COVER INFORMATION Station: KVNUS (Code Ku ) Experiment: M87 high-resolution jet imaging Exp. Code: ek044 Schedule Version: 2.00 Processed by SCHED version: 11.50 Development version 11.5. Started Apr. 2 PI: Evgeniya Kravchenko Address: INAF Instituto di Radioastronomia via Piero Gobetti 101 40129 Bologna Italy Phone: +39 37 13530918 EMAIL: evgeniya.kravchenko@inaf.it Fax: +39 051 6399431 Phone during observation: +39 37 13530918 Observing mode: Notes: COVER LETTER: This is the schedule for single-epoch M87 observations at 1.3cm. It includes Jb2 Ef On60 Ur Tr Ys Sv Zc Bd Sr Mh Kt Ky Ku T6 Hh at a standard 1 Gbps continuum mode. Unfortunately, Mc and Nt are not available. Hh participation is highly desirable. Gaps between scans are adjusted to allow pointing for Effelsberg, which should be checked periodically (8 minute gaps every 2 hours). Fringe finder is 3C273 (two scans, for Asia and Europe). Kvazar has daily IVS sessions, and will quit during 1830-2130 UT. Schedule for KVNUS (Code Ku ) Page 2 M87 high-resolution jet imaging 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 2 Mar 2020 Day 62 --- 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: 7812.51 7812.51 7812.51 7812.51 7780.51 7780.51 7780.51 7780.51 7748.51 7748.51 7748.51 7748.51 7716.51 7716.51 7716.51 7716.51 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 13 30 00 M87 08 50 12 35.1 100.5 -3.7 -55.0 0 0 13 30 00 13 38 00 --- 08 58 13 36.7 101.9 -3.6 -54.6 480 62 13 30 01 13 38 20 M87 08 58 33 36.8 102.0 -3.6 -54.5 18 62 13 38 20 13 48 00 --- 09 08 15 38.7 103.7 -3.4 -54.0 580 137 13 38 21 13 48 20 M87 09 08 35 38.8 103.8 -3.4 -54.0 18 137 13 48 20 13 58 00 --- 09 18 17 40.7 105.6 -3.2 -53.3 580 211 13 48 21 13 58 20 M87 09 18 37 40.7 105.7 -3.2 -53.3 18 211 13 58 20 14 08 00 --- 09 28 18 42.6 107.6 -3.1 -52.5 580 286 13 58 21 14 08 20 M87 09 28 38 42.7 107.7 -3.1 -52.5 18 286 14 08 20 14 18 00 --- 09 38 20 44.5 109.7 -2.9 -51.6 580 361 14 08 21 14 18 20 M87 09 38 40 44.6 109.7 -2.9 -51.6 18 361 14 18 20 14 28 00 --- 09 48 22 46.5 111.9 -2.7 -50.6 580 435 14 18 21 14 28 20 M87 09 48 42 46.5 111.9 -2.7 -50.6 18 435 14 28 20 14 38 00 --- 09 58 23 48.3 114.2 -2.6 -49.4 580 510 14 28 21 14 38 20 M87 09 58 43 48.4 114.3 -2.6 -49.4 18 510 14 38 20 14 48 00 --- 10 08 25 50.2 116.7 -2.4 -48.1 580 585 14 38 21 14 48 20 M87 10 08 45 50.2 116.7 -2.4 -48.0 18 585 14 48 20 14 58 00 --- 10 18 27 52.0 119.3 -2.2 -46.6 580 660 14 48 21 14 58 20 M87 10 18 47 52.0 119.4 -2.2 -46.5 18 660 14 58 20 15 08 00 --- 10 28 28 53.7 122.1 -2.1 -44.8 580 734 14 58 21 15 08 40 3C273 10 29 08 46.2 133.3 -2.0 -36.3 33 734 15 