! Sample file for VLBA dynamic scheduling. ! ! It also demonstrates phase referencing. ! ! Several now optional parameters have been commented out with ! and may be left out of your own schedules. ! ================================================================ ! Preferred Dynamic Constraints. Alter [defaults] as desired. ! ================================================================ ! The template for this section is at ! https://science.nrao.edu/facilities/vlba/observing/dynamic-constraints/view ! 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 ! r o o o o o o o o r ! Minimum number of stations [9 (6 for 3mm)]: 8 ! 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: ! Excluded dates plus reason [none]: ! Preferred interval between segments in days [none]: ! Special conditions (e.g., a series with different ! spacings in time): nighttime observations ! Start-time constraints: ! Start-time range in (hhmm - hhmm), in PT_LST [none]: 16:00 - 17:00 ! ================================================================ ! Control Information ! ================================================================ overwrite ! Prevents need to clean out old files on restart. sumitem = el1, early ! Control items in summary file. ! ================================================================ ! Cover information (PI, experiment ...) ! ================================================================ version = 1 expt = 'bg089a / Galatic Target J2115+3645 / Gregory, Capak, & Wrobel' expcode = 'eglst' obstype = 'VLBA' piname = 'J.M. Wrobel' address1 = 'NRAO, P.O. Box O' address2 = 'Socorro, NM 87801' address3 = 'USA' email = 'jwrobel@nrao.edu' phone = '+1-505-835-7392 (w) / +1-505-835-3972 (h)' obsphone = '+1-505-835-7392 (w) / +1-505-835-3972 (h)' !fax is now optional !fax = '+1-505-835-7027' obsmode = 'continuum, dual pol' note1 = 'fringe finder, manual pcal: J2202+4216=BLLAC' note2 = 'phase reference source : J2109+3532' note3 = 'phase-ref check source : J2052+3635' note4 = 'amplitude check source : J2202+4216=BLLAC' ! ================================================================ ! Correlator section ! ================================================================ correl = 'Socorro' coravg = 2 corchan = 256 cornant = 10 corpol = 'off' cortape = 'ftp' !corwtfn = 'uniform' !corsrcs = 'from .sum file only' !corship1 = 'N/A' ! ================================================================ ! In line source catalog. ! ================================================================ srccat / ! from sources.jvas: equinox=J2000 calcode=M source='J2052+3635' ra=20:52:52.0574 dec= 36:35:35.299 rem='JVAS1 1972 mJy' / source='J2109+3532' ra=21:09:31.8785 dec= 35:32:57.602 rem='JVAS1 894 mJy' / ! from proposal: calcode=' ' source='J2115+3645' ra=21:15:40.3978 dec= 36:45:50.658 rem='Proposal' / ! from an old sources.vlba: SOURCE='J2202+4216','2200+420','BLLAC','J2202+42','VR42220' RA=22:02:43.2913857 DEC= 42:16:39.979836 CALCODE='N' REMARKS='USNO - Ref Frame 1998-6, Eubanks June 1998' / endcat / ! ================================================================ ! Catalogs. ! ================================================================ ! Standard source catalogs are sources.gsfc and sources.rfc. ! This schedule uses some aliases only in sources.gsfc. !