COVER INFORMATION Station: VLBA_MK (Code Mk ) Experiment: bw090 M87 fast movie. Walker, Ly, Junor, Hardee Exp. Code: bw090a 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 ---------------------------------------------------------------------------------------- --- Sat 26 Jan 2008 Day 26 --- 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 22 45 OJ287 04 20 39 26.0 76.7 -4.6 -77.1 0 1 1 0 06 22 15 06 24 44 --- 04 22 39 26.4 76.8 -4.5 -77.2 120 F 1 5 06 22 33 06 48 50 OJ287 04 46 49 32.0 78.1 -4.1 -78.6 1429 1 1 5 06 48 20 06 50 50 --- 04 48 49 32.4 78.3 -4.1 -78.7 120 F 1 10 06 48 38 07 38 16 OJ287 05 36 22 43.4 80.7 -3.3 -81.3 2818 1 1 10 07 37 46 07 40 15 --- 05 38 22 43.9 80.8 -3.3 -81.4 120 F 1 14 07 38 04 08 22 43 OJ287 06 20 57 53.8 82.8 -2.6 -83.6 2522 1 1 14 08 22 13 08 24 42 --- 06 22 57 54.3 82.9 -2.5 -83.7 120 F 1 19 08 22 31 09 11 23 OJ287 07 09 45 65.2 84.8 -1.8 -86.1 2773 1 1 19 09 10 53 09 13 23 --- 07 11 45 65.7 84.9 -1.7 -86.2 120 F 1 24 09 11 11 09 15 12 3C274 07 13 35 14.0 81.7 -5.3 -72.4 0 1 1 24 09 14 42 09 35 09 --- 07 33 35 18.6 83.2 -5.0 -73.0 1197 F 1 64 09 15 00 09 38 37 3C274 07 37 04 19.4 83.5 -4.9 -73.1 201 1 1 64 09 38 07 09 43 37 --- 07 42 04 20.6 83.8 -4.8 -73.2 299 F 1 74 09 38 25 09 43 37 M84 07 42 04 22.1 83.8 -4.7 -73.6 -9 1 1 74 09 43 37 09 44 17 --- 07 42 44 22.2 83.8 -4.7 -73.6 31 F 1 76 09 43 37 09 44 17 3C274 07 42 44 20.8 83.9 -4.8 -73.3 -9 1 1 76 09 44 17 09 44 46 --- 07 43 14 20.9 83.9 -4.8 -73.3 21 F 1 77 09 44 17 09 44 46 M84 07 43 14 22.4 83.8 -4.7 -73.6 -9 1 1 77 09 44 46 09 45 26 --- 07 43 54 22.5 83.9 -4.7 -73.6 31 F 1 78 09 44 46 09 45 26 3C274 07 43 54 21.0 84.0 -4.8 -73.3 -9 1 1 78 09 45 26 09 45 56 --- 07 44 24 21.2 84.0 -4.8 -73.3 21 F 1 79 09 45 26 09 45 56 M84 07 44 24 22.6 83.9 -4.7 -73.7 -9 1 1 79 09 45 56 09 46 36 --- 07 45 04 22.8 84.0 -4.7 -73.7 31 F 1 80 09 45 56 09 46 36 3C274 07 45 04 21.3 84.1 -4.8 -73.3 -9 1 1 80 09 46 36 09 47 06 --- 07 45 34 21.4 84.1 -4.8 -73.3 21 F 1 81 09 46 36 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 ---------------------------------------------------------------------------------------- --- Sat 26 Jan 2008 Day 26 --- 09 47 06 M84 07 45 34 22.9 84.0 -4.7 -73.7 -9 1 1 81 09 47 06 09 47 46 --- 07 46 14 23.1 84.1 -4.7 -73.7 31 F 1 82 09 47 06 09 47 55 3C274 07 46 23 21.6 84.2 -4.7 -73.4 0 1 1 82 09 47 46 09 52 54 --- 07 51 23 22.8 84.5 -4.7 -73.5 299 F 1 92 09 47 46 09 54 54 BLANKSKY 07 53 23 23.3 84.5 -4.6 -73.6 113 1 1 92 09 54 24 09 56 53 --- 07 55 23 23.8 84.7 -4.6 -73.7 120 F 1 97 09 54 42 09 58 45 OJ287 07 57 15 76.4 86.4 -1.0 -88.7 0 1 1 97 09 58 15 10 00 44 --- 07 59 15 76.8 86.4 -0.9 -88.8 120 F 1 102 09 58 33 10 02 34 3C274 08 01 04 25.1 85.3 -4.5 -73.7 0 1 1 102 10 02 04 10 22 30 --- 08 21 04 29.7 86.8 -4.2 -74.1 1197 F 1 142 10 02 22 10 23 15 3C279 08 21 49 