COVER INFORMATION Station: JODRELL1 (Code Jb ) Experiment: Dual Frequency Observation of NGC2146 Exp. Code: EC096B Schedule Version: 2.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: Xiaopeng Cheng Address: Radio Astronomy Division Korea Astronomy and Space Science Institute 776 Daedeokdae-ro, Yuseong-gu Daejeon 34055, KOREA Phone: +86-18317079386 EMAIL: xcheng@kasi.re.kr Fax: Phone during observation: +86-18317079386 Observing mode: Notes: evn6cm-2Gbps-32MHz.set Drafted by Xiaopeng Cheng Schedule for JODRELL1 (Code Jb ) Page 2 Dual Frequency Observation of NGC2146 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 ---------------------------------------------------------------------------------------- --- Sun 2 Jun 2024 Day 154 --- Next scan frequencies: 4830.49 4830.49 4830.49 4830.49 4894.49 4894.49 4894.49 4894.49 4958.49 4958.49 4958.49 4958.49 5022.49 5022.49 5022.49 5022.49 Next BBC frequencies: 833.51 833.51 833.51 833.51 769.51 769.51 769.51 769.51 705.51 705.51 705.51 705.51 641.51 641.51 641.51 641.51 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 09 00 00 0716+714 01 36 04 50.2 30.0 -5.8 -69.1 0 0 09 00 00 09 00 30 --- 01 36 34 50.3 30.0 -5.8 -69.2 30 8 09 00 01 09 00 50 0716+714 01 36 54 50.3 30.1 -5.8 -69.3 13 8 09 00 50 09 03 50 --- 01 39 55 50.5 30.2 -5.7 -69.9 180 54 09 00 51 09 04 10 J0617+7816 01 40 15 55.6 19.8 -4.7 -93.4 -37 54 09 04 10 09 05 50 --- 01 41 55 55.7 19.8 -4.7 -93.9 63 80 09 04 11 09 05 50 NGC2146 01 41 55 55.7 19.7 -4.7 -93.8 -11 80 No stop 09 09 30 --- 01 45 36 55.8 19.6 -4.6 -94.7 209 137 09 05 51 09 10 55 NGC2146 01 47 01 55.9 19.6 -4.6 -95.1 78 137 09 10 55 09 14 35 --- 01 50 42 56.1 19.6 -4.5 -96.0 220 193 09 10 56 09 14 35 J0617+7816 01 50 42 56.1 19.8 -4.5 -96.1 -11 193 No stop 09 15 45 --- 01 51 52 56.2 19.7 -4.5 -96.4 59 211 09 14 36 09 15 45 NGC2146 01 51 52 56.2 19.6 -4.5 -96.3 -11 211 No stop 09 19 25 --- 01 55 32 56.3 19.6 -4.4 -97.3 209 268 09 15 46 09 20 50 NGC2146 01 56 58 56.4 19.5 -4.4 -97.6 78 268 09 20 50 09 24 30 --- 02 00 38 56.6 19.5 -4.4 -98.6 220 325 09 20 51 09 24 30 J0617+7816 02 00 38 56.6 19.6 -4.4 -98.6 -11 325 No stop 09 25 40 --- 02 01 48 56.7 19.6 -4.3 -98.9 59 343 09 24 31 09 25 40 NGC2146 02 01 48 56.7 19.5 -4.3 -98.9 -11 343 No stop 09 29 20 --- 02 05 29 56.8 19.4 -4.3 -99.8 209 399 09 25 41 09 30 45 NGC2146 02 06 54 56.9 19.4 -4.3 -100.2 78 399 09 30 45 09 34 25 --- 02 10 35 57.1 19.3 -4.2 -101.1 220 456 09 30 46 09 34 25 J0617+7816 02 10 35 57.1 19.5 -4.2 -101.2 -11 456 No stop 09 35 35 --- 02 11 45 57.2 19.5 -4.2 -101.5 59 474 09 34 26 09 35 35 NGC2146 02 11 45 57.2 19.3 -4.2 -101.4 -11 474 No stop 09 39 15 --- 02 15 26 57.3 19.2 -4.1 -102.4 209 531 09 35 36 Schedule for JODRELL1 (Code Jb ) Page 3 Dual Frequency Observation of NGC2146 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 ---------------------------------------------------------------------------------------- --- Sun 2 Jun 2024 Day 154 --- 09 40 40 NGC2146 02 16 51 57.4 19.2 -4.1 -102.8 78 531 09 40 40 09 44 20 --- 02 20 32 57.6 19.1 -4.0 -103.7 220 587 09 40 41 09 44 20 J0617+7816 02 20 32 57.6 19.3 -4.0 -103.8 -11 587 No stop 09 45 30 --- 02 21 42 57.7 19.3 -4.0 -104.1 59 605 09 44 21 09 45 30 NGC2146 02 21 42 57.6 19.1 -4.0 -104.0 -11 605 No stop 09 49 10 --- 02 25 22 57.8 19.0 -4.0 -105.0 209 662 09 45 31 09 50 35 NGC2146 02 26 48 57.9 19.0 -3.9 -105.4 78 662 09 50 35 09 54 15 --- 02 30 28 58.1 18.9 -3.9 -106.4 220 719 09 50 36 09 55 25 NGC2146 02 31 38 58.1 18.9 -3.8 -106.7 63 719 09 55 25 09 58 45 --- 02 34 59 58.3 18.8 -3.8 -107.6 200 770 09 55 26 09 59 10 J0617+7816 02 35 24 58.4 18.9 -3.8 -107.7 14 770 09 59 10 10 00 20 --- 02 36 34 58.4 18.9 -3.8 -108.1 70 788 09 59 11 10 00 35 0716+714 02 36 49 54.9 32.0 -4.8 -81.9 -53 788 10 00 35 10 03 35 --- 02 39 50 55.2 32.1 -4.7 -82.6 127 835 10 00 36 10 03 50 J0617+7816 02 40 05 58.6 18.7 -3.7 -109.0 -54 835 10 03 50 10 05 50 --- 02 42 05 58.7 18.7 -3.7 -109.6 66 866 10 03 51 10 05 50 NGC2146 02 42 05 58.6 18.5 -3.7 -109.5 -11 866 No stop 10 09 30 --- 02 45 46 58.8 18.4 -3.6 -110.5 209 922 10 05 51 10 11 05 NGC2146 02 47 21 58.9 18.4 -3.6 -110.9 88 922 10 11 05 10 14 45 --- 02 51 02 59.0 18.2 -3.5 -112.0 220 979 10 11 06 10 14 45 J0617+7816 02 51 02 59.1 18.4 -3.5 -112.0 -10 979 No stop 10 16 05 --- 02 52 22 59.2 18.3 -3.5 -112.4 70 1000 10 14 46 10 16 05 NGC2146 02 52 22 59.1 18.2 -3.5 -112.3 -11 1000 No stop 10 19 45 --- 02 56 02 59.3 18.0 -3.4 -113.3 209 1056 10 16 06 10 21 20 NGC2146 02 57 38 59.4 18.0 -3.4 -113.8 88 1056 10 21 20 10 25 00 --- 03 01 18 59.5 17.8 -3.4 -114.8 220 1113 10 21 21 10 25 00 J0617+7816 03 01 18 59.6 18.0 -3.3 -114.9 -10 1113 No stop 10 26 20 --- 03 02 38 59.7 17.9 -3.3 -115.3 70 1134 10 25 01 10 26 20 NGC2146 03 02 38 59.6 17.8 -3.3 -115.2 -10 1134 No stop 10 30 00 --- 03 06 19 59.8 17.6 -3.3 -116.2 210 1190 10 26 21 Schedule for JODRELL1 (Code Jb ) Page 4 Dual Frequency Observation of NGC2146 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 ---------------------------------------------------------------------------------------- --- Sun 2 Jun 2024 Day 154 --- 10 31 35 NGC2146 03 07 54 59.8 17.5 -3.2 -116.7 88 1190 10 31 35 10 35 15 --- 03 11 35 60.0 17.4 -3.2 -117.7 220 1247 10 31 36 10 35 15 J0617+7816 03 11 35 60.1 17.5 -3.2 -117.8 -10 1247 No stop 10 36 35 --- 03 12 55 60.1 17.4 -3.1 -118.2 70 1268 10 35 16 10 36 35 NGC2146 03 12 55 60.1 17.3 -3.2 -118.1 -10 1268 No stop 10 40 15 --- 03 16 36 60.2 17.1 -3.1 -119.2 210 1324 10 36 36 10 41 50 NGC2146 03 18 11 60.3 17.1 -3.1 -119.6 88 1324 10 41 50 10 45 30 --- 03 21 52 60.4 16.9 -3.0 -120.7 220 1381 10 41 51 10 45 30 J0617+7816 03 21 52 60.5 17.0 -3.0 -120.8 -10 1381 No stop 10 46 50 --- 03 23 12 60.6 16.9 -3.0 -121.1 70 1402 10 45 31 10 46 50 NGC2146 03 23 12 60.5 16.8 -3.0 -121.1 -10 1402 No stop 10 50 30 --- 03 26 52 60.7 16.6 -2.9 -122.1 210 1458 10 46 51 10 52 05 NGC2146 03 28 28 60.7 16.5 -2.9 -122.6 88 1458 10 52 05 10 55 45 --- 03 32 08 60.9 16.3 -2.8 -123.7 220 1515 10 52 06 10 57 05 NGC2146 03 33 28 60.9 16.2 -2.8 -124.1 73 1515 10 57 05 11 00 45 --- 03 37 09 61.1 16.0 -2.8 -125.2 220 1572 10 57 06 11 02 20 NGC2146 03 38 44 61.2 15.9 -2.7 -125.7 88 1572 11 02 20 11 06 00 --- 03 42 25 61.3 15.7 -2.7 -126.8 220 1628 11 