! Manual changes must be made to the SCHED authored obs file for Y27. ! Change all VLA IR scans to mode XX ! Insert VLA line cal scans toward end of track ! These use mode 2AD @ BW=12.5 MHz to assure detection of cal @ low elv. ! Fast switch over 150s (60cal/90target) to obtain 24m on-source. ! 21 stations, 390 kHz, dual polz, 4000 Jy SEFD -> ~6 mJy RMS ! ! SCHED file created by Lincoln Greenhill ! BG155: December 30, HSA IC2560 H2O + Kcont via self-calibration ! Obs incl. snapshots of IC2560 K-line peak. Line peak is 0.15 Jy/10 kms. ! Incl. two blocks of atmospheric delay calibrators obsd over a range of elv. ! ! VLBA, Dec 30, 0700-1500 UT ! GBT, Dec 30, 0700-1500 UT ! VLA, Dec 30, 0634-1432 UT (0600-1400 VLALST) ! ! 512 Mbps, 2 tapes/station, 5.1h spin time, no tape change. ! 4x16MHz band (in each polz). ! ! Scan layout ! Bandpass & Delay calibrators: OJ287, 3C273B ! VLA phasing src : 1034-293 ~1-2 Jy K-band @ VLA ! IC2560 Pointing : 1034-293 (GBT) ! ! 10 minutes is available every 1-1.3h for GBT pointing. ! ! Cycle: ! +0m 4m VLBI calibrator/phasing cal ! 1m slew ! +5m 8m 10m IC2560 (9m hold phs if <19 deg elv) ! 1m slew and phase ! --------------------- ! +17m 12m 14m tape spin ! ! overwrite !sumitem = EL1, AZ1 , TAPE1, TAPE2 sumitem = EL1, EARLY, TAPE1, TAPE2 ! ! ================================================================= ! ====================== Cover Information ====================== ! ================================================================= ! EXPT = 'Mapping the accretion disk in the IC2560 AGN ...' EXPCODE = 'BG155' OBSTYPE = 'VLBA' PINAME = 'Lincoln J. Greenhill' ADDRESS1 = 'Harvard-Smithsonian CfA, MS 42' ADDRESS2 = '60 Garden St' ADDRESS3 = 'Cambridge, MA 02138 USA' PHONE = '617 495 7194' FAX = '617 495 7345' OBSPHONE = '617 851 8918' EMAIL = 'lincoln@cfa.harvard.edu' obsmode = '512-8-2 1.3 cm' CORREL = 'Socorro' OBSTYPE = 'VLBA' NOTE1 = 'VLA: toss out antennas without good positions.' NOTE2 = 'VLA: toss out outer 1-2 antennas on each arm for phasing,if nec.' NOTE3 = 'VLA: BBC 1/8 lie outside the VLA 50 MHz IF. This is OK.' NOTE4 = 'VLA (5m) & GBT (10m) pointing every roughly 1 - 1.3 hours.' VERSION = 4.0 ! ================================================================= ! ==================== Correlator Information =================== ! ================================================================= correl = "Socorro" coravg = 2 corchan = 256 cornant = 12 corpol = "off" corwtfn = "uniform" corsrcs = "VLBA Database" cortape = "DAT" corship1 = "Lincoln Greenhill" corship2 = "Harvard-Smithsonian CfA, M.S. 42" corship3 = "60 Garden St" corship4 = "Cambridge, MA 02138" ! ================================================================= ! ====================== Station Information ==================== ! ================================================================= stafile = "$SCHED/catalogs/stations.dat" ! ================================================================= ! ====================== Source Information ===================== ! ================================================================= srccat / source = 'IC2560' ra = 10:16:18.710 !Ishihara position dec = -33:33:49.74 epoch = 'J2000' calcode = ' ' vref = 'H' vdef = 'R' velocity= 3150, 3150, 2940, 2940, 2750, 2750, 2550, 2550 / ! setup based on kondratko CDSCC 2003 spectrum. Desire 3250-2450 km/s coverage. ! 