! ================================================================ ! Control Information ! ================================================================ overwrite ! Prevents need to clean out old files on restart. autotape = 2 ! Automatic tape allocation on 2 drive stations. sumitem = el1, early, dwell, slew ! Control items in summary file. ! ================================================================ ! In line source catalog ! ================================================================ srccat / equinox='J2000' calcode=' ' source = 'GL0957' ra=10:01:20.84864 dec=55:53:50.0535 / ! This is halfway between B and G. ! According to BH032 VLBI maps, ! BH032 13cm: cmpt A is at 10 01 20.69187 55 53 55.5910 ! BH032 13cm: cmpt B is at 10 01 20.83768 55 53 49.5392 ! BH032 13cm: cmpt G' is at 10 01 20.85959 55 53 50.5677 ! BH032 18cm: cmpt B is at 10 01 20.83527 55 53 49.5160 (differs by 20 mas in RA, 23 mas in dec) ! BH032 18cm: cmpt G' is at 10 01 20.85718 55 53 50.5438 (differs by 20 mas in RA, 24 mas in dec) ! B-A is (1.2263,-6.0518) arc seconds, magnitude 6.1748 ! G'-B is (0.1843, 1.0285) arc seconds, magnitude 1.0449 ! Note, cos(dec) = 0.5607 ! VLBA FWHM beam size at 21 cm: 5 mas ! Phased VLA HPBW at 21 cm in D array: 44 arcsec ! FOV limitation from 1% bandwidth smearing: 0.21 * HPBW * (1400 MHz / 0.5 MHz) = 3 arcsec ! FOV limitation from 1% time average smear: 3015 * HBPW / (2 sec) = 7.5 arcsec ! So, we can image BG simultaneously, but for A we should use a separate pass. ! At 1.4 GHz, fA = 40 mJy, fB = 20 mJy, fG = 0.25 mJy ! Component A is bright enough for selfcal with HSA, but visit ! an external reference source occasionally as a sanity check ! fringe finder: J0927+3902, few Jy at 20 cm ! phase reference source: J0929+5013, 7.4 deg away, ~0.7 Jy at 20 cm, but resolved by VLA ! also visit 3C286 and compact source J1035+5628 for VLA phasing and amplitude calibration endcat / ! ================================================================ ! Cover information (PI, experiment ...) ! ================================================================ version = 1 expt = 'BW083B / Central component of 0957+561 / Winn et al.' expcode = 'BW083B' obstype = 'VLBA' piname = 'Joshua N. Winn' address1 = 'Harvard-Smithsonian Center for Astrophysics' address2 = '60 Garden St. MS-51' address3 = 'Cambridge, MA 02138' email = 'jwinn@cfa.harvard.edu' phone = '+1-617-384-9663 (w) / +1-617-666-2341 (h)' obsphone = '+1-617-384-9663 (w) / +1-617-666-2341 (h)' fax = '+1-617-495-7093' obsmode = 'Standard 21cm band, 256-8-2' note1 = '256 Mbps has been approved for BW083' note2 = 'fringe finder: J0927+3902' ! ================================================================ ! Correlator section ! ================================================================ correl = 'Socorro' coravg = 2 corchan = 16 cornant = 12 corpol = 'on' corwtfn = 'uniform' corsrcs = 'in-file cat for GL0957, standard cats for others' cornote1 = 'We request 2 passes for GL0957:' ! component A cornote2 = ' 1st phase ctr: ra=10:01:20.69187 dec=55:53:55.5910 / ! components B and G' cornote3 = ' 2nd phase ctr: ra=10:01:20.84864 dec=55:53:50.0535 / cortape = 'dat' corship1 = 'Joshua N. Winn' corship2 = 'Harvard-Smithsonian Center for Astrophysics' corship3 = '60 Garden St. MS-51' corship4 = 'Cambridge, MA 02138' ! ================================================================ ! Catalogs. These are the standard ones and are the defaults. ! ================================================================ srcfile = '$SCHED/catalogs/sources.vlba' stafile = '$SCHED/catalogs/stations.dat' ! ================================================================ ! Setup file ! ================================================================ setini = vlba.21cm / band='21cm' nchan=8 bbfilt=8.0 pol=dual bits=2 / endset / ! ================================================================ ! The schedule ! ================================================================ year=2005 month=12 day=30 start = 08:00:00 setup = vlba.21cm stations = vlba_sc, vlba_hn, vlba_nl, vlba_fd, vlba_la, vlba_pt, vlba_kp, vlba_ov, vlba_br, vlba_mk, vla27, gbt_vlba ! Drive to pointing reference and phase up the VLA source = 'J1035+5628' dur = 11:00 vlamode='VA' norecord / ! Round 1 of scans on target, with sanity checks on phase reference source = 'J0929+5013' dur = 2:00 vlamode='VX' record / source = 'GL0957' dur = 13:00 vlamode='VX' record / source = 'J0929+5013' dur = 2:00 vlamode='VX' record / source = 'GL0957' dur = 13:00 vlamode='VX' record / source = 'J0929+5013' dur = 2:00 vlamode='VX' record / source = 'J1035+5628' dur = 3:00 vlamode='VA' norecord / source = 'J0929+5013' dur = 2:00 vlamode='VX' record / source = 'GL0957' dur = 13:00 vlamode='VX' record / source = 'J0929+5013' dur = 2:00 vlamode='VX' record / source = 'GL0957' dur = 13:00 vlamode='VX' record / source = 'J0929+5013' dur = 2:00 vlamode='VX' record / ! fringe finder source = 'J0927+3902' dur = 7:00 vlamode 'VA' record / ! Round 2 of scans on target source = 'J1035+5628' dur = 10:00 vlamode='VA' norecord / source = 'J0929+5013' dur = 2:00 vlamode='VX' record / source = 'GL0957' dur = 13:00 vlamode='VX' record / source = 'J0929+5013' dur = 2:00 vlamode='VX' record / source = 'GL0957' dur = 13:00 vlamode='VX' record / source = 'J0929+5013' dur = 2:00 vlamode='VX' record / source = 'J1035+5628' dur = 3:00 vlamode='VA' norecord / source = 'J0929+5013' dur = 2:00 vlamode='VX' record / source = 'GL0957' dur = 13:00 vlamode='VX' record / source = 'J0929+5013' dur = 2:00 vlamode='VX' record / source = 'GL0957' dur = 13:00 vlamode='VX' record / source = 'J0929+5013' dur = 2:00 vlamode='VX' record / ! Fringe finder and VLA calibrator source = 'J0927+3902' dur = 7:00 vlamode 'VA' record / source = '3C286' dur = 9:00 vlamode 'VA' record / ! Final round of scans on target source = 'J1035+5628' dur = 10:00 vlamode='VA' norecord / source = 'J0929+5013' dur = 2:00 vlamode='VX' record / source = 'GL0957' dur = 13:00 vlamode='VX' record / source = 'J0929+5013' dur = 2:00 vlamode='VX' record / source = 'GL0957' dur = 13:00 vlamode='VX' record / source = 'J0929+5013' dur = 2:00 vlamode='VX' record / source = 'J1035+5628' dur = 3:00 vlamode='VA' norecord / source = 'J0929+5013' dur = 2:00 vlamode='VX' record / source = 'GL0957' dur = 13:00 vlamode='VX' record / source = 'J0929+5013' dur = 2:00 vlamode='VX' record / ! end file bw083b.key