COVER INFORMATION Station: GBTS (Code Gt ) Experiment: RadioAstron Imaging of high-redshift quasars Exp. Code: eg094c Schedule Version: 2.00 Processed by SCHED version: 11.40 Release 11.4. March 14, 2015 PI: Leonid Gurvits Address: Joint Institute for VLBI in Europe Oude Hoogeveensedijk 4 7991 PD Dwingeloo, The Netherlands Phone: +31 521 596 514 EMAIL: lgurvits@jive.eu Fax: +31 521 596 539 Phone during observation: +31 521 596 514 Observing mode: L-band, dual-pol Notes: C/L-band, Radioastron-compatible frequency setup P-CAL is ON, Tsys is ON, auto-level (AGC) is ON Mk5 raw data should be transferred to JIVE first, from JIVE raw data should be e-transferred to ASC/Moscow Schedule for GBTS (Code Gt ) Page 2 RadioAstron Imaging of high-redshift quasars 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 13 Jun 2017 Day 164 --- ---------- The following is to control the GBTS tracking station recorder ---------- Next scan frequencies: 1668.00 1668.00 1668.00 1668.00 Next BBC frequencies: 178.00 178.00 178.00 178.00 Next scan bandwidths: 16.00 16.00 16.00 16.00 05 55 00 FAKERA 18 02 37 38.2 -6.5 6.0 85.5 0 0 05 55 00 06 08 00 --- 18 15 39 37.9 -6.4 6.2 82.3 780 25 05 55 01 06 08 30 FAKERA 18 16 10 37.9 -6.4 6.3 82.2 10 25 06 08 30 06 21 00 --- 18 28 42 37.6 -6.4 6.5 79.1 750 49 06 08 31 06 21 30 FAKERA 18 29 12 37.6 -6.4 6.5 79.0 10 49 06 21 30 06 34 00 --- 18 41 44 37.4 -6.3 6.7 75.9 750 73 06 21 31 06 34 30 FAKERA 18 42 14 37.4 -6.3 6.7 75.8 10 73 06 34 30 06 47 00 --- 18 54 46 37.1 -6.2 6.9 72.7 750 97 06 34 31 06 47 30 FAKERA 18 55 16 37.1 -6.2 6.9 72.6 10 97 06 47 30 07 00 00 --- 19 07 48 36.8 -6.1 7.1 69.5 750 121 06 47 31 07 00 30 FAKERA 19 08 18 36.8 -6.1 7.1 69.4 10 121 07 00 30 07 13 00 --- 19 20 50 36.5 -6.0 7.3 66.4 750 145 07 00 31 07 13 30 FAKERA 19 21 20 36.5 -6.0 7.3 66.2 10 145 07 13 30 07 26 00 --- 19 33 52 36.3 -5.8 7.6 63.2 750 169 07 13 31 07 26 30 FAKERA 19 34 22 36.3 -5.8 7.6 63.1 10 169 07 26 30 07 39 00 --- 19 46 54 36.0 -5.6 7.8 60.1 750 193 07 26 31 07 39 30 FAKERA 19 47 25 36.0 -5.6 7.8 59.9 10 193 07 39 30 07 52 00 --- 19 59 57 35.8 -5.4 8.0 56.9 750 217 07 39 31 07 52 30 FAKERA 20 00 27 35.8 -5.4 8.0 56.8 10 217 07 52 30 08 05 00 --- 20 12 59 35.5 -5.2 8.2 53.8 750 241 07 52 31 ---------- The following is to control the GBTS tracking station recorder ---------- 12 00 00 FAKERA 00 08 37 33.4 0.2-11.9 -1.8 14080 241 12 00 00 12 15 00 --- 00 23 40 33.4 0.6-11.6 -5.4 900 270 12 00 01 12 15 30 FAKERA 00 24 10 33.4 0.6-11.6 -5.5 10 270 12 15 30 12 30 00 --- 00 38 42 33.4 1.0-11.4 -8.9 870 298 12 15 31 12 30 30 FAKERA 00 39 12 33.4 1.0-11.4 -9.0 10 298 12 30 30 12 45 00 --- 00 53 45 33.5 1.4-11.1 -12.4 870 326 12 30 31 Schedule for GBTS (Code Gt ) Page 3 RadioAstron Imaging of high-redshift quasars 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 13 Jun 2017 Day 164 --- 12 45 30 FAKERA 00 54 15 33.5 1.4-11.1 -12.5 10 326 12 45 30 13 00 00 --- 01 08 47 33.6 1.8-10.9 -15.9 870 354 12 45 31 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: ra18cm2.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= 1490.00 1490.00 1490.00 1490.00 Net SB= U L U L IF SB = U U U U Pol. = LCP LCP RCP RCP BBC = 1 1 2 2 BBC SB= U L U L IF = A A B B The following frequency sets based on these setups were used. Frequency Set: 8 Setup file default. Used with PCAL = off LO sum= 1668.00 1668.00 1668.00 1668.00 BBC fr= 178.00 178.00 178.00 178.00 Bandwd= 16.00 16.00 16.00 16.00 Matching frequency sets: 8 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 48.239640 0.00 85 16 41.77889 * 85 00 00.00000 84 54 33.97442 0.00 From catalog imbedded in main SCHED input file. fake circumpolar target for a TS to look at * 1226+023 12 26 33.245835 * 12 29 06.699731 12 29 59.980993 0.00 J1229+0203 02 19 43.30547 * 02 03 08.59797 01 57 26.28704 0.00 3C273B ./eg094c_sources.radioastron 3C273 AGN, rfc_2013d Petrov, 2013, unpublished 32011 observations, RA-AO4-07, RA-AO3-0 * 1351-018 13 51 32.032818 * 13 54 06.895322 13 55 01.179202 0.00 J1354-0206 -01 51 20.07716 *-02 06 03.19066 -02 11 04.39310 0.00 ./eg094c_sources.radioastron AGN, HIGHz, rfc_2013d Petrov, 2013, unpublished 22569 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 ra18cm2.set 8 3.067 0.000 1226+023 ra6cm2.set 3 4 5 9 10 11 12 13 0.242 5.809 ra18cm2.set 1 2 6 7 14 0.408 2.275 1351-018 ra6cm2.set 3 4 5 9 10 11 12 13 6.608 84.198 ra18cm2.set 1 2 6 7 14 6.608 43.359 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 67.6 1226+023 103.5 1351-018 124.4 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