COVER INFORMATION Station: HART (Code Hh ) Experiment: Does Cygnus A harbor a binary black hole? Exp. Code: EB064A 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 A of EB064 at 1.3cm. It involves 16 antennas Jb2, EF, MC, Nt, O60, T6, Ur, Tr, 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 ---------------------------------------------------------------------------------------- --- Tue 13 Mar 2018 Day 72 --- 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 04 30 00 CYG-A 17 43 48 16.2 26.2 -2.3 0.0 0 0 04 30 00 04 40 00 --- 17 53 50 17.2 24.5 -2.1 0.0 600 77 04 30 01 04 40 30 CYG-A 17 54 20 17.2 24.4 -2.1 0.0 9 77 04 40 30 04 50 30 --- 18 04 21 18.1 22.7 -1.9 0.0 600 155 04 40 31 04 51 30 2013+370 18 05 22 19.8 27.2 -2.2 0.0 25 155 04 51 30 04 56 30 --- 18 10 22 20.3 26.3 -2.1 0.0 300 193 04 51 31 04 57 30 CYG-A 18 11 23 18.7 21.4 -1.8 0.0 25 193 04 57 30 05 07 30 --- 18 21 24 19.5 19.6 -1.6 0.0 600 271 04 57 31 05 08 00 CYG-A 18 21 54 19.5 19.5 -1.6 0.0 9 271 05 08 00 05 18 00 --- 18 31 56 20.3 17.6 -1.5 0.0 600 348 05 08 01 05 18 30 CYG-A 18 32 26 20.3 17.5 -1.5 0.0 9 348 05 18 30 05 28 30 --- 18 42 28 20.9 15.6 -1.3 0.0 600 425 05 18 31 05 29 00 CYG-A 18 42 58 21.0 15.5 -1.3 0.0 9 425 05 29 00 05 39 00 --- 18 52 59 21.5 13.6 -1.1 0.0 600 502 05 29 01 05 39 30 CYG-A 18 53 30 21.6 13.5 -1.1 0.0 9 502 05 39 30 05 49 30 --- 19 03 31 22.0 11.5 -0.9 0.0 600 580 05 39 31 05 50 00 CYG-A 19 04 01 22.1 11.4 -0.9 0.0 9 580 05 50 00 06 00 00 --- 19 14 03 22.5 9.4 -0.8 0.0 600 657 05 50 01 ---------- 5-min gap for pointing ---------- 06 06 45 BLLAC 19 20 49 12.1 29.5 -2.7 0.0 317 657 06 06 45 06 11 45 --- 19 25 50 12.7 28.7 -2.6 0.0 300 696 06 06 46 06 13 30 CYG-A 19 27 35 22.9 6.7 -0.5 0.0 16 696 06 13 30 06 23 30 --- 19 37 37 23.1 4.6 -0.4 0.0 600 773 06 13 31 06 24 00 CYG-A 19 38 07 23.1 4.5 -0.4 0.0 9 773 06 24 00 06 34 00 --- 19 48 08 23.3 2.5 -0.2 0.0 600 850 06 24 01 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 ---------------------------------------------------------------------------------------- --- Tue 13 Mar 2018 Day 72 --- 06 34 30 CYG-A 19 48 39 23.3 2.4 -0.2 0.0 9 850 06 34 30 06 44 30 --- 19 58 40 23.3 0.3 -0.0 0.0 600 927 06 34 31 06 45 00 CYG-A 19 59 10 23.3 0.2 -0.0 0.0 9 927 06 45 00 06 55 00 --- 20 09 12 23.3 358.1 0.2 0.0 600 1005 06 45 01 06 55 30 CYG-A 20 09 42 23.3 358.0 0.2 0.0 9 1005 06 55 30 07 05 30 --- 20 19 44 23.2 356.0 0.3 0.0 600 1082 06 55 31 07 06 00 CYG-A 20 20 14 23.2 355.9 0.3 0.0 9 1082 07 06 00 07 16 00 --- 20 30 15 23.0 353.8 0.5 0.0 600 1159 07 06 01 07 16 30 CYG-A 20 30 45 22.9 353.7 0.5 0.0 9 1159 07 16 30 07 26 30 --- 20 40 47 22.7 351.7 0.7 0.0 600 1237 07 16 31 ---------- 5-min gap for pointing ---------- 07 32 30 2013+370 20 46 48 26.5 353.2 0.5 0.0 325 1237 07 32 30 07 37 30 --- 20 51 49 26.3 352.1 0.6 0.0 300 1275 07 32 31 07 38 30 CYG-A 20 52 49 22.2 349.2 0.9 0.0 25 1275 07 38 30 07 48 30 --- 21 02 51 21.8 347.3 1.0 0.0 600 1353 07 38 31 07 49 00 CYG-A 21 03 21 21.7 347.2 1.1 0.0 9 1353 07 49 00 07 59 00 --- 21 13 22 21.2 