COVER INFORMATION Station: EFLSBERG (Code Ef ) 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 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 ---------------------------------------------------------------------------------------- --- 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: 639.49 639.49 639.49 639.49 703.49 703.49 703.49 703.49 767.49 767.49 767.49 767.49 831.49 831.49 831.49 831.49 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 42 35 52.7 106.3 -2.8 -45.0 0 0 17 00 00 17 02 00 --- 10 44 35 53.0 106.8 -2.8 -44.9 120 31 17 00 01 17 04 20 J1209+4119 10 46 56 72.8 114.8 -1.4 -50.1 31 31 17 04 20 17 06 20 =1206+416 10 48 56 73.1 115.6 -1.4 -49.7 120 62 17 04 21 17 06 20 NGC4151 10 48 56 71.7 119.8 -1.4 -45.5 -47 62 No stop 17 10 20 --- 10 52 57 72.2 121.6 -1.3 -44.4 193 124 17 06 21 17 10 20 J1209+4119 10 52 57 73.7 117.3 -1.3 -48.7 -46 124 No stop 17 12 20 =1206+416 10 54 57 74.0 118.2 -1.3 -48.1 74 155 17 10 21 17 12 20 NGC4151 10 54 57 72.5 122.5 -1.3 -43.9 -48 155 No stop 17 16 20 --- 10 58 58 73.0 124.4 -1.2 -42.7 192 216 17 12 21 17 17 00 J1209+4119 10 59 38 74.6 120.4 -1.2 -46.8 -6 216 17 17 00 17 19 00 =1206+416 11 01 38 74.9 121.4 -1.1 -46.2 114 247 17 17 01 17 19 00 NGC4151 11 01 38 73.4 125.7 -1.2 -41.8 -48 247 No stop 17 23 00 --- 11 05 39 73.9 127.8 -1.1 -40.5 192 309 17 19 01 17 23 00 J1209+4119 11 05 39 75.5 123.5 -1.1 -44.8 -46 309 No stop 17 25 00 =1206+416 11 07 39 75.7 124.6 -1.0 -44.1 74 340 17 23 01 17 25 00 NGC4151 11 07 39 74.1 128.9 -1.1 -39.8 -48 340 No stop 17 29 00 --- 11 11 40 74.6 131.1 -1.0 -38.2 192 402 17 25 01 17 29 40 J1209+4119 11 12 20 76.3 127.2 -1.0 -42.3 -6 402 17 29 40 17 31 40 =1206+416 11 14 20 76.6 128.4 -0.9 -41.5 114 433 17 29 41 17 31 40 NGC4151 11 14 20 74.9 132.7 -1.0 -37.2 -48 433 No stop 17 35 40 --- 11 18 21 75.4 135.1 -0.9 -35.4 192 495 17 31 41 17 35 40 J1209+4119 11 18 21 77.1 130.9 -0.9 -39.7 -45 495 No stop 17 37 40 =1206+416 11 20 21 77.3 132.2 -0.8 -38.7 75 526 17 35 41 17 37 40 NGC4151 11 20 21 75.6 136.4 -0.9 -34.5 -48 526 No stop 17 41 40 --- 11 24 22 76.1 139.0 -0.8 -32.6 192 587 17 37 41 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 ---------------------------------------------------------------------------------------- --- Mon 10 Jun 2019 Day 161 --- 17 42 20 J1209+4119 11 25 02 77.8 135.5 -0.8 -36.3 -5 587 17 42 20 17 44 20 =1206+416 11 27 02 78.1 137.0 -0.7 -35.2 115 618 17 42 21 17 44 20 NGC4151 11 27 02 76.3 140.9 -0.7 -31.2 -47 618 No stop 17 48 20 --- 11 31 03 76.7 143.7 -0.7 -29.1 193 680 17 44 21 17 48 20 J1209+4119 11 31 03 78.5 140.0 -0.7 -32.9 -43 680 No stop 17 50 20 =1206+416 11 33 03 78.7 141.6 -0.6 -31.6 77 711 17 48 21 17 50 20 NGC4151 11 33 03 76.9 145.2 -0.6 -27.9 -46 711 No stop 17 54 20 --- 11 37 04 77.2 148.3 -0.6 -25.5 194 773 17 