COVER INFORMATION Station: TIANMA65 (Code T6 ) Experiment: A second active nucleus in Cygnus A? Exp. Code: EB060B Schedule Version: 3.00 Processed by SCHED version: 11.40 Release 11.4. March 14, 2015 PI: Uwe Bach Address: Max-Planck-Institut fuer Radioastronomie Auf dem Huegel 69 53121 Bonn Germany Phone: 0049-2257-301-168 EMAIL: ubach@mpifr-bonn.mpg.de Fax: 0049-2257-301-106 Phone during observation: 0049-2257-301-155 Observing mode: Notes: Use 2013+370 as fring tracer and BL Lac as 2nd calibrators COVER LETTER: This is the schedule for epoch B of EB060 at 18cm. It involves 14 antennas Jb2, Ef, Wb, Mc, On85, T6, Ur, Tr, Sv, Zc, Bd, Hh, Ir, and Ro and runs at a standard 1 Gbps continuum mode. Fringe finders are 2013+370 and BL Lac. Schedule for TIANMA65 (Code T6 ) Page 2 A second active nucleus in Cygnus A? 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 ---------------------------------------------------------------------------------------- --- Sat 27 May 2017 Day 147 --- Next scan frequencies: 1610.49 1610.49 1610.49 1610.49 1642.49 1642.49 1642.49 1642.49 1674.49 1674.49 1674.49 1674.49 1706.49 1706.49 1706.49 1706.49 Next BBC frequencies: 659.51 659.51 659.51 659.51 627.51 627.51 627.51 627.51 595.51 595.51 595.51 595.51 563.51 563.51 563.51 563.51 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 22 30 00 CYG-A 22 57 13 53.3 -62.1 3.0 90.9 0 0 22 30 00 22 40 00 --- 23 07 14 51.4 -62.2 3.1 89.3 600 77 22 30 01 22 40 30 CYG-A 23 07 44 51.3 -62.1 3.1 89.2 28 77 22 40 30 22 50 30 --- 23 17 46 49.4 -62.1 3.3 87.6 600 154 22 40 31 22 51 30 2013+370 23 18 46 52.1 -67.9 3.0 85.4 46 154 22 51 30 22 56 30 --- 23 23 47 51.1 -67.8 3.1 84.8 300 192 22 51 31 22 57 30 CYG-A 23 24 47 48.1 -62.0 3.4 86.5 46 192 22 57 30 23 07 30 --- 23 34 49 46.2 -61.8 3.6 85.0 600 269 22 57 31 23 08 00 CYG-A 23 35 19 46.1 -61.7 3.6 85.0 28 269 23 08 00 23 18 00 --- 23 45 20 44.2 -61.5 3.8 83.5 600 346 23 08 01 23 18 30 CYG-A 23 45 51 44.1 -61.5 3.8 83.5 28 346 23 18 30 23 28 30 --- 23 55 52 42.2 -61.1 3.9 82.0 600 423 23 18 31 23 29 00 CYG-A 23 56 22 42.1 -61.1 3.9 82.0 28 423 23 29 00 23 39 00 --- 00 06 24 40.2 -60.7 4.1 80.6 600 500 23 29 01 23 39 30 CYG-A 00 06 54 40.1 -60.7 4.1 80.5 28 500 23 39 30 23 49 30 --- 00 16 56 38.3 -60.3 4.3 79.2 600 577 23 39 31 23 50 00 CYG-A 00 17 26 38.2 -60.3 4.3 79.1 28 577 23 50 00 23 59 59 --- 00 27 27 36.3 -59.8 4.5 77.7 599 654 23 50 01 --- Sun 28 May 2017 Day 148 --- 00 00 30 CYG-A 00 27 57 36.2 -59.8 4.5 77.7 28 654 00 00 30 00 10 30 --- 00 37 59 34.4 -59.2 4.6 76.3 600 731 00 00 31 00 11 00 CYG-A 00 38 29 34.3 -59.2 4.6 76.3 28 731 00 11 00 00 21 00 --- 00 48 31 32.4 -58.6 4.8 74.9 600 808 00 11 01 00 21 30 CYG-A 00 49 01 32.4 -58.6 4.8 74.9 28 808 00 21 30 00 31 30 --- 00 59 03 30.5 -58.0 5.0 73.6 600 885 00 21 31 Schedule for TIANMA65 (Code T6 ) Page 3 A second active nucleus in Cygnus A? 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 ---------------------------------------------------------------------------------------- --- Sun 28 May 2017 Day 148 --- 00 32 00 CYG-A 00 59 33 30.4 -58.0 5.0 73.5 28 885 00 32 00 00 42 00 --- 01 09 34 28.6 -57.3 5.2 72.2 600 962 00 32 01 00 44 00 BLLAC 01 11 35 51.2 -59.6 3.1 91.1 27 962 00 44 00 00 49 00 --- 01 16 35 50.3 -59.6 3.2 90.2 300 1000 00 44 01 00 51 00 CYG-A 01 18 36 27.0 -56.7 5.3 71.0 25 1000 00 51 00 01 01 00 --- 01 28 37 25.2 -56.0 5.5 69.7 600 1077 00 51 01 01 01 30 CYG-A 01 29 07 25.1 -56.0 5.5 69.6 28 1077 01 01 30 01 11 30 --- 01 39 09 23.4 -55.2 5.7 68.3 600 1154 01 01 31 01 12 00 CYG-A 01 39 39 23.3 -55.2 5.7 68.2 28 1154 01 12 00 01 22 00 --- 01 49 41 21.5 -54.4 5.8 66.9 600 1231 01 12 01 01 22 30 CYG-A 01 50 11 21.4 -54.4 5.8 66.8 28 1231 01 22 30 01 32 30 --- 02 00 13 19.7 -53.5 6.0 65.4 600 1308 01 22 31 01 33 00 CYG-A 02 00 43 19.6 -53.5 6.0 65.4 28 1308 01 33 00 01 43 00 --- 02 10 44 17.9 -52.6 6.2 64.0 600 1385 01 33 01 01 43 30 CYG-A 02 11 14 17.8 -52.6 6.2 63.9 28 1385 01 43 30 01 53 30 --- 02 21 16 16.1 -51.7 6.4 62.6 600 1462 01 43 31 01 54 00 CYG-A 02 21 46 16.0 -51.7 6.4 62.5 28 1462 01 54 00 02 04 00 --- 02 31 48 14.4 -50.7 6.5 61.1 600 1538 01 54 01 02 04 30 CYG-A 02 32 18 14.3 -50.7 6.5 61.0 28 1538 02 04 30 02 14 30 --- 02 42 19 12.6 -49.7 6.7 59.6 600 1615 02 04 31 02 15 30 2013+370 02 43 20 13.4 -54.4 6.5 60.9 49 1615 02 15 30 02 20 30 --- 02 48 20 12.5 -53.9 6.5 60.3 300 1654 02 15 31 02 21 30 CYG-A 02 49 21 11.5 -49.0 6.8 58.6 48 1654 02 21 30 02 31 30 --- 02 59 22 9.9 -48.0 7.0 57.2 600 1731 02 21 31 02 32 00 CYG-A 02 59 52 9.8 -47.9 7.0 57.1 28 1731 02 32 00 02 42 00 --- 03 09 54 8.2 -46.9 7.2 55.6 600 1808 02 32 01 02 42 30 CYG-A 03 10 24 8.1 -46.8 7.2 55.6 28 1808 02 42 30 02 52 30 --- 03 20 26 6.6 -45.7 7.3 D 54.1 0 1885 02 42 31 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess217.L1024 --- 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: 12 Station: TIANMA65 Total bit rate: 1024 Format: MARK5B Bits per sample: 2 Sample rate: 32.000 Number of channels: 16 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 2270.00 2270.00 2270.00 2270.00 2270.00 2270.00 2270.00 2270.00 2270.00 2270.00 2270.00 2270.00 2270.00 2270.00 2270.00 2270.00 Net SB= L L U U L L U U L L U U L L U U IF SB = L L L L L L L L L L L L L L L L Pol. = RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 9 1 9 3 11 3 11 5 13 5 13 7 15 7 15 BBC SB= U U L L U U L L U U L L U U L L IF = A2 C1 A2 C1 A2 C1 A2 C1 B2 D1 B2 D1 B2 D1 B2 D1 The following frequency sets based on these setups were used. Frequency Set: 6 Setup file default. Used with PCAL = off LO sum= 1610.49 1610.49 1610.49 1610.49 1642.49 1642.49 1642.49 1642.49 1674.49 1674.49 1674.49 1674.49 1706.49 1706.49 1706.49 1706.49 BBC fr= 659.51 659.51 659.51 659.51 627.51 627.51 627.51 627.51 595.51 595.51 595.51 595.51 563.51 563.51 563.51 563.51 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: 6 Track assignments are: track1= 2, 10, 18, 26, 4, 12, 20, 28, 6, 14, 22, 30, 8, 16, 24, 32 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) CYGNUS-A 19 57 44.440804 * 19 59 28.356482 20 00 05.412198 0.80 J1959+4044 40 35 46.36249 * 40 44 02.09630 40 46 48.72390 0.53 * CYG-A /home/guest/rmc/SCHED/sched11.4/catalogs/sources.gsfc.2015feb J1959+40 GSFC 2015a astro solution, unpublished 27 observations. 1957+405 1957+404 * 2013+370 20 13 37.014511 * 20 15 28.729797 20 16 08.323309 0.13 J2015+3710 37 01 44.45895 * 37 10 59.51482 37 14 06.42135 0.18 /home/guest/rmc/SCHED/sched11.4/catalogs/sources.gsfc.2015feb GSFC 2015a astro solution, unpublished 131 observations. VR422201 22 00 39.362505 * 22 02 43.291372 22 03 26.639813 0.00 J2202+4216 42 02 08.59077 * 42 16 39.97990 42 21 29.20552 0.00 * BLLAC /home/guest/rmc/SCHED/sched11.4/catalogs/sources.gsfc.2015feb 2200+420 GSFC 2015a astro solution, unpublished 51226 observations. J2202+42 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 CYG-A sess217.L1024 1 2 3 4 5 6 7 8 9 12 13 14 6.933 476.482 2013+370 sess217.L1024 1 2 3 4 5 6 7 8 9 12 13 14 0.250 19.583 BLLAC sess217.L1024 1 2 3 4 5 6 7 8 9 12 13 0.167 12.000 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) CYG-A 99.6 2013+370 99.3 BLLAC 78.7 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