COVER INFORMATION Station: WSTRBORK (Code Wb ) Experiment: Long overdue - Measuring the Parallax and proper motion of the Crab. Ste Exp. Code: EK036C Schedule Version: 1.00 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, Jb1, T6, Sr, Ro70 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 ---------------------------------------------------------------------------------------- --- Sat 25 Feb 2017 Day 56 --- 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 16 00 00 J0530+1331 02 49 12 39.2 125.2 -2.7 0.0 0 0 16 00 00 16 05 00 =0528+134 02 54 13 39.8 126.6 -2.6 0.0 300 38 16 00 01 16 05 40 J0518+2054 02 54 53 47.8 125.1 -2.4 0.0 2 38 16 05 40 16 07 10 =0515+208 02 56 23 47.9 125.6 -2.4 0.0 90 50 16 05 41 16 07 52 CRAB 02 57 05 46.9 120.2 -2.6 0.0 15 50 16 07 52 16 12 52 --- 03 02 06 47.5 121.6 -2.6 0.0 300 88 16 07 53 16 13 32 J0518+2054 03 02 46 48.7 127.5 -2.3 0.0 13 88 16 13 32 16 15 02 =0515+208 03 04 16 48.9 128.0 -2.2 0.0 90 100 16 13 33 16 15 44 CRAB 03 04 58 47.9 122.4 -2.5 0.0 15 100 16 15 44 16 20 44 --- 03 09 59 48.5 123.9 -2.4 0.0 300 138 16 15 45 16 21 24 J0518+2054 03 10 39 49.6 129.9 -2.1 0.0 13 138 16 21 24 16 22 54 =0515+208 03 12 10 49.8 130.4 -2.1 0.0 90 150 16 21 25 16 23 36 CRAB 03 12 52 48.9 124.7 -2.4 0.0 15 150 16 23 36 16 28 36 --- 03 17 53 49.5 126.2 -2.3 0.0 300 188 16 23 37 16 29 16 J0518+2054 03 18 33 50.5 132.5 -2.0 0.0 13 188 16 29 16 16 30 46 =0515+208 03 20 03 50.7 132.9 -2.0 0.0 90 200 16 29 17 16 31 28 CRAB 03 20 45 49.8 127.1 -2.2 0.0 15 200 16 31 28 16 36 28 --- 03 25 46 50.4 128.7 -2.2 0.0 300 238 16 31 29 16 37 08 J0518+2054 03 26 26 51.4 135.0 -1.9 0.0 13 238 16 37 08 16 38 38 =0515+208 03 27 56 51.6 135.5 -1.9 0.0 90 250 16 37 09 16 39 20 CRAB 03 28 38 50.8 129.6 -2.1 0.0 15 250 16 39 20 16 44 20 --- 03 33 39 51.3 131.2 -2.0 0.0 300 288 16 39 21 16 45 00 J0518+2054 03 34 19 52.2 137.7 -1.7 0.0 13 288 16 45 00 16 46 30 =0515+208 03 35 50 52.4 138.2 -1.7 0.0 90 300 16 45 01 16 47 12 CRAB 03 36 32 51.7 132.1 -2.0 0.0 15 300 16 47 12 16 52 12 --- 03 41 32 52.2 133.8 -1.9 0.0 300 338 16 47 13 16 53 02 J0530+1331 03 42 23 45.0 140.8 -1.8 0.0 9 338 16 53 02 16 57 02 =0528+134 03 46 23 45.4 142.0 -1.8 0.0 240 369 16 53 03 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 ---------------------------------------------------------------------------------------- --- Sat 25 Feb 2017 Day 56 --- 16 57 42 J0518+2054 03 47 03 53.5 142.2 -1.5 0.0 2 369 16 57 42 16 59 12 =0515+208 03 48 34 53.6 142.7 -1.5 0.0 90 381 16 57 43 16 59 54 CRAB 03 49 16 53.0 136.4 -1.8 0.0 15 381 16 59 54 17 04 54 --- 03 54 17 53.6 138.1 -1.7 0.0 300 419 16 59 55 17 05 34 J0518+2054 03 54 57 54.2 145.1 -1.4 0.0 13 419 17 05 34 17 07 04 =0515+208 03 56 27 54.3 145.6 -1.4 0.0 90 431 17 05 35 17 07 46 CRAB 03 57 