COVER INFORMATION Station: VLBA_HN (Code Hn ) 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_HN (Code Hn ) 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 07 24 32 73.1 266.9 1.5 72.1 0 1 1 0 03 57 13 03 59 42 --- 07 27 02 72.7 267.4 1.5 72.2 150 F 1 997 04 01 42 B0703+468 07 29 02 84.5 316.7 0.4 132.9 81 1 1 997 04 01 42 04 43 05 --- 08 10 32 78.1 294.5 1.1 103.2 2483 F 1 17552 04 43 05 B0703+468 08 10 32 78.1 294.5 1.1 103.2 -4 1 2 17552 04 43 05 05 26 58 --- 08 54 32 70.7 290.8 1.8 91.7 2629 R 1 0 05 26 58 B0703+468 08 54 32 70.7 290.8 1.8 91.7 -4 1 3 0 05 26 58 06 10 51 --- 09 38 32 63.2 291.5 2.5 84.3 2629 F 1 17552 06 10 51 DA193 09 38 32 48.9 285.3 3.7 66.8 -35 1 4 17552 06 10 51 06 13 20 --- 09 41 02 48.4 285.6 3.8 66.6 115 R 1 16555 06 15 20 B0703+468 09 43 02 62.4 291.7 2.6 83.6 86 1 4 16555 06 15 20 06 56 43 --- 10 24 32 55.4 293.9 3.3 77.9 2483 R 1 0 06 56 43 B0703+468 10 24 32 55.4 293.9 3.3 77.9 -4 1 5 0 06 56 43 07 40 36 --- 11 08 32 48.1 297.0 4.0 72.4 2629 F 1 17552 07 40 36 J1335+5844 11 08 32 62.5 402.3 -2.5 -108.6 -76 1 6 17552 07 40 36 08 24 29 --- 11 52 32 67.6 396.3 -1.7 -123.4 2557 R 1 0 08 24 29 DA193 11 52 32 26.4 301.0 5.9 54.8 -88 1 7 0 08 24 29 08 26 58 --- 11 55 02 26.0 301.3 6.0 54.5 61 F 1 997 08 26 58 B0703+468 11 55 02 40.7 300.9 4.8 66.6 -35 1 7 997 08 26 58 09 08 22 --- 12 36 32 34.3 304.8 5.5 61.4 2448 F 1 17552 09 08 22 J1335+5844 12 36 32 71.8 385.0 -1.0 -143.4 -81 1 8 17552 09 08 22 09 52 14 --- 13 20 32 74.1 367.1 -0.3 -169.9 2552 R 1 0 09 52 14 B0703+468 13 20 32 27.9 309.4 6.2 55.8 -98 1 9 0 09 52 14 10 36 07 --- 14 04 32 21.9 314.4 7.0 49.8 2534 F 1 17552 10 38 07 J1335+5844 14 06 32 73.5 345.7 0.5 159.7 10 1 10 17552 10 38 07 11 22 00 --- 14 50 32 70.4 330.1 1.2 135.4 2633 R 1 0 Schedule for VLBA_HN (Code Hn ) 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 14 50 32 73.1 214.6 0.7 28.2 -83 1 11 0 11 22 00 11 24 29 --- 14 53 02 72.8 216.2 0.8 29.5 67 F 1 997 11 24 29 B0703+468 14 53 02 15.8 320.4 7.8 42.9 -120 1 11 997 11 24 29 12 05 52 --- 15 34 32 11.3 326.0 8.5 36.7 2363 F 1 17552 12 05 52 J1335+5844 15 34 32 65.8 321.0 2.0 117.6 -115 1 12 17552 12 05 52 12 27 49 --- 15 56 32 63.2 318.3 2.3 110.4 1201 R 1 8776 12 27 49 J1335+5844 15 56 32 63.2 318.3 2.3 110.4 -4 1 13 8776 12 27 49 12 57 44 --- 16 26 32 59.5 316.1 2.8 102.0 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