COVER INFORMATION Station: VLBA_NL (Code Nl ) Experiment: BG176 / Annual modulation candidate J1128+5925 / Gabanyi et al. Exp. Code: BG176B Schedule Version: 1.00 Processed by SCHED version: 6.05 June 2006 PI: Krisztina Eva Gabanyi Address: FOMI, Satellite Geodetic Observatory P.O. Box 585 Budapest, 1592 Hungary Phone: +36 27 374980 (w) / +36 20 5375474 (m) EMAIL: gabanyik@sgo.fomi.hu Fax: +36 27 374982 Phone during observation: +36 20 5375474 Observing mode: At 6cm, 3.6cm, 2cm; dual pol; recording 256 Mbit/s Notes: observations scheduled in 6 epochs, separated by 6-8 weeks fringe finder, calibrator: J0927+3902=4C39.25 polarized, compact, D-term calibrator: J1038+0512 Schedule for VLBA_NL (Code Nl ) Page 2 BG176 / Annual modulation candidate J1128+5925 / Gabanyi et al. 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. For disks, the footages are really the GBytes 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 ---------------------------------------------------------------------------------------- --- Fri 31 Aug 2007 Day 243 --- Next scan frequencies: 4971.49 4971.49 4979.49 4979.49 4987.49 4987.49 4995.49 4995.49 Next BBC frequencies: 871.49 871.49 879.49 879.49 887.49 887.49 895.49 895.49 Next scan bandwidths: 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 17 04 30 J0927+3902 09 36 11 86.8 211.5 0.1 30.1 0 1 1 0 17 04 30 17 08 29 =0923+392 09 40 11 86.3 222.1 0.2 40.1 239 F 1 8 17 04 48 Next scan frequencies: 8405.49 8405.49 8413.49 8413.49 8421.49 8421.49 8429.49 8429.49 Next BBC frequencies: 805.49 805.49 813.49 813.49 821.49 821.49 829.49 829.49 17 08 34 J0927+3902 09 40 16 86.3 222.3 0.2 40.3 0 1 1 8 17 08 29 17 12 33 =0923+392 09 44 16 85.8 230.4 0.3 47.7 239 F 1 16 17 08 29 Next scan frequencies: 15349.49 15349.49 15357.49 15357.49 15365.49 15365.49 15373.49 15373.49 Next BBC frequencies: 749.49 749.49 757.49 757.49 765.49 765.49 773.49 773.49 17 12 38 J0927+3902 09 44 21 85.8 230.6 0.3 47.9 0 1 1 16 17 12 33 17 16 37 =0923+392 09 48 21 85.2 236.8 0.3 53.5 239 F 1 23 17 12 33 17 19 48 J1038+0512 09 51 32 51.9 160.6 -0.8 -14.4 118 1 1 23 17 19 48 17 24 47 =1036+054 09 56 32 52.2 162.5 -0.7 -13.0 299 F 1 33 17 20 06 Source only 3.4 degrees from the Sun. Next scan frequencies: 8405.49 8405.49 8413.49 8413.49 8421.49 8421.49 8429.49 8429.49 Next BBC frequencies: 805.49 805.49 813.49 813.49 821.49 821.49 829.49 829.49 17 24 52 J1038+0512 09 56 37 52.2 162.5 -0.7 -13.0 0 1 1 33 17 24 47 17 29 51 =1036+054 10 01 37 52.5 164.5 -0.6 -11.5 299 F 1 43 17 24 47 Source only 3.4 degrees from the Sun. Schedule for VLBA_NL (Code Nl ) Page 3 BG176 / Annual modulation candidate J1128+5925 / Gabanyi et al. 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. For disks, the footages are really the GBytes 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 ---------------------------------------------------------------------------------------- --- Fri 31 Aug 2007 Day 243 --- Next scan frequencies: 4971.49 4971.49 4979.49 4979.49 4987.49 4987.49 4995.49 4995.49 Next BBC frequencies: 871.49 871.49 879.49 879.49 887.49 887.49 895.49 895.49 17 29 56 J1038+0512 10 01 41 52.5 164.6 -0.6 -11.5 0 1 1 43 17 29 51 17 34 55 =1036+054 10 06 41 52.7 166.6 -0.5 -10.0 299 F 1 53 17 29 51 Source only 3.4 degrees from the Sun. 17 36 49 J1128+5925 10 08 36 68.5 28.4 -1.3 -135.9 16 1 1 53 17 36 49 17 56 16 =1125+596 10 28 06 70.0 22.9 -1.0 -145.2 1167 F 1 90 