COVER INFORMATION Station: ZELENCHK (Code Zc ) Experiment: The variable VLBI core of NGC 4151 Exp. Code: EP113E Schedule Version: 2.00 Processed by SCHED version: 11.50 Development version 11.5. Started Apr. 2 PI: F. Panessa Address: INAF-IAPS via del Fosso del Cavaliere, 100 00133 - Rome Italy Phone: +39 06 4548 8456 EMAIL: francesca.panessa@iaps.inaf.it Fax: --- Phone during observation: +39 06 4548 8456 Observing mode: Phase-referencing of a source at 1.3cm Notes: Target: NGC4151 Phase calibrator : J1209+4119 D-terms calibrator : -- Fringe finder : 3C286 Schedule for ZELENCHK (Code Zc ) Page 2 The variable VLBI core of NGC 4151 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 10 Jun 2019 Day 161 --- Next scan frequencies: 22139.49 22139.49 22139.49 22139.49 22203.49 22203.49 22203.49 22203.49 22267.49 22267.49 22267.49 22267.49 22331.49 22331.49 22331.49 22331.49 Next BBC frequencies: 219.49 219.49 219.49 219.49 283.49 283.49 283.49 283.49 347.49 347.49 347.49 347.49 411.49 411.49 411.49 411.49 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 17 00 00 3C286 13 01 19 75.3 513.0 -0.5 -22.4 0 0 17 00 00 17 02 00 --- 13 03 19 75.5 514.6 -0.5 -21.1 120 31 17 00 01 17 04 20 J1209+4119 13 05 39 79.5 620.6 0.9 71.3 9 31 17 04 20 17 06 20 =1206+416 13 07 40 79.1 621.3 1.0 71.6 120 62 17 04 21 17 06 20 NGC4151 13 07 40 78.6 611.7 0.9 62.3 -32 62 No stop 17 10 20 --- 13 11 40 77.9 613.4 1.0 63.4 208 123 17 06 21 17 10 20 J1209+4119 13 11 40 78.4 622.5 1.0 72.1 -32 123 No stop 17 12 20 =1206+416 13 13 41 78.1 623.1 1.1 72.3 88 154 17 10 21 17 12 20 NGC4151 13 13 41 77.6 614.2 1.0 63.9 -31 154 No stop 17 16 20 --- 13 17 41 76.9 615.7 1.1 64.7 209 215 17 12 21 17 17 00 J1209+4119 13 18 21 77.2 624.3 1.1 72.8 9 215 17 17 00 17 19 00 =1206+416 13 20 22 76.9 624.8 1.2 72.9 120 246 17 17 01 17 19 00 NGC4151 13 20 22 76.4 616.7 1.1 65.2 -30 246 No stop 17 23 00 --- 13 24 22 75.7 618.0 1.2 65.9 210 308 17 19 01 17 23 00 J1209+4119 13 24 22 76.1 625.7 1.2 73.2 -30 308 No stop 17 25 00 =1206+416 13 26 23 75.8 626.2 1.3 73.3 90 338 17 23 01 17 25 00 NGC4151 13 26 23 75.3 618.6 1.2 66.2 -29 338 No stop 17 29 00 --- 13 30 23 74.6 619.8 1.3 66.7 211 400 17 25 01 17 29 40 J1209+4119 13 31 03 74.9 627.2 1.3 73.5 11 400 17 29 40 17 31 40 =1206+416 13 33 04 74.6 627.6 1.4 73.5 120 431 17 29 41 17 31 40 NGC4151 13 33 04 74.1 620.6 1.4 67.0 -28 431 No stop 17 35 40 --- 13 37 04 73.4 621.7 1.4 67.4 212 492 17 31 41 17 35 40 J1209+4119 13 37 04 73.9 628.4 1.4 73.6 -28 492 No stop 17 37 40 =1206+416 13 39 05 73.5 628.8 1.5 73.7 92 523 17 35 41 17 37 40 NGC4151 13 39 05 