COVER INFORMATION Station: YEBES40M (Code Ys ) 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 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 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: 589.49 589.49 589.49 589.49 653.49 653.49 653.49 653.49 717.49 717.49 717.49 717.49 781.49 781.49 781.49 781.49 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 10 02 42 46.8 86.4 -3.5 -61.6 0 0 17 00 00 17 02 00 --- 10 04 42 47.2 86.7 -3.5 -61.6 120 31 17 00 01 17 04 20 J1209+4119 10 07 03 66.8 78.1 -2.1 -81.5 106 31 17 04 20 17 06 20 =1206+416 10 09 03 67.2 78.2 -2.0 -81.7 120 62 17 04 21 17 06 20 NGC4151 10 09 03 66.6 82.9 -2.0 -77.1 -20 62 No stop 17 10 20 --- 10 13 04 67.4 83.4 -2.0 -77.4 220 124 17 06 21 17 10 20 J1209+4119 10 13 04 67.9 78.5 -2.0 -82.1 -20 124 No stop 17 12 20 =1206+416 10 15 04 68.3 78.7 -1.9 -82.3 100 155 17 10 21 17 12 20 NGC4151 10 15 04 67.7 83.6 -1.9 -77.5 -20 155 No stop 17 16 20 --- 10 19 05 68.5 84.1 -1.9 -77.7 220 216 17 12 21 17 17 00 J1209+4119 10 19 45 69.2 79.0 -1.8 -82.7 20 216 17 17 00 17 19 00 =1206+416 10 21 45 69.5 79.1 -1.8 -82.9 120 247 17 17 01 17 19 00 NGC4151 10 21 45 69.0 84.4 -1.8 -77.8 -20 247 No stop 17 23 00 --- 10 25 46 69.8 84.8 -1.8 -78.0 220 309 17 19 01 17 23 00 J1209+4119 10 25 46 70.3 79.4 -1.7 -83.4 -20 309 No stop 17 25 00 =1206+416 10 27 46 70.7 79.5 -1.7 -83.6 100 340 17 23 01 17 25 00 NGC4151 10 27 46 70.1 85.0 -1.7 -78.1 -21 340 No stop 17 29 00 --- 10 31 47 70.9 85.5 -1.7 -78.3 219 402 17 25 01 17 29 40 J1209+4119 10 32 27 71.5 79.8 -1.6 -84.1 19 402 17 29 40 17 31 40 =1206+416 10 34 27 71.9 79.9 -1.6 -84.3 120 433 17 29 41 17 31 40 NGC4151 10 34 27 71.4 85.8 -1.6 -78.4 -21 433 No stop 17 35 40 --- 10 38 28 72.2 86.3 -1.6 -78.6 219 495 17 31 41 17 35 40 J1209+4119 10 38 28 72.7 80.1 -1.5 -84.7 -21 495 No stop 17 37 40 =1206+416 10 40 28 73.0 80.3 -1.5 -84.9 99 526 17 35 41 17 37 40 NGC4151 10 40 28 72.5 86.6 -1.5 -78.7 -21 526 No stop 17 41 40 --- 10 44 29 73.3 87.1 -1.5 -78.8 219 587 17 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 10 Jun 2019 Day 161 --- 17 42 20 J1209+4119 10 45 09 73.9 80.5 -1.4 -85.4 18 587 17 42 20 17 44 20 =1206+416 10 47 09 74.3 80.6 -1.4 -85.7 120 618 17 42 21 17 44 20 NGC4151 10 47 09 73.8 87.5 -1.4 -78.9 -22 618 No stop 17 48 20 --- 10 51 10 74.6 88.0 -1.3 -79.0 218 680 17 44 21 17 48 20 J1209+4119 10 51 10 75.0 80.8 -1.3 -86.1 -22 680 No stop 17 50 20 =1206+416 10 53 10 75.4 80.9 -1.3 -86.4 98 711 17 48 21 17 50 20 NGC4151 10 53 10 75.0 88.3 -1.3 -79.1 -22 711 No stop 17 54 20 --- 10 57 11 75.7 88.9 -1.2 -79.2 218 773 17 50 21 17 55 00 J1209+4119 10 57 51 76.3 81.1 -1.2 -86.9 17 