COVER INFORMATION Station: VLBA_HN (Code Hn ) Experiment: Monitoring Knot HST-1 in M87 Jet Exp. Code: BC167F 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: 9050cm 64-8-2 Notes: COVER LETTER: This is BC167F. 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 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 ---------------------------------------------------------------------------------------- --- Thu 23 Aug 2007 Day 235 --- Next scan frequencies: 326.49 326.49 328.49 328.49 608.99 608.99 610.99 610.99 Next BBC frequencies: 826.49 826.49 828.49 828.49 608.99 608.99 610.99 610.99 Next scan bandwidths: 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 17 35 57 3C147 10 54 32 38.3 -53.5 5.2 65.8 0 1 1 0 17 35 37 17 40 56 --- 10 59 32 37.6 -53.0 5.3 65.1 299 F 1 3 17 36 00 17 43 26 1148-001 11 02 02 45.2 162.4 -0.8 -12.8 0 1 1 3 17 43 06 17 48 25 --- 11 07 02 45.5 164.2 -0.7 -11.5 299 F 1 5 17 43 29 17 49 25 3C274 11 08 02 54.5 143.3 -1.4 -26.6 36 1 1 5 17 49 05 18 19 20 --- 11 38 02 57.3 155.4 -0.9 -18.2 1795 F 1 20 17 49 28 18 20 20 3C274 11 39 02 57.4 155.8 -0.9 -17.9 54 1 1 20 18 20 00 18 50 15 --- 12 09 02 59.0 169.4 -0.4 -7.9 1795 F 1 34 18 20 23 18 52 20 3C147 12 11 07 27.6 313.8 6.5 55.1 23 1 1 34 18 52 00 18 57 19 --- 12 16 07 26.9 314.3 6.5 54.4 299 F 1 37 18 52 23 18 59 37 1148-001 12 18 26 46.2 189.9 0.5 7.2 49 1 1 37 18 59 17 19 04 36 --- 12 23 26 46.0 191.7 0.5 8.5 299 F 1 40 18 59 40 19 05 36 3C274 12 24 26 59.4 176.8 -0.1 -2.4 27 1 1 40 19 05 16 19 35 31 --- 12 54 26 59.0 191.1 0.4 8.3 1795 F 1 54 19 05 39 19 36 31 3C274 12 55 26 59.0 191.5 0.4 8.6 54 1 1 54 19 36 11 20 06 26 --- 13 25 26 57.2 205.0 0.9 18.5 1795 F 1 69 19 36 34 20 08 32 3C147 13 27 32 18.2 322.4 7.7 43.8 42 1 1 69 20 08 12 20 13 31 --- 13 32 32 17.7 323.0 7.8 43.1 299 F 1 71 20 08 35 20 16 00 1148-001 13 35 01 40.8 215.3 1.7 25.0 71 1 1 71 20 15 40 20 20 59 --- 13 40 01 40.2 216.8 1.8 26.0 299 F 1 74 20 16 03 20 21 59 3C274 13 41 01 55.9 211.5 1.2 23.1 23 1 1 74 20 21 39 20 51 54 --- 14 11 01 52.6 222.7 1.7 30.5 1795 F 1 89 20 22 02 20 52 54 3C274 14 12 01 52.4 223.0 1.7 30.8 54 1 1 89 20 52 34 21 22 49 --- 14 42 01 48.4 232.6 2.2 36.6 1795 F 1 103 20 52 57 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 ---------------------------------------------------------------------------------------- --- Thu 23 Aug 2007 Day 235 --- 21 31 37 1148-001 14 50 51 30.9 235.4 3.0 37.0 487 1 1 103 21 31 17 21 36 36 --- 14 55 51 30.1 236.5 3.1 37.6 299 F 1 106 21 31 40 21 37 36 3C274 14 56 51 46.2 236.8 2.4 38.9 22 1 1 106 21 37 16 22 07 31 --- 15 26 51 41.4 244.5 2.9 42.6 1795 F 1 120 21 37 39 22 08 31 3C274 15 27 51 41.2 244.8 2.9 42.7 54 1 1 120 22 08 11 22 38 26 --- 15 57 51 36.1 251.5 3.4 45.3 1795 F 1 135 22 08 34 22 39 26 1148-001 15 58 51 19.8 249.7 4.1 43.4 21 1 1 135 22 39 06 22 44 25 --- 16 03 51 19.0 250.7 4.2 43.7 299 F 1 138 22 39 29 22 45 25 3C274 16 04 51 34.9 253.0 3.6 45.8 22 1 1 138 22 45 05 23 15 20 --- 16 34 51 29.6 258.9 4.1 47.4 1795 F 1 152 22 45 28 23 16 20 3C274 16 35 51 29.4 259.1 4.1 47.4 54 1 1 152 23 16 00 23 46 15 --- 17 05 51 24.0 264.6 4.6 48.3 1795 F 1 167 23 16 23 --- Start: Thu 23 Aug 2007 Day 235 -- Stop: Fri 24 Aug 2007 Day 236 --- 23 53 14 3C274 17 12 51 22.7 265.9 4.7 48.4 410 1 1 167 23 52 54 00 23 09 --- 17 42 51 17.2 271.0 5.2 48.5 1795 F 1 182 23 53 17 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: v9050cm Matches group v5090n in /home/filehost/cwalker/sched/catalogs/freq.dat Setup group: 2 Station: VLBA_HN Total bit rate: 64 Format: VLBA1:1 Bits per sample: 2 Sample rate: 4.000 Number of channels: 8 Speedup factor: 2.00 Disk used to record data. 1st LO= -500.00 -500.00 -500.00 -500.00 0.00 0.00 0.00 0.00 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= U U U U U U U U IF = B D B D 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: 2 Setup file default. Used pcal sets: 1 LO sum= 326.49 326.49 328.49 328.49 608.99 608.99 610.99 610.99 BBC fr= 826.49 826.49 828.49 828.49 608.99 608.99 610.99 610.99 Bandwd= 2.000 2.000 2.000 2.000 2.000 2.000 2.000 2.000 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 10 10 1510 1510 1010 1010 PCALFR2= 510 510 10 10 1510 1510 1010 1010 Track assignments are: track1= 2, 6, 10, 14, 18, 22, 26, 30 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) J0542+4951 05 38 43.517525 * 05 42 36.137902 05 43 11.459811 0.32 0538+498 49 49 42.83710 * 49 51 07.23373 49 51 19.04307 0.41 * 3C147 /home/filehost/cwalker/sched/catalogs/sources.vlba J0542+49 VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 0.582 scan hours, 12.050 baseline hours above horizon. J1150-0023 11 48 10.124940 * 11 50 43.870749 11 51 06.712319 0.22 * 1148-001 -00 07 13.16423 *-00 23 54.20538 -00 26 22.91937 0.34 J1150-00 /home/filehost/cwalker/sched/catalogs/sources.vlba VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 0.582 scan hours, 22.023 baseline hours above horizon. J1230+1223 12 28 17.569279 * 12 30 49.423381 12 31 12.188752 0.31 1228+126 12 40 01.74901 * 12 23 28.04383 12 21 01.60504 0.20 * 3C274 /home/filehost/cwalker/sched/catalogs/sources.vlba J1230+12 VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 6.482 scan hours, 256.797 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) 3C147 66.4 1148-001 27.8 3C274 34.6 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