COVER INFORMATION Station: TIANMA65 (Code T6 ) 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 TIANMA65 (Code T6 ) 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: 659.51 659.51 659.51 659.51 627.51 627.51 627.51 627.51 595.51 595.51 595.51 595.51 563.51 563.51 563.51 563.51 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 10 27 22 20.6 273.7 4.9 61.5 0 0 16 00 00 16 05 00 =0528+134 10 32 23 19.6 274.4 5.0 61.4 300 38 16 00 01 16 05 40 J0518+2054 10 33 03 20.1 282.9 5.2 63.3 21 38 16 05 40 16 07 10 =0515+208 10 34 33 19.8 283.1 5.3 63.3 90 50 16 05 41 16 07 52 CRAB 10 35 15 23.6 282.4 5.0 64.5 25 50 16 07 52 16 12 52 --- 10 40 16 22.5 282.9 5.1 64.2 300 88 16 07 53 16 13 32 J0518+2054 10 40 56 18.5 283.8 5.4 62.9 22 88 16 13 32 16 15 02 =0515+208 10 42 26 18.2 284.0 5.4 62.8 90 100 16 13 33 16 15 44 CRAB 10 43 09 21.9 283.2 5.1 64.0 25 100 16 15 44 16 20 44 --- 10 48 09 20.9 283.8 5.2 63.8 300 138 16 15 45 16 21 24 J0518+2054 10 48 50 16.8 284.7 5.5 62.5 22 138 16 21 24 16 22 54 =0515+208 10 50 20 16.5 284.8 5.5 62.4 90 150 16 21 25 16 23 36 CRAB 10 51 02 20.3 284.1 5.3 63.6 25 150 16 23 36 16 28 36 --- 10 56 03 19.3 284.7 5.3 63.3 300 188 16 23 37 16 29 16 J0518+2054 10 56 43 15.2 285.6 5.6 62.0 22 188 16 29 16 16 30 46 =0515+208 10 58 13 14.9 285.7 5.7 61.9 90 200 16 29 17 16 31 28 CRAB 10 58 55 18.7 285.0 5.4 63.2 25 200 16 31 28 16 36 28 --- 11 03 56 17.6 285.5 5.5 62.9 300 238 16 31 29 16 37 08 J0518+2054 11 04 36 13.6 286.5 5.8 61.6 22 238 16 37 08 16 38 38 =0515+208 11 06 06 13.3 286.6 5.8 61.5 90 250 16 37 09 16 39 20 CRAB 11 06 48 17.0 285.9 5.5 62.7 25 250 16 39 20 16 44 20 --- 11 11 49 16.0 286.4 5.6 62.4 300 288 16 39 21 16 45 00 J0518+2054 11 12 29 12.0 287.4 5.9 61.0 22 288 16 45 00 16 46 30 =0515+208 11 14 00 11.7 287.5 5.9 60.9 90 300 16 45 01 16 47 12 CRAB 11 14 42 15.4 286.7 5.7 62.2 25 300 16 47 12 16 52 12 --- 11 19 43 14.4 287.3 5.7 61.9 300 338 16 47 13 Schedule for TIANMA65 (Code T6 ) 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 11 20 33 9.3 280.3 5.8 60.1 28 338 16 53 02 16 57 02 =0528+134 11 24 33 8.5 280.7 5.9 59.9 240 369 16 53 03 16 57 42 J0518+2054 11 25 13 9.4 288.9 6.1 60.2 22 369 16 57 42 16 59 12 =0515+208 11 26 44 9.1 289.0 6.1 60.1 90 381 16 57 43 16 59 54 CRAB 11 27 26 12.8 288.2 5.9 61.4 25 381 16 59 54 17 04 54 --- 11 32 27 11.8 288.7 5.9 61.0 300 419 16 59 55 17 05 34 J0518+2054 11 33 07 7.8 289.8 6.2 59.6 22 419 17 05 34 17 07 04 =0515+208 11 34 37 7.5 290.0 6.3 59.5 90 431 17 05 35 17 07 46 CRAB 11 35 19 11.2 289.1 6.0 60.8 25 431 17 07 46 17 12 46 --- 11 40 20 10.2 289.7 6.1 60.4 300 469 17 07 47 17 15 38 CRAB 11 43 12 9.6 290.0 6.1 60.2 170 469 17 15 38 17 20 38 --- 11 48 13 8.6 290.6 6.2 59.9 300 508 17 15 39 17 23 30 CRAB 11 51 06 8.0 290.9 6.3 59.6 170 508 17 23 30 17 28 30 --- 11 56 07 7.0 291.5 6.3 59.2 300 546 17 23 31 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: 10 Station: TIANMA65 Total bit rate: 1024 Format: MARK5B Bits per sample: 2 Sample rate: 32.000 Number of channels: 16 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 2270.00 2270.00 2270.00 2270.00 2270.00 2270.00 2270.00 2270.00 2270.00 2270.00 2270.00 2270.00 2270.00 2270.00 2270.00 2270.00 Net SB= L L U U L L U U L L U U L L U U IF SB = L L L L L L L L L L L L L L L L Pol. = RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 9 1 9 3 11 3 11 5 13 5 13 7 15 7 15 BBC SB= U U L L U U L L U U L L U U L L IF = A2 C1 A2 C1 A2 C1 A2 C1 B2 D1 B2 D1 B2 D1 B2 D1 The following frequency sets based on these setups were used. Frequency Set: 12 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= 659.51 659.51 659.51 659.51 627.51 627.51 627.51 627.51 595.51 595.51 595.51 595.51 563.51 563.51 563.51 563.51 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: 12 Track assignments are: track1= 2, 10, 18, 26, 4, 12, 20, 28, 6, 14, 22, 30, 8, 16, 24, 32 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