COVER INFORMATION Station: VLBA_LA (Code La ) Experiment: BF087 Observations of compact sources in M82 at 327MHz Exp. Code: BF087 Schedule Version: 1.10 Processed by SCHED version: 6.02 July 2005 PI: Danielle Fenech Address: Jodrell Bank Observatory Macclesfield Cheshire, England Phone: (+44) 1477 572657 EMAIL: dfenech@jb.man.ac.uk Fax: (+44) 1477 571618 Phone during observation: (+44) 1477 571321 Observing mode: 90cm 128-1-2 Notes: Schedule for VLBA_LA (Code La ) Page 2 BF087 Observations of compact sources in M82 at 327MHz 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). 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 ---------------------------------------------------------------------------------------- --- Sat 3 Dec 2005 Day 337 --- Next scan frequencies: 322.49 322.49 326.49 326.49 330.49 330.49 334.49 334.49 Next BBC frequencies: 822.49 822.49 826.49 826.49 830.49 830.49 834.49 834.49 Next scan bandwidths: 4.00 4.00 4.00 4.00 4.00 4.00 4.00 4.00 03 24 14 M82MID 01 07 30 20.9 15.9 -8.8 -39.7 0 1 1 0 03 24 14 03 54 09 --- 01 37 30 22.6 18.0 -8.3 -46.0 1795 F 1 0 03 24 37 03 58 44 2007+777 01 42 06 36.1 -15.0 5.6 87.0 242 1 1 0 03 58 44 04 12 42 --- 01 56 06 35.3 -14.9 5.8 83.6 838 F 1 0 03 59 07 04 14 41 M82MID 01 58 06 24.0 19.3 -8.0 -50.3 91 1 1 0 04 14 41 04 58 34 --- 02 42 06 27.1 21.8 -7.3 -59.5 2633 F 1 0 04 15 04 04 58 34 M82MID 02 42 06 27.1 21.8 -7.3 -59.5 -4 1 1 0 04 58 34 05 42 27 --- 03 26 06 30.6 23.7 -6.5 -68.9 2629 F 1 0 04 58 34 05 44 26 M82MID 03 28 06 30.7 23.7 -6.5 -69.4 114 1 1 0 05 44 26 06 28 19 --- 04 12 06 34.4 25.0 -5.8 -79.0 2633 F 1 0 05 44 49 06 28 19 M82MID 04 12 06 34.4 25.0 -5.8 -79.0 -4 1 1 0 06 28 19 07 12 12 --- 04 56 06 38.2 25.5 -5.0 -89.0 2629 F 1 0 06 28 19 07 14 12 M82MID 04 58 06 38.4 25.5 -5.0 -89.5 114 1 1 0 07 14 12 07 58 05 --- 05 42 06 42.2 25.1 -4.3 -100.1 2633 F 1 0 07 14 35 07 58 05 M82MID 05 42 06 42.2 25.1 -4.3 -100.1 -4 1 1 0 07 58 05 08 41 57 --- 06 26 06 45.9 23.6 -3.5 -111.4 2629 F 1 0 07 58 05 08 43 57 M82MID 06 28 06 46.1 23.5 -3.5 -111.9 114 1 1 0 08 43 57 09 27 50 --- 07 12 06 49.5 20.8 -2.8 -124.2 2633 F 1 0 08 44 20 09 27 50 M82MID 07 12 06 49.5 20.8 -2.8 -124.2 -4 1 1 0 09 27 50 10 11 43 --- 07 56 06 52.4 16.8 -2.0 -137.6 2629 F 1 0 09 27 50 10 13 42 M82MID 07 58 06 52.5 16.6 -2.0 -138.3 114 1 1 0 10 13 42 10 57 35 --- 08 42 06 54.6 11.3 -1.3 -152.9 2633 F 1 0 10 14 05 10 57 35 M82MID 08 42 06 54.6 11.3 -1.3 -152.9 -4 1 1 0 10 57 35 11 41 28 --- 09 26 06 55.9 5.0 -0.5 -168.4 2629 F 1 0 10 57 35 Schedule for VLBA_LA (Code La ) Page 3 BF087 Observations of compact sources in M82 at 327MHz 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). 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 ---------------------------------------------------------------------------------------- --- Sat 3 Dec 2005 Day 337 --- 11 46 03 2007+777 09 30 42 24.4 4.8-10.6 -18.9 206 1 1 0 11 46 03 12 06 00 --- 09 50 42 24.8 5.9-10.2 -23.4 1197 F 1 0 11 46 26 12 10 35 M82MID 09 55 18 56.2 0.4 0.0 -179.0 206 1 1 0 12 10 35 12 34 31 --- 10 19 18 56.1 -3.3 0.4 172.3 1436 F 1 0 12 10 58 12 36 31 M82MID 10 21 18 56.0 -3.6 0.4 171.5 114 1 1 0 12 36 31 13 20 24 --- 11 05 18 55.0 -10.1 1.1 155.9 2633 F 1 0 12 36 54 13 20 24 M82MID 11 05 18 55.0 -10.1 1.1 155.9 -4 1 1 0 13 20 24 14 04 16 --- 11 49 18 53.0 -15.7 1.9 141.1 2629 F 1 0 13 20 24 14 06 16 M82MID 11 51 18 52.9 -15.9 1.9 140.4 114 1 1 0 14 06 16 14 50 09 --- 12 35 18 50.1 -20.2 2.6 126.8 