COVER INFORMATION Station: URUMQI (Code Ur ) 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 URUMQI (Code Ur ) 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: 139.49 139.49 139.49 139.49 203.49 203.49 203.49 203.49 267.49 267.49 267.49 267.49 331.49 331.49 331.49 331.49 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 16 03 46 57.3 259.3 2.5 55.8 0 0 17 00 00 17 02 00 --- 16 05 46 57.0 259.7 2.6 55.9 120 31 17 00 01 17 04 20 J1209+4119 16 08 06 47.0 288.4 4.0 66.3 108 31 17 04 20 17 06 20 =1206+416 16 10 07 46.6 288.6 4.0 66.1 120 62 17 04 21 17 06 20 NGC4151 16 10 07 46.0 285.9 4.0 64.4 -7 62 No stop 17 10 20 --- 16 14 07 45.3 286.4 4.0 64.1 233 123 17 06 21 17 10 20 J1209+4119 16 14 07 45.9 289.0 4.1 65.8 -7 123 No stop 17 12 20 =1206+416 16 16 08 45.6 289.3 4.1 65.6 113 154 17 10 21 17 12 20 NGC4151 16 16 08 45.0 286.7 4.1 64.0 -7 154 No stop 17 16 20 --- 16 20 08 44.3 287.1 4.1 63.7 233 215 17 12 21 17 17 00 J1209+4119 16 20 48 44.8 289.8 4.2 65.2 33 215 17 17 00 17 19 00 =1206+416 16 22 49 44.4 290.0 4.2 65.0 120 246 17 17 01 17 19 00 NGC4151 16 22 49 43.8 287.5 4.2 63.5 -7 246 No stop 17 23 00 --- 16 26 49 43.1 287.9 4.3 63.2 233 308 17 19 01 17 23 00 J1209+4119 16 26 49 43.8 290.5 4.3 64.7 -7 308 No stop 17 25 00 =1206+416 16 28 50 43.4 290.7 4.3 64.5 113 338 17 23 01 17 25 00 NGC4151 16 28 50 42.8 288.2 4.3 63.0 -6 338 No stop 17 29 00 --- 16 32 50 42.1 288.7 4.4 62.7 234 400 17 25 01 17 29 40 J1209+4119 16 33 31 42.6 291.2 4.4 64.1 34 400 17 29 40 17 31 40 =1206+416 16 35 31 42.3 291.4 4.4 63.9 120 431 17 29 41 17 31 40 NGC4151 16 35 31 41.6 289.0 4.4 62.5 -6 431 No stop 17 35 40 --- 16 39 32 40.9 289.5 4.5 62.2 234 492 17 31 41 17 35 40 J1209+4119 16 39 32 41.6 291.9 4.5 63.6 -6 492 No stop 17 37 40 =1206+416 16 41 32 41.3 292.1 4.5 63.4 114 523 17 35 41 17 37 40 NGC4151 16 41 32 40.6 289.7 4.5 62.0 -6 523 No stop 17 41 40 --- 16 45 33 39.9 290.2 4.6 61.7 234 585 17 37 41 Schedule for URUMQI (Code Ur ) 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 16 46 13 40.5 292.6 4.6 63.0 34 585 17 42 20 17 44 20 =1206+416 16 48 13 40.2 292.8 4.6 62.8 120 615 17 42 21 17 44 20 NGC4151 16 48 13 39.5 290.5 4.6 61.5 -6 615 No stop 17 48 20 --- 16 52 14 38.8 291.0 4.7 61.1 234 677 17 44 21 17 48 20 J1209+4119 16 52 14 39.5 293.3 4.7 62.4 -6 677 No stop 17 50 20 =1206+416 16 54 14 39.2 293.5 4.7 62.2 114 708 17 48 21 17 50 20 NGC4151 16 54 14 38.4 291.2 4.7 61.0 -6 708 No stop 17 54 20 --- 16 58 15 37.8 291.7 4.8 60.6 234 769 17 50 21 17 55 00 J1209+4119 16 58 55 38.4 294.1 4.8 61.8 34 769 17 55 00 17 57 00 =1206+416 17 00 55 38.0 294.3 4.8 61.6 120 800 17 55 01 17 57 00 NGC4151 17 00 55 37.3 292.0 4.8 60.4 -6 800 No stop 18 01 00 --- 17 04 56 36.6 292.5 4.9 60.0 234 862 17 57 01 18 01 00 J1209+4119 17 04 56 37.4 294.7 4.9 61.2 -6 862 No stop 18 03 00 =1206+416 17 06 56 37.0 295.0 4.9 61.0 114 892 18 01 01 18 03 00 NGC4151 17 06 56 36.3 292.7 4.9 59.9 -6 892 No stop 18 07 00 --- 17 10 57 35.6 293.2 5.0 59.5 234 954 18 03 01 18 07 40 J1209+4119 17 11 37 36.3 295.5 5.0 60.6 34 954 18 07 40 18 09 40 =1206+416 17 13 37 36.0 295.7 5.1 60.4 120 985 18 07 41 18 09 40 NGC4151 17 13 37 35.2 293.6 5.0 59.3 -6 985 No stop 18 13 40 --- 17 17 38 34.5 294.0 5.1 58.9 234 1046 18 09 41 18 13 40 J1209+4119 17 17 38 35.3 296.2 5.1 60.0 -6 1046 No stop 18 15 40 =1206+416 17 19 38 35.0 296.4 5.2 59.8 114 1077 18 13 41 18 15 40 NGC4151 17 19 38 34.2 294.3 5.1 58.7 -6 1077 No stop 18 19 40 --- 17 23 39 33.5 294.8 5.2 58.4 234 1138 18 15 41 18 20 20 J1209+4119 17 24 19 34.2 297.0 5.2 59.3 34 1138 18 20 20 18 22 20 =1206+416 17 26 19 33.9 297.2 5.3 59.1 120 1169 18 20 21 18 22 20 NGC4151 17 26 19 33.1 295.1 5.2 58.1 -6 1169 No stop 18 26 20 --- 17 30 20 32.4 295.6 5.3 57.8 234 1231 18 22 21 18 26 20 J1209+4119 17 30 20 33.2 297.7 5.3 58.7 -6 1231 No stop 18 28 20 =1206+416 17 32 20 32.9 297.9 5.4 58.5 114 1262 18 26 21 Schedule for URUMQI (Code Ur ) 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 17 32 20 32.1 295.8 5.3 57.6 -6 1262 No stop 18 32 20 --- 17 36 21 31.4 296.3 5.4 57.2 234 1323 18 28 21 18 33 00 J1209+4119 17 37 01 32.2 298.5 5.4 58.0 34 1323 18 33 00 18 35 00 =1206+416 17 39 01 31.9 298.7 5.5 57.8 120 1354 18 33 01 18 37 20 3C286 17 41 22 39.7 276.9 4.2 56.7 114 1354 18 37 20 18 40 00 --- 17 44 02 39.2 277.3 4.2 56.6 160 1395 18 37 21 ---------- Ef out for pointing ---------- 18 43 00 J1209+4119 17 47 03 30.6 299.6 5.6 57.0 154 1395 18 43 00 18 45 00 =1206+416 17 49 03 30.3 299.9 5.6 56.8 120 1426 18 43 01 18 45 00 NGC4151 17 49 03 29.4 297.9 5.6 56.0 -6 1426 No stop 18 48 30 --- 17 52 34 28.8 298.3 5.7 55.6 204 1479 18 45 01 18 49 10 J1209+4119 17 53 14 29.6 300.4 5.7 56.3 34 1479 18 49 10 18 51 10 =1206+416 17 55 14 29.3 300.6 5.7 56.1 120 1510 18 49 11 ---------- Ef back ---------- 18 51 10 NGC4151 17 55 14 28.4 298.7 5.7 55.4 -6 1510 No stop 18 54 40 --- 17 58 45 27.8 299.1 5.8 55.0 204 1564 18 51 11 18 54 40 J1209+4119 17 58 45 28.8 301.0 5.8 55.8 -6 1564 No stop 18 56 40 =1206+416 18 00 45 28.4 301.3 5.8 55.5 114 1595 18 54 41 18 56 40 NGC4151 18 00 45 27.5 299.4 5.8 54.8 -6 1595 No stop 19 00 40 --- 18 04 46 26.9 299.9 5.9 54.4 234 1656 18 56 41 19 01 20 J1209+4119 18 05 26 27.7 301.9 5.9 55.0 34 1656 19 01 20 19 03 20 =1206+416 18 07 26 27.4 302.1 6.0 54.8 120 1687 19 01 21 19 03 20 NGC4151 18 07 26 26.5 300.2 5.9 54.2 -6 1687 No stop 19 07 20 --- 18 11 27 25.8 300.7 6.0 53.7 234 1749 19 03 21 19 07 20 J1209+4119 18 11 27 26.8 302.6 6.0 54.4 -6 1749 No stop 19 09 20 =1206+416 18 13 27 26.5 302.8 6.1 54.2 114 1779 19 07 21 19 09 20 NGC4151 18 13 27 25.5 301.0 6.0 53.5 -6 1779 No stop 19 13 20 --- 18 17 28 24.9 301.5 6.1 