COVER INFORMATION Station: EFLSBERG (Code Ef ) Experiment: The variable VLBI core of NGC 4151 Exp. Code: EP113B 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 (1024 Mb/s) Notes: Target: NGC4151 Phase calibrator : J1209+4119 D-terms calibrator : -- Fringe finder : 3C286 Schedule for EFLSBERG (Code Ef ) 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 ---------------------------------------------------------------------------------------- --- Wed 7 Nov 2018 Day 311 --- 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: 687.49 687.49 687.49 687.49 719.49 719.49 719.49 719.49 751.49 751.49 751.49 751.49 783.49 783.49 783.49 783.49 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 00 00 3C286 10 33 17 51.3 104.0 -3.0 -45.7 0 0 07 00 00 07 02 00 --- 10 35 17 51.6 104.5 -2.9 -45.5 120 15 07 00 01 07 03 49 J1209+4119 10 37 07 71.4 111.0 -1.6 -52.1 0 15 07 03 49 07 04 49 =1206+416 10 38 07 71.6 111.4 -1.5 -51.9 60 23 07 03 50 07 05 36 NGC4151 10 38 54 70.3 115.7 -1.5 -47.7 0 23 07 05 36 07 08 36 --- 10 41 54 70.7 116.9 -1.5 -47.1 180 46 07 05 37 07 09 21 J1209+4119 10 42 40 72.2 113.1 -1.5 -51.0 0 46 07 09 21 07 10 21 =1206+416 10 43 40 72.4 113.5 -1.4 -50.8 60 54 07 09 22 07 11 08 NGC4151 10 44 27 71.1 117.9 -1.5 -46.5 0 54 07 11 08 07 14 08 --- 10 47 27 71.5 119.2 -1.4 -45.8 180 77 07 11 09 07 14 54 J1209+4119 10 48 13 73.0 115.3 -1.4 -49.8 0 77 07 14 54 07 15 54 =1206+416 10 49 13 73.2 115.8 -1.4 -49.6 60 85 07 14 55 07 16 41 NGC4151 10 50 01 71.8 120.3 -1.4 -45.2 0 85 07 16 41 07 19 41 --- 10 53 01 72.2 121.6 -1.3 -44.4 180 108 07 16 42 07 20 27 J1209+4119 10 53 47 73.8 117.7 -1.3 -48.4 0 108 07 20 27 07 21 27 =1206+416 10 54 48 74.0 118.2 -1.3 -48.2 60 116 07 20 28 07 22 15 NGC4151 10 55 35 72.6 122.8 -1.3 -43.7 0 116 07 22 15 07 25 15 --- 10 58 36 73.0 124.3 -1.2 -42.8 180 139 07 22 16 07 26 01 J1209+4119 10 59 22 74.6 120.3 -1.2 -46.8 0 139 07 26 01 07 27 01 =1206+416 11 00 22 74.7 120.8 -1.2 -46.5 60 147 07 26 02 07 27 48 NGC4151 11 01 10 73.3 125.5 -1.2 -42.0 0 147 07 27 48 07 30 48 --- 11 04 11 73.7 127.1 -1.1 -41.0 180 170 07 27 49 07 31 34 J1209+4119 11 04 57 75.4 123.2 -1.1 -45.0 0 170 07 31 34 07 32 34 =1206+416 11 05 57 75.5 123.7 -1.1 -44.7 60 178 07 31 35 07 33 22 NGC4151 11 06 45 74.0 128.4 -1.1 -40.1 0 178 07 33 22 07 36 22 --- 11 09 45 74.4 130.1 -1.0 -39.0 180 201 07 33 23 Schedule for EFLSBERG (Code Ef ) 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 ---------------------------------------------------------------------------------------- --- Wed 7 Nov 2018 Day 311 --- 07 37 08 J1209+4119 11 10 31 76.1 126.2 -1.0 -43.0 0 201 07 37 08 07 38 08 =1206+416 11 11 31 76.2 126.8 -1.0 -42.6 60 209 07 37 09 07 38 56 NGC4151 11 12 19 74.7 131.5 -1.0 -38.0 0 209 07 38 56 07 41 56 --- 11 15 20 75.1 133.3 -0.9 -36.7 180 232 07 38 57 07 42 42 J1209+4119 11 16 06 76.8 129.5 -0.9 -40.7 0 232 07 42 42 07 43 42 =1206+416 11 17 06 76.9 130.2 -0.9 -40.2 60 240 07 42 43 07 44 29 NGC4151 11 17 54 75.4 134.9 -0.9 -35.6 0 240 07 44 29 07 47 29 --- 11 20 54 75.7 136.8 -0.8 -34.2 180 263 07 44 30 07 48 14 J1209+4119 11 21 39 77.5 133.2 -0.8 -38.1 0 263 07 48 14 07 49 14 =1206+416 11 22 39 77.6 133.9 -0.8 -37.6 60 271 07 48 15 07 50 01 NGC4151 11 23 27 76.0 138.5 -0.8 -33.0 0 271 07 50 01 07 53 01 --- 11 26 27 76.3 140.5 -0.7 -31.5 180 294 07 50 02 07 53 46 J1209+4119 11 27 12 78.1 137.1 -0.7 -35.1 0 294 07 53 46 07 54 46 =1206+416 11 28 12 78.2 137.9 -0.7 -34.5 60 301 07 53 47 07 55 32 NGC4151 11 28 58 76.5 142.3 -0.7 -30.2 0 301 07 55 32 07 58 32 --- 11 31 59 76.8 144.5 -0.7 -28.5 180 325 07 55 33 07 59 15 J1209+4119 11 32 42 78.6 141.4 -0.6 -31.8 0 325 07 59 15 08 00 15 =1206+416 11 33 42 78.7 142.2 -0.6 -31.2 60 332 07 59 16 08 01 01 NGC4151 11 34 28 77.0 146.4 -0.6 -27.1 0 332 08 01 01 08 04 01 --- 11 37 28 77.3 148.7 -0.6 -25.3 180 356 08 01 02 08 04 42 J1209+4119 11 38 10 79.2 146.0 -0.5 -28.2 0 356 08 04 42 08 05 42 =1206+416 11 39 10 79.3 146.9 -0.5 -27.5 60 363 08 04 43 08 06 26 NGC4151 11 39 54 77.5 150.7 -0.5 -23.7 0 363 08 06 26 08 09 26 --- 11 42 55 77.7 153.2 -0.5 -21.8 180 386 08 06 27 08 10 05 J1209+4119 11 43 34 79.6 151.0 -0.4 -24.2 0 386 08 10 05 08 11 05 =1206+416 11 44 34 79.7 151.9 -0.4 -23.4 60 394 08 10 06 08 11 47 NGC4151 11 45 16 77.9 155.2 -0.4 -20.2 0 394 08 11 47 08 14 47 --- 11 48 16 78.1 157.8 -0.4 -18.1 180 417 08 11 48 08 15 24 J1209+4119 11 48 53 80.0 156.2 -0.4 -19.9 0 417 08 15 24 08 16 24 =1206+416 11 49 53 80.1 157.2 -0.3 -19.1 60 425 08 15 25 Schedule for EFLSBERG (Code Ef ) 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 ---------------------------------------------------------------------------------------- --- Wed 7 Nov 2018 Day 311 --- 08 17 02 NGC4151 11 50 32 78.2 159.8 -0.3 -16.4 0 425 08 17 02 08 20 02 --- 11 53 33 78.3 162.6 -0.3 -14.2 180 448 08 17 03 08 20 39 J1209+4119 11 54 10 80.3 161.7 -0.3 -15.4 0 448 08 20 39 08 21 39 =1206+416 11 55 10 80.3 162.8 -0.3 -14.5 60 456 08 20 40 08 22 16 NGC4151 11 55 46 78.4 164.7 -0.3 -12.5 0 456 08 22 16 08 25 16 --- 11 58 47 78.6 167.6 -0.2 -10.2 180 479 08 22 17 08 27 22 3C286 12 00 54 63.7 131.2 -1.5 -33.7 0 479 08 27 22 08 29 22 --- 12 02 54 63.9 132.0 -1.5 -33.2 120 495 08 27 23 08 33 14 J1209+4119 12 06 46 80.7 175.9 -0.1 -3.5 92 495 08 33 14 08 34 14 =1206+416 12 07 47 80.7 177.1 -0.0 -2.5 60 502 08 33 15 08 34 51 NGC4151 12 08 23 78.8 177.0 -0.1 -2.5 0 502 08 34 51 08 37 51 --- 12 11 24 78.8 179.9 -0.0 -0.0 180 526 08 34 52 08 38 27 J1209+4119 12 12 01 80.7 182.0 0.0 1.7 0 526 08 38 27 08 39 27 =1206+416 12 13 01 80.7 183.2 0.0 2.7 60 533 08 