08 40 15 14 40 --- 10 35 09 47.1 135.1 -1.9 -35.1 360 781 15 08 41 15 15 12 M87 10 35 41 55.0 124.3 -1.9 -43.5 25 781 15 15 12 15 24 52 --- 10 45 23 56.6 127.4 -1.8 -41.4 580 855 15 15 13 15 25 12 M87 10 45 43 56.6 127.5 -1.8 -41.3 18 855 15 25 12 15 34 52 --- 10 55 24 58.1 130.9 -1.6 -39.0 580 930 15 25 13 Schedule for KVNUS (Code Ku ) Page 3 M87 high-resolution jet imaging 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 2 Mar 2020 Day 62 --- 15 35 12 M87 10 55 44 58.2 131.0 -1.6 -38.9 18 930 15 35 12 15 44 52 --- 11 05 26 59.6 134.6 -1.4 -36.3 580 1005 15 35 13 15 45 12 M87 11 05 46 59.7 134.8 -1.4 -36.2 18 1005 15 45 12 15 54 52 --- 11 15 28 61.0 138.7 -1.3 -33.3 580 1080 15 45 13 15 55 12 M87 11 15 48 61.1 138.8 -1.3 -33.2 18 1080 15 55 12 16 04 52 --- 11 25 29 62.3 143.1 -1.1 -30.0 580 1154 15 55 13 16 05 12 M87 11 25 49 62.4 143.2 -1.1 -29.9 18 1154 16 05 12 16 14 52 --- 11 35 31 63.5 147.8 -0.9 -26.3 580 1229 16 05 13 16 15 12 M87 11 35 51 63.5 148.0 -0.9 -26.2 18 1229 16 15 12 16 24 52 --- 11 45 32 64.5 152.9 -0.8 -22.3 580 1304 16 15 13 16 25 12 M87 11 45 53 64.5 153.1 -0.8 -22.1 18 1304 16 25 12 16 34 52 --- 11 55 34 65.3 158.3 -0.6 -17.9 580 1378 16 25 13 16 35 12 M87 11 55 54 65.4 158.5 -0.6 -17.7 18 1378 16 35 12 16 44 52 --- 12 05 36 66.0 164.1 -0.4 -13.2 580 1453 16 35 13 16 45 12 M87 12 05 56 66.0 164.3 -0.4 -13.0 18 1453 16 45 12 16 54 52 --- 12 15 37 66.4 170.0 -0.3 -8.3 580 1528 16 45 13 16 55 12 M87 12 15 57 66.5 170.2 -0.3 -8.1 18 1528 16 55 12 17 04 52 --- 12 25 39 66.7 176.2 -0.1 -3.2 580 1603 16 55 13 17 05 12 M87 12 25 59 66.7 176.4 -0.1 -3.0 18 1603 17 05 12 17 14 52 --- 12 35 41 66.7 182.4 0.1 2.0 580 1677 17 05 13 17 15 12 M87 12 36 01 66.7 182.6 0.1 2.1 18 1677 17 15 12 17 24 52 --- 12 45 42 66.5 188.5 0.2 7.1 580 1752 17 15 13 17 25 12 M87 12 46 02 66.5 188.7 0.2 7.3 18 1752 17 25 12 17 34 52 --- 12 55 44 66.1 194.5 0.4 12.1 580 1827 17 25 13 17 35 12 M87 12 56 04 66.1 194.7 0.4 12.2 18 1827 17 35 12 17 44 52 --- 13 05 46 65.5 200.3 0.6 16.8 580 1901 17 35 13 17 45 12 M87 13 06 06 65.5 200.5 0.6 17.0 18 1901 17 45 12 17 54 52 --- 13 15 47 64.7 205.8 0.7 21.3 580 1976 17 45 13 17 55 12 M87 13 16 07 64.7 206.0 0.7 21.4 18 1976 17 55 12 18 04 52 --- 13 25 49 63.7 211.0 0.9 25.4 580 2051 17 55 13 Schedule for KVNUS (Code Ku ) Page 4 M87 high-resolution jet imaging 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 2 Mar 2020 Day 62 --- 18 05 12 M87 13 26 09 63.7 211.2 0.9 25.5 18 2051 18 05 12 18 14 52 --- 13 35 51 62.6 215.8 1.1 29.2 580 2126 18 05 13 18 15 12 M87 13 36 11 62.6 216.0 1.1 29.3 18 2126 18 15 12 18 24 52 --- 13 45 52 61.4 