COVER INFORMATION Station: ZELENCHK (Code Zc ) 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 ZELENCHK (Code Zc ) 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: 267.49 267.49 267.49 267.49 299.49 299.49 299.49 299.49 331.49 331.49 331.49 331.49 363.49 363.49 363.49 363.49 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 17 25 12 M87 06 55 18 12.7 445.0 -5.6 -47.4 0 0 17 25 12 17 34 52 --- 07 05 00 14.4 446.7 -5.4 -47.5 580 74 17 25 13 17 35 12 M87 07 05 20 14.5 446.7 -5.4 -47.5 14 74 17 35 12 17 44 52 --- 07 15 01 16.2 448.4 -5.3 -47.6 580 149 17 35 13 17 45 12 M87 07 15 21 16.3 448.5 -5.3 -47.6 14 149 17 45 12 17 54 52 --- 07 25 03 18.0 450.1 -5.1 -47.6 580 223 17 45 13 17 55 12 M87 07 25 23 18.1 450.2 -5.1 -47.6 14 223 17 55 12 18 04 52 --- 07 35 05 19.8 451.9 -4.9 -47.6 580 297 17 55 13 18 05 12 M87 07 35 25 19.9 451.9 -4.9 -47.6 14 297 18 05 12 18 14 52 --- 07 45 06 21.6 453.6 -4.8 -47.5 580 372 18 05 13 18 15 12 M87 07 45 26 21.7 453.7 -4.8 -47.5 14 372 18 15 12 18 24 52 --- 07 55 08 23.4 455.4 -4.6 -47.3 580 446 18 15 13 18 25 12 M87 07 55 28 23.5 455.5 -4.6 -47.3 14 446 18 25 12 18 34 52 --- 08 05 10 25.2 457.3 -4.4 -47.1 580 521 18 25 13 18 35 12 M87 08 05 30 25.3 457.3 -4.4 -47.1 14 521 18 35 12 18 44 52 --- 08 15 11 27.0 459.1 -4.3 -46.8 580 595 18 35 13 18 45 12 M87 08 15 31 27.1 459.2 -4.3 -46.8 14 595 18 45 12 18 54 52 --- 08 25 13 28.8 461.0 -4.1 -46.5 580 669 18 45 13 18 55 12 M87 08 25 33 28.9 461.1 -4.1 -46.5 14 669 18 55 12 19 04 52 --- 08 35 14 30.6 463.0 -3.9 -46.1 580 744 18 55 13 19 05 12 M87 08 35 34 30.6 463.0 -3.9 -46.0 14 744 19 05 12 19 14 52 --- 08 45 16 32.3 465.0 -3.8 -45.5 580 818 19 05 13 19 15 12 M87 08 45 36 32.4 465.0 -3.8 -45.5 14 818 19 15 12 19 24 52 --- 08 55 18 34.1 467.0 -3.6 -44.9 580 892 19 15 13 19 25 12 M87 08 55 38 34.1 467.1 -3.6 -44.9 14 892 19 25 12 19 34 52 --- 09 05 19 35.8 469.2 -3.4 -44.3 580 967 19 25 13 Schedule for ZELENCHK (Code Zc ) 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 --- 19 35 12 M87 09 05 39 35.9 469.2 -3.4 -44.2 14 967 19 35 12 19 44 52 --- 09 15 21 37.5 471.4 -3.3 -43.5 580 1041 19 35 13 19 45 12 M87 09 15 41 37.6 471.4 -3.3 -43.4 14 1041 19 45 12 19 54 52 --- 09 25 23 39.2 473.6 -3.1 -42.6 580 1115 19 45 13 19 55 12 M87 09 25 43 39.2 473.7 -3.1 -42.6 15 1115 19 55 12 20 04 52 --- 09 35 25 40.8 476.0 -2.9 -41.6 580 1190 19 55 13 20 05 13 M87 09 35 46 40.9 476.1 -2.9 -41.6 15 1190 20 05 13 20 14 53 --- 09 45 27 42.4 478.5 -2.8 -40.5 580 1264 20 05 14 20 15 14 M87 09 45 48 42.5 478.6 -2.8 -40.4 15 1264 20 15 14 20 24 54 --- 09 55 30 44.0 481.1 -2.6 -39.3 580 1338 20 15 15 20 25 14 M87 09 55 50 44.1 481.2 -2.6 -39.2 15 1338 20 25 14 20 34 54 --- 10 05 32 45.5 483.8 -2.4 -37.9 580 1413 20 25 15 20 35 15 M87 10 05 53 45.6 483.9 -2.4 -37.8 15 1413 20 35 15 20 44 55 --- 10 15 34 47.0 486.6 -2.3 -36.4 580 1487 20 35 16 20 45 16 M87 10 15 55 47.1 486.7 -2.3 -36.3 15 1487 20 45 16 20 54 56 --- 10 25 37 48.4 489.6 -2.1 -34.7 580 1562 20 45 17 21 02 56 M87 10 33 38 49.5 492.0 -2.0 -33.3 473 1562 21 02 56 21 12 36 --- 10 43 20 50.8 495.2 -1.8 -31.4 580 1636 21 02 57 21 12 57 M87 10 43 40 50.8 495.3 -1.8 -31.3 15 1636 21 12 57 21 22 37 --- 10 53 22 52.0 498.6 -1.6 -29.3 580 1710 21 12 58 21 22 57 M87 10 53 43 52.1 498.7 -1.6 -29.2 15 1710 21 22 57 21 32 37 --- 11 03 24 53.2 502.1 -1.5 -27.0 580 1785 21 22 58 21 32 58 M87 11 03 45 53.2 502.3 -1.5 -26.9 14 1785 21 32 58 21 42 38 --- 11 13 27 54.3 505.9 -1.3 -24.5 580 1859 21 32 59 21 42 59 M87 11 13 48 54.3 506.0 -1.3 -24.4 14 1859 21 42 59 21 52 39 --- 11 23 29 55.2 509.8 -1.1 -21.8 580 1933 21 43 00 21 52 59 M87 11 23 50 55.3 509.9 -1.1 -21.7 14 1933 21 52 59 22 02 39 --- 11 33 31 56.1 513.8 -1.0 -19.0 580 2008 21 53 00 22 03 00 M87 11 33 52 56.1 514.0 -1.0 -18.9 14 2008 22 03 00 22 12 40 --- 11 43 34 56.8 518.1 -0.8 -16.0 580 2082 22 03 01 Schedule for ZELENCHK (Code Zc ) 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 --- 22 13 01 M87 11 43 55 56.8 518.2 -0.8 -15.9 14 2082 22 13 01 22 22 41 --- 11 53 36 57.4 522.5 -0.6 -12.9 580 2156 22 13 02 22 23 45 3C273 11 54 40 47.4 526.8 -0.6 -9.5 29 2156 22 23 45 22 29 45 --- 12 00 41 47.6 529.0 -0.5 -7.9 360 2203 22 23 46 22 30 49 M87 12 01 46 57.8 526.1 -0.5 -10.2 29 2203 22 30 49 22 40 29 --- 12 11 28 58.2 530.5 -0.3 -7.0 580 2277 22 30 50 22 40 50 M87 12 11 48 58.2 530.7 -0.3 -6.9 14 2277 22 40 50 22 50 30 --- 12 21 30 58.4 535.2 -0.2 -3.6 580 2351 22 40 51 22 50 51 M87 12 21 51 58.4 535.3 -0.2 -3.4 14 2351 22 50 51 23 00 31 --- 12 31 32 58.5 539.9 -0.0 -0.1 580 2426 22 50 52 23 00 52 M87 12 31 53 58.5 540.0 0.0 0.0 14 2426 23 00 52 23 10 32 --- 12 41 35 58.4 544.5 0.2 3.4 580 2500 23 00 53 23 18 32 M87 12 49 36 58.3 548.3 0.3 6.1 472 2500 23 18 32 23 28 12 --- 12 59 18 57.9 552.7 0.5 9.4 580 2574 23 18 33 23 28 32 M87 12 59 38 57.9 552.9 0.5 9.5 14 2574 23 28 32 23 38 12 --- 13 09 20 57.5 557.2 0.6 12.6 580 2649 23 28 33 23 38 33 M87 13 09 41 57.5 