! file bc044.key ! 16aug95 - received from jconway, version 1 ! 16aug95 - modified by jwrobel, version 2 ! 17aug95 - version 3 (fix 2m UT freq change boundaries, accommodate longish ! vla slews, use corrected jconway 22cm setup) ! ! COMMENTS ! ! Phasing up source 2005+403, roll tape, use as bandpass calibrator ! and amp check source as well. ! ! Use 3C345 and 3C454.3 as fringe-finders and bandpass calibrators. ! Both need there own phase-up scans. ! ! Insert 4 scans of rapid switching between 2005 and Cygnus A ! to do phase referencing at 6cm and 22cm to allow us to register ! 22cm image relative to 6cm ! (may need to use full track 6cm images as input model) ! ! Cygnus A core position from C.Carrili 6cm VLA map, position ! agrees with J.Conway 6cm map to 0.1arcsec. ! ! ************************************************ ! *** John - Ask correlator to use its catalog *** ! *** positions for everything except cyga. *** ! ************************************************ !________________________________________________________________ ! !begin tape initialization stuff tapeini / obscode ='default' tpsta ='vlba_sc', 'vlba_hn', 'vlba_nl', 'vlba_fd', 'vlba_la', 'vlba_pt', 'vlba_kp', 'vlba_ov', 'vlba_br', 'vlba_mk', 'vla27' tpdrive =1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 tpindex =1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 tplength=17600, 17600, 17600, 17600, 17600, 17600, 17600, 17600, 17600, 17600, 17600 ndrives =2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2 nheadpos=14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14 / !end tape initialization stuff ! ! srccat / ! source='cyga' ra=19:57:44.440 dec=40:35:46.36 epoch='B1950' calcode=' ' / source='2005+403' ra=20:05:59.5600 dec=40:21:01.800 epoch='B1950' calcode='C' / ! from source.obs source='3C345' ra=16:42:58.810180 dec=39:48:36.99543 epoch='J2000' calcode='A' / ! from vlba oss source='J1635+38' ra=16:35:15.4929 dec=38:08:04.499 epoch='J2000' calcode='A' / ! from sources2000 source='3C454.3' ra=22:53:57.748297 dec=16:08:53.56305 epoch='J2000' calcode='A' / ! from vlba oss source='J2236+28' ra=22:36:22.4708 dec=28:28:57.416 epoch='J2000' calcode='A' / ! from sources2000.obs ! endcat / ! expt = 'bc044 22cm HI Absorption Toward Cygnus A Nucleus' expcode = 'bc044' version = 3 piname = 'J.E. Conway' address1 = 'Onsala Space Observatory' address2 = 'Onsala' address3 = 'Sweden, S-43992' phone = '46-31-772-5500 (work)' obsphone = '46-31-772-5500 (work)' fax = '46-31-772-5590' telex = '2400 Onspace' email = 'jconway@oso.chalmers.se (internet)' obsmode = 'VLBA non-standard' obstype = 'VLBA' correl = 'SOCORRO' note1 = '** Fringe finders/bandpasses: 3C345 & 3C454.3. **' note2 = '** One thin tape per station. Y27 refant is 27. **' note3 = '** Co-I/AOC contact is J. Wrobel. Please bug **' note4 = '** her at VLA during project if problems arise. **' ! srcfile = '/home/arana/cwalker/sched/sources2000.obs' stafile = '/home/arana/cwalker/sched/stations.dat' ! year = 1995 month = 8 day = 31 start = 22:32:00 ! approx 1400 lst at vla stations = vlba_sc, vlba_hn, vlba_nl, vlba_fd, vlba_kp, vlba_ov, vlba_br, vlba_mk, vla27 ! vlabw = '2222' ! use 12.5MHz backend filter at VLA ! ! start with no tape motion for 28 minutes to wait for pt & la ! - do vla flux density calibration (3c286) ! - do vla phasing quality verification (3c286) ! - do slew to, plus more 22cm phasing on, 2005+403 ! setup = 'bc044-6cm.set' vlaband = 'VC' source = 'J1331+30' vlamode='VA' dur=00:12:00 record = -1 / ! 3c286 ! setup = 'bc044-22cm.set' vlaband = 'VL' source = 'J1331+30' vlamode='VA' dur=00:08:00 record = -1 / ! 3c286 source = '2005+403' vlamode='VA' dur=00:08:00 record = -1 / ! ! now start tape motion at 22cm ! full vlba now, nominally, available but pt & la will have to slew ! from bc045 targets near 5pm Sun; 180deg AZ takes about 2minutes. ! stations = vlba_sc, vlba_hn, vlba_nl, vlba_fd, vlba_pt, vlba_la, vlba_kp, vlba_ov, vlba_br, vlba_mk, vla27 ! source = '2005+403' vlamode='VA' dur=00:03:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:10:00 record = 0 / source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:11:00 record = 0 / ! group 4 repeat 2 source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:11:00 record = 0 / source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:11:00 record = 0 / ! source = 'J1635+38' vlamode='VA' dur=00:05:00 record = -1 / ! rb gap source = '3C345' vlamode='VX' dur=00:13:00 record = 0 / source = '2005+403' vlamode='VA' dur=00:04:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:09:00 record = 0 / ! group 4 repeat 2 source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:11:00 record = 0 / source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:11:00 record = 0 / ! !************************************************************* ! ! Fast L-band switching ! setup = 'bc044-22cm.set' vlaband = 'VL' ! source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:04:00 record = 0 / source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:03:00 record = 0 / source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / ! ! Fast C-band switching ! setup = 'bc044-6cm.set' vlaband = 'VC' ! source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:04:00 record = 0 / source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:03:00 record = 0 / source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / ! !