17.8 103.2 -4.6 -67.0 14 1 1 142 10 22 45 10 25 14 --- 08 23 49 18.2 103.4 -4.5 -66.9 120 F 1 146 10 23 03 10 25 59 3C274 08 24 33 30.6 87.1 -4.1 -74.1 14 1 1 146 10 25 29 10 45 56 --- 08 44 33 35.3 88.6 -3.8 -74.3 1197 F 1 186 10 25 47 10 47 47 OJ287 08 46 25 87.9 82.1 -0.1 -97.1 0 1 1 186 10 47 17 10 49 47 --- 08 48 25 88.4 80.1 -0.1 -99.3 120 F 1 191 10 47 35 10 51 36 3C274 08 50 15 36.6 89.1 -3.7 -74.4 0 1 1 191 10 51 06 11 11 33 --- 09 10 15 41.3 90.8 -3.4 -74.4 1197 F 1 230 10 51 24 11 12 17 3C279 09 10 59 28.9 108.8 -3.8 -63.5 14 1 1 230 11 11 47 11 14 17 --- 09 12 59 29.4 109.1 -3.7 -63.4 120 F 1 235 11 12 05 11 15 01 3C274 09 13 44 42.1 91.1 -3.3 -74.4 13 1 1 235 11 14 31 11 34 58 --- 09 33 44 46.8 93.0 -3.0 -74.1 1197 F 1 275 11 14 49 11 37 04 OJ287 09 35 50 80.5 -86.6 0.7 89.9 0 1 1 275 11 36 34 11 39 04 --- 09 37 50 80.0 -86.6 0.7 89.8 120 F 1 280 11 36 52 11 41 10 3C274 09 39 56 48.3 93.6 -2.9 -74.0 0 1 1 280 11 40 40 11 46 09 --- 09 44 56 49.5 94.1 -2.8 -73.9 299 F 1 290 11 40 58 11 46 09 M84 09 44 56 50.9 94.0 -2.7 -74.3 -9 1 1 290 11 46 09 11 46 49 --- 09 45 36 51.1 94.0 -2.7 -74.3 31 F 1 291 11 46 09 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 ---------------------------------------------------------------------------------------- --- Sat 26 Jan 2008 Day 26 --- 11 46 49 3C274 09 45 36 49.6 94.2 -2.8 -73.9 -9 1 1 291 11 46 49 11 47 19 --- 09 46 06 49.7 94.2 -2.8 -73.8 21 F 1 292 11 46 49 11 47 19 M84 09 46 06 51.2 94.1 -2.7 -74.3 -9 1 1 292 11 47 19 11 47 59 --- 09 46 46 51.4 94.1 -2.6 -74.3 31 F 1 294 11 47 19 11 47 59 3C274 09 46 46 49.9 94.3 -2.7 -73.8 -9 1 1 294 11 47 59 11 48 28 --- 09 47 16 50.0 94.3 -2.7 -73.8 21 F 1 295 11 47 59 11 48 28 M84 09 47 16 51.5 94.2 -2.6 -74.2 -9 1 1 295 11 48 28 11 49 08 --- 09 47 56 51.7 94.3 -2.6 -74.2 31 F 1 296 11 48 28 11 49 08 3C274 09 47 56 50.2 94.4 -2.7 -73.8 -9 1 1 296 11 49 08 11 49 38 --- 09 48 26 50.3 94.5 -2.7 -73.8 21 F 1 297 11 49 08 11 49 38 M84 09 48 26 51.8 94.3 -2.6 -74.2 -9 1 1 297 11 49 38 11 50 18 --- 09 49 06 51.9 94.4 -2.6 -74.2 31 F 1 298 11 49 38 11 50 27 3C274 09 49 15 50.5 94.6 -2.7 -73.8 0 1 1 298 11 50 18 11 55 26 --- 09 54 15 51.6 95.1 -2.6 -73.6 299 F 1 308 11 50 18 11 56 10 3C279 09 54 59 38.5 115.1 -3.0 -58.9 11 1 1 308 11 55 40 11 58 09 --- 09 56 59 38.9 115.5 -3.0 -58.6 120 F 1 313 11 55 58 11 58 53 3C274 09 57 43 52.5 95.5 -2.6 -73.5 10 1 1 313 11 58 23 12 18 50 --- 10 17 43 57.1 98.0 -2.2 -72.5 1197 F 1 353 11 58 41 12 20 53 OJ287 10 19 47 70.2 274.4 1.4 87.1 0 1 1 353 12 20 23 12 24 53 --- 10 23 47 69.2 274.6 1.5 86.9 239 F 1 361 12 20 41 12 26 56 3C274 10 25 50 59.0 99.1 -2.1 -72.0 0 1 1 361 12 26 26 12 46 52 --- 10 45 50 63.6 102.4 -1.8 -70.2 1197 F 1 401 12 26 44 12 47 33 3C279 10 46 31 49.0 125.4 -2.2 -50.5 6 1 1 401 12 47 03 12 49 33 --- 10 48 31 49.4 125.9 -2.1 -50.0 120 