COVER INFORMATION Station: EB_VLBA (Code Eb ) Experiment: HI absorption in 3C84 Exp. Code: EP035 Schedule Version: 2.00 Processed by SCHED version: Release of 28 April 2000 PI: Y. Pihlstroem Address: Onsala Space Observatory SE-439 92 Onsala Sweden Phone: 46-31-772-5528 (work) EMAIL: ylva@oso.chalmers.se Fax: 46-31-772-5590 Phone during observation: 46-31-772-5528 (work) Observing mode: 128Mbps Notes: **** Please make sure that PHASE CAL is OFF **** Schedule for EB_VLBA (Code Eb ) Page 2 HI absorption in 3C84 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. TPStart: Tape motion start time. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Tue 21 Nov 2000 Day 326 --- Next scan frequencies: 1391.00 1391.00 1399.00 1399.00 Next BBC frequencies: 541.00 541.00 549.00 549.00 Next scan bandwidths: 8.00 8.00 8.00 8.00 15 00 00 3C454.3 19 31 13 37.0 111.5 -3.4 -38.0 0 1 1 0 15 00 00 15 22 00 --- 19 53 16 40.2 116.9 -3.0 -36.2 1320 F 1 8800 15 23 00 3C454.3 19 54 16 40.3 117.2 -3.0 -36.1 44 1 1 8800 15 23 00 15 45 00 --- 20 16 20 43.4 123.0 -2.6 -33.7 1320 F 1 17600 15 46 00 3C454.3 20 17 20 43.5 123.3 -2.6 -33.6 44 1 2 17600 15 46 00 16 08 00 --- 20 39 24 46.3 129.6 -2.2 -30.7 1320 R 1 8800 16 15 50 3C84 20 47 15 26.4 55.8 -6.5 -44.6 233 1 2 8800 16 15 50 16 37 50 --- 21 09 18 29.3 59.1 -6.2 -46.8 1320 R 1 0 16 46 28 3C454.3 21 17 58 50.6 142.0 -1.6 -24.0 255 1 3 0 16 46 28 17 08 28 --- 21 40 02 52.5 149.9 -1.2 -19.4 1320 F 1 8800 17 09 28 3C454.3 21 41 02 52.6 150.3 -1.2 -19.1 44 1 3 8800 17 09 28 17 31 28 --- 22 03 06 54.1 158.8 -0.8 -13.8 1320 F 1 17600 17 39 45 3C454.3 22 11 24 54.6 162.2 -0.7 -11.7 472 1 4 17600 17 39 45 18 01 45 --- 22 33 27 55.4 171.3 -0.3 -5.7 1320 R 1 8800 18 11 35 3C84 22 43 19 42.9 72.9 -4.6 -54.2 280 1 4 8800 18 11 35 18 33 35 --- 23 05 23 46.3 76.2 -4.2 -55.5 1320 R 1 0 18 44 52 3C454.3 23 16 42 55.3 189.6 0.4 6.3 322 1 5 0 18 44 52 19 06 52 --- 23 38 45 54.5 198.7 0.7 12.3 1320 F 1 8800 19 07 52 3C454.3 23 39 46 54.4 199.1 0.8 12.5 44 1 5 8800 19 07 52 19 29 52 --- 00 01 49 53.0 207.8 1.1 18.0 1320 F 1 17600 19 30 52 3C454.3 00 02 49 52.9 208.1 1.1 18.2 44 1 6 17600 19 30 52 19 52 52 --- 00 24 53 51.1 216.2 1.5 23.0 1320 R 1 8800 20 05 21 3C84 00 37 24 60.8 92.0 -2.7 -58.0 361 1 6 8800 20 05 21 20 27 21 --- 00 59 28 64.3 96.8 -2.3 -57.5 1320 R 1 0 20 41 13 3C454.3 01 13 22 45.7 231.8 2.3 31.3 412 1 7 0 20 41 13 21 03 13 --- 01 35 26 42.8 238.0 2.7 34.2 1320 F 1 8800 Schedule for EB_VLBA (Code Eb ) Page 3 HI absorption in 3C84 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. TPStart: Tape motion start time. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Tue 21 Nov 2000 Day 326 --- 21 04 13 3C454.3 01 36 26 42.7 238.3 2.7 34.3 44 1 7 8800 21 04 13 21 26 13 --- 01 58 29 39.6 244.0 3.1 36.5 1320 F 1 17600 21 27 13 3C454.3 01 59 30 39.5 244.3 3.1 36.6 44 1 8 17600 21 27 13 21 49 13 --- 02 21 33 36.3 249.6 3.5 38.3 1320 R 1 8800 22 02 09 3C84 02 34 31 78.1 134.6 -0.8 -37.2 416 1 8 8800 22 02 09 22 24 09 --- 02 56 35 80.1 153.7 -0.4 -22.1 1320 R 1 0 22 37 12 