COVER INFORMATION Station: VLBA_PT (Code Pt ) Experiment: bw082 M87 movie pilot. Walker, Ly, Junor, Hardee Exp. Code: bw082a Schedule Version: 1.00 Processed by SCHED version: 6.04 March 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 6 session project samples different possible frame rates for a 7mm movie of M87. It is needed prior to full movie observations because the rate of changes near the core is not known. It is likely that they have been severly undersampled by previous observations. Each session will use the same schedule. The sessions should fall in the following windows (days) after the first: 0, 3, 6, 12-16, 31-39, 80-100. The program committee has asked me to coordinate with Phillip Hicks on the scheduling. I will do so. I propose to use long range forcasts to identify a 6 day window in which to start, and then, at 12, 31, and 80 days, identify a day within the 5, 9, and 21 day windows that follow in which to do a session. Here is the key information from the time allocation email: ------------------ PROPOSAL STATUS ( 01/06/05 ): Approved for dynamic scheduling, high priority Proposal Selection Committee - December 3, 2004: We ask Phillip Hicks to seek permission from Craig Walker before starting the observing sequence, rather than having Phillip be responsible for making the long-term weather forecast. CURRENT TIME ALLOCATION: 6 times 10.0 hrs dynamically scheduled centered at LST 12.5 with 128 Mbits/sec recording --------------------- I apologize for the long delay in starting this project, but it will take my attention once started and, for personal reasons, I did not feel I was in a position to provide that over the last year. ------------------------------------------------------------------------- Schedule for VLBA_PT (Code Pt ) Page 2 bw082 M87 movie pilot. 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 8 Apr 2006 Day 98 --- Next scan frequencies: 43127.49 43127.49 43135.49 43135.49 Next BBC frequencies: 727.49 727.49 735.49 735.49 Next scan bandwidths: 8.00 8.00 8.00 8.00 01 37 45 OJ287 07 30 00 66.4 121.5 -1.4 -48.6 0 1 1 0 01 37 15 01 45 44 --- 07 38 00 67.8 124.8 -1.3 -46.2 479 F 1 3391 01 37 28 01 47 48 3C274 07 40 04 21.1 89.2 -4.9 -57.7 25 1 1 3391 01 47 18 02 02 45 --- 07 55 04 24.2 91.3 -4.6 -57.7 898 F 1 9575 01 47 31 02 03 28 3C279 07 55 47 8.8 103.3 -5.0 -53.9 6 1 1 9575 02 02 45 02 05 28 --- 07 57 47 9.2 103.6 -5.0 -53.8 120 F 1 10659 02 02 45 02 06 11 3C274 07 58 31 24.9 91.8 -4.5 -57.7 6 1 1 10659 02 05 28 02 21 09 --- 08 13 31 28.0 94.0 -4.3 -57.5 898 F 1 16933 02 05 28 02 21 52 3C279 08 14 15 12.5 106.1 -4.7 -52.9 7 1 2 16933 02 21 09 02 23 52 --- 08 16 15 12.9 106.4 -4.7 -52.8 120 R 1 17179 02 21 09 02 24 36 3C274 08 16 59 28.7 94.5 -4.2 -57.5 6 1 2 17179 02 23 52 02 39 34 --- 08 31 59 31.8 96.8 -4.0 -57.1 898 R 1 10903 02 23 52 02 40 18 3C279 08 32 43 16.1 109.0 -4.4 -51.7 7 1 2 10903 02 39 34 02 42 17 --- 08 34 43 16.5 109.3 -4.4 -51.6 120 R 1 9812 02 39 34 02 43 02 3C274 08 35 27 32.5 97.3 -3.9 -57.0 6 1 2 9812 02 42 17 02 57 59 --- 08 50 27 35.5 99.7 -3.7 -56.5 898 R 1 3533 02 42 17 02 58 43 3C279 08 51 12 19.7 112.0 -4.1 -50.3 7 1 2 3533 02 57 59 03 00 43 --- 08 53 12 20.1 112.3 -4.1 -50.2 120 R 1 2441 02 57 59 03 01 27 3C274 08 53 56 36.3 100.3 -3.6 -56.3 6 1 3 2441 03 00 43 03 16 25 --- 09 08 56 39.3 102.9 -3.4 -55.5 898 F 1 3840 03 00 43 03 17 09 3C279 09 09 41 23.2 115.2 -3.8 -48.7 6 1 3 3840 03 16 25 03 19 09 --- 09 11 41 23.6 115.6 -3.7 -48.5 120 F 1 4933 03 16 25 03 19 54 3C274 09 12 25 40.0 103.5 -3.3 -55.3 6 1 3 4933 03 19 09 03 34 51 --- 09 27 25 43.0 106.4 -3.1 -54.2 898 F 1 11214 03 19 09 03 35 36 3C279 09 28 10 26.6 118.6 -3.5 -46.8 6 1 3 11214 03 34 51 03 37 35 --- 09 30 10 27.0 119.0 -3.4 -46.6 120 F 1 12308 03 34 51 Schedule for VLBA_PT (Code Pt ) Page 3 bw082 M87 movie pilot. 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 8 Apr 2006 Day 98 --- 03 38 20 3C274 09 30 55 43.7 107.1 -3.0 -53.9 5 1 4 12308 03 37 35 03 53 17 --- 09 45 55 46.6 110.2 -2.8 -52.5 898 R 1 16611 03 37 35 03 54 01 3C279 09 46 39 29.9 122.3 -3.2 -44.6 4 1 4 16611 03 53 17 03 56 01 --- 09 48 39 30.2 122.7 -3.1 -44.3 120 R 1 15521 03 53 17 03 58 01 OJ287 09 50 39 71.2 224.4 0.9 38.0 32 1 4 15521 03 57 31 04 03 00 --- 09 55 39 70.5 227.1 1.0 40.1 299 R 1 13327 03 57 44 04 04 50 J1159+2914 09 57 29 63.6 92.6 -2.0 -71.0 15 1 4 13327 04 04 20 04 09 49 =1156+295 10 02 29 64.6 93.4 -2.0 -70.9 299 R 1 11132 04 04 33 04 10 51 3C274 10 03 31 50.0 114.2 -2.5 -50.5 26 1 4 11132 04 10 21 04 25 48 --- 10 18 31 52.8 118.0 -2.2 -48.3 898 R 1 4949 04 10 34 04 26 33 3C279 10 19 15 35.4 129.4 -2.6 -39.9 3 1 4 4949 04 25 48 04 28 32 --- 10 21 15 35.7 129.9 -2.6 -39.6 120 R 1 3855 04 25 48 04 29 17 3C274 10 22 00 53.4 118.9 -2.2 -47.7 3 1 5 3855 04 28 32 04 44 14 --- 10 37 00 56.0 123.3 -1.9 -45.0 898 F 1 2425 04 28 32 04 44 59 3C279 10 37 44 38.2 133.9 -2.3 -36.8 3 1 5 2425 04 44 14 04 46 58 --- 10 39 44 38.5 134.4 -2.3 -36.4 120 F 1 3519 04 44 14 04 47 43 3C274 10 40 29 56.6 124.4 -1.8 -44.2 2 1 5 3519 04 46 58 05 02 40 --- 10 55 29 59.1 129.5 -1.6 -40.7 898 F 1 9800 04 46 58 05 03 25 3C279 10 56 13 40.8 138.8 -2.0 -33.2 2 1 5 9800 05 02 40 05 05 24 --- 10 58 13 41.1 139.3 -2.0 -32.8 120 F 1 10892 05 02 40 05 06 08 3C274 10 58 58 59.7 130.8 -1.5 -39.8 1 1 5 10892 05 05 24 05 21 06 --- 11 13 58 61.9 136.7 -1.3 -35.4 898 F 1 17170 05 05 24 05 21 50 3C279 11 14 42 43.2 144.1 -1.7 -29.2 0 1 6 17170 05 21 06 05 23 50 --- 11 16 42 43.5 144.7 -1.7 -28.7 120 R 1 16080 05 21 06 05 24 34 3C274 11 17 26 62.4 138.2 -1.2 -34.3 0 1 6 16080 05 23 50 05 39 31 --- 11 32 26 64.3 145.2 -1.0 -28.9 898 R 1 9801 05 23 50 05 40 16 3C279 11 33 10 45.3 149.8 -1.4 -24.7 0 1 6 9801 05 39 31 05 42 15 --- 11 35 10 45.5 150.4 -1.4 -24.2 120 R 1 8708 05 39 31 Schedule for VLBA_PT (Code Pt ) Page 4 bw082 M87 movie pilot. 