50 21 17 55 00 J1209+4119 11 37 44 79.1 145.6 -0.5 -28.5 -2 773 17 55 00 17 57 00 =1206+416 11 39 44 79.3 147.4 -0.5 -27.1 118 804 17 55 01 17 57 00 NGC4151 11 39 44 77.5 150.5 -0.5 -23.9 -44 804 No stop 18 01 00 --- 11 43 45 77.8 153.8 -0.5 -21.2 196 866 17 57 01 18 01 00 J1209+4119 11 43 45 79.6 151.1 -0.4 -24.1 -39 866 No stop 18 03 00 =1206+416 11 45 45 79.8 153.0 -0.4 -22.5 81 897 18 01 01 18 03 00 NGC4151 11 45 45 77.9 155.6 -0.4 -19.9 -41 897 No stop 18 07 00 --- 11 49 46 78.1 159.1 -0.4 -17.0 199 958 18 03 01 18 07 40 J1209+4119 11 50 26 80.1 157.7 -0.3 -18.7 3 958 18 07 40 18 09 40 =1206+416 11 52 26 80.2 159.8 -0.3 -16.9 120 989 18 07 41 18 09 40 NGC4151 11 52 26 78.3 161.5 -0.3 -15.1 -37 989 No stop 18 13 40 --- 11 56 27 78.5 165.3 -0.3 -12.1 203 1051 18 09 41 18 13 40 J1209+4119 11 56 27 80.4 164.2 -0.2 -13.3 -37 1051 No stop 18 15 40 =1206+416 11 58 27 80.5 166.4 -0.2 -11.5 83 1082 18 13 41 18 15 40 NGC4151 11 58 27 78.5 167.2 -0.2 -10.5 -37 1082 No stop 18 19 40 --- 12 02 28 78.7 171.1 -0.2 -7.3 203 1144 18 15 41 18 20 20 J1209+4119 12 03 08 80.6 171.7 -0.1 -7.0 3 1144 18 20 20 18 22 20 =1206+416 12 05 09 80.7 174.0 -0.1 -5.1 120 1175 18 20 21 18 22 20 NGC4151 12 05 09 78.7 173.7 -0.1 -5.2 -37 1175 No stop 18 26 20 --- 12 09 09 78.8 177.7 -0.0 -1.9 203 1237 18 22 21 18 26 20 J1209+4119 12 09 09 80.7 178.6 -0.0 -1.2 -37 1237 No stop 18 28 20 =1206+416 12 11 10 80.7 180.9 0.0 0.8 83 1268 18 26 21 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 ---------------------------------------------------------------------------------------- --- Mon 10 Jun 2019 Day 161 --- 18 28 20 NGC4151 12 11 10 78.8 179.7 -0.0 -0.3 -37 1268 No stop 18 32 20 --- 12 15 10 78.8 183.6 0.1 3.0 203 1329 18 28 21 18 33 00 J1209+4119 12 15 50 80.7 186.4 0.1 5.4 1 1329 18 33 00 18 35 00 =1206+416 12 17 51 80.6 188.7 0.1 7.3 120 1360 18 33 01 18 37 20 3C286 12 20 11 65.8 139.5 -1.2 -28.6 -17 1360 18 37 20 18 40 00 --- 12 22 51 66.1 140.7 -1.2 -27.8 143 1402 18 37 21 ---------- Ef back ---------- 18 51 10 NGC4151 12 34 03 78.1 201.6 0.4 17.6 503 1402 18 51 10 18 54 40 --- 12 37 34 77.9 204.7 0.4 20.1 210 1456 18 51 11 18 54 40 J1209+4119 12 37 34 79.6 209.5 0.5 24.6 -50 1456 No stop 18 56 40 =1206+416 12 39 34 79.4 211.4 0.5 26.1 70 1487 18 54 41 18 56 40 NGC4151 12 39 34 77.7 206.4 0.5 21.4 -48 1487 No stop 19 00 40 --- 12 43 35 77.4 209.8 0.5 24.1 192 1548 18 56 41 19 01 20 J1209+4119 12 44 15 79.0 215.5 0.6 29.4 -12 1548 19 01 20 19 03 20 =1206+416 12 46 15 78.8 217.2 0.6 30.8 108 1579 19 01 21 19 03 20 NGC4151 12 46 15 77.2 211.9 0.6 25.7 -49 1579 No stop 19 07 20 --- 12 50 16 76.9 215.0 0.6 28.1 191 1641 19 03 21 19 07 20 J1209+4119 12 50 16 78.4 220.5 0.7 33.3 -52 1641 No stop 19 09 20 =1206+416 12 52 16 78.2 222.0 0.7 34.4 68 1672 19 07 21 19 09 20 NGC4151 12 52 16 