COVER INFORMATION Station: VLBA_MK (Code Mk ) Experiment: Monitoring Knot HST-1 in M87 Jet Exp. Code: BC167G Schedule Version: 1.00 Processed by SCHED version: 6.05 June 2006 PI: Teddy Cheung Address: NASA GSFC Code 661 Greenbelt MD 20771, USA Phone: 301 286 5749 EMAIL: ccheung@milkyway.gsfc.nasa.gov Fax: 301 286 1682 Phone during observation: 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 BC167G. 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. 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 December 2007 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_MK (Code Mk ) 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 ---------------------------------------------------------------------------------------- --- Fri 14 Dec 2007 Day 348 --- 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 12 12 34 3C274 07 21 55 15.9 82.3 -5.2 -72.6 0 1 1 0 12 12 34 12 42 30 --- 07 51 55 22.9 84.6 -4.7 -73.5 1795 F 1 29 12 12 57 12 44 29 3C286 07 53 55 14.5 62.4 -5.6 -75.3 97 1 1 29 12 44 29 12 49 58 --- 07 59 25 15.7 62.7 -5.5 -75.9 329 F 1 34 12 44 52 12 50 58 3C286 08 00 25 15.9 62.8 -5.5 -76.0 54 1 1 34 12 50 58 12 56 27 --- 08 05 55 17.0 63.0 -5.4 -76.7 329 F 1 40 12 51 21 12 57 27 3C274 08 06 55 26.4 85.7 -4.4 -73.8 35 1 1 40 12 57 27 13 27 22 --- 08 36 55 33.5 88.0 -3.9 -74.3 1795 F 1 69 12 57 50 13 28 22 3C274 08 37 55 33.7 88.1 -3.9 -74.3 54 1 1 69 13 28 22 13 58 17 --- 09 07 55 40.8 90.6 -3.4 -74.4 1795 F 1 97 13 28 45 14 00 17 3C286 09 09 55 30.6 65.6 -4.4 -83.8 93 1 1 97 14 00 17 14 05 46 --- 09 15 25 31.8 65.7 -4.3 -84.4 329 F 1 103 14 00 40 14 06 46 3C286 09 16 25 32.0 65.8 -4.3 -84.5 54 1 1 103 14 06 46 14 12 15 --- 09 21 55 33.2 65.9 -4.2 -85.1 329 F 1 108 14 07 09 14 13 31 3C274 09 23 11 44.4 92.0 -3.1 -74.3 48 1 1 108 14 13 31 14 43 26 --- 09 53 11 51.4 95.0 -2.6 -73.6 1795 F 1 137 14 13 54 14 44 26 3C274 09 54 11 51.6 95.1 -2.6 -73.6 54 1 1 137 14 44 26 15 14 21 --- 10 24 11 58.6 98.9 -2.1 -72.1 1795 F 1 166 14 44 49 15 16 21 3C286 10 26 11 47.0 66.2 -3.1 -93.1 90 1 1 166 15 16 21 15 21 50 --- 10 31 41 48.2 66.1 -3.0 -93.9 329 F 1 171 15 16 44 15 22 50 3C286 10 32 41 48.4 66.0 -3.0 -94.1 54 1 1 171 15 22 50 15 28 19 --- 10 38 11 49.6 65.9 -2.9 -94.9 329 F 1 177 15 23 13 15 29 19 3C274 10 39 11 62.1 101.2 -1.9 -70.9 29 1 1 177 15 29 19 15 59 14 --- 11 09 11 69.0 107.6 -1.4 -66.6 1795 F 1 206 15 29 42 Schedule for VLBA_MK (Code Mk ) 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 ---------------------------------------------------------------------------------------- --- Fri 14 Dec 2007 Day 348 --- 16 00 14 3C274 11 10 11 69.2 107.9 -1.4 -66.4 54 1 1 206 16 00 14 16 30 09 --- 11 40 11 75.7 119.4 -0.9 -57.0 1795 F 1 235 16 00 37 16 32 08 3C286 11 42 11 63.2 61.2 -1.8 -107.0 75 1 1 235 16 32 08 16 37 37 --- 11 47 41 64.3 60.4 -1.7 -108.4 329 F 1 240 16 32 31 16 38 37 3C286 11 48 41 64.5 60.2 -1.7 -108.7 54 1 1 240 16 38 37 16 44 06 --- 11 54 11 65.6 59.3 -1.6 -110.2 329 F 1 245 16 39 00 16 45 06 3C274 11 55 11 78.6 129.4 -0.6 -48.1 7 1 1 245 16 45 06 17 15 01 --- 12 25 11 82.4 168.8 -0.1 -10.8 1795 F 1 274 16 45 29 17 16 01 3C274 12 26 11 82.4 170.6 -0.1 -9.1 53 1 1 274 17 16 01 17 45 56 --- 12 56 11 80.4 219.7 0.4 38.0 1795 F 1 303 17 16 24 17 47 58 3C286 12 58 13 77.0 393.5 -0.6 -142.9 0 1 1 303 17 47 58 17 53 27 --- 13 03 43 77.6 389.1 -0.5 -147.9 329 F 1 308 17 48 21 17 54 27 3C286 13 04 43 77.7 388.3 -0.4 -148.9 54 1 1 308 17 54 27 17 59 56 --- 13 10 13 78.3 383.2 -0.4 -154.5 329 F 1 314 17 54 50 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: 10 Station: VLBA_MK 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: 10 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) J1230+1223 12 28 17.569279 * 12 30 49.423381 12 31 13.777250 0.31 1228+126 12 40 01.74901 * 12 23 28.04383 12 20 42.80889 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 30.211652 0.37 1328+307 30 45 58.64060 * 30 30 32.95924 30 27 52.10222 0.47 * 3C286 /home/filehost/cwalker/sched/catalogs/sources.vlba J1331+30 VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 1.280 scan hours, 54.301 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) 3C274 80.3 3C286 77.7 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