557.4 0.6 12.7 14 2649 23 38 33 23 48 13 --- 13 19 22 56.9 561.6 0.8 15.8 580 2723 23 38 34 23 48 34 M87 13 19 43 56.8 561.7 0.8 15.9 14 2723 23 48 34 23 58 14 --- 13 29 25 56.1 565.8 1.0 18.8 580 2797 23 48 35 --- Start: Mon 2 Mar 2020 Day 62 -- Stop: Tue 3 Mar 2020 Day 63 --- 23 58 34 M87 13 29 45 56.1 566.0 1.0 18.9 14 2797 23 58 34 00 08 14 --- 13 39 27 55.3 569.9 1.1 21.6 580 2872 23 58 35 00 08 35 M87 13 39 48 55.3 570.1 1.1 21.7 14 2872 00 08 35 00 18 15 --- 13 49 29 54.3 573.8 1.3 24.3 580 2946 00 08 36 00 18 36 M87 13 49 50 54.3 574.0 1.3 24.4 14 2946 00 18 36 00 28 16 --- 13 59 32 53.3 577.6 1.5 26.8 580 3021 00 18 37 00 28 37 M87 13 59 53 53.2 577.7 1.5 26.9 14 3021 00 28 37 00 38 17 --- 14 09 34 52.1 581.2 1.6 29.1 580 3095 00 28 38 Schedule for ZELENCHK (Code Zc ) 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 ---------------------------------------------------------------------------------------- --- Tue 3 Mar 2020 Day 63 --- 00 38 37 M87 14 09 55 52.1 581.3 1.6 29.2 15 3095 00 38 37 00 48 17 --- 14 19 36 50.9 584.6 1.8 31.2 580 3169 00 38 38 00 48 38 M87 14 19 57 50.9 584.7 1.8 31.3 15 3169 00 48 38 00 58 18 --- 14 29 39 49.6 587.8 2.0 33.2 580 3244 00 48 39 00 59 29 3C273 14 30 50 40.3 581.2 2.0 28.4 38 3244 00 59 29 01 05 29 --- 14 36 51 39.6 582.9 2.1 29.5 360 3290 00 59 30 01 06 40 M87 14 38 02 48.4 590.4 2.1 34.7 38 3290 01 06 40 01 16 20 --- 14 47 44 47.1 593.3 2.3 36.3 580 3364 01 06 41 01 24 20 M87 14 55 45 45.9 595.6 2.4 37.5 473 3364 01 24 20 01 34 00 --- 15 05 27 44.4 598.2 2.6 38.9 580 3438 01 24 21 01 34 21 M87 15 05 48 44.4 598.3 2.6 38.9 15 3438 01 34 21 01 44 01 --- 15 15 29 42.9 600.8 2.7 40.2 580 3513 01 34 22 01 44 21 M87 15 15 50 42.8 600.9 2.7 40.2 15 3513 01 44 21 01 54 01 --- 15 25 31 41.3 603.3 2.9 41.3 580 3587 01 44 22 01 54 22 M87 15 25 52 41.2 603.4 2.9 41.3 15 3587 01 54 22 02 04 02 --- 15 35 34 39.6 605.7 3.1 42.3 580 3662 01 54 23 02 04 23 M87 15 35 55 39.6 605.8 3.1 42.4 15 3662 02 04 23 02 14 03 --- 15 45 36 38.0 608.0 3.2 43.2 580 3736 02 04 24 02 14 24 M87 15 45 57 37.9 608.1 3.2 43.3 15 3736 02 14 24 02 24 04 --- 15 55 39 36.3 610.2 3.4 44.1 580 3810 02 14 25 02 32 04 M87 16 03 40 34.9 612.0 3.5 44.6 473 3810 02 32 04 02 41 44 --- 16 13 21 33.2 614.0 3.7 45.2 580 3885 02 32 05 02 42 04 M87 16 13 42 33.2 614.1 3.7 45.3 15 3885 02 42 04 02 51 44 --- 16 23 24 31.5 616.0 3.9 45.8 580 3959 02 42 05 02 52 05 M87 16 23 45 31.4 616.1 3.9 45.8 15 3959 02 52 05 03 01 45 --- 16 