COVER INFORMATION Station: VLBA_LA (Code La ) Experiment: RadioAstron AGN polarization imaging Exp. Code: gg081g 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 VLBA_LA (Code La ) 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 ---------------------------------------------------------------------------------------- --- Thu 9 Mar 2017 Day 68 --- ---------- K-band VLBI scans. Space segment 01: 0823+033 with VLBA ---------- Next scan frequencies: 22220.00 22220.00 22252.00 22252.00 22284.00 22284.00 22316.00 22316.00 Next BBC frequencies: 720.00 720.00 752.00 752.00 784.00 784.00 816.00 816.00 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 02 00 00 0823+033 06 02 51 43.4 126.2 -2.4 -41.0 0 0 02 00 00 02 10 00 --- 06 12 53 45.0 128.8 -2.2 -39.3 600 77 02 00 01 02 10 30 0823+033 06 13 23 45.1 129.0 -2.2 -39.2 24 77 02 10 30 02 20 00 --- 06 22 54 46.6 131.6 -2.1 -37.4 570 151 02 10 31 02 20 30 0823+033 06 23 24 46.7 131.8 -2.1 -37.3 24 151 02 20 30 02 30 00 --- 06 32 56 48.1 134.6 -1.9 -35.3 570 224 02 20 31 02 30 30 0823+033 06 33 26 48.1 134.8 -1.9 -35.2 24 224 02 30 30 02 40 00 --- 06 42 58 49.5 137.8 -1.7 -33.1 570 298 02 30 31 02 40 30 0823+033 06 43 28 49.5 137.9 -1.7 -33.0 24 298 02 40 30 02 50 00 --- 06 52 59 50.8 141.1 -1.6 -30.7 570 371 02 40 31 02 50 30 0823+033 06 53 29 50.9 141.2 -1.6 -30.6 24 371 02 50 30 03 00 00 --- 07 03 01 52.0 144.6 -1.4 -28.1 570 444 02 50 31 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 ./gg081g_freq.dat: v1cm_b3 Setup group: 6 Station: VLBA_LA Total bit rate: 1024 Format: VDIF Bits per sample: 2 Sample rate: 64.000 Number of channels: 8 DBE type: RDBE_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 21500.00 21500.00 21500.00 21500.00 21500.00 21500.00 21500.00 21500.00 Net SB= U U U U U U U U IF SB = U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 2 3 4 5 6 7 8 BBC SB= U U U U U U U U IF = B D B D B D B D VLBA FE= omit 1cm omit 1cm VLBA Synth= 9.1 6.1 12.4 The following frequency sets based on these setups were used. See the crd files for VLBA legacy system setups and pcal detection details. Frequency Set: 2 Setup file default. Used with PCAL = 1MHz LO sum= 22220.00 22220.00 22252.00 22252.00 22284.00 22284.00 22316.00 22316.00 BBC fr= 720.00 720.00 752.00 752.00 784.00 784.00 816.00 816.00 Bandwd= 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 VLBA legacy crd files using 4 channels based on RDBE channels: 3 4 5 6 CRD fr= 759.99 759.99 791.99 791.99 CRD bw= 16.00 16.00 16.00 16.00 Matching frequency sets: 2 3 4 5 6 7 8 9 10 11 Track assignments are: track1= 1, 2, 3, 4, 5, 6, 7, 8 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * FAKERA 11 57 21.769299 * 12 00 00.000000 12 00 59.999094 0.00 85 16 41.77889 * 85 00 00.00000 84 54 13.39687 0.00 From catalog imbedded in main SCHED input file. fake circumpolar target for a TS to look at * 0823+033 08 23 13.540326 * 08 25 50.338355 08 26 44.689444 0.00 J0825+0309 03 19 15.40169 * 03 09 24.51995 03 05 47.49040 0.00 ./gg081g_sources.radioastron AGN, MASIV, rfc_2013d Petrov, 2013, unpublished 57025 observations, RA-AO3-04, R 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 FAKERA ra1cm2.set 12 0.958 0.000 0823+033 ra1cm2.set 1 2 0.958 52.708 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) FAKERA 99.5 0823+033 137.1 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