17 37 07 Next scan frequencies: 8405.49 8405.49 8413.49 8413.49 8421.49 8421.49 8429.49 8429.49 Next BBC frequencies: 805.49 805.49 813.49 813.49 821.49 821.49 829.49 829.49 17 56 20 J1128+5925 10 28 10 70.1 22.9 -1.0 -145.2 0 1 1 90 17 56 16 18 15 47 =1125+596 10 47 40 71.3 16.4 -0.7 -155.6 1167 F 1 128 17 56 16 Next scan frequencies: 15349.49 15349.49 15357.49 15357.49 15365.49 15365.49 15373.49 15373.49 Next BBC frequencies: 749.49 749.49 757.49 757.49 765.49 765.49 773.49 773.49 18 15 51 J1128+5925 10 47 44 71.3 16.4 -0.7 -155.6 0 1 1 128 18 15 47 18 35 18 =1125+596 11 07 14 72.1 8.9 -0.4 -166.9 1167 F 1 166 18 15 47 18 37 27 J1038+0512 11 09 23 52.8 192.5 0.5 9.3 0 1 1 166 18 37 27 18 42 26 =1036+054 11 14 23 52.6 194.5 0.6 10.8 299 F 1 176 18 37 45 Source only 3.4 degrees from the Sun. Next scan frequencies: 8405.49 8405.49 8413.49 8413.49 8421.49 8421.49 8429.49 8429.49 Next BBC frequencies: 805.49 805.49 813.49 813.49 821.49 821.49 829.49 829.49 18 42 30 J1038+0512 11 14 28 52.6 194.6 0.6 10.8 0 1 1 176 18 42 26 18 47 30 =1036+054 11 19 28 52.3 196.6 0.7 12.3 299 F 1 185 18 42 26 Source only 3.4 degrees from the Sun. Schedule for VLBA_NL (Code Nl ) Page 4 BG176 / Annual modulation candidate J1128+5925 / Gabanyi et al. 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. For disks, the footages are really the GBytes 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 ---------------------------------------------------------------------------------------- --- Fri 31 Aug 2007 Day 243 --- Next scan frequencies: 4971.49 4971.49 4979.49 4979.49 4987.49 4987.49 4995.49 4995.49 Next BBC frequencies: 871.49 871.49 879.49 879.49 887.49 887.49 895.49 895.49 18 47 34 J1038+0512 11 19 32 52.3 196.6 0.7 12.3 0 1 1 185 18 47 30 18 52 33 =1036+054 11 24 32 52.0 198.6 0.8 13.8 299 F 1 195 18 47 30 Source only 3.4 degrees from the Sun. 18 54 29 J1128+5925 11 26 28 72.4 360.9 0.0 -178.7 1 1 1 195 18 54 29 19 12 56 =1125+596 11 44 58 72.2 353.2 0.3 170.0 1107 F 1 231 18 54 47 Next scan frequencies: 8405.49 8405.49 8413.49 8413.49 8421.49 8421.49 8429.49 8429.49 Next BBC frequencies: 805.49 805.49 813.49 813.49 821.49 821.49 829.49 829.49 19 13 00 J1128+5925 11 45 03 72.2 353.2 0.3 169.9 0 1 1 231 19 12 56 19 31 27 =1125+596 12 03 33 71.6 345.8 0.6 159.0 1107 F 1 267 19 12 56 Next scan frequencies: 15349.49 15349.49 15357.49 15357.49 15365.49 15365.49 15373.49 15373.49 Next BBC frequencies: 749.49 749.49 757.49 757.49 765.49 765.49 773.49 773.49 19 31 32 J1128+5925 12 03 37 71.6 345.8 0.6 159.0 0 1 1 267 19 31 27 19 49 59 =1125+596 12 22 07 70.5 339.3 0.9 148.8 1107 F 1 303 19 31 27 19 52 22 J0927+3902 12 24 31 56.6 280.3 2.9 70.8 98 1 1 303 19 52 22 19 56 21 =0923+392 12 28 31 55.8 280.8 3.0 70.5 239 F 1 310 19 52 40 Next scan frequencies: 8405.49 8405.49 8413.49 8413.49 8421.49 8421.49 8429.49 8429.49 Next BBC frequencies: 805.49 805.49 813.49 813.49 821.49 821.49 829.49 829.49 19 56 26 J0927+3902 12 28 35 55.8 280.8 3.0 70.5 0 1 1 310 19 56 21 20 00 25 =0923+392 12 32 35 55.1 281.2 3.1 70.3 239 F 1 318 19 56 21 Schedule for VLBA_NL (Code Nl ) Page 5 BG176 / Annual modulation candidate J1128+5925 / Gabanyi et al. 