COVER INFORMATION Station: IRBENE (Code Ir ) 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 IRBENE (Code Ir ) 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: 395.49 395.49 395.49 395.49 427.49 427.49 427.49 427.49 459.49 459.49 459.49 459.49 491.49 491.49 491.49 491.49 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 03 21 54 39.6-222.7 -2.2 -22.0 0 0 09 30 00 09 34 00 =0528+134 03 25 54 40.0-221.5 -2.1 -21.5 240 31 09 30 01 09 34 54 J0518+2054 03 26 48 48.0-221.1 -1.9 -22.2 47 31 09 34 54 09 36 09 =0515+208 03 28 14 48.2-220.6 -1.8 -22.0 75 41 09 34 55 09 36 45 CRAB 03 28 40 47.7-226.4 -2.1 -24.8 30 41 09 36 45 09 42 15 --- 03 34 11 48.2-224.7 -2.0 -24.0 330 83 09 36 46 09 43 02 J0518+2054 03 34 58 48.7-218.4 -1.7 -20.9 41 83 09 43 02 09 44 17 =0515+208 03 36 23 48.9-218.0 -1.7 -20.7 75 93 09 43 03 09 44 53 CRAB 03 36 49 48.5-223.8 -2.0 -23.6 30 93 09 44 53 09 50 23 --- 03 42 20 49.0-222.0 -1.9 -22.8 330 135 09 44 54 09 51 11 J0518+2054 03 43 08 49.4-215.7 -1.6 -19.6 41 135 09 51 11 09 52 26 =0515+208 03 44 33 49.5-215.2 -1.6 -19.3 75 145 09 51 12 09 53 02 CRAB 03 45 00 49.2-221.2 -1.8 -22.4 31 145 09 53 02 09 58 32 --- 03 50 31 49.7-219.3 -1.8 -21.5 330 187 09 53 03 09 59 20 J0518+2054 03 51 19 50.0-212.9 -1.5 -18.2 42 187 09 59 20 10 00 35 =0515+208 03 52 44 50.1-212.4 -1.4 -17.9 75 197 09 59 21 10 01 12 CRAB 03 53 11 49.9-218.4 -1.7 -21.1 31 197 10 01 12 10 06 42 --- 03 58 42 50.4-216.6 -1.6 -20.2 330 240 10 01 13 10 07 31 J0518+2054 03 59 30 50.6-210.0 -1.3 -16.7 42 240 10 07 31 10 08 46 =0515+208 04 00 55 50.7-209.5 -1.3 -16.5 75 249 10 07 32 10 09 23 CRAB 04 01 23 50.6-215.7 -1.6 -19.7 31 249 10 09 23 10 14 53 --- 04 06 54 51.0-213.8 -1.5 -18.8 330 292 10 09 24 10 15 42 J0518+2054 04 07 43 51.1-207.1 -1.2 -15.2 42 292 10 15 42 10 16 57 =0515+208 04 09 08 51.2-206.6 -1.2 -14.9 75 301 10 15 43 10 17 34 CRAB 04 09 36 51.2-212.8 -1.4 -18.3 32 301 10 17 34 10 23 04 --- 04 15 07 51.6-210.9 -1.3 -17.3 330 344 10 17 35 Schedule for IRBENE (Code Ir ) 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 04 15 56 51.6-204.1 -1.1 -13.6 43 344 10 23 53 10 25 08 =0515+208 04 17 21 51.7-203.6 -1.0 -13.3 75 354 10 23 54 10 25 47 CRAB 04 17 49 51.8-209.9 -1.3 -16.8 32 354 10 25 47 10 31 17 --- 04 23 20 52.1-207.9 -1.2 -15.7 330 396 10 25 48 10 32 06 J0518+2054 04 24 10 52.0-201.1 -0.9 -11.9 43 396 10 32 06 10 33 21 =0515+208 04 25 35 52.1-200.6 -0.9 -11.6 75 406 10 32 07 10 34 00 CRAB 04 26 04 52.3-206.9 -1.2 -15.2 32 406 10 34 00 10 39 30 --- 04 31 35 52.6-204.9 -1.1 -14.1 330 448 10 34 01 10 40 29 J0530+1331 04 32 34 44.6-200.4 -1.0 -11.1 52 448 10 40 