3C454.3 03 09 40 28.9 260.2 4.3 40.7 448 1 9 0 22 37 12 22 59 12 --- 03 31 43 25.4 264.7 4.6 41.2 1320 F 1 8800 23 00 12 3C454.3 03 32 44 25.3 264.9 4.6 41.2 44 1 9 8800 23 00 12 23 22 12 --- 03 54 47 21.8 269.2 5.0 41.4 1320 F 1 17600 23 23 12 3C454.3 03 55 47 21.6 269.4 5.0 41.4 44 1 10 17600 23 23 12 23 45 12 --- 04 17 51 18.1 273.6 5.4 41.3 1320 R 1 8800 --- Start: Tue 21 Nov 2000 Day 326 -- Stop: Wed 22 Nov 2000 Day 327 --- 23 55 54 3C84 04 28 35 75.1 239.4 1.1 46.9 399 1 10 8800 23 55 54 00 17 54 --- 04 50 39 72.0 248.8 1.5 52.3 1320 R 1 0 00 18 54 3C84 04 51 39 71.8 249.2 1.5 52.5 44 1 11 0 00 18 54 00 40 54 --- 05 13 42 68.5 256.3 1.9 55.6 1320 F 1 8800 00 41 54 3C84 05 14 42 68.3 256.6 1.9 55.7 44 1 11 8800 00 41 54 01 03 54 --- 05 36 46 64.9 262.4 2.3 57.3 1320 F 1 17600 01 04 54 3C84 05 37 46 64.7 262.6 2.3 57.3 44 1 12 17600 01 04 54 01 26 54 --- 05 59 50 61.2 267.4 2.7 58.0 1320 R 1 8800 01 27 54 3C84 06 00 50 61.0 267.7 2.7 58.0 44 1 12 8800 01 27 54 01 49 54 --- 06 22 54 57.5 271.9 3.1 58.1 1320 R 1 0 02 12 31 3C286 06 45 34 16.5 421.7 -6.8 -40.5 892 1 13 0 02 12 31 02 20 31 --- 06 53 36 17.6 423.1 -6.6 -41.2 480 F 1 3200 02 37 23 DA193 07 10 30 73.1 237.9 1.2 44.5 441 1 13 3200 02 37 23 02 49 23 --- 07 22 32 71.4 243.2 1.4 47.6 720 F 1 8000 02 55 37 3C84 07 28 48 47.2 282.9 4.1 55.8 241 1 13 8000 02 55 37 03 07 37 --- 07 40 50 45.3 284.8 4.3 55.2 720 F 1 12800 Schedule for EB_VLBA (Code Eb ) Page 4 HI absorption in 3C84 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. TPStart: Tape motion start time. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Wed 22 Nov 2000 Day 327 --- 03 08 37 3C84 07 41 50 45.2 284.9 4.4 55.1 44 1 14 12800 03 08 37 03 30 37 --- 08 03 53 41.8 288.2 4.7 53.7 1320 R 1 4000 ----------- Tape Change ------------ 03 50 07 3C273 08 23 26 19.4 111.5 -4.1 -36.3 624 1 1 0 03 50 07 04 12 07 --- 08 45 30 22.6 116.3 -3.7 -34.8 1320 F 1 8800 04 34 07 3C273 09 07 33 25.6 121.3 -3.4 -32.9 1290 1 1 8800 04 34 07 04 56 07 --- 09 29 37 28.5 126.6 -3.0 -30.7 1320 F 1 17600 05 15 54 3C84 09 49 27 26.8 303.7 6.5 44.9 641 1 2 17600 05 15 54 05 37 54 --- 10 11 31 23.9 307.0 6.9 42.7 1320 R 1 8800 05 56 25 3C273 10 30 05 35.4 142.5 -2.0 -22.8 603 1 2 8800 05 56 25 06 18 25 --- 10 52 09 37.4 148.9 -1.6 -19.2 1320 R 1 0 06 19 25 3C273 10 53 09 37.4 149.2 -1.6 -19.0 44 1 3 0 06 19 25 06 41 25 --- 11 15 12 39.1 155.9 -1.2 -15.0 1320 F 1 8800 06 42 25 3C273 11 16 12 39.1 156.2 -1.2 -14.9 44 1 3 8800 06 42 25 07 04 25 --- 11 38 16 40.3 163.2 -0.8 -10.6 1320 F 1 17600 07 05 25 3C273 11 39 16 40.4 163.5 -0.8 -10.4 44 1 4 17600 07 05 25 07 27 25 --- 12 01 20 41.2 170.8 -0.5 -5.9 1320 R 1 8800 07 28 25 3C273 12 02 20 41.2 171.1 -0.4 -5.7 44 1 4 8800 07 28 25 07 50 25 --- 12 24 24 41.5 178.4 -0.1 -1.0 1320 R 1 0 07 51 25 3C273 12 25 24 41.5 178.8 -0.1 -0.8 44 1 5 0 07 51 25 08 13 25 --- 12 47 27 41.4 186.1 0.3 3.9 1320 F 1 8800 08 14 25 3C273 12 48 28 41.4 186.4 0.3 4.1 44 1 5 8800 08 14 25 08 36 25 --- 13 10 31 40.7 193.7 0.7 8.7 1320 F 1 17600 08 37 25 3C273 13 11 31 40.7 194.0 0.7 