73.1 622.2 1.5 67.6 -28 523 No stop 17 41 40 --- 13 43 05 72.4 623.2 1.5 67.9 212 585 17 37 41 Schedule for ZELENCHK (Code Zc ) Page 3 The variable VLBI core of NGC 4151 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 10 Jun 2019 Day 161 --- 17 42 20 J1209+4119 13 43 46 72.7 629.6 1.6 73.7 12 585 17 42 20 17 44 20 =1206+416 13 45 46 72.3 630.0 1.6 73.7 120 615 17 42 21 17 44 20 NGC4151 13 45 46 71.9 623.8 1.6 68.0 -27 615 No stop 17 48 20 --- 13 49 47 71.2 624.7 1.6 68.3 213 677 17 44 21 17 48 20 J1209+4119 13 49 47 71.6 630.6 1.7 73.7 -27 677 No stop 17 50 20 =1206+416 13 51 47 71.2 631.0 1.7 73.7 93 708 17 48 21 17 50 20 NGC4151 13 51 47 70.8 625.2 1.7 68.4 -26 708 No stop 17 54 20 --- 13 55 48 70.1 626.0 1.7 68.5 214 769 17 50 21 17 55 00 J1209+4119 13 56 28 70.4 631.7 1.8 73.6 14 769 17 55 00 17 57 00 =1206+416 13 58 28 70.0 632.0 1.8 73.6 120 800 17 55 01 17 57 00 NGC4151 13 58 28 69.6 626.6 1.8 68.6 -26 800 No stop 18 01 00 --- 14 02 29 68.9 627.4 1.8 68.7 214 862 17 57 01 18 01 00 J1209+4119 14 02 29 69.3 632.6 1.9 73.5 -26 862 No stop 18 03 00 =1206+416 14 04 29 68.9 632.9 1.9 73.4 94 892 18 01 01 18 03 00 NGC4151 14 04 29 68.5 627.7 1.9 68.8 -25 892 No stop 18 07 00 --- 14 08 30 67.8 628.5 1.9 68.8 215 954 18 03 01 18 07 40 J1209+4119 14 09 10 68.1 633.6 2.0 73.3 15 954 18 07 40 18 09 40 =1206+416 14 11 10 67.7 633.9 2.0 73.3 120 985 18 07 41 18 09 40 NGC4151 14 11 10 67.3 629.0 2.0 68.9 -25 985 No stop 18 13 40 --- 14 15 11 66.6 629.7 2.1 68.9 215 1046 18 09 41 18 13 40 J1209+4119 14 15 11 67.0 634.5 2.1 73.1 -25 1046 No stop 18 15 40 =1206+416 14 17 11 66.6 634.8 2.1 73.0 95 1077 18 13 41 18 15 40 NGC4151 14 17 11 66.2 630.0 2.1 68.9 -24 1077 No stop 18 19 40 --- 14 21 12 65.5 630.7 2.2 68.9 216 1138 18 15 41 18 20 20 J1209+4119 14 21 52 65.8 635.4 2.2 72.9 16 1138 18 20 20 18 22 20 =1206+416 14 23 52 65.4 635.7 2.2 72.8 120 1169 18 20 21 18 22 20 NGC4151 14 23 52 65.0 631.2 2.2 68.9 -24 1169 No stop 18 26 20 --- 14 27 53 64.3 631.8 2.3 68.8 216 1231 18 22 21 18 26 20 J1209+4119 14 27 53 64.7 636.2 2.3 72.6 -24 1231 No stop 18 28 20 =1206+416 14 29 53 64.3 636.5 2.3 72.5 96 1262 18 26 21 Schedule for ZELENCHK (Code Zc ) Page 4 The variable VLBI core of NGC 4151 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 10 Jun 2019 Day 161 --- 18 28 20 NGC4151 14 29 53 63.9 632.1 2.3 68.8 -23 1262 No stop 18 32 20 --- 14 33 54 63.2 632.8 2.4 68.7 217 1323 18 28 21 18 33 00 J1209+4119 14 34 34 63.5 637.1 2.4 72.3 17 1323 18 33 00 18 35 00 =1206+416 14 36 34 63.1 637.3 2.4 72.2 120 1354 18 33 01 18 37 20 3C286 14 38 55 71.2 590.3 1.1 40.1 