COVER INFORMATION Station: JODRELL1 (Code Jb ) Experiment: RadioAstron observations of Crab pulsar Exp. Code: eg075 Schedule Version: 1.00 Processed by SCHED version: 11.10 Version 11.1 Beta of about April 26, 201 PI: Carl Gwinn Address: Physics Department, Broida Hall UC Santa Barbara Santa Barbara CA 93106, USA Phone: +1-805-893-2814 EMAIL: cgwinn@physics.ucsb.edu Fax: +1-805-893-8597 Phone during observation: +7-903-661-4865 Observing mode: L-band, dual-pol Notes: L-band, Radioastron-compatible frequency setup P-CAL is OFF Tsys is OFF auto-level (AGC) is OFF Schedule for JODRELL1 (Code Jb ) Page 2 RadioAstron observations of Crab pulsar 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 27 Oct 2013 Day 300 --- ---------- This is a 1min calibration scan with auto-level (AGC) ON ---------- Next scan frequencies: 1668.00 1668.00 1668.00 1668.00 Next BBC frequencies: 158.00 158.00 158.00 158.00 Next scan bandwidths: 16.00 16.00 16.00 16.00 05 58 00 CRAB 08 11 49 47.0 239.0 2.6 33.6 0 0 Stopped 05 59 00 --- 08 12 49 46.8 239.2 2.6 33.7 60 0 ---------- Please make sure Pcal, noise diode (Tsys) and auto-level (AGC) are OFF now ---------- 06 00 00 CRAB 08 13 49 46.7 239.5 2.6 33.8 52 0 06 00 00 06 09 30 --- 08 23 20 45.5 242.2 2.8 34.8 570 18 06 00 04 06 10 00 CRAB 08 23 50 45.4 242.3 2.8 34.9 22 18 06 10 00 06 19 30 --- 08 33 22 44.1 244.8 3.0 35.8 570 36 06 10 04 06 20 00 CRAB 08 33 52 44.1 245.0 3.0 35.8 22 36 06 20 00 06 29 30 --- 08 43 24 42.7 247.4 3.1 36.6 570 55 06 20 04 06 30 00 CRAB 08 43 54 42.7 247.5 3.1 36.6 22 55 06 30 00 06 39 30 --- 08 53 25 41.4 249.9 3.3 37.3 570 73 06 30 04 06 40 00 CRAB 08 53 55 41.3 250.0 3.3 37.4 22 73 06 40 00 06 49 30 --- 09 03 27 39.9 252.3 3.5 38.0 570 91 06 40 04 06 50 00 CRAB 09 03 57 39.9 252.5 3.5 38.0 22 91 06 50 00 06 59 30 --- 09 13 29 38.5 254.7 3.6 38.5 570 109 06 50 04 07 00 00 CRAB 09 13 59 38.4 254.8 3.6 38.5 22 109 07 00 00 07 09 30 --- 09 23 30 37.0 257.0 3.8 39.0 570 128 07 00 04 07 10 00 CRAB 09 24 00 37.0 257.1 3.8 39.0 22 128 07 10 00 07 19 30 --- 09 33 32 35.6 259.2 4.0 39.4 570 146 07 10 04 07 20 00 CRAB 09 34 02 35.5 259.3 4.0 39.4 22 146 07 20 00 07 29 30 --- 09 43 34 34.1 261.4 4.1 39.7 570 164 07 20 04 07 30 00 CRAB 09 44 04 34.0 261.5 4.1 39.7 22 164 07 30 00 07 39 30 --- 09 53 35 32.6 263.5 4.3 39.9 570 182 07 30 04 07 40 00 CRAB 09 54 05 32.5 263.6 4.3 39.9 23 182 07 40 00 07 49 30 --- 10 03 37 31.1 265.6 4.5 40.1 570 201 07 40 04 07 50 00 CRAB 10 04 07 31.0 265.7 4.5 40.1 23 201 07 50 00 07 59 30 --- 10 13 38 29.6 267.7 4.6 40.2 570 219 07 50 04 Schedule for JODRELL1 (Code Jb ) Page 3 RadioAstron observations of Crab pulsar 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 27 Oct 2013 Day 300 --- 08 00 00 CRAB 10 14 09 29.5 267.8 4.6 40.2 23 219 08 00 00 08 09 30 --- 10 23 40 28.1 269.7 4.8 