06 78.5 125.7 -0.6 -51.6 31 F 1 518 13 11 56 13 12 44 3C274 11 47 15 77.1 123.6 -0.7 -53.4 0 1 1 518 13 12 35 13 17 43 --- 11 52 15 78.0 127.1 -0.7 -50.2 299 F 1 528 13 12 35 13 19 43 3C274 11 54 15 78.4 128.6 -0.6 -48.8 113 1 1 528 13 19 13 13 39 40 --- 12 14 15 81.5 150.7 -0.3 -28.1 1197 F 1 568 13 19 31 13 40 24 3C279 12 14 59 62.4 157.2 -0.7 -21.5 0 1 1 568 13 39 54 13 42 24 --- 12 16 59 62.6 158.2 -0.7 -20.6 120 F 1 572 13 40 12 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 ---------------------------------------------------------------------------------------- --- Mon 4 Feb 2008 Day 35 --- 13 43 08 3C274 12 17 44 81.9 156.0 -0.2 -23.1 0 1 1 572 13 42 38 14 03 05 --- 12 37 44 82.4 192.0 0.1 11.6 1197 F 1 612 13 42 56 14 03 48 3C279 12 38 27 64.0 169.7 -0.3 -9.8 0 1 1 612 14 03 18 14 05 47 --- 12 40 27 64.1 170.8 -0.3 -8.7 120 F 1 617 14 03 36 14 06 30 3C274 12 41 09 82.2 198.0 0.2 17.4 0 1 1 617 14 06 00 14 26 26 --- 13 01 09 79.6 225.0 0.5 42.9 1197 F 1 656 14 06 18 14 27 03 3C279 13 01 46 64.3 183.0 0.1 2.8 0 1 1 656 14 26 26 14 29 03 --- 13 03 46 64.3 184.1 0.1 3.9 120 F 1 661 14 26 26 14 29 38 3C274 13 04 22 79.1 228.1 0.6 45.8 0 1 1 661 14 29 03 14 49 35 --- 13 24 22 75.2 241.7 0.9 58.0 1197 F 1 701 14 29 03 14 50 12 3C279 13 24 58 63.4 195.9 0.5 15.0 0 1 1 701 14 49 35 14 52 11 --- 13 26 58 63.3 197.0 0.5 16.0 120 F 1 706 14 49 35 14 52 48 3C274 13 27 35 74.6 243.2 0.9 59.3 0 1 1 706 14 52 11 14 57 47 --- 13 32 35 73.5 245.4 1.0 61.2 299 F 1 717 14 52 11 14 57 47 M84 13 32 35 72.5 249.1 1.1 64.4 -8 1 1 717 14 57 47 14 58 27 --- 13 33 15 72.3 249.4 1.1 64.6 31 F 1 718 14 57 47 14 58 27 3C274 13 33 15 73.4 245.7 1.0 61.4 -8 1 1 718 14 58 27 14 58 57 --- 13 33 45 73.3 245.9 1.0 61.6 21 F 1 719 14 58 27 14 58 57 M84 13 33 45 72.2 249.5 1.1 64.7 -8 1 1 719 14 58 57 14 59 37 --- 13 34 25 72.1 249.8 1.1 64.9 31 F 1 721 14 58 57 14 59 37 3C274 13 34 25 73.1 246.2 1.1 61.8 -8 1 1 721 14 59 37 15 00 07 --- 13 34 55 73.0 246.4 1.1 61.9 22 F 1 721 14 59 37 15 00 07 M84 13 34 55 72.0 249.9 1.2 65.0 -8 1 1 721 15 00 07 15 00 47 --- 13 35 35 71.8 250.2 1.2 65.2 32 F 1 723 15 00 07 15 00 47 3C274 13 35 35 72.9 246.6 1.1 62.2 -8 1 1 723 15 00 47 15 01 17 --- 13 36 05 72.7 246.8 1.1 62.3 22 F 1 724 15 00 47 15 01 17 M84 13 36 05 71.7 250.3 1.2 65.3 -8 1 1 724 15 01 17 15 01 57 --- 13 36 45 71.6 250.5 1.2 65.5 32 F 1 725 15 01 17 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 ---------------------------------------------------------------------------------------- --- Mon 4 Feb 2008 Day 35 --- 15 02 05 3C274 13 36 54 72.6 247.1 1.1 62.6 0 1 1 725 15 01 57 15 07 04 --- 13 41 54 71.5 248.9 1.2 64.0 299 F 1 735 15 01 57 15 07 08 3C274 13 41 58 71.5 248.9 1.2 64.0 0 1 1 735 15 07 04 15 27 05 --- 14 01 58 67.0 254.5 1.5 68.2 1197 F 1 774 15 07 04 15 27 38 3C279 14 02 31 59.7 214.0 1.1 31.9 0 1 1 774 15 27 05 15 29 38 --- 14 04 31 59.4 214.8 1.1 32.7 120 F 1 779 15 27 05 15 30 11 3C274 14 05 04 66.3 255.2 1.6 68.6 0 1 1 779 15 29 38 15 45 08 --- 14 20 04 62.9 258.2 1.8 70.5 898 F 1 809 15 29 38 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: 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 15.479103 0.00 12 50 01.74793 * 12 33 28.04383 12 30 33.01113 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 18.863821 0.21 0851+202 20 17 58.41741 * 20 06 30.64086 20 04 35.52236 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 29.885828 0.32 * M84 13 09 49.76862 * 12 53 13.13923 12 50 17.76457 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 15.481626 0.31 1228+126 12 40 01.74901 * 12 23 28.04383 12 20 33.05458 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 37.524515 0.20 1253-055 -05 31 07.99586 *-05 47 21.52472 -05 50 08.62470 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 131.2 OJ287 174.9 M84 132.6 3C274 131.2 3C279 119.7 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