COVER INFORMATION Station: VLBA_BR (Code Br ) 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_BR (Code Br ) 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 07 22 35 17.8 91.2 -5.1 -43.1 0 1 1 0 11 02 00 --- 07 44 39 21.5 95.4 -4.8 -42.9 1320 F 1 4400 11 02 00 3C274 07 44 39 21.5 95.4 -4.8 -42.9 -2 1 1 4400 11 24 00 --- 08 06 42 25.2 99.7 -4.4 -42.3 1318 F 1 8800 11 26 00 3C274 08 08 43 25.5 100.1 -4.4 -42.3 117 1 1 8800 11 48 00 --- 08 30 46 29.1 104.6 -4.0 -41.4 1320 F 1 13200 11 48 00 3C274 08 30 46 29.1 104.6 -4.0 -41.4 -2 1 1 13200 12 10 00 --- 08 52 50 32.6 109.4 -3.6 -40.1 1318 F 1 17600 12 12 00 3C274 08 54 50 32.9 109.8 -3.6 -40.0 117 1 2 17600 12 34 00 --- 09 16 54 36.3 114.9 -3.2 -38.3 1320 R 1 13200 12 34 00 3C274 09 16 54 36.3 114.9 -3.2 -38.3 -2 1 2 13200 12 56 00 --- 09 38 57 39.6 120.3 -2.9 -36.1 1318 R 1 8800 12 58 00 3C274 09 40 58 39.9 120.8 -2.8 -35.9 117 1 2 8800 13 20 00 --- 10 03 01 42.9 126.8 -2.5 -33.2 1320 R 1 4400 13 20 00 3C274 10 03 01 42.9 126.8 -2.5 -33.2 -2 1 2 4400 13 42 00 --- 10 25 05 45.8 133.2 -2.1 -29.9 1318 R 1 0 13 44 00 3C274 10 27 05 46.0 133.8 -2.1 -29.6 118 1 1 0 14 06 00 --- 10 49 09 48.5 140.8 -1.7 -25.6 1320 F 2 4400 14 06 00 3C274 10 49 09 48.5 140.8 -1.7 -25.6 -2 1 1 4400 14 28 00 --- 11 11 13 50.6 148.4 -1.3 -21.0 1318 F 2 8800 14 28 00 3C273B 11 11 13 41.0 153.9 -1.3 -17.1 -21 1 1 8800 14 33 00 --- 11 16 13 41.3 155.4 -1.2 -16.1 279 F 2 9800 14 33 00 3C274 11 16 13 51.0 150.3 -1.2 -19.8 -21 1 1 9800 14 50 00 --- 11 33 16 52.3 156.7 -1.0 -15.7 999 F 2 13200 14 50 00 3C274 11 33 16 52.3 156.7 -1.0 -15.7 -2 1 1 13200 15 12 00 --- 11 55 20 53.5 165.4 -0.6 -9.9 1318 F 2 17600 Schedule for VLBA_BR (Code Br ) 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 11 55 20 58.0 115.9 -2.2 -43.1 -35 1 2 17600 15 17 00 --- 12 00 21 58.7 117.4 -2.1 -42.4 265 R 2 16600 15 19 00 3C274 12 02 21 53.8 168.2 -0.5 -8.0 84 1 2 16600 15 36 00 --- 12 19 24 54.2 175.3 -0.2 -3.2 1020 R 2 13200 15 38 00 3C274 12 21 24 54.2 176.1 -0.2 -2.7 117 1 2 13200 16 00 00 --- 12 43 28 54.2 185.3 0.2 3.6 1320 R 2 8800 16 00 00 3C274 12 43 28 54.2 185.3 0.2 3.6 -2 1 2 8800 16 22 00 --- 13 05 31 53.5 194.4 0.6 9.8 1318 R 2 4400 16 24 00 3C274 13 07 32 53.5 195.2 0.6 10.3 117 1 2 4400 16 46 00 --- 13 29 35 52.2 203.9 1.0 16.1 1320 R 2 0 16 46 00 3C274 13 29 35 52.2 203.9 1.0 16.1 -2 1 3 0 17 08 00 --- 13 51 39 50.5 212.1 1.3 21.3 1318 F 1 4400 17 08 00 OQ208 13 51 39 70.1 170.1 -0.3 -7.5 -41 1 3 4400 17 13 00 --- 13 56 40 70.2 173.3 -0.2 -5.0 259 F 1 5400 17 13 00 3C274 13 56 40 50.0 213.9 1.4 22.4 -42 1 3 5400 17 30 00 --- 14 13 42 48.3 219.7 1.7 25.9 978 F 1 8800 17 30 00 3C274 14 13 42 48.3 219.7 1.7 25.9 -2 1 3 8800 17 52 00 --- 14 35 46 45.8 226.7 2.1 29.8 1318 F 1 13200 17 52 00 3C274 14 35 46 45.8 226.7 2.1 29.8 -2 1 3 13200 18 14 00 --- 14 57 50 43.0 233.1 2.5 33.1 1318 F 1 17600 18 14 00 3C274 14 57 50 43.0 233.1 2.5 33.1 -2 1 4 17600 18 30 00 --- 15 13 52 40.8 237.5 2.7 35.2 958 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