COVER INFORMATION Station: VLBA_HN (Code Hn ) 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_HN (Code Hn ) 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 10 42 29 51.5 134.4 -1.8 -32.4 0 1 1 0 05 32 00 --- 11 04 32 54.2 142.2 -1.4 -27.4 1320 F 1 4400 05 32 00 3C274 11 04 32 54.2 142.2 -1.4 -27.4 -2 1 1 4400 05 54 00 --- 11 26 36 56.5 150.8 -1.1 -21.5 1318 F 1 8800 05 56 00 3C274 11 28 36 56.6 151.6 -1.0 -20.9 117 1 1 8800 06 18 00 --- 11 50 40 58.3 161.2 -0.7 -14.0 1320 F 1 13200 06 18 00 3C274 11 50 40 58.3 161.2 -0.7 -14.0 -2 1 1 13200 06 40 00 --- 12 12 44 59.2 171.4 -0.3 -6.4 1318 F 1 17600 06 42 00 3C274 12 14 44 59.3 172.4 -0.3 -5.7 117 1 2 17600 07 04 00 --- 12 36 48 59.4 182.9 0.1 2.2 1320 R 1 13200 07 04 00 3C274 12 36 48 59.4 182.9 0.1 2.2 -2 1 2 13200 07 26 00 --- 12 58 51 58.9 193.4 0.5 10.0 1318 R 1 8800 07 28 00 3C274 13 00 52 58.8 194.3 0.5 10.7 117 1 2 8800 07 50 00 --- 13 22 55 57.4 204.2 0.9 17.9 1320 R 1 4400 07 50 00 3C274 13 22 55 57.4 204.2 0.9 17.9 -2 1 2 4400 08 12 00 --- 13 44 59 55.5 213.3 1.2 24.3 1318 R 1 0 08 14 00 3C274 13 46 59 55.3 214.1 1.3 24.8 117 1 1 0 08 36 00 --- 14 09 03 52.8 222.2 1.6 30.3 1320 F 2 4400 08 36 00 3C274 14 09 03 52.8 222.2 1.6 30.3 -2 1 1 4400 08 58 00 --- 14 31 06 49.9 229.5 2.0 34.8 1318 F 2 8800 08 58 00 3C273B 14 31 06 40.9 222.2 2.0 29.5 -20 1 1 8800 09 03 00 --- 14 36 07 40.3 223.6 2.1 30.4 280 F 2 9800 09 03 00 3C274 14 36 07 49.2 231.0 2.1 35.7 -20 1 1 9800 09 20 00 --- 14 53 10 46.7 236.0 2.4 38.4 1000 F 2 13200 09 20 00 3C274 14 53 10 46.7 236.0 2.4 38.4 -2 1 1 13200 09 42 00 --- 15 15 14 43.2 241.8 2.7 41.4 1318 F 2 17600 Schedule for VLBA_HN (Code Hn ) 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 15 15 14 70.0 229.1 1.1 39.0 -56 1 2 17600 09 47 00 --- 15 20 14 69.3 231.6 1.2 40.7 244 R 2 16600 09 49 00 3C274 15 22 15 42.1 243.6 2.9 42.2 64 1 2 16600 10 06 00 --- 15 39 17 39.2 247.6 3.1 43.9 1020 R 2 13200 10 08 00 3C274 15 41 18 38.9 248.1 3.2 44.1 117 1 2 13200 10 30 00 --- 16 03 21 35.1 252.8 3.5 45.7 1320 R 2 8800 10 30 00 3C274 16 03 21 35.1 252.8 3.5 45.7 -2 1 2 8800 10 52 00 --- 16 25 25 31.2 257.3 3.9 47.0 1318 R 2 4400 10 54 00 3C274 16 27 25 30.8 257.7 3.9 47.1 117 1 2 4400 11 16 00 --- 16 49 29 26.9 261.8 4.3 47.9 1320 R 2 0 11 16 00 3C274 16 49 29 26.9 261.8 4.3 47.9 -2 1 3 0 11 38 00 --- 17 11 33 22.9 265.8 4.7 48.4 1318 F 1 4400 11 38 00 OQ208 17 11 33 50.4 264.1 3.1 55.9 -57 1 3 4400 11 43 00 --- 17 16 33 49.5 265.0 3.2 56.1 243 F 1 5400 11 43 00 3C274 17 16 33 21.9 266.7 4.8 48.4 -57 1 3 5400 12 00 00 --- 17 33 36 18.8 269.6 5.0 48.6 963 F 1 8800 12 00 00 3C274 17 33 36 18.8 269.6 5.0 48.6 -2 1 3 8800 12 22 00 --- 17 55 40 14.8 273.3 5.4 48.5 1318 F 1 13200 12 22 00 3C274 17 55 40 14.8 273.3 5.4 48.5 -2 1 3 13200 12 44 00 --- 18 17 43 10.8 277.0 5.8 48.1 1318 F 1 17600 12 44 00 3C274 18 17 43 10.8 277.0 5.8 48.1 -2 1 4 17600 13 00 00 --- 18 33 46 7.9 279.7 6.1 47.6 958 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