COVER INFORMATION Station: VLA27 (Code Y ) Experiment: TY004A - VLBA+Y27 phased VLA test Exp. Code: TY004A Schedule Version: 1.00 Processed by SCHED version: 6.05 June 2006 PI: Amy Mioduszewski Address: NRAO Socorro, NM 87801 Phone: (505) 835 7263 (work); (505) 838 0393 (home) EMAIL: amiodusz@nrao.edu Fax: (505) 835 7027 Phone during observation: (505) 835 7263 Observing mode: VLBA 128-8-1 at 6cm Notes: AJM will be at the VLA during this observation Fringe-finder: 3C84 Schedule for VLA27 (Code Y ) Page 2 TY004A - VLBA+Y27 phased VLA test UP: D => Below limits; H => Below horizon mask. blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Tapes: Drive, Index, Start footage / Direction, Head Group, End footage. For disks, the footages are really the GBytes TPStart: Tape motion start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. Automatic tape allocation specified. Tape positions are just estimates. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) SYNC ---------------------------------------------------------------------------------------- --- Mon 13 Aug 2007 Day 225 --- Next scan frequencies: 4971.49 4971.49 4979.49 4979.49 4987.49 4987.49 4995.49 4995.49 Next BBC frequencies: 611.39 611.39 619.39 619.39 627.39 627.39 635.39 635.39 Next scan bandwidths: 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 15 43 41 3C84 06 00 00 57.9 -64.6 2.7 90.2 0 1 1 0 15 43 41 15 53 41 --- 06 10 02 56.0 -64.6 2.8 88.6 600 F 1 10 15 44 04 15 53 41 J0310+3814 06 10 02 54.0 -70.1 3.0 82.7 -34 1 1 10 15 53 41 15 55 41 =0307+380 06 12 02 53.7 -70.0 3.0 82.4 86 F 1 12 15 53 41 15 55 41 3C84 06 12 02 55.6 -64.6 2.9 88.2 -34 1 1 12 15 55 41 15 57 41 --- 06 14 03 55.3 -64.6 2.9 87.9 86 F 1 14 15 55 41 15 57 41 J0310+3814 06 14 03 53.3 -69.9 3.0 82.2 -34 1 1 14 15 57 41 15 59 41 =0307+380 06 16 03 52.9 -69.8 3.1 81.9 86 F 1 15 15 57 41 15 59 41 3C84 06 16 03 54.9 -64.5 2.9 87.6 -34 1 1 15 15 59 41 16 01 41 --- 06 18 03 54.5 -64.5 3.0 87.3 86 F 1 17 15 59 41 16 01 41 J0310+3814 06 18 03 52.5 -69.7 3.1 81.7 -34 1 1 17 16 01 41 16 03 41 =0307+380 06 20 04 52.1 -69.6 3.1 81.5 86 F 1 19 16 01 41 16 03 41 3C84 06 20 04 54.1 -64.5 3.0 87.0 -34 1 1 19 16 03 41 16 05 41 --- 06 22 04 53.8 -64.4 3.0 86.7 86 F 1 21 16 03 41 16 05 41 J0310+3814 06 22 04 51.7 -69.5 3.2 81.2 -34 1 1 21 16 05 41 16 07 41 =0307+380 06 24 04 51.3 -69.4 3.2 81.0 86 F 1 23 16 05 41 16 07 41 3C84 06 24 04 53.4 -64.4 3.1 86.4 -34 1 1 23 16 07 41 16 09 41 --- 06 26 05 53.0 -64.4 3.1 86.1 86 F 1 25 16 07 41 16 09 41 J0310+3814 06 26 05 50.9 -69.3 3.2 80.8 -34 1 1 25 16 09 41 16 11 41 =0307+380 06 28 05 50.5 -69.2 3.3 80.5 86 F 1 27 16 09 41 16 11 41 3C84 06 28 05 52.6 -64.3 3.1 85.8 -34 1 1 27 16 11 41 16 13 41 --- 06 30 05 52.3 -64.3 3.2 85.5 86 F 1 29 16 11 41 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: /home/filehost/cwalker/sched/setups/v6cm-128-8-1.set Matches group y_vc in /home/filehost/cwalker/sched/catalogs/freq.dat In VA mode, only IFs A and D are phased. Setup group: 3 Station: VLA27 Total bit rate: 128 Format: VLBA1:4 Bits per sample: 1 Sample rate: 16.000 Number of channels: 8 Speedup factor: 2.00 Disk used to record data. 1st