************************************************************ ! setup = 'bc044-22cm.set' vlaband ='VL' ! source = '2005+403' vlamode='VA' prescan 00:01:00 dur=00:03:00 record = 0 / source = 'cyga' vlamode='VX' prescan 00:00:00 dur=00:11:00 record = 0 / source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:11:00 record = 0 / ! source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:11:00 record = 0 / source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:11:00 record = 0 / ! source = 'J1635+38' vlamode='VA' dur=00:05:00 record = -1 / ! rb gap source = '3C345' vlamode='VX' dur=00:13:00 record = 0 / source = '2005+403' vlamode='VA' dur=00:05:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:08:00 record = 0 / ! group 4 repeat 2 source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:11:00 record = 0 / source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:11:00 record = 0 / ! !************************************************************ ! ! Fast L-band switching ! setup = 'bc044-22cm.set' vlaband = 'VL' ! source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:04:00 record = 0 / source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:03:00 record = 0 / source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / ! ! Fast C-band switching ! setup = 'bc044-6cm.set' vlaband = 'VC' ! source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:04:00 record = 0 / source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:03:00 record = 0 / source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / ! !************************************************************ ! setup = 'bc044-22cm.set' vlaband = 'VL' ! source = '2005+403' vlamode='VA' prescan 00:01:00 dur=00:03:00 record = 0 / source = 'cyga' vlamode='VX' prescan 00:00:00 dur=00:11:00 record = 0 / source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:11:00 record = 0 / ! source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:11:00 record = 0 / source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:11:00 record = 0 / ! source = 'J2236+28' vlamode='VA' dur=00:07:00 record = -1 / ! rb gap source = '3C454.3' vlamode='VX' dur=00:13:00 record = 0 / source = '2005+403' vlamode='VA' dur=00:07:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:06:00 record = 0 / ! group 4 repeat 2 source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:11:00 record = 0 / source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:11:00 record = 0 / ! !************************************************************ ! ! Fast L-band switching ! setup = 'bc044-22cm.set' vlaband = 'VL' ! source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:04:00 record = 0 / source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:03:00 record = 0 / source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / ! ! Fast C-band switching ! setup = 'bc044-6cm.set' vlaband ='VC' ! source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:04:00 record = 0 / source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:03:00 record = 0 / source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / ! !************************************************************ ! setup = 'bc044-22cm.set' vlaband = 'VL' ! source = '2005+403' vlamode='VA' prescan 00:01:00 dur=00:03:00 record = 0 / source = 'cyga' vlamode='VX' prescan 00:00:00 dur=00:11:00 record = 0 / source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:11:00 record = 0 / ! source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:11:00 record = 0 / source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:11:00 record = 0 / ! source = 'J2236+28' vlamode='VA' dur=00:05:00 record = -1 / ! rb gap source = '3C454.3' vlamode='VX' dur=00:13:00 record = 0 / source = '2005+403' vlamode='VA' dur=00:04:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:09:00 record = 0 / ! group 4 repeat 2 source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:11:00 record = 0 / source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:11:00 record = 0 / ! !************************************************************ ! ! Fast L-band switching ! setup = 'bc044-22cm.set' vlaband = 'VL' ! source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:04:00 record = 0 / source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:03:00 record = 0 / source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / ! ! Fast C-band switching ! setup = 'bc044-6cm.set' vlaband = 'VC' ! source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:04:00 record = 0 / source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / source = 'cyga' vlamode='VX' dur=00:03:00 record = 0 / source = '2005+403' vlamode='VA' dur=00:02:00 record = 0 / ! !************************************************************ ! setup = 'bc044-22cm.set' vlaband = 'VL' ! source = '2005+403' vlamode='VA' prescan 00:01:00 dur=00:03:00 record = 0 / source = 'cyga' vlamode='VX' prescan 00:00:00 dur=00:11:00 record = 0 / source = '2005+403' vlamode='VA' dur=00:01:00 record = 0 / ! ! end bc044.key