COVER INFORMATION Station: VLBA_HN (Code Hn ) Experiment: Monitoring Knot HST-1 in M87 Jet Exp. Code: BC167E Schedule Version: 1.00 Processed by SCHED version: 6.05 June 2006 PI: Teddy Cheung Address: KIPAC, Stanford University Varian Physics Bldg, 382 Via Pueblo Mall Stanford CA 94305-4060, USA Phone: 650 736 7883 EMAIL: teddy3c@stanford.edu Fax: 650 725 4096 Phone during observation: 650 736 7883 Observing mode: 18cm 128-8-1 Notes: 3C286 is for EVPA calibration at 18cm 3C273 is Fringe finder and for use in CROSSPOL COVER LETTER: This is BC167E. BC167 SUMMARY: 1. Nov06 (VLBA L band for 8 hrs = BC167 A) - observed 2. Feb07 (VLBA L band for 8 hrs = BC167 B) - observed 3. May07 (VLBA L band, and P+50cm for 8 hrs each = BC167 C, D) coordinated with VLA A-config run. 4. Early Aug07 (VLBA L band, and P+50cm for 8 hrs each = BC167 E, F) coordinated with VLA A-config run. 5. Dec07 (VLBA L band, and P+50cm for 8 hrs each = BC167 G, H) coordinated with VLA B-config run. -------------------------------------------------------------------- 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 [7]: 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]: This epoch any time in August 2007 (prefer early month) Excluded dates plus reason [none]: 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_HN (Code Hn ) Page 2 Monitoring Knot HST-1 in M87 Jet 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. For disks, the footages are really the GBytes TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. 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) SYNC ---------------------------------------------------------------------------------------- --- Mon 20 Aug 2007 Day 232 --- Next scan frequencies: 1651.49 1651.49 1659.49 1659.49 1667.49 1667.49 1675.49 1675.49 Next BBC frequencies: 748.51 748.51 740.51 740.51 732.51 732.51 724.51 724.51 Next scan bandwidths: 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 17 47 45 3C286 10 54 32 56.5 98.7 -2.6 -57.1 0 1 1 0 17 47 45 17 53 14 --- 11 00 02 57.5 99.9 -2.5 -56.8 329 F 1 5 17 48 08 17 54 14 3C273 11 01 02 44.6 148.1 -1.5 -22.8 22 1 1 5 17 54 14 17 59 43 --- 11 06 32 45.1 149.9 -1.4 -21.5 329 F 1 11 17 54 37 18 00 42 3C274 11 07 32 54.5 143.1 -1.4 -26.7 35 1 1 11 18 00 42 18 30 38 --- 11 37 32 57.3 155.2 -0.9 -18.3 1795 F 1 40 18 01 05 18 31 37 3C274 11 38 32 57.4 155.6 -0.9 -18.0 54 1 1 40 18 31 37 19 01 32 --- 12 08 32 59.0 169.2 -0.4 -8.1 1795 F 1 69 18 32 00 19 03 32 3C286 12 10 32 69.6 121.1 -1.3 -46.7 82 1 1 69 19 03 32 19 09 01 --- 12 16 02 70.5 123.5 -1.3 -45.1 329 F 1 74 19 03 55 19 10 53 3C273 12 17 54 49.0 175.6 -0.2 -3.2 63 1 1 74 19 10 53 19 16 22 --- 12 23 24 49.1 177.7 -0.1 -1.7 329 F 1 79 19 11 16 19 17 22 3C274 12 24 24 59.4 176.7 -0.1 -2.4 33 1 1 79 19 17 22 19 47 17 --- 12 54 24 59.0 191.1 0.4 8.3 1795 F 1 108 19 17 45 19 48 17 3C274 12 55 24 59.0 191.5 0.4 8.6 54 1 1 108 19 48 17 20 18 12 --- 13 25 24 57.2 205.0 0.9 18.5 1795 F 1 137 19 48 40 20 20 12 3C286 13 27 24 77.5 175.9 -0.1 -3.5 73 1 1 137 20 20 12 20 25 41 --- 13 32 54 77.5 181.4 0.0 1.2 329 F 1 142 20 20 35 20 26 50 3C273 13 34 03 46.6 203.9 1.1 17.2 1 1 1 142 20 26 50 20 32 19 --- 13 39 33 46.2 205.8 1.2 18.6 329 F 1 148 20 27 13 20 33 19 3C274 13 40 33 55.9 211.3 1.2 22.9 34 1 1 148 20 33 19 21 03 14 --- 14 10 33 52.6 222.5 1.7 30.4 1795 F 1 177 20 33 42 21 04 13 3C274 14 11 33 52.5 222.9 1.7 30.7 54 1 1 177 21 04 13 21 34 09 --- 14 41 33 48.4 232.5 2.2 36.5 1795 F 1 206 21 04 36 Schedule for VLBA_HN (Code Hn ) Page 3 Monitoring Knot HST-1 in M87 Jet 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. For disks, the footages are really the GBytes TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. 