COVER INFORMATION Station: VLBA_PT (Code Pt ) Experiment: BB75: Vir A at 18cm // epoch 4 Exp. Code: BB075D Schedule Version: 1.00 Processed by SCHED version: Version of 18 August 1997 PI: Bill Junor Address: Dept. Physics & Astronomy, University of New Mexico 800 Yale Blvd., N.E., Albuquerque, New Mexico, 87131 U.S.A. Phone: 505 846 4948 EMAIL: bjunor@astro.phys.unm.edu Fax: 505 277 1520 Phone during observation: 505 237 2128 Observing mode: Continuum Notes: Non-standard frequency scheme. Will need non-standard patch at VLA. Schedule for VLBA_PT (Code Pt ) Page 2 BB75: Vir A at 18cm // epoch 4 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. ------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes Stop UT LST EL AZ HA UP ParA Dwell (see above) ------------------------------------------------------------------------------- --- Mon 1 Dec 1997 Day 335 --- Next scan frequencies: 1412.99 1412.99 1662.99 1662.99 Next BBC frequencies: 987.01 987.01 737.01 737.01 Next scan bandwidths: 4.00 4.00 4.00 4.00 10 40 00 3C274 08 08 50 27.1 93.3 -4.4 -57.6 0 1 1 0 11 02 00 --- 08 30 54 31.7 96.6 -4.0 -57.2 1320 F 1 4400 11 02 00 3C274 08 30 54 31.7 96.6 -4.0 -57.2 -2 1 1 4400 11 24 00 --- 08 52 58 36.2 100.2 -3.6 -56.4 1318 F 1 8800 11 26 00 3C274 08 54 58 36.6 100.5 -3.6 -56.3 117 1 1 8800 11 48 00 --- 09 17 01 41.0 104.4 -3.2 -55.0 1320 F 1 13200 11 48 00 3C274 09 17 01 41.0 104.4 -3.2 -55.0 -2 1 1 13200 12 10 00 --- 09 39 05 45.4 108.8 -2.9 -53.2 1318 F 1 17600 12 12 00 3C274 09 41 05 45.8 109.2 -2.8 -53.0 117 1 2 17600 12 34 00 --- 10 03 09 50.0 114.1 -2.5 -50.5 1320 R 1 13200 12 34 00 3C274 10 03 09 50.0 114.1 -2.5 -50.5 -2 1 2 13200 12 56 00 --- 10 25 13 54.1 119.9 -2.1 -47.2 1318 R 1 8800 12 58 00 3C274 10 27 13 54.4 120.5 -2.1 -46.8 117 1 2 8800 13 20 00 --- 10 49 17 58.2 127.4 -1.7 -42.2 1320 R 1 4400 13 20 00 3C274 10 49 17 58.2 127.4 -1.7 -42.2 -2 1 2 4400 13 42 00 --- 11 11 20 61.6 135.7 -1.3 -36.2 1318 R 1 0 13 44 00 3C274 11 13 21 61.9 136.6 -1.3 -35.5 117 1 1 0 14 06 00 --- 11 35 24 64.8 146.8 -0.9 -27.6 1320 F 2 4400 14 06 00 3C274 11 35 24 64.8 146.8 -0.9 -27.6 -2 1 1 4400 14 28 00 --- 11 57 28 66.8 159.0 -0.6 -17.7 1318 F 2 8800 14 28 00 3C273B 11 57 28 56.9 165.5 -0.5 -12.0 -22 1 1 8800 14 33 00 --- 12 02 29 57.2 167.7 -0.4 -10.1 278 F 2 9800 14 33 00 3C274 12 02 29 67.2 162.0 -0.5 -15.2 -22 1 1 9800 14 50 00 --- 12 19 31 68.0 172.7 -0.2 -6.2 998 F 2 13200 14 50 00 3C274 12 19 31 68.0 172.7 -0.2 -6.2 -2 1 1 13200 15 12 00 --- 12 41 35 68.0 187.1 0.2 6.0 1318 F 2 17600 Schedule for VLBA_PT (Code Pt ) Page 3 BB75: Vir A at 18cm // epoch 4 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. ------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes Stop UT LST EL AZ HA UP ParA Dwell (see above) ------------------------------------------------------------------------------- --- Mon 1 Dec 1997 Day 335 --- 15 12 00 OQ208 12 41 35 70.9 102.0 -1.4 -66.8 -59 1 2 17600 15 17 00 --- 12 46 36 71.9 103.3 -1.3 -66.1 241 R 2 16600 15 19 00 