COVER INFORMATION Station: VLBA_PT (Code Pt ) Experiment: Image 3C120 at 90cm - calibrator test Exp. Code: bw067o 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_PT (Code Pt ) 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) ---------------------------------------------------------------------------------------- --- Sat 27 Dec 2003 Day 361 --- 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 00 02 11 3C147 23 10 00 20.8 43.0 -6.5 -61.0 0 1 1 0 00 01 51 00 05 11 --- 23 13 00 21.2 43.3 -6.5 -61.5 180 F 1 1330 00 27 22 J0423-0120 23 35 15 14.0 101.5 -4.8 -54.1 1286 1 1 1330 00 27 02 00 30 21 =0420-014 23 38 15 14.6 101.9 -4.8 -54.0 180 F 1 2660 00 30 36 3C120 23 38 29 16.4 94.8 -4.9 -55.8 4 1 1 2660 00 30 21 00 50 33 --- 23 58 29 20.6 97.8 -4.6 -55.3 1197 F 1 10736 00 50 48 J0423-0120 23 58 45 18.7 105.1 -4.4 -52.9 5 1 1 10736 00 50 33 00 53 48 =0420-014 00 01 45 19.3 105.6 -4.4 -52.7 180 F 1 12038 00 54 04 3C120 00 02 01 21.3 98.3 -4.5 -55.2 5 1 2 12038 00 53 48 01 14 00 --- 00 22 01 25.3 101.4 -4.2 -54.4 1197 R 1 15079 01 15 05 3C147 00 23 05 31.6 48.2 -5.3 -72.7 23 1 2 15079 01 14 45 01 18 04 --- 00 26 05 32.0 48.3 -5.3 -73.2 180 R 1 13749 01 20 04 3C120 00 28 05 26.6 102.4 -4.1 -54.1 78 1 2 13749 01 19 44 01 40 00 --- 00 48 05 30.6 105.8 -3.8 -53.0 1197 R 1 5638 01 40 18 J0423-0120 00 48 23 28.4 113.6 -3.6 -49.2 7 1 2 5638 01 40 00 01 43 18 =0420-014 00 51 23 28.9 114.2 -3.5 -48.9 180 R 1 4321 01 43 36 3C120 00 51 41 31.3 106.4 -3.7 -52.8 7 1 3 4321 01 43 18 02 03 32 --- 01 11 41 35.2 110.1 -3.4 -51.2 1197 F 1 3775 02 03 50 J0423-0120 01 11 59 32.7 118.2 -3.2 -46.8 6 1 3 3775 02 03 32 02 06 50 =0420-014 01 14 59 33.3 118.8 -3.1 -46.4 180 F 1 5090 02 07 07 3C120 01 15 17 35.9 110.7 -3.3 -50.9 7 1 3 5090 02 06 50 02 27 04 --- 01 35 17 39.7 114.8 -3.0 -48.9 1197 F 1 13188 02 28 54 3C147 01 37 06 43.3 51.0 -4.1 -85.2 61 1 3 13188 02 28 34 02 31 53 --- 01 40 06 43.7 51.1 -4.0 -85.7 180 F 1 14518 02 33 53 3C120 01 42 06 41.0 116.3 -2.9 -48.1 70 1 4 14518 02 33 33 02 53 50 --- 02 02 06 44.6 120.9 -2.5 -45.4 1197 R 1 12571 Schedule for VLBA_PT (Code Pt ) 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) ---------------------------------------------------------------------------------------- --- Sat 27 Dec 2003 Day 361 --- 02 54 10 J0423-0120 02 02 27 41.4 129.7 -2.4 -39.5 8 1 4 12571 02 53 50 02 57 09 =0420-014 02 05 27 41.9 130.5 -2.3 -38.9 180 R 1 11239 02 57 30 3C120 02 05 47 45.3 121.9 -2.5 -44.8 7 1 4 11239 02 57 09 03 17 26 --- 02 25 47 48.7 127.2 -2.1 -41.4 1197 R 1 3126 03 17 46 J0423-0120 02 26 07 45.0 136.2 -2.0 -34.9 6 1 4 3126 03 17 26 03 20 46 =0420-014 02 29 07 45.4 137.0 -1.9 -34.3 180 R 1 1797 03 21 06 3C120 02 29 27 49.3 128.2 -2.1 -40.7 6 1 5 1797 03 20 46 03 41 02 --- 02 49 27 52.4 134.4 -1.7 -36.4 1197 F 1 6314 03 42 58 3C147 02 51 23 55.2 50.2 -2.9 -100.0 54 1 5 6314 03 42 38 03 45 58 --- 02 54 23 55.7 50.1 -2.8 -100.7 180 F 1 7644 03 47 57 3C120 02 56 23 53.4 136.7 -1.6 -34.7 56 1 5 7644 03 47 37 04 07 54 --- 03 16 23 56.0 144.0 -1.3 -29.2 1197 F 1 15755 04 08 14 J0423-0120 03 16 43 51.1 152.8 -1.1 -22.2 4 1 5 15755 04 07 54 04 11 14 =0420-014 03 19 43 51.4 153.9 -1.1 -21.3 180 F 1 17088 04 11 34 3C120 03 20 04 56.4 145.5 -1.2 -28.0 4 1 6 17088 04 11 14 04 31 31 --- 03 40 04 58.5 153.9 -0.9 -21.4 1197 R 1 9999 04 31 51 J0423-0120 03 40 24 53.0 161.9 -0.7 -14.8 3 1 6 9999 04 31 31 04 34 51 =0420-014 03 43 24 53.1 163.1 -0.7 -13.9 180 R 1 8667 04 35 11 3C120 03 43 44 58.9 155.5 -0.8 -20.1 3 1 6 8667 04 34 51 04 55 08 --- 04 03 44 60.3 165.0 -0.5 -12.4 1197 R 1 555 04 57 03 3C147 04 05 40 66.4 41.5 -1.6 -122.0 27 1 7 555 04 56 43 05 00 02 --- 04 08 40 66.8 40.8 -1.6 -123.1 180 F 1 775 05 02 02 3C120 04 10 40 60.6 168.4 -0.4 -9.6 29 1 7 775 05 01 42 05 21 59 --- 04 30 40 61.1 178.6 0.0 -1.2 1197 F 1 8887 05 22 19 J0423-0120 04 31 00 54.3 183.2 0.1 2.7 1 1 7 8887 05 21 59 05 25 19 =0420-014 04 34 00 54.3 184.5 0.2 3.7 180 F 1 10219 05 25 39 3C120 04 34 21 61.1 180.5 0.0 0.4 1 1 8 10219 05 25 19 05 45 36 --- 04 54 21 60.7 190.7 0.3 8.8 1197 R 1 16868 Schedule for VLBA_PT (Code Pt ) 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) ---------------------------------------------------------------------------------------- --- Sat 27 Dec 2003 Day 361 --- 05 45 56 J0423-0120 04 54 41 53.6 193.2 0.5 10.9 0 1 8 16868 05 45 36 05 48 55 =0420-014 04 57 41 53.5 194.5 0.6 11.9 180 R 1 15536 05 49 16 3C120 04 58 01 60.5 192.5 0.4 10.4 0 1 8 15536 05 48 55 06 09 12 --- 05 18 01 59.3 202.1 0.7 18.2 1197 R 1 7423 06 11 17 3C147 05 20 07 73.9 373.4 -0.4 -162.8 5 1 8 7423 06 10 57 06 14 17 --- 05 23 07 74.0 371.7 -0.3 -165.0 180 R 1 6093 06 16 25 3C120 05 25 15 58.7 205.4 0.9 20.9 11 1 9 6093 06 16 05 06 36 22 --- 05 45 15 56.6 213.9 1.2 27.6 1197 F 1 2019 06 36 42 J0423-0120 05 45 36 49.5 212.7 1.4 26.5 0 1 9 2019 06 36 22 06 39 42 =0420-014 05 48 36 49.2 213.7 1.4 27.3 180 F 1 3351 06 40 02 3C120 05 48 56 56.2 215.4 1.3 28.7 0 1 9 3351 06 39 42 06 59 58 --- 06 08 56 53.6 222.8 1.6 34.3 1197 F 1 11463 07 00 19 J0423-0120 06 09 16 46.6 220.4 1.8 32.4 0 1 9 11463 06 59 58 07 03 18 =0420-014 06 12 16 46.2 221.3 1.8 33.0 180 F 1 12796 07 03 39 3C120 06 12 36 53.1 224.0 1.7 35.2 0 1 10 12796 07 03 18 07 23 35 --- 06 32 36 50.0 230.4 2.0 39.7 1197 R 1 14291 07 25 13 3C147 06 34 15 71.8 332.7 0.9 144.0 24 1 10 14291 07 24 53 07 28 13 --- 06 37 15 71.5 331.5 0.9 142.3 180 R 1 12961 07 30 12 3C120 