COVER INFORMATION Station: VLBA_MK (Code Mk ) Experiment: 43 GHz polarimetry of Hydra A Exp. Code: BM215b Schedule Version: 1.00 Processed by SCHED version: NRAO internal release of 4 October 2004 PI: Enno Middelberg Address: Australia Telescope National Facility PO Box 76 Epping NSW 1710 Australia Phone: +61 2 9372 4100 EMAIL: enno.middelberg@csiro.au Fax: +61 2 9372 4310 Phone during observation: +61 2 9418 6968 Observing mode: 7 mm Notes: Schedule for VLBA_MK (Code Mk ) Page 2 43 GHz polarimetry of Hydra A 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. TPStart: Tape motion start time. Frequencies are LO sum (band edge). 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) ---------------------------------------------------------------------------------------- --- Mon 24 Jan 2005 Day 24 --- Next scan frequencies: 43201.49 43201.49 43209.49 43209.49 43217.49 43217.49 43225.49 43225.49 Next BBC frequencies: 801.49 801.49 809.49 809.49 817.49 817.49 825.49 825.49 Next scan bandwidths: 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 04 41 39 J0927+3902 02 34 16 2.6 49.2 -6.9 -66.4 0 1 1 0 04 41 39 04 46 39 --- 02 39 16 3.5 49.6 -6.8 -67.2 299 F 1 3989 05 42 48 J0927+3902 03 35 35 13.8 53.1 -5.9 -75.6 3343 1 1 3989 05 42 48 05 47 47 --- 03 40 35 14.8 53.3 -5.8 -76.3 299 F 1 7978 05 59 09 HYD_A 03 51 58 3.6 104.3 -5.4 -68.9 641 1 3 7978 05 59 09 06 42 01 --- 04 34 58 13.3 108.3 -4.7 -66.0 2573 F 1 7084 06 43 42 J0927+3902 04 36 39 25.5 55.3 -4.8 -84.5 59 1 3 7084 06 43 42 06 48 41 --- 04 41 39 26.5 55.4 -4.8 -85.2 299 F 1 11073 07 00 54 HYD_A 04 53 54 17.5 110.4 -4.4 -64.5 690 1 5 11073 07 00 54 07 43 47 --- 05 36 54 26.9 115.6 -3.7 -60.2 2573 F 1 10179 07 45 31 J0927+3902 05 38 38 37.5 55.4 -3.8 -94.2 58 1 5 10179 07 45 31 07 50 30 --- 05 43 38 38.5 55.3 -3.7 -95.0 299 F 1 14168 07 52 24 J1146+3958 05 45 32 12.2 51.7 -6.0 -74.3 55 1 6 14168 07 52 24 07 57 23 --- 05 50 32 13.2 51.9 -5.9 -75.1 299 R 1 17042 07 57 51 J1159+2914 05 50 59 7.7 61.7 -6.1 -71.6 10 1 6 17042 07 57 51 08 02 50 --- 05 55 59 8.7 62.0 -6.1 -72.1 299 R 1 13053 08 02 50 HYD_A 05 55 59 30.9 118.4 -3.4 -57.9 -50 1 8 13053 08 02 50 08 45 43 --- 06 38 59 39.4 125.8 -2.7 -51.3 2523 R 1 13947 08 47 36 J0927+3902 06 40 53 49.4 52.5 -2.8 -106.0 58 1 8 13947 08 47 36 08 52 35 --- 06 45 53 50.4 52.1 -2.7 -107.1 299 R 1 9958 08 54 35 J1146+3958 06 47 53 24.0 54.1 -5.0 -83.6 61 1 8 9958 08 54 35 08 59 34 --- 06 52 53 24.9 54.2 -4.9 -84.4 299 R 1 5969 09 03 22 J1159+2914 06 56 41 21.5 65.4 -5.1 -78.7 215 1 8 5969 09 03 22 09 08 21 --- 07 01 41 22.6 65.7 -5.0 -79.2 299 R 1 1980 Schedule for VLBA_MK (Code Mk ) Page 3 43 GHz polarimetry of Hydra A 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. TPStart: Tape motion start time. Frequencies are LO sum (band edge). 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) ---------------------------------------------------------------------------------------- --- Mon 24 Jan 2005 Day 24 --- 09 08 21 HYD_A 07 01 41 43.6 130.7 -2.3 -46.9 -49 1 10 1980 09 08 21 09 51 14 --- 07 44 41 50.6 142.2 -1.6 -36.1 2524 R 1 2874 09 52 59 J0927+3902 07 46 26 61.0 43.1 -1.7 -124.2 33 1 11 2874 09 52 59 09 57 58 --- 07 51 26 61.8 41.9 -1.6 -126.0 299 F 1 1115 09 59 44 J1146+3958 07 53 13 36.5 54.4 -3.9 -94.0 50 1 11 1115 09 59 44 10 04 43 --- 07 58 13 37.4 54.3 -3.8 -94.8 299 F 1 5104 10 08 27 J1159+2914 08 