COVER INFORMATION Station: URUMQI (Code Ur ) 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 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 ---------------------------------------------------------------------------------------- --- Sat 25 Feb 2017 Day 56 --- 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 16 00 00 J0530+1331 08 11 32 44.6 241.2 2.7 40.8 0 0 16 00 00 16 05 00 =0528+134 08 16 33 43.8 242.5 2.7 41.4 300 38 16 00 04 16 05 40 J0518+2054 08 17 13 46.8 253.1 3.0 48.0 25 38 16 05 40 16 07 10 =0515+208 08 18 43 46.5 253.5 3.0 48.1 90 50 16 05 44 16 07 52 CRAB 08 19 25 50.0 251.0 2.7 47.7 32 50 16 07 52 16 12 52 --- 08 24 26 49.1 252.2 2.8 48.2 300 88 16 07 56 16 13 32 J0518+2054 08 25 06 45.4 254.9 3.1 48.6 30 88 16 13 32 16 15 02 =0515+208 08 26 37 45.2 255.2 3.1 48.7 90 100 16 13 36 16 15 44 CRAB 08 27 19 48.6 252.9 2.9 48.4 32 100 16 15 44 16 20 44 --- 08 32 20 47.8 254.0 2.9 48.8 300 138 16 15 48 16 21 24 J0518+2054 08 33 00 44.0 256.6 3.2 49.1 30 138 16 21 24 16 22 54 =0515+208 08 34 30 43.8 256.9 3.3 49.2 90 150 16 21 28 16 23 36 CRAB 08 35 12 47.3 254.7 3.0 49.0 32 150 16 23 36 16 28 36 --- 08 40 13 46.4 255.8 3.1 49.4 300 188 16 23 40 16 29 16 J0518+2054 08 40 53 42.6 258.2 3.4 49.5 30 188 16 29 16 16 30 46 =0515+208 08 42 23 42.4 258.5 3.4 49.6 90 200 16 29 20 16 31 28 CRAB 08 43 05 45.9 256.4 3.1 49.5 32 200 16 31 28 16 36 28 --- 08 48 06 45.0 257.5 3.2 49.8 300 238 16 31 32 16 37 08 J0518+2054 08 48 46 41.2 259.8 3.5 49.9 30 238 16 37 08 16 38 38 =0515+208 08 50 16 41.0 260.1 3.5 50.0 90 250 16 37 12 16 39 20 CRAB 08 50 59 44.5 258.1 3.3 50.0 32 250 16 39 20 16 44 20 --- 08 55 59 43.6 259.1 3.3 50.2 300 288 16 39 24 16 45 00 J0518+2054 08 56 40 39.8 261.4 3.6 50.2 30 288 16 45 00 16 46 30 =0515+208 08 58 10 39.6 261.7 3.7 50.2 90 300 16 45 04 16 47 12 CRAB 08 58 52 43.1 259.7 3.4 50.4 32 300 16 47 12 16 52 12 --- 09 03 53 42.2 260.7 3.5 50.6 300 338 16 47 16 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 ---------------------------------------------------------------------------------------- --- Sat 25 Feb 2017 Day 56 --- 16 53 02 J0530+1331 09 04 43 35.7 253.5 3.5 45.7 34 338 16 53 02 16 57 02 =0528+134 09 08 43 35.0 254.3 3.6 45.9 240 369 16 53 06 16 57 42 J0518+2054 09 09 24 37.5 263.8 3.8 50.6 27 369 16 57 42 16 59 12 =0515+208 09 10 54 37.3 264.1 3.9 50.6 90 381 16 57 46 16 59 54 CRAB 09 11 36 40.8 262.2 3.6 50.9 32 381 16 59 54 17 04 54 --- 09 16 37 39.9 263.2 3.7 51.0 300 419 16 59 58 17 05 34 J0518+2054 09 17 17 36.1 265.3 4.0 50.7 30 419 17 05 34 17 07 04 =0515+208 09 18 47 35.8 265.6 4.0 50.8 90 431 17 05 38 17 07 46 CRAB 09 19 29 39.4 263.7 3.7 51.1 32 431 17 07 46 17 12 46 --- 09 24 30 38.5 264.6 3.8 51.2 300 469 17 07 50 17 13 26 J0518+2054 09 25 10 34.7 266.7 4.1 50.9 30 469 17 13 26 17 14 56 =0515+208 09 26 40 34.4 267.0 4.1 50.9 90 481 17 13 30 17 15 38 CRAB 09 27 23 37.9 265.2 3.9 51.3 32 481 17 15 38 17 20 38 --- 09 32 23 37.0 266.1 3.9 51.4 300 519 17 15 42 17 21 18 J0518+2054 09 33 03 33.2 268.1 4.2 50.9 30 519 17 21 18 17 22 48 =0515+208 09 34 34 33.0 268.4 4.3 51.0 90 531 17 21 22 17 23 30 CRAB 09 35 16 36.5 266.6 4.0 51.4 32 531 17 23 30 17 28 30 --- 09 40 17 35.6 267.5 4.1 51.5 300 569 17 23 34 17 29 10 J0518+2054 09 40 57 31.8 269.5 4.4 51.0 30 569 17 29 10 17 30 40 =0515+208 09 42 27 31.5 269.7 4.4 51.0 90 581 17 29 14 17 31 22 CRAB 09 43 09 35.1 268.0 4.1 51.5 32 581 17 31 22 17 36 22 --- 09 48 10 34.2 268.9 4.2 51.5 300 619 17 31 26 17 37 02 J0518+2054 09 48 50 30.4 270.8 4.5 51.0 30 619 17 37 02 17 38 32 =0515+208 09 50 20 30.1 271.1 4.5 51.0 90 631 17 37 06 17 39 14 CRAB 09 51 02 33.7 269.4 4.3 51.5 32 631 17 39 14 17 44 14 --- 09 56 03 32.8 270.3 4.3 51.5 300 669 17 39 18 17 44 54 J0518+2054 09 56 43 29.0 272.2 4.6 50.9 30 669 17 44 54 17 46 24 =0515+208 09 58 14 28.7 272.4 4.7 50.9 90 681 17 44 58 17 47 06 CRAB 09 58 56 32.2 270.8 4.4 51.5 32 681 17 47 06 17 52 06 --- 10 03 57 31.3 271.6 4.5 51.5 300 719 17 47 10 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 ---------------------------------------------------------------------------------------- --- Sat 25 Feb 2017 Day 56 --- 17 52 46 J0518+2054 10 04 37 27.5 273.5 4.8 50.9 30 719 17 52 46 17 54 16 =0515+208 10 06 07 27.3 273.7 4.8 50.8 90 731 17 52 50 17 54 58 CRAB 10 06 49 30.8 272.1 4.5 51.5 32 731 17 54 58 17 59 58 --- 10 11 50 29.9 272.9 4.6 51.4 300 769 17 55 02 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess117.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 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