! Example sched input for a simple VLBA observation. ! ! ========================================================== ! ================= Cover Information ==================== ! ========================================================== ! version = 1 expt = 'SN2008D' expcode = 'BS181' piname = 'Alicia Soderberg' address1 = 'Princeton University' address2 = 'Peyton Hall - Ivy Lane' address3 = 'Princeton, NM 08544' address4 = ' U.S.A. ' phone = '626 676 4723 ' obsphone = '626 676 4723 ' email = alicia@astro.princeton.edu fax = '609 258 8226 ' obsmode = '4cm 256-4-2 ' obstype = VLBA note1 = ' ' ! ========================================================== ! ============== Correlator Information ================== ! ========================================================== correl = Socorro coravg = 4 corchan = 16 cornant = 10 corpol = on corwtfn = uniform corsrcs = standard cortape = FTP corship1 = 'Alicia Soderberg' corship2 = 'Princeton Astrophysics, Peyton Hall - Ivy Lane' corship3 = 'Princeton, NM 08544' ! ================================================================ ! Preferred Dynamic Constraints. 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 o ! Minimum number of stations [9]: ! May we swap PT for a single VLA antenna? [no] ! Consult http://www.aoc.nrao.edu/~lsjouwer/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: Feb 4-9 ! Excluded dates plus reason [none]: ! Preferred interval between segments in days [none]: ! Special conditions (e.g., a series with different ! spacings in time): If necessary to meet the ! time constraints (Feb 4-9), we'll take weather appropriate ! for U-band rather than K-band. Note that the ! time constraint is due to the fact that the source is ! fading rapidly. ! ! ! ========================================================== ! ========================================================== ! ================== Program control ===================== ! ========================================================== ! Normally SCHED will not overwrite preexisting files. ! If you want this protection, comment this following line. overwrit ! Use automatic tape allocation. Required for most VLBA ! projects. Does not affect stations with only 1 drive. autotape = 2 ! These parameters can be used to encourage continuous tape ! motion if you have lots of short scans. See the manual. minpause = 10 ! Minimum playback tape stop duration. prestart = 20 ! Start tapes this long before scan start. sumitem = el1, az1, tape1, tpstart ! ========================================================== ! ======= Standard Source and Station Catalogs ============ ! ========================================================== ! These are sched defaults so they are not really needed. stafile = $SCHED/catalogs/stations.dat srcfile = $SCHED/catalogs/sources.vlba freqfile = $SCHED/catalogs/freq.dat ! Add a source that is not in the catalogs srccat / source = SN2008D ra = 09:09:30.6475 dec = 33:08:20.153 equinox = j2000 / endcat / ! ========================================================== ! ======================= Setup file ===================== ! ========================================================== ! setini = egvlba.4cm / band = '4cm' ! Observing band. SCHED had frequency. nchan = 4 ! Number of baseband channels. bbfilt = 16.0 ! Bandwidth per baseband channel (MHz) pol = dual ! RCP, LCP, or DUAL. bits = 2 ! Bits per sample / ! Note: Total bit rate = 2*bbfilt*nchan*bits endset / setini = egvlba.1cm / band='1cm' nchan=4 bbfilt=16.0 pol=DUAL bits=2 / endset / ! ========================================================== ! ================= Initial Scan Information ============= ! ========================================================== lst = vlba_pt year = 2008 !month = 2 day = 61218 start = 04:00:00 ! ========================================================== ! ======================== The Scans ===================== ! ========================================================== ! SN2008D is scheduled for 10 hr centered at 9 LST. So ! schedule from 4 to 14 LST. ! ! The calibrator search best fits are: ! J0911+3349 VLBA dist 0.83 deg ! J0919+3324 VLBA dist 2.03 deg ! ! I'll use J0919+3324 as my phase ref since it is not resolved ! at larger baselines. ! ! Assume VLBA apriori amplitude calibration ! ! Use J0927+3902 as a fringe finder - very strong. ! ! This file accumulates uv coverage in 2 bands. ! When not using DWELL, leave time for long slews with GAP ! Allow a readback test occasionally. ! (gap = 2:00 + speedup*minpause) ! Only things that change need to be specified. stations = VLBA_SC, VLBA_HN, VLBA_NL, VLBA_FD, VLBA_LA, VLBA_PT, VLBA_KP, VLBA_OV, VLBA_BR, VLBA_MK ! Drive antennas to phase calibrator then start nodding setup = egvlba.4cm source = 'J0919+3324' dur = 5:00 gap = 0 norecord / ! Phase referencing scans on the target source. ! First do 4cm for 1 hr, bracketed by longer phase cal scans setup = 'egvlba.4cm' source = 'J0919+3324' dur = 3:00 gap=0 record / group = 4 repeat = 6 setup = 'egvlba.4cm' source = 'J0919+3324' dur = 1:00 gap = 0 / source = 'SN2008D' dur = 4:00 / source = 'J0919+3324' dur = 1:00 / source = 'SN2008D' dur = 4:00 / source = 'J0919+3324' dur = 3:00 gap=0 / ! Fringe check setup = 'egvlba.4cm' source = 'J0927+3902' dur = 3:00 gap = 0 / setup = 'egvlba.1cm' source = 'J0927+3902' dur = 3:00 gap=0 / ! more scans on target, now at 1cm for 1 hr setup = 'egvlba.1cm' source = 'J0919+3324' dur = 3:00 gap=0 / group = 4 repeat = 12 setup = 'egvlba.1cm' source = 'J0919+3324' dur = 1:00 gap = 0 / source = 'SN2008D' dur = 2:00 / source = 'J0919+3324' dur = 1:00 / source = 'SN2008D' dur = 2:00 / source = 'J0919+3324' dur = 3:00 gap=0 / ! more scans on target, back at 4cm for 1 hr setup = 'egvlba.4cm' source = 'J0919+3324' dur = 3:00 gap=0 / group = 4 repeat = 5 setup = 'egvlba.4cm' source = 'J0919+3324' dur = 1:00 gap = 0 / source = 'SN2008D' dur = 4:00 / source = 'J0919+3324' dur = 1:00 / source = 'SN2008D' dur = 4:00 / source = 'J0919+3324' dur = 3:00 gap=0 / ! Fringe check setup = 'egvlba.4cm' source = 'J0927+3902' dur = 3:00 gap =0 / setup = 'egvlba.1cm' source = 'J0927+3902' dur = 3:00 gap =0 / ! more scans on target, now at 1cm for 4 hr setup = 'egvlba.1cm' source = 'J0919+3324' dur = 3:00 gap=0 / group = 4 repeat = 28 setup = 'egvlba.1cm' source = 'J0919+3324' dur = 1:00 gap = 0 / source = 'SN2008D' dur = 2:00 / source = 'J0919+3324' dur = 1:00 / source = 'SN2008D' dur = 2:00 / source = 'J0919+3324' dur = 3:00 gap=0 / ! more scans on target, back at 4cm for another 1 hr setup = 'egvlba.4cm' source = 'J0919+3324' dur = 3:00 gap=0 / group = 4 repeat = 6 setup = 'egvlba.4cm' source = 'J0919+3324' dur = 1:00 gap = 0 / source = 'SN2008D' dur = 4:00 / source = 'J0919+3324' dur = 1:00 / source = 'SN2008D' dur = 4:00 / source = 'J0919+3324' dur = 3:00 gap=0 / ! Fringe check setup = 'egvlba.4cm' source = 'J0927+3902' dur = 3:00 gap = 0 / setup = 'egvlba.1cm' source = 'J0927+3902' dur = 3:00 gap = 0 / ! more scans on target, now at 1cm, now for 1 hr setup = 'egvlba.1cm' source = 'J0919+3324' dur = 3:00 gap=0 / group = 4 repeat = 12 setup = 'egvlba.1cm' source = 'J0919+3324' dur = 1:00 gap = 0 / source = 'SN2008D' dur = 2:00 / source = 'J0919+3324' dur = 1:00 / source = 'SN2008D' dur = 2:00 / source = 'J0919+3324' dur = 3:00 gap=0 / ! final scans on target, back at 4cm for 1 hr setup = 'egvlba.4cm' source = 'J0919+3324' dur = 3:00 gap=0 / group = 4 repeat = 5 setup = 'egvlba.4cm' source = 'J0919+3324' dur = 1:00 gap = 0 / source = 'SN2008D' dur = 4:00 / source = 'J0919+3324' dur = 1:00 / source = 'SN2008D' dur = 4:00 / source = 'J0919+3324' dur = 3:00 gap=0 / ! Fringe check setup = 'egvlba.4cm' source = 'J0927+3902' dur = 3:00 gap = 0 / setup = 'egvlba.1cm' source = 'J0927+3902' dur = 3:00 gap = 0 / !end file bs181.key