7% overlap among bands. Total instantaneous coverage: 2450-3250 km/s. ! The second band is shifted 10 km/s to lower vel to accommodate VLA IF. ! The first and last basebands can be covered in only 1 polz @ the VLA. endcat / srcfile = "$SCHED/catalogs/sources.vlba" ! ================================================================= ! ========================== Setup File ========================== ! ================================================================= setinit = atmos.set / ! Based on Standard setup file: v1cm-512-8-2-L.set ! Format Tape length Density Tape speed Time/pass ! VLBA 17600 High 160.00 22:00 ! 512 Mbps - 1 pass/headpos - 2 tapes nchan = 8 bits = 2 bbfilter = 16.0 bbc = 1, 2, 3, 4, 5, 6, 7, 8 netside = U, U, U, U, U, U, U, U firstlo = 21300 freqref = 21800.49 freqoff = 0, 28, 168, 266, 350, 420, 462, 476 pol = lcp pcal = '1MHz' / endset / setinit = bg155.set / ! ! Mode 512-8-2 ! ! N.B. Antecdotal advice from Vivek(?) via Mark Reid is to have the line ! basebands positioned inbetween the atmos.set basebands to avoid ! "confusion" by the correlator. Though I do not understand this ! advice in detail, the condition is obeyed w/o modification being nec. ! Line bands fall between the hf-edge of atmos BBC3 and DC-edge of BBC4. ! nchan = 8 bits = 2 bbfilter = 16.0 bbc = 1, 2, 3, 4, 5, 6, 7, 8 netside = U, U, U, U, U, U, U, U ifchan = R, L, R, L, R, L, R, L freqref = 22001, 22001, 22017, 22017, 22031, 22031, 22047, 22047 firstlo = 21300.00 fe(2) = '1cm' fe(4) = '1cm' pcal='off' station = 'VLBA' rchan = B lchan = D / !GBT setup firstlo=21300.00 station = 'GBT_VLBA' rchan = A lchan = C / ! VLA27 setup ! ! F1 + F6 + 1000 - 600 ! VLABAND=VK VLAFEAB=17.5 VLAFECD=17.5 VLASYNA=3510.1 ! RIGHT CHANNEL; CHANNEL A VLASYNB=3489.9 ! LEFT CHANNEL; CHANNEL D FLUKEA=100.0 FLUKEB=200.0 firstlo=21410.1,21389.9,21410.1,21389.9,21410.1,21389.9,21410.1,21389.9 station = 'VLA27' rchan = A lchan = D / endset / ! ================================================================= ! ========================== The Scans ========================== ! ================================================================= LINEINIT / LINESET='H2O' RESTFREQ=22235.08 / ENDLINES / ! LINENAME='H2O' DOPSRC = 'IC2560' ! VLBA Online 07:00:00 LST ! Allow 2 minutes for VLBA to setup ! VLA startup deferred to enable completion of atmospheric cal block year=2004 day=365 autotap=2 ! Begin first atmospheric cal block STATIONS=VLBA_HN,VLBA_FD,VLBA_NL,VLBA_LA,VLBA_PT,VLBA_KP, VLBA_OV,VLBA_SC,GBT_VLBA setup=atmos.set nodop source="0119+115" dur=120 start=07:02:00 record / source="0235+164" dur=120 gap=00:04:00 / source="1357+769" dur=120 gap=00:03:00 / source="0133+476" dur=120 gap=00:02:00 / source="nrao150" dur=120 gap=00:02:00 / !source="0458-020" dur=120 gap=00:02:00 / source="1308+326" dur=120 gap=00:04:00 / source="0834-201" dur=120 gap=00:04:00 / source="OJ287" dur=120 gap=00:02:00 / ! done at 07:39; 16 minutes of tape spin. ! Point VLA on fringe finder/delay cal/bp cal source during atmospheric