COVER INFORMATION Station: VLBA_OV (Code Ov ) Experiment: be041; 8 and 15 GHz observations of J2257-364 Exp. Code: be041 Schedule Version: 1.00 Processed by SCHED version: 6.02 July 2005 PI: Philip Edwards Address: Institute of Space and Astronautical Science 3-1-1 Yoshinodai, Sagamihara Kanagawa 229-8510 Japan Phone: +81-42-759-8342 EMAIL: pge@vsop.isas.jaxa.jp Fax: +81-42-759-8485 Phone during observation: +81-42-759-8342 Observing mode: 128-4-2 Notes: Fringe finder J2258-27 6.0 hrs dynamically scheduled centered at LST 23.0 Schedule for VLBA_OV (Code Ov ) Page 2 be041; 8 and 15 GHz observations of J2257-364 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). SYNC: Time correlator is expected to sync up. 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) SYNC ---------------------------------------------------------------------------------------- --- Mon 29 Aug 2005 Day 241 --- 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 04 42 30 J2258-27 19 19 22 7.0 133.4 -3.7 -40.9 0 1 1 0 04 42 30 04 45 00 --- 19 21 52 7.4 133.8 -3.6 -40.6 150 F 1 997 04 42 43 Next scan frequencies: 15349.49 15357.49 15365.49 15373.49 Next BBC frequencies: 749.49 757.49 765.49 773.49 04 57 57 J2258-27 19 34 52 9.2 136.0 -3.4 -38.7 768 1 1 997 04 57 57 04 59 57 --- 19 36 52 9.5 136.4 -3.4 -38.5 120 F 1 1795 04 58 10 Next scan frequencies: 8405.49 8413.49 8421.49 8429.49 Next BBC frequencies: 805.49 813.49 821.49 829.49 05 44 20 J2258-27 20 21 22 15.1 144.6 -2.6 -31.5 2645 1 1 1795 05 44 20 05 46 19 --- 20 23 22 15.4 145.0 -2.6 -31.1 120 F 1 2593 05 44 33 05 46 49 J2257-364 20 23 52 8.2 149.7 -2.6 -30.0 10 1 1 2593 05 46 49 05 57 18 --- 20 34 22 9.2 151.5 -2.4 -28.1 628 F 1 6781 05 47 02 Next scan frequencies: 15349.49 15357.49 15365.49 15373.49 Next BBC frequencies: 749.49 757.49 765.49 773.49 05 57 48 J2258-27 20 34 52 16.6 147.3 -2.4 -29.2 9 1 1 6781 05 57 48 05 59 47 --- 20 36 52 16.9 147.7 -2.4 -28.8 120 F 1 7579 05 58 01 06 00 17 J2257-364 20 37 22 9.5 152.1 -2.3 -27.6 9 1 1 7579 06 00 17 06 12 15 --- 20 49 22 10.6 154.3 -2.1 -25.4 718 F 1 12366 06 00 30 Next scan frequencies: 8405.49 8413.49 8421.49 8429.49 Next BBC frequencies: 805.49 813.49 821.49 829.49 06 12 30 J2257-364 20 49 37 10.6 154.3 -2.1 -25.4 10 1 2 12366 06 12 15 06 27 13 --- 21 04 22 11.8 157.1 -1.9 -22.7 883 R 1 16850 06 12 15 Next scan frequencies: 15349.49 15357.49 15365.49 15373.49 Next BBC frequencies: 749.49 757.49 765.49 773.49 06 27 28 J2257-364 21 04 37 11.8 157.1 -1.9 -22.6 10 1 2 16850 06 27 13 06 42 10 --- 21 19 22 12.9 160.0 -1.6 -19.8 883 R 1 10867 06 27 13 Schedule for VLBA_OV (Code Ov ) Page 3 be041; 8 and 15 GHz observations of J2257-364 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). SYNC: Time correlator is expected to sync up. 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) SYNC ---------------------------------------------------------------------------------------- --- Mon 29 Aug 2005 Day 241 --- Next scan frequencies: 8405.49 8413.49 8421.49 8429.49 Next BBC frequencies: 805.49 813.49 821.49 829.49 06 44 10 J2258-27 21 21 22 21.0 157.1 -1.6 -20.5 98 1 2 10867 06 44 10 06 46 10 --- 21 23 22 21.1 157.6 -1.6 -20.1 120 R 1 10069 06 44 23 06 46 40 J2257-364 21 23 52 13.2 160.8 -1.6 -19.0 8 1 2 10069 06 46 40 06 57 08 --- 21 34 22 13.9 162.9 -1.4 -16.9 628 R 1 5880 06 46 53 Next scan frequencies: 15349.49 15357.49 15365.49 15373.49 Next BBC frequencies: 749.49 757.49 765.49 773.49 06 57 38 J2258-27 21 34 52 21.9 160.1 -1.4 -17.8 8 1 2 5880 06 57 38 06 59 37 --- 21 36 52 22.1 160.6 -1.4 -17.4 120 R 1 5082 06 57 51 07 00 07 J2257-364 21 37 22 14.0 163.5 -1.3 -16.3 8 1 2 5082 07 00 07 07 12 05 --- 21 49 22 14.7 165.9 -1.1 -14.0 718 R 1 296 07 00 20 Next scan frequencies: 8405.49 8413.49 8421.49 8429.49 Next BBC frequencies: 805.49 813.49 821.49 829.49 07 12 20 J2257-364 21 49 37 14.7 165.9 -1.1 -13.9 10 1 3 296 07 12 05 07 27 03 --- 22 04 22 15.3 168.9 -0.9 -10.9 883 F 1 6279 07 12 05 Next scan frequencies: 15349.49 15357.49 15365.49 15373.49 Next BBC frequencies: 749.49 757.49 765.49 773.49 07 27 18 J2257-364 22 04 37 15.3 169.0 -0.9 -10.9 10 1 3 6279 07 27 03 07 42 00 --- 22 19 22 15.8 172.0 -0.6 -7.9 883 F 1 12263 07 27 03 Next scan frequencies: 8405.49 8413.49 8421.49 8429.49 Next BBC frequencies: 805.49 813.49 821.49 829.49 07 42 15 J2257-364 22 19 37 15.8 172.1 -0.6 -7.8 10 1 4 12263 07 42 00 07 56 58 --- 22 34 22 16.1 175.2 -0.4 -4.8 883 R 1 16954 07 42 00 Next scan frequencies: 15349.49 15357.49 15365.49 15373.49 Next BBC frequencies: 749.49 757.49 765.49 773.49 07 57 13 J2257-364 22 34 37 16.1 175.2 -0.4 -4.7 10 1 4 16954 07 56 58 08 11 56 --- 22 49 22 16.3 178.3 -0.1 -1.7 883 R 1 10970 07 56 58 Schedule for VLBA_OV (Code Ov ) Page 4 be041; 8 and 15 GHz observations of J2257-364 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). SYNC: Time correlator is expected to sync up. 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) SYNC ---------------------------------------------------------------------------------------- --- Mon 29 Aug 2005 Day 241 --- Next scan frequencies: 8405.49 8413.49 8421.49 8429.49 Next BBC frequencies: 805.49 813.49 821.49 829.49 08 12 25 J2258-27 22 49 52 24.8 177.9 -0.1 -1.9 7 1 4 10970 08 12 25 08 14 25 --- 22 51 52 24.8 178.4 -0.1 -1.4 120 R 1 10172 08 12 38 08 14 55 J2257-364 22 52 22 16.3 178.9 -0.1 -1.1 7 1 4 10172 08 14 55 08 26 53 --- 23 04 22 16.3 181.4 0.1 1.4 718 R 1 5385 08 15 08 Next scan frequencies: 15349.49 15357.49 15365.49 15373.49 Next BBC frequencies: 749.49 757.49 765.49 773.49 08 28 53 J2258-27 23 06 22 24.8 181.9 0.1 1.7 97 1 4 5385 08 28 53 08 30 52 --- 23 08 22 24.8 182.4 0.2 2.2 120 R 1 4587 08 29 06 08 31 22 J2257-364 23 08 52 16.3 182.4 0.2 2.4 7 1 4 4587 08 31 22 08 41 51 --- 23 19 22 16.2 184.6 0.4 4.5 628 R 1 399 08 31 35 Next scan frequencies: 8405.49 8413.49 8421.49 8429.49 Next BBC frequencies: 805.49 813.49 821.49 829.49 08 42 06 J2257-364 23 19 37 16.2 184.6 0.4 4.6 10 1 5 399 08 41 51 08 56 48 --- 23 34 22 15.8 187.7 0.6 7.6 883 F 1 6383 08 41 51 Next scan frequencies: 15349.49 15357.49 15365.49 15373.49 Next BBC frequencies: 749.49 757.49 765.49 773.49 08 57 03 J2257-364 23 34 37 15.8 187.7 0.6 7.7 10 1 5 6383 08 56 48 09 11 46 --- 23 49 22 15.4 190.8 0.9 10.7 883 F 1 12366 08 56 48 Next scan frequencies: 8405.49 8413.49 8421.49 8429.49 Next BBC frequencies: 805.49 813.49 821.49 829.49 09 12 16 J2258-27 23 49 52 23.7 192.4 0.9 11.2 7 1 5 12366 09 12 16 09 14 15 --- 23 51 52 23.6 192.9 0.9 11.6 120 F 1 13164 09 12 29 09 14 45 J2257-364 23 52 22 15.3 191.4 0.9 11.3 7 1 6 13164 09 14 45 09 26 43 --- 00 04 22 14.7 193.8 1.1 13.7 718 R 1 17249 09 14 58 Schedule for VLBA_OV (Code Ov ) Page 5 be041; 8 and 15 GHz observations of J2257-364 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). SYNC: Time correlator is expected to sync up. 