F 1 406 12 47 21 12 50 13 3C274 10 49 12 64.4 103.0 -1.7 -69.8 4 1 1 406 12 49 43 13 10 10 --- 11 09 12 68.9 107.6 -1.4 -66.6 1197 F 1 445 12 50 01 13 10 49 3C279 11 09 51 53.3 131.6 -1.8 -45.0 2 1 1 445 13 10 10 13 12 49 --- 11 11 51 53.7 132.2 -1.7 -44.5 120 F 1 450 13 10 10 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 ---------------------------------------------------------------------------------------- --- Sat 26 Jan 2008 Day 26 --- 13 13 28 3C274 11 12 30 69.7 108.6 -1.3 -65.9 1 1 1 450 13 12 49 13 33 24 --- 11 32 30 74.0 115.7 -1.0 -60.2 1197 F 1 490 13 12 49 13 34 04 3C279 11 33 10 57.2 139.2 -1.4 -38.2 0 1 1 490 13 33 24 13 36 04 --- 11 35 10 57.5 139.9 -1.4 -37.5 120 F 1 495 13 33 24 13 36 45 BLANKSKY 11 35 50 74.8 116.6 -0.9 -59.5 0 1 1 495 13 36 15 13 38 44 --- 11 37 50 75.3 117.6 -0.9 -58.6 120 F 1 500 13 36 33 13 38 50 3C274 11 37 56 75.2 118.2 -0.9 -58.1 0 1 1 500 13 38 44 13 43 49 --- 11 42 56 76.2 120.9 -0.8 -55.7 299 F 1 510 13 38 44 13 43 49 M84 11 42 56 77.6 122.7 -0.7 -54.3 -9 1 1 510 13 43 49 13 44 29 --- 11 43 36 77.8 123.1 -0.7 -53.9 31 F 1 511 13 43 49 13 44 29 3C274 11 43 36 76.3 121.3 -0.8 -55.4 -9 1 1 511 13 44 29 13 44 59 --- 11 44 06 76.4 121.6 -0.8 -55.1 21 F 1 512 13 44 29 13 44 59 M84 11 44 06 77.9 123.5 -0.7 -53.6 -9 1 1 512 13 44 59 13 45 39 --- 11 44 46 78.0 124.0 -0.7 -53.2 31 F 1 514 13 44 59 13 45 39 3C274 11 44 46 76.6 122.0 -0.8 -54.8 -9 1 1 514 13 45 39 13 46 09 --- 11 45 16 76.7 122.3 -0.8 -54.5 21 F 1 514 13 45 39 13 46 09 M84 11 45 16 78.1 124.3 -0.7 -52.9 -9 1 1 514 13 46 09 13 46 49 --- 11 45 56 78.2 124.8 -0.7 -52.4 31 F 1 516 13 46 09 13 46 49 3C274 11 45 56 76.8 122.7 -0.8 -54.1 -9 1 1 516 13 46 49 13 47 19 --- 11 46 26 76.9 123.1 -0.7 -53.8 21 F 1 517 13 46 49 13 47 19 M84 11 46 26 78.3 125.2 -0.7 -52.1 -9 1 1 517 13 47 19 13 47 59 --- 11 47 06 78.5 125.7 -0.6 -51.6 31 F 1 518 13 47 19 13 48 07 3C274 11 47 15 77.1 123.6 -0.7 -53.4 0 1 1 518 13 47 59 13 53 07 --- 11 52 15 78.0 127.1 -0.7 -50.2 299 F 1 528 13 47 59 13 55 06 3C274 11 54 15 78.4 128.6 -0.6 -48.8 113 1 1 528 13 54 36 14 15 03 --- 12 14 15 81.5 150.7 -0.3 -28.1 1197 F 1 568 13 54 54 14 15 47 3C279 12 14 59 62.4 157.2 -0.7 -21.5 0 1 1 568 14 15 17 14 17 47 --- 12 16 59 62.6 158.2 -0.7 -20.6 120 F 1 572 14 15 35 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 ---------------------------------------------------------------------------------------- --- Sat 26 Jan 2008 Day 26 --- 14 18 31 3C274 12 17 44 81.9 156.0 -0.2 -23.1 0 1 1 572 14 18 01 14 38 28 --- 12 37 44 82.4 192.0 0.1 11.6 1197 F 1 612 14 18 19 14 39 11 3C279 12 38 27 64.0 169.7 -0.3 -9.8 0 1 1 612 14 38 41 14 41 11 --- 12 40 27 64.1 170.8 -0.3 -8.7 120 F 1 617 14 38 59 14 41 53 3C274 12 41 09 82.2 198.0 0.2 17.4 0 1 1 617 14 41 23 15 01 50 --- 13 01 09 79.6 225.0 0.5 42.9 1197 F 1 656 14 41 41 