01 58 35.6 67.7 -4.0 -85.6 209 1 11 5104 10 08 27 10 13 27 --- 08 06 58 36.7 67.8 -3.9 -86.2 299 F 1 9093 10 13 27 HYD_A 08 06 58 53.6 149.7 -1.2 -29.0 -61 1 13 9093 10 13 27 10 56 20 --- 08 49 58 57.3 167.1 -0.5 -12.4 2512 F 1 8199 10 58 04 J0927+3902 08 51 42 69.3 19.9 -0.6 -155.6 0 1 13 8199 10 58 04 11 03 03 --- 08 56 42 69.7 17.4 -0.5 -158.8 299 F 1 12188 11 04 36 J1146+3958 08 58 15 48.7 51.4 -2.8 -106.5 45 1 13 12188 11 04 36 11 09 35 --- 09 03 15 49.6 50.9 -2.7 -107.6 299 F 1 16177 11 12 35 J1159+2914 09 06 16 49.7 67.8 -2.9 -93.4 163 1 14 16177 11 12 35 11 17 34 --- 09 11 16 50.7 67.7 -2.8 -94.1 299 R 1 15033 ----------- Tape Change ------------ 11 17 34 HYD_A 09 11 16 58.0 176.7 -0.1 -3.1 -79 2 2 15033 11 17 34 12 00 27 --- 09 54 16 56.9 196.2 0.6 15.6 2494 R 1 15927 12 02 12 J0927+3902 09 56 01 69.8 343.7 0.5 160.1 0 2 2 15927 12 02 12 12 07 11 --- 10 01 01 69.5 341.1 0.6 156.9 299 R 1 11938 12 08 10 J1146+3958 10 02 00 59.8 402.5 -1.8 -124.0 12 2 2 11938 12 08 10 12 13 09 --- 10 07 00 60.6 401.4 -1.7 -125.8 299 R 1 7949 12 13 57 J1159+2914 10 07 48 62.9 424.2 -1.9 -104.0 27 2 2 7949 12 13 57 12 18 57 --- 10 12 48 64.0 423.6 -1.8 -105.1 299 R 1 3960 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/v7mm-256-8-2.set Matches group v7mm_c8 in /home/filehost/cwalker/sched/catalogs/freq.dat Setup group: 1 Station: VLBA Total bit rate: 256 Format: VLBA1:2 Bits per sample: 2 Sample rate: 16.000 Number of channels: 8 Passes/head pos: 1 Speedup factor: 1.00 Tape speeds: Low density - 266.660 ips, High density - 160.00 ips Time per pass for 17600 ft, High density tapes is: 00:22:00 1st LO= 42400.00 42400.00 42400.00 42400.00 42400.00 42400.00 42400.00 42400.00 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 C A C A C A C VLBA FE= 7mm omit 7mm omit VLBA Synth= 15.4 7.6 11.6 The following frequency sets based on this setup were used. Frequency Set: 1 Setup file default. Used pcal sets: 1 LO sum= 43201.49 43201.49 43209.49 43209.49 43217.49 43217.49 43225.49 43225.49 BBC fr= 801.49 801.49 809.49 809.49 817.49 817.49 825.49 825.49 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_auto SOURCE LIST -- 43 GHz polarimetry of Hydra A 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) (B1950) (J2000) (Date) * HYD_A 09 15 41.194027 * 09 18 05.674000 09 18 21.178000 -11 53 05.03865 *-12 05 43.92000 -12 06 57.39847 From catalog imbedded in main SCHED input file. worked well in project BM166 5.369 scan hours, 198.037 baseline hours above horizon. * J0927+3902 09 23 55.319195 * 09 27 03.013916 09 27 23.482773 39 15 23.56655 * 39 02 20.85195 39 00 59.89185 From catalog imbedded in main SCHED input file. Polarization calibrator and fringe finder 0.665 scan hours, 29.918 baseline hours above horizon. * J1146+3958 11 44 21.020897 * 11 46 58.297909 11 47 15.247673 40 15 14.23970 * 39 58 34.30461 39 56 41.64506 From catalog imbedded in main SCHED input file. Polarization calibrator 0.665 scan hours, 27.674 baseline hours above horizon. * J1159+2914 11 56 57.786211 * 11 59 31.833912 11 59 48.139431 29 31 25.73884 * 29 14 43.82694 29 12 52.35470 From catalog imbedded in main SCHED input file. Polarization calibrator 0.665 scan hours, 27.009 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) HYD_A 146.3 J0927+3902 156.2 J1146+3958 132.5 J1159+2914 130.9 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