COVER INFORMATION Station: SHANGHAI (Code Sh ) Experiment: Phase-reference observations of NGC7469 Exp. Code: EA037A Schedule Version: 1.00 Processed by SCHED version: 6.05 June 2006 PI: A. Alberdi Address: Instituto de Astrofisica de Andalucia (IAA, CSIC) P.O. Box 3004 18080 - Granada Spain Phone: +34 958 230530 EMAIL: antxon@iaa.es Fax: +34 958 814530 Phone during observation: +34 680 171947 Observing mode: Phase-referencing of NGC 7469 at 6cm (256 Mb/s) Notes: Reference source: J2310+1055, at a radial distance of 2.7 deg Schedule for SHANGHAI (Code Sh ) Page 2 Phase-reference observations of NGC7469 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. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) SYNC ---------------------------------------------------------------------------------------- --- Fri 2 Mar 2007 Day 61 --- Next scan frequencies: 4974.49 4974.49 4982.49 4982.49 4990.49 4990.49 4998.49 4998.49 Next BBC frequencies: 774.49 774.49 782.49 782.49 790.49 790.49 798.49 798.49 Next scan bandwidths: 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 08 30 00 J2310+1055 03 13 49 30.6 264.3 4.1 60.2 0 1 1 0 08 30 00 08 32 00 =2307+106 03 15 50 30.2 264.6 4.1 60.3 120 F 1 4 08 30 01 08 32 00 NGC7469 03 15 50 27.6 263.6 4.2 59.5 -6 1 1 4 08 32 00 08 35 00 --- 03 18 50 27.0 264.0 4.3 59.5 174 F 1 10 08 32 01 08 35 00 J2310+1055 03 18 50 29.5 265.0 4.1 60.3 -6 1 1 10 08 35 00 08 37 00 =2307+106 03 20 51 29.1 265.3 4.2 60.4 114 F 1 14 08 35 01 08 37 00 NGC7469 03 20 51 26.5 264.3 4.3 59.6 -6 1 1 14 08 37 00 08 40 00 --- 03 23 51 25.9 264.7 4.3 59.7 174 F 1 19 08 37 01 08 40 00 J2310+1055 03 23 51 28.5 265.7 4.2 60.4 -6 1 1 19 08 40 00 08 42 00 =2307+106 03 25 51 28.0 266.0 4.3 60.5 114 F 1 23 08 40 01 08 42 00 NGC7469 03 25 51 25.5 265.0 4.4 59.7 -6 1 1 23 08 42 00 08 45 00 --- 03 28 52 24.8 265.4 4.4 59.8 174 F 1 29 08 42 01 08 45 00 J2310+1055 03 28 52 27.4 266.4 4.3 60.5 -6 1 1 29 08 45 00 08 47 00 =2307+106 03 30 52 27.0 266.7 4.3 60.5 114 F 1 33 08 45 01 08 47 00 NGC7469 03 30 52 24.4 265.7 4.5 59.8 -6 1 1 33 08 47 00 08 50 00 --- 03 33 53 23.8 266.1 4.5 59.9 174 F 1 39 08 47 01 08 50 00 J2310+1055 03 33 53 26.3 267.1 4.4 60.6 -6 1 1 39 08 50 00 08 52 00 =2307+106 03 35 53 25.9 267.4 4.4 60.6 114 F 1 43 08 50 01 08 57 00 3C454.3 03 40 54 23.8 275.2 4.8 62.6 290 1 1 43 08 57 00 09 08 00 --- 03 51 56 21.4 276.5 5.0 62.4 660 F 1 64 08 57 01 09 14 00 3C48 03 57 57 60.5 283.4 2.3 84.4 293 1 1 64 09 14 00 09 25 00 --- 04 08 58 58.2 283.9 2.5 83.3 660 F 1 85 09 14 01 09 27 00 J2310+1055 04 10 59 18.4 271.9 5.0 60.7 52 1 1 85 09 27 00 09 29 00 =2307+106 04 12 59 17.9 272.2 5.0 60.6 120 F 1 89 09 27 01 Schedule for SHANGHAI (Code Sh ) Page 3 Phase-reference observations of NGC7469 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. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) SYNC ---------------------------------------------------------------------------------------- --- Fri 2 Mar 2007 Day 61 --- 09 29 00 NGC7469 04 12 59 15.4 271.2 5.2 60.1 -6 1 1 89 09 29 00 09 32 00 --- 04 16 00 14.7 271.6 5.2 60.0 174 F 1 95 09 29 01 09 32 00 J2310+1055 04 16 00 17.3 272.6 5.1 60.6 -6 1 1 95 09 32 00 09 34 00 =2307+106 04 18 00 16.9 272.8 5.1 60.6 114 F 1 99 09 32 01 09 34 00 NGC7469 04 18 00 14.3 271.9 5.2 60.0 -6 1 1 99 09 34 00 09 37 00 --- 04 21 00 13.7 272.3 5.3 60.0 174 F 1 105 09 34 01 09 37 00 J2310+1055 04 21 00 16.2 273.2 5.2 60.6 -6 1 1 105 09 37 00 09 39 00 =2307+106 04 23 01 15.8 273.4 5.2 60.5 114 F 1 108 09 37 01 09 39 00 NGC7469 04 23 01 13.2 272.5 5.3 60.0 -6 1 1 108 09 39 00 09 42 00 --- 04 26 01 12.6 272.9 5.4 60.0 174 F 1 114 09 39 01 09 42 00 J2310+1055 04 26 01 15.2 273.8 5.3 60.5 -6 1 1 114 09 42 00 09 44 00 =2307+106 04 28 02 14.7 274.1 5.3 60.5 114 F 1 118 09 42 01 09 44 00 NGC7469 04 28 02 12.2 273.2 5.4 59.9 -6 1 1 118 09 44 00 09 47 00 --- 04 31 02 11.5 273.5 5.5 59.9 174 F 1 124 09 44 01 09 47 00 J2310+1055 04 31 02 14.1 274.4 5.3 60.4 -6 1 1 124 09 47 00 09 49 00 =2307+106 04 33 02 13.7 274.7 5.4 60.4 114 F 1 128 09 47 01 09 51 00 J2310+1055 04 35 03 13.2 275.0 5.4 60.3 117 1 1 128 09 51 00 09 53 00 =2307+106 04 37 03 12.8 275.2 5.4 60.3 120 F 1 132 09 51 01 09 53 00 NGC7469 04 37 03 10.2 274.3 5.6 59.8 -6 1 1 132 09 53 00 09 56 00 --- 04 40 03 9.6 274.7 5.6 59.8 174 F 1 137 09 53 01 09 56 00 J2310+1055 04 40 03 12.2 275.6 5.5 60.2 -6 1 1 137 09 56 00 09 58 00 =2307+106 04 42 04 11.7 275.8 5.5 60.2 114 F 1 141 09 56 01 09 58 00 NGC7469 04 42 04 9.2 274.9 5.6 59.7 -6 1 1 141 09 58 00 10 01 00 --- 04 45 04 8.5 275.3 5.7 59.7 174 F 1 147 09 58 01 10 01 00 J2310+1055 04 45 04 11.1 276.2 5.6 60.1 -6 1 1 147 10 01 00 10 03 00 =2307+106 04 47 05 10.7 276.5 5.6 60.1 114 F 1 151 10 01 01 10 03 00 NGC7469 04 47 05 8.1 275.6 5.7 59.6 -6 1 1 151 10 03 00 10 06 00 --- 04 50 05 7.5 275.9 5.8 59.6 174 F 1 157 10 03 01 10 06 00 J2310+1055 04 50 05 10.0 276.8 5.7 60.0 -6 1 1 157 10 06 00 10 08 00 =2307+106 04 52 05 9.6 277.1 5.7 59.9 114 F 1 161 10 06 01 Schedule for SHANGHAI (Code Sh ) Page 4 Phase-reference observations of NGC7469 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. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) SYNC ---------------------------------------------------------------------------------------- --- Fri 2 Mar 2007 Day 61 --- 10 08 00 NGC7469 04 52 05 7.0 276.2 5.8 59.5 -6 1 1 161 10 08 00 10 11 00 --- 04 55 06 6.4 276.6 5.9 59.4 174 F 1 166 10 08 01 10 11 00 J2310+1055 04 55 06 9.0 277.5 5.7 59.9 -6 1 1 166 10 11 00 10 13 00 =2307+106 04 57 06 8.5 277.7 5.8 59.8 114 F 1 170 10 11 01 10 15 00 J2310+1055 04 59 07 8.1 278.0 5.8 59.7 117 1 1 170 10 15 00 10 17 00 =2307+106 05 01 07 7.7 278.2 5.8 59.7 120 F 1 174 10 15 01 10 17 00 NGC7469 05 01 07 5.1 277.3 6.0 59.3 -6 1 1 174 10 17 00 10 20 00 --- 05 04 07 4.5 277.7 6.0 D 59.2 0 F 1 180 10 17 01 10 20 00 J2310+1055 05 04 07 7.1 278.6 5.9 59.6 -5 1 1 180 10 20 00 10 22 00 =2307+106 05 06 08 6.6 278.8 5.9 59.5 115 F 1 184 10 20 01 10 25 00 J2310+1055 05 09 08 6.0 279.2 6.0 59.4 177 1 1 184 10 25 00 10 27 00 =2307+106 05 11 09 5.6 279.5 6.0 59.4 120 F 1 188 10 25 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: ea037a.6cm Matches group sh6cm in /mnt/datos/antxon/sched-v6.05/catalogs/freq.dat Dual-pol available since summer 2005 (CR 051122). Setup group: 9 Station: SHANGHAI Total bit rate: 256 Format: MKIV1:2 Bits per sample: 2 Sample rate: 16.000 Number of channels: 8 Speedup factor: 1.00 Disk used to record data. 1st LO= 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 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 = C A C A C A C A The following frequency sets based on this setup were used. Frequency Set: 9 Setup file default. Used pcal sets: 1 LO sum= 4974.49 4974.49 4982.49 4982.49 4990.49 4990.49 4998.49 4998.49 BBC fr= 774.49 774.49 782.49 782.49 790.49 790.49 798.49 798.49 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_off SOURCE LIST -- Phase-reference observations of NGC7469 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) * NGC7469 23 00 44.413178 * 23 03 15.617200 23 03 36.214986 0.00 08 36 15.75160 * 08 52 25.94500 08 54 37.63257 0.00 From catalog imbedded in main SCHED input file. 2.700 scan hours, 102.539 baseline hours above horizon. J0137+3309 01 34 49.826430 * 01 37 41.299496 01 38 04.837017 0.90 0134+329 32 54 20.25964 * 33 09 35.13382 33 11 52.58912 0.91 * 3C48 /mnt/datos/antxon/sched-v6.05/catalogs/sources.vlba J0137+33 VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 0.183 scan hours, 10.083 baseline hours above horizon. J2253+1608 22 51 29.519744 * 22 53 57.747943 22 54 17.797646 0.31 2251+158 15 52 54.34806 * 16 08 53.56089 16 11 03.59875 0.20 * 3C454.3 /mnt/datos/antxon/sched-v6.05/catalogs/sources.vlba J2253+16 VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 0.183 scan hours, 10.083 baseline hours above horizon. * J2310+1055 23 07 57.541049 * 23 10 28.517751 23 10 49.059932 0.37 2307+106 10 39 13.09644 * 10 55 30.69685 10 57 43.96026 0.47 /mnt/datos/antxon/sched-v6.05/catalogs/sources.vlba VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 2.267 scan hours, 84.932 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) NGC7469 16.4 3C48 56.5 3C454.3 23.4 J2310+1055 18.8 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