COVER INFORMATION Station: JODRELL1 (Code Jb ) Experiment: Looking for changes in the jet structure of the z=5.3 blazar J1026+2542 Exp. Code: EF024B 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: 18 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 4 Jun 2013 Day 155 --- Next scan frequencies: 1610.49 1610.49 1610.49 1610.49 1642.49 1642.49 1642.49 1642.49 1674.49 1674.49 1674.49 1674.49 1706.49 1706.49 1706.49 1706.49 Next BBC frequencies: 100.49 100.49 100.49 100.49 132.49 132.49 132.49 132.49 164.49 164.49 164.49 164.49 196.49 196.49 196.49 196.49 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 10 00 J0854+2006 04 53 09 33.4 101.3 -4.0 -38.7 0 0 12 10 00 12 22 00 =0851+202 05 05 11 35.2 104.0 -3.8 -38.2 720 92 12 10 04 12 24 10 J1026+2542 05 07 21 26.2 81.5 -5.3 -41.0 24 92 12 24 10 12 38 30 =1023+259 05 21 44 28.3 84.2 -5.1 -41.3 860 202 12 24 14 12 39 10 J1026+2542 05 22 24 28.4 84.3 -5.1 -41.4 33 202 12 39 10 12 53 30 =1023+259 05 36 46 30.5 87.1 -4.8 -41.5 860 312 12 39 14 12 54 10 J1026+2542 05 37 26 30.6 87.3 -4.8 -41.5 32 312 12 54 10 13 08 30 =1023+259 05 51 49 32.8 90.1 -4.6 -41.6 860 422 12 54 14 13 09 10 J1026+2542 05 52 29 32.9 90.3 -4.6 -41.6 32 422 13 09 10 13 23 30 =1023+259 06 06 51 35.0 93.2 -4.3 -41.5 860 532 13 09 14 13 24 10 J1026+2542 06 07 31 35.1 93.3 -4.3 -41.5 32 532 13 24 10 13 38 30 =1023+259 06 21 54 37.3 96.3 -4.1 -41.3 860 643 13 24 14 13 39 10 J1026+2542 06 22 34 37.4 96.5 -4.1 -41.3 32 643 13 39 10 13 53 30 =1023+259 06 36 56 39.5 99.6 -3.8 -40.9 860 753 13 39 14 13 54 10 J1026+2542 06 37 36 39.6 99.7 -3.8 -40.9 32 753 13 54 10 14 08 30 =1023+259 06 51 59 41.7 103.0 -3.6 -40.3 860 863 13 54 14 14 09 10 J1026+2542 06 52 39 41.8 103.1 -3.6 -40.3 32 863 14 09 10 14 23 30 =1023+259 07 07 01 43.9 106.5 -3.3 -39.5 860 973 14 09 14 14 25 40 J1159+2914 07 09 11 33.0 84.2 -4.9 -43.0 25 973 14 25 40 14 37 40 =1156+295 07 21 13 34.8 86.5 -4.7 -43.2 720 1065 14 25 44 14 40 00 J1026+2542 07 23 34 46.2 110.6 -3.1 -38.4 29 1065 14 40 00 14 55 00 =1023+259 07 38 36 48.3 114.6 -2.8 -37.1 900 1180 14 40 04 14 55 40 J1026+2542 07 39 16 48.4 114.7 -2.8 -37.1 32 1180 14 55 40 15 10 00 =1023+259 07 53 39 50.3 118.8 -2.6 -35.6 860 1290 14 55 44 15 10 40 J1026+2542 07 54 19 50.4 118.9 -2.5 -35.5 32 1290 15 10 40 15 25 00 =1023+259 08 08 41 52.3 123.2 -2.3 -33.7 860 1400 15 10 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 4 Jun 2013 Day 155 --- 15 25 40 J1026+2542 08 09 21 52.3 123.4 -2.3 -33.7 32 1400 15 25 40 15 40 00 =1023+259 08 23 44 54.1 128.0 -2.1 -31.6 860 1510 15 25 44 15 40 40 J1026+2542 08 24 24 54.2 128.2 -2.0 -31.5 32 1510 15 40 40 15 55 00 =1023+259 08 38 46 55.8 133.1 -1.8 -29.0 860 1620 15 40 44 15 55 40 J1026+2542 08 39 26 55.9 133.3 -1.8 -28.9 32 1620 15 55 40 16 10 00 =1023+259 08 53 49 57.4 138.5 -1.6 -26.1 860 1731 15 55 44 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess213.L1024 Matching groups in /usr/local/sched/catalogs/freq.dat: j1b18cm LO from Parry 23Jan97, must be using Low patch ****** Only 224.98 of 256.00 MHz total bandwidth is within the IFs in the setup file before any FREQ or DOPPLER shifts. 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= 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 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= 1610.49 1610.49 1610.49 1610.49 1642.49 1642.49 1642.49 1642.49 1674.49 1674.49 1674.49 1674.49 1706.49 1706.49 1706.49 1706.49 BBC fr= 100.49 100.49 100.49 100.49 132.49 132.49 132.49 132.49 164.49 164.49 164.49 164.49 196.49 196.49 196.49 196.49 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 34.834906 0.11 0851+202 20 17 58.41733 * 20 06 30.64078 20 03 19.98596 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 08.675890 0.82 1023+259 25 58 16.54945 * 25 42 59.42891 25 38 51.89512 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 13.978915 0.11 1156+295 29 31 25.73868 * 29 14 43.82678 29 10 17.59403 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.L1024 1 2 3 4 5 6 7 8 11 12 0.200 15.600 J1026+2542 sess213.L1024 1 2 3 4 5 6 7 8 11 12 3.356 261.733 J1159+2914 sess213.L1024 1 2 3 4 5 6 7 8 11 12 0.200 15.600 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 56.6 J1026+2542 75.4 J1159+2914 93.0 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