COVER INFORMATION Station: JODRELL1 (Code Jb ) Experiment: Looking for changes in the jet structure of the z=5.3 blazar J1026+2542 Exp. Code: EF024A Schedule Version: 1.00 Processed by SCHED version: 11.00 Release of Feb. 15, 2013 PI: Sandor Frey Address: FOMI Satellite Geodetic Observatory P.O. Box 585 H-1592 Budapest Hungary Phone: +36 27 200802 EMAIL: frey@sgo.fomi.hu Fax: +36 27 200933 Phone during observation: +36 27 200802 Observing mode: 6 cm 1 Gb/s Notes: Schedule for JODRELL1 (Code Jb ) Page 2 Looking for changes in the jet structure of the z=5.3 blazar J1026+2542 UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Tue 28 May 2013 Day 148 --- Next scan frequencies: 4942.49 4942.49 4942.49 4942.49 4974.49 4974.49 4974.49 4974.49 5006.49 5006.49 5006.49 5006.49 5038.49 5038.49 5038.49 5038.49 Next BBC frequencies: 102.49 102.49 102.49 102.49 134.49 134.49 134.49 134.49 166.49 166.49 166.49 166.49 198.49 198.49 198.49 198.49 Next scan bandwidths: 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 12 40 00 J0854+2006 04 55 38 33.8 101.9 -4.0 -38.6 0 0 12 40 00 12 52 00 =0851+202 05 07 40 35.5 104.6 -3.8 -38.1 720 92 12 40 04 12 54 10 J1026+2542 05 09 50 26.5 81.9 -5.3 -41.1 23 92 12 54 10 13 08 30 =1023+259 05 24 13 28.7 84.7 -5.0 -41.4 860 202 12 54 14 13 09 10 J1026+2542 05 24 53 28.8 84.8 -5.0 -41.4 33 202 13 09 10 13 23 30 =1023+259 05 39 15 30.9 87.6 -4.8 -41.6 860 312 13 09 14 13 24 10 J1026+2542 05 39 55 31.0 87.8 -4.8 -41.6 32 312 13 24 10 13 38 30 =1023+259 05 54 18 33.2 90.6 -4.5 -41.6 860 422 13 24 14 13 39 10 J1026+2542 05 54 58 33.3 90.7 -4.5 -41.6 32 422 13 39 10 13 53 30 =1023+259 06 09 20 35.4 93.7 -4.3 -41.5 860 532 13 39 14 13 54 10 J1026+2542 06 10 00 35.5 93.8 -4.3 -41.5 32 532 13 54 10 14 08 30 =1023+259 06 24 23 37.7 96.9 -4.0 -41.2 860 643 13 54 14 14 09 10 J1026+2542 06 25 03 37.8 97.0 -4.0 -41.2 32 643 14 09 10 14 23 30 =1023+259 06 39 25 39.9 100.1 -3.8 -40.8 860 753 14 09 14 14 24 10 J1026+2542 06 40 05 40.0 100.3 -3.8 -40.8 32 753 14 24 10 14 38 30 =1023+259 06 54 28 42.1 103.5 -3.5 -40.2 860 863 14 24 14 14 39 10 J1026+2542 06 55 08 42.2 103.7 -3.5 -40.2 32 863 14 39 10 14 53 30 =1023+259 07 09 30 44.2 107.1 -3.3 -39.4 860 973 14 39 14 14 55 40 J1159+2914 07 11 40 33.4 84.7 -4.8 -43.0 24 973 14 55 40 15 07 40 =1156+295 07 23 42 35.2 87.0 -4.6 -43.2 720 1065 14 55 44 15 10 00 J1026+2542 07 26 03 46.6 111.3 -3.0 -38.2 28 1065 15 10 00 15 25 00 =1023+259 07 41 05 48.7 115.2 -2.8 -36.9 900 1180 15 10 04 15 25 40 J1026+2542 07 41 45 48.7 115.4 -2.8 -36.8 32 1180 15 25 40 15 40 00 =1023+259 07 56 08 50.7 119.5 -2.5 -35.3 860 1290 15 25 44 15 40 40 J1026+2542 07 56 48 50.7 119.7 -2.5 -35.2 32 1290 15 40 40 15 55 00 =1023+259 08 11 10 52.6 124.0 -2.3 -33.4 860 1400 15 40 44 Schedule for JODRELL1 (Code Jb ) Page 3 Looking for changes in the jet structure of the z=5.3 blazar J1026+2542 UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Tue 28 May 2013 Day 148 --- 15 55 40 J1026+2542 08 11 50 52.7 124.2 -2.3 -33.3 32 1400 15 55 40 16 10 00 =1023+259 08 26 13 54.4 128.8 -2.0 -31.2 860 1510 