53.1 234 1841 19 09 21 19 14 00 J1209+4119 18 18 08 25.8 303.4 6.1 53.7 34 1841 19 14 00 19 16 00 =1206+416 18 20 08 25.5 303.7 6.2 53.4 120 1872 19 14 01 Schedule for URUMQI (Code Ur ) 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 16 00 NGC4151 18 20 08 24.5 301.8 6.1 52.8 -6 1872 No stop 19 20 00 --- 18 24 09 23.9 302.3 6.2 52.4 234 1933 19 16 01 19 20 00 J1209+4119 18 24 09 24.9 304.2 6.2 53.0 -6 1933 No stop 19 22 00 =1206+416 18 26 09 24.6 304.4 6.3 52.8 114 1964 19 20 01 19 22 00 NGC4151 18 26 09 23.6 302.6 6.2 52.2 -6 1964 No stop 19 26 00 --- 18 30 10 23.0 303.1 6.3 51.8 234 2026 19 22 01 19 26 40 J1209+4119 18 30 50 23.9 305.0 6.3 52.2 34 2026 19 26 40 19 28 40 =1206+416 18 32 50 23.6 305.2 6.4 52.0 120 2056 19 26 41 19 28 40 NGC4151 18 32 50 22.6 303.5 6.4 51.5 -6 2056 No stop 19 32 40 --- 18 36 51 22.0 304.0 6.4 51.0 234 2118 19 28 41 19 32 40 J1209+4119 18 36 51 23.0 305.8 6.4 51.5 -6 2118 No stop 19 34 40 =1206+416 18 38 51 22.7 306.0 6.5 51.3 114 2149 19 32 41 19 34 40 NGC4151 18 38 51 21.7 304.2 6.5 50.8 -6 2149 No stop 19 38 40 --- 18 42 52 21.1 304.8 6.5 50.4 234 2210 19 34 41 19 39 20 J1209+4119 18 43 32 22.0 306.6 6.6 50.8 34 2210 19 39 20 19 41 20 =1206+416 18 45 32 21.7 306.9 6.6 50.5 120 2241 19 39 21 19 41 20 NGC4151 18 45 32 20.7 305.1 6.6 50.1 -6 2241 No stop 19 45 20 --- 18 49 33 20.1 305.7 6.6 49.6 234 2303 19 41 21 19 45 20 J1209+4119 18 49 33 21.1 307.4 6.7 50.1 -6 2303 No stop 19 47 20 =1206+416 18 51 33 20.8 307.6 6.7 49.8 114 2333 19 45 21 19 47 20 NGC4151 18 51 33 19.8 305.9 6.7 49.4 -6 2333 No stop 19 51 20 --- 18 55 34 19.2 306.5 6.7 49.0 234 2395 19 47 21 19 52 00 J1209+4119 18 56 14 20.2 308.3 6.8 49.3 34 2395 19 52 00 19 54 00 =1206+416 18 58 14 19.9 308.5 6.8 49.0 120 2426 19 52 01 19 54 00 NGC4151 18 58 14 18.8 306.8 6.8 48.6 -6 2426 No stop 19 58 00 --- 19 02 15 18.2 307.4 6.8 48.2 234 2487 19 54 01 19 58 00 J1209+4119 19 02 15 19.3 309.0 6.9 48.5 -6 2487 No stop 20 00 00 =1206+416 19 04 15 19.0 309.3 6.9 48.3 114 2518 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: 13 Station: URUMQI Total bit rate: 2048 Format: MARK5B 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= 22000.00 22000.00 22000.00 22000.00 22000.00 22000.00 22000.00 22000.00 22000.00 22000.00 22000.00 22000.00 22000.00 22000.00 22000.00 22000.00 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 = A2 C1 A2 C1 A2 C1 A2 C1 A2 C1 A2 C1 A2 C1 A2 C1 The following frequency sets based on these setups were used. Frequency Set: 7 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= 139.49 139.49 139.49 139.49 203.49 203.49 203.49 203.49 267.49 267.49 267.49 267.49 331.49 331.49 331.49 331.49 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: 7 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 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