2633 F 1 0 14 06 39 14 50 09 M82MID 12 35 18 50.1 -20.2 2.6 126.8 -4 1 1 0 14 50 09 15 34 02 --- 13 19 18 46.8 -23.1 3.4 114.3 2629 F 1 0 14 50 09 15 36 01 M82MID 13 21 18 46.6 -23.2 3.4 113.7 114 1 1 0 15 36 01 16 19 54 --- 14 05 18 43.0 -24.9 4.1 102.2 2633 F 1 0 15 36 24 16 19 54 M82MID 14 05 18 43.0 -24.9 4.1 102.2 -4 1 1 0 16 19 54 17 03 47 --- 14 49 18 39.2 -25.5 4.9 91.5 2629 F 1 0 16 19 54 17 05 47 M82MID 14 51 18 39.0 -25.5 4.9 91.1 114 1 1 0 17 05 47 17 49 39 --- 15 35 18 35.2 -25.1 5.6 80.9 2633 F 1 0 17 06 10 17 49 39 M82MID 15 35 18 35.2 -25.1 5.6 80.9 -4 1 1 0 17 49 39 18 33 32 --- 16 19 18 31.4 -24.0 6.4 71.2 2629 F 1 0 17 49 39 18 35 32 M82MID 16 21 18 31.3 -24.0 6.4 70.8 114 1 1 0 18 35 32 19 19 25 --- 17 05 18 27.8 -22.2 7.1 61.4 2633 F 1 0 18 35 55 19 19 25 M82MID 17 05 18 27.8 -22.2 7.1 61.4 -4 1 1 0 19 19 25 20 03 17 --- 17 49 18 24.6 -19.8 7.9 52.1 2629 F 1 0 19 19 25 20 07 53 2007+777 17 53 54 45.6 9.3 -2.2 -141.0 227 1 1 0 20 07 53 20 27 49 --- 18 13 54 46.2 8.1 -1.9 -146.8 1197 F 1 0 20 08 16 20 32 25 M82MID 18 18 30 22.6 -18.0 8.3 46.0 222 1 1 0 20 32 25 20 56 21 --- 18 42 30 21.2 -16.4 8.7 41.0 1436 F 1 0 20 32 48 Schedule for VLBA_LA (Code La ) Page 4 BF087 Observations of compact sources in M82 at 327MHz 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). 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 ---------------------------------------------------------------------------------------- --- Sat 3 Dec 2005 Day 337 --- 20 56 21 M82MID 18 42 30 21.2 -16.4 8.7 41.0 -4 1 1 0 20 56 21 21 24 16 --- 19 10 30 19.7 -14.3 9.2 35.1 1671 F 1 0 20 56 21 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: egvlba.90cm Matches group v5090n in /home/filehost/cwalker/sched/catalogs/freq.dat Setup group: 4 Station: VLBA_LA Total bit rate: 128 Format: VLBA1:2 Bits per sample: 2 Sample rate: 8.000 Number of channels: 8 Speedup factor: 2.00 Disk used to record data. 1st LO= -500.00 -500.00 -500.00 -500.00 -500.00 -500.00 -500.00 -500.00 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 = B D B D B D B D VLBA FE= omit 90cm omit 90cm VLBA Synth= 15.4 15.4 15.4 The following frequency sets based on this setup were used. Frequency Set: 4 Setup file default. Used pcal sets: 1 LO sum= 322.49 322.49 326.49 326.49 330.49 330.49 334.49 334.49 BBC fr= 822.49 822.49 826.49 826.49 830.49 830.49 834.49 834.49 Bandwd= 4.000 4.000 4.000 4.000 4.000 4.000 4.000 4.000 The following pulse cal sets were used with this setup: Pulse cal detection set: 1 PCAL = OFF PCALXB1= S1 S2 S3 S4 S5 S6 S7 S8 PCALXB2= M1 M2 M3 M4 M5 M6 M7 M8 PCALFR1= 0 0 0 0 0 0 0 0 PCALFR2= 0 0 0 0 0 0 0 0 Track assignments are: track1= 2, 10, 18, 26, 3, 11, 19, 27 barrel=roll_off SOURCE LIST -- BF087 Observations of compact sources in M82 at 327MHz 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) * M82MID 09 53 23.416635 * 09 57 30.667000 09 58 01.513062 0.00 69 50 48.22047 * 69 36 30.70700 69 34 36.24968 0.00 From catalog imbedded in main SCHED input file. 16.388 scan hours, 691.785 baseline hours above horizon. J2005+7752 20 07 20.430184 * 20 05 30.998512 20 05 12.183576 0.96 * 2007+777 77 43 58.12306 * 77 52 43.24759 77 53 52.62182 0.40 J2005+77 /home/filehost/cwalker/sched/catalogs/sources.vlba VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.898 scan hours, 40.389 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) M82MID 114.3 2007+777 104.3 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