220.3 1.2 32.6 580 2200 18 15 13 18 25 12 M87 13 46 12 61.3 220.4 1.2 32.7 18 2200 18 25 12 18 34 52 --- 13 55 54 60.0 224.4 1.4 35.7 580 2275 18 25 13 18 35 12 M87 13 56 14 59.9 224.6 1.4 35.8 18 2275 18 35 12 18 44 52 --- 14 05 55 58.5 228.3 1.6 38.4 580 2350 18 35 13 18 45 12 M87 14 06 16 58.4 228.4 1.6 38.5 18 2350 18 45 12 18 54 52 --- 14 15 57 56.9 231.8 1.7 40.9 580 2424 18 45 13 18 55 12 M87 14 16 17 56.9 231.9 1.7 40.9 18 2424 18 55 12 19 04 52 --- 14 25 59 55.3 235.1 1.9 43.1 580 2499 18 55 13 19 05 12 M87 14 26 19 55.2 235.2 1.9 43.1 18 2499 19 05 12 19 14 52 --- 14 36 00 53.6 238.1 2.1 45.0 580 2574 19 05 13 19 15 12 M87 14 36 20 53.5 238.2 2.1 45.0 18 2574 19 15 12 19 24 52 --- 14 46 02 51.8 240.9 2.2 46.7 580 2649 19 15 13 19 25 12 M87 14 46 22 51.8 241.0 2.2 46.7 18 2649 19 25 12 19 34 52 --- 14 56 04 50.0 243.5 2.4 48.2 580 2723 19 25 13 19 35 12 M87 14 56 24 50.0 243.6 2.4 48.2 18 2723 19 35 12 19 44 52 --- 15 06 05 48.2 246.0 2.6 49.5 580 2798 19 35 13 19 45 12 M87 15 06 25 48.1 246.1 2.6 49.6 18 2798 19 45 12 19 54 52 --- 15 16 07 46.3 248.3 2.7 50.7 580 2873 19 45 13 19 55 12 M87 15 16 28 46.2 248.4 2.7 50.7 19 2873 19 55 12 20 04 52 --- 15 26 09 44.4 250.5 2.9 51.7 580 2947 19 55 13 20 05 13 M87 15 26 30 44.3 250.6 2.9 51.7 19 2947 20 05 13 20 14 53 --- 15 36 12 42.5 252.6 3.1 52.6 580 3022 20 05 14 20 15 14 M87 15 36 32 42.4 252.6 3.1 52.6 19 3022 20 15 14 20 24 54 --- 15 46 14 40.5 254.5 3.2 53.4 580 3097 20 15 15 20 25 14 M87 15 46 35 40.4 254.6 3.2 53.4 19 3097 20 25 14 20 34 54 --- 15 56 16 38.5 256.4 3.4 54.0 580 3172 20 25 15 Schedule for KVNUS (Code Ku ) Page 5 M87 high-resolution jet imaging 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 2 Mar 2020 Day 62 --- 20 35 15 M87 15 56 37 38.5 256.5 3.4 54.1 19 3172 20 35 15 20 44 55 --- 16 06 19 36.5 258.2 3.6 54.6 580 3246 20 35 16 20 45 16 M87 16 06 40 36.5 258.3 3.6 54.6 19 3246 20 45 16 20 54 56 --- 16 16 21 34.5 260.0 3.7 55.1 580 3321 20 45 17 21 02 56 M87 16 24 22 32.9 261.3 3.9 55.4 478 3321 21 02 56 21 12 36 --- 16 34 04 31.0 262.9 4.0 55.7 580 3396 21 02 57 21 12 57 M87 16 34 25 30.9 262.9 4.0 55.7 19 3396 21 12 57 21 22 37 --- 16 44 06 28.9 264.5 4.2 56.0 580 3470 21 12 58 21 22 57 M87 16 44 27 28.9 264.5 4.2 56.0 19 3470 21 22 57 21 32 37 --- 16 54 09 26.9 266.0 4.4 56.2 580 3545 21 22 58 21 32 58 M87 16 54 29 26.8 266.1 4.4 56.2 19 3545 21 32 58 21 42 38 --- 17 04 11 24.9 267.5 4.5 56.3 580 3620 21 32 59 21 42 59 M87 17 04 32 24.8 267.6 4.5 56.3 19 3620 21 42 59 21 52 39 --- 17 14 13 22.8 269.0 4.7 56.4 580 3695 21 43 00 21 52 59 M87 17 14 34 22.7 269.1 4.7 56.4 19 3695 21 52 59 