COVER INFORMATION Station: VLA27 (Code Y ) 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 VLA27 (Code Y ) 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: 631.55 631.55 633.54 633.54 Next scan bandwidths: 2.00 2.00 2.00 2.00 17 25 45 J0139+1753 19 35 58 9.1 74.5 -6.1 -57.0 0 1 1 0 17 25 45 17 35 45 =0136+176 19 45 59 11.1 75.8 -5.9 -57.5 600 F 1 2 17 26 08 17 35 45 IIIZW35 19 45 59 9.7 75.8 -6.0 -57.2 -30 1 1 2 17 35 45 17 50 45 --- 20 01 02 12.7 77.8 -5.7 -57.9 870 F 1 6 17 35 45 17 50 45 IIIZW35 20 01 02 12.7 77.8 -5.7 -57.9 -26 1 1 6 17 50 45 18 05 45 --- 20 16 04 15.8 79.7 -5.5 -58.5 874 F 1 10 17 50 45 18 05 45 IIIZW35 20 16 04 15.8 79.7 -5.5 -58.5 -26 1 1 10 18 05 45 18 20 45 --- 20 31 07 18.9 81.7 -5.2 -59.1 874 F 1 13 18 05 45 18 20 45 IIIZW35 20 31 07 18.9 81.7 -5.2 -59.1 -26 1 1 13 18 20 45 18 35 45 --- 20 46 09 22.0 83.6 -5.0 -59.5 874 F 1 17 18 20 45 18 38 30 0234+285 20 48 55 17.7 66.7 -5.8 -60.3 113 1 1 17 18 38 30 18 48 30 --- 20 58 56 19.6 67.8 -5.7 -61.1 600 F 1 19 18 38 53 18 48 30 IIIZW35 20 58 56 24.6 85.3 -4.8 -59.8 -53 1 1 19 18 48 30 19 00 30 --- 21 10 58 27.1 86.9 -4.6 -59.9 667 F 1 22 18 48 30 19 00 30 IIIZW35 21 10 58 27.1 86.9 -4.6 -59.9 -26 1 1 22 19 00 30 19 12 30 --- 21 23 00 29.6 88.6 -4.4 -60.1 694 F 1 25 19 00 30 19 12 30 IIIZW35 21 23 00 29.6 88.6 -4.4 -60.1 -26 1 1 25 19 12 30 19 24 30 --- 21 35 02 32.1 90.2 -4.2 -60.1 694 F 1 28 19 12 30 19 24 45 J0139+1753 21 35 17 33.5 90.1 -4.1 -60.5 -15 1 1 28 19 24 30 19 34 45 =0136+176 21 45 19 35.6 91.5 -3.9 -60.5 585 F 1 31 19 24 30 19 35 00 IIIZW35 21 45 34 34.2 91.7 -4.0 -60.0 -15 1 1 31 19 34 45 19 50 00 --- 22 00 36 37.4 93.9 -3.7 -59.9 885 F 1 34 19 34 45 19 50 15 IIIZW35 22 00 51 37.4 94.0 -3.7 -59.8 -11 1 1 34 19 50 00 20 05 15 --- 22 15 54 40.5 96.3 -3.5 -59.5 889 F 1 38 19 50 00 20 05 30 IIIZW35 22 16 09 40.6 96.3 -3.5 -59.5 -11 1 1 38 20 05 15 20 20 30 --- 22 31 11 43.6 98.8 -3.2 -58.9 889 F 1 42 20 05 15 Schedule for VLA27 (Code Y ) 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 20 45 IIIZW35 22 31 26 43.7 98.9 -3.2 -58.9 -11 1 1 42 20 20 30 20 35 45 --- 22 46 29 46.8 101.5 -3.0 -58.1 889 F 1 45 20 20 30 20 38 30 0234+285 22 49 14 41.5 79.7 -3.8 -68.5 106 1 1 45 20 38 30 20 48 30 --- 22 59 16 43.5 80.8 -3.7 -69.0 600 F 1 48 20 38 53 20 48 45 IIIZW35 22 59 31 49.4 104.0 -2.8 -57.2 -46 1 1 48 20 48 30 21 04 45 --- 23 15 34 52.6 107.4 -2.5 -55.8 914 F 1 52 20 48 30 21 05 00 IIIZW35 23 15 49 52.6 107.4 -2.5 -55.8 -11 1 1 52 21 04 45 21 21 00 --- 23 31 51 55.8 111.2 -2.2 -53.9 949 F 1 56 21 04 45 21 21 15 IIIZW35 23 32 06 55.8 111.3 -2.2 -53.9 -11 1 1 56 21 21 00 21 37 15 --- 23 48 09 58.9 115.6 -1.9 -51.4 949 F 1 60 21 21 00 21 37 30 IIIZW35 23 48 24 58.9 115.7 -1.9 -51.4 -11 1 1 60 21 37 15 21 53 30 --- 00 04 27 61.9 120.7 -1.7 -48.2 949 F 1 63 21 37 15 21 53 45 IIIZW35 00 04 42 61.9 120.8 -1.7 -48.2 -11 1 1 63 21 53 30 22 09 45 --- 00 20 44 64.7 126.7 -1.4 -44.0 949 F 1 67 21 53 30 22 09 45 J0139+1753 00 20 44 66.0 127.3 -1.3 -43.8 -30 1 1 67 22 09 45 22 19 45 =0136+176 00 30 46 67.6 131.8 -1.2 -40.4 570 F 1 70 22 09 45 22 19 45 IIIZW35 00 30 46 66.3 130.9 -1.2 -40.9 -30 1 1 70 22 19 45 