COVER INFORMATION Station: URUMQI (Code Ur ) Experiment: Long overdue - Measuring the Parallax and proper motion of the Crab. Ste Exp. Code: EK036A Schedule Version: 2.00 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 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 18 Oct 2015 Day 291 --- 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 23 00 00 J0530+1331 06 37 10 56.9 210.1 1.1 22.0 0 0 23 00 00 23 10 00 =0528+134 06 47 11 56.0 214.1 1.3 24.8 600 77 23 00 04 23 11 05 CRAB 06 48 16 63.8 220.9 1.2 30.9 46 77 23 11 05 23 23 25 --- 07 00 38 62.2 226.3 1.4 34.4 740 172 23 11 09 23 23 45 CRAB 07 00 59 62.2 226.4 1.4 34.5 18 172 23 23 45 23 36 15 --- 07 13 31 60.5 231.3 1.6 37.6 750 268 23 23 49 23 36 55 J0518+2054 07 14 11 57.1 236.0 1.9 40.1 30 268 23 36 55 23 37 55 =0515+208 07 15 11 57.0 236.3 1.9 40.3 60 276 23 36 59 23 38 35 CRAB 07 15 51 60.1 232.1 1.7 38.2 30 276 23 38 35 23 51 05 --- 07 28 23 58.3 236.5 1.9 40.8 750 372 23 38 39 --- Start: Sun 18 Oct 2015 Day 291 -- Stop: Mon 19 Oct 2015 Day 292 --- 23 51 25 CRAB 07 28 43 58.2 236.6 1.9 40.8 18 372 23 51 25 00 03 55 --- 07 41 15 56.3 240.6 2.1 43.0 750 468 23 51 29 00 04 35 J0518+2054 07 41 55 52.8 244.3 2.4 44.4 30 468 00 04 35 00 05 35 =0515+208 07 42 55 52.6 244.6 2.4 44.6 60 476 00 04 39 00 06 15 CRAB 07 43 36 55.9 241.3 2.1 43.4 30 476 00 06 15 00 18 45 --- 07 56 08 53.9 245.0 2.3 45.2 750 572 00 06 19 00 19 05 CRAB 07 56 28 53.8 245.1 2.3 45.2 18 572 00 19 05 00 31 35 --- 08 09 00 51.8 248.4 2.6 46.7 750 668 00 19 09 00 32 15 J0518+2054 08 09 40 48.1 251.4 2.8 47.4 30 668 00 32 15 00 33 15 =0515+208 08 10 40 47.9 251.6 2.9 47.5 60 676 00 32 19 00 33 55 CRAB 08 11 20 51.4 249.0 2.6 47.0 30 676 00 33 55 00 46 25 --- 08 23 52 49.2 252.1 2.8 48.1 750 772 00 33 59 00 46 45 CRAB 08 24 12 49.2 252.1 2.8 48.2 18 772 00 46 45 00 59 15 --- 08 36 44 47.0 255.0 3.0 49.1 750 868 00 46 49 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 ---------------------------------------------------------------------------------------- --- Mon 19 Oct 2015 Day 292 --- 01 00 25 J0530+1331 08 37 54 40.3 247.6 3.1 43.7 54 868 01 00 25 01 05 00 =0528+134 08 42 30 39.5 248.7 3.2 44.1 275 903 01 00 29 01 06 10 CRAB 08 43 40 45.8 256.5 3.1 49.6 54 903 01 06 10 01 18 30 --- 08 56 02 43.6 259.1 3.3 50.2 740 998 01 06 14 01 18 50 CRAB 08 56 22 43.5 259.2 3.3 50.3 18 998 01 18 50 01 31 10 --- 09 08 44 41.3 261.7 3.6 50.8 740 1093 01 18 54 01 32 00 J0518+2054 09 09 35 37.5 263.9 3.8 50.6 40 1093 01 32 00 01 33 00 =0515+208 09 10 35 37.3 264.1 3.9 50.6 60 1101 01 32 04 01 33 50 CRAB 09 11 25 40.8 262.2 3.6 50.9 40 1101 01 33 50 01 46 10 --- 09 23 47 38.6 264.5 3.8 51.2 740 1196 01 33 54 01 46 30 CRAB 09 24 07 38.5 264.6 3.8 51.2 18 1196 01 46 30 01 58 50 --- 09 36 29 36.3 266.8 4.0 51.4 740 1290 01 46 34 01 59 40 J0518+2054 09 37 19 32.5 268.9 4.3 51.0 40 1290 01 59 40 02 00 40 =0515+208 09 38 19 32.3 269.0 4.3 51.0 60 1298 01 59 44 02 01 30 CRAB 09 39 09 35.8 267.3 4.1 51.4 40 1298 02 01 30 02 13 50 --- 09 51 31 33.6 269.5 4.3 51.5 740 1393 02 01 34 02 14 10 CRAB 09 51 52 33.5 269.5 4.3 51.5 18 1393 02 14 10 02 20 00 --- 09 57 42 32.4 270.6 4.4 51.5 350 1438 02 14 14 02 20 20 CRAB 09 58 03 32.4 270.6 4.4 51.5 18 1438 02 20 20 02 26 30 --- 10 04 14 31.3 271.7 4.5 51.5 370 1485 02 20 24 02 27 20 J0518+2054 10 05 04 27.4 273.6 4.8 50.8 40 1485 02 27 20 02 28 20 =0515+208 10 06 04 27.3 273.7 4.8 50.8 60 1493 02 27 24 02 29 10 CRAB 10 06 54 30.8 272.1 4.5 51.5 40 1493 02 29 10 02 41 30 --- 10 19 16 28.5 274.2 4.7 51.3 740 1588 02 29 14 02 41 50 CRAB 10 19 36 28.5 274.2 4.7 51.3 18 1588 02 41 50 02 54 10 --- 10 31 58 26.2 276.2 4.9 51.1 740 1683 02 41 54 02 55 30 J0530+1331 10 33 18 19.8 270.1 5.0 48.3 65 1683 02 55 30 03 00 00 =0528+134 10 37 49 19.0 270.8 5.1 48.3 270 1717 02 55 34 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess315.L1024 Matching groups in /home/guest/rmc/SCHED/sched11.4/catalogs/freq_RDBE.dat: ur18cm update L.Xiang 9Feb05 Setup group: 1 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: 8 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: 8 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 29.692879 0.00 21 58 54.53487 * 22 00 52.19100 22 01 18.48119 0.00 From catalog imbedded in main SCHED input file. 0515+208 05 15 05.041798 * 05 18 03.824513 05 19 01.125354 0.02 * J0518+2054 20 51 43.76307 * 20 54 52.49736 20 55 41.97620 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 50.712033 0.21 * J0530+1331 13 29 42.28885 * 13 31 55.14952 13 32 29.02251 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 sess315.L1024 1 2 3 4 5 6 7 8 9 12 13 14 3.303 283.739 J0518+2054 sess315.L1024 1 2 3 4 5 6 7 8 9 12 13 14 0.100 8.453 J0530+1331 sess315.L1024 1 2 3 4 5 6 7 8 9 12 13 14 0.318 26.243 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 121.0 J0518+2054 124.9 J0530+1331 121.8 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