COVER INFORMATION Station: VLBA_KP (Code Kp ) Experiment: GD017 format, 18 cm, Arp 220, Phil Diamond, November 2003 Exp. Code: GD017B Schedule Version: 1.00 Processed by SCHED version: NRAO internal release of 4 October 2004 PI: Phil Diamond Address: MERLIN/VLBI National Facility Jodrell Bank, Macclesfield Cheshire, SK11 9DL England Phone: (+44) (0)1477 572625 EMAIL: pdiamond@jb.man.ac.uk Fax: (+44) (0)1477 571618 Phone during observation: (+44) (0)1477 572625 Observing mode: 256-8-2 Notes: Primary fringe finder 1613+341 Schedule for VLBA_KP (Code Kp ) Page 2 GD017 format, 18 cm, Arp 220, Phil Diamond, November 2003 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 7 Mar 2005 Day 66 --- Next scan frequencies: 1633.99 1633.99 1641.99 1641.99 1649.99 1649.99 1657.99 1657.99 Next BBC frequencies: 766.01 766.01 758.01 758.01 750.01 750.01 742.01 742.01 Next scan bandwidths: 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 05 53 00 ARP220 09 26 46 10.5 68.8 -6.1 -59.6 0 1 1 0 05 53 00 06 15 00 --- 09 48 50 14.9 71.3 -5.8 -61.2 1320 F 1 17600 06 17 00 ARP220 09 50 50 15.3 71.6 -5.7 -61.4 113 1 2 17600 06 17 00 06 39 00 --- 10 12 54 19.8 74.1 -5.4 -62.8 1320 R 1 0 06 41 00 ARP220 10 14 54 20.2 74.3 -5.3 -62.9 113 1 3 0 06 41 00 07 03 00 --- 10 36 58 24.7 76.7 -5.0 -64.2 1320 F 1 17600 07 10 00 1516+193 10 43 59 28.2 83.6 -4.6 -63.4 407 1 4 17600 07 10 00 07 13 00 --- 10 46 59 28.8 83.9 -4.5 -63.5 180 R 1 15200 07 13 00 ARP220 10 46 59 26.8 77.8 -4.8 -64.7 -10 1 4 15200 07 13 00 07 32 00 --- 11 06 02 30.8 79.9 -4.5 -65.6 1130 R 1 0 07 35 00 ARP220 11 09 03 31.4 80.2 -4.4 -65.7 173 1 5 0 07 35 00 07 57 00 --- 11 31 06 36.0 82.7 -4.1 -66.6 1320 F 1 17600 08 00 00 ARP220 11 34 07 36.6 83.0 -4.0 -66.7 173 1 6 17600 08 00 00 08 22 00 --- 11 56 11 41.3 85.6 -3.7 -67.3 1320 R 1 0 08 25 00 ARP220 11 59 11 41.9 85.9 -3.6 -67.3 173 1 7 0 08 25 00 08 47 00 --- 12 21 15 46.6 88.6 -3.2 -67.6 1320 F 1 17600 08 50 00 1516+193 12 24 15 49.4 97.1 -2.9 -63.3 168 1 8 17600 08 50 00 09 00 00 --- 12 34 17 51.5 98.8 -2.7 -62.8 600 R 1 9600 09 00 00 ARP220 12 34 17 49.4 90.3 -3.0 -67.7 -12 1 8 9600 09 00 00 09 12 00 --- 12 46 19 51.9 92.0 -2.8 -67.6 708 R 1 0 09 15 00 ARP220 12 49 19 52.6 92.4 -2.8 -67.6 173 1 9 0 09 15 00 09 37 00 --- 13 11 23 57.2 95.8 -2.4 -67.0 1320 F 1 17600 09 40 00 ARP220 13 14 23 57.9 96.3 -2.3 -66.8 173 1 10 17600 09 40 00 10 02 00 --- 13 36 27 62.5 100.4 -2.0 -65.5 1320 R 1 0 Schedule for VLBA_KP (Code Kp ) Page 3 GD017 format, 18 cm, Arp 220, Phil Diamond, November 2003 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 7 Mar 2005 Day 66 --- 10 05 00 1613+341 13 39 27 57.8 75.4 -2.6 -83.0 157 1 11 0 10 05 00 10 08 00 --- 13 42 28 58.4 75.5 -2.5 -83.3 180 F 1 2400 10 08 00 ARP220 13 42 28 63.7 101.7 -1.9 -64.9 -23 1 11 2400 10 08 00 10 27 00 --- 14 01 31 67.7 106.4 -1.6 -62.5 1117 F 1 17600 10 30 00 ARP220 14 04 32 68.3 107.3 -1.5 -62.0 173 1 12 17600 10 30 00 10 52 00 --- 14 26 35 72.6 114.9 -1.1 -57.0 1320 R 1 0 11 10 00 1613+341 14 44 38 71.2 77.1 -1.5 -90.6 1049 1 13 0 11 10 00 11 13 00 --- 14 47 39 71.8 77.1 -1.4 -91.0 180 F 1 2400 11 13 00 ARP220 14 47 39 76.5 125.9 -0.8 -48.5 -39 1 13 2400 11 13 00 11 32 00 --- 15 06 42 79.4 141.6 -0.5 -35.0 1101 F 1 17600 11 35 00 ARP220 15 09 42 79.8 144.8 -0.4 -32.2 172 1 14 17600 11 35 00 11 57 00 --- 15 31 46 81.5 174.7 -0.1 -4.9 1320 R 1 0 ----------- Tape Change ------------ 12 00 00 ARP220 15 34 46 81.5 179.4 0.0 -0.6 171 2 1 0 12 00 00 12 22 00 --- 15 56 50 80.3 210.8 0.4 28.3 1320 F 1 17600 12 25 00 ARP220 15 59 50 79.9 214.3 0.4 31.4 172 2 2 17600 12 25 00 12 47 00 --- 16 21 54 76.6 233.5 0.8 48.0 1320 R 1 0 12 50 00 1613+341 16 24 55 86.8 314.8 0.2 133.3 120 