67 1354 18 37 20 18 40 00 --- 14 41 35 70.8 591.6 1.2 41.0 160 1395 18 37 21 ---------- Ef out for pointing ---------- 18 43 00 J1209+4119 14 44 36 61.7 638.3 2.6 71.7 109 1395 18 43 00 18 45 00 =1206+416 14 46 36 61.4 638.6 2.6 71.6 120 1426 18 43 01 18 45 00 NGC4151 14 46 36 60.9 634.7 2.6 68.4 -23 1426 No stop 18 48 30 --- 14 50 06 60.3 635.2 2.6 68.3 187 1479 18 45 01 18 49 10 J1209+4119 14 50 47 60.6 639.1 2.7 71.4 17 1479 18 49 10 18 51 10 =1206+416 14 52 47 60.3 639.4 2.7 71.3 120 1510 18 49 11 ---------- Ef back ---------- 18 51 10 NGC4151 14 52 47 59.8 635.6 2.7 68.2 -22 1510 No stop 18 54 40 --- 14 56 17 59.2 636.1 2.7 68.1 188 1564 18 51 11 18 54 40 J1209+4119 14 56 17 59.6 639.8 2.8 71.1 -22 1564 No stop 18 56 40 =1206+416 14 58 18 59.3 640.0 2.8 70.9 98 1595 18 54 41 18 56 40 NGC4151 14 58 18 58.8 636.4 2.8 68.0 -22 1595 No stop 19 00 40 --- 15 02 18 58.1 636.9 2.8 67.8 218 1656 18 56 41 19 01 20 J1209+4119 15 02 59 58.4 640.6 2.9 70.6 18 1656 19 01 20 19 03 20 =1206+416 15 04 59 58.1 640.8 2.9 70.5 120 1687 19 01 21 19 03 20 NGC4151 15 04 59 57.6 637.3 2.9 67.7 -22 1687 No stop 19 07 20 --- 15 09 00 56.9 637.8 3.0 67.5 218 1749 19 03 21 19 07 20 J1209+4119 15 09 00 57.4 641.3 3.0 70.3 -22 1749 No stop 19 09 20 =1206+416 15 11 00 57.0 641.5 3.0 70.1 98 1779 19 07 21 19 09 20 NGC4151 15 11 00 56.5 638.1 3.0 67.5 -21 1779 No stop 19 13 20 --- 15 15 00 55.8 638.6 3.1 67.3 219 1841 19 09 21 19 14 00 J1209+4119 15 15 41 56.2 642.1 3.1 69.8 19 1841 19 14 00 19 16 00 =1206+416 15 17 41 55.8 642.3 3.1 69.7 120 1872 19 14 01 Schedule for ZELENCHK (Code Zc ) Page 5 The variable VLBI core of NGC 4151 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 10 Jun 2019 Day 161 --- 19 16 00 NGC4151 15 17 41 55.3 639.0 3.1 67.1 -21 1872 No stop 19 20 00 --- 15 21 42 54.6 639.5 3.2 66.9 219 1933 19 16 01 19 20 00 J1209+4119 15 21 42 55.1 642.8 3.2 69.4 -21 1933 No stop 19 22 00 =1206+416 15 23 42 54.8 643.0 3.2 69.3 99 1964 19 20 01 19 22 00 NGC4151 15 23 42 54.3 639.8 3.2 66.8 -21 1964 No stop 19 26 00 --- 15 27 43 53.6 640.3 3.3 66.6 219 2026 19 22 01 19 26 40 J1209+4119 15 28 23 54.0 643.5 3.3 68.9 19 2026 19 26 40 19 28 40 =1206+416 15 30 23 53.6 643.8 3.3 68.8 120 2056 19 26 41 19 28 40 NGC4151 15 30 23 53.1 640.7 3.3 66.5 -21 2056 No stop 19 32 40 --- 15 34 24 52.4 641.2 3.4 66.2 219 2118 19 28 41 19 32 40 J1209+4119 15 34 24 52.9 644.2 3.4 68.5 -21 2118 No stop 19 34 40 =1206+416 15 36 24 52.6 644.5 3.4 68.3 99 2149 19 32 41 19 34 40 NGC4151 15 36 24 52.0 641.4 3.4 66.1 -21 2149 No stop 19 38 40 --- 15 40 25 51.3 641.9 3.5 65.9 219 2210 19 34 41 