COVER INFORMATION Station: VLBA_FD (Code Fd ) Experiment: Image 3C120 at 90cm - calibrator test Exp. Code: bw067j Schedule Version: 1.00 Processed by SCHED version: Release of 18 Sept. 2003 PI: Craig Walker Address: National Radio Astronomy Observatory P. O. Box O Socorro, New Mexico, 87801 U.S.A. Phone: 505 835 7247 EMAIL: cwalker@nrao.edu Fax: 505 835 7027 Phone during observation: 505 835 7247 Observing mode: 6cm 128-4-2 Notes: COVER LETTER: This project needs about 100 hours times 45 baselines to meet the sensitivity requirements. This time can be accumulated in many separated sessions. One session should be a full track with all antennas to set the calibration and ensure full uv coverage. I have submitted a schedule as bw067c for that session. The other sessions can involve as little as 2 hours and as few as 6 antennas. The observing frequency is 327 MHz. Tropospheric weather is not an issue - any conditions are ok. The ionosphere and the solar corona are potential problems. An outcome of the test observations (bw067a and bw067b) was that we should not observe near the sun. So please don't schedule this in the months of April through July. As per discussions with Dave Medcalf, I have set up this schedule to use a SCHED optimization mode that allows any subset of a full track to be designated by only changing the start time and the overall duration. So, with only modifications to those parameters, this schedule can be used repeatedly to build up the required baseline hours. See the "Initial Scan Information" section in the key file. The schedule uses 1.3 tape passes per hour. Here is the official dynamic scheduling sheet: ================================================================ Preferred Dynamic Contraints. Alter [defaults] as desired. ================================================================ Equipment constraints: Stations. Below each station code, the "o" indicates an [optional] station that is to be used if it is available. Change "o" to "r" if the station is required or change "o" to "n" if the station is not to be used. SC HN NL FD LA PT KP OV BR MK o o o o o o o o o r Minimum number of stations [6]: May we swap PT for a single VLA antenna? [yes] Consult http://www.aoc.nrao.edu/~gtaylor/y1gotcha.html to decide. If you adopt the default, then both PT and VLA1 must be in the stations list in the keyin file. Bands and polarizations. Below each band code, insert "R" if the righthand polarization is to be used, "L" if the lefthand polarization is to be used, "d" if dual polarizations are to be used, or "o" if the band is in your setups but scheduling should not be constrained by its availability. 90cm 50cm 20cm 13cm 6cm 4cm 2cm 1cm 7mm 3mm d Weather constraints: [appropriate for bands marked "L", "R", or "d" above and for at least the minimum number of stations] Date constraints: Preferred date(s), usually a series start [none]: Excluded dates plus reason [none]: April through July (too close to Sun). Preferred interval between segments in days [none]: Special conditions (e.g., a series with different spacings in time) [See the comments at the top.]: Schedule for VLBA_FD (Code Fd ) Page 2 Image 3C120 at 90cm - calibrator test 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. