COVER INFORMATION Station: VLBA_BR (Code Br ) 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 VLBA_BR (Code Br ) 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. Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- 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 17 14 45 IIIZW35 18 36 40 1.9 66.1 -7.1 D -39.7 0 1 1 0 17 14 45 17 25 45 --- 18 47 42 3.5 68.1 -7.0 H -40.4 0 F 1 3 17 15 08 17 25 45 J0139+1753 18 47 42 4.9 68.4 -6.9 -40.7 -9 1 1 3 17 25 45 17 35 45 =0136+176 18 57 44 6.5 70.2 -6.7 -41.3 591 F 1 5 17 25 45 17 35 45 IIIZW35 18 57 44 5.1 69.9 -6.8 -41.0 -9 1 1 5 17 35 45 17 50 45 --- 19 12 46 7.5 72.6 -6.5 -41.8 891 F 1 9 17 35 45 17 50 45 IIIZW35 19 12 46 7.5 72.6 -6.5 -41.8 -4 1 1 9 17 50 45 18 05 45 --- 19 27 49 9.9 75.3 -6.3 -42.5 896 F 1 12 17 50 45 18 05 45 IIIZW35 19 27 49 9.9 75.3 -6.3 -42.5 -4 1 1 12 18 05 45 18 20 45 --- 19 42 51 12.3 78.0 -6.0 -43.1 896 F 1 16 18 05 45 18 20 45 IIIZW35 19 42 51 12.3 78.0 -6.0 -43.1 -4 1 1 16 18 20 45 18 35 45 --- 19 57 54 14.8 80.7 -5.8 -43.6 896 F 1 20 18 20 45 18 38 30 0234+285 20 00 39 15.3 63.6 -6.6 -43.0 148 1 1 20 18 38 30 18 48 30 --- 20 10 41 16.8 65.3 -6.5 -43.8 600 F 1 22 18 38 53 18 48 30 IIIZW35 20 10 41 16.9 83.0 -5.6 -43.9 -18 1 1 22 18 48 30 19 00 30 --- 20 22 43 18.9 85.1 -5.4 -44.1 702 F 1 25 18 48 30 19 00 30 IIIZW35 20 22 43 18.9 85.1 -5.4 -44.1 -4 1 1 25 19 00 30 19 12 30 --- 20 34 45 20.9 87.3 -5.2 -44.2 716 F 1 28 19 00 30 19 12 30 IIIZW35 20 34 45 20.9 87.3 -5.2 -44.2 -4 1 1 28 19 12 30 19 24 30 --- 20 46 47 22.9 89.6 -5.0 -44.3 716 F 1 31 19 12 30 19 24 45 J0139+1753 20 47 02 24.3 89.9 -4.9 -44.5 6 1 1 31 19 24 30 19 34 45 =0136+176 20 57 03 26.0 91.8 -4.7 -44.5 600 F 1 33 19 24 30 19 35 00 IIIZW35 20 57 18 24.7 91.5 -4.8 -44.3 6 1 1 33 19 34 45 19 50 00 --- 21 12 21 27.2 94.4 -4.5 -44.1 900 F 1 37 19 34 45 19 50 15 IIIZW35 21 12 36 27.2 94.4 -4.5 -44.1 10 1 1 37 19 50 00 20 05 15 --- 21 27 38 29.7 97.4 -4.3 -43.8 900 F 1 41 19 50 00 Schedule for VLBA_BR (Code Br ) Page 3 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. Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- 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 --- 20 05 30 IIIZW35 21 27 53 29.8 97.4 -4.3 -43.8 10 1 1 41 20 05 15 20 20 30 --- 21 42 56 32.2 100.5 -4.0 -43.4 900 F 1 44 20 05 15 20 20 45 IIIZW35 21 43 11 32.3 100.5 -4.0 -43.4 10 1 1 44 20 20 30 20 35 45 --- 21 58 13 34.7 103.7 -3.8 -42.7 900 F 1 48 20 20 30 20 38 30 0234+285 22 00 59 34.4 83.6 -4.6 -49.2 146 1 1 48 20 38 30 20 48 30 --- 22 11 00 36.1 85.4 -4.5 -49.4 600 F 1 50 20 38 53 20 48 45 IIIZW35 22 11 15 36.8 106.5 -3.6 -42.0 -5 1 1 50 20 48 30 21 04 45 --- 22 27 18 39.4 110.1 -3.3 -41.0 955 F 1 54 20 48 30 21 05 00 IIIZW35 22 27 33 39.4 110.2 -3.3 -41.0 10 1 1 54 21 04 45 21 21 00 --- 22 43 36 41.9 114.1 -3.0 -39.6 960 F 1 58 21 04 45 21 21 15 IIIZW35 22 43 51 41.9 114.1 -3.0 -39.6 10 1 1 58 21 21 00 21 37 15 --- 22 59 53 44.3 118.2 -2.8 -38.0 960 F 1 62 21 21 00 21 37 30 