38 28 08 40 04 NGC4151 12 13 38 78.8 182.2 0.0 1.8 0 533 08 40 04 08 43 04 --- 12 16 38 78.7 185.1 0.1 4.2 180 556 08 40 05 08 43 44 J1209+4119 12 17 18 80.6 188.1 0.1 6.9 0 556 08 43 44 08 44 44 =1206+416 12 18 18 80.6 189.3 0.1 7.8 60 564 08 43 45 08 45 22 NGC4151 12 18 56 78.7 187.4 0.1 6.1 0 564 08 45 22 08 48 22 --- 12 21 57 78.6 190.3 0.2 8.5 180 587 08 45 23 08 49 06 J1209+4119 12 22 41 80.5 194.2 0.2 12.0 0 587 08 49 06 08 50 06 =1206+416 12 23 41 80.4 195.3 0.2 12.9 60 595 08 49 07 08 50 47 NGC4151 12 24 22 78.5 192.7 0.2 10.4 0 595 08 50 47 08 53 47 --- 12 27 23 78.4 195.5 0.3 12.7 180 618 08 50 48 08 54 34 J1209+4119 12 28 09 80.2 200.1 0.3 16.9 0 618 08 54 34 08 55 34 =1206+416 12 29 10 80.1 201.2 0.3 17.8 60 626 08 54 35 08 56 18 NGC4151 12 29 54 78.3 197.9 0.3 14.6 0 626 08 56 18 08 59 18 --- 12 32 54 78.2 200.6 0.4 16.8 180 649 08 56 19 09 00 07 J1209+4119 12 33 43 79.9 205.8 0.4 21.6 0 649 09 00 07 09 01 07 =1206+416 12 34 43 79.8 206.8 0.4 22.4 60 657 09 00 08 Schedule for EFLSBERG (Code Ef ) 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 ---------------------------------------------------------------------------------------- --- Wed 7 Nov 2018 Day 311 --- 09 01 57 NGC4151 12 35 34 78.0 203.0 0.4 18.7 4 657 09 01 57 09 04 57 --- 12 38 34 77.8 205.6 0.5 20.8 180 680 09 01 58 09 05 57 J1209+4119 12 39 35 79.4 211.4 0.5 26.1 9 680 09 05 57 09 06 57 =1206+416 12 40 35 79.3 212.3 0.5 26.9 60 688 09 05 58 09 07 45 NGC4151 12 41 23 77.6 208.0 0.5 22.7 0 688 09 07 45 09 10 45 --- 12 44 23 77.4 210.5 0.5 24.6 180 711 09 07 46 09 11 36 J1209+4119 12 45 15 78.9 216.4 0.6 30.1 0 711 09 11 36 09 12 36 =1206+416 12 46 15 78.8 217.3 0.6 30.8 60 719 09 11 37 09 13 25 NGC4151 12 47 04 77.1 212.6 0.6 26.3 0 719 09 13 25 09 16 25 --- 12 50 05 76.9 214.9 0.6 28.0 180 742 09 13 26 09 17 18 J1209+4119 12 50 57 78.3 221.0 0.7 33.7 0 742 09 17 18 09 18 18 =1206+416 12 51 57 78.2 221.8 0.7 34.3 60 750 09 17 19 09 19 07 NGC4151 12 52 47 76.6 216.9 0.7 29.5 0 750 09 19 07 09 22 07 --- 12 55 48 76.3 219.0 0.7 31.2 180 773 09 19 08 09 23 00 J1209+4119 12 56 40 77.7 225.3 0.8 36.9 0 773 09 23 00 09 24 00 =1206+416 12 57 40 77.6 226.0 0.8 37.4 60 781 09 23 01 09 24 50 NGC4151 12 58 31 76.1 220.9 0.8 32.5 0 781 09 24 50 09 27 50 --- 13 01 31 75.7 222.9 0.8 34.0 180 804 09 24 51 09 28 54 J1209+4119 13 02 35 77.0 229.3 0.9 39.8 11 804 09 28 54 09 29 54 =1206+416 13 03 36 76.9 229.9 0.9 40.3 60 812 09 28 55 09 30 51 NGC4151 13 04 32 75.4 224.8 0.9 35.4 6 812 09 30 51 09 33 51 --- 13 07 33 75.1 226.7 0.9 36.7 180 835 09 30 52 09 34 43 J1209+4119 13 08 26 76.3 232.8 1.0 42.4 0 835 09 34 43 09 35 43 =1206+416 13 09 26 76.2 233.4 1.0 42.8 60 842 09 34 44 09 36 33 NGC4151 13 10 16 74.7 228.3 1.0 37.8 0 842 09 36 33 09 39 33 --- 13 13 17 74.4 230.0 