COVER INFORMATION Station: GBTS (Code Gt ) Experiment: RadioAstron Pulsar observations Exp. Code: gs033a 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: P-band, dual-pol Notes: P-band, Radioastron-compatible frequency setup P-CAL is OFF Tsys is OFF auto-level (AGC) is OFF Schedule for GBTS (Code Gt ) Page 2 RadioAstron Pulsar observations 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 3 Nov 2013 Day 307 --- ---------- The following is to control the GBTS tracking station recorder ---------- Next scan frequencies: 316.00 316.00 Next BBC frequencies: 316.00 316.00 Next scan bandwidths: 16.00 16.00 04 40 00 FAKERA 02 11 05 34.1 3.3 -9.8 -30.7 0 0 04 40 00 04 59 30 --- 02 30 38 34.3 3.7 -9.5 -35.3 1170 19 04 40 01 05 00 00 FAKERA 02 31 08 34.4 3.8 -9.5 -35.4 10 19 05 00 00 05 19 30 --- 02 50 42 34.6 4.2 -9.2 -40.1 1170 37 05 00 01 05 20 00 FAKERA 02 51 12 34.6 4.2 -9.2 -40.2 10 37 05 20 00 05 39 30 --- 03 10 45 34.9 4.6 -8.8 -44.8 1170 56 05 20 01 05 40 00 FAKERA 03 11 15 34.9 4.6 -8.8 -45.0 10 56 05 40 00 05 59 30 --- 03 30 48 35.2 4.9 -8.5 -49.6 1170 75 05 40 01 06 00 00 FAKERA 03 31 18 35.3 5.0 -8.5 -49.7 10 75 06 00 00 06 19 30 --- 03 50 51 35.6 5.3 -8.2 -54.4 1170 94 06 00 01 06 20 00 FAKERA 03 51 21 35.6 5.3 -8.2 -54.5 10 94 06 20 00 06 39 30 --- 04 10 55 36.0 5.6 -7.8 -59.2 1170 112 06 20 01 06 40 00 FAKERA 04 11 25 36.0 5.6 -7.8 -59.4 10 112 06 40 00 06 59 30 --- 04 30 58 36.4 5.8 -7.5 -64.1 1170 131 06 40 01 07 00 00 FAKERA 04 31 28 36.4 5.8 -7.5 -64.2 10 131 07 00 00 07 19 30 --- 04 51 01 36.8 6.1 -7.2 -68.9 1170 150 07 00 01 07 20 00 FAKERA 04 51 31 36.8 6.1 -7.1 -69.1 10 150 07 20 00 07 39 30 --- 05 11 05 37.2 6.2 -6.8 -73.8 1170 168 07 20 01 07 40 00 FAKERA 05 11 35 37.2 6.2 -6.8 -74.0 10 168 07 40 00 07 59 30 --- 05 31 08 37.6 6.4 -6.5 -78.7 1170 187 07 40 01 08 00 00 FAKERA 05 31 38 37.6 6.4 -6.5 -78.9 10 187 08 00 00 08 19 30 --- 05 51 11 38.1 6.5 -6.2 -83.7 1170 206 08 00 01 08 20 00 FAKERA 05 51 41 38.1 6.5 -6.1 -83.8 10 206 08 20 00 08 40 00 --- 06 11 44 38.5 6.5 -5.8 -88.8 1200 225 08 20 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: ra92cm-16-2.set --- 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: 12 Station: GBTS Total bit rate: 128 Format: MKIV1:4 Bits per sample: 2 Sample rate: 32.000 Number of channels: 2 DBE type: Speedup factor: 1.00 Disk used to record data. 1st LO= 0.00 0.00 Net SB= U U IF SB = U U Pol. = RCP LCP BBC = 1 5 BBC SB= U U IF = B D The following frequency sets based on these setups were used. Frequency Set: 5 Setup file default. LO sum= 316.00 316.00 BBC fr= 316.00 316.00 Bandwd= 16.00 16.00 Matching frequency sets: 5 9 12 Track assignments are: track1= 2, 18 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 23.701658 0.00 21 58 54.40670 * 22 00 52.06000 22 01 16.46820 0.00 From catalog imbedded in main SCHED input file. Pulsar * FAKERA 11 57 21.769299 * 12 00 00.000000 12 00 26.604862 0.00 85 16 41.77889 * 85 00 00.00000 84 55 06.13203 0.00 From catalog imbedded in main SCHED input file. fake circumpolar target for a 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 ra92cm-16-2.set 5 6 7 8 11 13.091 78.356 FAKERA ra92cm-16-2.set 5 9.450 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 136.5 FAKERA 101.1 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