76.7 216.5 0.7 29.2 -50 1672 No stop 19 13 20 --- 12 56 17 76.3 219.3 0.7 31.4 190 1734 19 09 21 19 14 00 J1209+4119 12 56 57 77.7 225.4 0.8 37.0 -13 1734 19 14 00 19 16 00 =1206+416 12 58 57 77.5 226.8 0.8 38.1 107 1765 19 14 01 19 16 00 NGC4151 12 58 57 76.0 221.2 0.8 32.7 -50 1765 No stop 19 20 00 --- 13 02 58 75.6 223.8 0.9 34.7 190 1827 19 16 01 19 20 00 J1209+4119 13 02 58 77.0 229.5 0.9 40.0 -53 1827 No stop 19 22 00 =1206+416 13 04 58 76.7 230.7 0.9 40.9 67 1858 19 20 01 19 22 00 NGC4151 13 04 58 75.4 225.1 0.9 35.6 -50 1858 No stop 19 26 00 --- 13 08 59 74.9 227.5 1.0 37.3 190 1919 19 22 01 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 ---------------------------------------------------------------------------------------- --- Mon 10 Jun 2019 Day 161 --- 19 26 40 J1209+4119 13 09 39 76.2 233.5 1.0 42.8 -12 1919 19 26 40 19 28 40 =1206+416 13 11 39 75.9 234.7 1.0 43.6 108 1950 19 26 41 19 28 40 NGC4151 13 11 39 74.6 229.1 1.0 38.4 -50 1950 No stop 19 32 40 --- 13 15 40 74.1 231.3 1.1 39.9 190 2012 19 28 41 19 32 40 J1209+4119 13 15 40 75.4 236.8 1.1 45.0 -52 2012 No stop 19 34 40 =1206+416 13 17 40 75.1 237.9 1.1 45.7 68 2043 19 32 41 19 34 40 NGC4151 13 17 40 73.8 232.4 1.1 40.6 -50 2043 No stop 19 38 40 --- 13 21 41 73.3 234.4 1.2 41.9 190 2105 19 34 41 19 39 20 J1209+4119 13 22 21 74.5 240.2 1.2 47.2 -12 2105 19 39 20 19 41 20 =1206+416 13 24 22 74.2 241.1 1.2 47.8 108 2136 19 39 21 19 41 20 NGC4151 13 24 22 73.0 235.7 1.2 42.8 -50 2136 No stop 19 45 20 --- 13 28 22 72.5 237.6 1.3 44.0 190 2198 19 41 21 19 45 20 J1209+4119 13 28 22 73.6 242.9 1.3 48.8 -51 2198 No stop 19 47 20 =1206+416 13 30 23 73.3 243.8 1.3 49.3 69 2229 19 45 21 19 47 20 NGC4151 13 30 23 72.2 238.6 1.3 44.5 -49 2229 No stop 19 51 20 --- 13 34 23 71.6 240.3 1.4 45.5 191 2290 19 47 21 19 52 00 J1209+4119 13 35 03 72.7 245.8 1.4 50.4 -11 2290 19 52 00 19 54 00 =1206+416 13 37 04 72.4 246.5 1.4 50.8 109 2321 19 52 01 19 54 00 NGC4151 13 37 04 71.3 241.5 1.4 46.2 -49 2321 No stop 19 58 00 --- 13 41 04 70.7 243.1 1.5 47.1 191 2383 19 54 01 19 58 00 J1209+4119 13 41 04 71.8 248.1 1.5 51.6 -50 2383 No stop 20 00 00 =1206+416 13 43 05 71.5 248.8 1.5 52.0 70 2414 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: ef1cm_d 1.3cm secondary focus, IF 500-1000 MHz ****** Only 256.00 of 512.00 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: 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= 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= 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= 639.49 639.49 639.49 639.49 703.49 703.49 703.49 703.49 767.49 767.49 767.49 767.49 831.49 831.49 831.49 831.49 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: 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 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