cal stations=VLA27 setup=bg155.set doppler gap=00:00:00 source="OJ287" dur=300 start=07:30:00 vlamode='IR' vlapeak='' norecord / source="OJ287" dur=120 gap=00:01:00 vlamode='VA' vlapeak=T / gap=00:00:00 ! Startup whole array; atmospheric cal and pointing/phasing are done STATIONS=VLBA_HN,VLBA_FD,VLBA_NL,VLBA_LA,VLBA_PT,VLBA_KP, VLBA_OV,VLBA_SC,VLA27,GBT_VLBA source="OJ287" dur=480 start=07:40:00 vlamode='VA' vlapeak=T record / ! Begin observation of IC2560 Comment='GBT 10m to point/focus for 1034-293 & IC2560.' ! VLA point stations=VLA27 source="1034-293" dur=300 gap=00:02:00 vlamode='IR' vlapeak='' norecord / source="1034-293" dur=180 gap=00:00:00 vlamode='VA' vlapeak=T / gap=00:00:00 STATIONS=VLBA_HN,VLBA_FD,VLBA_NL,VLBA_LA,VLBA_PT,VLBA_KP, VLBA_OV,VLBA_SC,VLA27,GBT_VLBA source="1034-293" dur=240 start=07:58:00 vlamode='VA' vlapeak=T record / source="IC2560" dur=480 gap =00:01:00 vlamode='VX' vlapeak=T / source="1034-293" dur=240 gap =00:01:00 vlamode='VA' vlapeak=T / source="IC2560" dur=480 gap =00:01:00 vlamode='VX' vlapeak=T / source="1034-293" dur=240 gap =00:01:00 vlamode='VA' vlapeak=T / source="IC2560" dur=480 gap =00:01:00 vlamode='VX' vlapeak=T / source="1034-293" dur=240 gap =00:01:00 vlamode='VA' vlapeak=T / source="IC2560" dur=480 gap =00:01:00 vlamode='VX' vlapeak=T / Comment='GBT >>10m point/focus for 1034-293 & IC2560.' ! VLA point & flux cal. stations=VLA27 source="3C286" dur=300 gap=00:03:00 vlamode='IR' vlapeak='' norecord / source="3C286" dur=180 gap=00:00:00 vlamode='VX' vlapeak=T / ! VLA point for IC2560 source="1034-293" dur=300 gap =00:02:00 vlamode='IR' vlapeak='' norecord / source="1034-293" dur=180 gap =00:00:00 vlamode='VA' vlapeak=T / STATIONS=VLBA_HN,VLBA_FD,VLBA_NL,VLBA_LA,VLBA_PT,VLBA_KP, VLBA_OV,VLBA_SC,VLA27,GBT_VLBA source="1034-293" dur=300 gap =00:00:00 vlamode='VA' vlapeak=T record / source="IC2560" dur=480 gap =00:01:00 vlamode='VX' vlapeak=T / source="1034-293" dur=240 gap =00:01:00 vlamode='VA' vlapeak=T / source="IC2560" dur=600 gap =00:01:00 vlamode='VX' vlapeak=T / source="1034-293" dur=240 gap =00:01:00 vlamode='VA' vlapeak=T / source="IC2560" dur=600 gap =00:01:00 vlamode='VX' vlapeak=T / source="1034-293" dur=240 gap =00:01:00 vlamode='VA' vlapeak=T / source="IC2560" dur=600 gap =00:01:00 vlamode='VX' vlapeak=T / Comment='GBT 10m point/focus 1034-293 & IC2560.' ! VLA Point for IC2560 stations=VLA27 source="1034-293" dur=300 gap=00:02:00 vlamode='IR' vlapeak='' norecord / source="1034-293" dur=180 gap=00:00:00 vlamode='VA' vlapeak=T / STATIONS=VLBA_HN,VLBA_FD,VLBA_NL,VLBA_LA,VLBA_PT,VLBA_KP, VLBA_OV,VLBA_SC,VLA27,GBT_VLBA source="1034-293" dur=300 gap =00:00:00 vlamode='VA' vlapeak=T record / source="IC2560" dur=600 gap =00:01:00 vlamode='VX' vlapeak=T / source="1034-293" dur=240 gap =00:01:00 vlamode='VA' vlapeak=T / source="IC2560" dur=600 gap =00:01:00 vlamode='VX' vlapeak=T / source="1034-293" dur=240 gap =00:01:00 vlamode='VA' vlapeak=T / source="IC2560" dur=600 gap =00:01:00 vlamode='VX' vlapeak=T / source="1034-293" dur=240 gap =00:01:00 vlamode='VA' vlapeak=T / source="IC2560" dur=600 gap =00:01:00 vlamode='VX' vlapeak=T / Comment='GBT 10m point/focus for 1034-293 & IC2560.' ! VLA Point for IC2560. stations=VLA27 source="1034-293" dur=300 gap=00:02:00 vlamode='IR' vlapeak='' norecord / source="1034-293" dur=180 gap=00:00:00 vlamode='VA' vlapeak=T / STATIONS=VLBA_HN,VLBA_FD,VLBA_NL,VLBA_LA,VLBA_PT,VLBA_KP, VLBA_OV,VLBA_SC,VLA27,GBT_VLBA source="1034-293" dur=300 gap =00:00:00 vlamode='VA' vlapeak=T record / source="IC2560" dur=600 gap =00:01:00 vlamode='VX' vlapeak=T / source="1034-293" dur=240 gap =00:01:00 vlamode='VA' vlapeak=T / source="IC2560" dur=600 gap =00:01:00 vlamode='VX' vlapeak=T / source="1034-293" dur=240 gap =00:01:00 vlamode='VA' vlapeak=T / source="IC2560" dur=480 gap =00:01:00 vlamode='VX' vlapeak=T / source="1034-293" dur=240 gap =00:01:00 vlamode='VA' vlapeak=T / source="IC2560" dur=480 gap =00:01:00 vlamode='VX' vlapeak=T / Comment='GBT 10m point/focus for 1034-293 & IC2560.' ! VLA Point for IC2560 stations=VLA27 source="1034-293" dur=300 gap=00:02:00 vlamode='IR' vlapeak='' norecord / source="1034-293" dur=180 gap=00:00:00 vlamode='VA' vlapeak=T / STATIONS=VLBA_HN,VLBA_FD,VLBA_NL,VLBA_LA,VLBA_PT,VLBA_KP, VLBA_OV,VLBA_SC,VLA27,GBT_VLBA source="1034-293" dur=300 gap =00:00:00 vlamode='VA' vlapeak=T record / source="IC2560" dur=480 gap =00:01:00 vlamode='VX' vlapeak=T / source="1034-293" dur=240 gap =00:01:00 vlamode='VA' vlapeak=T / source="IC2560" dur=480 gap =00:01:00 vlamode='VX' vlapeak=T / source="1034-293" dur=240 gap =00:01:00 vlamode='VA' vlapeak=T / ! End IC2560 observing 13:23. Continue with cal scans ! Placeholder for VLA line cal scans here. 1325-1405 UT ! Needs to be done here because IC2560 elvation is critically low. station=VLA27 gap=00:00:00 source="IC2560" dur=2400 start=13:25:00 vlamode='VX' vlapeak=T norecord / ! Begin second atmospheric cal block at 13:35 after 12m break STATIONS=VLBA_HN,VLBA_FD,VLBA_NL,VLBA_LA,VLBA_PT,VLBA_KP, VLBA_OV,VLBA_SC, GBT_VLBA setup=atmos.set nodop source="OJ287" dur=120 start=13:35:00 record / source="1308+326" dur=120 gap =00:03:00 / source="oq208" dur=120 gap =00:04:00 / source="1514-241" dur=120 gap =00:03:00 / source="NRAO530" dur=120 gap =00:02:00 / source="1606+106" dur=120 gap =00:02:00 / source="1741-038" dur=120 gap =00:02:00 / gap=00:00:00 ! Suspend atmospheric cal block 14:05 for final fringe finder/delay/bandpass cal ! while the VLA is online. stations=VLA27 setup=bg155.set doppler source="3C273B" dur=300 start=14:08:00 vlamode='IR' vlapeak='' norecord / source="3C273B" dur=180 gap =00:00:00 vlamode='VA' vlapeak=T norecord / gap=00:00:00 STATIONS=VLBA_HN,VLBA_FD,VLBA_NL,VLBA_LA,VLBA_PT,VLBA_KP, VLBA_OV,VLBA_SC,VLA27,GBT_VLBA setup=bg155.set doppler source="3C273B" dur=480 start=14:17:00 vlamode='VA' vlapeak=T record / ! End VLA track 14:25 UT ! Continue second atmospheric cal block at 14:25 STATIONS=VLBA_HN,VLBA_FD,VLBA_NL,VLBA_LA,VLBA_PT,VLBA_KP, VLBA_OV,VLBA_SC,GBT_VLBA setup=atmos.set nodop source="3C273B" dur=120 gap =00:01:00 record / source="0917+624" dur=120 gap =00:02:00 / source="0642+449" dur=120 gap =00:02:00 / source="0836+710" dur=120 gap =00:02:00 / source="4C39.25" dur=120 gap =00:02:00 / source="1357+769" dur=120 gap =00:02:00 / source="1514-241" dur=120 gap =00:05:00 / ! End observations VLBA. 14:55 UT