COVER INFORMATION Station: KVNYS (Code Ky ) Experiment: GK052 Ultra-Deep Polarization Imaging of M87. Kim et al. Exp. Code: GK052 Schedule Version: 3.00 Processed by SCHED version: 11.40 Release 11.4. March 14, 2015 PI: Jae-Young Kim Address: Max Planck Institute for Radio Astronomy Auf dem Huegel 69 53121 Bonn Germany Phone: +49-228-525-387 EMAIL: jykim@mpifr-bonn.mpg.de Fax: +49-228-525-229 Phone during observation: +49-228-525-387 Observing mode: continuum global VLBI at 7mm Notes: Schedule for KVNYS (Code Ky ) Page 2 GK052 Ultra-Deep Polarization Imaging of M87. Kim et al. 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 ---------------------------------------------------------------------------------------- --- Thu 1 Feb 2018 Day 32 --- ---------- Segment (A). Ef+Ys+Mh+KVN (2330-0330) ---------- Next scan frequencies: 43120.00 43120.00 43120.00 43120.00 43152.00 43152.00 43152.00 43152.00 43184.00 43184.00 43184.00 43184.00 43216.00 43216.00 43216.00 43216.00 Next BBC frequencies: 9010.00 9010.00 9010.00 9010.00 9042.00 9042.00 9042.00 9042.00 9074.00 9074.00 9074.00 9074.00 9106.00 9106.00 9106.00 9106.00 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 23 30 00 1156+295 16 46 15 31.1 -75.3 4.8 61.4 0 0 23 30 00 23 33 00 --- 16 49 15 30.6 -75.0 4.8 61.2 180 23 23 30 01 23 35 00 M87 16 51 15 27.3 264.6 4.3 53.9 2 23 23 35 00 23 40 00 --- 16 56 16 26.3 265.4 4.4 54.0 300 62 23 35 01 23 41 00 M87 16 57 16 26.1 265.5 4.4 54.0 58 62 23 41 00 23 46 00 --- 17 02 17 25.1 266.3 4.5 54.1 300 100 23 41 01 23 52 00 1156+295 17 08 18 26.9 287.4 5.1 60.0 350 100 23 52 00 23 55 00 --- 17 11 19 26.4 287.7 5.2 59.8 180 123 23 52 01 --- Start: Thu 1 Feb 2018 Day 32 -- Stop: Fri 2 Feb 2018 Day 33 --- 23 57 00 M87 17 13 19 22.9 268.1 4.7 54.2 110 123 23 57 00 00 02 00 --- 17 18 20 21.9 268.8 4.8 54.2 300 162 23 57 01 00 03 00 M87 17 19 20 21.7 269.0 4.8 54.2 58 162 00 03 00 00 08 00 --- 17 24 21 20.7 269.8 4.9 54.2 300 200 00 03 01 00 14 00 3C279 17 30 22 13.2 251.7 4.6 49.2 351 200 00 14 00 00 17 00 --- 17 33 22 12.7 252.2 4.6 49.4 180 223 00 14 01 00 19 00 M87 17 35 23 18.6 271.4 5.1 54.2 111 223 00 19 00 00 24 00 --- 17 40 23 17.6 272.2 5.1 54.2 300 262 00 19 01 00 25 00 M87 17 41 24 17.4 272.3 5.2 54.2 58 262 00 25 00 00 30 00 --- 17 46 24 16.4 273.1 5.2 54.1 300 300 00 25 01 00 36 00 1156+295 17 52 25 18.7 292.8 5.9 56.8 351 300 00 36 00 00 39 00 --- 17 55 26 18.2 293.2 5.9 56.5 180 323 00 36 01 00 41 00 M87 17 57 26 14.2 274.7 5.4 53.9 111 323 00 41 00 00 46 00 --- 18 02 27 13.2 275.5 5.5 53.9 300 362 00 41 01 00 47 00 M87 18 03 27 13.0 275.6 5.5 53.8 58 362 00 47 00 00 52 00 --- 18 08 28 12.0 276.4 5.6 53.7 300 400 00 47 01 Schedule for KVNYS (Code Ky ) Page 3 GK052 Ultra-Deep Polarization Imaging of M87. Kim et al. 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 2 Feb 2018 Day 33 --- 01 03 00 M87 18 19 30 9.9 278.0 5.8 53.5 658 400 01 03 00 01 08 00 --- 18 24 31 8.9 278.7 5.9 53.3 300 438 01 03 01 01 09 00 M87 18 25 31 8.7 278.9 5.9 53.3 58 438 01 09 00 01 14 00 --- 18 30 32 7.7 279.6 6.0 53.1 300 477 01 09 01 01 20 00 1156+295 18 36 33 10.9 298.6 6.6 52.9 351 477 01 20 00 01 23 00 --- 18 39 33 10.3 299.0 6.7 52.6 180 500 01 20 01 01 25 00 M87 18 41 33 5.5 281.3 6.2 52.7 111 500 01 25 00 01 30 