COVER INFORMATION Station: SHANGHAI (Code Sh ) Experiment: Phase-reference observations of NGC7469 Exp. Code: EA037B Schedule Version: 4.00 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 18cm (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 ---------------------------------------------------------------------------------------- --- Mon 12 Mar 2007 Day 71 --- Next scan frequencies: 1637.99 1637.99 1645.99 1645.99 1653.99 1653.99 1661.99 1661.99 Next BBC frequencies: 662.01 662.01 654.01 654.01 646.01 646.01 638.01 638.01 Next scan bandwidths: 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 07 30 00 J2310+1055 02 53 05 35.0 261.3 3.7 59.6 0 1 1 0 07 30 00 07 32 00 =2307+106 02 55 05 34.6 261.6 3.7 59.6 120 F 1 4 07 30 01 07 32 00 NGC7469 02 55 05 32.0 260.6 3.9 58.8 -6 1 1 4 07 32 00 07 36 00 --- 02 59 06 31.2 261.2 3.9 58.9 234 F 1 12 07 32 01 07 36 00 J2310+1055 02 59 06 33.7 262.2 3.8 59.8 -6 1 1 12 07 36 00 07 37 30 =2307+106 03 00 36 33.4 262.4 3.8 59.8 84 F 1 15 07 36 01 07 38 00 J2310+1055 03 01 06 33.3 262.5 3.8 59.9 28 1 1 15 07 38 00 07 39 00 =2307+106 03 02 07 33.1 262.6 3.9 59.9 60 F 1 16 07 38 01 07 39 00 NGC7469 03 02 07 30.5 261.6 4.0 59.0 -6 1 1 16 07 39 00 07 43 00 --- 03 06 07 29.7 262.2 4.0 59.2 234 F 1 24 07 39 01 07 43 00 J2310+1055 03 06 07 32.2 263.2 3.9 60.0 -6 1 1 24 07 43 00 07 44 30 =2307+106 03 07 37 31.9 263.5 3.9 60.1 84 F 1 27 07 43 01 07 45 00 J2310+1055 03 08 08 31.8 263.5 4.0 60.1 28 1 1 27 07 45 00 07 46 00 =2307+106 03 09 08 31.6 263.7 4.0 60.1 60 F 1 29 07 45 01 07 46 00 NGC7469 03 09 08 29.0 262.7 4.1 59.3 -6 1 1 29 07 46 00 07 50 00 --- 03 13 08 28.2 263.2 4.2 59.4 234 F 1 37 07 46 01 07 50 00 J2310+1055 03 13 08 30.7 264.2 4.0 60.2 -6 1 1 37 07 50 00 07 51 30 =2307+106 03 14 39 30.4 264.5 4.1 60.2 84 F 1 40 07 50 01 07 52 00 J2310+1055 03 15 09 30.3 264.5 4.1 60.3 28 1 1 40 07 52 00 07 53 00 =2307+106 03 16 09 30.1 264.7 4.1 60.3 60 F 1 42 07 52 01 07 53 00 NGC7469 03 16 09 27.5 263.7 4.2 59.5 -6 1 1 42 07 53 00 07 57 00 --- 03 20 09 26.7 264.2 4.3 59.6 234 F 1 49 07 53 01 07 57 00 J2310+1055 03 20 09 29.2 265.2 4.2 60.4 -6 1 1 49 07 57 00 07 58 30 =2307+106 03 21 40 28.9 265.4 4.2 60.4 84 F 1 52 07 57 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 ---------------------------------------------------------------------------------------- --- Mon 12 Mar 2007 Day 71 --- 07 59 00 J2310+1055 03 22 10 28.8 265.5 4.2 60.4 28 1 1 52 07 59 00 08 00 00 =2307+106 03 23 10 28.6 265.6 4.2 60.4 60 F 1 54 07 59 01 08 05 00 3C454.3 03 28 11 26.5 273.6 4.6 62.9 290 1 1 54 08 05 00 08 16 00 --- 03 39 13 24.1 275.0 4.7 62.7 660 F 1 75 08 05 01 08 21 00 3C48 03 44 13 63.3 282.9 2.1 85.8 233 1 1 75 08 21 00 08 32 00 --- 03 55 15 61.0 283.3 2.3 84.7 660 F 1 97 08 21 01 08 35 00 J2310+1055 03 58 16 21.1 270.3 4.8 60.7 111 1 1 97 08 35 00 08 37 00 =2307+106 04 00 16 20.7 270.6 4.8 60.7 120 F 1 101 08 35 01 08 37 00 NGC7469 04 00 16 18.1 269.6 4.9 60.1 -6 1 1 101 08 37 00 08 41 00 --- 04 04 17 17.3 270.1 5.0 60.1 234 F 1 108 08 37 01 08 41 00 J2310+1055 04 04 17 19.8 271.1 4.9 60.7 -6 1 1 108 08 41 00 08 43 00 =2307+106 04 06 17 19.4 271.3 4.9 60.7 114 F 1 112 08 41 01 08 43 00 NGC7469 04 06 17 16.8 270.4 5.0 60.1 -6 1 1 112 08 43 00 08 47 00 --- 04 10 18 16.0 270.9 5.1 60.1 234 F 1 120 08 43 01 08 47 40 J2310+1055 04 10 58 18.4 271.9 5.0 60.7 34 1 1 120 08 47 40 08 49 40 =2307+106 04 12 58 17.9 272.2 5.0 60.6 120 F 1 124 08 47 41 08 49 40 NGC7469 04 12 58 15.4 271.2 5.2 60.1 -6 1 1 124 08 49 40 08 53 40 --- 04 16 59 14.5 271.7 5.2 60.0 234 F 1 132 08 49 41 08 53 40 J2310+1055 04 16 59 17.1 272.7 5.1 60.6 -6 1 1 132 08 53 40 08 55 40 =2307+106 04 18 59 16.7 272.9 5.1 60.6 114 F 1 135 08 53 41 08 55 40 NGC7469 04 18 59 14.1 272.0 5.3 60.0 -6 1 1 