COVER INFORMATION Station: JODRELL1 (Code Jb ) Experiment: Probing pulsar emission with picoarcsecond precision - B1737+13 Exp. Code: GK049D 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 90cm (256 Mb/s), pulsar gating Notes: Target pulsar bright enough to fringe on Fringe finder / bandpass cal: J1751+0939 PCAL off, AGC off at all stations power switching and AGC off also at VLA Schedule for JODRELL1 (Code Jb ) Page 2 Probing pulsar emission with picoarcsecond precision - B1737+13 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 5 Mar 2017 Day 64 --- Next scan frequencies: 320.25 320.25 320.25 320.25 336.25 336.25 336.25 336.25 Next BBC frequencies: 170.25 170.25 170.25 170.25 186.25 186.25 186.25 186.25 Next scan bandwidths: 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 10 00 00 PHASE-REF 20 44 09 33.7 242.1 3.3 32.8 0 0 10 00 00 10 01 30 --- 20 45 39 33.5 242.5 3.3 32.9 90 3 10 00 01 10 02 10 TARGET 20 46 19 35.8 240.3 3.1 32.3 11 3 10 02 10 10 11 10 --- 20 55 20 34.6 242.6 3.2 33.1 540 20 10 02 11 10 11 27 TARGET 20 55 37 34.6 242.6 3.2 33.1 10 20 10 11 27 10 21 27 --- 21 05 39 33.2 245.1 3.4 33.9 600 39 10 11 28 10 22 07 PHASE-REF 21 06 19 30.7 247.5 3.6 34.5 10 39 10 22 07 10 23 37 --- 21 07 49 30.5 247.8 3.6 34.6 90 42 10 22 08 10 24 31 BP-CAL 21 08 44 31.4 240.8 3.3 32.0 10 42 10 24 31 10 29 31 --- 21 13 44 30.7 242.0 3.4 32.4 300 52 10 24 32 10 30 12 TARGET 21 14 26 32.0 247.2 3.6 34.5 5 52 10 30 12 10 40 12 --- 21 24 27 30.6 249.5 3.7 35.2 600 71 10 30 13 10 40 12 TARGET 21 24 27 30.6 249.5 3.7 35.2 -6 71 No stop 10 41 12 --- 21 25 27 30.5 249.8 3.7 35.2 54 73 10 40 13 10 41 53 PHASE-REF 21 26 08 27.9 252.0 4.0 35.6 10 73 10 41 53 10 43 23 --- 21 27 39 27.7 252.4 4.0 35.7 90 76 10 41 54 10 44 00 TARGET 21 28 16 30.1 250.4 3.8 35.4 7 76 10 44 00 10 54 00 --- 21 38 17 28.7 252.7 4.0 35.9 600 95 10 44 01 10 54 15 TARGET 21 38 33 28.6 252.7 4.0 35.9 8 95 10 54 15 11 04 15 --- 21 48 34 27.2 255.0 4.1 36.4 600 114 10 54 16 11 04 15 TARGET 21 48 34 27.2 255.0 4.1 36.4 -6 114 No stop 11 08 15 --- 21 52 35 26.6 255.9 4.2 36.6 234 122 11 04 16 11 08 15 TARGET 21 52 35 26.6 255.9 4.2 36.6 -6 122 No stop 11 09 15 --- 21 53 35 26.5 256.1 4.2 36.6 54 124 11 08 16 11 09 56 PHASE-REF 21 54 16 23.9 258.2 4.4 36.8 10 124 11 09 56 11 11 26 --- 21 55 46 23.6 258.5 4.4 36.9 90 127 11 09 57 11 11 58 TARGET 21 56 18 26.1 256.7 4.3 36.7 2 127 11 11 58 11 21 58 --- 22 06 20 24.6 258.8 4.4 37.1 600 146 11 11 59 Schedule for JODRELL1 (Code Jb ) Page 3 Probing pulsar emission with picoarcsecond precision - B1737+13 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 5 Mar 2017 Day 64 --- 11 22 13 TARGET 22 06 35 24.6 258.9 4.4 37.1 8 146 11 22 13 11 32 13 --- 22 16 37 23.1 261.0 4.6 37.4 600 165 11 22 14 11 32 13 TARGET 22 16 37 23.1 261.0 4.6 37.4 -6 165 No stop 11 36 13 --- 22 20 37 22.5 261.8 4.7 37.5 234 173 11 32 14 11 36 13 TARGET 22 20 37 22.5 261.8 4.7 37.5 -6 173 No stop 11 37 13 --- 22 21 38 22.4 262.1 4.7 37.5 54 175 11 36 14 11 37 54 PHASE-REF 22 22 19 19.7 264.1 4.9 37.5 10 175 