COVER INFORMATION Station: VLBA_OV (Code Ov ) Experiment: VLBI monitoring of CSOs Exp. Code: BS135A Schedule Version: 1.00 Processed by SCHED version: Release of 18 Sept. 2003 PI: Carlo Stanghellini Address: IRA, CNR, Bologna Via Gobetti, 101 I-40129 Bologna Italy Phone: +39 051 639 9370 EMAIL: cstan@ira.cnr.it Fax: +39 051 639 9431 Phone during observation: +39 051 639 9370 Observing mode: Continuum Notes: Schedule for VLBA_OV (Code Ov ) Page 2 VLBI monitoring of CSOs 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) ---------------------------------------------------------------------------------------- --- Sun 25 Jan 2004 Day 25 --- Next scan frequencies: 8405.49 8413.49 8421.49 8429.49 Next BBC frequencies: 805.49 813.49 821.49 829.49 Next scan bandwidths: 8.00 8.00 8.00 8.00 03 57 13 DA193 04 19 22 71.0 74.7 -1.6 -90.1 0 1 1 0 03 57 13 03 59 42 --- 04 21 52 71.5 74.7 -1.6 -90.5 150 F 1 997 04 01 42 B0703+468 04 23 52 58.6 59.2 -2.7 -92.8 88 1 1 997 04 01 42 04 43 05 --- 05 05 22 65.6 57.2 -2.0 -102.1 2483 F 1 17552 04 43 05 B0703+468 05 05 22 65.6 57.2 -2.0 -102.1 -4 1 2 17552 04 43 05 05 26 58 --- 05 49 22 72.8 50.2 -1.3 -116.7 2629 R 1 0 05 26 58 B0703+468 05 49 22 72.8 50.2 -1.3 -116.7 -4 1 3 0 05 26 58 06 10 51 --- 06 33 22 78.6 30.5 -0.6 -143.8 2629 F 1 17552 06 10 51 DA193 06 33 22 82.2 -67.7 0.6 106.4 -71 1 4 17552 06 10 51 06 13 20 --- 06 35 52 81.8 -68.7 0.7 105.1 78 R 1 16555 06 15 20 B0703+468 06 37 52 79.0 27.2 -0.5 -147.9 50 1 4 16555 06 15 20 06 56 43 --- 07 19 22 80.2 -12.4 0.2 165.6 2483 R 1 0 06 56 43 B0703+468 07 19 22 80.2 -12.4 0.2 165.6 -4 1 5 0 06 56 43 07 40 36 --- 08 03 22 75.9 -43.0 0.9 127.6 2629 F 1 17552 07 40 36 J1335+5844 08 03 22 34.5 38.8 -5.5 -73.6 -89 1 6 17552 07 40 36 08 24 29 --- 08 47 22 40.1 40.3 -4.8 -82.1 2544 R 1 0 08 24 29 DA193 08 47 22 56.7 -72.1 2.9 80.4 -81 1 7 0 08 24 29 08 26 58 --- 08 49 52 56.2 -71.9 2.9 80.2 69 F 1 997 08 26 58 B0703+468 08 49 52 68.8 -55.1 1.7 107.5 -31 1 7 997 08 26 58 09 08 22 --- 09 31 22 61.8 -58.7 2.4 96.7 2452 F 1 17552 09 08 22 J1335+5844 09 31 22 45.8 40.7 -4.1 -91.2 -72 1 8 17552 09 08 22 09 52 14 --- 10 15 22 51.5 39.8 -3.3 -101.4 2561 R 1 0 09 52 14 B0703+468 10 15 22 54.3 -59.3 3.1 88.1 -72 1 9 0 09 52 14 10 36 07 --- 10 59 22 46.8 -58.1 3.9 81.0 2561 F 1 17552 10 38 07 J1335+5844 11 01 22 57.2 36.7 -2.6 -113.7 50 1 10 17552 10 38 07 11 22 00 --- 11 45 22 62.1 30.9 -1.8 -128.1 2633 R 1 0 Schedule for VLBA_OV (Code Ov ) Page 3 VLBI monitoring of CSOs 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) ---------------------------------------------------------------------------------------- --- Sun 25 Jan 2004 Day 25 --- 11 22 00 OQ208 11 45 22 59.1 96.1 -2.4 -64.2 -49 1 11 0 11 22 00 11 24 29 --- 11 47 52 59.6 96.6 -2.3 -64.1 100 F 1 997 11 24 29 B0703+468 11 47 52 38.7 -55.7 4.7 73.8 -107 1 11 997 11 24 29 12 05 52 --- 12 29 22 32.0 -52.8 5.4 67.9 2376 F 1 17552 12 05 52 J1335+5844 12 29 22 66.0 21.3 -1.1 -146.1 -74 1 12 17552 12 05 52 12 27 49 --- 12 51 22 67.4 15.0 -0.7 -156.6 1242 R 1 8776 12 27 49 J1335+5844 12 51 22 67.4 15.0 -0.7 -156.6 -4 1 13 8776 12 27 49 12 57 44 --- 13 21 22 68.4 5.0 -0.2 -172.3 1791 F 1 3191 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. Setup file: /home/filehost/cwalker/sched/setups/v4cm-128-4-2-R.set Matches group v4cm_3 in /home/filehost/cwalker/sched/catalogs/freq.dat Setup group: 1 Station: VLBA Total bit rate: 128 Format: VLBA1:4 Bits per sample: 2 Sample rate: 16.000 Number of channels: 4 Passes/head pos: 1 Speedup factor: 2.00 Tape speeds: Low density - 133.330 ips, High density - 80.00 ips Time per pass for 17600 ft, High density tapes is: 00:44:00 1st LO= 7600.00 7600.00 7600.00 7600.00 Net SB= U U U U Pol. = RCP RCP RCP RCP BBC = 1 2 3 4 BBC SB= U U U U IF = B B B B VLBA FE= omit 4cm omit 4cm VLBA Synth= 7.6 15.4 15.4 The following frequency sets based on this setup were used. Frequency Set: 1 Setup file default. Used pcal sets: 1 LO sum= 8405.49 8413.49 8421.49 8429.49 BBC fr= 805.49 813.49 821.49 829.49 Bandwd= 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 S1 S3 S1 S2 S3 S4 PCALXB2= S2 S4 S2 S4 M1 M2 M3 M4 PCALFR1= 510 510 6510 6510 0 0 0 0 PCALFR2= 510 510 6510 6510 0 0 0 0 Track assignments are: track1= 2, 18, 3, 19 barrel=roll_auto SOURCE LIST -- VLBI monitoring of CSOs 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). Source Source position (RA/Dec) (B1950) (J2000) (Date) * B0703+468 * 07 03 06.018000 07 06 48.146946 07 07 07.273275 * 46 52 36.39000 46 47 56.20904 46 47 40.63392 From catalog imbedded in main SCHED input file. * J1335+5844 13 33 36.476487 * 13 35 25.927600 13 35 35.330821 58 59 18.09199 * 58 44 00.28600 58 42 27.57561 From catalog imbedded in main SCHED input file. * DA193 05 52 01.407167 * 05 55 30.805609 05 55 48.409587 39 48 21.94585 * 39 48 49.16500 39 49 00.37190 From catalog imbedded in main SCHED input file. * OQ208 14 04 45.615152 * 14 07 00.394411 14 07 10.964225 28 41 29.23491 * 28 27 14.68994 28 25 52.01601 From catalog imbedded in main SCHED input file. 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) B0703+468 147.7 J1335+5844 113.0 DA193 141.3 OQ208 103.4 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