345.2 1.2 0.0 600 1430 07 49 01 07 59 30 CYG-A 21 13 53 21.2 345.1 1.2 0.0 9 1430 07 59 30 08 09 30 --- 21 23 54 20.5 343.2 1.4 0.0 600 1507 07 59 31 08 10 00 CYG-A 21 24 24 20.5 343.1 1.4 0.0 9 1507 08 10 00 08 20 00 --- 21 34 26 19.8 341.2 1.6 0.0 600 1584 08 10 01 08 20 30 CYG-A 21 34 56 19.8 341.1 1.6 0.0 9 1584 08 20 30 08 30 30 --- 21 44 58 19.0 339.3 1.7 0.0 600 1662 08 20 31 08 31 00 CYG-A 21 45 28 19.0 339.2 1.8 0.0 9 1662 08 31 00 08 41 00 --- 21 55 29 18.1 337.4 1.9 0.0 600 1739 08 31 01 08 41 30 CYG-A 21 55 59 18.1 337.3 1.9 0.0 9 1739 08 41 30 08 51 30 --- 22 06 01 17.2 335.5 2.1 0.0 600 1816 08 41 31 ---------- 5-min gap for pointing ---------- 09 01 10 BLLAC 22 15 43 21.7 357.6 0.2 0.0 492 1816 09 01 10 09 06 10 --- 22 20 43 21.6 356.6 0.3 0.0 300 1855 09 01 11 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 ---------------------------------------------------------------------------------------- --- Tue 13 Mar 2018 Day 72 --- 09 11 15 CYG-A 22 25 49 15.2 332.2 2.4 0.0 215 1855 09 11 15 09 21 15 --- 22 35 51 14.2 330.6 2.6 0.0 600 1932 09 11 16 09 21 45 CYG-A 22 36 21 14.1 330.5 2.6 0.0 9 1932 09 21 45 09 31 45 --- 22 46 22 13.0 329.0 2.8 0.0 600 2010 09 21 46 09 32 15 CYG-A 22 46 52 12.9 328.9 2.8 0.0 9 2010 09 32 15 09 42 15 --- 22 56 54 11.7 327.4 2.9 0.0 600 2087 09 32 16 09 42 45 CYG-A 22 57 24 11.7 327.3 3.0 0.0 9 2087 09 42 45 09 52 45 --- 23 07 26 10.4 325.8 3.1 0.0 600 2164 09 42 46 09 53 15 CYG-A 23 07 56 10.4 325.8 3.1 0.0 9 2164 09 53 15 10 03 15 --- 23 17 57 9.1 324.4 3.3 H 0.0 0 2241 09 53 16 10 03 45 CYG-A 23 18 28 9.0 324.3 3.3 H 0.0 9 2241 10 03 45 10 13 45 --- 23 28 29 7.7 322.9 3.5 D 0.0 0 2319 10 03 46 10 15 45 2013+370 23 30 30 12.1 322.4 3.2 0.0 85 2319 10 15 45 10 20 45 --- 23 35 30 11.4 321.6 3.3 0.0 300 2357 10 15 46 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess118.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 3 11 3 11 5 13 5 13 7 15 7 15 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 B2 C1 B2 C1 B2 C1 B2 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 44.440804 * 19 59 28.356482 20 00 04.757678 0.80 J1959+4044 40 35 46.36249 * 40 44 02.09630 40 46 50.96105 0.53 * CYG-A /home/guest/rmc/SCHED/sched11.4/catalogs/sources.gsfc 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 07.902462 0.13 J2015+3710 37 01 44.45895 * 37 10 59.51482 37 14 10.43395 0.18 /home/guest/rmc/SCHED/sched11.4/catalogs/sources.gsfc GSFC 2015a astro solution, unpublished 131 observations. VR422201 22 00 39.362505 * 22 02 43.291372 22 03 26.529269 0.00 J2202+4216 42 02 08.59077 * 42 16 39.97990 42 21 46.43178 0.00 * BLLAC /home/guest/rmc/SCHED/sched11.4/catalogs/sources.gsfc 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 sess118.K1024 1 2 3 4 5 6 7 8 9 10 13 14 + 4.800 492.300 2013+370 sess118.K1024 1 2 3 4 5 6 7 8 9 10 13 14 + 0.250 27.833 BLLAC sess118.K1024 1 2 3 4 5 6 7 8 9 10 13 14 + 0.167 22.667 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 65.2 2013+370 60.8 BLLAC 49.6 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