3C274 12 48 36 67.7 191.6 0.3 9.8 59 1 2 16600 15 36 00 --- 13 05 39 66.7 202.0 0.6 18.5 1020 R 2 13200 15 38 00 3C274 13 07 39 66.5 203.2 0.6 19.5 117 1 2 13200 16 00 00 --- 13 29 43 64.3 215.0 1.0 29.0 1320 R 2 8800 16 00 00 3C274 13 29 43 64.3 215.0 1.0 29.0 -2 1 2 8800 16 22 00 --- 13 51 46 61.4 225.0 1.4 36.7 1318 R 2 4400 16 24 00 3C274 13 53 47 61.1 225.8 1.4 37.3 117 1 2 4400 16 46 00 --- 14 15 50 57.6 233.8 1.8 43.1 1320 R 2 0 16 46 00 3C274 14 15 50 57.6 233.8 1.8 43.1 -2 1 3 0 17 08 00 --- 14 37 54 53.8 240.6 2.1 47.5 1318 F 1 4400 17 08 00 OQ208 14 37 54 81.2 230.7 0.5 46.6 -57 1 3 4400 17 13 00 --- 14 42 55 80.4 235.2 0.6 50.5 243 F 1 5400 17 13 00 3C274 14 42 55 52.9 241.9 2.2 48.3 -57 1 3 5400 17 30 00 --- 14 59 58 49.7 246.3 2.5 50.7 963 F 1 8800 17 30 00 3C274 14 59 58 49.7 246.3 2.5 50.7 -2 1 3 8800 17 52 00 --- 15 22 01 45.5 251.2 2.9 53.2 1318 F 1 13200 17 52 00 3C274 15 22 01 45.5 251.2 2.9 53.2 -2 1 3 13200 18 14 00 --- 15 44 05 41.1 255.5 3.2 55.0 1318 F 1 17600 18 14 00 3C274 15 44 05 41.1 255.5 3.2 55.0 -2 1 4 17600 18 30 00 --- 16 00 07 37.9 258.4 3.5 56.0 958 R 1 14400 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: bj18_20cm.set Matches group v20cm_2 in /home/arana/cwalker/sched/catalogs/freq.dat FD filtered above 1760. SC filtered above 1740. Setup group: 1 Station: VLBA Total bit rate: 32 Format: VLBA1:4 Bits per sample: 1 Sample rate: 8.000 Number of channels: 4 Passes/head pos: 2 Speedup factor: 4.00 Tape speeds: Low density - 66.665 ips, High density - 40.00 ips Time per pass for 17600 ft, High density tapes is: 01:28:00 LO sum= 1412.99 1412.99 1662.99 1662.99 1st LO= 2400.00 2400.00 2400.00 2400.00 Net SB= U U U U Pol. = RCP LCP RCP LCP BBC fr= 987.01 987.01 737.01 737.01 Bandwd= 4.00 4.00 4.00 4.00 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 Pulse cal detection. PCAL = 1MHz PCALXB1= S1 S3 S1 S3 S1 S3 S1 S3 PCALXB2= S2 S4 S2 S4 S2 S4 S2 S4 PCALFR1= 10 10 3010 3010 0 0 1010 1010 PCALFR2= 10 10 3010 3010 0 0 1010 1010 Track assignments are: track1= 2, 10, 18, 26 track2= 3, 11, 19, 27 barrel=roll_auto SOURCE LIST -- BB75: Vir A at 18cm // epoch 4 Catalog positions marked with *. Position of date is for stop time of first scan. Names used in schedule marked with *. Short names used in VLA and SNAP files marked with +. Source Source position (RA/Dec) (B1950) (J2000) (Date) J1229+0203 12 26 33.24307 * 12 29 06.69970 12 28 59.34751 1226+023 02 19 43.2317 * 02 03 08.5980 02 03 55.5761 3C273 /home/arana/cwalker/sched/catalogs/sources.vlba * 3C273B VLA Calibrator Source List J1229+02 J1230+1223 12 28 17.56642 * 12 30 49.42340 12 30 42.00538 1228+126 12 40 01.6757 * 12 23 28.0442 12 24 11.6871 * 3C274 /home/arana/cwalker/sched/catalogs/sources.vlba J1230+12 USNO - Ref Frame 1995-1, Eubanks Mar 1995 J1407+2827 14 04 45.61099 * 14 07 00.39442 14 06 52.99197 1404+286 28 41 29.1724 * 28 27 14.6900 28 27 53.3073 J1407+28 /home/arana/cwalker/sched/catalogs/sources.vlba * OQ208 USNO - Ref Frame 1995-1, Eubanks Mar 1995