COVER INFORMATION Station: HART (Code Hh ) Experiment: Does Cygnus A harbor a binary black hole? Exp. Code: EB064C Schedule Version: 1.00 Processed by SCHED version: 11.50 Development version 11.5. Started Apr. 2 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 C of EB064 at 1.3cm. It involves 17 antennas Jb2, EF, MC, Nt, O60, T6, Ur, Tr, Sr, Ys, Sv, Zc, Bd, Hh, Mh, Kt, Ky, and Ku and runs at a standard 1 Gbps continuum mode. Gaps between scans are adjusted to allow time for Tsys measurements on source and some pointing time every 1.5 hours, because the observation happen during sunrise at Effelsberg. Fringe finders are 2013+370 and BL Lac. Schedule for HART (Code Hh ) Page 2 Does Cygnus A harbor a binary black hole? 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 ---------------------------------------------------------------------------------------- --- Wed 7 Nov 2018 Day 311 --- Next scan frequencies: 22187.49 22187.49 22187.49 22187.49 22219.49 22219.49 22219.49 22219.49 22251.49 22251.49 22251.49 22251.49 22283.49 22283.49 22283.49 22283.49 Next BBC frequencies: 187.49 187.49 187.49 187.49 219.49 219.49 219.49 219.49 251.49 251.49 251.49 251.49 283.49 283.49 283.49 283.49 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 12 00 00 CYG-A 16 57 19 11.0 33.5 -3.0 0.0 0 0 12 00 00 12 10 00 --- 17 07 20 12.2 32.0 -2.9 0.0 600 77 12 00 01 12 10 30 CYG-A 17 07 50 12.3 31.9 -2.9 0.0 9 77 12 10 30 12 20 30 --- 17 17 52 13.4 30.4 -2.7 0.0 600 155 12 10 31 12 21 30 2013+370 17 18 52 14.4 35.0 -3.0 0.0 25 155 12 21 30 12 26 30 --- 17 23 53 15.0 34.2 -2.9 0.0 300 193 12 21 31 12 27 30 CYG-A 17 24 53 14.2 29.3 -2.6 0.0 25 193 12 27 30 12 37 30 --- 17 34 55 15.3 27.7 -2.4 0.0 600 271 12 27 31 12 38 00 CYG-A 17 35 25 15.3 27.6 -2.4 0.0 9 271 12 38 00 12 48 00 --- 17 45 27 16.4 25.9 -2.2 0.0 600 348 12 38 01 12 48 30 CYG-A 17 45 57 16.4 25.9 -2.2 0.0 9 348 12 48 30 12 58 30 --- 17 55 58 17.4 24.1 -2.1 0.0 600 425 12 48 31 12 59 00 CYG-A 17 56 28 17.4 24.1 -2.1 0.0 9 425 12 59 00 13 09 00 --- 18 06 30 18.3 22.3 -1.9 0.0 600 502 12 59 01 13 09 30 CYG-A 18 07 00 18.3 22.2 -1.9 0.0 9 502 13 09 30 13 19 30 --- 18 17 02 19.2 20.4 -1.7 0.0 600 580 13 09 31 13 20 00 CYG-A 18 17 32 19.2 20.3 -1.7 0.0 9 580 13 20 00 13 30 00 --- 18 27 34 19.9 18.4 -1.5 0.0 600 657 13 20 01 ---------- 5-min gap for pointing ---------- 13 36 00 2013+370 18 33 35 22.4 21.9 -1.7 0.0 325 657 13 36 00 13 41 00 --- 18 38 35 22.8 20.9 -1.6 0.0 300 696 13 36 01 13 42 45 CYG-A 18 40 21 20.8 16.0 -1.3 0.0 70 696 13 42 45 13 52 45 --- 18 50 22 21.4 14.1 -1.2 0.0 600 773 13 42 46 13 53 15 CYG-A 18 50 52 21.4 14.0 -1.2 0.0 9 773 13 53 15 14 03 15 --- 19 00 54 21.9 12.0 -1.0 0.0 600 850 13 53 16 Schedule for HART (Code Hh ) Page 3 Does Cygnus A harbor a binary black hole? 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 ---------------------------------------------------------------------------------------- --- Wed 7 Nov 2018 Day 311 --- 14 03 45 CYG-A 19 01 24 21.9 11.9 -1.0 0.0 9 850 14 03 45 14 13 45 --- 19 11 26 22.4 9.9 -0.8 0.0 600 927 14 03 46 14 14 15 CYG-A 19 11 56 22.4 9.8 -0.8 0.0 9 927 14 14 15 14 24 15 --- 19 21 57 22.7 7.8 -0.6 0.0 600 1005 14 14 16 14 24 45 CYG-A 19 22 28 22.7 7.7 -0.6 0.0 9 1005 14 24 45 14 34 45 --- 19 32 29 23.0 5.7 -0.5 0.0 600 1082 14 24 46 14 35 15 CYG-A 19 32 59 23.0 5.6 -0.5 0.0 9 1082 14 35 15 14 45 15 --- 19 43 01 23.2 3.5 -0.3 0.0 600 1159 14 35 16 14 45 45 CYG-A 19 43 31 23.2 3.4 -0.3 0.0 9 1159 14 45 45 14 55 45 --- 19 53 33 23.3 1.4 -0.1 0.0 600 1237 14 45 46 ---------- 5-min gap for pointing ---------- 15 02 45 BLLAC 20 00 34 16.1 23.1 -2.0 0.0 332 1237 15 02 45 15 07 45 --- 20 05 35 16.5 22.3 -2.0 0.0 300 1275 15 02 46 15 11 00 CYG-A 20 08 50 23.3 358.2 0.1 0.0 105 1275 15 11 00 15 21 00 --- 20 18 51 23.2 356.1 0.3 0.0 600 1353 15 11 01 15 21 30 CYG-A 20 19 21 23.2 356.0 0.3 0.0 9 1353 15 21 30 15 31 30 --- 20 29 23 23.0 354.0 0.5 0.0 600 1430 15 21 31 15 32 00 CYG-A 20 29 53 23.0 353.9 0.5 0.0 9 1430 15 32 00 15 42 00 --- 20 39 55 