22 02 39 --- 17 24 16 20.8 270.5 4.9 56.4 580 3769 21 53 00 22 03 00 M87 17 24 37 20.7 270.5 4.9 56.4 19 3769 22 03 00 22 12 40 --- 17 34 18 18.7 271.9 5.0 56.3 580 3844 22 03 01 22 13 01 M87 17 34 39 18.7 272.0 5.0 56.3 19 3844 22 13 01 22 22 41 --- 17 44 21 16.7 273.4 5.2 56.2 580 3919 22 13 02 22 23 45 3C273 17 45 24 10.2 265.0 5.3 54.2 58 3919 22 23 45 22 29 45 --- 17 51 25 9.0 265.9 5.4 54.3 360 3965 22 23 46 22 30 49 M87 17 52 30 15.0 274.5 5.3 56.1 59 3965 22 30 49 22 40 29 --- 18 02 12 13.1 275.9 5.5 55.9 580 4040 22 30 50 22 40 50 M87 18 02 33 13.0 275.9 5.5 55.9 19 4040 22 40 50 22 50 30 --- 18 12 14 11.0 277.3 5.7 55.7 580 4114 22 40 51 22 50 51 M87 18 12 35 11.0 277.3 5.7 55.7 19 4114 22 50 51 23 00 31 --- 18 22 17 9.0 278.7 5.8 55.4 580 4189 22 50 52 23 00 52 M87 18 22 37 9.0 278.7 5.8 55.4 19 4189 23 00 52 23 10 32 --- 18 32 19 7.0 280.1 6.0 55.1 580 4264 23 00 53 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess120.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: 15 Station: KVNUS Total bit rate: 1024 Format: VDIF 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= 30000.00 30000.00 30000.00 30000.00 30000.00 30000.00 30000.00 30000.00 30000.00 30000.00 30000.00 30000.00 30000.00 30000.00 30000.00 30000.00 Net SB= L L U U L L U U L L U U L L U U IF SB = L L L L L L L L L L L L L L L L Pol. = RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 BBC SB= U U L L U U L L U U L L U U L L 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: 2 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= 7812.51 7812.51 7812.51 7812.51 7780.51 7780.51 7780.51 7780.51 7748.51 7748.51 7748.51 7748.51 7716.51 7716.51 7716.51 7716.51 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: 2 3 4 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) 3C273B 12 26 33.245835 * 12 29 06.699731 12 30 08.712091 1.03 J1229+0203 02 19 43.30570 * 02 03 08.59820 01 56 26.28114 1.38 * 3C273 /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc 1226+023 GSFC 2016a X/S astro solution, 32136 observations. J1229+02 3C274 12 28 17.569280 * 12 30 49.423383 12 31 50.782693 0.00 J1230+1223 12 40 01.74892 * 12 23 28.04374 12 16 44.69064 0.00 1228+126 /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc J1230+12 GSFC 2016a X/S astro solution, 68465 observations. * M87 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 3C273 sess120.K1024 1 2 5 6 9 10 11 12 13 14 15 + 0.300 19.000 M87 sess120.K1024 1 2 5 6 9 10 11 12 13 14 15 + 14.472 777.244 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) 3C273 156.2 M87 155.9 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