COVER INFORMATION Station: VLBA_MK (Code Mk ) Experiment: Global 7mm VLBI observations of Cygnus A Exp. Code: gb075b Schedule Version: 1.00 Processed by SCHED version: 11.30 Version 11.3 update 1. April 14, 2014 PI: Biagina Boccardi Address: Max Planck Institute for Radioastronomy Auf dem Huegel 69 Bonn, 53121 Germany Phone: +49 (0)228 525 366 EMAIL: bboccardi@mpifr-bonn.mpg.de Fax: +49-2257-301-106 Phone during observation: +49-2257-301-155 Observing mode: 1024-32-2 Notes: COVER LETTER: Schedule for VLBA_MK (Code Mk ) Page 2 Global 7mm VLBI observations of 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 19 Oct 2014 Day 292 --- Next scan frequencies: 43114.25 43114.25 43146.25 43146.25 43178.25 43178.25 43210.25 43210.25 Next BBC frequencies: 714.25 714.25 746.25 746.25 778.25 778.25 810.25 810.25 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 22 33 00 2013+370 14 04 27 9.6 53.8 -6.2 -72.4 0 0 22 33 00 22 36 00 --- 14 07 27 10.2 53.9 -6.1 -72.8 180 23 22 33 01 22 37 30 CYG-A 14 08 58 14.4 51.4 -5.9 -76.1 74 23 22 37 30 22 52 30 --- 14 24 00 17.2 52.0 -5.6 -78.4 900 139 22 37 31 22 54 00 CYG-A 14 25 30 17.5 52.1 -5.6 -78.6 84 139 22 54 00 22 59 00 --- 14 30 31 18.4 52.3 -5.5 -79.4 300 178 22 54 01 23 00 00 2013+370 14 31 31 14.8 55.2 -5.7 -76.2 44 178 23 00 00 23 03 00 --- 14 34 32 15.4 55.4 -5.7 -76.6 180 201 23 00 01 23 05 00 CYG-A 14 36 32 19.5 52.5 -5.4 -80.3 104 201 23 05 00 23 20 00 --- 14 51 35 22.4 52.9 -5.1 -82.6 900 317 23 05 01 23 21 00 CYG-A 14 52 35 22.5 53.0 -5.1 -82.7 54 317 23 21 00 23 26 00 --- 14 57 36 23.5 53.1 -5.0 -83.5 300 356 23 21 01 23 27 00 2013+370 14 58 36 20.1 56.4 -5.3 -79.9 45 356 23 27 00 23 30 00 --- 15 01 36 20.7 56.5 -5.2 -80.3 180 379 23 27 01 23 31 00 CYG-A 15 02 37 24.4 53.2 -5.0 -84.3 44 379 23 31 00 23 46 00 --- 15 17 39 27.3 53.5 -4.7 -86.6 900 495 23 31 01 23 47 00 CYG-A 15 18 39 27.5 53.5 -4.7 -86.8 54 495 23 47 00 23 55 00 --- 15 26 40 29.0 53.5 -4.6 -88.1 480 556 23 47 01 --- Mon 20 Oct 2014 Day 293 --- 00 00 00 CYG-A 15 31 41 29.9 53.6 -4.5 -88.9 294 556 00 00 00 00 04 00 --- 15 35 42 30.7 53.6 -4.4 -89.5 240 587 00 00 01 00 07 00 BLLAC 15 38 42 8.8 48.0 -6.4 -71.2 125 587 00 07 00 00 10 00 --- 15 41 43 9.4 48.2 -6.4 -71.7 180 611 00 07 01 00 23 00 2013+370 15 54 45 31.2 57.7 -4.4 -87.9 731 611 00 23 00 00 26 00 --- 15 57 46 31.8 57.8 -4.3 -88.3 180 634 00 23 01 00 28 00 CYG-A 15 59 46 35.2 53.4 -4.0 -93.5 106 634 00 28 00 00 43 00 --- 16 14 48 38.1 53.1 -3.8 -96.2 900 750 00 28 01 Schedule for VLBA_MK (Code Mk ) Page 3 Global 7mm VLBI observations of 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 ---------------------------------------------------------------------------------------- --- Mon 20 Oct 2014 Day 293 --- 00 44 00 CYG-A 16 15 48 38.3 