COVER INFORMATION Station: SVETLOE (Code Sv ) Experiment: The variable VLBI core of NGC 4151 Exp. Code: EP113A 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 3.6cm (1024 Mb/s) Notes: Target: NGC4151 Phase calibrator : J1209+4119 D-terms calibrator : -- Fringe finder : 3C286 Schedule for SVETLOE (Code Sv ) 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 ---------------------------------------------------------------------------------------- --- Tue 30 Oct 2018 Day 303 --- Next scan frequencies: 8367.49 8367.49 8367.49 8367.49 8399.49 8399.49 8399.49 8399.49 8431.49 8431.49 8431.49 8431.49 8463.49 8463.49 8463.49 8463.49 Next BBC frequencies: 287.49 287.49 287.49 287.49 319.49 319.49 319.49 319.49 351.49 351.49 351.49 351.49 383.49 383.49 383.49 383.49 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 07 30 00 3C286 12 03 25 56.5 503.9 -1.5 -19.6 0 0 07 30 00 07 32 00 --- 12 05 25 56.6 504.7 -1.4 -19.3 120 15 07 30 01 07 33 49 J1209+4119 12 07 15 70.7 538.3 -0.1 -1.1 51 15 07 33 49 07 34 49 =1206+416 12 08 15 70.7 538.8 -0.0 -0.8 60 23 07 33 50 07 35 36 NGC4151 12 09 02 68.8 538.7 -0.0 -0.8 29 23 07 35 36 07 40 36 --- 12 14 02 68.8 541.4 0.0 0.9 300 62 07 35 37 07 41 21 J1209+4119 12 14 48 70.7 542.6 0.1 1.7 28 62 07 41 21 07 42 21 =1206+416 12 15 48 70.7 543.1 0.1 2.1 60 69 07 41 22 07 43 08 NGC4151 12 16 35 68.8 542.7 0.1 1.7 30 69 07 43 08 07 48 08 --- 12 21 36 68.7 545.4 0.2 3.4 300 108 07 43 09 07 48 54 J1209+4119 12 22 22 70.6 546.9 0.2 4.5 28 108 07 48 54 07 49 54 =1206+416 12 23 22 70.6 547.4 0.2 4.8 60 115 07 48 55 07 50 41 NGC4151 12 24 10 68.7 546.8 0.2 4.3 30 115 07 50 41 07 55 41 --- 12 29 11 68.6 549.4 0.3 6.0 300 154 07 50 42 07 56 27 J1209+4119 12 29 57 70.5 551.1 0.3 7.2 29 154 07 56 27 07 57 27 =1206+416 12 30 57 70.4 551.7 0.3 7.6 60 162 07 56 28 07 58 15 NGC4151 12 31 45 68.5 550.8 0.3 6.8 31 162 07 58 15 08 03 15 --- 12 36 46 68.4 553.4 0.4 8.5 300 200 07 58 16 08 04 01 J1209+4119 12 37 32 70.2 555.3 0.5 9.9 29 200 08 04 01 08 05 01 =1206+416 12 38 32 70.2 555.9 0.5 10.3 60 208 08 04 02 08 05 49 NGC4151 12 39 20 68.3 554.7 0.5 9.3 31 208 08 05 49 08 10 49 --- 12 44 21 68.2 557.3 0.5 10.9 300 246 08 05 50 08 11 35 J1209+4119 12 45 07 70.0 559.4 0.6 12.6 29 246 08 11 35 08 12 35 =1206+416 12 46 07 69.9 559.9 0.6 12.9 60 254 08 11 36 08 13 22 NGC4151 12 46 55 68.1 558.6 0.6 11.7 31 254 08 13 22 08 18 22 --- 12 51 56 67.9 561.1 0.7 13.3 300 292 08 13 23 Schedule for SVETLOE (Code Sv ) 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 ---------------------------------------------------------------------------------------- --- Tue 30 Oct 2018 Day 303 --- 08 19 08 J1209+4119 12 52 41 69.6 563.4 0.7 15.1 27 292 08 19 08 08 20 08 =1206+416 12 53 41 69.6 563.9 0.7 15.4 60 300 08 19 09 08 20 55 NGC4151 12 54 28 67.7 562.4 0.7 14.0 30 300 08 20 55 08 25 55 --- 12 59 29 67.5 564.9 0.8 15.5 300 338 08 20 56 08 26 39 J1209+4119 13 00 13 69.2 567.3 0.8 17.4 26 338 08 26 39 08 27 39 =1206+416 13 01 13 69.2 567.8 0.8 17.8 60 346 08 26 40 08 28 25 NGC4151 13 02 00 67.4 566.1 0.8 16.2 29 346 08 28 25 08 33 25 --- 13 07 01 67.1 568.5 0.9 17.6 300 385 08 28 26 08 35 04 3C286 13 08 40 59.6 530.0 -0.4 -5.7 35 385 08 35 04 08 37 04 --- 13 10 40 59.7 530.9 -0.4 -5.2 120 400 08 35 05 08 38 48 J1209+4119 13 12 24 68.5 573.3 1.0 21.0 37 400 08 38 48 08 39 48 =1206+416 13 13 24 68.4 