COVER INFORMATION Station: ZELENCHK (Code Zc ) Experiment: A second active nucleus in Cygnus A? Exp. Code: EB060C Schedule Version: 2.00 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 6cm. It involves 15 antennas Jb2, Ef, Wb, Mc, Nt, On85, T6, Ur, Tr, Ys, Sv, Zc, Bd, Hh, and Ir and runs at a standard 1 Gbps continuum mode. There are two gaps to allow some pointings at Effelsberg. Fringe finders are 2013+370 and BL Lac. Schedule for ZELENCHK (Code Zc ) 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 ---------------------------------------------------------------------------------------- --- Fri 9 Jun 2017 Day 160 --- Next scan frequencies: 4942.49 4942.49 4942.49 4942.49 4974.49 4974.49 4974.49 4974.49 5006.49 5006.49 5006.49 5006.49 5038.49 5038.49 5038.49 5038.49 Next BBC frequencies: 442.49 442.49 442.49 442.49 474.49 474.49 474.49 474.49 506.49 506.49 506.49 506.49 538.49 538.49 538.49 538.49 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 00 00 CYG-A 18 00 06 67.7 447.3 -2.0 -72.2 0 0 22 00 00 22 10 00 --- 18 10 08 69.5 448.9 -1.8 -72.4 600 77 22 00 01 22 10 30 CYG-A 18 10 38 69.6 449.0 -1.8 -72.4 24 77 22 10 30 22 20 30 --- 18 20 39 71.4 450.7 -1.7 -72.4 600 154 22 10 31 22 21 30 2013+370 18 21 39 67.4 457.0 -1.9 -64.2 33 154 22 21 30 22 26 30 --- 18 26 40 68.3 458.2 -1.8 -63.8 300 192 22 21 31 22 27 30 CYG-A 18 27 40 72.7 452.0 -1.5 -72.3 33 192 22 27 30 22 37 30 --- 18 37 42 74.5 454.1 -1.4 -72.0 600 269 22 27 31 22 38 00 CYG-A 18 38 12 74.6 454.2 -1.4 -72.0 24 269 22 38 00 22 48 00 --- 18 48 14 76.4 456.6 -1.2 -71.3 600 346 22 38 01 22 48 30 CYG-A 18 48 44 76.5 456.7 -1.2 -71.2 24 346 22 48 30 22 58 30 --- 18 58 46 78.3 459.6 -1.0 -70.1 600 423 22 48 31 22 59 00 CYG-A 18 59 16 78.4 459.7 -1.0 -70.0 24 423 22 59 00 23 09 00 --- 19 09 17 80.1 463.4 -0.8 D -68.0 0 500 22 59 01 23 53 00 BLLAC 19 53 24 66.4 442.1 -2.2 -75.4 2582 500 23 53 00 23 58 00 --- 19 58 25 67.3 442.7 -2.1 -75.7 300 538 23 53 01 --- Sat 10 Jun 2017 Day 161 --- 00 42 00 CYG-A 20 42 33 81.6 612.7 0.7 D 65.5 2512 538 00 42 00 00 52 00 --- 20 52 34 79.9 617.3 0.9 68.4 0 615 00 42 01 00 52 30 CYG-A 20 53 04 79.8 617.5 0.9 68.5 24 615 00 52 30 01 02 30 --- 21 03 06 78.0 620.9 1.1 70.3 600 692 00 52 31 01 03 00 CYG-A 21 03 36 77.9 621.1 1.1 70.4 24 692 01 03 00 01 13 00 --- 21 13 38 76.1 623.9 1.2 71.4 600 769 01 03 01 01 13 30 CYG-A 21 14 08 76.0 624.0 1.2 71.5 24 769 01 13 30 01 23 30 --- 21 24 09 74.2 626.3 1.4 72.1 600 846 01 13 31 Schedule for ZELENCHK (Code Zc ) 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 ---------------------------------------------------------------------------------------- --- Sat 10 Jun 2017 