53.1 -3.7 -96.3 54 750 00 44 00 00 50 00 --- 16 21 49 39.4 52.9 -3.6 -97.4 360 796 00 44 01 00 51 00 2013+370 16 22 50 36.8 57.7 -3.9 -92.1 46 796 00 51 00 00 54 00 --- 16 25 50 37.4 57.7 -3.8 -92.6 180 819 00 51 01 00 55 00 CYG-A 16 26 50 40.3 52.8 -3.6 -98.4 46 819 00 55 00 01 10 00 --- 16 41 53 43.1 52.1 -3.3 -101.3 900 935 00 55 01 01 11 00 CYG-A 16 42 53 43.3 52.1 -3.3 -101.5 54 935 01 11 00 01 16 00 --- 16 47 54 44.2 51.8 -3.2 -102.5 300 974 01 11 01 01 18 00 2013+370 16 49 54 42.1 57.2 -3.4 -96.5 107 974 01 18 00 01 21 00 --- 16 52 55 42.7 57.1 -3.4 -97.1 180 997 01 18 01 01 23 00 CYG-A 16 54 55 45.5 51.4 -3.1 -103.9 107 997 01 23 00 01 38 00 --- 17 09 57 48.3 50.3 -2.8 -107.2 900 1113 01 23 01 01 39 00 CYG-A 17 10 58 48.5 50.2 -2.8 -107.4 54 1113 01 39 00 01 44 00 --- 17 15 58 49.4 49.7 -2.7 -108.6 300 1152 01 39 01 01 46 00 2013+370 17 17 59 47.7 56.0 -3.0 -101.7 108 1152 01 46 00 01 49 00 --- 17 20 59 48.2 55.8 -2.9 -102.3 180 1175 01 46 01 01 51 00 CYG-A 17 23 00 50.6 49.0 -2.6 -110.2 108 1175 01 51 00 02 06 00 --- 17 38 02 53.3 47.3 -2.4 -114.1 900 1291 01 51 01 02 15 00 BLLAC 17 47 03 32.2 51.7 -4.3 -91.8 484 1291 02 15 00 02 18 00 --- 17 50 04 32.7 51.7 -4.2 -92.3 180 1314 02 15 01 02 27 00 2013+370 17 59 05 55.5 52.3 -2.3 -110.8 487 1314 02 27 00 02 30 00 --- 18 02 06 56.1 51.9 -2.2 -111.6 180 1337 02 27 01 02 31 00 CYG-A 18 03 06 57.5 43.4 -1.9 -121.4 46 1337 02 31 00 02 46 00 --- 18 18 09 59.8 40.4 -1.7 -126.4 900 1453 02 31 01 02 47 00 CYG-A 18 19 09 60.0 40.1 -1.7 -126.8 54 1453 02 47 00 02 59 00 --- 18 31 11 61.7 37.2 -1.5 -131.3 720 1546 02 47 01 03 07 00 2013+370 18 39 12 62.6 45.3 -1.6 -122.9 465 1546 03 07 00 03 10 00 --- 18 42 12 63.1 44.6 -1.6 -124.0 180 1569 03 07 01 03 11 00 CYG-A 18 43 13 63.4 33.8 -1.3 -136.3 45 1569 03 11 00 03 26 00 --- 18 58 15 65.2 28.8 -1.0 -143.3 900 1685 03 11 01 Schedule for VLBA_MK (Code Mk ) Page 4 Global 7mm VLBI observations of 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 ---------------------------------------------------------------------------------------- --- Mon 20 Oct 2014 Day 293 --- 03 27 00 2013+370 18 59 15 65.8 39.8 -1.3 -130.9 44 1685 03 27 00 03 30 00 --- 19 02 16 66.3 38.8 -1.2 -132.2 180 1708 03 27 01 03 31 00 CYG-A 19 03 16 65.8 26.9 -0.9 -145.8 44 1708 03 31 00 03 46 00 --- 19 18 18 67.2 20.7 -0.7 -153.9 900 1824 03 31 01 03 47 00 CYG-A 19 19 19 67.3 20.3 -0.7 -154.5 54 1824 03 47 00 03 52 00 --- 19 24 19 67.7 18.0 -0.6 -157.4 300 1863 03 47 01 03 55 00 2013+370 19 27 20 69.6 28.8 -0.8 -145.3 164 1863 03 55 00 03 58 00 --- 19 30 20 69.9 27.3 -0.8 -147.1 180 1886 03 55 01 03 59 00 CYG-A 19 31 21 68.1 14.7 -0.5 -161.6 44 1886 03 59 00 04 14 00 --- 19 46 23 68.8 7.1 -0.2 -171.1 900 2002 03 59 01 04 15 00 CYG-A 19 47 23 68.8 6.6 -0.2 -171.8 54 2002 04 15 00 04 23 00 --- 19 55 24 69.0 2.4 -0.1 -177.0 480 2064 04 15 01 04 32 00 BLLAC 20 04 26 56.3 41.3 -2.0 -122.7 502 2064 04 32 00 04 35 00 --- 20 07 26 56.8 40.8 -1.9 -123.7 180 2087 04 32 01 04 44 00 2013+370 20 16 28 72.6 -0.3 0.0 179.7 499 2087 04 44 00 04 47 00 --- 20 19 28 72.5 -2.3 0.1 177.3 180 2110 04 44 01 04 48 00 CYG-A 20 20 29 68.6 -10.7 0.3 166.7 44 2110 04 48 00 05 03 00 --- 20 35 31 67.7 -17.9 0.6 157.5 900 2226 04 48 01 05 04 00 2013+370 20 36 31 72.0 -13.3 0.3 164.2 43 2226 05 04 00 05 07 00 --- 20 39 32 71.8 -15.1 0.4 162.0 180 2249 05 04 01 05 08 00 CYG-A 20 40 32 67.3 -20.2 0.7 154.6 43 2249 05 08 00 05 23 00 --- 20 55 34 65.9 -26.4 0.9 146.4 900 2365 05 08 01 05 24 00 CYG-A 20 56 34 65.8 -26.8 0.9 145.9 54 2365 05 24 00 05 28 00 --- 21 00 35 65.4 -28.3 1.0 143.9 240 2396 05 24 01 05 29 00 CYG-A 21 01 35 65.2 -28.7 1.0 143.4 54 2396 05 29 00 05 35 00 --- 21 07 36 64.5 -30.8 1.1 140.5 360 2442 05 29 01 05 36 00 2013+370 21 08 36 69.1 -30.6 0.9 143.1 42 2442 05 36 00 05 39 00 --- 21 11 37 68.8 -31.9 0.9 141.4 180 2466 05 36 01 05 40 00 CYG-A 21 12 37 63.9 -32.5 1.2 138.2 42 2466 05 40 00 05 55 00 --- 21 27 40 61.9 -36.9 1.5 131.8 900 2582 05 40 01 Schedule for VLBA_MK (Code Mk ) Page 5 Global 7mm VLBI observations of 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 ---------------------------------------------------------------------------------------- --- Mon 20 Oct 2014 Day 293 --- 05 56 00 CYG-A 21 28 40 61.8 -37.2 1.5 131.4 54 2582 05 56 00 06 00 00 --- 21 32 40 61.2 -38.2 1.5 129.8 240 2612 05 56 01 06 02 00 CYG-A 21 34 41 60.9 -38.7 1.6 129.0 114 2612 06 02 00 06 07 00 --- 21 39 42 60.2 -39.9 1.7 127.2 300 2651 06 02 01 06 09 00 BLLAC 21 41 42 67.0 10.3 -0.4 -166.9 77 2651 06 09 00 06 12 00 --- 21 44 42 67.1 8.9 -0.3 -168.7 180 2674 06 09 01 06 21 00 2013+370 21 53 44 62.5 -45.5 1.6 122.6 496 2674 06 21 00 06 24 00 --- 21 56 44 62.0 -46.2 1.7 121.5 180 2697 06 21 01 06 25 00 CYG-A 21 57 45 57.3 -43.6 2.0 121.1 42 2697 06 25 00 06 40 00 --- 22 12 47 54.8 -46.0 2.2 116.6 900 2813 06 25 01 06 41 00 2013+370 22 13 47 59.0 -49.5 2.0 116.1 43 2813 06 41 00 06 44 00 --- 22 16 48 58.5 -50.0 2.0 115.2 180 2837 06 41 01 06 45 00 CYG-A 22 17 48 54.0 -46.7 2.3 115.2 43 2837 06 45 00 07 00 00 --- 22 32 50 51.4 -48.6 2.5 111.3 900 2953 06 45 01 07 01 00 CYG-A 22 33 50 51.2 -48.7 2.6 111.0 54 2953 07 01 00 07 11 00 --- 22 43 52 49.4 -49.7 2.7 108.6 600 3030 07 01 01 07 12 00 2013+370 22 44 52 53.3 -53.6 2.5 107.9 44 3030 07 12 00 07 15 00 --- 22 47 53 52.7 -53.9 2.5 107.2 180 3053 07 12 01 07 16 00 CYG-A 22 48 53 48.5 -50.2 2.8 107.4 43 3053 07 16 00 07 31 00 --- 23 03 55 45.8 -51.3 3.1 104.1 900 3169 07 16 01 07 32 00 2013+370 23 04 56 49.4 -55.4 2.8 103.5 44 3169 07 32 00 