29 10 43 19 =0528+134 04 35 34 44.7-199.4 -0.9 -10.6 170 470 10 40 30 10 44 13 J0518+2054 04 36 18 52.5-196.6 -0.7 -9.4 47 470 10 44 13 10 45 28 =0515+208 04 37 44 52.6-196.0 -0.7 -9.1 75 480 10 44 14 10 46 07 CRAB 04 38 13 53.0-202.4 -1.0 -12.7 33 480 10 46 07 10 51 32 --- 04 43 39 53.2-200.3 -0.9 -11.6 325 522 10 46 08 10 52 23 J0518+2054 04 44 30 52.8-193.4 -0.6 -7.7 44 522 10 52 23 10 53 38 =0515+208 04 45 55 52.9-192.9 -0.6 -7.4 75 531 10 52 24 10 54 17 CRAB 04 46 25 53.4-199.3 -0.8 -11.0 33 531 10 54 17 10 59 42 --- 04 51 51 53.6-197.2 -0.7 -9.9 325 573 10 54 18 11 00 34 J0518+2054 04 52 42 53.1-190.3 -0.4 -5.9 45 573 11 00 34 11 01 49 =0515+208 04 54 07 53.1-189.7 -0.4 -5.6 75 583 11 00 35 11 02 29 CRAB 04 54 38 53.7-196.1 -0.7 -9.3 34 583 11 02 29 11 07 54 --- 05 00 03 53.9-194.0 -0.6 -8.1 325 625 11 02 30 11 08 46 J0518+2054 05 00 55 53.2-187.1 -0.3 -4.1 45 625 11 08 46 11 10 01 =0515+208 05 02 20 53.2-186.5 -0.3 -3.7 75 634 11 08 47 11 10 41 CRAB 05 02 51 54.0-192.9 -0.5 -7.5 34 634 11 10 41 11 16 06 --- 05 08 17 54.1-190.8 -0.5 -6.2 325 676 11 10 42 11 16 58 J0518+2054 05 09 10 53.3-183.9 -0.2 -2.2 46 676 11 16 58 11 18 13 =0515+208 05 10 35 53.3-183.3 -0.1 -1.9 75 686 11 16 59 11 18 55 CRAB 05 11 06 54.2-189.7 -0.4 -5.6 35 686 11 18 55 11 24 20 --- 05 16 32 54.3-187.6 -0.3 -4.4 325 728 11 18 56 Schedule for IRBENE (Code Ir ) 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 05 17 25 53.4-180.6 -0.0 -0.4 46 728 11 25 12 11 26 27 =0515+208 05 18 50 53.4-180.1 -0.0 -0.1 75 737 11 25 13 11 27 09 CRAB 05 19 22 54.3-186.4 -0.3 -3.7 35 737 11 27 09 11 32 34 --- 05 24 48 54.4-184.3 -0.2 -2.5 325 779 11 27 10 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess217.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: IRBENE Total bit rate: 1024 Format: VDIF 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= 1215.00 1215.00 1215.00 1215.00 1215.00 1215.00 1215.00 1215.00 1215.00 1215.00 1215.00 1215.00 1215.00 1215.00 1215.00 1215.00 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 = 1 9 1 9 3 11 3 11 5 13 5 13 7 15 7 15 BBC SB= L L U U L L U U L L U U L L U U IF = A1 C1 A1 C1 A1 C1 A1 C1 B1 D1 B1 D1 B1 D1 B1 D1 The following frequency sets based on these setups were used. Frequency Set: 10 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= 395.49 395.49 395.49 395.49 427.49 427.49 427.49 427.49 459.49 459.49 459.49 459.49 491.49 491.49 491.49 491.49 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: 10 Track assignments are: track1= 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 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