40.2 570 237 08 00 04 08 10 00 CRAB 10 24 10 28.0 269.8 4.8 40.2 23 237 08 10 00 08 19 30 --- 10 33 42 26.6 271.7 5.0 40.2 570 255 08 10 04 08 20 00 CRAB 10 34 12 26.5 271.8 5.0 40.2 23 255 08 20 00 08 29 30 --- 10 43 43 25.1 273.7 5.1 40.1 570 274 08 20 04 08 30 00 CRAB 10 44 13 25.0 273.8 5.1 40.1 23 274 08 30 00 08 39 30 --- 10 53 45 23.6 275.7 5.3 40.0 570 292 08 30 04 08 40 00 CRAB 10 54 15 23.5 275.7 5.3 40.0 23 292 08 40 00 08 49 30 --- 11 03 47 22.1 277.6 5.5 39.8 570 310 08 40 04 08 50 00 CRAB 11 04 17 22.1 277.7 5.5 39.8 23 310 08 50 00 09 00 00 --- 11 14 18 20.6 279.6 5.6 39.5 600 329 08 50 04 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: ra18cm2_autolevel.set Matching groups in ./eg075.freq.sess313rdbe.dat: j1b18cm LO from Parry 23Jan97, must be using Low patch Setup group: 1 Station: JODRELL1 Total bit rate: 256 Format: MKIV1:4 Bits per sample: 2 Sample rate: 32.000 Number of channels: 4 DBE type: Disk used to record data. Setup not used for recording data. 1st LO= 1510.00 1510.00 1510.00 1510.00 Net SB= L L U U IF SB = U U U U Pol. = RCP LCP RCP LCP BBC = 2 1 2 1 BBC SB= L L U U IF = 2N 1N 2N 1N The following frequency sets based on these setups were used. Frequency Set: 3 Setup file default. LO sum= 1668.00 1668.00 1668.00 1668.00 BBC fr= 158.00 158.00 158.00 158.00 Bandwd= 16.00 16.00 16.00 16.00 Matching frequency sets: 3 ======== Setup file: ra18cm2.set Matching groups in ./eg075.freq.sess313rdbe.dat: j1b18cm LO from Parry 23Jan97, must be using Low patch Setup group: 11 Station: JODRELL1 Total bit rate: 256 Format: MKIV1:4 Bits per sample: 2 Sample rate: 32.000 Number of channels: 4 DBE type: Speedup factor: 1.00 Disk used to record data. 1st LO= 1510.00 1510.00 1510.00 1510.00 Net SB= L L U U IF SB = U U U U Pol. = RCP LCP RCP LCP BBC = 2 1 2 1 BBC SB= L L U U IF = 2N 1N 2N 1N The following frequency sets based on these setups were used. Frequency Set: 12 Setup file default. LO sum= 1668.00 1668.00 1668.00 1668.00 BBC fr= 158.00 158.00 158.00 158.00 Bandwd= 16.00 16.00 16.00 16.00 Matching frequency sets: 12 Track assignments are: track1= 2, 18, 3, 19 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * CRAB 05 31 31.427725 * 05 34 31.973000 05 35 23.552586 0.00 21 58 54.40670 * 22 00 52.06000 22 01 16.54303 0.00 From catalog imbedded in main SCHED input file. Pulsar * FAKERA 11 57 21.769299 * 12 00 00.000000 12 00 25.703640 0.00 85 16 41.77889 * 85 00 00.00000 84 55 08.19093 0.00 From catalog imbedded in main SCHED input file. fake circumpolar target for the TS to look at 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 ra18cm2.set 10 11 12 13 14 15 16 17 18 + 2.858 116.233 FAKERA ra18cm2.set 18 2.858 0.000 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 129.7 FAKERA 98.5 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