COVER INFORMATION Station: WSTRBORK (Code Wb ) 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 WSTRBORK (Code Wb ) 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: 1626.49 1626.49 1626.49 1626.49 1690.49 1690.49 1690.49 1690.49 Next BBC frequencies: 379.49 379.49 379.49 379.49 443.49 443.49 443.49 443.49 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 09 30 00 J0530+1331 02 20 51 35.5 117.8 -3.2 0.0 0 0 09 30 00 09 34 00 =0528+134 02 24 52 36.0 118.8 -3.1 0.0 240 31 09 30 01 09 34 54 J0518+2054 02 25 46 44.0 117.0 -2.9 0.0 16 31 09 34 54 09 36 09 =0515+208 02 27 11 44.2 117.4 -2.9 0.0 75 40 09 34 55 09 36 45 CRAB 02 27 37 42.9 112.3 -3.1 0.0 9 40 09 36 45 09 42 15 --- 02 33 08 43.6 113.7 -3.0 0.0 330 83 09 36 46 09 43 02 J0518+2054 02 33 55 45.1 119.2 -2.8 0.0 20 83 09 43 02 09 44 17 =0515+208 02 35 20 45.3 119.6 -2.7 0.0 75 92 09 43 03 09 44 53 CRAB 02 35 47 44.0 114.4 -3.0 0.0 10 92 09 44 53 09 50 23 --- 02 41 18 44.8 115.9 -2.9 0.0 330 135 09 44 54 09 51 11 J0518+2054 02 42 05 46.1 121.5 -2.6 0.0 20 135 09 51 11 09 52 26 =0515+208 02 43 30 46.3 121.9 -2.6 0.0 75 144 09 51 12 09 53 02 CRAB 02 43 57 45.1 116.6 -2.9 0.0 10 144 09 53 02 09 58 32 --- 02 49 28 45.9 118.1 -2.8 0.0 330 187 09 53 03 09 59 20 J0518+2054 02 50 16 47.2 123.8 -2.5 0.0 21 187 09 59 20 10 00 35 =0515+208 02 51 41 47.4 124.2 -2.5 0.0 75 196 09 59 21 10 01 12 CRAB 02 52 08 46.2 118.8 -2.7 0.0 10 196 10 01 12 10 06 42 --- 02 57 39 46.9 120.3 -2.6 0.0 330 238 10 01 13 10 07 31 J0518+2054 02 58 28 48.2 126.2 -2.3 0.0 21 238 10 07 31 10 08 46 =0515+208 02 59 53 48.4 126.6 -2.3 0.0 75 248 10 07 32 10 09 23 CRAB 03 00 20 47.3 121.1 -2.6 0.0 11 248 10 09 23 10 14 53 --- 03 05 51 48.0 122.7 -2.5 0.0 330 290 10 09 24 10 15 42 J0518+2054 03 06 40 49.2 128.7 -2.2 0.0 22 290 10 15 42 10 16 57 =0515+208 03 08 05 49.3 129.1 -2.2 0.0 75 300 10 15 43 10 17 34 CRAB 03 08 33 48.3 123.5 -2.4 0.0 11 300 10 17 34 10 23 04 --- 03 14 04 49.0 125.1 -2.4 0.0 330 342 10 17 35 10 23 53 J0518+2054 03 14 53 50.1 131.3 -2.1 0.0 22 342 10 23 53 10 25 08 =0515+208 03 16 18 50.3 131.7 -2.0 0.0 75 352 10 23 54 Schedule for WSTRBORK (Code Wb ) 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 25 47 CRAB 03 16 47 49.4 125.9 -2.3 0.0 12 352 10 25 47 10 31 17 --- 03 22 18 50.0 127.6 -2.2 0.0 330 394 10 25 48 10 32 06 J0518+2054 03 23 07 51.0 134.0 -1.9 0.0 23 394 10 32 06 10 33 21 =0515+208 03 24 33 51.2 134.4 -1.9 0.0 75 404 10 32 07 10 34 00 CRAB 03 25 01 50.3 128.4 -2.2 0.0 12 404 10 34 00 10 39 30 --- 03 30 32 51.0 130.2 -2.1 0.0 330 446 10 34 01 10 40 29 J0530+1331 03 31 31 43.9 137.4 -2.0 0.0 18 446 10 40 29 10 43 19 =0528+134 03 34 32 44.3 138.3 -2.0 0.0 170 468 10 40 30 