COVER LETTER: This is BH151A. Summary: BH151A, B, and C: We request a "mini"-campaign of 3 VLBA L-band observations of M87 for late Jan/early Feb while the TeV telescopes are observing (necessary for dark moon time). The first epoch (A) should begin around Jan 30-Feb 3, then the other two should follow by 5+/- 2 days (epoch B) and 10 +/-2 days (epoch C). -------------------------------------------------------------------- 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 (A) between Jan 30 and Feb 3 2008. Excluded dates plus reason [none]: Preferred interval between segments in days [none]: Epochs B and C should follow by 5+/- 2 days and 10 +/-2 days. Special conditions (e.g., a series with different spacings in time) [See the comments at the top.]: BEGIN = PROJECT_INFO PROJECT_CODE = BH151A TITLE = Monitoring Knot HST-1 in M87 Jet PI_NAME = Teddy Cheung PI_ADDRESS = NASA GSFC PI_ADDRESS = Code 661 PI_ADDRESS = Greenbelt MD 20771, USA PI_PHONE = 301 286 5749 PI_OBS_PHONE = PI_EMAIL = ccheung@milkyway.gsfc.nasa.gov PI_FAX = 301 286 1682 START = 2008-033/06:55:04 STOP = 2008-033/14:44:30 CORRELATOR = SOCORRO END = PROJECT_INFO BEGIN = STATION_SETUP STATION = VLBA RECORD_SCANS = 26 RECORD_HOURS = 7.26 FE = 20cm omit 20cm omit NUM_CHANNELS = 8 FORMAT = VLBA1:4 SPEEDUP = 2.00 IF = A C A C A C A C BBC_SB = L L L L L L L L NET_SB = U U U U U U U U POL = R L R L R L R L BEGIN = FREQUENCY_SET LO_SUM = 1651.49 1651.49 1659.49 1659.49 1667.49 1667.49 1675.49 1675.49 BBC_FREQUENCY = 748.51 748.51 740.51 740.51 732.51 732.51 724.51 724.51 BANDWIDTH = 8.000 8.000 8.000 8.000 8.000 8.000 8.000 8.000 END = FREQUENCY_SET END = STATION_SETUP BEGIN = STATION_INFO STATION_ID = SC STATION_NAME = VLBA_SC AUTO_ALLOCATE = ON AUTO_REVERSE = ON TAPES = 0 PASSES = 0 DISK = 353.2 START = 2008-033/06:55:04 STOP = 2008-033/14:36:54 END = STATION_INFO BEGIN = STATION_INFO STATION_ID = HN STATION_NAME = VLBA_HN AUTO_ALLOCATE = ON AUTO_REVERSE = ON TAPES = 0 PASSES = 0 DISK = 387.5 START = 2008-033/06:55:04 STOP = 2008-033/14:36:54 END = STATION_INFO BEGIN = STATION_INFO STATION_ID = NL STATION_NAME = VLBA_NL AUTO_ALLOCATE = ON AUTO_REVERSE = ON TAPES = 0 PASSES = 0 DISK = 421.7 START = 2008-033/06:55:04 STOP = 2008-033/14:44:30 END = STATION_INFO BEGIN = STATION_INFO STATION_ID = FD STATION_NAME = VLBA_FD AUTO_ALLOCATE = ON AUTO_REVERSE = ON TAPES = 0 PASSES = 0 DISK = 421.7 START = 2008-033/06:55:04 STOP = 2008-033/14:44:30 END = STATION_INFO BEGIN = STATION_INFO STATION_ID = LA STATION_NAME = VLBA_LA AUTO_ALLOCATE = ON AUTO_REVERSE = ON TAPES = 0 PASSES = 0 DISK = 421.7 START = 2008-033/06:55:04 STOP = 2008-033/14:44:30 END = STATION_INFO BEGIN = STATION_INFO STATION_ID = PT STATION_NAME = VLBA_PT AUTO_ALLOCATE = ON AUTO_REVERSE = ON TAPES = 0 PASSES = 0 DISK = 421.7 START = 2008-033/06:55:04 STOP = 2008-033/14:44:30 END = STATION_INFO BEGIN = STATION_INFO STATION_ID = KP STATION_NAME = VLBA_KP AUTO_ALLOCATE = ON AUTO_REVERSE = ON TAPES = 0 PASSES = 0 DISK = 421.7 START = 2008-033/06:55:04 STOP = 2008-033/14:44:30 END = STATION_INFO BEGIN = STATION_INFO STATION_ID = OV STATION_NAME = VLBA_OV AUTO_ALLOCATE = ON AUTO_REVERSE = ON TAPES = 0 PASSES = 0 DISK = 421.7 START = 2008-033/06:55:04 STOP = 2008-033/14:44:30 END = STATION_INFO BEGIN = STATION_INFO STATION_ID = BR STATION_NAME = VLBA_BR AUTO_ALLOCATE = ON AUTO_REVERSE = ON TAPES = 0 PASSES = 0 DISK = 421.7 START = 2008-033/06:55:04 STOP = 2008-033/14:44:30 END = STATION_INFO BEGIN = STATION_INFO STATION_ID = MK STATION_NAME = VLBA_MK AUTO_ALLOCATE = ON AUTO_REVERSE = ON TAPES = 0 PASSES = 0 DISK = 313.6 START = 2008-033/08:55:36 STOP = 2008-033/14:44:30 END = STATION_INFO BEGIN = SOURCE_INFO SOURCE_NAME = 3C273 SOURCE_RA = 12h29m06.699732s SOURCE_DEC = 02d03'08.59815" END = SOURCE_INFO BEGIN = SOURCE_INFO SOURCE_NAME = 3C274 SOURCE_RA = 12h30m49.423381s SOURCE_DEC = 12d23'28.04383" END = SOURCE_INFO BEGIN = SOURCE_INFO SOURCE_NAME = 3C286 SOURCE_RA = 13h31m08.288048s SOURCE_DEC = 30d30'32.95924" END = SOURCE_INFO BEGIN = CORRELATOR_PARAMETERS POLARIZATION = YES TIME_AVERAGE = 2.000 FFT_SIZE = 256 SPECTRAL_AVERAGE = 8 WINDOW = UNIFORM OUTPUT_TAPE = FTP DATA_OUTPUT_RATE = 112.64 DATA_SET_SIZE = 1341.0 SOURCE_POS_ORIGIN = STANDARD END = CORRELATOR_PARAMETERS