COVER INFORMATION Station: VLBA_PT (Code Pt ) 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_PT (Code Pt ) 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 17 57 29.0 94.6 -4.2 -57.5 0 1 1 0 05 32 00 --- 08 40 01 33.5 98.1 -3.8 -56.9 1320 F 1 4400 05 32 00 3C274 08 40 01 33.5 98.1 -3.8 -56.9 -2 1 1 4400 05 54 00 --- 09 02 04 38.0 101.7 -3.5 -55.9 1318 F 1 8800 05 56 00 3C274 09 04 05 38.4 102.1 -3.4 -55.8 117 1 1 8800 06 18 00 --- 09 26 08 42.9 106.1 -3.1 -54.3 1320 F 1 13200 06 18 00 3C274 09 26 08 42.9 106.1 -3.1 -54.3 -2 1 1 13200 06 40 00 --- 09 48 12 47.2 110.7 -2.7 -52.3 1318 F 1 17600 06 42 00 3C274 09 50 12 47.6 111.1 -2.7 -52.1 117 1 2 17600 07 04 00 --- 10 12 16 51.7 116.4 -2.3 -49.2 1320 R 1 13200 07 04 00 3C274 10 12 16 51.7 116.4 -2.3 -49.2 -2 1 2 13200 07 26 00 --- 10 34 19 55.7 122.6 -1.9 -45.5 1318 R 1 8800 07 28 00 3C274 10 36 20 56.0 123.2 -1.9 -45.1 117 1 2 8800 07 50 00 --- 10 58 23 59.7 130.7 -1.5 -39.9 1320 R 1 4400 07 50 00 3C274 10 58 23 59.7 130.7 -1.5 -39.9 -2 1 2 4400 08 12 00 --- 11 20 27 62.9 139.7 -1.2 -33.2 1318 R 1 0 08 14 00 3C274 11 22 27 63.2 140.6 -1.1 -32.5 117 1 1 0 08 36 00 --- 11 44 31 65.7 151.6 -0.8 -23.7 1320 F 2 4400 08 36 00 3C274 11 44 31 65.7 151.6 -0.8 -23.7 -2 1 1 4400 08 58 00 --- 12 06 35 67.4 164.5 -0.4 -13.1 1318 F 2 8800 08 58 00 3C273B 12 06 35 57.3 169.6 -0.4 -8.6 -22 1 1 8800 09 03 00 --- 12 11 35 57.5 171.9 -0.3 -6.7 278 F 2 9800 09 03 00 3C274 12 11 35 67.7 167.6 -0.3 -10.4 -22 1 1 9800 09 20 00 --- 12 28 38 68.1 178.7 0.0 -1.1 998 F 2 13200 09 20 00 3C274 12 28 38 68.1 178.7 0.0 -1.1 -2 1 1 13200 09 42 00 --- 12 50 42 67.6 192.9 0.3 10.9 1318 F 2 17600 Schedule for VLBA_PT (Code Pt ) 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 50 42 72.8 104.6 -1.3 -65.4 -61 1 2 17600 09 47 00 --- 12 55 43 73.8 106.2 -1.2 -64.5 239 R 2 16600 09 49 00 3C274 12 57 43 67.3 197.3 0.5 14.6 57 1 2 16600 10 06 00 --- 13 14 46 65.9 207.2 0.7 22.8 1020 R 2 13200 10 08 00 3C274 13 16 46 65.7 208.3 0.8 23.7 117 1 2 13200 10 30 00 --- 13 38 50 63.2 219.4 1.1 32.4 1320 R 2 8800 10 30 00 3C274 13 38 50 63.2 219.4 1.1 32.4 -2 1 2 8800 10 52 00 --- 14 00 53 60.0 228.5 1.5 39.3 1318 R 2 4400 10 54 00 3C274 14 02 54 59.7 229.3 1.5 39.9 117 1 2 4400 11 16 00 --- 14 24 57 56.1 236.8 1.9 45.0 1320 R 2 0 11 16 00 3C274 14 24 57 56.1 236.8 1.9 45.0 -2 1 3 0 11 38 00 --- 14 47 01 52.1 243.0 2.3 48.9 1318 F 1 4400 11 38 00 OQ208 14 47 01 79.6 238.4 0.7 53.2 -57 1 3 4400 11 43 00 --- 14 52 02 78.7 241.8 0.8 55.9 243 F 1 5400 11 43 00 3C274 14 52 02 51.2 244.3 2.4 49.7 -57 1 3 5400 12 00 00 --- 15 09 04 48.0 248.4 2.6 51.8 963 F 1 8800 12 00 00 3C274 15 09 04 48.0 248.4 2.6 51.8 -2 1 3 8800 12 22 00 --- 15 31 08 43.7 253.0 3.0 54.0 1318 F 1 13200 12 22 00 3C274 15 31 08 43.7 253.0 3.0 54.0 -2 1 3 13200 12 44 00 --- 15 53 12 39.3 257.2 3.4 55.6 1318 F 1 17600 12 44 00 3C274 15 53 12 39.3 257.2 3.4 55.6 -2 1 4 17600 13 00 00 --- 16 09 14 36.0 260.0 3.6 56.4 958 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