09 53.8 139.1 -1.6 0.0 15 431 17 07 46 17 12 46 --- 04 02 10 54.3 140.9 -1.6 0.0 300 469 17 07 47 17 13 26 J0518+2054 04 02 50 54.8 148.0 -1.3 0.0 13 469 17 13 26 17 14 56 =0515+208 04 04 20 54.9 148.6 -1.2 0.0 90 481 17 13 27 17 15 38 CRAB 04 05 02 54.6 142.0 -1.5 0.0 15 481 17 15 38 17 20 38 --- 04 10 03 55.1 143.8 -1.4 0.0 300 519 17 15 39 17 21 18 J0518+2054 04 10 43 55.4 151.1 -1.1 0.0 13 519 17 21 18 17 22 48 =0515+208 04 12 13 55.5 151.7 -1.1 0.0 90 531 17 21 19 17 23 30 CRAB 04 12 56 55.3 144.9 -1.4 0.0 15 531 17 23 30 17 28 30 --- 04 17 56 55.7 146.8 -1.3 0.0 300 569 17 23 31 17 29 10 J0518+2054 04 18 37 56.0 154.2 -1.0 0.0 13 569 17 29 10 17 30 40 =0515+208 04 20 07 56.1 154.8 -1.0 0.0 90 581 17 29 11 17 31 22 CRAB 04 20 49 56.0 148.0 -1.2 0.0 15 581 17 31 22 17 36 22 --- 04 25 50 56.4 149.9 -1.2 0.0 300 619 17 31 23 17 37 02 J0518+2054 04 26 30 56.5 157.4 -0.9 0.0 13 619 17 37 02 17 38 32 =0515+208 04 28 00 56.5 158.0 -0.9 0.0 90 631 17 37 03 17 39 14 CRAB 04 28 42 56.6 151.1 -1.1 0.0 15 631 17 39 14 17 44 14 --- 04 33 43 56.9 153.1 -1.0 0.0 300 669 17 39 15 17 44 54 J0518+2054 04 34 23 56.9 160.7 -0.7 0.0 13 669 17 44 54 17 46 24 =0515+208 04 35 53 57.0 161.3 -0.7 0.0 90 681 17 44 55 17 47 06 CRAB 04 36 35 57.1 154.2 -1.0 0.0 15 681 17 47 06 17 52 06 --- 04 41 36 57.4 156.3 -0.9 0.0 300 719 17 47 07 17 52 46 J0518+2054 04 42 16 57.2 164.0 -0.6 0.0 13 719 17 52 46 17 54 16 =0515+208 04 43 47 57.3 164.6 -0.6 0.0 90 731 17 52 47 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 ---------------------------------------------------------------------------------------- --- Sat 25 Feb 2017 Day 56 --- 17 54 58 CRAB 04 44 29 57.6 157.5 -0.9 0.0 15 731 17 54 58 17 59 58 --- 04 49 30 57.9 159.6 -0.8 0.0 300 769 17 54 59 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess117.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: 11 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: 2 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: 2 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 33.889523 0.00 21 58 54.53487 * 22 00 52.19100 22 01 21.27603 0.00 From catalog imbedded in main SCHED input file. 0515+208 05 15 05.041798 * 05 18 03.824513 05 19 05.105439 0.02 * J0518+2054 20 51 43.76307 * 20 54 52.49736 20 55 45.68891 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 54.614639 0.21 * J0530+1331 13 29 42.28885 * 13 31 55.14952 13 32 26.72422 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 sess117.L1024 1 2 3 4 5 6 7 8 9 12 1.167 73.193 J0518+2054 sess117.L1024 1 2 3 4 5 6 7 8 9 12 0.350 19.250 J0530+1331 sess117.L1024 1 2 3 4 5 6 7 8 9 12 0.150 9.862 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 107.0 J0518+2054 103.1 J0530+1331 105.6 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