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. For disks, the footages are really the GBytes 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 ---------------------------------------------------------------------------------------- --- Fri 31 Aug 2007 Day 243 --- Next scan frequencies: 4971.49 4971.49 4979.49 4979.49 4987.49 4987.49 4995.49 4995.49 Next BBC frequencies: 871.49 871.49 879.49 879.49 887.49 887.49 895.49 895.49 20 00 29 J0927+3902 12 32 40 55.1 281.2 3.1 70.3 0 1 1 318 20 00 25 20 04 29 =0923+392 12 36 40 54.3 281.7 3.2 70.0 239 F 1 326 20 00 25 20 07 42 J1038+0512 12 39 54 44.6 224.7 2.0 31.8 150 1 1 326 20 07 42 20 12 42 =1036+054 12 44 54 43.9 226.2 2.1 32.7 299 F 1 336 20 08 00 Source only 3.4 degrees from the Sun. Next scan frequencies: 8405.49 8405.49 8413.49 8413.49 8421.49 8421.49 8429.49 8429.49 Next BBC frequencies: 805.49 805.49 813.49 813.49 821.49 821.49 829.49 829.49 20 12 46 J1038+0512 12 44 58 43.9 226.2 2.1 32.7 0 1 1 336 20 12 42 20 17 45 =1036+054 12 49 58 43.2 227.6 2.2 33.6 299 F 1 345 20 12 42 Source only 3.4 degrees from the Sun. Next scan frequencies: 15349.49 15349.49 15357.49 15357.49 15365.49 15365.49 15373.49 15373.49 Next BBC frequencies: 749.49 749.49 757.49 757.49 765.49 765.49 773.49 773.49 20 17 50 J1038+0512 12 50 03 43.2 227.6 2.2 33.6 0 1 1 345 20 17 45 20 22 49 =1036+054 12 55 03 42.5 229.0 2.3 34.4 299 F 1 355 20 17 45 Source only 3.4 degrees from the Sun. 20 24 51 J1128+5925 12 57 05 67.7 329.7 1.5 132.3 49 1 1 355 20 24 51 20 43 18 =1125+596 13 15 35 65.9 325.9 1.8 124.9 1107 F 1 391 20 25 09 Next scan frequencies: 8405.49 8405.49 8413.49 8413.49 8421.49 8421.49 8429.49 8429.49 Next BBC frequencies: 805.49 805.49 813.49 813.49 821.49 821.49 829.49 829.49 20 43 22 J1128+5925 13 15 39 65.9 325.9 1.8 124.9 0 1 1 391 20 43 18 21 01 49 =1125+596 13 34 09 63.8 323.0 2.1 118.2 1107 F 1 427 20 43 18 Schedule for VLBA_NL (Code Nl ) Page 6 BG176 / Annual modulation candidate J1128+5925 / Gabanyi et al. 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. For disks, the footages are really the GBytes 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 ---------------------------------------------------------------------------------------- --- Fri 31 Aug 2007 Day 243 --- Next scan frequencies: 4971.49 4971.49 4979.49 4979.49 4987.49 4987.49 4995.49 4995.49 Next BBC frequencies: 871.49 871.49 879.49 879.49 887.49 887.49 895.49 895.49 21 01 54 J1128+5925 13 34 14 63.8 323.0 2.1 118.2 0 1 1 427 21 01 49 21 20 20 =1125+596 13 52 44 61.7 320.8 2.4 112.3 1107 F 1 463 21 01 49 21 22 59 J1038+0512 13 55 23 33.1 244.0 3.3 42.3 95 1 1 463 21 22 59 21 27 58 =1036+054 14 00 23 32.3 245.0 3.4 42.8 299 F 1 472 21 23 17 Source only 3.4 degrees from the Sun. Next scan frequencies: 8405.49 8405.49 8413.49 8413.49 8421.49 8421.49 8429.49 8429.49 Next BBC frequencies: 805.49 805.49 813.49 813.49 821.49 821.49 829.49 829.49 21 28 03 J1038+0512 14 00 27 32.3 245.1 3.4 42.8 0 1 1 472 21 27 58 21 33 02 =1036+054 14 05 27 31.4 246.1 3.4 43.2 299 F 1 482 21 27 58 Source only 3.4 degrees from the Sun. Next scan frequencies: 15349.49 15349.49 15357.49 15357.49 15365.49 15365.49 15373.49 15373.49 Next BBC frequencies: 749.49 749.49 757.49 757.49 765.49 765.49 773.49 773.49 21 33 06 J1038+0512 14 05 32 31.4 246.2 3.4 43.2 0 1 1 482 21 33 02 21 38 06 =1036+054 14 10 32 30.6 247.2 3.5 43.7 299 F 1 492 21 33 02 Source only 3.4 degrees from the Sun. 21 39 35 J1128+5925 14 12 02 59.4 319.1 2.7 106.7 26 1 1 492 21 39 35 21 58 02 =1125+596 14 30 32 57.1 318.0 3.0 101.8 1107 F 1 528 21 39 53 Next scan frequencies: 8405.49 8405.49 8413.49 8413.49 8421.49 8421.49 8429.49 8429.49 Next BBC frequencies: 805.49 805.49 813.49 813.49 821.49 821.49 829.49 829.49 21 58 06 J1128+5925 14 30 36 57.1 318.0 3.0 101.8 0 1 1 528 21 58 02 22 16 33 =1125+596 14 49 06 54.8 317.3 3.3 97.2 1107 F 1 563 21 58 02 Schedule for VLBA_NL (Code Nl ) Page 7 BG176 / Annual modulation candidate J1128+5925 / Gabanyi et al. 