2 3 0 12 50 00 12 53 00 --- 16 27 55 86.3 308.2 0.2 126.3 180 F 1 2400 12 53 00 ARP220 16 27 55 75.6 237.2 0.9 51.1 -53 2 3 2400 12 53 00 13 12 00 --- 16 46 58 72.0 246.3 1.2 57.9 1087 F 1 17600 13 15 00 ARP220 16 49 59 71.4 247.5 1.2 58.7 173 2 4 17600 13 15 00 13 37 00 --- 17 12 02 67.0 254.4 1.6 63.0 1320 R 1 0 13 40 00 ARP220 17 15 03 66.4 255.2 1.7 63.4 173 2 5 0 13 40 00 14 02 00 --- 17 37 06 61.8 260.2 2.0 65.7 1320 F 1 17600 14 05 00 ARP220 17 40 07 61.2 260.8 2.1 65.9 173 2 6 17600 14 05 00 14 27 00 --- 18 02 10 56.6 264.7 2.4 67.1 1320 R 1 0 14 30 00 1613+341 18 05 11 66.6 283.1 1.9 87.7 154 2 7 0 14 30 00 14 36 00 --- 18 11 12 65.4 283.2 2.0 87.0 360 F 1 4800 Schedule for VLBA_KP (Code Kp ) Page 4 GD017 format, 18 cm, Arp 220, Phil Diamond, November 2003 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 7 Mar 2005 Day 66 --- 14 36 00 ARP220 18 11 12 54.6 266.1 2.6 67.4 -28 2 7 4800 14 36 00 14 52 00 --- 18 27 15 51.2 268.5 2.9 67.6 932 F 1 17600 14 55 00 ARP220 18 30 15 50.6 268.9 2.9 67.6 173 2 8 17600 14 55 00 15 17 00 --- 18 52 19 45.9 271.8 3.3 67.6 1320 R 1 0 15 30 00 ARP220 19 05 21 43.2 273.4 3.5 67.4 768 2 9 0 15 30 00 15 52 00 --- 19 27 24 38.5 276.0 3.9 66.9 1320 F 1 17600 16 05 00 1613+341 19 40 27 47.1 287.6 3.4 78.0 757 2 10 17600 16 05 00 16 08 00 --- 19 43 27 46.5 287.7 3.5 77.7 180 R 1 15200 16 08 00 ARP220 19 43 27 35.1 277.8 4.1 66.4 -29 2 10 15200 16 08 00 16 27 00 --- 20 02 30 31.1 279.9 4.5 65.7 1111 R 1 0 16 30 00 ARP220 20 05 31 30.5 280.2 4.5 65.6 173 2 11 0 16 30 00 16 52 00 --- 20 27 34 25.9 282.6 4.9 64.5 1320 F 1 17600 16 55 00 ARP220 20 30 35 25.3 283.0 4.9 64.3 173 2 12 17600 16 55 00 17 17 00 --- 20 52 38 20.8 285.4 5.3 63.1 1320 R 1 0 17 35 00 1613+341 21 10 41 29.2 294.2 4.9 69.3 1057 2 13 0 17 35 00 17 38 00 --- 21 13 42 28.7 294.4 5.0 69.0 180 F 1 2400 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: arp220.set Matches group v20cm_2 in /usr/local/vlbi_sched/catalogs/freq.dat FD filtered above 1760. SC filtered above 1740. Setup group: 7 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= 2400.00 2400.00 2400.00 2400.00 2400.00 2400.00 2400.00 2400.00 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 = A C A C A C A C VLBA FE= 20cm omit 20cm omit VLBA Synth= 15.4 2.4 15.4 The following frequency sets based on this setup were used. Frequency Set: 7 Setup file default. Used pcal sets: 1 LO sum= 1633.99 1633.99 1641.99 1641.99 1649.99 1649.99 1657.99 1657.99 BBC fr= 766.01 766.01 758.01 758.01 750.01 750.01 742.01 742.01 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_auto SOURCE LIST -- GD017 format, 18 cm, Arp 220, Phil Diamond, November 2003 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) * ARP220 15 32 46.880196 * 15 34 57.224670 15 35 11.038195 23 40 07.99276 * 23 30 11.56400 23 28 50.20626 From catalog imbedded in main SCHED input file. 14.333 scan hours, 933.144 baseline hours above horizon. * 1516+193 15 14 40.987286 * 15 16 56.797600 15 17 11.234204 19 43 10.96935 * 19 32 13.01900 19 30 46.99831 From catalog imbedded in main SCHED input file. 0.217 scan hours, 32.847 baseline hours above horizon. * 1613+341 16 11 47.914510 * 16 13 41.064500 16 13 52.969205 34 20 19.83496 * 34 12 47.91000 34 11 37.69314 From catalog imbedded in main SCHED input file. 0.900 scan hours, 40.750 baseline hours above horizon. * 3C286 13 28 49.657708 * 13 31 08.288000 13 31 23.761925 30 45 58.64136 * 30 30 32.96000 30 28 43.26779 From catalog imbedded in main SCHED input file. 0.000 scan hours, 0.000 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) ARP220 114.1 1516+193 118.6 1613+341 104.8 3C286 138.5 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