22.7 351.8 0.7 0.0 600 1507 15 32 01 15 42 30 CYG-A 20 40 25 22.7 351.7 0.7 0.0 9 1507 15 42 30 15 52 30 --- 20 50 27 22.3 349.7 0.8 0.0 600 1584 15 42 31 15 53 00 CYG-A 20 50 57 22.3 349.6 0.8 0.0 9 1584 15 53 00 16 03 00 --- 21 00 58 21.8 347.6 1.0 0.0 600 1662 15 53 01 16 03 30 CYG-A 21 01 28 21.8 347.5 1.0 0.0 9 1662 16 03 30 16 13 30 --- 21 11 30 21.3 345.6 1.2 0.0 600 1739 16 03 31 16 14 00 CYG-A 21 12 00 21.3 345.5 1.2 0.0 9 1739 16 14 00 16 24 00 --- 21 22 02 20.7 343.6 1.4 0.0 600 1816 16 14 01 ---------- 5-min gap for pointing ---------- 16 33 40 BLLAC 21 31 43 21.3 6.3 -0.5 0.0 492 1816 16 33 40 16 38 40 --- 21 36 44 21.5 5.3 -0.4 0.0 300 1855 16 33 41 Schedule for HART (Code Hh ) Page 4 Does Cygnus A harbor a binary black hole? 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 ---------------------------------------------------------------------------------------- --- Wed 7 Nov 2018 Day 311 --- 16 43 10 CYG-A 21 41 15 19.3 340.0 1.7 0.0 181 1855 16 43 10 16 53 10 --- 21 51 17 18.5 338.1 1.9 0.0 600 1932 16 43 11 16 53 40 CYG-A 21 51 47 18.5 338.1 1.9 0.0 9 1932 16 53 40 17 03 10 --- 22 01 19 17.6 336.4 2.0 0.0 570 2006 16 53 41 17 03 40 CYG-A 22 01 49 17.6 336.3 2.0 0.0 9 2006 17 03 40 17 13 10 --- 22 11 20 16.7 334.6 2.2 0.0 570 2079 17 03 41 17 13 40 CYG-A 22 11 50 16.6 334.6 2.2 0.0 9 2079 17 13 40 17 23 10 --- 22 21 22 15.7 333.0 2.4 0.0 570 2153 17 13 41 17 23 40 CYG-A 22 21 52 15.6 332.9 2.4 0.0 9 2153 17 23 40 17 33 10 --- 22 31 23 14.6 331.3 2.5 0.0 570 2226 17 23 41 17 33 40 CYG-A 22 31 54 14.6 331.2 2.5 0.0 9 2226 17 33 40 17 43 10 --- 22 41 25 13.5 329.7 2.7 0.0 570 2299 17 33 41 17 43 40 CYG-A 22 41 55 13.5 329.7 2.7 0.0 9 2299 17 43 40 17 53 10 --- 22 51 27 12.4 328.2 2.9 0.0 570 2373 17 43 41 17 55 00 2013+370 22 53 17 16.9 328.2 2.6 0.0 75 2373 17 55 00 18 00 00 --- 22 58 18 16.3 327.4 2.7 0.0 300 2411 17 55 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess318.K1024 --- 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: 7 Station: HART Total bit rate: 1024 Format: VDIF 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= 22000.00 22000.00 22000.00 22000.00 22000.00 22000.00 22000.00 22000.00 22000.00 22000.00 22000.00 22000.00 22000.00 22000.00 22000.00 22000.00 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 = A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 The following frequency sets based on these setups were used. Frequency Set: 13 Setup file default. Used with PCAL = off LO sum= 22187.49 22187.49 22187.49 22187.49 22219.49 22219.49 22219.49 22219.49 22251.49 22251.49 22251.49 22251.49 22283.49 22283.49 22283.49 22283.49 BBC fr= 187.49 187.49 187.49 187.49 219.49 219.49 219.49 219.49 251.49 251.49 251.49 251.49 283.49 283.49 283.49 283.49 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: 13 Track assignments are: track1= 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 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 44.440790 * 19 59 28.356468 20 00 06.403562 0.80 J1959+4044 40 35 46.36227 * 40 44 02.09608 40 47 28.04324 0.53 * CYG-A /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc J1959+40 GSFC 2016a X/S astro solution, 27 observations. 1957+405 1957+404 1957+40 * 2013+370 20 13 37.014517 * 20 15 28.729803 20 16 09.808313 0.09 J2015+3710 37 01 44.45878 * 37 10 59.51466 37 14 46.86455 0.12 /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 131 observations. VR422201 22 00 39.362504 * 22 02 43.291371 22 03 29.868689 0.01 J2202+4216 42 02 08.59075 * 42 16 39.97988 42 22 23.44095 0.00 * BLLAC /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc 2200+420 GSFC 2016a X/S astro solution, 52189 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 sess318.K1024 1 2 3 4 5 6 7 8 9 10 13 14 + 4.783 594.274 2013+370 sess318.K1024 1 2 3 4 5 6 7 8 9 10 13 14 + 0.250 32.000 BLLAC sess318.K1024 1 2 3 4 5 6 7 8 9 10 13 14 + 0.167 24.083 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 91.4 2013+370 93.2 BLLAC 114.3 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