COVER INFORMATION Station: VLBA_MK (Code Mk ) 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_MK (Code Mk ) 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 12 12 00 3C274 06 31 44 4.4 78.4 -6.0 -70.7 0 1 1 0 12 34 00 --- 06 53 48 9.5 80.1 -5.6 -71.6 1320 F 1 4400 12 34 00 3C274 06 53 48 9.5 80.1 -5.6 -71.6 -2 1 1 4400 12 56 00 --- 07 15 51 14.6 81.8 -5.2 -72.5 1318 F 1 8800 12 58 00 3C274 07 17 52 15.1 82.0 -5.2 -72.5 117 1 1 8800 13 20 00 --- 07 39 55 20.2 83.7 -4.8 -73.2 1320 F 1 13200 13 20 00 3C274 07 39 55 20.2 83.7 -4.8 -73.2 -2 1 1 13200 13 42 00 --- 08 01 59 25.4 85.3 -4.5 -73.8 1318 F 1 17600 13 44 00 3C274 08 03 59 25.9 85.5 -4.4 -73.8 117 1 2 17600 14 06 00 --- 08 26 03 31.1 87.2 -4.1 -74.2 1320 R 1 13200 14 06 00 3C274 08 26 03 31.1 87.2 -4.1 -74.2 -2 1 2 13200 14 28 00 --- 08 48 06 36.2 88.9 -3.7 -74.4 1318 R 1 8800 14 28 00 3C273B 08 48 06 33.3 101.0 -3.7 -67.6 -10 1 2 8800 14 33 00 --- 08 53 07 34.4 101.6 -3.6 -67.3 290 R 1 7800 14 33 00 3C274 08 53 07 37.4 89.3 -3.6 -74.4 -10 1 2 7800 14 50 00 --- 09 10 10 41.4 90.8 -3.3 -74.4 1010 R 1 4400 14 50 00 3C274 09 10 10 41.4 90.8 -3.3 -74.4 -2 1 2 4400 15 12 00 --- 09 32 14 46.6 92.8 -3.0 -74.2 1318 R 1 0 15 12 00 OQ208 09 32 14 27.5 67.4 -4.6 -81.3 -40 1 1 0 15 17 00 --- 09 37 14 28.6 67.6 -4.5 -81.8 260 F 2 1000 15 19 00 3C274 09 39 15 48.3 93.5 -2.9 -74.1 79 1 1 1000 15 36 00 --- 09 56 17 52.3 95.3 -2.6 -73.6 1020 F 2 4400 15 38 00 3C274 09 58 18 52.7 95.5 -2.5 -73.5 117 1 1 4400 16 00 00 --- 10 20 21 57.9 98.3 -2.2 -72.4 1320 F 2 8800 16 00 00 3C274 10 20 21 57.9 98.3 -2.2 -72.4 -2 1 1 8800 16 22 00 --- 10 42 25 63.0 101.8 -1.8 -70.6 1318 F 2 13200 Schedule for VLBA_MK (Code Mk ) 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 --- 16 24 00 3C274 10 44 25 63.5 102.1 -1.8 -70.4 117 1 1 13200 16 46 00 --- 11 06 29 68.5 106.9 -1.4 -67.2 1320 F 2 17600 16 46 00 3C274 11 06 29 68.5 106.9 -1.4 -67.2 -2 1 2 17600 17 08 00 --- 11 28 33 73.4 114.0 -1.0 -61.6 1318 R 2 13200 17 08 00 OQ208 11 28 33 53.0 68.7 -2.6 -94.6 -43 1 2 13200 17 13 00 --- 11 33 33 54.1 68.5 -2.6 -95.3 257 R 2 12200 17 13 00 3C274 11 33 33 74.4 116.2 -1.0 -59.8 -43 1 2 12200 17 30 00 --- 11 50 36 77.9 126.1 -0.7 -51.2 977 R 2 8800 17 30 00 3C274 11 50 36 77.9 126.1 -0.7 -51.2 -2 1 2 8800 17 52 00 --- 12 12 40 81.4 149.0 -0.3 -29.7 1318 R 2 4400 17 52 00 3C274 12 12 40 81.4 149.0 -0.3 -29.7 -2 1 2 4400 18 14 00 --- 12 34 43 82.5 187.6 0.1 7.3 1318 R 2 0 18 14 00 3C274 12 34 43 82.5 187.6 0.1 7.3 -2 1 3 0 18 30 00 --- 12 50 46 81.2 213.8 0.3 32.4 958 F 1 3200 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