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Mon 8 Dec 2003 Day 342 --- Next scan frequencies: 324.49 324.49 332.49 332.49 Next BBC frequencies: 824.49 824.49 832.49 832.49 Next scan bandwidths: 8.00 8.00 8.00 8.00 01 06 55 3C147 23 16 42 19.0 42.7 -6.4 -64.7 0 1 1 0 01 06 35 01 09 55 --- 23 19 42 19.5 42.9 -6.4 -65.2 180 F 1 1330 01 11 54 3C120 23 21 42 13.1 91.5 -5.2 -59.8 81 1 1 1330 01 11 34 01 31 51 --- 23 41 42 17.4 94.1 -4.9 -59.5 1197 F 1 9442 01 32 05 J0423-0120 23 41 56 16.1 101.5 -4.7 -57.5 3 1 1 9442 01 31 51 01 35 05 =0420-014 23 44 56 16.7 101.9 -4.6 -57.4 180 F 1 10733 01 35 19 3C120 23 45 10 18.2 94.6 -4.8 -59.5 3 1 2 10733 01 35 05 01 55 16 --- 00 05 10 22.4 97.3 -4.5 -59.0 1197 R 1 16394 01 55 31 J0423-0120 00 05 26 21.0 104.8 -4.3 -56.3 4 1 2 16394 01 55 16 01 58 31 =0420-014 00 08 26 21.6 105.3 -4.3 -56.1 180 R 1 15096 01 58 46 3C120 00 08 41 23.2 97.8 -4.4 -58.9 4 1 2 15096 01 58 31 02 18 43 --- 00 28 41 27.4 100.7 -4.1 -58.1 1197 R 1 7016 02 19 43 3C147 00 29 42 30.1 46.9 -5.2 -77.0 19 1 2 7016 02 19 23 02 22 43 --- 00 32 42 30.6 47.0 -5.2 -77.5 180 R 1 5686 02 24 43 3C120 00 34 42 28.7 101.6 -4.0 -57.9 77 1 3 5686 02 24 23 02 44 39 --- 00 54 42 32.9 104.7 -3.6 -56.7 1197 F 1 2425 02 44 57 J0423-0120 00 55 00 31.1 112.9 -3.5 -52.5 6 1 3 2425 02 44 39 02 47 57 =0420-014 00 58 00 31.7 113.4 -3.4 -52.2 180 F 1 3740 02 48 14 3C120 00 58 17 33.6 105.3 -3.6 -56.5 6 1 3 3740 02 47 57 03 08 11 --- 01 18 17 37.7 108.7 -3.3 -54.9 1197 F 1 11836 03 08 29 J0423-0120 01 18 35 35.7 117.3 -3.1 -49.9 6 1 3 11836 03 08 11 03 11 28 =0420-014 01 21 35 36.3 117.9 -3.0 -49.5 180 F 1 13150 03 11 46 3C120 01 21 53 38.5 109.4 -3.2 -54.6 6 1 4 13150 03 11 28 03 31 42 --- 01 41 53 42.5 113.3 -2.9 -52.6 1197 R 1 13954 03 33 23 3C147 01 43 33 41.9 48.5 -4.0 -90.1 51 1 4 13954 03 33 03 03 36 22 --- 01 46 33 42.4 48.5 -3.9 -90.7 180 R 1 12624 Schedule for VLBA_FD (Code Fd ) Page 3 Image 3C120 at 90cm - calibrator test 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. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Mon 8 Dec 2003 Day 342 --- 03 38 22 3C120 01 48 33 43.8 114.7 -2.7 -51.8 70 1 4 12624 03 38 02 03 58 19 --- 02 08 33 47.6 119.2 -2.4 -49.0 1197 R 1 4513 03 58 39 J0423-0120 02 08 54 44.8 128.7 -2.2 -42.2 8 1 4 4513 03 58 19 04 01 38 =0420-014 02 11 54 45.3 129.5 -2.2 -41.6 180 R 1 3181 04 01 59 3C120 02 12 14 48.3 120.1 -2.4 -48.4 8 1 5 3181 04 01 38 04 21 55 --- 02 32 14 51.9 125.5 -2.0 -44.7 1197 F 1 4932 04 22 15 J0423-0120 02 32 34 48.6 135.4 -1.8 -37.2 7 1 5 4932 04 21 55 04 25 15 =0420-014 02 35 34 49.0 136.3 -1.8 -36.5 180 F 1 6262 04 25 35 3C120 02 35 54 52.6 126.5 -2.0 -44.0 7 1 5 6262 04 25 15 04 45 31 --- 02 55 54 55.9 132.9 -1.6 -39.3 1197 F 1 14372 04 47 19 3C147 02 57 42 53.7 46.0 -2.8 -106.3 44 1 5 14372 04 46 59 04 50 19 --- 03 00 42 54.2 45.8 -2.7 -107.0 180 F 1 15702 04 52 18 3C120 03 02 42 56.9 135.3 -1.5 -37.4 54 1 6 15702 04 51 58 05 12 15 --- 03 22 42 59.8 143.1 -1.2 -31.2 1197 R 1 11386 05 12 35 J0423-0120 03 23 02 54.9 153.0 -1.0 -23.0 5 1 6 11386 05 12 15 05 15 35 =0420-014 03 26 02 55.2 154.2 -1.0 -22.0 180 R 1 10054 05 15 55 3C120 03 26 23 60.2 144.7 -1.1 -30.0 4 1 6 10054 05 15 35 05 35 52 --- 03 46 23 62.4 154.0 -0.8 -22.2 1197 R 1 1941 05 36 12 J0423-0120 03 46 43 56.9 163.0 -0.6 -14.6 3 1 