*** Note srcfile is commented out, the file given below is the default catalogue that will be used if none is specified. ! It is recommended to either specify sources inline as above, to use the default catalogue (i.e. do not specify srcfile). ! Alternatively provide your own carefully curated srcfile. !srcfile = '$SCHED/catalogs/sources.vlba' ! As above stafile and freqfile are no longer required !stafile = '$SCHED/catalogs/stations_RDBE.dat' !freqfile = '$SCHED/catalogs/freq_RDBE.dat' !4 Gbps X-band, standard setini = 4gb_ddc.4cm / nchan=8 bbfilt= 128.0 pol=dual bits=2 freqref = 8112.25 dbe = rdbe_ddc sideband = U netside = U freqoff = 0.0, 0.0, 128.0, 128.0, 256.0, 256.0, 384.0, 384.0 / endset / !2 Gbps L-band, standard setini = 2gb_ddc.20cm / nchan=8 bbfilt= 64.0 pol=dual bits=2 freqref = 1376.0 dbe = rdbe_ddc sideband = L netside = U freqoff = 0.0, 0.0, 64.0, 64.0, 128.0, 128.0, 192.0, 192.0 / endset / ! ================================================================ ! The schedule ! ================================================================ ! Time intervals (dur, gap, dwell - but not prescan) are in ! sidereal units - shorter than UT units by ~1.0027. ! Start and stop times are in LST for the specified station, ! which is VLBA_PT for VLBI dynamic scheduling projects. ! The start day can be specified as the "local sidereal day", ! which is sort of like MJD, but for sidereal time. These days ! are listed on VLA schedules. The regular UT date can also be ! used (new feature). lst = VLBA_PT year = 2022 month = 4 day = 20 start = 16:30:00 ! This is a phase referencing schedule with a lot of short scans. ! It also switches between 4 and 18 cm. ! For dynamic scheduling, the key calibration scans should be ! toward the middle. Some time could be lost off either end. ! Drive antennas to phase calibrator then start nodding ! The initial scan just allows a bit of cushion to be sure everything ! starts ok. Normally VLBA projects are not exactly back to back so ! the schedules are loaded a bit early and the antennas can get to ! source before the project actually starts. stations = SC, HN, NL, FD, LA, PT, KP, OV, BR, MK setup = 4gb_ddc.4cm source = 'J2109+3532' dwell = 120 norecord / ! Phase referencing scans on the target source. group = 6 repeat = 16 setup = 4gb_ddc.4cm source = 'J2109+3532' dwell = 60 record / source = 'J2115+3645' dwell = 180 / source = 'J2109+3532' dwell = 60 / setup = 2gb_ddc.20cm dwell = 60 / source = 'J2115+3645' dwell = 180 / source = 'J2109+3532' dwell = 60 / ! Phase referencing scan on another calibrator to check calibration ! quality. These scans are not repeated. setup = 2gb_ddc.20cm source = 'J2109+3532' dwell = 60 / source = 'J2052+3635' dwell = 180 / source = 'J2109+3532' dwell = 60 / source = 'BLLAC' dwell = 300 / setup = 4gb_ddc.4cm source = 'J2109+3532' dwell = 60 / source = 'J2052+3635' dwell = 180 / source = 'J2109+3532' dwell = 60 / source = 'BLLAC' dwell = 300 / ! More scans on the target. group = 6 repeat = 16 setup = 4gb_ddc.4cm source = 'J2109+3532' dwell = 60 / source = 'J2115+3645' dwell = 180 / source = 'J2109+3532' dwell = 60 / setup = 2gb_ddc.20cm 1;5202;0c dwell = 60 / source = 'J2115+3645' dwell = 180 / source = 'J2109+3532' dwell = 60 / ! Another calibration check. setup = 2gb_ddc.20cm source = 'J2109+3532' dwell = 60 / source = 'J2052+3635' dwell = 180 / source = 'J2109+3532' dwell = 60 / source = 'BLLAC' dwell = 300 / setup = 4gb_ddc.4cm source = 'J2109+3532' dwell = 60 / source = 'J2052+3635' dwell = 180 / source = 'J2109+3532' dwell = 60 / source = 'BLLAC' dwell = 300 / ! More on the target. group = 6 repeat = 16 setup = 4gb_ddc.4cm source = 'J2109+3532' dwell = 60 / source = 'J2115+3645' dwell = 180 / source = 'J2109+3532' dwell = 60 / setup = 2gb_ddc.20cm dwell = 60 / source = 'J2115+3645' dwell = 180 / source = 'J2109+3532' dwell = 60 / ! end file bg089a.key