COVER INFORMATION Station: YEBES40M (Code Ys ) Experiment: The variable VLBI core of NGC 4151 Exp. Code: EP113D 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 YEBES40M (Code Ys ) 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 11 Mar 2019 Day 70 --- 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: 637.49 637.49 637.49 637.49 669.49 669.49 669.49 669.49 701.49 701.49 701.49 701.49 733.49 733.49 733.49 733.49 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 23 00 00 3C286 10 04 55 47.3 86.8 -3.5 -61.6 0 0 23 00 00 23 02 00 --- 10 06 55 47.6 87.1 -3.4 -61.7 120 15 23 00 01 23 04 20 J1209+4119 10 09 15 67.2 78.3 -2.0 -81.7 106 15 23 04 20 23 06 20 =1206+416 10 11 16 67.6 78.4 -2.0 -81.9 120 31 23 04 21 23 06 20 NGC4151 10 11 16 67.0 83.2 -2.0 -77.2 -20 31 No stop 23 10 20 --- 10 15 16 67.8 83.6 -1.9 -77.5 220 62 23 06 21 23 10 20 J1209+4119 10 15 16 68.3 78.7 -1.9 -82.3 -20 62 No stop 23 12 20 =1206+416 10 17 17 68.7 78.8 -1.9 -82.5 100 77 23 10 21 23 12 20 NGC4151 10 17 17 68.2 83.9 -1.9 -77.6 -20 77 No stop 23 16 20 --- 10 21 17 68.9 84.3 -1.8 -77.8 220 108 23 12 21 23 17 00 J1209+4119 10 21 57 69.6 79.1 -1.8 -82.9 20 108 23 17 00 23 19 00 =1206+416 10 23 58 70.0 79.3 -1.8 -83.2 120 124 23 17 01 23 19 00 NGC4151 10 23 58 69.4 84.6 -1.8 -77.9 -20 124 No stop 23 23 00 --- 10 27 58 70.2 85.1 -1.7 -78.1 220 155 23 19 01 23 23 00 J1209+4119 10 27 58 70.7 79.5 -1.7 -83.6 -21 155 No stop 23 25 00 =1206+416 10 29 59 71.1 79.6 -1.7 -83.8 99 170 23 23 01 23 25 00 NGC4151 10 29 59 70.6 85.3 -1.7 -78.2 -21 170 No stop 23 29 00 --- 10 33 59 71.3 85.8 -1.6 -78.4 219 201 23 25 01 23 29 40 J1209+4119 10 34 40 72.0 79.9 -1.6 -84.3 19 201 23 29 40 23 31 40 =1206+416 10 36 40 72.3 80.1 -1.6 -84.5 120 216 23 29 41 23 31 40 NGC4151 10 36 40 71.8 86.1 -1.6 -78.5 -21 216 No stop 23 35 40 --- 10 40 41 72.6 86.6 -1.5 -78.7 219 247 23 31 41 23 35 40 J1209+4119 10 40 41 73.1 80.3 -1.5 -84.9 -21 247 No stop 23 37 40 =1206+416 10 42 41 73.5 80.4 -1.5 -85.2 99 263 23 35 41 23 37 40 NGC4151 10 42 41 73.0 86.9 -1.5 -78.8 -22 263 No stop 23 41 40 --- 10 46 42 73.7 87.4 -1.4 -78.9 218 294 23 37 41 Schedule for YEBES40M (Code Ys ) 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 11 Mar 2019 Day 70 --- 23 42 20 J1209+4119 10 47 22 74.3 80.7 -1.4 -85.7 18 294 23 42 20 23 44 20 =1206+416 10 49 22 74.7 80.8 -1.3 -85.9 120 309 23 42 21 23 44 20 NGC4151 10 49 22 74.2 87.8 -1.4 -79.0 -22 309 No stop 23 48 20 --- 10 53 23 75.0 88.3 -1.3 -79.1 218 340 23 44 21 23 48 20 J1209+4119 10 53 23 75.5 81.0 -1.3 -86.4 -22 340 No stop 23 50 20 =1206+416 10 55 23 75.8 81.0 -1.2 -86.6 98 356 23 48 21 23 50 20 NGC4151 10 55 23 75.4 88.6 -1.3 -79.1 -23 356 No stop 23 54 20 --- 10 59 24 76.1 89.2 -1.2 -79.2 217 386 23 50 21 23 55 00 J1209+4119 11 00 04 76.7 81.2 -1.2 -87.2 17 386 23 55 00 23 57 00 =1206+416 11 02 04 77.1 81.3 -1.1 -87.5 120 402 23 55 01 --- Start: Mon 11 Mar 2019 Day 70 -- Stop: Tue 12 Mar 2019 Day 71 --- 23 57 00 NGC4151 11 02 04 76.6 89.6 -1.2 -79.2 -23 402 No stop 00 01 00 --- 11 06 05 77.4 90.3 -1.1 -79.2 217 433 23 57 01 00 01 00 J1209+4119 11 06 05 77.8 81.5 -1.1 -88.0 -24 433 No stop 00 03 00 =1206+416 11 08 05 78.2 81.5 -1.0 -88.3 96 448 00 01 01 00 03 00 NGC4151 11 08 05 77.8 90.6 -1.1 -79.2 -24 448 No stop 00 07 00 --- 11 12 06 78.6 91.3 -1.0 -79.1 216 479 00 03 01 00 07 40 J1209+4119 11 12 46 79.1 81.6 -1.0 -88.9 15 479 00 07 40 00 09 40 =1206+416 11 14 46 79.5 81.7 -0.9 -89.2 120 495 00 07 41 00 09 40 NGC4151 11 14 46 79.1 91.8 -0.9 -79.0 -25 495 No stop 00 13 40 --- 11 18 47 79.8 92.6 -0.9 -78.9 215 526 00 09 41 00 13 40 J1209+4119 11 18 47 80.2 81.7 -0.9 -89.8 -26 526 No stop 00 15 40 =1206+416 11 20 47 80.6 81.7 -0.8 -90.2 94 541 00 13 41 00 15 40 NGC4151 11 20 47 80.2 93.1 -0.8 -78.8 -26 541 No stop 00 19 40 --- 11 24 48 81.0 94.0 -0.8 -78.5 214 572 00 15 41 00 20 20 J1209+4119 11 25 28 81.5 81.6 -0.7 -91.0 13 572 00 20 20 00 22 20 =1206+416 11 27 28 81.9 81.6 -0.7 -91.4 120 587 00 20 21 00 22 20 NGC4151 11 27 28 81.5 94.7 -0.7 -78.2 -28 587 No stop 00 26 20 --- 11 31 29 82.2 95.8 -0.7 -77.7 212 618 00 22 21 Schedule for YEBES40M (Code Ys ) 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 12 Mar 2019 Day 71 --- 00 26 20 J1209+4119 11 31 29 82.6 81.4 -0.6 -92.2 -29 618 No stop 00 28 20 =1206+416 11 33 29 83.0 81.3 -0.6 -92.7 91 634 00 26 21 00 28 20 NGC4151 11 33 29 82.6 96.5 -0.6 -77.4 -30 634 No stop 00 32 20 --- 11 37 30 83.4 97.9 -0.6 -76.6 210 665 00 28 21 00 33 00 J1209+4119 11 38 10 83.9 80.8 -0.5 -93.9 8 665 00 33 00 00 35 00 =1206+416 11 40 10 84.3 80.6 -0.5 -94.5 120 680 00 33 01 00 37 20 3C286 11 42 31 65.6 105.9 -1.8 -58.0 100 680 00 37 20 00 40 00 --- 11 45 11 66.1 106.6 -1.8 -57.6 160 701 00 37 21 00 42 00 J1209+4119 11 47 11 85.6 79.1 -0.4 -97.1 78 701 00 42 00 00 44 00 =1206+416 11 49 12 85.9 78.4 -0.4 -98.1 120 716 00 42 01 00 44 00 NGC4151 11 49 12 85.5 104.2 -0.4 -72.2 -41 716 No stop 00 48 00 --- 11 53 12 86.3 107.8 -0.3 -69.3 199 747 00 44 01 00 48 40 J1209+4119 11 53 53 86.8 76.1 -0.3 -101.2 -7 747 00 48 40 00 50 40 =1206+416 11 55 53 87.2 74.5 -0.2 -103.1 113 763 00 48 41 00 50 40 NGC4151 11 55 53 86.8 111.0 -0.3 -66.5 -52 763 No stop 00 54 40 --- 11 59 54 87.5 117.9 -0.2 -60.3 188 794 00 50 41 00 54 40 J1209+4119 11 59 54 87.9 69.8 -0.2 -108.5 -65 794 No stop 00 56 40 =1206+416 12 01 54 88.3 65.8 -0.1 D -112.8 0 809 00 54 41 00 56 40 NGC4151 12 01 54 87.8 122.8 -0.2 -55.6 -75 809 No stop 01 00 40 --- 12 05 55 88.4 138.3 -0.1 D -40.8 0 840 00 56 41 01 14 00 J1209+4119 12 19 17 88.2 293.2 0.1 D 111.7 537 840 01 14 00 01 16 00 =1206+416 12 21 17 87.8 289.5 0.2 107.7 0 855 01 14 01 01 16 00 NGC4151 12 21 17 87.8 237.6 0.2 56.0 -65 855 No stop 01 20 00 --- 12 25 18 87.1 246.2 0.2 64.0 175 886 01 16 01 01 20 00 J1209+4119 12 25 18 87.1 285.1 0.2 102.6 -53 886 No stop 01 22 00 =1206+416 12 27 18 86.7 283.6 0.3 100.9 67 902 01 20 01 01 22 00 NGC4151 12 27 18 86.7 249.2 0.3 66.7 -49 902 No stop 01 26 00 --- 12 31 19 86.0 253.7 0.3 70.5 191 933 01 22 01 01 26 40 J1209+4119 12 31 59 85.9 281.4 0.4 97.9 -3 933 01 26 40 01 28 40 =1206+416 12 33 59 