07 35 00 --- 23 07 56 48.9 -55.6 2.9 102.9 180 3192 07 32 01 07 36 00 CYG-A 23 08 56 44.8 -51.6 3.1 103.1 44 3192 07 36 00 07 51 00 --- 23 23 59 42.0 -52.4 3.4 100.1 900 3308 07 36 01 07 52 00 2013+370 23 24 59 45.5 -56.5 3.1 99.6 44 3308 07 52 00 07 55 00 --- 23 27 59 44.9 -56.7 3.2 99.0 180 3331 07 52 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: /home/bboccardi/SCHED/setups/sess314QG.setini Matching groups in /home/bboccardi/SCHED/catalogs/freq_RDBE.dat: v7mm_c8 Setup group: 11 Station: VLBA_MK Total bit rate: 1024 Format: VDIF Bits per sample: 2 Sample rate: 64.000 Number of channels: 8 DBE type: RDBE_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 42400.00 42400.00 42400.00 42400.00 42400.00 42400.00 42400.00 42400.00 Net SB= U U U U U U U U IF SB = U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 2 3 4 5 6 7 8 BBC SB= U U U U U U U U IF = A C A C A C A C VLBA FE= 7mm omit 7mm omit VLBA Synth= 15.1 7.6 11.6 The following frequency sets based on these setups were used. See the crd files for VLBA legacy system setups and pcal detection details. Frequency Set: 9 Setup file default. Used with PCAL = 1MHz LO sum= 43114.25 43114.25 43146.25 43146.25 43178.25 43178.25 43210.25 43210.25 BBC fr= 714.25 714.25 746.25 746.25 778.25 778.25 810.25 810.25 Bandwd= 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 VLBA legacy crd files using 4 channels based on RDBE channels: 3 4 5 6 CRD fr= 754.25 754.25 786.25 786.25 CRD bw= 16.00 16.00 16.00 16.00 Matching frequency sets: 9 10 11 12 13 14 15 16 17 19 Track assignments are: track1= 1, 2, 3, 4, 5, 6, 7, 8 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) J1959+4044 19 57 44.453094 * 19 59 28.368821 19 59 59.565661 167.68 * CYG-A 40 35 46.31273 * 40 44 02.04732 40 46 56.28727 120.15 CYGNUS-A /home/bboccardi/SCHED/catalogs/sources.vlba J1959+40 rfc_2012b Petrov, 2012, unpublished 3 observations 1957+405 1957+404 J2015+3710 20 13 37.014489 * 20 15 28.729775 20 16 02.361112 0.16 * 2013+370 37 01 44.45943 * 37 10 59.51531 37 14 10.46269 0.16 /home/bboccardi/SCHED/catalogs/sources.vlba rfc_2012b Petrov, 2012, unpublished 282 observations J2202+4216 22 00 39.362504 * 22 02 43.291371 22 03 21.587829 0.14 * BLLAC 42 02 08.59073 * 42 16 39.97987 42 21 20.82381 0.10 2200+420 /home/bboccardi/SCHED/catalogs/sources.vlba J2202+42 rfc_2012b Petrov, 2012, unpublished 59418 observations VR422201 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 tups/sess314QG.setini 1 2 3 4 5 6 9 18 14.458 883.767 2013+370 tups/sess314QG.setini 1 2 3 4 5 6 9 18 2.300 140.650 BLLAC tups/sess314QG.setini 1 2 3 4 5 6 9 18 0.500 32.550 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 100.7 2013+370 103.6 BLLAC 123.4 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