6 1941 05 35 52 05 39 12 =0420-014 03 49 43 57.0 164.4 -0.6 -13.4 180 R 1 609 05 39 32 3C120 03 50 03 62.8 155.9 -0.7 -20.7 3 1 7 609 05 39 12 05 59 29 --- 04 10 03 64.1 166.6 -0.4 -11.6 1197 F 1 7504 06 01 16 3C147 04 11 51 64.3 35.1 -1.5 -129.9 14 1 7 7504 06 00 56 06 04 16 --- 04 14 51 64.7 34.4 -1.5 -131.1 180 F 1 8834 06 06 15 3C120 04 16 51 64.4 170.4 -0.3 -8.3 23 1 7 8834 06 05 55 06 26 12 --- 04 36 51 64.7 182.0 0.1 1.7 1197 F 1 16945 06 26 33 J0423-0120 04 37 12 57.9 186.5 0.2 5.6 1 1 8 16945 06 26 12 06 29 32 =0420-014 04 40 12 57.8 187.9 0.3 6.8 180 R 1 16923 Schedule for VLBA_FD (Code Fd ) Page 4 Image 3C120 at 90cm - calibrator test 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. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Mon 8 Dec 2003 Day 342 --- 06 29 52 3C120 04 40 32 64.7 184.2 0.1 3.6 0 1 8 16923 06 29 32 06 49 49 --- 05 00 32 63.9 195.5 0.5 13.4 1197 R 1 8810 06 50 09 J0423-0120 05 00 52 56.8 197.3 0.6 14.8 0 1 8 8810 06 49 49 06 53 09 =0420-014 05 03 52 56.6 198.6 0.7 15.9 180 R 1 7477 06 53 29 3C120 05 04 12 63.7 197.5 0.5 15.1 0 1 9 7477 06 53 09 07 13 26 --- 05 24 12 62.0 207.8 0.8 23.8 1197 F 1 635 07 15 31 3C147 05 26 18 70.5 368.1 -0.3 -169.2 12 1 9 635 07 15 11 07 18 30 --- 05 29 18 70.6 366.6 -0.2 -171.1 180 F 1 1966 07 20 38 3C120 05 31 26 61.3 211.3 1.0 26.7 19 1 9 1966 07 20 18 07 40 35 --- 05 51 26 58.8 219.9 1.3 33.7 1197 F 1 10077 07 40 55 J0423-0120 05 51 47 51.7 217.4 1.5 31.5 0 1 9 10077 07 40 35 07 43 55 =0420-014 05 54 47 51.4 218.4 1.5 32.3 180 F 1 11409 07 44 15 3C120 05 55 07 58.3 221.3 1.4 34.8 0 1 10 11409 07 43 55 08 04 12 --- 06 15 07 55.2 228.5 1.7 40.4 1197 R 1 15678 08 04 32 J0423-0120 06 15 27 48.4 225.0 1.9 37.5 1 1 10 15678 08 04 12 08 07 31 =0420-014 06 18 27 47.9 225.9 1.9 38.1 180 R 1 14346 08 07 52 3C120 06 18 47 54.6 229.7 1.8 41.3 1 1 10 14346 08 07 31 08 27 48 --- 06 38 47 51.2 235.7 2.1 45.6 1197 R 1 6233 08 29 52 3C147 06 40 52 67.9 334.6 1.0 145.1 52 1 10 6233 08 29 32 08 32 52 --- 06 43 52 67.6 333.6 1.0 143.5 180 R 1 4903 08 35 07 3C120 06 46 08 49.9 237.7 2.2 46.9 66 1 11 4903 08 34 47 08 55 04 --- 07 06 08 46.1 242.6 2.5 50.1 1197 F 1 3209 08 55 24 J0423-0120 07 06 28 39.8 238.1 2.7 47.0 2 1 11 3209 08 55 04 08 58 24 =0420-014 07 09 28 39.2 238.8 2.8 47.4 180 F 1 4541 08 58 44 3C120 07 09 48 45.4 243.5 2.6 50.7 2 1 11 4541 08 58 24 09 18 41 --- 07 29 48 41.5 247.7 2.9 53.1 1197 F 1 12654 09 19 01 J0423-0120 07 30 09 35.3 243.1 3.1 50.1 2 1 11 12654 09 18 41 09 22 01 =0420-014 07 33 09 34.8 243.6 3.2 50.5 180 F 1 13986 Schedule for VLBA_FD (Code Fd ) Page 5 Image 3C120 at 90cm - calibrator test 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. Frequencies are LO sum (band edge). Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Mon 8 Dec 2003 Day 342 --- 09 22 21 3C120 07 33 29 40.8 248.4 3.0 53.5 2 1 12 13986 09 22 01 09 42 18 --- 07 53 29 36.7 252.2 3.3 55.4 1197 R 1 13101 09 44 05 3C147 07 55 17 58.7 317.4 2.2 115.3 58 1 12 13101 09 43 45 09 47 05 --- 07 58 17 58.2 317.0 2.3 114.4 180 R 1 11771 09 49 33 3C286 08 00 45 20.7 426.0 -5.5 -65.8 67 1 12 11771 09 49 13 09 52 32 --- 08 03 45 21.3 426.3 -5.5 -66.1 180 R 1 10441 09 54 48 3C120 08 06 01 34.1 254.3 3.5 56.3 15 1 12 10441 09 54 28 10 14 44 --- 08 26 01 30.0 257.5 3.9 57.5 1197 