00 --- 18 46 34 4.6 282.0 6.2 D 52.5 0 538 01 25 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess317.Q2048glob --- 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: 13 Station: KVNYS 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= 34110.00 34110.00 34110.00 34110.00 34110.00 34110.00 34110.00 34110.00 34110.00 34110.00 34110.00 34110.00 34110.00 34110.00 34110.00 34110.00 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 = 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 BBC SB= L L U U L L U U L L U U L L U U IF = D C D C D C D C D C D C D C D C The following frequency sets based on these setups were used. Frequency Set: 4 Setup file default. Used with PCAL = 1MHz LO sum= 43120.00 43120.00 43120.00 43120.00 43152.00 43152.00 43152.00 43152.00 43184.00 43184.00 43184.00 43184.00 43216.00 43216.00 43216.00 43216.00 BBC fr= 9010.00 9010.00 9010.00 9010.00 9042.00 9042.00 9042.00 9042.00 9074.00 9074.00 9074.00 9074.00 9106.00 9106.00 9106.00 9106.00 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: 4 5 6 Track assignments are: track1= 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) J0319+4130 03 16 29.567260 * 03 19 48.160090 03 20 59.919769 1.30 0316+413 41 19 51.91699 * 41 30 42.10412 41 34 35.77274 2.72 * 3C84 /home/guest/rmc/SCHED/sched11.4/catalogs/sources.vlba.2012jul J0319+41 GSFC 2011B astro solution 9957 Observations J1159+2914 11 56 57.786211 * 11 59 31.833912 12 00 27.537682 0.11 * 1156+295 29 31 25.73868 * 29 14 43.82678 29 08 33.24702 0.10 J1159+29 /home/guest/rmc/SCHED/sched11.4/catalogs/sources.vlba.2012jul rfc_2012b Petrov, 2012, unpublished 64535 observations J1229+0203 12 26 33.245833 * 12 29 06.699729 12 30 02.260907 1.05 * 3C273 02 19 43.30578 * 02 03 08.59828 01 57 08.02652 1.38 3C273B /home/guest/rmc/SCHED/sched11.4/catalogs/sources.vlba.2012jul 1226+023 GSFC 2011B astro solution 31886 Observations J1229+02 J1230+1223 12 28 17.569280 * 12 30 49.423382 12 31 44.309734 0.10 3C274 12 40 01.74884 * 12 23 28.04366 12 17 24.96557 0.10 1228+126 /home/guest/rmc/SCHED/sched11.4/catalogs/sources.vlba.2012jul J1230+12 rfc_2012b Petrov, 2012, unpublished 47163 observations * M87 J1256-0547 12 53 35.831299 * 12 56 11.166567 12 57 07.355951 0.69 * 3C279 -05 31 07.99595 *-05 47 21.52481 -05 53 10.97901 0.92 1253-055 /home/guest/rmc/SCHED/sched11.4/catalogs/sources.vlba.2012jul J1256-05 GSFC 2011B astro solution 7402 Observations J1331+3030 13 28 49.657778 * 13 31 08.288070 13 31 58.008621 0.20 * 3C286 30 45 58.64061 * 30 30 32.95925 30 24 50.96806 0.19 1328+307 /home/guest/rmc/SCHED/sched11.4/catalogs/sources.vlba.2012jul J1331+30 rfc_2012b Petrov, 2012, unpublished 542 observations 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 3C84 sess317.Q2048glob 17 0.117 0.000 ps/vla_x_pointing.set 18 0.167 0.000 1156+295 sess317.Q2048glob 1 2 3 4 7 8 17 1.683 81.008 3C273 ps/vla_x_pointing.set 18 1.283 0.000 M87 sess317.Q2048glob 1 2 3 4 7 8 17 8.875 395.469 3C279 sess317.Q2048glob 1 2 3 4 7 8 17 1.300 47.667 3C286 sess317.Q2048glob 17 0.233 0.000 ps/vla_x_pointing.set 18 0.267 0.000 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) 3C84 104.2 1156+295 137.7 3C273 127.2 M87 129.6 3C279 118.0 3C286 117.9 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