COVER INFORMATION Station: EB_VLBA (Code Eb ) 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 EB_VLBA (Code Eb ) 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). ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Tapes TPStart Stop UT LST EL AZ HA UP ParA Dwell (see above) ---------------------------------------------------------------------------------------- --- Sun 6 Mar 2005 Day 65 --- Next scan frequencies: 1633.99 1633.99 1641.99 1641.99 1649.99 1649.99 1657.99 1657.99 Next BBC frequencies: 543.99 543.99 551.99 551.99 559.99 559.99 567.99 567.99 Next scan bandwidths: 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 21 00 00 1613+341 08 26 18 11.3 48.8 -7.8 H -35.3 0 1 1 0 21 00 00 21 06 00 --- 08 32 19 12.0 49.8 -7.7 H -36.0 0 F 1 4800 21 06 00 ARP220 08 32 19 8.6 63.2 -7.0 D -38.2 -66 1 1 4800 21 06 00 21 22 00 --- 08 48 21 10.9 66.2 -6.8 H -39.3 0 F 1 17600 21 35 00 ARP220 09 01 23 12.8 68.5 -6.6 H -40.2 749 1 2 17600 21 35 00 21 57 00 --- 09 23 27 16.1 72.5 -6.2 -41.4 0 R 1 0 22 10 00 ARP220 09 36 29 18.1 74.8 -6.0 -42.0 749 1 3 0 22 10 00 22 32 00 --- 09 58 33 21.5 78.8 -5.6 -42.8 1320 F 1 17600 22 45 00 ARP220 10 11 35 23.6 81.1 -5.4 -43.2 749 1 4 17600 22 45 00 23 07 00 --- 10 33 38 27.0 85.2 -5.0 -43.7 1320 R 1 0 23 20 00 1613+341 10 46 41 30.6 72.0 -5.5 -47.0 715 1 5 0 23 20 00 23 26 00 --- 10 52 42 31.5 73.0 -5.4 -47.3 360 F 1 4800 23 26 00 ARP220 10 52 42 30.1 88.8 -4.7 -43.9 -73 1 5 4800 23 26 00 23 42 00 --- 11 08 44 32.6 91.9 -4.4 -43.8 887 F 1 17600 --- Mon 7 Mar 2005 Day 66 --- 00 01 00 ARP220 11 27 47 35.6 95.7 -4.1 -43.6 1103 1 6 17600 00 01 00 00 23 00 --- 11 49 51 39.1 100.3 -3.8 -43.0 1320 R 1 0 00 30 00 ARP220 11 56 52 40.2 101.9 -3.6 -42.7 393 1 7 0 00 30 00 00 52 00 --- 12 18 56 43.6 106.9 -3.3 -41.5 1320 F 1 17600 01 05 00 ARP220 12 31 58 45.6 110.1 -3.1 -40.6 746 1 8 17600 01 05 00 01 27 00 --- 12 54 01 48.8 115.8 -2.7 -38.6 1320 R 1 0 01 40 00 1613+341 13 07 04 52.6 97.6 -3.1 -49.6 700 1 9 0 01 40 00 01 46 00 --- 13 13 05 53.5 99.0 -3.0 -49.4 360 F 1 4800 Schedule for EB_VLBA (Code Eb ) 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). ---------------------------------------------------------------------------------------- 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 --- 01 46 00 ARP220 13 13 05 51.5 121.2 -2.4 -36.4 -92 1 9 4800 01 46 00 02 02 00 --- 13 29 07 53.6 126.1 -2.1 -34.0 868 F 1 17600 02 15 00 ARP220 13 42 09 55.2 130.5 -1.9 -31.8 742 1 10 17600 02 15 00 02 37 00 --- 14 04 13 57.7 138.4 -1.5 -27.4 1320 R 1 0 02 45 00 ARP220 14 12 14 58.5 141.5 -1.4 -25.5 446 1 11 0 02 45 00 03 07 00 --- 14 34 18 60.5 150.7 -1.0 -19.8 1320 F 1 17600 03 15 00 ARP220 14 42 19 61.1 154.3 -0.9 -17.5 444 1 12 17600 03 15 00 03 37 00 --- 15 04 23 62.3 164.7 -0.5 -10.6 1320 R 1 0 03 45 00 1613+341 15 12 24 70.2 139.7 -1.0 -29.8 379 1 13 0 03 45 00 03 51 00 --- 15 18 25 70.8 142.9 -0.9 -27.6 360 F 1 4800 03 51 00 ARP220 15 18 25 62.8 171.6 -0.3 -5.8 -112 1 13 4800 03 51 00 04 07 00 --- 15 34 28 63.0 179.6 0.0 -0.3 848 F 1 17600 04 15 00 ARP220 15 42 29 62.9 183.7 0.1 2.5 443 1 14 17600 04 15 00 04 37 00 --- 16 04 33 62.4 194.6 0.5 10.1 1320 R 1 0 ----------- Tape Change ------------ 05 00 00 1613+341 16 27 36 73.5 190.0 0.2 7.7 1314 1 1 0 05 00 00 05 06 00 --- 16 33 37 73.3 194.3 0.3 11.0 360 F 1 4800 05 06 00 ARP220 16 33 37 60.7 208.2 1.0 19.1 -72 1 1 4800 05 06 00 05 22 00 --- 16 49 40 59.3 215.0 1.2 23.5 888 F 1 17600 05 30 00 1613+341 16 57 41 71.8 210.2 0.7 22.8 409 1 2 17600 05 30 00 05 33 00 --- 17 00 42 71.6 212.1 0.8 24.1 180 R 1 15200 05 33 00 ARP220 17 00 42 58.3 219.5 1.4 26.1 -75 1 2 15200 05 33 00 05 52 00 --- 17 19 45 56.2 226.6 1.7 30.2 1065 R 1 0 05 53 00 ARP220 17 20 45 56.1 226.9 1.8 30.4 43 1 3 0 05 53 00 06 15 00 --- 17 42 49 53.4 234.3 2.1 34.3 1320 F 1 17600 06 17 00 ARP220 17 44 49 53.1 235.0 2.2 34.6 100 1 4 17600 06 17 00 06 39 00 --- 18 06 53 50.1 241.6 2.5 37.6 1320 R 1 0 06 41 00 ARP220 18 08 53 49.9 242.1 2.6 37.8 100 1 5 0 06 41 00 07 03 00 --- 18 30 57 46.7 248.1 2.9 40.0 1320 F 1 17600 Schedule for EB_VLBA (Code Eb ) 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). ---------------------------------------------------------------------------------------- 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 --- 07 10 00 1516+193 18 37 58 39.9 250.7 3.3 39.5 371 1 6 17600 07 10 00 07 13 00 --- 18 40 58 39.4 251.4 3.4 39.7 180 R 1 15200 07 13 00 ARP220 18 40 58 45.2 250.6 3.1 40.8 -44 1 6 15200 07 13 00 07 32 00 --- 19 00 01 42.3 255.1 3.4 42.1 1096 R 1 0 07 35 00 ARP220 19 03 02 41.8 255.8 3.5 42.2 159 1 7 0 07 35 00 07 57 00 --- 19 25 05 38.4 260.6 3.8 43.2 1320 F 1 17600 08 00 00 ARP220 19 28 06 37.9 261.3 3.9 43.2 160 1 8 17600 08 00 00 08 22 00 --- 19 50 10 34.4 265.8 4.2 43.7 1320 R 1 0 08 25 00 ARP220 19 53 10 34.0 266.4 4.3 43.8 160 1 9 0 08 25 00 08 47 00 --- 20 15 14 30.5 270.8 4.7 43.9 1320 F 1 17600 08 50 00 1516+193 20 18 14 24.2 271.7 5.0 42.4 134 1 10 17600 08 50 00 09 00 00 --- 20 28 16 22.6 273.6 5.2 42.3 600 R 1 9600 09 00 00 ARP220 20 28 16 28.4 273.2 4.9 43.8 -45 1 10 9600 09 00 00 09 12 00 --- 20 40 18 26.5 275.5 5.1 43.6 675 R 1 0 09 15 00 ARP220 20 43 18 26.0 276.0 5.1 43.6 160 1 11 0 09 15 00 09 37 00 --- 21 05 22 22.5 280.1 5.5 43.0 1320 F 1 17600 09 40 00 ARP220 21 08 22 22.1 280.6 5.6 42.9 161 1 12 17600 09 40 00 10 02 00 --- 21 30 26 18.6 284.6 5.9 42.1 1320 R 1 0 10 05 00 1613+341 21 33 26 31.7 286.8 5.3 47.4 106 1 13 0 10 05 00 10 08 00 --- 21 36 27 31.3 287.3 5.4 47.2 180 F 1 2400 10 08 00 ARP220 21 36 27 17.7 285.7 6.0 41.9 -76 1 13 2400 10 08 00 10 27 00 --- 21 55 30 14.8 289.1 6.3 40.9 1064 F 1 17600 10 30 00 ARP220 21 58 31 14.4 289.6 6.4 40.8 161 1 14 17600 10 30 00 10 52 00 --- 22 20 34 11.1 293.6 6.8 H 39.4 0 R 1 0 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 eb_1640 in /usr/local/vlbi_sched/catalogs/freq.dat Prime focus receiver. Setup group: 1 Station: EB_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= 1090.00 1090.00 1090.00 1090.00 1090.00 1090.00 1090.00 1090.00 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 The following frequency sets based on this setup were used. Frequency Set: 1 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= 543.99 543.99 551.99 551.99 559.99 559.99 567.99 567.99 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