COVER INFORMATION Station: DSS63 (Code Ro ) Experiment: Long overdue - Measuring the Parallax and proper motion of the Crab. Ste Exp. Code: EK036D Schedule Version: 3.00 Processed by SCHED version: 11.40 Release 11.4. March 14, 2015 PI: Franz Kirsten Address: Curtin Institute of Radio Astronomy Curtin University Perth Australia Phone: +61 8 9266 9103 EMAIL: franz.kirsten@curtin.edu.au Fax: +61 8 9266 9246 Phone during observation: +61 8 9266 9103 Observing mode: Continuum 18cm (1 Gb/s), pulsar gating Notes: Target pulsar bright enough to fringe on Fringe finder / bandpass cal: J0518+2054 / J0530+1331 PCAL off, AGC off at all stations Ef, T6, DSS63 require extra attenuator due to high Tsys from Nebula. Schedule for DSS63 (Code Ro ) Page 2 Long overdue - Measuring the Parallax and proper motion of the Crab. Ste 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 ---------------------------------------------------------------------------------------- --- Sun 28 May 2017 Day 148 --- 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 09 30 00 J0530+1331 01 37 29 32.5 460.3 -3.9 -50.4 0 0 09 30 00 09 34 00 =0528+134 01 41 30 33.3 461.0 -3.8 -50.2 240 31 09 30 04 09 34 54 J0518+2054 01 42 24 40.4 456.2 -3.6 -54.1 15 31 09 34 54 09 36 09 =0515+208 01 43 49 40.6 456.5 -3.6 -54.1 75 40 09 34 58 09 36 45 CRAB 01 44 15 38.2 452.5 -3.9 -55.1 9 40 09 36 45 09 42 15 --- 01 49 46 39.3 453.5 -3.8 -55.0 330 83 09 36 49 09 43 02 J0518+2054 01 50 33 41.9 457.7 -3.5 -53.9 20 83 09 43 02 09 44 17 =0515+208 01 51 58 42.2 458.0 -3.5 -53.8 75 92 09 43 06 09 44 53 CRAB 01 52 25 39.8 453.9 -3.7 -55.0 9 92 09 44 53 09 50 23 --- 01 57 56 40.8 454.9 -3.6 -54.9 330 134 09 44 57 09 51 11 J0518+2054 01 58 43 43.5 459.3 -3.3 -53.5 20 134 09 51 11 09 52 26 =0515+208 02 00 08 43.7 459.5 -3.3 -53.5 75 144 09 51 15 09 53 02 CRAB 02 00 35 41.3 455.4 -3.6 -54.8 9 144 09 53 02 09 58 32 --- 02 06 06 42.4 456.4 -3.5 -54.7 330 186 09 53 06 09 59 20 J0518+2054 02 06 54 45.0 460.8 -3.2 -53.2 20 186 09 59 20 10 00 35 =0515+208 02 08 19 45.3 461.1 -3.2 -53.1 75 196 09 59 24 10 01 12 CRAB 02 08 46 42.9 456.8 -3.4 -54.6 9 196 10 01 12 10 06 42 --- 02 14 17 43.9 457.9 -3.4 -54.4 330 238 10 01 16 10 07 31 J0518+2054 02 15 06 46.5 462.5 -3.1 -52.7 19 238 10 07 31 10 08 46 =0515+208 02 16 31 46.8 462.8 -3.0 -52.6 75 248 10 07 35 10 09 23 CRAB 02 16 58 44.4 458.4 -3.3 -54.3 9 248 10 09 23 10 14 53 --- 02 22 29 45.5 459.4 -3.2 -54.1 330 290 10 09 27 10 15 42 J0518+2054 02 23 18 48.0 464.2 -2.9 -52.2 19 290 10 15 42 10 16 57 =0515+208 02 24 43 48.3 464.5 -2.9 -52.1 75 300 10 15 46 10 17 34 CRAB 02 25 11 46.0 459.9 -3.2 -54.0 9 300 10 17 34 10 23 04 --- 02 30 42 47.0 461.0 -3.1 -53.7 330 342 10 17 38 Schedule for DSS63 (Code Ro ) Page 3 Long overdue - Measuring the Parallax and proper motion of the Crab. Ste 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 ---------------------------------------------------------------------------------------- --- Sun 28 May 2017 Day 148 --- 10 23 53 J0518+2054 02 31 31 49.5 466.0 -2.8 -51.6 19 342 10 23 53 10 25 08 =0515+208 02 32 56 49.8 466.3 -2.8 -51.4 75 351 10 23 57 10 25 47 CRAB 02 33 25 47.5 461.6 -3.0 -53.5 8 351 10 25 47 10 31 17 --- 02 38 56 48.5 462.7 -2.9 -53.2 330 394 10 25 51 10 32 06 J0518+2054 02 39 45 51.0 467.9 -2.7 -50.8 19 394 10 32 06 10 33 21 =0515+208 02 41 11 51.3 468.2 -2.6 -50.7 75 403 10 32 10 10 34 00 CRAB 02 41 39 49.0 463.3 -2.9 -53.0 8 403 