10 44 13 J0518+2054 03 35 16 52.3 138.0 -1.7 0.0 16 468 10 44 13 10 45 28 =0515+208 03 36 41 52.5 138.5 -1.7 0.0 75 478 10 44 14 10 46 07 CRAB 03 37 10 51.7 132.3 -2.0 0.0 13 478 10 46 07 10 51 32 --- 03 42 36 52.3 134.1 -1.9 0.0 325 519 10 46 08 10 52 23 J0518+2054 03 43 27 53.1 140.9 -1.6 0.0 24 519 10 52 23 10 53 38 =0515+208 03 44 52 53.3 141.4 -1.6 0.0 75 529 10 52 24 10 54 17 CRAB 03 45 22 52.6 135.1 -1.8 0.0 13 529 10 54 17 10 59 42 --- 03 50 48 53.2 136.9 -1.7 0.0 325 571 10 54 18 11 00 34 J0518+2054 03 51 39 53.9 143.9 -1.5 0.0 24 571 11 00 34 11 01 49 =0515+208 03 53 05 54.0 144.4 -1.4 0.0 75 580 11 00 35 11 02 29 CRAB 03 53 35 53.5 137.9 -1.7 0.0 14 580 11 02 29 11 07 54 --- 03 59 01 54.0 139.8 -1.6 0.0 325 622 11 02 30 11 08 46 J0518+2054 03 59 53 54.6 146.9 -1.3 0.0 25 622 11 08 46 11 10 01 =0515+208 04 01 18 54.7 147.5 -1.3 0.0 75 631 11 08 47 11 10 41 CRAB 04 01 49 54.3 140.8 -1.6 0.0 14 631 11 10 41 11 16 06 --- 04 07 15 54.8 142.8 -1.5 0.0 325 673 11 10 42 11 16 58 J0518+2054 04 08 07 55.2 150.1 -1.2 0.0 25 673 11 16 58 11 18 13 =0515+208 04 09 32 55.3 150.6 -1.2 0.0 75 683 11 16 59 11 18 55 CRAB 04 10 03 55.1 143.9 -1.4 0.0 14 683 11 18 55 11 24 20 --- 04 15 29 55.5 145.9 -1.3 0.0 325 724 11 18 56 11 25 12 J0518+2054 04 16 22 55.8 153.3 -1.0 0.0 26 724 11 25 12 11 26 27 =0515+208 04 17 47 55.9 153.9 -1.0 0.0 75 734 11 25 13 Schedule for WSTRBORK (Code Wb ) 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 27 09 CRAB 04 18 19 55.8 147.0 -1.3 0.0 15 734 11 27 09 11 32 34 --- 04 23 45 56.2 149.1 -1.2 0.0 325 776 11 27 10 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess217.L1024 --- WARNING --- This group does not match an entry in the frequency catalog. This might be ok because the catalog is not complete. But be very careful to be sure that the setup is correct. Setup group: 13 Station: WSTRBORK Total bit rate: 1024 Format: MARK5B Bits per sample: 2 Sample rate: 64.000 Number of channels: 8 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 1247.00 1247.00 1247.00 1247.00 1247.00 1247.00 1247.00 1247.00 Net SB= L L U U L L U U IF SB = U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 5 1 5 3 7 3 7 BBC SB= L L U U L L U U IF = A1 B1 A1 B1 A1 B1 A1 B1 The following frequency sets based on these setups were used. Frequency Set: 5 Setup file default. Used with PCAL = off LO sum= 1626.49 1626.49 1626.49 1626.49 1690.49 1690.49 1690.49 1690.49 BBC fr= 379.49 379.49 379.49 379.49 443.49 443.49 443.49 443.49 Bandwd= 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 Matching frequency sets: 5 Track assignments are: track1= 10, 14, 2, 6, 12, 16, 4, 8 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