COVER INFORMATION Station: ARECIBO (Code Ar ) Experiment: BR125B - VLBA+Y27+GBT+Ar 1667MHz obs of OHM IIIZw35 Exp. Code: BR125B Schedule Version: 3.00 Processed by SCHED version: 6.05 June 2006 PI: Tim Robishaw Address: 601 Campbell Hall University of California Berkeley CA 94720 Phone: (510) 643 8530 (work); (510) 655 9188 (home) EMAIL: robishaw@astro.berkeley.edu Fax: (510) 642 3411 Phone during observation: (510) 421 3630 Observing mode: HSA 16-2-2 18cm spectral line observations Notes: Schedule for ARECIBO (Code Ar ) Page 2 BR125B - VLBA+Y27+GBT+Ar 1667MHz obs of OHM IIIZw35 UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. For disks, the footages are really the GBytes TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) SYNC ---------------------------------------------------------------------------------------- --- Sun 10 Feb 2008 Day 41 --- Next scan frequencies: 1621.45 1621.45 1623.44 1623.44 Next BBC frequencies: 778.55 778.55 776.56 776.56 Next scan bandwidths: 2.00 2.00 2.00 2.00 19 24 45 J0139+1753 00 18 45 70.7 88.0 -1.4 -85.6 0 1 1 0 19 24 30 19 34 45 =0136+176 00 28 47 73.0 88.6 -1.2 -85.8 600 F 1 2 19 24 53 19 35 00 IIIZW35 00 29 02 71.9 90.8 -1.3 -83.3 -21 1 1 2 19 34 45 19 50 00 --- 00 44 04 75.5 92.4 -1.0 -83.0 879 F 1 6 19 34 45 19 50 15 IIIZW35 00 44 19 75.5 92.4 -1.0 -83.0 5 1 1 6 19 50 00 20 05 15 --- 00 59 22 79.1 94.5 -0.8 -82.0 900 F 1 10 19 50 00 20 05 30 IIIZW35 00 59 37 79.1 94.6 -0.8 -81.9 5 1 1 10 20 05 15 20 20 30 --- 01 14 39 82.7 98.3 -0.5 -79.4 900 F 1 14 20 05 15 20 20 45 IIIZW35 01 14 54 82.7 98.4 -0.5 -79.3 5 1 1 14 20 20 30 20 35 45 --- 01 29 57 86.2 108.0 -0.3 -70.9 900 F 1 17 20 20 30 20 38 30 0234+285 01 32 42 71.7 52.0 -1.1 -121.4 -193 1 1 17 20 38 30 20 48 30 --- 01 42 44 73.5 47.9 -0.9 -126.5 407 F 1 20 20 38 53 20 48 45 IIIZW35 01 42 59 88.7 158.6 0.0 -21.3 -358 1 1 20 20 48 30 21 04 45 --- 01 59 01 86.4 250.8 0.2 69.8 602 F 1 24 20 48 30 21 05 00 IIIZW35 01 59 16 86.4 251.2 0.2 70.1 4 1 1 24 21 04 45 21 21 00 --- 02 15 19 82.7 261.8 0.5 79.4 960 F 1 28 21 04 45 21 21 15 IIIZW35 02 15 34 82.6 261.8 0.5 79.5 5 1 1 28 21 21 00 21 37 15 --- 02 31 37 78.8 265.6 0.8 82.1 960 F 1 31 21 21 00 21 37 30 IIIZW35 02 31 52 78.8 265.7 0.8 82.1 5 1 1 31 21 37 15 21 53 30 --- 02 47 54 75.0 267.9 1.0 83.0 960 F 1 35 21 37 15 21 53 45 IIIZW35 02 48 09 74.9 267.9 1.1 83.1 5 1 1 35 21 53 30 22 09 45 --- 03 04 12 71.1 269.4 1.3 83.4 960 F 1 39 21 53 30 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: ohmm.set Matches group arlb5c in /home/arana/cwalker/sched/catalogs/freq.dat RX=LBW, with lfbf=5, upper 300 MHz CS 15-May-06 Setup group: 13 Station: ARECIBO Total bit rate: 32 Format: MKIV1:1 Bits per sample: 2 Sample rate: 4.000 Number of channels: 4 Speedup factor: 2.00 Disk used to record data. 1st LO= 2400.00 2400.00 2400.00 2400.00 Net SB= U U U U Pol. = RCP LCP RCP LCP BBC = 1 2 3 4 BBC SB= L L L L IF = A C A C The following frequency sets based on this setup were used. Frequency Set: 12 Based on FREQ, BW, and/or DOPPLER in schedule. Used pcal sets: 1 LO sum= 1621.45 1621.45 1623.44 1623.44 BBC fr= 778.55 778.55 776.56 776.56 Bandwd= 2.000 2.000 2.000 2.000 The following pulse cal sets were used with this setup: Pulse cal detection set: 1 PCAL = OFF PCALXB1= S1 S2 S3 S4 OFF OFF OFF OFF PCALXB2= M1 M2 M3 M4 OFF OFF OFF OFF PCALFR1= 0 0 0 0 0 0 0 0 PCALFR2= 0 0 0 0 0 0 0 0 Track assignments are: track1= 2, 6, 10, 14 barrel=roll_off SOURCE LIST -- BR125B - VLBA+Y27+GBT+Ar 1667MHz obs of OHM IIIZw35 Catalog positions marked with *. Precession of date coordinates is based on stop time of first scan. Names used in schedule marked with *. Short names used in VLA and SNAP files marked with +. Observation date used in B1950/J2000 coordinate conversion (PRECDATE): 1979.900 No adjustments are made for rates (DRA, DDEC). Scan hours are for recording scans only. Baseline hours are only counted for scans above horizon at both ends. Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * IIIZW35 01 41 47.907196 * 01 44 30.540000 01 44 56.944974 0.00 16 51 06.34230 * 17 06 08.60000 17 08 40.93356 0.00 From catalog imbedded in main SCHED input file. Doppler based on heliocentric frame and optical definition. Velocities: 8270.00 8270.00 8270.00 8270.00 8.008 scan hours, 422.407 baseline hours above horizon. * J0139+1753 01 36 59.316870 * 01 39 41.979199 01 40 08.352066 0.70 0136+176 17 37 56.34640 * 17 53 07.54907 17 55 41.45661 0.88 /home/arana/cwalker/sched/catalogs/sources.vlba VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro Doppler based on other sources. 0.833 scan hours, 38.965 baseline hours above horizon. J0237+2848 02 34 55.589592 * 02 37 52.405679 02 38 21.401496 0.23 * 0234+285 28 35 11.40780 * 28 48 08.99005 28 50 26.41686 0.40 J0237+28 /home/arana/cwalker/sched/catalogs/sources.vlba VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro Doppler based on other sources. 0.833 scan hours, 40.911 baseline hours above horizon. 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) IIIZW35 69.1 J0139+1753 68.4 0234+285 84.9 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