COVER INFORMATION Station: DSS63 (Code Ro ) Experiment: vhs1256-1257 -Epoch 3 Exp. Code: EG092C Schedule Version: 2.00 Processed by SCHED version: 11.40 Release 11.4. March 14, 2015 PI: Jose C. Guirado Address: Dpto. Astronomia, Univ. Valencia Dr. Moliner 50 E-46100 Burjassot Valencia, Spain Phone: +34 963543078 EMAIL: Jose.C.Guirado@uv.es Fax: +34 963543084 Phone during observation: +34 963543078, +34629509130 Observing mode: Phase-referencing at 18cm (1024 Mb/s) Notes: Dual Pol Schedule for DSS63 (Code Ro ) Page 2 vhs1256-1257 -Epoch 3 UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Wed 2 Nov 2016 Day 307 --- Next scan frequencies: 1610.49 1610.49 1610.49 1610.49 1642.49 1642.49 1642.49 1642.49 1674.49 1674.49 1674.49 1674.49 1706.49 1706.49 1706.49 1706.49 Next BBC frequencies: 230.49 230.49 230.49 230.49 262.49 262.49 262.49 262.49 294.49 294.49 294.49 294.49 326.49 326.49 326.49 326.49 Next scan bandwidths: 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 05 00 00 4C39.25 07 30 38 67.5 444.1 -2.0 -76.9 0 0 05 00 00 05 04 00 --- 07 34 38 68.2 444.6 -1.9 -77.1 240 31 05 00 04 05 04 30 4C39.25 07 35 08 68.3 444.7 -1.9 -77.1 20 31 05 04 30 05 07 40 --- 07 38 19 68.9 445.0 -1.8 -77.2 190 55 05 04 34 05 08 10 4C39.25 07 38 49 69.0 445.1 -1.8 -77.3 20 55 05 08 10 05 12 10 --- 07 42 50 69.8 445.6 -1.8 -77.4 240 86 05 08 14 06 15 26 J1303-1051 08 46 16 11.5 475.3 -4.3 -44.5 3530 86 06 15 26 06 17 06 =1300-105 08 47 56 11.8 475.6 -4.3 -44.4 100 99 06 15 30 06 17 06 VHS1256 08 47 56 11.5 478.4 -4.1 -43.4 -22 99 No stop 06 20 46 --- 08 51 37 12.1 479.1 -4.1 -43.1 198 127 06 17 10 06 20 46 J1254-1317 08 51 37 12.1 479.6 -4.1 -42.9 -13 127 No stop 06 22 26 =1251-130 08 53 17 12.4 479.9 -4.0 -42.7 87 140 06 20 50 06 23 06 J1303-1051 08 53 57 12.8 476.7 -4.2 -43.8 16 140 06 23 06 06 24 46 =1300-105 08 55 37 13.1 477.0 -4.1 -43.7 100 152 06 23 10 06 24 46 VHS1256 08 55 37 12.8 479.8 -4.0 -42.7 -22 152 No stop 06 28 26 --- 08 59 18 13.4 480.5 -4.0 -42.3 198 180 06 24 50 06 28 26 J1254-1317 08 59 18 13.4 481.0 -3.9 -42.1 -13 180 No stop 06 30 06 =1251-130 09 00 58 13.6 481.3 -3.9 -42.0 87 193 06 28 30 06 30 46 J1303-1051 09 01 38 14.1 478.1 -4.0 -43.1 16 193 06 30 46 06 32 26 =1300-105 09 03 19 14.4 478.4 -4.0 -43.0 100 206 06 30 50 06 32 26 VHS1256 09 03 19 14.0 481.2 -3.9 -41.9 -22 206 No stop 06 36 06 --- 09 06 59 14.6 481.9 -3.8 -41.5 198 234 06 32 30 06 36 06 J1254-1317 09 06 59 14.6 482.4 -3.8 -41.3 -13 234 No stop 06 37 46 =1251-130 09 08 40 14.9 482.7 -3.8 -41.2 87 247 06 36 10 06 38 26 J1303-1051 09 09 20 15.4 479.5 -3.9 -42.4 16 247 06 38 26 06 40 06 =1300-105 09 11 00 15.7 479.9 -3.9 -42.3 100 260 06 38 30 Schedule for DSS63 (Code Ro ) Page 3 vhs1256-1257 -Epoch 3 UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Wed 2 Nov 2016 Day 307 --- 06 40 06 VHS1256 09 11 00 15.3 482.7 -3.8 -41.1 -22 260 No stop 06 43 46 --- 09 14 41 15.8 483.4 -3.7 -40.7 198 288 06 40 10 06 43 46 J1254-1317 09 14 41 15.8 483.9 -3.7 -40.5 -13 288 