573.8 1.1 21.3 60 408 08 38 49 08 40 31 NGC4151 13 14 07 66.6 571.8 1.0 19.6 25 408 08 40 31 08 45 31 --- 13 19 08 66.3 574.1 1.1 20.9 300 446 08 40 32 08 46 07 J1209+4119 13 19 45 68.0 576.7 1.2 23.0 18 446 08 46 07 08 47 07 =1206+416 13 20 45 67.9 577.2 1.2 23.3 60 454 08 46 08 08 47 47 NGC4151 13 21 25 66.1 575.1 1.2 21.4 21 454 08 47 47 08 52 47 --- 13 26 25 65.8 577.3 1.2 22.7 300 492 08 47 48 08 53 23 J1209+4119 13 27 02 67.4 580.0 1.3 24.9 17 492 08 53 23 08 54 23 =1206+416 13 28 02 67.3 580.5 1.3 25.1 60 500 08 53 24 08 55 00 NGC4151 13 28 39 65.6 578.3 1.3 23.2 18 500 08 55 00 09 00 00 --- 13 33 40 65.2 580.4 1.4 24.3 300 538 08 55 01 09 00 37 J1209+4119 13 34 17 66.8 583.2 1.4 26.6 17 538 09 00 37 09 01 37 =1206+416 13 35 17 66.7 583.6 1.4 26.8 60 546 09 00 38 09 02 14 NGC4151 13 35 54 65.0 581.3 1.4 24.8 18 546 09 02 14 09 07 14 --- 13 40 55 64.6 583.4 1.5 25.9 300 585 09 02 15 09 07 50 J1209+4119 13 41 31 66.2 586.2 1.5 28.2 17 585 09 07 50 09 08 50 =1206+416 13 42 32 66.1 586.6 1.5 28.4 60 592 09 07 51 09 09 27 NGC4151 13 43 08 64.4 584.3 1.5 26.4 18 592 09 09 27 09 14 27 --- 13 48 09 64.0 586.3 1.6 27.4 300 631 09 09 28 Schedule for SVETLOE (Code Sv ) 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 ---------------------------------------------------------------------------------------- --- Tue 30 Oct 2018 Day 303 --- 09 15 07 J1209+4119 13 48 49 65.5 589.2 1.6 29.7 20 631 09 15 07 09 16 07 =1206+416 13 49 50 65.4 589.5 1.7 29.8 60 638 09 15 08 09 16 45 NGC4151 13 50 27 63.8 587.2 1.7 27.8 18 638 09 16 45 09 21 41 --- 13 55 24 63.3 589.1 1.7 28.7 296 676 09 16 46 09 22 26 J1209+4119 13 56 09 64.8 592.0 1.8 31.0 25 676 09 22 26 09 23 26 =1206+416 13 57 09 64.7 592.4 1.8 31.2 60 684 09 22 27 09 28 00 3C286 14 01 45 59.5 552.7 0.5 7.2 209 684 09 28 00 09 30 00 --- 14 03 45 59.4 553.6 0.5 7.7 120 699 09 28 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess318.X1024 Matching groups in /home/guest/rmc/SCHED/sched11.5/catalogs/freq.dat: kvzr_x Added by Des Small, 24 February 2012 Setup group: 1 Station: SVETLOE 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= 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 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: 9 Setup file default. Used with PCAL = off LO sum= 8367.49 8367.49 8367.49 8367.49 8399.49 8399.49 8399.49 8399.49 8431.49 8431.49 8431.49 8431.49 8463.49 8463.49 8463.49 8463.49 BBC fr= 287.49 287.49 287.49 287.49 319.49 319.49 319.49 319.49 351.49 351.49 351.49 351.49 383.49 383.49 383.49 383.49 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: 9 10 11 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 26.909382 0.00 39 41 02.10308 * 39 24 21.03100 39 18 08.37909 0.00 From catalog imbedded in main SCHED input file. 1206+416 12 06 51.117947 * 12 09 22.788006 12 10 17.104280 0.17 * J1209+4119 41 36 22.62761 * 41 19 41.37011 41 13 28.11266 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 31 57.913458 0.17 J1331+3030 30 45 58.64066 * 30 30 32.95930 30 24 55.82973 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 sess318.X1024 1 2 3 4 5 6 7 8 9 1.166 65.270 J1209+4119 sess318.X1024 1 2 3 4 5 6 7 8 9 0.250 14.663 3C286 sess318.X1024 1 2 3 4 5 6 7 8 9 0.100 6.599 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 60.8 J1209+4119 62.5 3C286 45.6 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