LO= 4360.10 4360.10 4360.10 4360.10 4360.10 4360.10 4360.10 4360.10 Net SB= U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 2 3 4 5 6 7 8 BBC SB= U U U U U U U U IF = A D A D A D A D The following frequency sets based on this setup were used. Frequency Set: 3 Setup file default. Used pcal sets: 1 LO sum= 4971.49 4971.49 4979.49 4979.49 4987.49 4987.49 4995.49 4995.49 BBC fr= 611.39 611.39 619.39 619.39 627.39 627.39 635.39 635.39 Bandwd= 8.000 8.000 8.000 8.000 8.000 8.000 8.000 8.000 The following pulse cal sets were used with this setup: Pulse cal detection set: 1 PCAL = 1MHZ PCALXB1= S1 S3 S5 S7 S1 S3 S5 S7 PCALXB2= S2 S4 S6 S8 S2 S4 S6 S8 PCALFR1= 510 510 510 510 6510 6510 6510 6510 PCALFR2= 510 510 510 510 6510 6510 6510 6510 Track assignments are: track1= 2, 10, 18, 26, 3, 11, 19, 27 barrel=roll_off VLA specific information: (LO and FI cards not needed. Defaults shown.) VLABAND: VC VLABW: 0000 FEFILTER: 0000 VLAFEAB: 0.00 VLAFECD: 0.00 VLAIF: SYSCIF VLASYNA: 3960.10 VLASYNB: 3960.10 VLAROT: VLBCROT FLUKEA: 100.00 FLUKEB: 200.00 FLUKESET: 0 Details for VLA IFs: LO Sum Frequency span VLBI FIRSTLO VLA IF A: 4960.1000 4960.1000- 5010.1000 4360.1000 VLA IF B: 4960.1000 4960.1000- 5010.1000 4360.1000 VLA IF C: 4960.1000 4960.1000- 5010.1000 4360.1000 VLA IF D: 4960.1000 4960.1000- 5010.1000 4360.1000 With new digital patch panel, VLA IF = VLB IF. SOURCE LIST -- TY004A - VLBA+Y27 phased VLA test Catalog positions marked with *. Precession of date coordinates is based on stop time of first scan. Names used in schedule marked with *. Short names used in VLA and SNAP files marked with +. Observation date used in B1950/J2000 coordinate conversion (PRECDATE): 1979.900 No adjustments are made for rates (DRA, DDEC). Scan hours are for recording scans only. Baseline hours are only counted for scans above horizon at both ends. Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * J0310+3814 03 07 37.554091 * 03 10 49.879949 03 11 19.556295 0.28 0307+380 38 03 34.46989 * 38 14 53.83687 38 16 37.88944 0.44 /home/filehost/cwalker/sched/catalogs/sources.vlba VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 0.167 scan hours, 0.391 baseline hours above horizon. J0319+4130 03 16 29.567289 * 03 19 48.160119 03 20 18.729290 0.28 0316+413 41 19 51.91677 * 41 30 42.10389 41 32 20.71476 0.41 * 3C84 /home/filehost/cwalker/sched/catalogs/sources.vlba J0319+41 VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 0.333 scan hours, 0.891 baseline hours above horizon. The solar corona can cause unstable phases for sources too close to the Sun. SCHED provides warnings at individual scans for distances less than 10 degrees. The distance from the Sun to each source in this schedule is: Source Sun distance (deg) J0310+3814 84.9 3C84 82.4 Barry Clark estimates from predictions by Ketan Desai of IPM scattering sizes that the Sun will cause amplitude reductions on the longest VLBA baselines at a solar distance of 60deg F^(-0.6) where F is in GHz. For common VLBI bands, this is: 327 MHz 117. deg 610 MHz 81. deg 1.6 GHz 45. deg 2.3 GHz 36. deg 5.0 GHz 23. deg 8.4 GHz 17. deg 15.0 GHz 12. deg 22.0 GHz 9. deg 43.0 GHz 6. deg