COVER INFORMATION Station: VLBA_FD (Code Fd ) 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_FD (Code Fd ) 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 16 42 16.5 16.1 -8.7 -43.2 0 1 1 0 03 24 14 03 54 09 --- 01 46 42 18.3 18.0 -8.2 -49.6 1795 F 1 0 03 24 37 03 58 44 2007+777 01 51 18 30.6 -14.1 5.8 86.3 245 1 1 0 03 58 44 04 12 42 --- 02 05 18 29.9 -14.0 6.0 82.9 838 F 1 0 03 59 07 04 14 41 M82MID 02 07 18 19.8 19.2 -7.8 -54.1 92 1 1 0 04 14 41 04 58 34 --- 02 51 18 23.0 21.3 -7.1 -63.6 2633 F 1 0 04 15 04 04 58 34 M82MID 02 51 18 23.0 21.3 -7.1 -63.6 -4 1 1 0 04 58 34 05 42 27 --- 03 35 18 26.6 22.9 -6.4 -73.3 2629 F 1 0 04 58 34 05 44 26 M82MID 03 37 18 26.8 22.9 -6.3 -73.7 114 1 1 0 05 44 26 06 28 19 --- 04 21 18 30.5 23.8 -5.6 -83.6 2633 F 1 0 05 44 49 06 28 19 M82MID 04 21 18 30.5 23.8 -5.6 -83.6 -4 1 1 0 06 28 19 07 12 12 --- 05 05 18 34.4 23.9 -4.9 -93.9 2629 F 1 0 06 28 19 07 14 12 M82MID 05 07 18 34.5 23.9 -4.8 -94.3 114 1 1 0 07 14 12 07 58 05 --- 05 51 18 38.3 23.0 -4.1 -105.1 2633 F 1 0 07 14 35 07 58 05 M82MID 05 51 18 38.3 23.0 -4.1 -105.1 -4 1 1 0 07 58 05 08 41 57 --- 06 35 18 41.9 21.3 -3.4 -116.6 2629 F 1 0 07 58 05 08 43 57 M82MID 06 37 18 42.1 21.2 -3.3 -117.1 114 1 1 0 08 43 57 09 27 50 --- 07 21 18 45.3 18.3 -2.6 -129.4 2633 F 1 0 08 44 20 09 27 50 M82MID 07 21 18 45.3 18.3 -2.6 -129.4 -4 1 1 0 09 27 50 10 11 43 --- 08 05 18 47.9 14.2 -1.9 -142.7 2629 F 1 0 09 27 50 10 13 42 M82MID 08 07 18 48.0 14.0 -1.8 -143.3 114 1 1 0 10 13 42 10 57 35 --- 08 51 18 49.9 9.0 -1.1 -157.4 2633 F 1 0 10 14 05 10 57 35 M82MID 08 51 18 49.9 9.0 -1.1 -157.4 -4 1 1 0 10 57 35 11 41 28 --- 09 35 18 50.9 3.1 -0.4 -172.2 2629 F 1 0 10 57 35 Schedule for VLBA_FD (Code Fd ) 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 39 54 19.5 5.1-10.4 -21.5 206 1 1 0 11 46 03 12 06 00 --- 09 59 54 19.9 6.1-10.1 -26.0 1197 F 1 0 11 46 26 12 10 35 M82MID 10 04 30 51.0 -0.9 0.1 177.8 207 1 1 0 12 10 35 12 34 31 --- 10 28 30 50.8 -4.2 0.5 169.6 1436 F 1 0 12 10 58 12 36 31 M82MID 10 30 30 50.8 -4.5 0.5 168.9 114 1 1 0 12 36 31 13 20 24 --- 11 14 30 49.6 -10.2 1.3 154.2 2633 F 1 0 12 36 54 13 20 24 M82MID 11 14 30 49.6 -10.2 1.3 154.2 -4 1 1 0 13 20 24 14 04 16 --- 11 58 30 47.5 -15.0 2.0 140.3 2629 F 1 0 13 20 24 14 06 16 M82MID 12 00 30 47.4 -15.2 2.0 139.7 114 1 1 0 14 06 16 14 50 09 --- 12 44 30 44.6 -19.0 2.8 126.6 2633 F 1 0 14 06 39 14 50 09 M82MID 12 44 30 44.6 -19.0 2.8 126.6 -4 1 1 0 14 50 09 15 34 02 --- 13 28 30 41.3 -21.7 3.5 114.5 2629 F 1 0 14 50 09 15 36 01 M82MID 13 30 30 41.1 -21.7 3.5 114.0 114 1 1 0 15 36 01 16 19 54 --- 14 14 30 37.5 -23.3 4.3 102.7 2633 F 1 0 15 36 24 16 19 54 M82MID 14 14 30 37.5 -23.3 4.3 102.7 -4 1 1 0 16 19 54 17 03 47 --- 14 58 30 33.7 -23.9 5.0 92.0 2629 F 1 0 16 19 54 17 05 47 M82MID 15 00 30 33.5 -23.9 5.0 91.5 114 1 1 0 17 05 47 17 49 39 --- 15 44 30 29.7 -23.6 5.8 81.4 2633 F 1 0 17 06 10 17 49 39 M82MID 15 44 30 29.7 -23.6 5.8 81.4 -4 1 1 0 17 49 39 18 33 32 --- 16 28 30 26.0 -22.6 6.5 71.5 2629 F 1 0 17 49 39 18 35 32 M82MID 16 30 30 25.8 -22.6 6.5 71.1 114 1 1 0 18 35 32 19 19 25 --- 17 14 30 22.3 -20.9 7.3 61.5 2633 F 1 0 18 35 55 19 19 25 M82MID 17 14 30 22.3 -20.9 7.3 61.5 -4 1 1 0 19 19 25 20 03 17 --- 17 58 30 19.1 -18.6 8.0 52.0 2629 F 1 0 19 19 25 20 07 53 2007+777 18 03 06 40.8 8.1 -2.0 -144.7 226 1 1 0 20 07 53 20 27 49 --- 18 23 06 41.4 6.9 -1.7 -150.4 1197 F 1 0 20 08 16 20 32 25 M82MID 18 27 42 17.2 -16.9 8.5 45.7 221 1 1 0 20 32 25 20 56 21 --- 18 51 42 15.7 -15.3 8.9 40.5 1436 F 1 0 20 32 48 Schedule for VLBA_FD (Code Fd ) 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 51 42 15.7 -15.3 8.9 40.5 -4 1 1 0 20 56 21 21 24 16 --- 19 19 42 14.2 -13.3 9.4 34.4 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: 2 Station: VLBA_FD 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: 2 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