02 21 11 06 00 J0617+7816 03 42 25 61.4 15.8 -2.7 -126.8 -10 1628 No stop 11 07 20 --- 03 43 45 61.4 15.7 -2.6 -127.2 70 1649 11 06 01 11 07 20 NGC2146 03 43 45 61.4 15.6 -2.6 -127.2 -10 1649 No stop 11 11 00 --- 03 47 26 61.5 15.4 -2.6 -128.3 210 1706 11 07 21 11 12 35 NGC2146 03 49 01 61.6 15.3 -2.6 -128.7 88 1706 11 12 35 11 16 15 --- 03 52 42 61.7 15.0 -2.5 -129.9 220 1762 11 12 36 11 16 15 J0617+7816 03 52 42 61.8 15.1 -2.5 -130.0 -10 1762 No stop 11 17 35 --- 03 54 02 61.8 15.0 -2.5 -130.4 70 1783 11 16 16 11 17 35 NGC2146 03 54 02 61.8 14.9 -2.5 -130.3 -10 1783 No stop 11 21 15 --- 03 57 42 61.9 14.7 -2.4 -131.4 210 1840 11 17 36 11 21 40 J0617+7816 03 58 08 62.0 14.7 -2.4 -131.6 15 1840 11 21 40 11 22 50 --- 03 59 18 62.1 14.6 -2.4 -132.0 70 1858 11 21 41 Schedule for JODRELL1 (Code Jb ) Page 5 Dual Frequency Observation of NGC2146 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 ---------------------------------------------------------------------------------------- --- Sun 2 Jun 2024 Day 154 --- 11 27 00 0716+714 04 03 28 61.8 31.5 -3.4 -102.9 167 1858 11 27 00 11 30 00 --- 04 06 29 62.1 31.4 -3.3 -103.7 180 1904 11 27 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess224.C2048 --- 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: 2 Station: JODRELL1 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= 5664.00 5664.00 5664.00 5664.00 5664.00 5664.00 5664.00 5664.00 5664.00 5664.00 5664.00 5664.00 5664.00 5664.00 5664.00 5664.00 Net SB= L L U U L L U U L L U U L L U U IF SB = L L L L L L L L L L L L L L L L 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= U U L L U U L L U U L L U U L L IF = A1 B1 A1 B1 A1 B1 A1 B1 A1 B1 A1 B1 A1 B1 A1 B1 The following frequency sets based on these setups were used. Frequency Set: 1 Setup file default. Used with PCAL = off LO sum= 4830.49 4830.49 4830.49 4830.49 4894.49 4894.49 4894.49 4894.49 4958.49 4958.49 4958.49 4958.49 5022.49 5022.49 5022.49 5022.49 BBC fr= 833.51 833.51 833.51 833.51 769.51 769.51 769.51 769.51 705.51 705.51 705.51 705.51 641.51 641.51 641.51 641.51 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: 1 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) * NGC2146 06 10 40.107791 * 06 18 37.585516 06 22 23.566124 0.00 78 22 28.31056 * 78 21 24.26303 78 20 56.06119 0.00 From catalog imbedded in main SCHED input file. * J0617+7816 06 10 01.907777 * 06 17 56.932792 06 21 41.773835 0.00 78 17 08.57455 * 78 16 07.39406 78 15 40.58978 0.00 From catalog imbedded in main SCHED input file. * 0716+714 07 16 13.029730 * 07 21 53.448465 07 24 35.434943 0.01 J0721+7120 71 26 15.17409 * 71 20 36.36343 71 18 01.94138 0.00 J0721+71 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc2016 GSFC 2016a X/S astro solution, 79366 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 NGC2146 sess224.C2048 1 2 3 4 5 6 7 8 1.649 55.424 J0617+7816 sess224.C2048 1 2 3 4 5 6 7 8 0.572 16.041 0716+714 sess224.C2048 1 2 3 4 5 6 7 8 0.158 4.880 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) NGC2146 57.2 J0617+7816 57.2 0716+714 54.2 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