IIIZW35 23 00 08 44.4 118.3 -2.7 -38.0 10 1 1 62 21 37 15 21 53 30 --- 23 16 11 46.7 122.7 -2.5 -36.0 960 F 1 66 21 37 15 21 53 45 IIIZW35 23 16 26 46.7 122.7 -2.5 -36.0 10 1 1 66 21 53 30 22 09 45 --- 23 32 29 48.9 127.4 -2.2 -33.7 960 F 1 70 21 53 30 22 09 45 J0139+1753 23 32 29 50.2 128.2 -2.1 -33.4 -9 1 1 70 22 09 45 22 19 45 =0136+176 23 42 30 51.5 131.4 -2.0 -31.8 591 F 1 72 22 09 45 22 19 45 IIIZW35 23 42 30 50.2 130.5 -2.0 -32.1 -9 1 1 72 22 19 45 22 34 45 --- 23 57 33 52.0 135.4 -1.8 -29.4 891 F 1 76 22 19 45 22 34 45 IIIZW35 23 57 33 52.0 135.4 -1.8 -29.4 -4 1 1 76 22 34 45 22 49 45 --- 00 12 35 53.7 140.7 -1.5 -26.3 896 F 1 80 22 34 45 22 49 45 IIIZW35 00 12 35 53.7 140.7 -1.5 -26.3 -4 1 1 80 22 49 45 23 04 45 --- 00 27 38 55.2 146.3 -1.3 -22.8 896 F 1 83 22 49 45 23 04 45 IIIZW35 00 27 38 55.2 146.3 -1.3 -22.8 -4 1 1 83 23 04 45 23 19 45 --- 00 42 40 56.5 152.3 -1.0 -18.9 896 F 1 87 23 04 45 23 22 30 0234+285 00 45 26 61.0 121.4 -1.9 -40.6 138 1 1 87 23 22 30 23 32 30 --- 00 55 27 62.4 124.9 -1.7 -38.6 600 F 1 89 23 22 53 Schedule for VLBA_BR (Code Br ) Page 4 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. Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- 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 --- 23 32 30 IIIZW35 00 55 27 57.4 157.7 -0.8 -15.4 -28 1 1 89 23 32 30 23 47 30 --- 01 10 30 58.2 164.2 -0.6 -10.9 872 F 1 93 23 32 30 --- Start: Sun 10 Feb 2008 Day 41 -- Stop: Mon 11 Feb 2008 Day 42 --- 23 47 30 IIIZW35 01 10 30 58.2 164.2 -0.6 -10.9 -4 1 1 93 23 47 30 00 02 30 --- 01 25 32 58.8 171.0 -0.3 -6.3 896 F 1 97 23 47 30 00 02 30 IIIZW35 01 25 32 58.8 171.0 -0.3 -6.3 -4 1 1 97 00 02 30 00 17 30 --- 01 40 35 59.0 178.0 -0.1 -1.4 896 F 1 100 00 02 30 00 17 30 IIIZW35 01 40 35 59.0 178.0 -0.1 -1.4 -4 1 1 100 00 17 30 00 32 30 --- 01 55 37 58.9 184.9 0.2 3.5 896 F 1 104 00 17 30 00 35 15 J0139+1753 01 58 23 59.6 188.6 0.3 6.0 157 1 1 104 00 35 15 00 45 15 =0136+176 02 08 24 59.3 193.2 0.5 9.2 600 F 1 106 00 35 38 00 45 15 IIIZW35 02 08 24 58.6 190.8 0.4 7.5 -8 1 1 106 00 45 15 00 55 45 --- 02 18 56 58.2 195.6 0.6 10.8 622 F 1 109 00 45 15 00 55 45 IIIZW35 02 18 56 58.2 195.6 0.6 10.8 -4 1 1 109 00 55 45 01 06 15 --- 02 29 28 57.7 200.2 0.7 14.0 626 F 1 111 00 55 45 01 06 15 IIIZW35 02 29 28 57.7 200.2 0.7 14.0 -4 1 1 111 01 06 15 01 16 45 --- 02 39 59 57.0 204.7 0.9 17.0 626 F 1 114 01 06 15 01 19 30 0234+285 02 42 45 70.7 182.9 0.1 2.2 132 1 1 114 01 19 30 01 29 30 --- 02 52 47 70.5 189.5 0.2 7.2 600 F 1 116 01 19 53 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 v20cm_2 in /home/arana/cwalker/sched/catalogs/freq.dat FD filtered above 1760. SC filtered above 1740. Setup group: 9 Station: VLBA_BR Total bit rate: 32 Format: VLBA1:1 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 VLBA FE= 20cm omit 20cm omit VLBA Synth= 15.4 2.4 15.4 The following frequency sets based on this setup were used. Frequency Set: 9 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