773 17 55 00 17 57 00 =1206+416 10 59 51 76.7 81.2 -1.2 -87.2 120 804 17 55 01 17 57 00 NGC4151 10 59 51 76.2 89.3 -1.2 -79.2 -23 804 No stop 18 01 00 --- 11 03 52 77.0 89.9 -1.1 -79.2 217 866 17 57 01 18 01 00 J1209+4119 11 03 52 77.4 81.4 -1.1 -87.7 -24 866 No stop 18 03 00 =1206+416 11 05 52 77.8 81.4 -1.1 -88.0 96 897 18 01 01 18 03 00 NGC4151 11 05 52 77.4 90.2 -1.1 -79.2 -24 897 No stop 18 07 00 --- 11 09 53 78.1 90.9 -1.0 -79.2 216 958 18 03 01 18 07 40 J1209+4119 11 10 33 78.7 81.6 -1.0 -88.6 16 958 18 07 40 18 09 40 =1206+416 11 12 34 79.1 81.6 -1.0 -88.9 120 989 18 07 41 18 09 40 NGC4151 11 12 34 78.6 91.4 -1.0 -79.1 -25 989 No stop 18 13 40 --- 11 16 34 79.4 92.2 -0.9 -79.0 215 1051 18 09 41 18 13 40 J1209+4119 11 16 34 79.8 81.7 -0.9 -89.5 -25 1051 No stop 18 15 40 =1206+416 11 18 35 80.2 81.7 -0.9 -89.8 95 1082 18 13 41 18 15 40 NGC4151 11 18 35 79.8 92.6 -0.9 -78.9 -26 1082 No stop 18 19 40 --- 11 22 35 80.5 93.5 -0.8 -78.7 214 1144 18 15 41 18 20 20 J1209+4119 11 23 15 81.1 81.7 -0.8 -90.6 13 1144 18 20 20 18 22 20 =1206+416 11 25 16 81.5 81.6 -0.8 -91.0 120 1175 18 20 21 18 22 20 NGC4151 11 25 16 81.1 94.1 -0.8 -78.5 -28 1175 No stop 18 26 20 --- 11 29 16 81.8 95.2 -0.7 -78.1 212 1237 18 22 21 18 26 20 J1209+4119 11 29 16 82.2 81.5 -0.7 -91.8 -29 1237 No stop 18 28 20 =1206+416 11 31 17 82.6 81.4 -0.7 -92.2 91 1268 18 26 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 ---------------------------------------------------------------------------------------- --- Mon 10 Jun 2019 Day 161 --- 18 28 20 NGC4151 11 31 17 82.2 95.7 -0.7 -77.8 -29 1268 No stop 18 32 20 --- 11 35 17 83.0 97.0 -0.6 -77.1 211 1329 18 28 21 18 33 00 J1209+4119 11 35 57 83.5 81.0 -0.6 -93.3 9 1329 18 33 00 18 35 00 =1206+416 11 37 58 83.8 80.8 -0.5 -93.9 120 1360 18 33 01 18 37 20 3C286 11 40 18 65.2 105.3 -1.9 -58.2 101 1360 18 37 20 18 40 00 --- 11 42 59 65.7 106.0 -1.8 -57.9 160 1402 18 37 21 ---------- Ef out for pointing ---------- 18 43 00 J1209+4119 11 45 59 85.3 79.4 -0.4 -96.6 139 1402 18 43 00 18 45 00 =1206+416 11 47 59 85.7 78.8 -0.4 -97.6 120 1432 18 43 01 18 45 00 NGC4151 11 47 59 85.3 103.3 -0.4 -73.0 -40 1432 No stop 18 48 30 --- 11 51 30 86.0 106.0 -0.3 -70.7 170 1487 18 45 01 18 49 10 J1209+4119 11 52 10 86.5 77.0 -0.3 -100.0 -4 1487 18 49 10 18 51 10 =1206+416 11 54 10 86.9 75.8 -0.3 -101.6 116 1517 18 49 11 ---------- Ef back ---------- 18 51 10 NGC4151 11 54 10 86.5 108.8 -0.3 -68.4 -49 1517 No stop 18 54 40 --- 11 57 41 87.1 113.6 -0.2 -64.2 161 1572 18 51 11 18 54 40 J1209+4119 11 57 41 87.5 72.7 -0.2 -105.3 -57 1572 No stop 18 56 40 =1206+416 11 59 41 87.9 70.0 -0.2 -108.3 63 