COVER INFORMATION Station: ONSALA85 (Code O8 ) 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 ONSALA85 (Code O8 ) 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: 742.49 742.49 742.49 742.49 806.49 806.49 806.49 806.49 870.49 870.49 870.49 870.49 934.49 934.49 934.49 934.49 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 09 00 00 0716+714 02 32 59 58.1 35.4 -4.9 0.0 0 0 09 00 00 09 00 30 --- 02 33 29 58.1 35.4 -4.9 0.0 30 8 09 00 01 09 00 50 0716+714 02 33 49 58.1 35.4 -4.8 0.0 14 8 09 00 50 09 03 50 --- 02 36 49 58.4 35.5 -4.8 0.0 180 54 09 00 51 09 04 10 J0617+7816 02 37 09 62.4 21.4 -3.7 0.0 -44 54 09 04 10 09 05 50 --- 02 38 50 62.4 21.3 -3.7 0.0 56 80 09 04 11 09 05 50 NGC2146 02 38 50 62.4 21.1 -3.7 0.0 -8 80 No stop 09 09 30 --- 02 42 30 62.6 21.0 -3.7 0.0 212 137 09 05 51 09 09 55 J0617+7816 02 42 55 62.6 21.2 -3.6 0.0 17 137 09 09 55 09 10 55 --- 02 43 55 62.7 21.1 -3.6 0.0 60 152 09 09 56 09 10 55 NGC2146 02 43 55 62.6 21.0 -3.6 0.0 -8 152 No stop 09 14 35 --- 02 47 36 62.8 20.9 -3.6 0.0 212 209 09 10 56 09 14 35 J0617+7816 02 47 36 62.9 21.0 -3.6 0.0 -8 209 No stop 09 15 45 --- 02 48 46 62.9 21.0 -3.5 0.0 62 227 09 14 36 09 15 45 NGC2146 02 48 46 62.9 20.8 -3.6 0.0 -8 227 No stop 09 19 25 --- 02 52 27 63.0 20.7 -3.5 0.0 212 283 09 15 46 09 19 50 J0617+7816 02 52 52 63.1 20.8 -3.5 0.0 17 283 09 19 50 09 20 50 --- 02 53 52 63.2 20.8 -3.5 0.0 60 299 09 19 51 09 20 50 NGC2146 02 53 52 63.1 20.6 -3.5 0.0 -8 299 No stop 09 24 30 --- 02 57 33 63.3 20.5 -3.4 0.0 212 356 09 20 51 09 24 30 J0617+7816 02 57 33 63.3 20.6 -3.4 0.0 -8 356 No stop 09 25 40 --- 02 58 43 63.4 20.6 -3.4 0.0 62 374 09 24 31 09 25 40 NGC2146 02 58 43 63.3 20.4 -3.4 0.0 -8 374 No stop 09 29 20 --- 03 02 23 63.5 20.3 -3.3 0.0 212 430 09 25 41 09 29 45 J0617+7816 03 02 48 63.6 20.4 -3.3 0.0 17 430 09 29 45 09 30 45 --- 03 03 49 63.6 20.4 -3.3 0.0 60 446 09 29 46 Schedule for ONSALA85 (Code O8 ) 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 30 45 NGC2146 03 03 49 63.6 20.2 -3.3 0.0 -8 446 No stop 09 34 25 --- 03 07 29 63.7 20.1 -3.2 0.0 212 502 09 30 46 09 34 25 J0617+7816 03 07 29 63.8 20.2 -3.2 0.0 -8 502 No stop 09 35 35 --- 03 08 39 63.9 20.2 -3.2 0.0 62 520 09 34 26 09 35 35 NGC2146 03 08 39 63.8 20.0 -3.2 0.0 -8 520 No stop 09 39 15 --- 03 12 20 64.0 19.8 -3.2 0.0 212 577 