COVER INFORMATION Station: GBT_VLBA (Code Gb ) 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 GBT_VLBA (Code Gb ) 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: 678.55 678.55 676.56 676.56 Next scan bandwidths: 2.00 2.00 2.00 2.00 15 30 00 J0139+1753 19 31 00 9.3 74.4 -6.2 -52.5 0 1 1 0 15 30 00 15 40 00 =0136+176 19 41 02 11.2 75.9 -6.0 -53.0 600 F 1 2 15 30 23 15 40 00 IIIZW35 19 41 02 9.8 75.8 -6.1 -52.6 -31 1 1 2 15 40 00 15 55 00 --- 19 56 05 12.7 78.0 -5.8 -53.3 869 F 1 6 15 40 00 15 55 00 IIIZW35 19 56 05 12.7 78.0 -5.8 -53.3 -20 1 1 6 15 55 00 16 10 00 --- 20 11 07 15.6 80.2 -5.6 -53.9 880 F 1 10 15 55 00 16 10 00 IIIZW35 20 11 07 15.6 80.2 -5.6 -53.9 -20 1 1 10 16 10 00 16 25 00 --- 20 26 10 18.5 82.4 -5.3 -54.4 880 F 1 13 16 10 00 16 25 00 IIIZW35 20 26 10 18.5 82.4 -5.3 -54.4 -20 1 1 13 16 25 00 16 40 00 --- 20 41 12 21.4 84.7 -5.1 -54.7 880 F 1 17 16 25 00 16 42 45 0234+285 20 43 57 18.5 67.4 -5.9 -55.6 81 1 1 17 16 42 45 16 52 45 --- 20 53 59 20.3 68.7 -5.7 -56.4 600 F 1 19 16 43 08 16 52 45 IIIZW35 20 53 59 23.9 86.6 -4.8 -54.9 -86 1 1 19 16 52 45 17 03 45 --- 21 05 01 26.1 88.2 -4.7 -55.0 574 F 1 22 16 52 45 17 03 45 IIIZW35 21 05 01 26.1 88.2 -4.7 -55.0 -20 1 1 22 17 03 45 17 14 45 --- 21 16 03 28.2 89.9 -4.5 -55.1 640 F 1 25 17 03 45 17 14 45 IIIZW35 21 16 03 28.2 89.9 -4.5 -55.1 -20 1 1 25 17 14 45 17 25 45 --- 21 27 04 30.4 91.7 -4.3 -55.0 640 F 1 27 17 14 45 17 25 45 J0139+1753 21 27 04 31.8 91.7 -4.2 -55.4 -31 1 1 27 17 25 45 17 35 45 =0136+176 21 37 06 33.7 93.3 -4.1 -55.3 569 F 1 30 17 25 45 17 35 45 IIIZW35 21 37 06 32.4 93.3 -4.1 -54.9 -31 1 1 30 17 35 45 17 50 45 --- 21 52 09 35.3 95.8 -3.9 -54.6 869 F 1 33 17 35 45 17 50 45 IIIZW35 21 52 09 35.3 95.8 -3.9 -54.6 -20 1 1 33 17 50 45 18 05 45 --- 22 07 11 38.2 98.4 -3.6 -54.2 880 F 1 37 17 50 45 18 05 45 IIIZW35 22 07 11 38.2 98.4 -3.6 -54.2 -20 1 1 37 18 05 45 18 20 45 --- 22 22 14 41.1 101.1 -3.4 -53.5 880 F 1 41 18 05 45 Schedule for GBT_VLBA (Code Gb ) 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 --- 18 20 45 IIIZW35 22 22 14 41.1 101.1 -3.4 -53.5 -20 1 1 41 18 20 45 18 35 45 --- 22 37 16 44.0 104.1 -3.1 -52.7 880 F 1 44 18 20 45 18 38 30 0234+285 22 40 01 40.3 82.3 -4.0 -62.4 66 1 1 44 18 38 30 18 48 30 --- 22 50 03 42.3 83.6 -3.8 -62.7 600 F 1 47 18 38 53 18 48 30 