! Experiment BG170: HSA observations of NGC315 at 6, 3.6, 1.3, 0.7 cm ! ! part A: 6/1.3 cm, December 2/3, 2245-0445 UT, with Effelsberg, ! GBT, and the phased VLA (2030-0300 VLALST), at 512 Mbits/sec. ! ! ! 3C48 - VLA primary flux density calibrator (J0137+331) & EVPA cal ! NGC315 (0057+303) - target, also a VLA calibrator: ! BAND A B C D FLUX(Jy) UVMIN(kL) UVMAX(kL) ! ===================================================== ! 6cm C P S X X 0.59 40 ! 2cm U S S S S 0.70 ! J0237+2848, 3C84 - fringe finders (@C,K band respectively) ! J0136+4751, leakage term calibrator ! ! ! Y27 available 20:30:00 VLALST (22:54:53 UT) ! Y27 goes out at 03:00:00 VLALST (05:24:53 UT) ! VLBA, GBT, EB start out at 22:45:00 UT ! EB ends at 03:00:00 UT ! VLBA, GBT end at 04:45:00 UT ! ! ================= Cover Information ==================== version = 3 expt = 'Jet and counter-jet emission in NGC315' expcode = BG170A obstype = VLBI piname = 'Gabriele Giovannini' address1 = 'Istituto di Radioastronomia' address2 = 'Via Gobetti 101' address3 = 'I-40129 Bologna' address4 = 'Italy' phone = '+39 051 639 9415' obsphone = '+39 051 639 9415' email = 'ggiovann@ira.inaf.it' fax = '+39 051 639 9431' obsmode = 'Continuum' correl = 'Socorro' note1 = 'Contact person in Socorro is Joan Wrobel' note2 = 'Please verify frequency setup, ***particularly at Eb, VLA27***' note3 = '' note4 = 'We would like to use Y27 data to obtain also a VLA only image' ! ============== Correlator Information ================== correl = 'Socorro' coravg = 1 corchan = 32 cornant = 13 corpol = 'on' corwtfn = 'uniform' corsrcs = 'VLBA Data Base' cortape = DAT corship1 = 'Gabriele Giovannini' corship2 = 'Istituto di Radioastronomia' corship3 = 'via Gobetti 101' corship4 = '40129 Bologna - Italy' cornote1 = 'Contact person in Socorro is Joan Wrobel' ! tapeini / tpsta = VLBA, VLA27, GBT_VLBA, EB_VLBA media = 'disk', 'disk', 'disk', 'disk' / sumitem = el1, el2, dwell, slew ! ========================================================== ! setini = my6cm.set / !modetest ! based on... ! Standard setup file: v6cm-512-8-2.set ! (Produced by MAKESETUP) ! For the 6 cm band. ! Radio Astronomy allocation: 4990-5000 ! Radio Astnomomy footnote: 4950-4990 ! VLA 50MHz 4960.1 to 5010.1 with VC mode. ! VLA 6cm receiver falling off at high end. ! Reference frequency is Mark II network standard ! Merlin 4986-5002 ! Format Tape length Density Tape speed Time/pass ! VLBA/MkIII/MkIV 17600 High 160.00 22:00 ! MkIII/MkIV 8800 Low 270.00 6:31 ! 512 Mbps - 1 pass/headpos - 2 tapes (VLBA) or 2 heads (Mark IV) nchan = 8 bits = 2 bbfilter = 16.0 freqref = 4990.99 freqoff = -32.50, -32.50, -16.50, -16.50, -0.50, -0.50, 15.50, 15.50 netside = U, U, U, U, U, U, U, U pol = dual station = VLBA, GBT_VLBA, EB_VLBA, VLA27 / endset / ! ! ! setini = my1cm.set / !modetest ! based on... ! Standard setup file: v1cm-512-8-2.set ! (Produced by MAKESETUP) ! For the 1 cm band. ! Radio Astronomy allocation: 22210-22500 ! Reference frequency is Mark II network standard ! Format Tape length Density Tape speed Time/pass ! VLBA/MkIII/MkIV 17600 High 160.00 22:00 ! MkIII/MkIV 8800 Low 270.00 6:31 ! 