15 55 44 16 10 40 J1026+2542 08 26 53 54.5 129.0 -2.0 -31.1 32 1510 16 10 40 16 25 00 =1023+259 08 41 15 56.1 133.9 -1.8 -28.6 860 1620 16 10 44 16 25 40 J1026+2542 08 41 55 56.1 134.2 -1.8 -28.4 32 1620 16 25 40 16 37 30 =1023+259 08 53 47 57.4 138.5 -1.6 -26.1 710 1711 16 25 44 16 38 00 J1026+2542 08 54 17 57.4 138.7 -1.5 -26.0 22 1711 16 38 00 16 40 00 =1023+259 08 56 18 57.6 139.5 -1.5 -25.6 120 1727 16 38 04 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess213.C1024 Matching groups in /usr/local/sched/catalogs/freq.dat: j1b6cm LO from Spencer 05Jun96, must be using Low patch Setup group: 2 Station: JODRELL1 Total bit rate: 1024 Format: MKIV1:2 Bits per sample: 2 Sample rate: 32.000 Number of channels: 16 DBE type: Speedup factor: 0.50 Disk used to record data. 1st LO= 4840.00 4840.00 4840.00 4840.00 4840.00 4840.00 4840.00 4840.00 4840.00 4840.00 4840.00 4840.00 4840.00 4840.00 4840.00 4840.00 Net SB= L L U U L L U U L L U U L L U U IF SB = U U U U U U U U U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP BBC = 2 1 2 1 4 3 4 3 6 5 6 5 8 7 8 7 BBC SB= L L U U L L U U L L U U L L U U IF = 2N 1N 2N 1N 2N 1N 2N 1N 2N 1N 2N 1N 2N 1N 2N 1N The following frequency sets based on these setups were used. Frequency Set: 3 Setup file default. LO sum= 4942.49 4942.49 4942.49 4942.49 4974.49 4974.49 4974.49 4974.49 5006.49 5006.49 5006.49 5006.49 5038.49 5038.49 5038.49 5038.49 BBC fr= 102.49 102.49 102.49 102.49 134.49 134.49 134.49 134.49 166.49 166.49 166.49 166.49 198.49 198.49 198.49 198.49 Bandwd= 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 16.00 Matching frequency sets: 3 Track assignments are: track1= 2, 10, 18, 26, 3, 11, 19, 27, 66, 74, 82, 90, 67, 75, 83, 91 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * J0854+2006 08 51 57.250618 * 08 54 48.874930 08 55 34.926297 0.11 0851+202 20 17 58.41733 * 20 06 30.64078 20 03 19.70618 0.10 J0854+20 /usr/local/sched/catalogs/sources.vlba OJ287 rfc_2012b Petrov, 2012, unpublished 191510 observations * J1026+2542 10 23 36.838101 * 10 26 23.621134 10 27 08.790481 0.82 1023+259 25 58 16.54945 * 25 42 59.42891 25 38 51.41702 0.48 /usr/local/sched/catalogs/sources.vlba rfc_2012b Petrov, 2012, unpublished 157 observations * J1159+2914 11 56 57.786211 * 11 59 31.833912 12 00 14.091594 0.11 1156+295 29 31 25.73868 * 29 14 43.82678 29 10 16.72303 0.10 J1159+29 /usr/local/sched/catalogs/sources.vlba rfc_2012b Petrov, 2012, unpublished 64535 observations SOURCE SCAN SUMMARY FOR SOURCES LISTED ABOVE Scan hours are for recording scans only. Baseline hours are only counted for scans above horizon at both ends. Source Setup file Frequency sets Observing hours (duplicates not shown) Scan Baseline J0854+2006 sess213.C1024 1 2 3 4 5 6 7 8 9 12 13 14 0.200 18.200 J1026+2542 sess213.C1024 1 2 3 4 5 6 7 8 9 12 13 14 3.347 304.164 J1159+2914 sess213.C1024 1 2 3 4 5 6 7 8 9 12 13 14 0.200 18.200 EFFECT OF SOLAR CORONA 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) J0854+2006 63.3 J1026+2542 81.8 J1159+2914 99.0 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