COVER INFORMATION Station: GBTS (Code Gt ) Experiment: RadioAstron water maser imaging Exp. Code: ga038 Schedule Version: 1.00 Processed by SCHED version: 11.40 Release 11.4. March 14, 2015 PI: Alakoz Address: Astro Space Center Profsoyuznaya str. 98/32 117997 Moscow Phone: +79165452842 EMAIL: alexey.alakoz@gmail.com Fax: +74953332801 Phone during observation: +79165452842 Observing mode: K-band, dual-pol Notes: K-band, Radioastron-compatible frequency setup P-CAL is OFF Tsys is ON auto-level (AGC) is ON Schedule for GBTS (Code Gt ) Page 2 RadioAstron water maser 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 ---------------------------------------------------------------------------------------- --- Tue 15 Nov 2016 Day 320 --- ---------- The following is to control the GB tracking station recorder ---------- Next scan frequencies: 22228.00 22228.00 22228.00 22228.00 Next BBC frequencies: 728.00 728.00 728.00 728.00 Next scan bandwidths: 16.00 16.00 16.00 16.00 04 59 00 FAKERA 03 18 32 35.0 4.7 -8.7 -46.6 0 0 04 59 00 05 09 00 --- 03 28 33 35.2 4.9 -8.5 -49.0 600 19 04 59 01 ---------- The following is to control the GB tracking station recorder ---------- 05 40 00 FAKERA 03 59 38 35.7 5.4 -8.0 -56.5 1840 19 05 40 00 05 48 30 --- 04 08 10 35.9 5.6 -7.9 -58.5 510 36 05 40 01 05 50 15 FAKERA 04 09 55 35.9 5.6 -7.8 -59.0 85 36 05 50 15 05 58 45 --- 04 18 26 36.1 5.7 -7.7 -61.0 510 52 05 50 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 --- WARNING --- This group does not match an entry in the frequency catalog. This might be ok because the catalog is not complete. But be very careful to be sure that the setup is correct. Setup group: 14 Station: GBTS Total bit rate: 256 Format: MARK5B Bits per sample: 2 Sample rate: 32.000 Number of channels: 4 DBE type: Speedup factor: 1.00 Disk used to record data. 1st LO= 21500.00 21500.00 21500.00 21500.00 Net SB= U L U L IF SB = U U U U Pol. = LCP LCP RCP RCP BBC = 1 1 5 5 BBC SB= U L U L IF = A1 A1 B3 B3 The following frequency sets based on these setups were used. Frequency Set: 12 Setup file default. Used with PCAL = off LO sum= 22228.00 22228.00 22228.00 22228.00 BBC fr= 728.00 728.00 728.00 728.00 Bandwd= 16.00 16.00 16.00 16.00 Matching frequency sets: 12 14 Track assignments are: track1= 2, 4, 6, 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 35.820078 0.00 85 16 41.77889 * 85 00 00.00000 84 54 08.92490 0.00 From catalog imbedded in main SCHED input file. fake circumpolar target for a TS to look at * 0539-057 05 39 10.994611 * 05 41 38.083400 05 42 28.421449 0.00 -05 43 15.02787 *-05 41 49.42800 -05 41 26.20555 0.00 From catalog imbedded in main SCHED input file. List of calibrators from catalogue rfc_2016c * ORIONH2O 05 32 46.647965 * 05 35 14.125500 05 36 04.611244 0.00 ORION_H2O -05 24 29.93190 *-05 22 36.47500 -05 22 04.01886 0.00 ORION_KL ./ga038_sources.radioastron H2O maser; position from 2011ApJ739L..59H, RA-AO4-01, RA-AO2-08 * 0316+413 03 16 29.567283 * 03 19 48.160114 03 20 56.843889 0.00 J0319+4130 41 19 51.91847 * 41 30 42.10559 41 34 15.19465 0.00 3C84 ./ga038_sources.radioastron AGN, rfc_2013d Petrov, 2013, unpublished 15448 observations, RA-AO4-04, RA-AO3-0 * 0851+202 08 51 57.250618 * 08 54 48.874930 08 55 46.301659 0.00 J0854+2006 20 17 58.41733 * 20 06 30.64078 20 02 30.17659 0.00 OJ287 ./ga038_sources.radioastron AGN, rfc_2013d Petrov, 2013, unpublished 213710 observations, RA-AO4-06, RA-AO3- * 0420-014 04 20 43.539850 * 04 23 15.800727 04 24 08.035194 0.00 J0423-0120 -01 27 28.70027 *-01 20 33.06557 -01 18 19.55387 0.00 ./ga038_sources.radioastron AGN, rfc_2013d Petrov, 2013, unpublished 44901 observations, RA-AO3-04, RA-AO2-1 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 1.327 0.000 0539-057 ra1cm2.set 1 2 3 4 5 6 7 8 9 11 13 1.621 46.380 ORIONH2O ra1cm2.set 1 2 3 4 5 6 7 8 9 11 13 2.799 99.251 0316+413 ra1cm2.set 1 2 3 4 5 6 7 8 9 11 13 0.500 19.125 0851+202 ra1cm2.set 1 2 3 4 5 6 7 8 9 11 0.500 21.274 0420-014 ra1cm2.set 1 2 3 4 5 6 7 8 9 11 13 0.717 30.060 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 105.3 0539-057 138.0 ORIONH2O 139.4 0316+413 157.0 0851+202 102.4 0420-014 155.1 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