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 8 Apr 2006 Day 98 --- 05 43 00 3C274 11 35 55 64.7 146.9 -0.9 -27.5 0 1 6 8708 05 42 15 05 57 57 --- 11 50 55 66.2 155.0 -0.7 -21.0 898 R 1 2427 05 42 15 05 58 42 3C279 11 51 40 47.0 155.9 -1.1 -19.8 0 1 6 2427 05 57 57 06 00 41 --- 11 53 40 47.2 156.6 -1.0 -19.2 120 R 1 1334 05 57 57 06 01 26 3C274 11 54 24 66.5 157.0 -0.6 -19.3 0 1 7 1334 06 00 41 06 16 24 --- 12 09 24 67.5 166.0 -0.4 -11.8 898 F 1 4947 06 00 41 06 17 08 3C279 12 10 09 48.4 162.5 -0.8 -14.5 0 1 7 4947 06 16 24 06 19 08 --- 12 12 09 48.5 163.2 -0.7 -13.9 120 F 1 6041 06 16 24 06 21 07 J1159+2914 12 14 09 84.1 211.7 0.2 29.9 43 1 7 6041 06 20 37 06 26 07 =1156+295 12 19 09 83.5 220.1 0.3 37.6 299 F 1 8235 06 20 50 06 28 08 J1310+3220 12 21 10 79.4 97.4 -0.8 -75.8 33 1 7 8235 06 27 38 06 33 07 =1308+326 12 26 10 80.5 98.9 -0.7 -74.9 299 F 1 10430 06 27 51 06 35 54 3C274 12 28 58 68.0 178.6 0.0 -1.2 108 1 7 10430 06 35 24 06 50 51 --- 12 43 58 67.9 188.3 0.2 7.0 898 F 1 16614 06 35 37 06 51 35 3C279 12 44 42 49.8 175.4 -0.2 -3.8 2 1 8 16614 06 50 51 06 53 35 --- 12 46 42 49.8 176.2 -0.2 -3.1 120 R 1 17494 06 50 51 06 54 19 3C274 12 47 26 67.7 190.5 0.3 8.9 2 1 8 17494 06 53 35 07 09 17 --- 13 02 26 66.9 199.8 0.5 16.7 898 R 1 11215 06 53 35 07 10 01 3C279 13 03 10 49.8 182.6 0.1 2.1 3 1 8 11215 07 09 17 07 12 00 --- 13 05 10 49.8 183.3 0.1 2.8 120 R 1 10126 07 09 17 07 12 44 3C274 13 05 54 66.7 201.9 0.6 18.4 4 1 8 10126 07 12 00 07 27 41 --- 13 20 54 65.3 210.2 0.8 25.2 898 R 1 3852 07 12 00 07 28 24 3C279 13 21 37 49.4 189.6 0.4 8.0 5 1 8 3852 07 27 41 07 30 24 --- 13 23 37 49.4 190.4 0.5 8.6 120 R 1 2769 07 27 41 07 31 06 3C274 13 24 19 64.9 212.0 0.9 26.6 5 1 9 2769 07 30 24 07 46 04 --- 13 39 19 63.1 219.3 1.1 32.4 898 F 1 3499 07 30 24 07 46 46 3C279 13 40 01 48.6 196.5 0.7 13.6 7 1 9 3499 07 46 04 07 48 45 --- 13 42 01 48.5 197.2 0.8 14.2 120 F 1 4575 07 46 04 Schedule for VLBA_PT (Code Pt ) Page 5 bw082 M87 movie pilot. 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 8 Apr 2006 Day 98 --- 07 49 27 3C274 13 42 43 62.7 220.8 1.2 33.6 7 1 9 4575 07 48 45 08 04 25 --- 13 57 43 60.5 227.1 1.4 38.3 898 F 1 10836 07 48 45 08 05 05 3C279 13 58 24 47.3 203.0 1.0 19.0 8 1 9 10836 08 04 25 08 07 05 --- 14 00 24 47.1 203.7 1.1 19.5 120 F 1 11905 08 04 25 08 07 45 3C274 14 01 04 60.0 228.4 1.5 39.2 9 1 10 11905 08 07 05 08 22 43 --- 14 16 04 57.6 233.7 1.7 43.0 898 R 1 17042 08 07 05 08 23 22 3C279 14 16 44 45.6 209.2 1.3 23.9 9 1 10 17042 08 22 43 08 25 22 --- 14 18 44 45.4 209.8 1.4 24.4 120 R 1 15982 08 22 43 08 26 01 3C274 14 19 23 57.1 234.8 1.8 43.7 10 1 10 15982 08 25 22 08 40 58 --- 14 34 23 54.5 239.4 2.1 46.7 898 R 1 9739 08 25 22 08 41 37 3C279 14 35 02 43.6 214.9 1.6 28.4 11 1 10 9739 08 40 58 08 43 37 --- 14 37 02 43.4 215.5 1.7 28.9 120 R 1 8682 08 40 58 08 45 37 J1159+2914 14 39 02 56.0 272.6 2.7 71.0 76 1 10 8682 08 45 07 08 50 36 =1156+295 14 44 02 55.0 273.2 2.7 70.9 299 R 1 6487 08 45 20 08 