COVER INFORMATION Station: MEDICINA (Code Mc ) 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 MEDICINA (Code Mc ) 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: 342.49 342.49 342.49 342.49 374.49 374.49 374.49 374.49 406.49 406.49 406.49 406.49 438.49 438.49 438.49 438.49 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 05 51 27 44.9 467.5 -3.1 -46.4 0 0 12 40 00 12 52 00 =0851+202 06 03 29 46.9 470.3 -2.9 -45.4 720 46 12 40 04 12 54 10 J1026+2542 06 05 40 34.8 446.8 -4.4 -52.2 94 46 12 54 10 13 08 30 =1023+259 06 20 02 37.4 449.3 -4.1 -52.3 860 101 12 54 14 13 09 10 J1026+2542 06 20 42 37.5 449.4 -4.1 -52.3 37 101 13 09 10 13 23 30 =1023+259 06 35 05 40.1 452.0 -3.9 -52.2 860 156 13 09 14 13 24 10 J1026+2542 06 35 45 40.2 452.1 -3.9 -52.2 37 156 13 24 10 13 38 30 =1023+259 06 50 07 42.8 454.7 -3.6 -52.0 860 211 13 24 14 13 39 10 J1026+2542 06 50 47 42.9 454.9 -3.6 -52.0 37 211 13 39 10 13 53 30 =1023+259 07 05 10 45.4 457.7 -3.4 -51.6 860 266 13 39 14 13 54 10 J1026+2542 07 05 50 45.5 457.8 -3.4 -51.6 37 266 13 54 10 14 08 30 =1023+259 07 20 12 48.1 460.7 -3.1 -51.0 860 321 13 54 14 14 09 10 J1026+2542 07 20 52 48.2 460.9 -3.1 -51.0 37 321 14 09 10 14 23 30 =1023+259 07 35 14 50.7 464.1 -2.9 -50.1 860 376 14 09 14 14 24 10 J1026+2542 07 35 55 50.8 464.2 -2.9 -50.1 37 376 14 24 10 14 38 30 =1023+259 07 50 17 53.3 467.6 -2.6 -48.9 860 431 14 24 14 14 39 10 J1026+2542 07 50 57 53.4 467.8 -2.6 -48.9 37 431 14 39 10 14 53 30 =1023+259 08 05 19 55.8 471.5 -2.4 -47.4 860 486 14 39 14 14 55 40 J1159+2914 08 07 30 42.1 448.1 -3.9 -54.7 94 486 14 55 40 15 07 40 =1156+295 08 19 32 44.2 450.2 -3.7 -54.7 720 532 14 55 44 15 10 00 J1026+2542 08 21 52 58.5 476.3 -2.1 -45.2 102 532 15 10 00 15 25 00 =1023+259 08 36 55 60.8 481.1 -1.8 -42.6 900 590 15 10 04 15 25 40 J1026+2542 08 37 35 60.9 481.3 -1.8 -42.5 37 590 15 25 40 15 40 00 =1023+259 08 51 57 63.1 486.6 -1.6 -39.4 860 645 15 25 44 15 40 40 J1026+2542 08 52 37 63.2 486.8 -1.6 -39.3 37 645 15 40 40 15 55 00 =1023+259 09 07 00 65.1 492.7 -1.3 -35.5 860 700 15 40 44 Schedule for MEDICINA (Code Mc ) 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 09 07 40 65.2 493.0 -1.3 -35.3 37 700 15 55 40 16 10 00 =1023+259 09 22 02 67.0 499.7 -1.1 -30.8 860 755 15 55 44 16 10 40 J1026+2542 09 22 42 67.1 500.0 -1.1 -30.5 37 755 16 10 40 16 25 00 =1023+259 09 37 04 68.6 507.6 -0.8 -25.0 860 810 16 10 44 16 25 40 J1026+2542 09 37 45 68.6 508.0 -0.8 -24.8 37 810 16 25 40 16 37 30 =1023+259 09 49 36 69.7 515.0 -0.6 -19.5 710 856 16 25 44 16 38 00 J1026+2542 09 50 07 69.7 515.3 -0.6 -19.3 27 856 16 38 00 16 40 00 =1023+259 09 52 07 69.8 516.5 -0.6 -18.4 120 863 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: mc6cm Values confirmed by E-mail A.Orfei (JFD 2Oct98) Setup group: 14 Station: MEDICINA Total bit rate: 512 Format: MKIV1:4 Bits per sample: 1 Sample rate: 32.000 Number of channels: 16 DBE type: Speedup factor: 1.00 Disk used to record data. 1st LO= 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 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: 5 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= 342.49 342.49 342.49 342.49 374.49 374.49 374.49 374.49 406.49 406.49 406.49 406.49 438.49 438.49 438.49 438.49 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: 5 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