85.5 280.8 0.4 96.9 117 948 01 26 41 Schedule for YEBES40M (Code Ys ) 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 ---------------------------------------------------------------------------------------- --- Tue 12 Mar 2019 Day 71 --- 01 28 40 NGC4151 12 33 59 85.5 255.9 0.4 72.3 -40 948 No stop 01 32 40 --- 12 38 00 84.8 258.6 0.4 74.3 200 979 01 28 41 01 32 40 J1209+4119 12 38 00 84.7 279.8 0.5 95.3 -36 979 No stop 01 34 40 =1206+416 12 40 00 84.4 279.5 0.5 94.6 84 994 01 32 41 01 34 40 NGC4151 12 40 00 84.4 259.6 0.5 75.1 -35 994 No stop 01 38 40 --- 12 44 01 83.7 261.5 0.5 76.3 205 1025 01 34 41 01 39 20 J1209+4119 12 44 41 83.5 278.9 0.6 93.3 8 1025 01 39 20 01 41 20 =1206+416 12 46 41 83.1 278.8 0.6 92.8 120 1041 01 39 21 01 41 20 NGC4151 12 46 41 83.1 262.5 0.6 76.9 -31 1041 No stop 01 45 20 --- 12 50 42 82.4 263.9 0.7 77.6 209 1072 01 41 21 01 45 20 J1209+4119 12 50 42 82.3 278.5 0.7 91.9 -30 1072 No stop 01 47 20 =1206+416 12 52 42 82.0 278.4 0.7 91.5 90 1087 01 45 21 01 47 20 NGC4151 12 52 42 82.0 264.5 0.7 77.9 -29 1087 No stop 01 51 20 --- 12 56 43 81.3 265.6 0.8 78.3 211 1118 01 47 21 01 52 00 J1209+4119 12 57 23 81.1 278.3 0.8 90.6 12 1118 01 52 00 01 54 00 =1206+416 12 59 23 80.7 278.3 0.8 90.3 120 1134 01 52 01 01 54 00 NGC4151 12 59 23 80.7 266.3 0.8 78.6 -27 1134 No stop 01 58 00 --- 13 03 24 80.0 267.2 0.9 78.8 213 1165 01 54 01 01 58 00 J1209+4119 13 03 24 80.0 278.3 0.9 89.6 -26 1165 No stop 02 00 00 =1206+416 13 05 24 79.6 278.3 0.9 89.3 94 1180 01 58 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess119.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: 11 Station: YEBES40M 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= 21550.00 21550.00 21550.00 21550.00 21550.00 21550.00 21550.00 21550.00 21550.00 21550.00 21550.00 21550.00 21550.00 21550.00 21550.00 21550.00 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 = A4 C4 A4 C4 A4 C4 A4 C4 A4 C4 A4 C4 A4 C4 A4 C4 The following frequency sets based on these setups were used. Frequency Set: 9 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= 637.49 637.49 637.49 637.49 669.49 669.49 669.49 669.49 701.49 701.49 701.49 701.49 733.49 733.49 733.49 733.49 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 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 31.060957 0.00 39 41 02.10308 * 39 24 21.03100 39 17 54.18012 0.00 From catalog imbedded in main SCHED input file. 1206+416 12 06 51.117947 * 12 09 22.788006 12 10 21.343591 0.17 * J1209+4119 41 36 22.62761 * 41 19 41.37011 41 13 14.53916 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 01.677600 0.17 J1331+3030 30 45 58.64066 * 30 30 32.95930 30 24 33.31208 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 sess119.K1024 1 2 3 4 5 6 7 8 9 10 14 15 1.733 140.223 J1209+4119 sess119.K1024 1 2 3 4 5 6 7 8 9 10 14 15 0.933 77.892 3C286 sess119.K1024 1 2 3 4 5 6 7 8 9 10 14 15 0.078 9.942 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 142.8 J1209+4119 141.1 3C286 140.2 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