No stop 06 45 26 =1251-130 09 16 21 16.1 484.2 -3.7 -40.3 87 301 06 43 50 06 46 06 J1303-1051 09 17 01 16.6 481.0 -3.8 -41.6 16 301 06 46 06 06 47 46 =1300-105 09 18 41 16.9 481.3 -3.8 -41.5 100 314 06 46 10 06 47 46 VHS1256 09 18 41 16.5 484.1 -3.6 -40.3 -22 314 No stop 06 51 26 --- 09 22 22 17.1 484.9 -3.6 -39.9 198 342 06 47 50 06 51 26 J1254-1317 09 22 22 17.0 485.4 -3.6 -39.6 -13 342 No stop 06 53 06 =1251-130 09 24 02 17.3 485.7 -3.5 -39.4 87 355 06 51 30 06 53 06 J1303-1051 09 24 02 17.8 482.4 -3.7 -40.9 -24 355 No stop 06 54 46 =1300-105 09 25 42 18.1 482.7 -3.6 -40.7 76 367 06 53 10 06 54 46 VHS1256 09 25 42 17.6 485.5 -3.5 -39.5 -22 367 No stop 06 58 26 --- 09 29 23 18.1 486.2 -3.5 -39.1 198 396 06 54 50 06 58 26 J1254-1317 09 29 23 18.1 486.8 -3.4 -38.8 -13 396 No stop 07 00 06 =1251-130 09 31 03 18.4 487.1 -3.4 -38.6 87 408 06 58 30 07 00 46 J1303-1051 09 31 43 19.0 483.9 -3.5 -40.1 16 408 07 00 46 07 02 26 =1300-105 09 33 24 19.3 484.2 -3.5 -39.9 100 421 07 00 50 07 02 26 VHS1256 09 33 24 18.8 487.0 -3.4 -38.6 -22 421 No stop 07 06 06 --- 09 37 04 19.3 487.8 -3.3 -38.1 198 449 07 02 30 07 06 06 J1254-1317 09 37 04 19.3 488.3 -3.3 -37.9 -13 449 No stop 07 07 46 =1251-130 09 38 44 19.5 488.7 -3.3 -37.7 87 462 07 06 10 07 07 46 J1303-1051 09 38 44 20.1 485.3 -3.4 -39.3 -24 462 No stop 07 09 26 =1300-105 09 40 25 20.4 485.6 -3.4 -39.1 76 475 07 07 50 07 09 26 VHS1256 09 40 25 19.8 488.5 -3.3 -37.7 -22 475 No stop 07 13 06 --- 09 44 05 20.4 489.2 -3.2 -37.2 198 503 07 09 30 07 13 06 J1254-1317 09 44 05 20.3 489.8 -3.2 -37.0 -13 503 No stop 07 14 46 =1251-130 09 45 46 20.6 490.1 -3.2 -36.8 87 516 07 13 10 07 15 26 J1303-1051 09 46 26 21.3 486.8 -3.3 -38.3 16 516 07 15 26 07 17 06 =1300-105 09 48 06 21.5 487.2 -3.3 -38.1 100 529 07 15 30 Schedule for DSS63 (Code Ro ) Page 4 vhs1256-1257 -Epoch 3 UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Wed 2 Nov 2016 Day 307 --- 07 17 06 VHS1256 09 48 06 20.9 490.1 -3.1 -36.7 -22 529 No stop 07 20 46 --- 09 51 47 21.5 490.8 -3.1 -36.2 198 557 07 17 10 07 20 46 J1254-1317 09 51 47 21.4 491.4 -3.1 -36.0 -13 557 No stop 07 22 26 =1251-130 09 53 27 21.7 491.7 -3.0 -35.7 87 570 07 20 50 07 22 26 J1303-1051 09 53 27 22.4 488.3 -3.2 -37.5 -24 570 No stop 07 24 06 =1300-105 09 55 07 22.6 488.7 -3.1 -37.3 76 582 07 22 30 07 24 06 VHS1256 09 55 07 22.0 491.5 -3.0 -35.8 -22 582 No stop 07 27 46 --- 09 58 48 22.5 492.3 -3.0 -35.3 198 611 07 24 10 07 27 46 J1254-1317 09 58 48 22.4 492.9 -2.9 -35.0 -13 611 No stop 07 29 26 =1251-130 10 00 28 22.7 493.2 -2.9 -34.8 87 623 07 27 50 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess316.L1024 Matching groups in /home/guest/rmc/SCHED/sched11.4/catalogs/freq.dat: ro18cm LO from Harbison, e-mail 20/03/97. other values guesses ****** Only 200.00 of 256.00 MHz total bandwidth is within the IFs in the setup file before any FREQ or DOPPLER shifts. Setup group: 3 Station: DSS63 Total bit rate: 1024 Format: MKIV1:2 Bits per sample: 2 Sample rate: 32.000 