15 02 26 3C279 13 01 46 64.3 183.0 0.1 2.8 0 1 1 656 15 01 50 15 04 26 --- 13 03 46 64.3 184.1 0.1 3.9 120 F 1 661 15 01 50 15 05 02 3C274 13 04 22 79.1 228.1 0.6 45.8 0 1 1 661 15 04 26 15 24 58 --- 13 24 22 75.2 241.7 0.9 58.0 1197 F 1 701 15 04 26 15 25 35 3C279 13 24 58 63.4 195.9 0.5 15.0 0 1 1 701 15 24 58 15 27 34 --- 13 26 58 63.3 197.0 0.5 16.1 120 F 1 706 15 24 58 15 28 11 3C274 13 27 35 74.6 243.2 0.9 59.3 0 1 1 706 15 27 34 15 33 10 --- 13 32 35 73.5 245.4 1.0 61.2 299 F 1 717 15 27 34 15 33 10 M84 13 32 35 72.5 249.1 1.1 64.4 -8 1 1 717 15 33 10 15 33 50 --- 13 33 15 72.3 249.4 1.1 64.6 31 F 1 718 15 33 10 15 33 50 3C274 13 33 15 73.4 245.7 1.0 61.4 -8 1 1 718 15 33 50 15 34 20 --- 13 33 45 73.2 245.9 1.0 61.6 21 F 1 719 15 33 50 15 34 20 M84 13 33 45 72.2 249.6 1.1 64.7 -8 1 1 719 15 34 20 15 35 00 --- 13 34 25 72.1 249.8 1.1 64.9 31 F 1 721 15 34 20 15 35 00 3C274 13 34 25 73.1 246.2 1.1 61.8 -8 1 1 721 15 35 00 15 35 30 --- 13 34 55 73.0 246.4 1.1 61.9 22 F 1 721 15 35 00 15 35 30 M84 13 34 55 72.0 249.9 1.2 65.0 -8 1 1 721 15 35 30 15 36 10 --- 13 35 35 71.8 250.2 1.2 65.2 32 F 1 723 15 35 30 15 36 10 3C274 13 35 35 72.9 246.6 1.1 62.2 -8 1 1 723 15 36 10 15 36 40 --- 13 36 05 72.7 246.8 1.1 62.3 22 F 1 724 15 36 10 15 36 40 M84 13 36 05 71.7 250.3 1.2 65.3 -8 1 1 724 15 36 40 15 37 20 --- 13 36 45 71.6 250.5 1.2 65.5 32 F 1 725 15 36 40 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 ---------------------------------------------------------------------------------------- --- Sat 26 Jan 2008 Day 26 --- 15 37 28 3C274 13 36 54 72.6 247.1 1.1 62.6 0 1 1 725 15 37 20 15 42 27 --- 13 41 54 71.5 248.9 1.2 64.0 299 F 1 735 15 37 20 15 42 32 3C274 13 41 58 71.5 248.9 1.2 64.0 0 1 1 735 15 42 27 16 02 28 --- 14 01 58 67.0 254.5 1.5 68.2 1197 F 1 774 15 42 27 16 03 01 3C279 14 02 31 59.7 214.0 1.1 31.9 0 1 1 774 16 02 28 16 05 01 --- 14 04 31 59.4 214.8 1.1 32.7 120 F 1 779 16 02 28 16 05 34 3C274 14 05 04 66.3 255.2 1.6 68.6 0 1 1 779 16 05 01 16 20 32 --- 14 20 04 62.9 258.2 1.8 70.5 898 F 1 809 16 05 01 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 15.222784 0.00 12 50 01.74793 * 12 33 28.04383 12 30 34.13363 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 18.765957 0.21 0851+202 20 17 58.41741 * 20 06 30.64086 20 04 35.81618 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 29.632220 0.32 * M84 13 09 49.76862 * 12 53 13.13923 12 50 18.86508 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 15.225392 0.31 1228+126 12 40 01.74901 * 12 23 28.04383 12 20 34.18272 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 37.256080 0.20 1253-055 -05 31 07.99586 *-05 47 21.52472 -05 50 06.97088 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 122.5 OJ287 174.6 M84 124.0 3C274 122.5 3C279 110.6 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