51 13 J1310+3220 14 44 39 70.3 270.8 1.6 77.8 0 1 10 6487 08 50 36 08 56 12 =1308+326 14 49 39 69.3 271.4 1.6 77.7 299 R 1 4247 08 50 36 08 57 02 3C274 14 50 29 51.5 243.8 2.3 49.3 9 1 11 4247 08 56 32 09 11 59 --- 15 05 29 48.7 247.4 2.6 51.3 898 F 1 1936 08 56 45 09 12 42 3C279 15 06 12 39.5 223.7 2.2 35.0 18 1 11 1936 09 11 59 09 14 42 --- 15 08 12 39.2 224.3 2.2 35.4 120 F 1 3018 09 11 59 09 15 25 3C274 15 08 55 48.1 248.2 2.6 51.7 20 1 11 3018 09 14 42 09 30 23 --- 15 23 55 45.1 251.4 2.9 53.3 898 F 1 9291 09 14 42 09 31 07 3C279 15 24 39 36.8 228.4 2.5 38.4 22 1 11 9291 09 30 23 09 33 06 --- 15 26 39 36.5 228.9 2.5 38.7 120 F 1 10383 09 30 23 09 33 51 3C274 15 27 24 44.5 252.1 2.9 53.6 23 1 11 10383 09 33 06 09 48 49 --- 15 42 24 41.5 255.1 3.2 54.8 898 F 1 16664 09 33 06 09 49 32 3C279 15 43 08 33.8 232.7 2.8 41.4 22 1 12 16664 09 48 49 09 51 32 --- 15 45 08 33.5 233.2 2.8 41.7 120 R 1 17448 09 48 49 Schedule for VLBA_PT (Code Pt ) Page 6 bw082 M87 movie pilot. 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 8 Apr 2006 Day 98 --- 09 52 15 3C274 15 45 51 40.8 255.7 3.2 55.0 22 1 12 17448 09 51 32 10 07 12 --- 16 00 51 37.8 258.4 3.5 55.9 898 R 1 11176 09 51 32 10 07 52 3C279 16 01 31 30.7 236.7 3.1 44.0 19 1 12 11176 10 07 12 10 09 52 --- 16 03 31 30.4 237.1 3.1 44.2 120 R 1 10115 10 07 12 10 10 30 3C274 16 04 09 37.1 259.0 3.5 56.1 18 1 12 10115 10 09 52 10 25 28 --- 16 19 09 34.1 261.5 3.8 56.7 898 R 1 3875 10 09 52 10 26 04 3C279 16 19 45 27.5 240.4 3.4 46.2 16 1 12 3875 10 25 28 10 28 03 --- 16 21 45 27.2 240.8 3.4 46.4 120 R 1 2838 10 25 28 10 28 40 3C274 16 22 22 33.4 262.0 3.9 56.9 17 1 13 2838 10 28 03 10 43 37 --- 16 37 22 30.3 264.3 4.1 57.3 898 F 1 3390 10 28 03 10 44 14 3C279 16 37 59 24.2 243.8 3.7 48.2 17 1 13 3390 10 43 37 10 46 13 --- 16 39 59 23.8 244.2 3.7 48.4 120 F 1 4430 10 43 37 10 46 50 3C274 16 40 35 29.7 264.8 4.2 57.4 17 1 13 4430 10 46 13 11 01 48 --- 16 55 35 26.6 267.0 4.4 57.6 898 F 1 10658 10 46 13 11 02 23 3C279 16 56 10 20.8 247.0 4.0 49.9 16 1 13 10658 11 01 48 11 04 22 --- 16 58 10 20.4 247.4 4.0 50.0 120 F 1 11689 11 01 48 11 04 57 3C274 16 58 45 25.9 267.5 4.5 57.7 15 1 14 11689 11 04 22 11 19 55 --- 17 13 45 22.8 269.6 4.7 57.7 898 R 1 17295 11 04 22 11 20 27 3C279 17 14 18 17.3 250.1 4.3 51.3 14 1 14 17295 11 19 55 11 22 27 --- 17 16 18 16.9 250.4 4.3 51.5 120 R 1 16279 11 19 55 11 25 06 1726+455 17 18 58 78.7 367.8 -0.1 -170.8 30 1 14 16279 11 24 36 11 28 06 --- 17 21 58 78.7 365.1 -0.1 -174.0 180 R 1 14882 11 24 49 11 31 23 1751+288 17 25 16 81.8 130.1 -0.5 -46.2 35 1 14 14882 11 30 53 11 34 23 --- 17 28 16 82.2 133.4 -0.4 -43.2 180 R 1 13485 11 31 06 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: bw082.set Matches group v7mm_c8 in /home/arana/cwalker/sched/catalogs/freq.dat Setup group: 6 Station: VLBA_PT Total bit rate: 128 Format: VLBA1:4 Bits per sample: 2 Sample rate: 16.000 Number of channels: 4 Passes/head pos: 1 Speedup factor: 2.00 Tape used at high density at 80.000 ips. Time per pass is 44.00 minutes. 