COVER INFORMATION Station: DSS63 (Code Ro ) Experiment: RadioAstron AGN polarization imaging Exp. Code: gg081f Schedule Version: 1.00 Processed by SCHED version: 11.40 Release 11.4. March 14, 2015 PI: Jose L. Gomez Address: Instituto de Astrofisica de Andalucia-CSIC Glorieta de la Astronomia E-18008 Granada, Spain Phone: +79165452842 EMAIL: jlgomez@iaa.es, alobanov@mpifr-bonn.mpg.de Fax: Phone during observation: +79165452842 Observing mode: K-band,Q-band, dual-pol Notes: K-band, Radioastron-compatible frequency setup P-CAL is ON Tsys is ON auto-level (AGC) is ON Schedule for DSS63 (Code Ro ) Page 2 RadioAstron AGN polarization imaging 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 ---------------------------------------------------------------------------------------- --- Wed 8 Mar 2017 Day 67 --- ---------- K-band VLBI scans. Ground-only observations: 0851+202 with EVN+VLBA ---------- Next scan frequencies: 22236.00 22236.00 22236.00 22236.00 22268.00 22268.00 22268.00 22268.00 22300.00 22300.00 22300.00 22300.00 22332.00 22332.00 22332.00 22332.00 Next BBC frequencies: 322.00 322.00 322.00 322.00 354.00 354.00 354.00 354.00 386.00 386.00 386.00 386.00 418.00 418.00 418.00 418.00 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 23 00 00 0851+202 09 50 21 66.5 213.8 0.9 26.8 0 0 23 00 00 23 10 00 --- 10 00 23 65.4 218.8 1.1 30.5 600 77 23 00 04 23 10 12 0851+202 10 00 35 65.4 218.9 1.1 30.6 2 77 23 10 12 23 20 00 --- 10 10 24 64.1 223.5 1.2 33.9 588 152 23 10 16 23 20 12 0851+202 10 10 36 64.1 223.6 1.2 34.0 2 152 23 20 12 23 30 00 --- 10 20 26 62.8 227.8 1.4 36.9 588 227 23 20 16 23 30 12 0851+202 10 20 38 62.7 227.9 1.4 36.9 2 227 23 30 12 23 40 00 --- 10 30 28 61.3 231.8 1.6 39.5 588 303 23 30 16 23 40 12 0851+202 10 30 40 61.3 231.8 1.6 39.6 2 303 23 40 12 23 50 00 --- 10 40 29 59.8 235.4 1.7 41.8 588 378 23 40 16 23 50 12 0851+202 10 40 41 59.7 235.5 1.7 41.9 2 378 23 50 12 23 59 59 --- 10 50 31 58.2 238.7 1.9 43.8 587 453 23 50 16 --- Thu 9 Mar 2017 Day 68 --- 00 00 12 0851+202 10 50 43 58.1 238.8 1.9 43.9 2 453 00 00 12 00 10 00 --- 11 00 32 56.5 241.8 2.1 45.6 588 528 00 00 16 00 10 12 0851+202 11 00 44 56.5 241.9 2.1 45.6 2 528 00 10 12 00 20 00 --- 11 10 34 54.8 244.7 2.2 47.1 588 604 00 10 16 00 20 12 0851+202 11 10 46 54.8 244.8 2.2 47.1 2 604 00 20 12 00 30 00 --- 11 20 36 53.1 247.4 2.4 48.4 588 679 00 20 16 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: ra1cm2.set Matching groups in ./gg081f_freq.dat: ro1cm LO from Harbison, e-mail 03/02/97 other values guesses Setup group: 4 Station: DSS63 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= 21914.00 21914.00 21914.00 21914.00 21914.00 21914.00 21914.00 21914.00 21914.00 21914.00 21914.00 21914.00 21914.00 21914.00 21914.00 21914.00 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: 10 Setup file default. Used with PCAL = 1MHz LO sum= 22236.00 22236.00 22236.00 22236.00 22268.00 22268.00 22268.00 22268.00 22300.00 22300.00 22300.00 22300.00 22332.00 22332.00 22332.00 22332.00 BBC fr= 322.00 322.00 322.00 322.00 354.00 354.00 354.00 354.00 386.00 386.00 386.00 386.00 418.00 418.00 418.00 418.00 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: 10 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) * 0851+202 08 51 57.250618 * 08 54 48.874930 08 55 48.278939 0.00 J0854+2006 20 17 58.41733 * 20 06 30.64078 20 02 24.57393 0.00 OJ287 ./gg081f_sources.radioastron AGN, rfc_2013d Petrov, 2013, unpublished 213710 observations, RA-AO3-04, RA-AO3- 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 0851+202 ra1cm2.set 1 2 3 4 5 6 7 8 9 10 11 1.473 114.818 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) 0851+202 142.1 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