22 34 45 --- 00 45 48 68.5 138.3 -1.0 -35.2 870 F 1 73 22 19 45 22 34 45 IIIZW35 00 45 48 68.5 138.3 -1.0 -35.2 -26 1 1 73 22 34 45 22 49 45 --- 01 00 51 70.4 147.0 -0.7 -28.2 874 F 1 77 22 34 45 22 49 45 IIIZW35 01 00 51 70.4 147.0 -0.7 -28.2 -26 1 1 77 22 49 45 23 04 45 --- 01 15 53 71.9 157.2 -0.5 -19.7 874 F 1 81 22 49 45 23 04 45 IIIZW35 01 15 53 71.9 157.2 -0.5 -19.7 -26 1 1 81 23 04 45 23 19 45 --- 01 30 56 72.8 168.6 -0.2 -9.8 874 F 1 84 23 04 45 23 22 30 0234+285 01 33 41 75.3 106.4 -1.1 -65.1 45 1 1 84 23 22 30 23 32 30 --- 01 43 43 77.2 110.5 -0.9 -62.3 600 F 1 87 23 22 53 23 32 30 IIIZW35 01 43 43 73.1 179.0 0.0 -0.9 -129 1 1 87 23 32 30 23 47 30 --- 01 58 45 72.8 191.2 0.2 9.7 771 F 1 90 23 32 30 Schedule for VLA27 (Code Y ) 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 ---------------------------------------------------------------------------------------- --- Start: Sun 10 Feb 2008 Day 41 -- Stop: Mon 11 Feb 2008 Day 42 --- 23 47 30 IIIZW35 01 58 45 72.8 191.2 0.2 9.7 -26 1 1 90 23 47 30 00 02 30 --- 02 13 48 71.9 202.7 0.5 19.5 874 F 1 94 23 47 30 00 02 30 IIIZW35 02 13 48 71.9 202.7 0.5 19.5 -26 1 1 94 00 02 30 00 17 30 --- 02 28 50 70.4 212.9 0.7 28.1 874 F 1 98 00 02 30 00 17 30 IIIZW35 02 28 50 70.4 212.9 0.7 28.1 -26 1 1 98 00 17 30 00 32 30 --- 02 43 53 68.5 221.6 1.0 35.1 874 F 1 101 00 17 30 00 35 15 J0139+1753 02 46 38 68.1 226.8 1.1 39.4 131 1 1 101 00 35 15 00 45 15 =0136+176 02 56 40 66.5 231.4 1.3 42.9 600 F 1 104 00 35 38 00 45 15 IIIZW35 02 56 40 66.7 228.0 1.2 40.1 -32 1 1 104 00 45 15 00 55 45 --- 03 07 12 65.0 232.5 1.4 43.5 598 F 1 106 00 45 15 00 55 45 IIIZW35 03 07 12 65.0 232.5 1.4 43.5 -26 1 1 106 00 55 45 01 06 15 --- 03 17 43 63.2 236.6 1.5 46.4 604 F 1 109 00 55 45 01 06 15 IIIZW35 03 17 43 63.2 236.6 1.5 46.4 -26 1 1 109 01 06 15 01 16 45 --- 03 28 15 61.4 240.3 1.7 48.8 604 F 1 111 01 06 15 01 19 30 0234+285 03 31 00 77.6 248.5 0.9 61.6 90 1 1 111 01 19 30 01 29 30 --- 03 41 02 75.7 252.8 1.0 64.6 600 F 1 114 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 y_01589.9j in /home/arana/cwalker/sched/catalogs/freq.dat In VA mode, only IFs A and D are phased. Setup group: 12 Station: VLA27 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= 989.90 989.90 989.90 989.90 Net SB= U U U U Pol. = RCP LCP RCP LCP BBC = 1 2 3 4 BBC SB= U U U U IF = A D A D The following frequency sets based on this setup were used. Frequency Set: 11 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= 631.55 631.55 633.54 633.54 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 VLA specific information: (LO and FI cards will be written.) VLABAND: VL VLABW: 0000 FEFILTER: 0000 VLAFEAB: -3.20 VLAFECD: -3.20 VLAIF: SYSLIF VLASYNA: 3789.90 VLASYNB: 3789.90 VLAROT: VLBLROT FLUKEA: 100.00 FLUKEB: 200.00 FLUKESET: 0 Details for VLA IFs: LO Sum Frequency span VLBI FIRSTLO VLA IF A: 1589.9000 1589.9000- 1639.9000 989.9000 VLA IF B: 1589.9000 1589.9000- 1639.9000 989.9000 VLA IF C: 1589.9000 1589.9000- 1639.9000 989.9000 VLA IF D: 1589.9000 1589.9000- 1639.9000 989.9000 With new digital patch panel, VLA IF = VLB IF. 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