1.0 39.0 180 866 09 36 34 09 40 26 J1209+4119 13 14 09 75.6 236.1 1.1 44.5 0 866 09 40 26 09 41 26 =1206+416 13 15 09 75.4 236.6 1.1 44.9 60 873 09 40 27 09 42 16 NGC4151 13 15 59 74.0 231.5 1.1 40.0 0 873 09 42 16 09 45 16 --- 13 19 00 73.7 233.1 1.1 41.1 180 897 09 42 17 Schedule for EFLSBERG (Code Ef ) Page 6 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 ---------------------------------------------------------------------------------------- --- Wed 7 Nov 2018 Day 311 --- 09 46 08 J1209+4119 13 19 52 74.8 239.0 1.2 46.4 0 897 09 46 08 09 47 08 =1206+416 13 20 52 74.7 239.5 1.2 46.7 60 904 09 46 09 09 47 57 NGC4151 13 21 42 73.3 234.5 1.2 42.0 0 904 09 47 57 09 49 10 --- 13 22 55 73.2 235.1 1.2 42.3 73 914 09 47 58 09 50 02 J1209+4119 13 23 47 74.3 240.9 1.2 47.6 0 914 09 50 02 09 51 02 =1206+416 13 24 47 74.1 241.4 1.2 47.9 60 921 09 50 03 09 58 00 3C286 13 31 46 69.9 179.9 -0.0 -0.1 225 921 09 58 00 10 00 00 --- 13 33 46 69.9 181.1 0.0 0.8 120 937 09 58 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess318.K1024 Matching groups in /home/guest/rmc/SCHED/sched11.5/catalogs/freq_RDBE.dat: ef1cm_d 1.3cm secondary focus, IF 500-1000 MHz ****** Only 128.00 of 256.00 MHz total bandwidth is within the IFs in the setup file before any FREQ or DOPPLER shifts. Setup group: 4 Station: EFLSBERG Total bit rate: 1024 Format: VDIF Bits per sample: 2 Sample rate: 32.000 Number of channels: 16 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 21500.00 21500.00 21500.00 21500.00 21500.00 21500.00 21500.00 21500.00 21500.00 21500.00 21500.00 21500.00 21500.00 21500.00 21500.00 21500.00 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 = A1 C3 A1 C3 A1 C3 A1 C3 A1 C3 A1 C3 A1 C3 A1 C3 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= 687.49 687.49 687.49 687.49 719.49 719.49 719.49 719.49 751.49 751.49 751.49 751.49 783.49 783.49 783.49 783.49 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: 2 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) * NGC4151 12 08 01.055801 * 12 10 32.583400 12 11 27.093464 0.00 39 41 02.10308 * 39 24 21.03100 39 18 06.07593 0.00 From catalog imbedded in main SCHED input file. 1206+416 12 06 51.117947 * 12 09 22.788006 12 10 17.293473 0.17 * J1209+4119 41 36 22.62761 * 41 19 41.37011 41 13 25.77323 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 58.011500 0.17 J1331+3030 30 45 58.64066 * 30 30 32.95930 30 24 53.55359 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.K1024 1 2 3 4 5 6 7 8 9 10 14 15 1.420 132.674 J1209+4119 sess318.K1024 1 2 3 4 5 6 7 8 9 10 14 15 0.500 48.924 3C286 sess318.K1024 1 2 3 4 5 6 7 8 9 10 14 15 0.100 11.666 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 66.7 J1209+4119 68.3 3C286 50.3 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