33 26 29.7 618.0 4.0 46.3 580 4033 02 52 06 03 02 06 M87 16 33 47 29.6 618.1 4.0 46.3 15 4033 03 02 06 03 11 46 --- 16 43 29 27.9 619.9 4.2 46.7 580 4108 03 02 07 03 12 06 M87 16 43 49 27.9 620.0 4.2 46.7 15 4108 03 12 06 03 21 46 --- 16 53 31 26.1 621.8 4.4 47.0 580 4182 03 12 07 Schedule for ZELENCHK (Code Zc ) Page 6 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 ---------------------------------------------------------------------------------------- --- Tue 3 Mar 2020 Day 63 --- 03 22 07 M87 16 53 52 26.1 621.9 4.4 47.0 15 4182 03 22 07 03 31 47 --- 17 03 33 24.3 623.7 4.5 47.2 580 4256 03 22 08 03 32 08 M87 17 03 54 24.3 623.7 4.5 47.3 15 4256 03 32 08 03 41 48 --- 17 13 36 22.5 625.5 4.7 47.4 580 4331 03 32 09 03 49 48 M87 17 21 37 21.1 626.9 4.8 47.5 473 4331 03 49 48 03 59 28 --- 17 31 19 19.3 628.6 5.0 47.6 580 4405 03 49 49 03 59 49 M87 17 31 39 19.3 628.7 5.0 47.6 15 4405 03 59 49 04 09 29 --- 17 41 21 17.5 630.3 5.2 47.6 580 4479 03 59 50 04 09 49 M87 17 41 42 17.5 630.4 5.2 47.6 15 4479 04 09 49 04 19 29 --- 17 51 23 15.7 632.1 5.3 47.6 580 4554 04 09 50 04 19 50 M87 17 51 44 15.7 632.1 5.3 47.6 15 4554 04 19 50 04 29 30 --- 18 01 26 13.9 633.8 5.5 47.5 580 4628 04 19 51 04 29 51 M87 18 01 46 13.9 633.8 5.5 47.5 15 4628 04 29 51 04 39 31 --- 18 11 28 12.1 635.5 5.7 47.3 580 4703 04 29 52 04 39 51 M87 18 11 49 12.0 635.5 5.7 47.3 15 4703 04 39 51 04 49 31 --- 18 21 30 10.3 637.2 5.8 47.1 580 4777 04 39 52 04 49 51 M87 18 21 50 10.3 637.2 5.8 47.1 14 4777 04 49 51 04 59 31 --- 18 31 32 8.5 638.9 6.0 D 46.9 0 4851 04 49 52 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess120.K1024 Matching groups in /home/guest/rmc/SCHED/sched11.5/catalogs/freq_RDBE.dat: kvzr_k Added by Des Small, 24 February 2012 Setup group: 2 Station: ZELENCHK 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= 21920.00 21920.00 21920.00 21920.00 21920.00 21920.00 21920.00 21920.00 21920.00 21920.00 21920.00 21920.00 21920.00 21920.00 21920.00 21920.00 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 = 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: 1 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= 267.49 267.49 267.49 267.49 299.49 299.49 299.49 299.49 331.49 331.49 331.49 331.49 363.49 363.49 363.49 363.49 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: 1 7 8 Track assignments are: track1= 18, 26, 2, 10, 20, 28, 4, 12, 22, 30, 6, 14, 24, 32, 8, 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