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) SYNC ---------------------------------------------------------------------------------------- --- Mon 29 Aug 2005 Day 241 --- Next scan frequencies: 15349.49 15357.49 15365.49 15373.49 Next BBC frequencies: 749.49 757.49 765.49 773.49 09 28 43 J2258-27 00 06 22 22.9 196.3 1.1 14.6 97 1 6 17249 09 28 43 09 30 43 --- 00 08 22 22.8 196.7 1.2 15.0 120 R 1 16451 09 28 56 09 31 13 J2257-364 00 08 52 14.5 194.7 1.2 14.6 7 1 6 16451 09 31 13 09 41 41 --- 00 19 22 13.9 196.8 1.4 16.7 628 R 1 12263 09 31 26 Next scan frequencies: 8405.49 8413.49 8421.49 8429.49 Next BBC frequencies: 805.49 813.49 821.49 829.49 09 41 56 J2257-364 00 19 37 13.9 196.9 1.4 16.7 10 1 6 12263 09 41 41 09 56 38 --- 00 34 22 13.0 199.8 1.6 19.6 883 R 1 6279 09 41 41 Next scan frequencies: 15349.49 15357.49 15365.49 15373.49 Next BBC frequencies: 749.49 757.49 765.49 773.49 09 56 53 J2257-364 00 34 37 13.0 199.8 1.6 19.6 10 1 6 6279 09 56 38 10 11 36 --- 00 49 22 11.9 202.7 1.9 22.4 883 R 1 296 09 56 38 Next scan frequencies: 8405.49 8413.49 8421.49 8429.49 Next BBC frequencies: 805.49 813.49 821.49 829.49 10 12 06 J2258-27 00 49 52 19.8 206.0 1.9 23.3 8 1 7 296 10 12 06 10 14 06 --- 00 51 52 19.6 206.5 1.9 23.7 120 F 1 1093 10 12 19 10 14 35 J2257-364 00 52 22 11.7 203.2 1.9 23.0 8 1 7 1093 10 14 35 10 26 33 --- 01 04 22 10.7 205.5 2.1 25.2 718 F 1 5880 10 14 48 Next scan frequencies: 15349.49 15357.49 15365.49 15373.49 Next BBC frequencies: 749.49 757.49 765.49 773.49 10 28 33 J2258-27 01 06 22 18.2 209.5 2.1 26.4 99 1 7 5880 10 28 33 10 30 33 --- 01 08 22 18.0 209.9 2.2 26.7 120 F 1 6678 10 28 46 10 31 03 J2257-364 01 08 52 10.3 206.3 2.2 26.0 8 1 7 6678 10 31 03 10 41 31 --- 01 19 22 9.4 208.2 2.4 27.9 628 F 1 10867 10 31 16 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: 6 Station: VLBA_OV 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 used at high density at 80.000 ips. Time per pass is 44.00 minutes. 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: 6 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 Setup file: /home/filehost/cwalker/sched/setups/v2cm-128-4-2-L.set Matches group v2cm_d3 in /home/filehost/cwalker/sched/catalogs/freq.dat Fourth 2cm filter Setup group: 13 Station: VLBA_OV 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 used at high density at 80.000 ips. Time per pass is 44.00 minutes. 1st LO= 14600.00 14600.00 14600.00 14600.00 Net SB= U U U U Pol. = LCP LCP LCP LCP BBC = 1 2 3 4 BBC SB= U U U U IF = D D D D VLBA FE= omit 2cm omit 2cm VLBA Synth= 14.6 10.9 10.9 The following frequency sets based on this setup were used. Frequency Set: 12 Setup file default. Used pcal sets: 1 LO sum= 15349.49 15357.49 15365.49 15373.49 BBC fr= 749.49 757.49 765.49 773.49 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 -- be041; 8 and 15 GHz observations of J2257-364 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) Error (B1950) (J2000) (Date) (mas) * J2257-364 22 54 23.108546 * 22 57 10.606781 22 57 31.249307 0.00 -36 43 47.24537 *-36 27 43.99567 -36 25 50.79073 0.00 From catalog imbedded in main SCHED input file. 5.211 scan hours, 83.214 baseline hours above horizon. J2258-2758 22 55 22.460654 * 22 58 05.962887 22 58 25.912008 0.23 2255-282 -28 14 25.61877 *-27 58 21.25675 -27 56 27.66785 0.70 * J2258-27 /home/filehost/cwalker/sched/catalogs/sources.vlba VLBA Calib Srcs - GSFC sols. - catalog 2004f_astro 0.407 scan hours, 7.106 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) J2257-364 152.2 J2258-27 160.3 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