IIIZW35 22 50 03 46.4 106.7 -2.9 -51.7 -103 1 1 47 18 48 30 19 00 30 --- 23 02 05 48.6 109.4 -2.7 -50.7 617 F 1 50 18 48 30 19 00 30 IIIZW35 23 02 05 48.6 109.4 -2.7 -50.7 -20 1 1 50 19 00 30 19 12 30 --- 23 14 07 50.8 112.2 -2.5 -49.4 700 F 1 52 19 00 30 19 12 30 IIIZW35 23 14 07 50.8 112.2 -2.5 -49.4 -20 1 1 52 19 12 30 19 24 30 --- 23 26 09 53.0 115.3 -2.3 -47.8 700 F 1 55 19 12 30 19 24 45 J0139+1753 23 26 24 54.4 115.7 -2.2 -47.9 -16 1 1 55 19 24 30 19 34 45 =0136+176 23 36 26 56.2 118.6 -2.1 -46.3 584 F 1 58 19 24 30 19 35 00 IIIZW35 23 36 41 54.8 118.2 -2.1 -46.2 -15 1 1 58 19 34 45 19 50 00 --- 23 51 43 57.4 122.8 -1.9 -43.6 885 F 1 62 19 34 45 19 50 15 IIIZW35 23 51 58 57.4 122.9 -1.9 -43.5 -8 1 1 62 19 50 00 20 05 15 --- 00 07 01 59.8 128.0 -1.6 -40.2 892 F 1 65 19 50 00 20 05 30 IIIZW35 00 07 16 59.9 128.1 -1.6 -40.2 -8 1 1 65 20 05 15 20 20 30 --- 00 22 18 62.1 133.9 -1.4 -36.2 892 F 1 69 20 05 15 20 20 45 IIIZW35 00 22 33 62.1 134.0 -1.4 -36.1 -8 1 1 69 20 20 30 20 35 45 --- 00 37 36 64.1 140.7 -1.1 -31.3 892 F 1 73 20 20 30 20 38 30 0234+285 00 40 21 63.8 102.6 -2.0 -60.8 12 1 1 73 20 38 30 20 48 30 --- 00 50 23 65.7 105.1 -1.8 -59.7 600 F 1 75 20 38 53 20 48 45 IIIZW35 00 50 38 65.6 147.1 -0.9 -26.5 -151 1 1 75 20 48 30 21 04 45 --- 01 06 40 67.1 155.9 -0.6 -19.6 809 F 1 79 20 48 30 21 05 00 IIIZW35 01 06 56 67.1 156.0 -0.6 -19.5 -8 1 1 79 21 04 45 21 21 00 --- 01 22 58 68.2 165.8 -0.4 -11.6 952 F 1 83 21 04 45 21 21 15 IIIZW35 01 23 13 68.2 165.9 -0.4 -11.5 -9 1 1 83 21 21 00 21 37 15 --- 01 39 16 68.7 176.3 -0.1 -3.1 951 F 1 87 21 21 00 Schedule for GBT_VLBA (Code Gb ) 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 --- 21 37 30 IIIZW35 01 39 31 68.7 176.4 -0.1 -2.9 -9 1 1 87 21 37 15 21 53 30 --- 01 55 33 68.6 187.0 0.2 5.7 951 F 1 91 21 37 15 21 53 45 IIIZW35 01 55 49 68.6 187.1 0.2 5.8 -9 1 1 91 21 53 30 22 09 45 --- 02 11 51 67.9 197.3 0.4 14.1 951 F 1 95 21 53 30 22 09 45 J0139+1753 02 11 51 68.4 200.8 0.5 17.0 -38 1 1 95 22 09 45 22 19 45 =0136+176 02 21 53 67.6 206.8 0.7 21.8 562 F 1 97 22 09 45 22 19 45 IIIZW35 02 21 53 67.2 203.3 0.6 18.9 -38 1 1 97 22 19 45 22 34 45 --- 02 36 55 65.9 211.7 0.9 25.5 862 F 1 101 22 19 45 22 34 45 IIIZW35 02 36 55 65.9 211.7 0.9 25.5 -20 1 1 101 22 34 45 22 49 45 --- 02 51 58 64.2 219.2 1.1 31.2 880 F 1 104 