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. For disks, the footages are really the GBytes 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 ---------------------------------------------------------------------------------------- --- Fri 31 Aug 2007 Day 243 --- Next scan frequencies: 4971.49 4971.49 4979.49 4979.49 4987.49 4987.49 4995.49 4995.49 Next BBC frequencies: 871.49 871.49 879.49 879.49 887.49 887.49 895.49 895.49 22 16 38 J1128+5925 14 49 10 54.8 317.3 3.3 97.2 0 1 1 563 22 16 33 22 35 05 =1125+596 15 07 40 52.4 317.0 3.7 92.9 1107 F 1 599 22 16 33 22 37 16 J1038+0512 15 09 52 20.0 258.7 4.5 47.2 60 1 1 599 22 37 16 22 41 45 =1036+054 15 14 22 19.2 259.5 4.6 47.4 269 F 1 608 22 37 34 Source only 3.4 degrees from the Sun. Next scan frequencies: 8405.49 8405.49 8413.49 8413.49 8421.49 8421.49 8429.49 8429.49 Next BBC frequencies: 805.49 805.49 813.49 813.49 821.49 821.49 829.49 829.49 22 41 49 J1038+0512 15 14 26 19.2 259.5 4.6 47.4 0 1 1 608 22 41 45 22 46 19 =1036+054 15 18 56 18.3 260.3 4.7 47.6 269 F 1 617 22 41 45 Source only 3.4 degrees from the Sun. Next scan frequencies: 15349.49 15349.49 15357.49 15357.49 15365.49 15365.49 15373.49 15373.49 Next BBC frequencies: 749.49 749.49 757.49 757.49 765.49 765.49 773.49 773.49 22 46 23 J1038+0512 15 19 01 18.3 260.3 4.7 47.6 0 1 1 617 22 46 19 22 50 53 =1036+054 15 23 31 17.5 261.1 4.7 47.7 269 F 1 626 22 46 19 Source only 3.4 degrees from the Sun. 22 52 12 J0927+3902 15 24 50 25.2 300.8 6.0 55.5 47 1 1 626 22 52 12 22 56 11 =0923+392 15 28 50 24.6 301.3 6.0 55.1 239 F 1 633 22 52 30 Next scan frequencies: 8405.49 8405.49 8413.49 8413.49 8421.49 8421.49 8429.49 8429.49 Next BBC frequencies: 805.49 805.49 813.49 813.49 821.49 821.49 829.49 829.49 22 56 16 J0927+3902 15 28 55 24.6 301.3 6.0 55.1 0 1 1 633 22 56 11 23 00 15 =0923+392 15 32 55 23.9 301.8 6.1 54.7 239 F 1 641 22 56 11 Schedule for VLBA_NL (Code Nl ) Page 8 BG176 / Annual modulation candidate J1128+5925 / Gabanyi et al. 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. For disks, the footages are really the GBytes 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 ---------------------------------------------------------------------------------------- --- Fri 31 Aug 2007 Day 243 --- Next scan frequencies: 4971.49 4971.49 4979.49 4979.49 4987.49 4987.49 4995.49 4995.49 Next BBC frequencies: 871.49 871.49 879.49 879.49 887.49 887.49 895.49 895.49 23 00 20 J0927+3902 15 32 59 23.9 301.8 6.1 54.7 0 1 1 641 23 00 15 23 04 19 =0923+392 15 36 59 23.3 302.3 6.2 54.2 239 F 1 649 23 00 15 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/v6cm-256-8-2.set Matches group v6cm_2 in /home/filehost/cwalker/sched/catalogs/freq.dat Setup group: 3 Station: VLBA_NL Total bit rate: 256 Format: VLBA1:2 Bits per sample: 2 Sample rate: 16.000 Number of channels: 8 Speedup factor: 1.00 Disk used to record data. 1st LO= 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 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 = A C A C A C A C VLBA FE= 6cm omit 6cm omit VLBA Synth= 15.4 4.1 15.4 The following