06 39 15 49.0 232.3 2.1 41.0 48 1 10 12961 07 29 52 07 50 09 --- 06 59 15 45.6 237.7 2.4 44.5 1197 R 1 4850 07 50 30 J0423-0120 06 59 35 38.9 234.0 2.6 42.0 1 1 10 4850 07 50 09 07 53 29 =0420-014 07 02 35 38.4 234.7 2.7 42.4 180 R 1 3518 07 53 49 3C120 07 02 55 44.9 238.6 2.5 45.1 1 1 11 3518 07 53 29 08 13 46 --- 07 22 55 41.3 243.3 2.8 47.8 1197 F 1 4595 08 14 06 J0423-0120 07 23 16 34.8 239.4 3.0 45.3 1 1 11 4595 08 13 46 08 17 06 =0420-014 07 26 16 34.3 240.0 3.0 45.7 180 F 1 5927 08 17 26 3C120 07 26 36 40.6 244.1 2.9 48.3 1 1 11 5927 08 17 06 08 37 23 --- 07 46 36 36.9 248.3 3.2 50.4 1197 F 1 14040 Schedule for VLBA_PT (Code Pt ) 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) ---------------------------------------------------------------------------------------- --- Sat 27 Dec 2003 Day 361 --- 08 39 18 3C147 07 48 32 62.3 313.7 2.1 112.2 59 1 11 14040 08 38 58 08 42 18 --- 07 51 32 61.8 313.3 2.1 111.3 180 F 1 15370 08 44 45 3C286 07 54 00 20.9 426.6 -5.6 -61.6 59 1 11 15370 08 44 25 08 47 45 --- 07 57 00 21.4 426.9 -5.6 -61.9 180 F 1 16700 08 50 00 3C120 07 59 15 34.4 250.7 3.4 51.6 12 1 12 16700 08 49 40 09 09 56 --- 08 19 15 30.5 254.3 3.8 53.0 1197 R 1 10389 09 10 17 J0423-0120 08 19 35 24.3 250.2 3.9 51.0 2 1 12 10389 09 09 56 09 13 16 =0420-014 08 22 35 23.7 250.7 4.0 51.2 180 R 1 9057 09 13 36 3C120 08 22 55 29.7 255.0 3.8 53.3 2 1 12 9057 09 13 16 09 33 33 --- 08 42 55 25.7 258.3 4.2 54.3 1197 R 1 946 09 33 53 J0423-0120 08 43 15 19.7 254.1 4.3 52.6 2 1 13 946 09 33 33 09 36 52 =0420-014 08 46 15 19.1 254.6 4.4 52.8 180 F 1 383 09 37 12 3C120 08 46 35 25.0 258.9 4.2 54.5 2 1 13 383 09 36 52 09 57 08 --- 09 06 35 20.9 262.0 4.6 55.2 1197 F 1 8492 09 58 33 3C147 09 07 59 49.8 308.8 3.4 92.8 20 1 13 8492 09 58 13 10 01 32 --- 09 10 59 49.3 308.8 3.5 92.2 180 F 1 9822 10 04 01 3C286 09 13 28 36.4 434.9 -4.3 -67.8 59 1 13 9822 10 03 41 10 07 00 --- 09 16 28 37.0 435.2 -4.2 -67.9 180 F 1 11152 10 09 12 3C120 09 18 40 18.4 263.8 4.8 55.6 11 1 14 11152 10 08 52 10 29 09 --- 09 38 40 14.3 266.7 5.1 55.9 1197 R 1 15937 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 28.435702 0420-014 -01 27 28.70002 *-01 20 33.06531 -01 19 58.14194 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 24.289860 0430+052 05 14 59.61664 * 05 21 15.61942 05 21 48.73586 * 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 55.670867 0538+498 49 49 42.83693 * 49 51 07.23356 49 51 20.46366 * 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 18.361974 1328+307 30 45 58.64021 * 30 30 32.95885 30 29 10.90875 * 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 142.1 3C120 148.3 3C147 152.4 3C286 88.0 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