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: 6 Setup file default. Used pcal sets: 1 LO sum= 43127.49 43127.49 43135.49 43135.49 BBC fr= 727.49 727.49 735.49 735.49 Bandwd= 8.000 8.000 8.000 8.000 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 6510 6510 0 0 0 0 PCALFR2= 510 510 6510 6510 0 0 0 0 Track assignments are: track1= 2, 18, 3, 19 barrel=roll_auto SOURCE LIST -- bw082 M87 movie pilot. 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) J0854+2006 08 51 57.250618 * 08 54 48.874930 08 55 10.989287 0.21 0851+202 20 17 58.41741 * 20 06 30.64086 20 05 09.67465 0.40 J0854+2006 /home/arana/cwalker/sched/catalogs/sources.vlba J0854+20 VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro * OJ287 0.216 scan hours, 9.723 baseline hours above horizon. * J1159+2914 11 56 57.786209 * 11 59 31.833910 11 59 52.744463 0.23 1156+295 29 31 25.73874 * 29 14 43.82684 29 12 34.98941 0.40 J1159+29 /home/arana/cwalker/sched/catalogs/sources.vlba J1159+2914 VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro J1159+2914 0.249 scan hours, 11.219 baseline hours above horizon. J1230+1223 12 28 17.569279 * 12 30 49.423381 12 31 09.762255 0.31 1228+126 12 40 01.74901 * 12 23 28.04383 12 21 16.04731 0.20 * 3C274 /home/arana/cwalker/sched/catalogs/sources.vlba J1230+12 VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro J1230+1223 7.230 scan hours, 292.449 baseline hours above horizon. J1256-0547 12 53 35.831291 * 12 56 11.166559 12 56 31.752519 0.20 1253-055 -05 31 07.99586 *-05 47 21.52472 -05 49 32.98891 0.30 * 3C279 /home/arana/cwalker/sched/catalogs/sources.vlba J1256-05 VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro J1256-0547 0.964 scan hours, 36.334 baseline hours above horizon. * J1310+3220 13 08 07.560131 * 13 10 28.663850 13 10 48.118906 0.24 1308+326 32 36 40.23883 * 32 20 43.78290 32 18 35.34772 0.40 J1310+32 /home/arana/cwalker/sched/catalogs/sources.vlba J1310+3220 VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro J1310+3220 0.166 scan hours, 7.480 baseline hours above horizon. J1727+4530 17 26 01.198750 * 17 27 27.650804 17 27 39.330524 0.29 * 1726+455 45 33 04.55118 * 45 30 39.73133 45 29 55.12204 0.40 J1727+45 /home/arana/cwalker/sched/catalogs/sources.vlba J1727+4530 VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 0.050 scan hours, 2.244 baseline hours above horizon. J1753+2848 17 51 45.401869 * 17 53 42.473641 17 53 57.576149 0.23 * 1751+288 28 48 36.64959 * 28 48 04.93887 28 47 36.64878 0.40 J1753+28 /home/arana/cwalker/sched/catalogs/sources.vlba J1753+2848 VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 0.050 scan hours, 2.244 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) OJ287 112.3 J1159+2914 140.1 3C274 158.5 3C279 177.0 J1310+3220 140.5 1726+455 101.8 1751+288 102.4 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