COVER INFORMATION Station: ARECIBO (Code Ar ) Experiment: GD018 Exp. Code: GD018 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: Phase-referencing of a source at 21cm (256 Mb/s) Notes: P Schedule for ARECIBO (Code Ar ) Page 2 GD018 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) ---------------------------------------------------------------------------------------- --- Fri 4 Mar 2005 Day 63 --- Next scan frequencies: 1400.10 1400.10 1408.10 1408.10 1416.10 1416.10 1424.10 1424.10 Next BBC frequencies: 764.90 764.90 756.90 756.90 748.90 748.90 740.90 740.90 Next scan bandwidths: 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 19 09 00 0234+285 01 32 33 71.7 52.0 -1.1 -121.4 0 1 1 0 19 09 00 19 20 00 --- 01 43 35 73.7 47.4 -0.9 -127.1 660 F 1 8800 19 21 00 IRAS02524 01 44 35 73.1 78.0 -1.2 -96.0 -25 1 1 8800 19 21 00 19 28 00 --- 01 51 37 74.7 77.3 -1.1 -97.2 395 F 1 14400 19 28 00 J0257+1847 01 51 37 74.3 85.7 -1.1 -89.0 -31 1 1 14400 19 28 00 19 32 00 =0254+185 01 55 37 75.2 85.7 -1.0 -89.3 209 F 1 17600 19 33 00 IRAS02524 01 56 37 75.9 76.7 -1.0 -98.3 27 1 2 17600 19 33 00 19 40 00 --- 02 03 39 77.5 75.6 -0.9 -100.0 420 R 1 12000 19 40 00 J0257+1847 02 03 39 77.1 85.8 -0.9 -89.9 -36 1 2 12000 19 40 00 19 44 00 =0254+185 02 07 39 78.1 85.8 -0.8 -90.2 204 R 1 8800 19 45 00 IRAS02524 02 08 39 78.6 74.5 -0.8 -101.5 22 1 2 8800 19 45 00 19 52 00 --- 02 15 41 80.2 72.5 -0.7 -104.1 420 R 1 3200 19 52 00 J0257+1847 02 15 41 80.0 85.7 -0.7 -90.9 -43 1 2 3200 19 52 00 19 56 00 =0254+185 02 19 41 80.9 85.6 -0.6 -91.4 197 R 1 0 19 58 00 0234+285 02 21 42 78.9 19.0 -0.3 -159.3 -51 1 3 0 19 58 00 20 09 00 --- 02 32 43 79.4 6.5 -0.1 -172.9 609 F 1 8800 20 10 00 IRAS02524 02 33 43 84.2 61.7 -0.4 -116.4 -84 1 3 8800 20 10 00 20 17 00 --- 02 40 45 85.6 52.1 -0.2 -126.7 336 F 1 14400 20 17 00 J0257+1847 02 40 45 85.9 82.9 -0.3 -95.7 -85 1 3 14400 20 17 00 20 21 00 =0254+185 02 44 45 86.8 81.1 -0.2 -97.8 155 F 1 17600 20 22 00 IRAS02524 02 45 45 86.5 40.5 -0.2 -138.6 -49 1 4 17600 20 22 00 20 29 00 --- 02 52 47 87.3 13.7 0.0 -166.0 371 R 1 12000 20 29 00 J0257+1847 02 52 47 88.7 69.4 -0.1 -110.1 -145 1 4 12000 20 29 00 20 33 00 =0254+185 02 56 47 89.5 32.5 0.0 D -147.4 0 R 1 8800 Schedule for ARECIBO (Code Ar ) Page 3 GD018 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) ---------------------------------------------------------------------------------------- --- Fri 4 Mar 2005 Day 63 --- 20 34 00 IRAS02524 02 57 47 87.3 348.9 0.0 168.7 -711 1 4 8800 20 34 00 20 41 00 --- 03 04 49 86.6 321.1 0.2 140.3 -291 R 1 3200 20 41 00 J0257+1847 03 04 49 88.3 286.3 0.1 105.8 -95 1 4 3200 20 41 00 20 45 00 =0254+185 03 08 49 87.4 280.7 0.2 99.8 145 R 1 0 20 47 00 0234+285 03 10 50 77.1 326.0 0.5 142.7 -135 1 5 0 20 47 00 20 58 00 --- 03 21 51 75.5 318.4 0.7 134.0 525 F 1 8800 20 59 00 IRAS02524 03 22 52 83.0 293.6 0.5 111.3 -129 1 5 8800 20 59 00 21 06 00 --- 03 29 53 81.5 289.6 0.6 106.7 291 F 1 14400 21 06 00 J0257+1847 03 29 53 82.4 274.8 0.5 92.2 -47 1 5 14400 21 06 00 21 10 00 =0254+185 03 33 53 81.5 274.5 0.6 91.7 193 F 1 17600 21 11 00 IRAS02524 03 34 54 80.4 287.6 0.7 