COVER INFORMATION Station: VLBA_BR (Code Br ) 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_BR (Code Br ) 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 07 31 42 19.4 92.9 -5.0 -43.0 0 1 1 0 05 32 00 --- 07 53 46 23.0 97.1 -4.6 -42.7 1320 F 1 4400 05 32 00 3C274 07 53 46 23.0 97.1 -4.6 -42.7 -2 1 1 4400 05 54 00 --- 08 15 49 26.7 101.5 -4.2 -42.0 1318 F 1 8800 05 56 00 3C274 08 17 49 27.0 101.9 -4.2 -42.0 117 1 1 8800 06 18 00 --- 08 39 53 30.5 106.5 -3.8 -40.9 1320 F 1 13200 06 18 00 3C274 08 39 53 30.5 106.5 -3.8 -40.9 -2 1 1 13200 06 40 00 --- 09 01 57 34.0 111.4 -3.5 -39.5 1318 F 1 17600 06 42 00 3C274 09 03 57 34.3 111.9 -3.4 -39.4 117 1 2 17600 07 04 00 --- 09 26 01 37.7 117.1 -3.1 -37.5 1320 R 1 13200 07 04 00 3C274 09 26 01 37.7 117.1 -3.1 -37.5 -2 1 2 13200 07 26 00 --- 09 48 04 40.9 122.7 -2.7 -35.1 1318 R 1 8800 07 28 00 3C274 09 50 05 41.2 123.2 -2.7 -34.9 117 1 2 8800 07 50 00 --- 10 12 08 44.1 129.3 -2.3 -31.9 1320 R 1 4400 07 50 00 3C274 10 12 08 44.1 129.3 -2.3 -31.9 -2 1 2 4400 08 12 00 --- 10 34 12 46.8 136.0 -1.9 -28.3 1318 R 1 0 08 14 00 3C274 10 36 12 47.1 136.6 -1.9 -28.0 118 1 1 0 08 36 00 --- 10 58 16 49.4 143.9 -1.5 -23.7 1320 F 2 4400 08 36 00 3C274 10 58 16 49.4 143.9 -1.5 -23.7 -2 1 1 4400 08 58 00 --- 11 20 19 51.4 151.8 -1.2 -18.9 1318 F 2 8800 08 58 00 3C273B 11 20 19 41.6 156.8 -1.1 -15.3 -22 1 1 8800 09 03 00 --- 11 25 20 41.9 158.4 -1.1 -14.2 278 F 2 9800 09 03 00 3C274 11 25 20 51.8 153.6 -1.1 -17.7 -22 1 1 9800 09 20 00 --- 11 42 23 52.9 160.2 -0.8 -13.4 998 F 2 13200 09 20 00 3C274 11 42 23 52.9 160.2 -0.8 -13.4 -2 1 1 13200 09 42 00 --- 12 04 27 53.9 169.1 -0.4 -7.4 1318 F 2 17600 Schedule for VLBA_BR (Code Br ) 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 04 27 59.3 118.7 -2.0 -41.7 -36 1 2 17600 09 47 00 --- 12 09 27 60.0 120.4 -2.0 -40.9 264 R 2 16600 09 49 00 3C274 12 11 28 54.0 172.0 -0.3 -5.5 84 1 2 16600 10 06 00 --- 12 28 31 54.3 179.1 0.0 -0.6 1020 R 2 13200 10 08 00 3C274 12 30 31 54.3 179.9 0.0 -0.1 117 1 2 13200 10 30 00 --- 12 52 34 54.0 189.1 0.4 6.2 1320 R 2 8800 10 30 00 3C274 12 52 34 54.0 189.1 0.4 6.2 -2 1 2 8800 10 52 00 --- 13 14 38 53.1 198.1 0.7 12.2 1318 R 2 4400 10 54 00 3C274 13 16 38 53.0 198.9 0.8 12.8 117 1 2 4400 11 16 00 --- 13 38 42 51.6 207.3 1.1 18.3 1320 R 2 0 11 16 00 3C274 13 38 42 51.6 207.3 1.1 18.3 -2 1 3 0 11 38 00 --- 14 00 46 49.7 215.3 1.5 23.3 1318 F 1 4400 11 38 00 OQ208 14 00 46 70.3 176.0 -0.1 -3.0 -43 1 3 4400 11 43 00 --- 14 05 46 70.3 179.3 0.0 -0.6 257 F 1 5400 11 43 00 3C274 14 05 46 49.2 217.0 1.6 24.3 -44 1 3 5400 12 00 00 --- 14 22 49 47.3 222.6 1.9 27.6 976 F 1 8800 12 00 00 3C274 14 22 49 47.3 222.6 1.9 27.6 -2 1 3 8800 12 22 00 --- 14 44 53 44.7 229.4 2.2 31.3 1318 F 1 13200 12 22 00 3C274 14 44 53 44.7 229.4 2.2 31.3 -2 1 3 13200 12 44 00 --- 15 06 57 41.8 235.6 2.6 34.3 1318 F 1 17600 12 44 00 3C274 15 06 57 41.8 235.6 2.6 34.3 -2 1 4 17600 13 00 00 --- 15 22 59 39.5 239.8 2.9 36.2 958 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 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