frequency sets based on this setup were used. Frequency Set: 3 Setup file default. Used pcal sets: 1 LO sum= 4971.49 4971.49 4979.49 4979.49 4987.49 4987.49 4995.49 4995.49 BBC fr= 871.49 871.49 879.49 879.49 887.49 887.49 895.49 895.49 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= 510 510 510 510 6510 6510 6510 6510 PCALFR2= 510 510 510 510 6510 6510 6510 6510 Track assignments are: track1= 2, 10, 18, 26, 3, 11, 19, 27 barrel=roll_off Setup file: /home/filehost/cwalker/sched/setups/v4cm-256-8-2.set Matches group v4cm_3 in /home/filehost/cwalker/sched/catalogs/freq.dat Setup group: 13 Station: VLBA_NL Total bit rate: 256 Format: VLBA1:2 Bits per sample: 2 Sample rate: 16.000 Number of channels: 8 Speedup factor: 1.00 Disk used to record data. 1st LO= 7600.00 7600.00 7600.00 7600.00 7600.00 7600.00 7600.00 7600.00 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 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: 13 Setup file default. Used pcal sets: 1 LO sum= 8405.49 8405.49 8413.49 8413.49 8421.49 8421.49 8429.49 8429.49 BBC fr= 805.49 805.49 813.49 813.49 821.49 821.49 829.49 829.49 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= 510 510 510 510 6510 6510 6510 6510 PCALFR2= 510 510 510 510 6510 6510 6510 6510 Track assignments are: track1= 2, 10, 18, 26, 3, 11, 19, 27 barrel=roll_off Setup file: /home/filehost/cwalker/sched/setups/v2cm-256-8-2.set Matches group v2cm_d3 in /home/filehost/cwalker/sched/catalogs/freq.dat Fourth 2cm filter Setup group: 23 Station: VLBA_NL Total bit rate: 256 Format: VLBA1:2 Bits per sample: 2 Sample rate: 16.000 Number of channels: 8 Speedup factor: 1.00 Disk used to record data. 1st LO= 14600.00 14600.00 14600.00 14600.00 14600.00 14600.00 14600.00 14600.00 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 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: 23 Setup file default. Used pcal sets: 1 LO sum= 15349.49 15349.49 15357.49 15357.49 15365.49 15365.49 15373.49 15373.49 BBC fr= 749.49 749.49 757.49 757.49 765.49 765.49 773.49 773.49 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= 510 510 510 510 6510 6510 6510 6510 PCALFR2= 510 510 510 510 6510 6510 6510 6510 Track assignments are: track1= 2, 10, 18, 26, 3, 11, 19, 27 barrel=roll_off SOURCE LIST -- BG176 / Annual modulation candidate J1128+5925 / Gabanyi et al. 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) * J0927+3902 09 23 55.319213 * 09 27 03.013934 09 27 31.061076 0.26 0923+392 39 15 23.56648 * 39 02 20.85188 39 00 26.09699 0.40 4C39.25 /home/filehost/cwalker/sched/catalogs/sources.vlba J0927+39 VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 0.598 scan hours, 25.130 baseline hours above horizon. * J1038+0512 10 36 10.827237 * 10 38 46.779890 10 39 09.904824 0.31 1036+054 05 28 06.89953 * 05 12 29.08646 05 10 12.80321 0.26 /home/filehost/cwalker/sched/catalogs/sources.vlba VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 1.222 scan hours, 51.757 baseline hours above horizon. * J1128+5925 11 25 23.181652 * 11 28 13.340676 11 28 38.378339 0.43 1125+596 59 41 46.14397 * 59 25 14.79866 59 22 49.10648 0.41 J1128+59 /home/filehost/cwalker/sched/catalogs/sources.vlba VLBA Calib Survey - GSFC sols. - created L.Petrov 2005f_astro 3.740 scan hours, 168.289 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) J0927+3902 34.4 J1038+0512 3.4 J1128+5925 51.7 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