512 Mbps - 1 pass/headpos - 2 tapes (VLBA) or 2 heads (Mark IV) nchan = 8 bits = 2 bbfilter = 16.0 freqref = 22228.99 freqoff = -32.50, -32.50, -16.50, -16.50, -0.50, -0.50, 15.50, 15.50 netside = U, U, U, U, U, U, U, U pol = dual station = VLBA, GBT_VLBA, EB_VLBA, VLA27 / endset / ! ! ! setinit= x-band.set / nchan = 8 bits = 2 bbfilter = 8.0 freqref = 8416.99 freqoff = -11.50, -11.50, -3.50, -3.50, 4.50, 4.50, 12.50, 12.50 netside = U, U, U, U, U, U, U, U pol = dual station = vla27 / endset / ! ! ! ================== Program control ===================== overwrit ! Allow SCHED to overwrite existing files !autotape=2 ! Use automatic tape allocation (n/a at Eb) ! Common header section begins vlausern = 1310 srcfile = '$SCHED/catalogs/sources.vlba' stafile = '$SCHED/catalogs/stations.dat' ! ! =================== Beginning of schedule ================= year = 2007 month = 12 day = 02 start = 22:45:00 ! UT !----------------------------------------------------------------------------- ! begin 6cm segment ! ! 22:45 UT, all stations but VLA27 enter setup = my6cm.set stations = Sc, Hn, Nl, Fd, La, Pt, Kp, Ov, Br, Mk, Gbt_vlba, Eb_vlba source = 'ngc0315' dur = 9:53 / ! 22:55 UT = 20:30 VLA LST, VLA27 enters stations = Sc, Hn, Nl, Fd, La, Pt, Kp, Ov, Br, Mk, Gbt_vlba, Eb_vlba, vla27 vlamode='va' source = 'ngc0315' dur = 10:00 / source = 'J2253+1608' dur = 10:00 / ! FF source = 'J0136+4751' dur = 5:00 / ! leak cal source = '3c48' dur = 5:00 / ! EVPA cali source = 'ngc0315' dur = 35:00 / source = '3c48' dur = 5:00 / ! EVPA cali source = 'J0136+4751' dur = 5:00 / ! leak cal source = 'ngc0315' dur = 35:00 / ! A Pointing check for Eb stations = Sc, Hn, Nl, Fd, La, Pt, Kp, Ov, Br, Mk, Gbt_vlba, vla27 source = 'J0136+4751' dur = 5:00 / ! leak cal source = '3c48' dur = 5:00 / ! EVPA cali ! Eb back in stations = Sc, Hn, Nl, Fd, La, Pt, Kp, Ov, Br, Mk, Gbt_vlba, vla27, Eb_vlba source = 'ngc0315' dur = 35:00 / source = '3c48' dur = 5:00 / ! EVPA cali source = 'J0136+4751' dur = 5:00 / ! leak cal !---------------------------------------------------------------------------- ! begin 1.3cm segment - GBT goes out for rx change ! ! leakage calibrator ! ! VLA Pointing at X-band stations = VLA27 setup = 'x-band.set' vlapeak = '' source='J0136+4751' dwell=150 vlamode = 'IR' record / vlamode='va' vlapeak='T' record ! use VLA pointing corrections for subsequent scans ! all other stations on leak cal with new setup setup = my1cm.set stations = Sc, Hn, Nl, Fd, La, Pt, Kp, Ov, Br, Mk, Eb_vlba source='J0136+4751' dwell=150 / ! all stations together on leak cal, VLA using pointing corrections stations = Sc, Hn, Nl, Fd, La, Pt, Kp, Ov, Br, Mk, vla27, Eb_vlba source = 'J0136+4751' dur = 5:00 / ! leak