8.9 44 1 6 17600 08 37 25 08 59 25 --- 13 33 35 39.6 201.1 1.1 13.2 1320 R 1 8800 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: /home/ylva/proj/ep035/schedule/ep035.set Matches group eb_1420 in /usr/local/sched/catalogs/freq.dat Prime focus receiver, Filter in 31/07/98 by rwp Setup group: 6 Station: EB_VLBA Total bit rate: 128 Format: VLBA1:4 Bits per sample: 2 Sample rate: 16.000 Number of channels: 4 Passes/head pos: 1 Speedup factor: 2.00 Tape speeds: Low density - 133.330 ips, High density - 80.00 ips Time per pass for 17600 ft, High density tapes is: 00:44:00 1st LO= 850.00 850.00 850.00 850.00 Net SB= U U U U Pol. = LCP RCP LCP RCP BBC = 1 2 3 4 BBC SB= U U U U IF = D B D B The following frequency sets based on this setup were used. Frequency Set: 1 Setup file default. Used pcal sets: 1 LO sum= 1391.00 1391.00 1399.00 1399.00 BBC fr= 541.00 541.00 549.00 549.00 Bandwd= 8.000 8.000 8.000 8.000 The following pulse cal sets were used with this setup: Pulse cal detection set: 1 PCAL = OFF PCALXB1= S1 S2 S3 S4 OFF OFF OFF OFF PCALXB2= M1 M2 M3 M4 OFF OFF OFF OFF PCALFR1= 0 0 0 0 0 0 0 0 PCALFR2= 0 0 0 0 0 0 0 0 Track assignments are: track1= 2, 18, 3, 19 barrel=roll_auto SOURCE LIST -- HI absorption in 3C84 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) * 3C84 * 03 16 29.555000 03 19 48.147867 03 19 52.168860 * 41 19 52.08000 41 30 42.26781 41 30 52.91769 From catalog imbedded in main SCHED input file. J0555+3948 05 52 01.407168 * 05 55 30.805611 05 55 34.640664 0552+398 39 48 21.94582 * 39 48 49.16497 39 48 43.76427 * DA193 /usr/local/sched/catalogs/sources.vlba J0555+39 USNO - Ref Frame 1998-6, Eubanks June 1998 J1229+0203 12 26 33.245904 * 12 29 06.699800 12 29 07.565814 1226+023 02 19 43.30350 * 02 03 08.59600 02 03 01.75725 * 3C273 /usr/local/sched/catalogs/sources.vlba 3C273B JVAS - Browne et al. 1998, mnras, 293, 257; S8.4GHz= 41319 mJy J1229+02 J1331+3030 13 28 49.657781 * 13 31 08.288074 13 31 08.457743 1328+307 30 45 58.64118 * 30 30 32.95982 30 30 21.10340 * 3C286 /usr/local/sched/catalogs/sources.vlba J1331+30 USNO - Ref Frame 1998-6, Eubanks June 1998 J2253+1608 22 51 29.520100 * 22 53 57.748300 22 53 59.670491 2251+158 15 52 54.35016 * 16 08 53.56300 16 09 14.22791 * 3C454.3 /usr/local/sched/catalogs/sources.vlba J2253+16 JVAS - Browne et al. 1998, mnras, 293, 257; S8.4GHz= 10503 mJy The solar corona can cause unstable phases for sources too close to the Sun. SCHED provides warnings at individual scans for distances less than 10 degrees. The distance from the Sun to each source in this schedule is: Source Sun distance (deg) 3C84 157.6 DA193 147.0 3C273 54.3 3C286 60.8 3C454.3 109.8 Barry Clark estimates from predictions by Ketan Desai of IPM scattering sizes that the Sun will cause amplitude reductions on the longest VLBA baselines at a solar distance of 60deg F^(-0.6) where F is in GHz. For common VLBI bands, this is: 327 MHz 117. deg 610 MHz 81. deg 1.6 GHz 45. deg 2.3 GHz 36. deg 5.0 GHz 23. deg 8.4 GHz 17. deg 15.0 GHz 12. deg 22.0 GHz 9. deg 43.0 GHz 6. deg