COVER INFORMATION Station: URUMQI (Code Ur ) 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 URUMQI (Code Ur ) 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: 310.49 310.49 310.49 310.49 342.49 342.49 342.49 342.49 374.49 374.49 374.49 374.49 406.49 406.49 406.49 406.49 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 10 51 06 56.4 235.1 1.9 39.3 0 0 12 10 00 12 22 00 =0851+202 11 03 08 54.6 238.9 2.1 41.4 720 92 12 10 04 12 24 10 J1026+2542 11 05 18 70.6 206.7 0.6 21.2 93 92 12 24 10 12 38 30 =1023+259 11 19 41 69.2 215.2 0.9 27.7 860 203 12 24 14 12 39 10 J1026+2542 11 20 21 69.1 215.6 0.9 28.0 38 203 12 39 10 12 53 30 =1023+259 11 34 43 67.5 223.2 1.1 33.4 860 313 12 39 14 12 54 10 J1026+2542 11 35 23 67.4 223.5 1.1 33.6 38 313 12 54 10 13 08 30 =1023+259 11 49 46 65.5 230.1 1.4 38.1 860 423 12 54 14 13 09 10 J1026+2542 11 50 26 65.4 230.3 1.4 38.3 38 423 13 09 10 13 23 30 =1023+259 12 04 48 63.3 236.1 1.6 41.9 860 533 13 09 14 13 24 10 J1026+2542 12 05 28 63.2 236.3 1.6 42.1 38 533 13 24 10 13 38 30 =1023+259 12 19 50 61.0 241.3 1.9 44.9 860 644 13 24 14 13 39 10 J1026+2542 12 20 31 60.9 241.6 1.9 45.1 38 644 13 39 10 13 53 30 =1023+259 12 34 53 58.5 246.0 2.1 47.3 860 754 13 39 14 13 54 10 J1026+2542 12 35 33 58.4 246.2 2.1 47.4 38 754 13 54 10 14 08 30 =1023+259 12 49 55 56.0 250.2 2.4 49.2 860 864 13 54 14 14 09 10 J1026+2542 12 50 35 55.9 250.4 2.4 49.3 38 864 14 09 10 14 23 30 =1023+259 13 04 58 53.4 254.0 2.6 50.7 860 974 14 09 14 14 25 40 J1159+2914 13 07 08 70.4 228.6 1.1 38.6 93 974 14 25 40 14 37 40 =1156+295 13 19 10 68.7 234.3 1.3 42.5 720 1067 14 25 44 14 40 00 J1026+2542 13 21 31 50.5 257.7 2.9 51.9 101 1067 14 40 00 14 55 00 =1023+259 13 36 33 47.8 260.9 3.2 52.6 900 1182 14 40 04 14 55 40 J1026+2542 13 37 13 47.7 261.0 3.2 52.7 38 1182 14 55 40 15 10 00 =1023+259 13 51 35 45.1 263.9 3.4 53.2 860 1292 14 55 44 15 10 40 J1026+2542 13 52 16 45.0 264.0 3.4 53.2 38 1292 15 10 40 15 25 00 =1023+259 14 06 38 42.4 266.7 3.7 53.5 860 1403 15 10 44 Schedule for URUMQI (Code Ur ) 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 14 07 18 42.3 266.8 3.7 53.5 38 1403 15 25 40 15 40 00 =1023+259 14 21 40 39.7 269.4 3.9 53.6 860 1513 15 25 44 15 40 40 J1026+2542 14 22 21 39.5 269.5 3.9 53.6 38 1513 15 40 40 15 55 00 =1023+259 14 36 43 36.9 271.9 4.2 53.6 860 1623 15 40 44 15 55 40 J1026+2542 14 37 23 36.8 272.0 4.2 53.6 38 1623 15 55 40 16 10 00 =1023+259 14 51 45 34.2 274.4 4.4 53.4 860 1733 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: ur18cm update L.Xiang 9Feb05 Setup group: 8 Station: URUMQI Total bit rate: 1024 Format: MARK5B Bits per sample: 2 Sample rate: 32.000 Number of channels: 16 DBE type: Speedup factor: 1.00 Disk used to record data. 1st LO= 1300.00 1300.00 1300.00 1300.00 1300.00 1300.00 1300.00 1300.00 1300.00 1300.00 1300.00 1300.00 1300.00 1300.00 1300.00 1300.00 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: 11 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= 310.49 310.49 310.49 310.49 342.49 342.49 342.49 342.49 374.49 374.49 374.49 374.49 406.49 406.49 406.49 406.49 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: 11 Track assignments are: track1= 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32 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