22 34 45 22 49 45 IIIZW35 02 51 58 64.2 219.2 1.1 31.2 -20 1 1 104 22 49 45 23 04 45 --- 03 07 00 62.2 225.8 1.4 36.0 880 F 1 108 22 49 45 23 04 45 IIIZW35 03 07 00 62.2 225.8 1.4 36.0 -20 1 1 108 23 04 45 23 19 45 --- 03 22 03 59.9 231.7 1.6 40.0 880 F 1 112 23 04 45 23 22 30 0234+285 03 24 48 76.4 228.6 0.8 42.1 84 1 1 112 23 22 30 23 32 30 --- 03 34 50 74.9 234.9 0.9 47.0 600 F 1 114 23 22 53 23 32 30 IIIZW35 03 34 50 57.9 236.1 1.8 42.9 -82 1 1 114 23 32 30 23 47 30 --- 03 49 52 55.4 240.8 2.1 45.7 818 F 1 118 23 32 30 --- Start: Sun 10 Feb 2008 Day 41 -- Stop: Mon 11 Feb 2008 Day 42 --- 23 47 30 IIIZW35 03 49 52 55.4 240.8 2.1 45.7 -20 1 1 118 23 47 30 00 02 30 --- 04 04 55 52.8 245.0 2.3 48.0 880 F 1 121 23 47 30 00 02 30 IIIZW35 04 04 55 52.8 245.0 2.3 48.0 -20 1 1 121 00 02 30 00 17 30 --- 04 19 57 50.1 248.8 2.6 49.8 880 F 1 125 00 02 30 00 17 30 IIIZW35 04 19 57 50.1 248.8 2.6 49.8 -20 1 1 125 00 17 30 00 32 30 --- 04 35 00 47.3 252.2 2.8 51.3 880 F 1 129 00 17 30 00 35 15 J0139+1753 04 37 45 46.4 254.8 3.0 52.6 131 1 1 129 00 35 15 00 45 15 =0136+176 04 47 47 44.5 256.8 3.1 53.3 600 F 1 131 00 35 38 00 45 15 IIIZW35 04 47 47 44.9 255.0 3.0 52.3 -32 1 1 131 00 45 15 00 55 45 --- 04 58 18 42.9 257.1 3.2 53.0 598 F 1 134 00 45 15 Schedule for GBT_VLBA (Code Gb ) Page 5 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 ---------------------------------------------------------------------------------------- --- Mon 11 Feb 2008 Day 42 --- 00 55 45 IIIZW35 04 58 18 42.9 257.1 3.2 53.0 -20 1 1 134 00 55 45 01 06 15 --- 05 08 50 40.9 259.1 3.4 53.6 610 F 1 136 00 55 45 01 06 15 IIIZW35 05 08 50 40.9 259.1 3.4 53.6 -20 1 1 136 01 06 15 01 16 45 --- 05 19 22 38.9 261.0 3.6 54.1 610 F 1 139 01 06 15 01 19 30 0234+285 05 22 07 54.9 266.7 2.7 63.2 86 1 1 139 01 19 30 01 29 30 --- 05 32 09 52.9 268.3 2.9 63.4 600 F 1 141 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 gbt18cm in /home/arana/cwalker/sched/catalogs/freq.dat LO1=4.550, LO2=12.75, LO3=10.5 Setup group: 11 Station: GBT_VLBA 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= 2300.00 2300.00 2300.00 2300.00 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: 4 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= 678.55 678.55 676.56 676.56 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