cal ! EVPA calibrator ! ! Eb gets time for a pointing check, GBT makes pointing scan comment='GBT pointing scan.' peak=1 stations = gbt_vlba source = '3c48' gap = 10:00 dur = 08:00 vlamode='VA' norecord / nopeak gap = 0 ! VLA Pointing at X-band stations = VLA27 setup = 'x-band.set' vlapeak = '' source='3c48' dwell=150 vlamode = 'IR' norecord / vlamode='va' vlapeak='T' record ! use VLA pointing corrections for subsequent scans ! all other stations on EVPA cal setup = my1cm.set stations = Sc, Hn, Nl, Fd, La, Pt, Kp, Ov, Br, Mk source='3c48' dwell=150 / ! all stations but Eb, Gbt together on EVPA cal, VLA using pointing corrections stations = Sc, Hn, Nl, Fd, La, Pt, Kp, Ov, Br, Mk, vla27 source = '3c48' dur = 4:00 / ! EVPA cal ! long source scan, Eb, Gbt back in ! stations = Sc, Hn, Nl, Fd, La, Pt, Kp, Ov, Br, Mk, Gbt_vlba, vla27, Eb_vlba source = 'ngc0315' dur = 35:00 / ! EVPA calibrator ! ! VLA Pointing at X-band stations = VLA27 setup = 'x-band.set' vlapeak = '' source='3c48' dwell=150 vlamode = 'IR' norecord / vlamode='va' vlapeak='T' record ! use VLA pointing corrections for subsequent scans ! all other stations remain on source setup = my1cm.set stations = Sc, Hn, Nl, Fd, La, Pt, Kp, Ov, Br, Mk, Gbt_vlba, Eb_vlba source='ngc0315' dwell=150 / ! all stations together on EVPA cal, VLA using pointing corrections stations = Sc, Hn, Nl, Fd, La, Pt, Kp, Ov, Br, Mk, Gbt_vlba, vla27, Eb_vlba source = '3c48' dur = 5:00 / ! EVPA cal ! leakage calibrator ! ! VLA Pointing at X-band stations = VLA27 setup = 'x-band.set' vlapeak = '' source='J0136+4751' dwell=150 vlamode = 'IR' norecord / vlamode='va' vlapeak='T' record ! all other stations on leak cal setup = my1cm.set stations = Sc, Hn, Nl, Fd, La, Pt, Kp, Ov, Br, Mk, Gbt_vlba, Eb_vlba source='J0136+4751' dwell=150 / ! all stations together on leak cal, VLA using pointing corrections stations = Sc, Hn, Nl, Fd, La, Pt, Kp, Ov, Br, Mk, Gbt_vlba, vla27, Eb_vlba source = 'J0136+4751' dur = 5:00 / ! EVPA cal ! Fringe finder ! ! VLA Pointing on FF at X-band stations = VLA27 setup = 'x-band.set' vlapeak = '' source='3c84' dwell=150 vlamode = 'IR' norecord / vlamode='va' vlapeak='T' record ! use VLA pointing corrections for subsequent scans ! all other stations on FF setup = my1cm.set stations = Sc, Hn, Nl, Fd, La, Pt, Kp, Ov, Br, Mk, Gbt_vlba, Eb_vlba source = '3c84' dwell = 150 / ! all station together to FF, VLA using pointing corrections stations = Sc, Hn, Nl, Fd, La, Pt, Kp, Ov, Br, Mk, Gbt_vlba, vla27, Eb_vlba source = '3c84' dur = 8:00 / ! FF !---------------------------------------------------------------------------- ! 