104.3 17 1 6 17600 21 11 00 21 18 00 --- 03 41 55 78.8 285.6 0.8 101.7 420 R 1 12000 21 18 00 J0257+1847 03 41 55 79.6 274.3 0.7 90.8 -38 1 6 12000 21 18 00 21 22 00 =0254+185 03 45 55 78.6 274.2 0.8 90.4 202 R 1 8800 21 23 00 IRAS02524 03 46 55 77.6 284.5 0.9 100.2 24 1 6 8800 21 23 00 21 30 00 --- 03 53 57 76.0 283.4 1.0 98.4 420 R 1 3200 21 30 00 J0257+1847 03 53 57 76.7 274.2 0.9 89.8 -33 1 6 3200 21 30 00 21 34 00 =0254+185 03 57 57 75.8 274.3 1.0 89.5 207 R 1 0 21 36 00 0234+285 03 59 58 68.6 303.1 1.4 D 114.8 -21 1 7 0 21 36 00 21 47 00 --- 04 10 59 66.4 300.6 1.5 D 111.2 0 F 1 8800 21 48 00 IRAS02524 04 12 00 71.8 281.6 1.3 95.1 3 1 7 8800 21 48 00 21 55 00 --- 04 19 01 70.2 281.2 1.4 D 94.1 0 F 1 14400 21 55 00 J0257+1847 04 19 01 70.8 274.6 1.3 88.1 -27 1 7 14400 21 55 00 21 59 00 =0254+185 04 23 01 69.9 274.7 1.4 D 87.9 0 F 1 17600 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: gd018.set Matches group arlbw6 in /usr/local/vlbi_sched/catalogs/freq.dat RX=LBW, with lfbf=6, TG 07-Oct-01 Setup group: 10 Station: ARECIBO Total bit rate: 256 Format: MKIV1:2 Bits per sample: 2 Sample rate: 16.000 Number of channels: 8 Passes/head pos: 1 Speedup factor: 1.00 Tape speeds: Low density - 270.000 ips, High density - 160.00 ips Time per pass for 17600 ft, High density tapes is: 00:22:00 1st LO= 2165.00 2165.00 2165.00 2165.00 2165.00 2165.00 2165.00 2165.00 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 The following frequency sets based on this setup were used. Frequency Set: 11 Setup file default. Used pcal sets: 1 LO sum= 1400.10 1400.10 1408.10 1408.10 1416.10 1416.10 1424.10 1424.10 BBC fr= 764.90 764.90 756.90 756.90 748.90 748.90 740.90 740.90 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 = 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 -- GD018 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) * IRAS02524 02 52 25.818883 * 02 55 17.104000 02 55 33.612154 20 46 49.93596 * 20 58 57.21000 21 00 14.83367 From catalog imbedded in main SCHED input file. 5.133 scan hours, 159.208 baseline hours above horizon. * 0234+285 02 34 55.589614 * 02 37 52.405700 02 38 09.257920 28 35 11.40675 * 28 48 08.98900 28 49 33.42288 From catalog imbedded in main SCHED input file. 3.117 scan hours, 103.342 baseline hours above horizon. * 3C84 03 16 29.567669 * 03 19 48.160500 03 20 07.287714 41 19 51.91590 * 41 30 42.10300 41 31 59.62536 From catalog imbedded in main SCHED input file. 0.183 scan hours, 3.850 baseline hours above horizon. * 3C286 13 28 49.657708 * 13 31 08.288000 13 31 23.683592 30 45 58.64136 * 30 30 32.96000 30 28 43.24878 From catalog imbedded in main SCHED input file. 0.000 scan hours, 0.000 baseline hours above horizon. * J0257+1847 02 54 56.156729 * 02 57 45.628773 02 58 01.993214 0254+185 18 35 05.60480 * 18 47 05.35615 18 48 21.60433 /usr/local/vlbi_sched/catalogs/sources.vlba VLBA Calib. Survey - ICRF Frame - reduced by GSFC group - Aug 2001 2.933 scan hours, 80.627 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) IRAS02524 63.5 0234+285 62.7 3C84 75.7 3C286 137.3 J0257+1847 63.3 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