Day 161 --- ---------- 6-min gap for pointing ---------- 01 29 30 2013+370 21 30 10 74.5 611.3 1.2 59.2 318 846 01 29 30 01 34 30 --- 21 35 11 73.7 613.1 1.3 60.2 300 885 01 29 31 01 35 30 CYG-A 21 36 11 72.0 628.7 1.6 72.4 20 885 01 35 30 01 45 30 --- 21 46 13 70.2 630.5 1.8 72.4 600 962 01 35 31 01 46 00 CYG-A 21 46 43 70.1 630.5 1.8 72.4 24 962 01 46 00 01 56 00 --- 21 56 45 68.3 632.2 1.9 72.3 600 1038 01 46 01 01 56 30 CYG-A 21 57 15 68.2 632.2 2.0 72.3 24 1038 01 56 30 02 06 30 --- 22 07 16 66.4 633.8 2.1 72.1 600 1115 01 56 31 02 07 00 CYG-A 22 07 46 66.3 633.8 2.1 72.0 24 1115 02 07 00 02 17 00 --- 22 17 48 64.5 635.2 2.3 71.7 600 1192 02 07 01 02 17 30 CYG-A 22 18 18 64.4 635.3 2.3 71.7 24 1192 02 17 30 02 27 30 --- 22 28 20 62.6 636.7 2.5 71.2 600 1269 02 17 31 02 28 00 CYG-A 22 28 50 62.6 636.7 2.5 71.2 24 1269 02 28 00 02 38 00 --- 22 38 52 60.8 638.0 2.6 70.7 600 1346 02 28 01 02 38 30 CYG-A 22 39 22 60.7 638.1 2.7 70.7 24 1346 02 38 30 02 48 30 --- 22 49 23 58.9 639.4 2.8 70.2 600 1423 02 38 31 02 50 00 2013+370 22 50 54 60.2 630.8 2.6 65.0 59 1423 02 50 00 02 55 00 --- 22 55 54 59.2 631.6 2.7 65.0 300 1462 02 50 01 02 56 30 CYG-A 22 57 25 57.5 640.4 3.0 69.7 59 1462 02 56 30 03 06 30 --- 23 07 26 55.7 641.6 3.1 69.1 600 1538 02 56 31 03 07 00 CYG-A 23 07 56 55.6 641.6 3.1 69.0 24 1538 03 07 00 03 17 00 --- 23 17 58 53.8 642.8 3.3 68.4 600 1615 03 07 01 03 17 30 CYG-A 23 18 28 53.7 642.9 3.3 68.3 24 1615 03 17 30 03 27 30 --- 23 28 30 52.0 644.1 3.5 67.6 600 1692 03 17 31 03 28 00 CYG-A 23 29 00 51.9 644.1 3.5 67.6 24 1692 03 28 00 03 38 00 --- 23 39 01 50.1 645.3 3.6 66.9 600 1769 03 28 01 03 38 30 CYG-A 23 39 32 50.1 645.3 3.7 66.8 24 1769 03 38 30 03 48 30 --- 23 49 33 48.3 646.5 3.8 66.1 600 1846 03 38 31 Schedule for ZELENCHK (Code Zc ) Page 4 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 10 Jun 2017 Day 161 --- 03 49 00 CYG-A 23 50 03 48.2 646.6 3.8 66.0 24 1846 03 49 00 03 59 00 --- 00 00 05 46.5 647.7 4.0 65.3 600 1923 03 49 01 03 59 30 CYG-A 00 00 35 46.4 647.8 4.0 65.2 24 1923 03 59 30 04 09 30 --- 00 10 37 44.7 648.9 4.2 64.4 600 2000 03 59 31 ---------- 6-min gap for pointing ---------- 04 18 30 BLLAC 00 19 38 65.3 638.6 2.3 75.0 481 2000 04 18 30 04 23 30 --- 00 24 39 64.4 639.2 2.4 74.7 300 2038 04 18 31 04 28 40 CYG-A 00 29 50 41.4 651.1 4.5 62.8 251 2038 04 28 40 04 38 40 --- 00 39 51 39.8 652.3 4.7 61.9 600 2115 04 28 41 04 39 10 CYG-A 00 40 21 39.7 652.4 4.7 61.8 24 2115 04 39 10 04 48 50 --- 00 50 03 38.1 653.5 4.8 61.0 580 2190 04 39 11 04 49 20 CYG-A 00 50 33 38.0 653.6 4.8 60.9 24 2190 04 49 20 04 59 00 --- 01 00 15 36.4 654.7 5.0 60.0 580 2264 04 49 21 04 59 30 CYG-A 01 