1603 18 54 41 18 56 40 NGC4151 11 59 41 87.4 117.4 -0.2 -60.7 -64 1603 No stop 19 00 40 --- 12 03 42 88.1 128.6 -0.1 D -50.2 0 1664 18 56 41 19 16 00 NGC4151 12 19 04 88.1 230.5 0.1 D 49.3 898 1664 19 16 00 19 20 00 --- 12 23 05 87.5 242.1 0.2 60.2 0 1726 19 16 01 19 20 00 J1209+4119 12 23 05 87.5 287.3 0.2 105.2 -59 1726 No stop 19 22 00 =1206+416 12 25 05 87.1 285.3 0.2 102.9 61 1757 19 20 01 19 22 00 NGC4151 12 25 05 87.1 246.0 0.2 63.8 -53 1757 No stop 19 26 00 --- 12 29 06 86.4 251.5 0.3 68.7 187 1819 19 22 01 19 26 40 J1209+4119 12 29 46 86.3 282.4 0.3 99.2 -6 1819 19 26 40 19 28 40 =1206+416 12 31 47 85.9 281.6 0.4 98.1 114 1850 19 26 41 19 28 40 NGC4151 12 31 47 85.9 254.2 0.3 70.9 -42 1850 No stop 19 32 40 --- 12 35 47 85.2 257.3 0.4 73.4 198 1912 19 28 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 ---------------------------------------------------------------------------------------- --- Mon 10 Jun 2019 Day 161 --- 19 32 40 J1209+4119 12 35 47 85.1 280.4 0.4 96.2 -38 1912 No stop 19 34 40 =1206+416 12 37 48 84.8 279.9 0.5 95.4 82 1943 19 32 41 19 34 40 NGC4151 12 37 48 84.8 258.5 0.4 74.3 -36 1943 No stop 19 38 40 --- 12 41 48 84.1 260.6 0.5 75.7 204 2004 19 34 41 19 39 20 J1209+4119 12 42 28 83.9 279.2 0.5 93.9 6 2004 19 39 20 19 41 20 =1206+416 12 44 29 83.5 279.0 0.6 93.4 120 2035 19 39 21 19 41 20 NGC4151 12 44 29 83.6 261.7 0.5 76.4 -32 2035 No stop 19 45 20 --- 12 48 29 82.8 263.2 0.6 77.3 208 2097 19 41 21 19 45 20 J1209+4119 12 48 29 82.8 278.7 0.6 92.4 -30 2097 No stop 19 47 20 =1206+416 12 50 30 82.4 278.5 0.7 92.0 90 2128 19 45 21 19 47 20 NGC4151 12 50 30 82.4 263.9 0.6 77.6 -30 2128 No stop 19 51 20 --- 12 54 30 81.7 265.0 0.7 78.1 210 2190 19 47 21 19 52 00 J1209+4119 12 55 10 81.5 278.4 0.7 91.0 12 2190 19 52 00 19 54 00 =1206+416 12 57 11 81.1 278.3 0.8 90.7 120 2221 19 52 01 19 54 00 NGC4151 12 57 11 81.2 265.8 0.8 78.4 -28 2221 No stop 19 58 00 --- 13 01 11 80.4 266.7 0.8 78.7 212 2283 19 54 01 19 58 00 J1209+4119 13 01 11 80.4 278.3 0.8 90.0 -27 2283 No stop 20 00 00 =1206+416 13 03 12 80.0 278.3 0.9 89.7 93 2314 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 --- 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: 2048 Format: VDIF Bits per sample: 2 Sample rate: 64.000 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= 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= 589.49 589.49 589.49 589.49 653.49 653.49 653.49 653.49 717.49 717.49 717.49 717.49 781.49 781.49 781.49 781.49 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: 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 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