COVER INFORMATION Station: VLBA_LA (Code La ) Experiment: BB75: Vir A at 18cm // epoch 1 Exp. Code: BB075 Schedule Version: 1.00 Processed by SCHED version: 10 Feb 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_LA (Code La ) Page 2 BB75: Vir A at 18cm // epoch 1 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) ------------------------------------------------------------------------------- --- Tue 25 Feb 1997 Day 56 --- 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 05 10 00 3C274 08 25 27 30.4 96.6 -4.1 -55.6 0 1 1 0 05 32 00 --- 08 47 30 34.8 100.3 -3.7 -54.8 1320 F 1 4400 05 32 00 3C274 08 47 30 34.8 100.3 -3.7 -54.8 -2 1 1 4400 05 54 00 --- 09 09 34 39.2 104.2 -3.4 -53.6 1318 F 1 8800 05 56 00 3C274 09 11 34 39.6 104.6 -3.3 -53.5 117 1 1 8800 06 18 00 --- 09 33 38 43.9 109.0 -3.0 -51.8 1320 F 1 13200 06 18 00 3C274 09 33 38 43.9 109.0 -3.0 -51.8 -2 1 1 13200 06 40 00 --- 09 55 42 48.0 113.9 -2.6 -49.4 1318 F 1 17600 06 42 00 3C274 09 57 42 48.4 114.4 -2.5 -49.2 117 1 2 17600 07 04 00 --- 10 19 46 52.4 120.1 -2.2 -46.0 1320 R 1 13200 07 04 00 3C274 10 19 46 52.4 120.1 -2.2 -46.0 -2 1 2 13200 07 26 00 --- 10 41 49 56.1 126.7 -1.8 -41.7 1318 R 1 8800 07 28 00 3C274 10 43 49 56.4 127.4 -1.8 -41.3 117 1 2 8800 07 50 00 --- 11 05 53 59.8 135.4 -1.4 -35.7 1320 R 1 4400 07 50 00 3C274 11 05 53 59.8 135.4 -1.4 -35.7 -2 1 2 4400 08 12 00 --- 11 27 57 62.7 144.9 -1.0 -28.6 1318 R 1 0 08 14 00 3C274 11 29 57 62.9 145.8 -1.0 -27.8 117 1 1 0 08 36 00 --- 11 52 01 65.1 157.1 -0.6 -18.9 1320 F 2 4400 08 36 00 3C274 11 52 01 65.1 157.1 -0.6 -18.9 -2 1 1 4400 08 58 00 --- 12 14 04 66.3 169.8 -0.3 -8.4 1318 F 2 8800 08 58 00 3C273B 12 14 04 56.1 173.3 -0.2 -5.4 -22 1 1 8800 09 03 00 --- 12 19 05 56.2 175.5 -0.2 -3.6 278 F 2 9800 09 03 00 3C274 12 19 05 66.5 172.9 -0.2 -5.9 -23 1 1 9800 09 20 00 --- 12 36 08 66.6 183.3 0.1 2.8 997 F 2 13200 09 20 00 3C274 12 36 08 66.6 183.3 0.1 2.8 -2 1 1 13200 09 42 00 --- 12 58 11 65.8 196.6 0.5 13.7 1318 F 2 17600 Schedule for VLBA_LA (Code La ) Page 3 BB75: Vir A at 18cm // epoch 1 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) ------------------------------------------------------------------------------- --- Tue 25 Feb 1997 Day 56 --- 09 42 00 OQ208 12 58 11 73.8 111.9 -1.1 -58.9 -58 1 2 17600 09 47 00 --- 13 03 12 74.7 114.0 -1.1 -57.4 242 R 2 16600 09 49 00 3C274 13 05 13 65.4 200.6 0.6 17.0 60 1 2 16600 10 06 00 --- 13 22 15 63.9 209.7 0.9 24.3 1020 R 2 13200 10 08 00 3C274 13 24 16 63.7 210.7 0.9 25.1 117 1 2 13200 10 30 00 --- 13 46 19 61.1 220.9 1.3 32.9 1320 R 2 8800 10 30 00 3C274 13 46 19 61.1 220.9 1.3 32.9 -2 1 2 8800 10 52 00 --- 14 08 23 57.9 229.4 1.6 39.1 1318 R 2 4400 10 54 00 3C274 14 10 23 57.6 230.2 1.7 39.6 117 1 2 4400 11 16 00 --- 14 32 27 54.0 237.3 2.0 44.3 1320 R 2 0 11 16 00 3C274 14 32 27 54.0 237.3 2.0 44.3 -2 1 3 0 11 38 00 --- 14 54 31 50.1 243.3 2.4 47.9 1318 F 1 4400 11 38 00 OQ208 14 54 31 77.6 237.4 0.8 51.0 -57 1 3 4400 11 43 00 --- 14 59 31 76.7 240.4 0.9 53.4 243 F 1 5400 11 43 00 3C274 14 59 31 49.2 244.6 2.5 48.6 -57 1 3 5400 12 00 00 --- 15 16 34 46.0 248.6 2.8 50.7 963 F 1 8800 12 00 00 3C274 15 16 34 46.0 248.6 2.8 50.7 -2 1 3 8800 12 22 00 --- 15 38 38 41.8 253.2 3.1 52.7 1318 F 1 13200 12 22 00 3C274 15 38 38 41.8 253.2 3.1 52.7 -2 1 3 13200 12 44 00 --- 16 00 41 37.4 257.4 3.5 54.2 1318 F 1 17600 12 44 00 3C274 16 00 41 37.4 257.4 3.5 54.2 -2 1 4 17600 13 00 00 --- 16 16 44 34.3 260.2 3.8 54.9 958 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 SOURCE LIST -- BB75: Vir A at 18cm // epoch 1 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 33.24499 * 12 29 06.69970 12 28 59.07947 1226+023 02 19 43.2835 * 02 03 08.5980 02 03 58.0229 3C273 /home/arana/cwalker/sched/catalogs/sources.vlba * 3C273B VLA Calibrator Source List J1229+02 J1230+1223 12 28 17.56844 * 12 30 49.42340 12 30 41.80957 1228+126 12 40 01.7274 * 12 23 28.0442 12 24 15.7324 * 3C274 /home/arana/cwalker/sched/catalogs/sources.vlba J1230+12 USNO - Ref Frame 1995-1, Eubanks Mar 1995 J1407+2827 14 04 45.61392 * 14 07 00.39442 14 06 53.28872 1404+286 28 41 29.2163 * 28 27 14.6900 28 27 53.1314 J1407+28 /home/arana/cwalker/sched/catalogs/sources.vlba * OQ208 USNO - Ref Frame 1995-1, Eubanks Mar 1995