COVER INFORMATION Station: VLBA_HN (Code Hn ) Experiment: Monitoring Knot HST-1 in M87 Jet Exp. Code: BC167H 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: 9050cm 64-8-2 Notes: COVER LETTER: This is BC167H. 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 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_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 20 Dec 2007 Day 354 --- 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 09 48 04 3C147 10 54 32 38.3 -53.5 5.2 65.8 0 1 1 0 09 47 44 09 53 03 --- 10 59 32 37.6 -53.0 5.3 65.1 299 F 1 3 09 48 07 09 54 03 3C147 11 00 32 37.5 -52.9 5.3 65.0 54 1 1 3 09 53 43 09 59 02 --- 11 05 32 36.7 -52.5 5.4 64.3 299 F 1 5 09 54 06 10 01 18 3C274 11 07 49 54.5 143.2 -1.4 -26.7 0 1 1 5 10 00 58 10 31 13 --- 11 37 49 57.3 155.3 -0.9 -18.2 1795 F 1 20 10 01 21 10 32 13 3C274 11 38 49 57.4 155.7 -0.9 -17.9 54 1 1 20 10 31 53 11 02 08 --- 12 08 49 59.0 169.3 -0.4 -8.0 1795 F 1 34 10 32 16 11 04 13 3C147 12 10 54 27.6 313.7 6.5 55.1 23 1 1 34 11 03 53 11 09 12 --- 12 15 54 27.0 314.3 6.5 54.4 299 F 1 37 11 04 16 11 10 12 3C147 12 16 54 26.9 314.4 6.6 54.3 54 1 1 37 11 09 52 11 15 12 --- 12 21 54 26.2 314.9 6.6 53.6 299 F 1 40 11 10 15 11 17 18 3C274 12 24 01 59.4 176.5 -0.1 -2.6 28 1 1 40 11 16 58 11 47 13 --- 12 54 01 59.0 190.9 0.4 8.1 1795 F 1 54 11 17 21 11 48 13 3C274 12 55 01 59.0 191.3 0.4 8.5 54 1 1 54 11 47 53 12 18 08 --- 13 25 01 57.3 204.8 0.9 18.4 1795 F 1 69 11 48 16 12 20 14 3C147 13 27 07 18.3 322.4 7.7 43.9 41 1 1 69 12 19 54 12 25 13 --- 13 32 07 17.7 323.0 7.8 43.1 299 F 1 71 12 20 17 12 26 13 3C147 13 33 07 17.6 323.1 7.8 43.0 55 1 1 71 12 25 53 12 31 12 --- 13 38 07 17.1 323.7 7.9 42.2 299 F 1 74 12 26 16 12 33 22 3C274 13 40 17 56.0 211.2 1.2 22.8 46 1 1 74 12 33 02 13 03 17 --- 14 10 17 52.7 222.4 1.7 30.4 1795 F 1 89 12 33 25 13 04 17 3C274 14 11 17 52.5 222.8 1.7 30.6 54 1 1 89 13 03 57 13 34 12 --- 14 41 17 48.5 232.4 2.2 36.4 1795 F 1 103 13 04 20 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 20 Dec 2007 Day 354 --- 13 49 11 3C274 14 56 18 46.2 236.7 2.4 38.8 888 1 1 103 13 48 51 14 19 06 --- 15 26 18 41.5 244.4 2.9 42.5 1795 F 1 118 13 49 14 14 20 05 3C274 15 27 18 41.3 244.6 2.9 42.6 54 1 1 118 14 19 45 14 50 01 --- 15 57 18 36.2 251.4 3.4 45.3 1795 F 1 133 14 20 08 14 51 00 3C274 15 58 18 36.0 251.6 3.5 45.3 54 1 1 133 14 50 40 15 20 55 --- 16 28 18 30.7 257.7 4.0 47.1 1795 F 1 147 14 51 03 15 21 55 3C274 16 29 18 30.6 257.9 4.0 47.1 54 1 1 147 15 21 35 15 51 50 --- 16 59 18 25.1 263.4 4.5 48.1 1795 F 1 162 15 21 58 15 52 50 3C274 17 00 18 25.0 263.6 4.5 48.1 54 1 1 162 15 52 30 16 22 45 --- 17 30 18 19.5 268.9 5.0 48.5 1795 F 1 176 15 52 53 16 23 45 3C274 17 31 18 19.3 269.1 5.0 48.5 54 1 1 176 16 23 25 16 53 40 --- 18 01 18 13.8 274.1 5.5 48.4 1795 F 1 191 16 23 48 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 /users/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 16.047211 0.32 0538+498 49 49 42.83710 * 49 51 07.23373 49 51 27.68144 0.41 * 3C147 /users/cwalker/sched/catalogs/sources.vlba J0542+49 VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 1.163 scan hours, 24.101 baseline hours above horizon. J1230+1223 12 28 17.569279 * 12 30 49.423381 12 31 13.952389 0.31 1228+126 12 40 01.74901 * 12 23 28.04383 12 20 41.59696 0.20 * 3C274 /users/cwalker/sched/catalogs/sources.vlba J1230+12 VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 6.482 scan hours, 260.786 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 153.5 3C274 86.2 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