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) SYNC ---------------------------------------------------------------------------------------- --- Mon 20 Aug 2007 Day 232 --- 21 36 08 3C286 14 43 33 71.0 234.9 1.2 44.1 69 1 1 206 21 36 08 21 41 37 --- 14 49 03 70.2 237.5 1.3 45.7 329 F 1 211 21 36 31 21 42 49 3C273 14 50 15 38.5 227.3 2.3 32.6 3 1 1 211 21 42 49 21 48 18 --- 14 55 45 37.7 228.8 2.4 33.5 329 F 1 216 21 43 12 21 49 18 3C274 14 56 45 46.2 236.8 2.4 38.8 37 1 1 216 21 49 18 22 19 13 --- 15 26 45 41.4 244.5 2.9 42.6 1795 F 1 245 21 49 41 22 20 13 3C274 15 27 45 41.2 244.7 2.9 42.7 54 1 1 245 22 20 13 22 50 08 --- 15 57 45 36.1 251.5 3.4 45.3 1795 F 1 274 22 20 36 22 52 08 3C286 15 59 45 58.1 259.4 2.5 56.6 70 1 1 274 22 52 08 22 57 37 --- 16 05 15 57.1 260.6 2.6 56.9 329 F 1 279 22 52 31 22 58 47 3C273 16 06 26 26.8 245.3 3.6 41.7 4 1 1 279 22 58 47 23 04 16 --- 16 11 56 25.9 246.5 3.7 42.2 329 F 1 285 22 59 10 23 05 16 3C274 16 12 56 33.5 254.6 3.7 46.3 39 1 1 285 23 05 16 23 35 11 --- 16 42 56 28.1 260.5 4.2 47.7 1795 F 1 314 23 05 39 --- Start: Mon 20 Aug 2007 Day 232 -- Stop: Tue 21 Aug 2007 Day 233 --- 23 36 11 3C274 16 43 56 27.9 260.6 4.2 47.7 54 1 1 314 23 36 11 00 06 06 --- 17 13 56 22.5 266.1 4.7 48.4 1795 F 1 343 23 36 34 00 08 06 3C286 17 15 56 44.2 273.5 3.7 58.0 70 1 1 343 00 08 06 00 13 35 --- 17 21 26 43.2 274.4 3.8 57.9 329 F 1 348 00 08 29 00 14 45 3C273 17 22 36 13.6 259.9 4.9 46.2 5 1 1 348 00 14 45 00 20 14 --- 17 28 06 12.6 260.9 5.0 46.3 329 F 1 353 00 15 08 00 21 14 3C274 17 29 06 19.7 268.7 5.0 48.5 40 1 1 353 00 21 14 00 51 09 --- 17 59 06 14.2 273.8 5.5 48.4 1795 F 1 382 00 21 37 01 24 06 3C286 18 32 08 30.5 284.9 5.0 55.2 1938 1 1 382 01 24 06 01 29 35 --- 18 37 38 29.5 285.6 5.1 54.9 329 F 1 387 01 24 29 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: /home/filehost/cwalker/sched/setups/v18cm-128-8-1.set Matches group v20cm_2 in /home/filehost/cwalker/sched/catalogs/freq.dat FD filtered above 1760. SC filtered above 1740. Setup group: 2 Station: VLBA_HN Total bit rate: 128 Format: VLBA1:4 Bits per sample: 1 Sample rate: 16.000 Number of channels: 8 Speedup factor: 2.00 Disk used to record data. 1st LO= 2400.00 2400.00 2400.00 2400.00 2400.00 2400.00 2400.00 2400.00 Net SB= U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 2 3 4 5 6 7 8 BBC SB= L L L L L L L L IF = A C A C A C A C VLBA FE= 20cm omit 20cm omit VLBA Synth= 15.4 2.4 15.4 The following frequency sets based on this setup were used. Frequency Set: 2 Setup file default. Used pcal sets: 1 LO sum= 1651.49 1651.49 1659.49 1659.49 1667.49 1667.49 1675.49 1675.49 BBC fr= 748.51 748.51 740.51 740.51 732.51 732.51 724.51 724.51 Bandwd= 8.000 8.000 8.000 8.000 8.000 8.000 8.000 8.000 The following pulse cal sets were used with this setup: Pulse cal detection set: 1 PCAL = 1MHZ PCALXB1= S1 S3 S5 S7 S1 S3 S5 S7 PCALXB2= S2 S4 S6 S8 S2 S4 S6 S8 PCALFR1= 510 510 510 510 6510 6510 6510 6510 PCALFR2= 510 510 510 510 6510 6510 6510 6510 Track assignments are: track1= 2, 10, 18, 26, 3, 11, 19, 27 barrel=roll_off SOURCE LIST -- Monitoring Knot HST-1 in M87 Jet 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). Scan hours are for recording scans only. Baseline hours are only counted for scans above horizon at both ends. Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) J1229+0203 12 26 33.245836 * 12 29 06.699732 12 29 29.640681 0.30 1226+023 02 19 43.30565 * 02 03 08.59815 02 00 40.14429 0.20 * 3C273 /home/filehost/cwalker/sched/catalogs/sources.vlba 3C273B VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro J1229+02 0.640 scan hours, 24.774 baseline hours above horizon. J1230+1223 12 28 17.569279 * 12 30 49.423381 12 31 12.193029 0.31 1228+126 12 40 01.74901 * 12 23 28.04383 12 21 01.81119 0.20 * 3C274 /home/filehost/cwalker/sched/catalogs/sources.vlba J1230+12 VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 5.984 scan hours, 242.835 baseline hours above horizon. J1331+3030 13 28 49.657756 * 13 31 08.288048 13 31 29.342943 0.37 1328+307 30 45 58.64060 * 30 30 32.95924 30 28 19.93337 0.47 * 3C286 /home/filehost/cwalker/sched/catalogs/sources.vlba J1331+30 VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 0.640 scan hours, 27.151 baseline hours above horizon. 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) 3C273 38.7 3C274 37.2 3C286 52.2 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