1.3 cm segment 2, Eb is gone ! ! Eb ends, GBT makes pointing scan comment='GBT pointing scan.' peak=1 stations = gbt_vlba source = '3c48' dwell = 08:00 vlamode='VA' norecord / nopeak gap = 0 ! VLA Pointing at X-band stations = VLA27 setup = 'x-band.set' vlapeak = '' source='3c48' dwell=150 vlamode = 'IR' norecord / vlamode='va' vlapeak='T' record ! use VLA pointing corrections for subsequent scans ! all other stations but Gbt to source setup = my1cm.set stations = Sc, Hn, Nl, Fd, La, Pt, Kp, Ov, Br, Mk source='ngc0315' dwell=150 / ! short source scan waiting for Gbt stations = Sc, Hn, Nl, Fd, La, Pt, Kp, Ov, Br, Mk, vla27 source = 'ngc0315' dur = 7:35 / ! long source scan stations = Sc, Hn, Nl, Fd, La, Pt, Kp, Ov, Br, Mk, Gbt_vlba, vla27 source = 'ngc0315' dur = 25:00 / ! EVPA calibrator ! ! VLA Pointing at X-band stations = VLA27 setup = 'x-band.set' vlapeak = '' source='3c48' dwell=150 vlamode = 'IR' norecord / vlamode='va' vlapeak='T' record ! use VLA pointing corrections for subsequent scans ! all other stations on source ! setup = my1cm.set stations = Sc, Hn, Nl, Fd, La, Pt, Kp, Ov, Br, Mk, Gbt_vlba source='ngc0315' dwell=150 / ! all stations together on EVPA cal, VLA uses pointing corrections stations = Sc, Hn, Nl, Fd, La, Pt, Kp, Ov, Br, Mk, Gbt_vlba, vla27 source = '3c48' dur = 4:00 / ! EVPA cal ! leakage calibrator ! ! VLA Pointing at X-band stations = VLA27 setup = 'x-band.set' vlapeak = '' source='J0136+4751' dwell=150 vlamode = 'IR' norecord / vlamode='va' vlapeak='T' record ! all other stations to leak cal setup = my1cm.set stations = Sc, Hn, Nl, Fd, La, Pt, Kp, Ov, Br, Mk, Gbt_vlba source='J0136+4751' dwell=150 / ! all stations together on leak cal, VLA using pointing corrections stations = Sc, Hn, Nl, Fd, La, Pt, Kp, Ov, Br, Mk, Gbt_vlba, vla27 source = 'J0136+4751' dur = 4:00 / ! EVPA cal ! long source scan stations = Sc, Hn, Nl, Fd, La, Pt, Kp, Ov, Br, Mk, Gbt_vlba, vla27 source = 'ngc0315' dur = 22:45 / ! leakage calibrator ! ! VLA Pointing at X-band stations = VLA27 setup = 'x-band.set' vlapeak = '' source='J0136+4751' dwell=150 vlamode = 'IR' norecord / vlamode='va' vlapeak='T' record ! use VLA pointing corrections for subsequent scans ! all other stations on source setup = my1cm.set stations = Sc, Hn, Nl, Fd, La, Pt, Kp, Ov, Br, Mk, Gbt_vlba source='ngc0315' dwell=150 / ! all stations together on leak cal, VLA using pointing corrections stations = Sc, Hn, Nl, Fd, La, Pt, Kp, Ov, Br, Mk, Gbt_vlba, vla27 source = 'J0136+4751' dur = 4:00 / ! EVPA cal ! EVPA calibrator ! ! VLA Pointing at X-band stations = VLA27 setup = 'x-band.set' vlapeak = '' source='3c48' dwell=150 vlamode = 'IR' norecord / vlamode='va' vlapeak='T' record ! use VLA pointing corrections for subsequent scans ! all other stations to EVPA cal ! setup = my1cm.set stations = Sc, Hn, Nl, Fd, La, Pt, Kp, Ov, Br, Mk, Gbt_vlba source='3c48' dwell=150 / ! all stations together on EVPA cal, VLA uses pointing corrections stations = Sc, Hn, Nl, Fd, La, Pt, Kp, Ov, Br, Mk, Gbt_vlba, vla27 source = '3c48' dur = 4:00 / ! EVPA cal ! VLA then finishes on its own stations = VLA27 source = 'ngc0315' dur = 38:49 norecord / ! ! ! issues at 22 GHz for VLA: ! phase stability&fast switching: deal with self calibration