Number of channels: 16 DBE type: Speedup factor: 0.50 Disk used to record data. 1st LO= 1380.00 1380.00 1380.00 1380.00 1380.00 1380.00 1380.00 1380.00 1380.00 1380.00 1380.00 1380.00 1380.00 1380.00 1380.00 1380.00 Net SB= L L U U L L U U L L U U L L U U IF SB = U U U U U U U U U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP BBC = 2 1 2 1 4 3 4 3 6 5 6 5 8 7 8 7 BBC SB= L L U U L L U U L L U U L L U U IF = 2N 1N 2N 1N 2N 1N 2N 1N 2N 1N 2N 1N 2N 1N 2N 1N The following frequency sets based on these setups were used. Frequency Set: 11 Setup file default. Used with PCAL = off LO sum= 1610.49 1610.49 1610.49 1610.49 1642.49 1642.49 1642.49 1642.49 1674.49 1674.49 1674.49 1674.49 1706.49 1706.49 1706.49 1706.49 BBC fr= 230.49 230.49 230.49 230.49 262.49 262.49 262.49 262.49 294.49 294.49 294.49 294.49 326.49 326.49 326.49 326.49 Bandwd= 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 Matching frequency sets: 11 Track assignments are: track1= 2, 10, 18, 26, 3, 11, 19, 27, 66, 74, 82, 90, 67, 75, 83, 91 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * VHS1256 12 53 24.456272 * 12 56 01.818400 12 56 53.316305 0.00 -12 41 11.49359 *-12 57 25.24400 -13 02 39.10815 0.00 From catalog imbedded in main SCHED input file. * 4C39.25 09 23 55.319215 * 09 27 03.013936 09 28 04.826146 0.30 J0927+3902 39 15 23.56645 * 39 02 20.85186 38 57 45.03840 0.16 0923+392 /home/guest/rmc/SCHED/sched11.4/catalogs/sources.gsfc J0927+39 GSFC 2015a astro solution, unpublished 245753 observations. 1251-130 12 51 54.110022 * 12 54 31.468276 12 55 22.972021 0.20 * J1254-1317 -13 01 00.92342 *-13 17 16.21192 -13 22 30.58811 0.48 /home/guest/rmc/SCHED/sched11.4/catalogs/sources.gsfc GSFC 2015a astro solution, unpublished 113 observations. 1300-105 13 00 36.725057 * 13 03 13.867950 13 04 05.254359 0.06 * J1303-1051 -10 35 11.31965 *-10 51 17.12968 -10 56 28.41058 0.13 /home/guest/rmc/SCHED/sched11.4/catalogs/sources.gsfc GSFC 2015a astro solution, unpublished 247 observations. * 1424+366 14 24 32.676820 * 14 26 37.087501 14 27 16.595579 0.03 J1426+3625 36 38 36.02432 * 36 25 09.57362 36 20 50.50364 0.03 /home/guest/rmc/SCHED/sched11.4/catalogs/sources.gsfc GSFC 2015a astro solution, unpublished 1287 observations. SOURCE SCAN SUMMARY FOR SOURCES LISTED ABOVE Scan hours are for recording scans only. Baseline hours are only counted for scans above horizon at both ends. Source Setup file Frequency sets Observing hours (duplicates not shown) Scan Baseline VHS1256 sess316.L1024 1 2 3 4 5 6 7 8 9 10 11 12 3.728 105.428 4C39.25 sess316.L1024 1 2 3 4 5 6 7 8 9 10 11 12 0.186 12.283 J1254-1317 sess316.L1024 1 2 3 4 5 6 7 8 9 10 11 12 1.694 45.398 J1303-1051 sess316.L1024 1 2 3 4 5 6 7 8 9 10 11 12 1.694 49.188 1424+366 sess316.L1024 1 2 3 4 5 8 9 10 12 0.067 2.400 EFFECT OF SOLAR CORONA 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) VHS1256 23.1 4C39.25 88.8 J1254-1317 23.4 J1303-1051 21.7 1424+366 51.3 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