COVER INFORMATION Station: URUMQI (Code Ur ) 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 URUMQI (Code Ur ) 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: 310.49 310.49 310.49 310.49 342.49 342.49 342.49 342.49 374.49 374.49 374.49 374.49 406.49 406.49 406.49 406.49 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 07 43 11 48.9 233.3 2.2 36.8 0 0 09 30 00 09 34 00 =0528+134 07 47 12 48.3 234.5 2.3 37.4 240 31 09 30 04 09 34 54 J0518+2054 07 48 06 51.7 246.0 2.5 45.2 39 31 09 34 54 09 36 09 =0515+208 07 49 31 51.5 246.3 2.5 45.4 75 40 09 34 58 09 36 45 CRAB 07 49 57 54.9 243.2 2.2 44.3 26 40 09 36 45 09 42 15 --- 07 55 28 54.0 244.8 2.3 45.1 330 83 09 36 49 09 43 02 J0518+2054 07 56 15 50.4 248.1 2.6 46.1 37 83 09 43 02 09 44 17 =0515+208 07 57 41 50.1 248.4 2.6 46.3 75 92 09 43 06 09 44 53 CRAB 07 58 07 53.6 245.5 2.4 45.4 26 92 09 44 53 09 50 23 --- 08 03 38 52.7 247.0 2.5 46.1 330 135 09 44 57 09 51 11 J0518+2054 08 04 25 49.0 250.1 2.8 46.9 37 135 09 51 11 09 52 26 =0515+208 08 05 51 48.8 250.5 2.8 47.1 75 144 09 51 15 09 53 02 CRAB 08 06 17 52.2 247.7 2.5 46.4 27 144 09 53 02 09 58 32 --- 08 11 48 51.3 249.1 2.6 47.0 330 187 09 53 06 09 59 20 J0518+2054 08 12 36 47.6 252.1 2.9 47.7 38 187 09 59 20 10 00 35 =0515+208 08 14 01 47.3 252.4 2.9 47.8 75 196 09 59 24 10 01 12 CRAB 08 14 29 50.8 249.8 2.6 47.3 27 196 10 01 12 10 06 42 --- 08 19 59 49.9 251.1 2.7 47.8 330 238 10 01 16 10 07 31 J0518+2054 08 20 48 46.2 253.9 3.0 48.3 38 238 10 07 31 10 08 46 =0515+208 08 22 13 45.9 254.2 3.1 48.4 75 248 10 07 35 10 09 23 CRAB 08 22 41 49.4 251.8 2.8 48.0 27 248 10 09 23 10 14 53 --- 08 28 11 48.5 253.1 2.9 48.5 330 290 10 09 27 10 15 42 J0518+2054 08 29 00 44.7 255.7 3.2 48.9 38 290 10 15 42 10 16 57 =0515+208 08 30 25 44.5 256.0 3.2 48.9 75 300 10 15 46 10 17 34 CRAB 08 30 53 48.0 253.7 2.9 48.7 28 300 10 17 34 10 23 04 --- 08 36 24 47.0 254.9 3.0 49.1 330 342 10 17 38 Schedule for URUMQI (Code Ur ) 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 08 37 13 43.3 257.5 3.3 49.3 39 342 10 23 53 10 25 08 =0515+208 08 38 39 43.0 257.8 3.3 49.4 75 352 10 23 57 10 25 47 CRAB 08 39 07 46.6 255.5 3.1 49.3 28 352 10 25 47 10 31 17 --- 08 44 38 45.6 256.7 3.2 49.6 330 394 10 25 51 10 32 06 J0518+2054 08 45 28 41.8 259.2 3.4 49.7 39 394 10 32 06 10 33 21 =0515+208 08 46 53 41.6 259.5 3.5 49.8 75 404 10 32 10 10 34 00 CRAB 08 47 22 45.1 257.3 3.2 49.8 28 404 10 34 00 10 39 30 --- 08 52 52 44.1 258.5 3.3 50.1 330 446 10 34 04 10 40 29 J0530+1331 08 53 52 37.6 251.2 3.4 45.0 43 446 10 40 29 10 43 19 =0528+134 08 56 52 37.1 251.8 3.4 45.2 170 468 10 40 33 10 44 13 J0518+2054 08 57 36 39.7 261.6 3.6 50.2 40 468 10 44 13 10 45 28 =0515+208 08 59 01 39.4 261.9 3.7 50.3 75 478 10 44 17 10 46 07 CRAB 08 59 30 43.0 259.8 3.4 50.4 29 478 10 46 07 10 51 32 --- 09 04 56 42.0 260.9 3.5 50.6 325 519 10 46 11 10 52 23 J0518+2054 09 05 47 38.2 263.2 3.8 50.5 40 519 10 52 23 10 53 38 =0515+208 09 07 12 37.9 263.4 3.8 50.5 75 529 10 52 27 10 54 17 CRAB 09 07 42 41.5 261.5 3.5 50.7 29 529 10 54 17 10 59 42 --- 09 13 08 40.5 262.5 3.6 50.9 325 571 10 54 21 11 00 34 J0518+2054 09 14 00 36.7 264.7 3.9 50.7 41 571 11 00 34 11 01 49 =0515+208 09 15 25 36.4 264.9 3.9 50.7 75 580 11 00 38 11 02 29 CRAB 09 15 55 40.0 263.0 3.7 51.0 30 580 11 02 29 11 07 54 --- 09 21 21 39.0 264.1 3.8 51.1 325 622 11 02 33 11 08 46 J0518+2054 09 22 13 35.2 266.2 4.1 50.8 41 622 11 08 46 11 10 01 =0515+208 09 23 38 35.0 266.4 4.1 50.8 75 631 11 08 50 11 10 41 CRAB 09 24 09 38.5 264.6 3.8 51.2 30 631 11 10 41 11 16 06 --- 09 29 35 37.5 265.6 3.9 51.3 325 673 11 10 45 11 16 58 J0518+2054 09 30 27 33.7 267.7 4.2 50.9 42 673 11 16 58 11 18 13 =0515+208 09 31 52 33.5 267.9 4.2 50.9 75 683 11 17 02 11 18 55 CRAB 09 32 24 37.0 266.1 3.9 51.4 31 683 11 18 55 11 24 20 --- 09 37 49 36.1 267.1 4.0 51.4 325 724 11 18 59 Schedule for URUMQI (Code Ur ) 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 09 38 42 32.2 269.1 4.3 51.0 42 724 11 25 12 11 26 27 =0515+208 09 40 08 32.0 269.3 4.4 51.0 75 734 11 25 16 11 27 09 CRAB 09 40 39 35.5 267.6 4.1 51.5 31 734 11 27 09 11 32 34 --- 09 46 05 34.6 268.5 4.2 51.5 325 776 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: ur18cm update L.Xiang 9Feb05 Setup group: 2 Station: URUMQI Total bit rate: 1024 Format: MARK5B Bits per sample: 2 Sample rate: 32.000 Number of channels: 16 DBE type: Speedup factor: 1.00 Disk used to record data. 1st LO= 1300.00 1300.00 1300.00 1300.00 1300.00 1300.00 1300.00 1300.00 1300.00 1300.00 1300.00 1300.00 1300.00 1300.00 1300.00 1300.00 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: 6 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= 310.49 310.49 310.49 310.49 342.49 342.49 342.49 342.49 374.49 374.49 374.49 374.49 406.49 406.49 406.49 406.49 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: 6 Track assignments are: track1= 20, 18, 4, 2, 24, 22, 8, 6, 28, 26, 12, 10, 32, 30, 16, 14 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