135 08 55 40 08 59 40 --- 04 23 00 13.2 272.5 5.3 60.0 234 F 1 143 08 55 41 09 00 20 J2310+1055 04 23 40 15.7 273.5 5.2 60.5 34 1 1 143 09 00 20 09 02 20 =2307+106 04 25 40 15.2 273.8 5.2 60.5 120 F 1 147 09 00 21 09 02 20 NGC7469 04 25 40 12.7 272.9 5.4 60.0 -6 1 1 147 09 02 20 09 06 20 --- 04 29 41 11.8 273.4 5.4 59.9 234 F 1 155 09 02 21 09 06 20 J2310+1055 04 29 41 14.4 274.3 5.3 60.4 -6 1 1 155 09 06 20 09 08 20 =2307+106 04 31 41 13.9 274.5 5.3 60.4 114 F 1 159 09 06 21 09 08 20 NGC7469 04 31 41 11.4 273.6 5.5 59.9 -6 1 1 159 09 08 20 09 12 20 --- 04 35 42 10.5 274.1 5.5 59.8 234 F 1 166 09 08 21 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 ---------------------------------------------------------------------------------------- --- Mon 12 Mar 2007 Day 71 --- 09 13 00 J2310+1055 04 36 22 13.0 275.1 5.4 60.3 34 1 1 166 09 13 00 09 15 00 =2307+106 04 38 22 12.5 275.4 5.5 60.3 120 F 1 170 09 13 01 09 15 00 NGC7469 04 38 22 10.0 274.5 5.6 59.8 -6 1 1 170 09 15 00 09 19 00 --- 04 42 23 9.1 275.0 5.6 59.7 234 F 1 178 09 15 01 09 19 00 J2310+1055 04 42 23 11.7 275.9 5.5 60.2 -6 1 1 178 09 19 00 09 21 00 =2307+106 04 44 23 11.2 276.1 5.6 60.1 114 F 1 182 09 19 01 09 21 00 NGC7469 04 44 23 8.7 275.2 5.7 59.7 -6 1 1 182 09 21 00 09 25 00 --- 04 48 24 7.8 275.7 5.7 59.6 234 F 1 190 09 21 01 09 25 40 J2310+1055 04 49 04 10.2 276.7 5.6 60.0 34 1 1 190 09 25 40 09 27 40 =2307+106 04 51 04 9.8 276.9 5.7 60.0 120 F 1 194 09 25 41 09 27 40 NGC7469 04 51 04 7.3 276.1 5.8 59.5 -6 1 1 194 09 27 40 09 31 40 --- 04 55 05 6.4 276.6 5.9 59.4 234 F 1 201 09 27 41 09 31 40 J2310+1055 04 55 05 9.0 277.4 5.7 59.9 -6 1 1 201 09 31 40 09 33 40 =2307+106 04 57 05 8.5 277.7 5.8 59.8 114 F 1 205 09 31 41 09 33 40 NGC7469 04 57 05 6.0 276.8 5.9 59.4 -6 1 1 205 09 33 40 09 37 40 --- 05 01 06 5.1 277.3 6.0 59.3 234 F 1 213 09 33 41 09 38 20 J2310+1055 05 01 46 7.6 278.3 5.8 59.7 34 1 1 213 09 38 20 09 40 20 =2307+106 05 03 46 7.1 278.5 5.9 59.6 120 F 1 217 09 38 21 09 44 20 J2310+1055 05 07 47 6.3 279.0 5.9 59.5 237 1 1 217 09 44 20 09 46 20 =2307+106 05 09 47 5.9 279.3 6.0 59.4 120 F 1 221 09 44 21 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: ea037b.18cm Matches group sh18cm in /mnt/datos/antxon/sched-v6.05/catalogs/freq.dat Huang Xinyong 27Sept05 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= 2300.00 2300.00 2300.00 2300.00 2300.00 2300.00 2300.00 2300.00 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= L L L L L L L L 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= 1637.99 1637.99 1645.99 1645.99 1653.99 1653.99 1661.99 1661.99 BBC fr= 662.01 662.01 654.01 654.01 646.01 646.01 638.01 638.01 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= 10 10 10 10 6010 6010 6010 6010 PCALFR2= 10 10 10 10 6010 6010 6010 6010 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 36.261718 0.00 08 36 15.75160 * 08 52 25.94500 08 54 37.04011 0.00 From catalog imbedded in main SCHED input file. 3.333 scan hours, 135.035 baseline hours above horizon. J0137+3309 01 34 49.826430 * 01 37 41.299496 01 38 04.716995 0.90 0134+329 32 54 20.25964 * 33 09 35.13382 33 11 50.98736 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, 8.250 baseline hours above horizon. J2253+1608 22 51 29.519744 * 22 53 57.747943 22 54 17.855050 0.31 2251+158 15 52 54.34806 * 16 08 53.56089 16 11 02.57766 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 49.099613 0.37 2307+106 10 39 13.09644 * 10 55 30.69685 10 57 43.24822 0.47 /mnt/datos/antxon/sched-v6.05/catalogs/sources.vlba VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 1.767 scan hours, 73.108 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 13.8 3C48 47.7 3C454.3 21.3 J2310+1055 15.0 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