00 45 36.3 654.7 5.0 60.0 24 2264 04 59 30 05 09 10 --- 01 10 26 34.7 655.9 5.2 59.1 580 2338 04 59 31 05 09 40 CYG-A 01 10 56 34.6 655.9 5.2 59.0 24 2338 05 09 40 05 19 20 --- 01 20 38 33.1 657.1 5.3 58.1 580 2413 05 09 41 05 19 50 CYG-A 01 21 08 33.0 657.2 5.4 58.0 24 2413 05 19 50 05 29 30 --- 01 30 50 31.4 658.3 5.5 57.1 580 2487 05 19 51 05 30 00 CYG-A 01 31 20 31.4 658.4 5.5 57.0 24 2487 05 30 00 05 39 40 --- 01 41 01 29.8 659.6 5.7 56.0 580 2562 05 30 01 05 40 10 CYG-A 01 41 31 29.8 659.6 5.7 56.0 24 2562 05 40 10 05 49 50 --- 01 51 13 28.2 660.8 5.9 55.0 580 2636 05 40 11 05 50 20 CYG-A 01 51 43 28.2 660.9 5.9 54.9 24 2636 05 50 20 06 00 00 --- 02 01 25 26.7 662.1 6.0 53.9 580 2710 05 50 21 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess217.C1024 Matching groups in /home/guest/rmc/SCHED/sched11.4/catalogs/freq_RDBE.dat: kvzr_c Added by Des Small, 24 February 2012 Setup group: 3 Station: ZELENCHK Total bit rate: 1024 Format: MARK5B Bits per sample: 2 Sample rate: 32.000 Number of channels: 16 DBE type: Speedup factor: 1.00 Disk used to record data. 1st LO= 4500.00 4500.00 4500.00 4500.00 4500.00 4500.00 4500.00 4500.00 4500.00 4500.00 4500.00 4500.00 4500.00 4500.00 4500.00 4500.00 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 = 1 9 1 9 2 10 2 10 3 11 3 11 4 12 4 12 BBC SB= L L U U L L U U L L U U L L U U IF = A B A B A B A B A B A B A B A B The following frequency sets based on these setups were used. Frequency Set: 11 Setup file default. Used with PCAL = off LO sum= 4942.49 4942.49 4942.49 4942.49 4974.49 4974.49 4974.49 4974.49 5006.49 5006.49 5006.49 5006.49 5038.49 5038.49 5038.49 5038.49 BBC fr= 442.49 442.49 442.49 442.49 474.49 474.49 474.49 474.49 506.49 506.49 506.49 506.49 538.49 538.49 538.49 538.49 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: 11 12 13 Track assignments are: track1= 18, 26, 2, 10, 20, 28, 4, 12, 22, 30, 6, 14, 24, 32, 8, 16 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 05.762364 0.80 J1959+4044 40 35 46.36249 * 40 44 02.09630 40 46 52.22193 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 08.681654 0.13 J2015+3710 37 01 44.45895 * 37 10 59.51482 37 14 09.76368 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 27.100969 0.00 J2202+4216 42 02 08.59077 * 42 16 39.97990 42 21 31.67676 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.C1024 1 2 3 4 5 6 7 8 9 10 11 14 6.789 591.086 2013+370 sess217.C1024 1 2 3 4 5 6 7 8 9 10 11 14 0.250 25.083 BLLAC sess217.C1024 1 2 3 4 5 6 7 8 9 10 11 14 0.167 16.333 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 105.4 2013+370 106.1 BLLAC 86.7 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