19 39 20 J1209+4119 15 41 05 51.7 645.0 3.5 68.0 19 2210 19 39 20 19 41 20 =1206+416 15 43 05 51.4 645.2 3.5 67.8 120 2241 19 39 21 19 41 20 NGC4151 15 43 05 50.8 642.3 3.5 65.7 -20 2241 No stop 19 45 20 --- 15 47 06 50.1 642.8 3.6 65.5 220 2303 19 41 21 19 45 20 J1209+4119 15 47 06 50.7 645.7 3.6 67.5 -20 2303 No stop 19 47 20 =1206+416 15 49 06 50.3 645.9 3.6 67.4 100 2333 19 45 21 19 47 20 NGC4151 15 49 06 49.8 643.0 3.6 65.4 -20 2333 No stop 19 51 20 --- 15 53 07 49.1 643.5 3.7 65.1 220 2395 19 47 21 19 52 00 J1209+4119 15 53 47 49.5 646.4 3.7 67.0 20 2395 19 52 00 19 54 00 =1206+416 15 55 47 49.2 646.7 3.8 66.9 120 2426 19 52 01 19 54 00 NGC4151 15 55 47 48.6 643.9 3.7 64.9 -20 2426 No stop 19 58 00 --- 15 59 48 47.9 644.4 3.8 64.7 220 2487 19 54 01 19 58 00 J1209+4119 15 59 48 48.5 647.1 3.8 66.5 -20 2487 No stop 20 00 00 =1206+416 16 01 48 48.1 647.3 3.9 66.4 100 2518 19 58 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess219.K2048 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: 2048 Format: MARK5B Bits per sample: 2 Sample rate: 64.000 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: 10 Setup file default. Used with PCAL = off LO sum= 22139.49 22139.49 22139.49 22139.49 22203.49 22203.49 22203.49 22203.49 22267.49 22267.49 22267.49 22267.49 22331.49 22331.49 22331.49 22331.49 BBC fr= 219.49 219.49 219.49 219.49 283.49 283.49 283.49 283.49 347.49 347.49 347.49 347.49 411.49 411.49 411.49 411.49 Bandwd= 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 Matching frequency sets: 10 11 12 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) * NGC4151 12 08 01.055801 * 12 10 32.583400 12 11 30.529205 0.00 39 41 02.10308 * 39 24 21.03100 39 18 09.96813 0.00 From catalog imbedded in main SCHED input file. 1206+416 12 06 51.117947 * 12 09 22.788006 12 10 20.765794 0.17 * J1209+4119 41 36 22.62761 * 41 19 41.37011 41 13 30.75115 0.16 /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 150 observations. * 3C286 13 28 49.657769 * 13 31 08.288061 13 32 01.923103 0.17 J1331+3030 30 45 58.64066 * 30 30 32.95930 30 24 48.76043 0.16 1328+307 /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc J1331+30 GSFC 2016a X/S astro solution, 269 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 NGC4151 sess219.K2048 1 2 3 4 5 6 7 8 9 10 14 15 + 1.717 158.398 J1209+4119 sess219.K2048 1 2 3 4 5 6 7 8 9 10 14 15 + 0.933 90.198 3C286 sess219.K2048 1 2 3 4 5 6 7 8 9 10 14 15 + 0.078 11.259 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) NGC4151 85.8 J1209+4119 84.7 3C286 104.4 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