R 1 2330 10 15 05 J0423-0120 08 26 21 24.1 252.8 4.0 55.3 3 1 12 2330 10 14 44 10 18 04 =0420-014 08 29 21 23.5 253.3 4.1 55.5 180 R 1 997 10 18 24 3C120 08 29 42 29.2 258.1 3.9 57.7 3 1 13 997 10 18 04 10 38 21 --- 08 49 42 25.0 261.0 4.3 58.6 1197 F 1 7115 10 38 41 J0423-0120 08 50 02 19.2 256.4 4.4 56.8 2 1 13 7115 10 38 21 10 41 41 =0420-014 08 53 02 18.6 256.8 4.5 56.9 180 F 1 8445 10 42 00 3C120 08 53 21 24.2 261.5 4.3 58.7 3 1 13 8445 10 41 41 11 01 57 --- 09 13 21 19.9 264.3 4.7 59.3 1197 F 1 16554 11 03 26 3C147 09 14 51 46.3 311.8 3.5 95.6 30 1 14 16554 11 03 06 11 06 26 --- 09 17 51 45.9 311.7 3.6 95.0 180 R 1 17316 11 08 16 3C286 09 19 42 36.6 432.9 -4.2 -72.6 24 1 14 17316 11 07 56 11 11 16 --- 09 22 42 37.2 433.1 -4.1 -72.8 180 R 1 15986 11 13 28 3C120 09 24 54 17.5 265.9 4.9 59.5 14 1 14 15986 11 13 08 11 33 24 --- 09 44 54 13.2 268.5 5.2 59.8 1197 R 1 7874 11 58 23 3C147 10 09 56 37.5 311.7 4.5 85.0 1444 1 14 7874 11 58 03 12 01 22 --- 10 12 56 37.0 311.8 4.5 84.5 180 R 1 6544 12 03 47 3C286 10 15 22 48.2 437.1 -3.3 -76.8 56 1 14 6544 12 03 27 12 06 47 --- 10 18 22 48.8 437.4 -3.2 -77.0 180 R 1 5214 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: bw051.set Matches group v5090n in /home/filehost/cwalker/sched/catalogs/freq.dat Setup group: 1 Station: 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= -500.00 -500.00 -500.00 -500.00 Net SB= U U U U Pol. = RCP LCP RCP LCP BBC = 1 2 3 4 BBC SB= U U U U IF = B D B D VLBA FE= omit 90cm omit 90cm VLBA Synth= 15.4 15.4 15.4 The following frequency sets based on this setup were used. Frequency Set: 1 Setup file default. Used pcal sets: 1 LO sum= 324.49 324.49 332.49 332.49 BBC fr= 824.49 824.49 832.49 832.49 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 -- Image 3C120 at 90cm - calibrator test Catalog positions marked with *. Precession of date coordinates is based on stop time of first scan. Names used in schedule marked with *. Short names used in VLA and SNAP files marked with +. Observation date used in B1950/J2000 coordinate conversion (PRECDATE): 1979.900 No adjustments are made for rates (DRA, DDEC). Source Source position (RA/Dec) (B1950) (J2000) (Date) * J0423-0120 04 20 43.539850 * 04 23 15.800727 04 23 28.312279 0420-014 -01 27 28.70002 *-01 20 33.06531 -01 19 56.10126 J0423-01 /home/filehost/cwalker/sched/catalogs/sources.vlba ICRF - Ext.1 Source - 1998 IERS Annual Report J0433+0521 04 30 31.602066 * 04 33 11.095535 04 33 24.137657 0430+052 05 14 59.61664 * 05 21 15.61942 05 21 50.12577 * 3C120 /home/filehost/cwalker/sched/catalogs/sources.vlba J0433+05 ICRF - Ext.1 Source - 1998 IERS Annual Report J0542+4951 05 38 43.517539 * 05 42 36.137917 05 42 55.264056 0538+498 49 49 42.83693 * 49 51 07.23356 49 51 17.13387 * 3C147 /home/filehost/cwalker/sched/catalogs/sources.vlba J0542+49 ICRF - Ext.1 Source - 1998 IERS Annual Report J1331+3030 13 28 49.657691 * 13 31 08.287984 13 31 17.691925 1328+307 30 45 58.64021 * 30 30 32.95885 30 29 16.38868 * 3C286 /home/filehost/cwalker/sched/catalogs/sources.vlba J1331+30 VLBA Calib. Survey - ICRF Frame - reduced by GSFC group - Aug 2001 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) J0423-0120 154.5 3C120 161.7 3C147 151.4 3C286 72.7 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