10 34 00 10 39 30 --- 02 47 10 50.1 464.5 -2.8 -52.6 330 445 10 34 04 10 40 29 J0530+1331 02 48 09 45.3 475.1 -2.7 -45.2 6 445 10 40 29 10 43 19 =0528+134 02 51 10 45.8 475.8 -2.7 -44.8 170 467 10 40 33 10 44 13 J0518+2054 02 51 54 53.2 470.9 -2.5 -49.6 14 467 10 44 13 10 45 28 =0515+208 02 53 19 53.5 471.2 -2.4 -49.4 75 477 10 44 17 10 46 07 CRAB 02 53 48 51.3 466.0 -2.7 -52.1 7 477 10 46 07 10 51 32 --- 02 59 14 52.3 467.2 -2.6 -51.6 325 518 10 46 11 10 52 23 J0518+2054 03 00 05 54.7 473.0 -2.3 -48.6 18 518 10 52 23 10 53 38 =0515+208 03 01 30 54.9 473.4 -2.3 -48.4 75 528 10 52 27 10 54 17 CRAB 03 02 00 52.8 467.9 -2.6 -51.4 7 528 10 54 17 10 59 42 --- 03 07 26 53.8 469.2 -2.5 -50.8 325 570 10 54 21 11 00 34 J0518+2054 03 08 17 56.1 475.2 -2.2 -47.5 17 570 11 00 34 11 01 49 =0515+208 03 09 43 56.3 475.6 -2.2 -47.3 75 579 11 00 38 11 02 29 CRAB 03 10 13 54.3 469.9 -2.4 -50.5 6 579 11 02 29 11 07 54 --- 03 15 39 55.2 471.3 -2.3 -49.9 325 621 11 02 33 11 08 46 J0518+2054 03 16 31 57.5 477.6 -2.0 -46.2 16 621 11 08 46 11 10 01 =0515+208 03 17 56 57.7 478.1 -2.0 -46.0 75 630 11 08 50 11 10 41 CRAB 03 18 27 55.7 472.0 -2.3 -49.6 6 630 11 10 41 11 16 06 --- 03 23 52 56.7 473.5 -2.2 -48.8 325 672 11 10 45 11 16 58 J0518+2054 03 24 45 58.9 480.2 -1.9 -44.8 15 672 11 16 58 11 18 13 =0515+208 03 26 10 59.1 480.7 -1.9 -44.5 75 682 11 17 02 11 18 55 CRAB 03 26 41 57.2 474.3 -2.1 -48.4 5 682 11 18 55 11 24 20 --- 03 32 07 58.1 475.9 -2.1 -47.6 325 723 11 18 59 Schedule for DSS63 (Code Ro ) Page 4 Long overdue - Measuring the Parallax and proper motion of the Crab. Ste 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 ---------------------------------------------------------------------------------------- --- Sun 28 May 2017 Day 148 --- 11 25 12 J0518+2054 03 33 00 60.2 482.9 -1.8 -43.2 14 723 11 25 12 11 26 27 =0515+208 03 34 25 60.4 483.4 -1.7 -42.9 75 733 11 25 16 11 27 09 CRAB 03 34 57 58.6 476.7 -2.0 -47.2 4 733 11 27 09 11 32 34 --- 03 40 23 59.5 478.4 -1.9 -46.2 325 774 11 27 13 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess217.L1024 Matching groups in /home/guest/rmc/SCHED/sched11.4/catalogs/freq_RDBE.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: 5 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: 9 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: 9 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) * CRAB 05 31 31.388685 * 05 34 31.934000 05 35 32.725126 0.00 21 58 54.53487 * 22 00 52.19100 22 01 20.36697 0.00 From catalog imbedded in main SCHED input file. 0515+208 05 15 05.041798 * 05 18 03.824513 05 19 04.020525 0.02 * J0518+2054 20 51 43.76307 * 20 54 52.49736 20 55 44.66304 0.03 /home/guest/rmc/SCHED/sched11.4/catalogs/sources.gsfc GSFC 2015a astro solution, unpublished 1774 observations. 0528+134 05 28 06.759216 * 05 30 56.416747 05 31 53.508504 0.21 * J0530+1331 13 29 42.28885 * 13 31 55.14952 13 32 27.78037 0.24 J0530+13 /home/guest/rmc/SCHED/sched11.4/catalogs/sources.gsfc GSFC 2015a astro solution, unpublished 135789 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 CRAB sess217.L1024 1 2 3 4 5 6 9 10 11 12 13 1 + 1.275 114.582 J0518+2054 sess217.L1024 1 2 3 4 5 6 9 10 11 12 13 1 + 0.292 25.729 J0530+1331 sess217.L1024 1 2 3 4 5 6 9 10 11 12 13 1 + 0.114 10.364 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) CRAB 17.1 J0518+2054 13.3 J0530+1331 18.5 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