11 37 54 11 39 24 --- 22 23 49 19.5 264.4 4.9 37.6 90 178 11 37 55 11 40 15 BP-CAL 22 24 40 20.8 258.0 4.5 36.4 10 178 11 40 15 11 44 15 --- 22 28 41 20.2 258.8 4.6 36.6 240 186 11 40 16 11 44 55 TARGET 22 29 21 21.2 263.7 4.8 37.7 5 186 11 44 55 11 54 55 --- 22 39 22 19.7 265.7 5.0 37.8 600 205 11 44 56 11 55 10 TARGET 22 39 38 19.7 265.8 5.0 37.8 8 205 11 55 10 12 05 10 --- 22 49 39 18.2 267.8 5.1 37.9 600 224 11 55 11 12 05 10 TARGET 22 49 39 18.2 267.8 5.1 37.9 -6 224 No stop 12 06 10 --- 22 50 39 18.0 268.0 5.2 37.9 54 226 12 05 11 12 07 02 PHASE-REF 22 51 31 15.4 270.0 5.4 37.8 21 226 12 07 02 12 08 32 --- 22 53 02 15.1 270.3 5.4 37.8 90 229 12 07 03 12 09 02 TARGET 22 53 32 17.6 268.6 5.2 37.9 0 229 12 09 02 12 19 02 --- 23 03 33 16.1 270.6 5.4 37.9 600 248 12 09 03 12 19 17 TARGET 23 03 48 16.1 270.6 5.4 37.9 8 248 12 19 17 12 29 17 --- 23 13 50 14.6 272.6 5.5 37.9 600 267 12 19 18 12 29 17 TARGET 23 13 50 14.6 272.6 5.5 37.9 -6 267 No stop 12 30 02 --- 23 14 35 14.5 272.8 5.6 37.9 39 269 12 29 18 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess117.P256glob --- 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: 5 Station: JODRELL1 Total bit rate: 256 Format: MARK5B Bits per sample: 2 Sample rate: 16.000 Number of channels: 8 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 150.00 150.00 150.00 150.00 150.00 150.00 150.00 150.00 Net SB= L L U U L L U U IF SB = U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 9 1 9 3 11 3 11 BBC SB= L L U U L L U U IF = A1 B1 A1 B1 A1 B1 A1 B1 The following frequency sets based on these setups were used. Frequency Set: 3 Setup file default. Used with PCAL = off LO sum= 320.25 320.25 320.25 320.25 336.25 336.25 336.25 336.25 BBC fr= 170.25 170.25 170.25 170.25 186.25 186.25 186.25 186.25 Bandwd= 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 Matching frequency sets: 3 Track assignments are: track1= 10, 14, 2, 6, 12, 16, 4, 8 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * PHASING-SRC 18 02 45.670032 * 18 05 06.445800 18 05 53.961180 0.00 11 01 14.39955 * 11 01 31.64200 11 01 36.43531 0.00 From catalog imbedded in main SCHED input file. * TARGET 17 37 49.176273 * 17 40 07.345500 17 40 54.099214 0.00 13 13 28.46258 * 13 11 56.69000 13 11 23.54824 0.00 From catalog imbedded in main SCHED input file. * PHASE-REF 17 25 47.656525 * 17 28 07.051210 17 28 54.287586 0.00 12 18 03.42230 * 12 15 39.48535 12 14 48.77136 0.00 From catalog imbedded in main SCHED input file. * BP-CAL 17 49 10.387929 * 17 51 32.818572 17 52 20.969726 0.00 09 39 42.82574 * 09 39 00.72829 09 38 45.67751 0.00 From catalog imbedded in main SCHED input file. 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 PHASING-SRCsess117.P256glob 6 0.083 0.000 TARGET sess117.P256glob 1 2 3 4 5 6 2.029 25.365 PHASE-REF sess117.P256glob 1 2 3 4 5 6 0.150 1.729 BP-CAL sess117.P256glob 1 2 3 4 5 6 0.150 2.065 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) PHASING-SRC 76.3 TARGET 82.7 PHASE-REF 85.5 BP-CAL 79.4 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