09 35 36 09 39 40 J0617+7816 03 12 45 64.1 20.0 -3.1 0.0 17 577 09 39 40 09 40 40 --- 03 13 45 64.1 19.9 -3.1 0.0 60 593 09 39 41 09 40 40 NGC2146 03 13 45 64.0 19.8 -3.1 0.0 -8 593 No stop 09 44 20 --- 03 17 26 64.2 19.6 -3.1 0.0 212 649 09 40 41 09 44 20 J0617+7816 03 17 26 64.3 19.7 -3.1 0.0 -8 649 No stop 09 45 30 --- 03 18 36 64.3 19.7 -3.1 0.0 62 667 09 44 21 09 45 30 NGC2146 03 18 36 64.3 19.5 -3.1 0.0 -8 667 No stop 09 49 10 --- 03 22 17 64.4 19.3 -3.0 0.0 212 724 09 45 31 09 49 35 J0617+7816 03 22 42 64.5 19.4 -3.0 0.0 17 724 09 49 35 09 50 35 --- 03 23 42 64.6 19.4 -3.0 0.0 60 739 09 49 36 09 50 35 NGC2146 03 23 42 64.5 19.2 -3.0 0.0 -8 739 No stop 09 54 15 --- 03 27 22 64.6 19.0 -2.9 0.0 212 796 09 50 36 09 54 15 J0617+7816 03 27 22 64.7 19.2 -2.9 0.0 -8 796 No stop 09 55 25 --- 03 28 33 64.8 19.1 -2.9 0.0 62 814 09 54 16 09 55 25 NGC2146 03 28 33 64.7 19.0 -2.9 0.0 -8 814 No stop 09 58 45 --- 03 31 53 64.8 18.8 -2.8 0.0 192 866 09 55 26 09 59 10 J0617+7816 03 32 18 64.9 18.9 -2.8 0.0 17 866 09 59 10 10 00 20 --- 03 33 28 65.0 18.8 -2.8 0.0 70 884 09 59 11 10 00 35 0716+714 03 33 44 62.9 36.5 -3.8 0.0 -47 884 10 00 35 10 03 35 --- 03 36 44 63.1 36.5 -3.8 0.0 133 930 10 00 36 10 03 50 J0617+7816 03 36 59 65.1 18.6 -2.7 0.0 -49 930 10 03 50 10 05 50 --- 03 38 59 65.2 18.4 -2.7 0.0 71 961 10 03 51 10 05 50 NGC2146 03 38 59 65.1 18.3 -2.7 0.0 -8 961 No stop 10 09 30 --- 03 42 40 65.3 18.1 -2.7 0.0 212 1018 10 05 51 Schedule for ONSALA85 (Code O8 ) 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 09 55 J0617+7816 03 43 05 65.4 18.2 -2.6 0.0 17 1018 10 09 55 10 11 05 --- 03 44 15 65.4 18.1 -2.6 0.0 70 1036 10 09 56 10 11 05 NGC2146 03 44 15 65.4 18.0 -2.6 0.0 -8 1036 No stop 10 14 45 --- 03 47 56 65.5 17.7 -2.6 0.0 212 1092 10 11 06 10 14 45 J0617+7816 03 47 56 65.6 17.8 -2.6 0.0 -8 1092 No stop 10 16 05 --- 03 49 16 65.6 17.7 -2.5 0.0 72 1113 10 14 46 10 16 05 NGC2146 03 49 16 65.6 17.6 -2.6 0.0 -8 1113 No stop 10 19 45 --- 03 52 57 65.7 17.3 -2.5 0.0 212 1170 10 16 06 10 20 10 J0617+7816 03 53 22 65.8 17.4 -2.5 0.0 17 1170 10 20 10 10 21 20 --- 03 54 32 65.9 17.3 -2.5 0.0 70 1188 10 20 11 10 21 20 NGC2146 03 54 32 65.8 17.2 -2.5 0.0 -8 1188 No stop 10 25 00 --- 03 58 13 65.9 16.9 -2.4 0.0 212 1244 10 21 21 10 25 00 J0617+7816 03 58 13 66.0 17.0 -2.4 0.0 -8 1244 No stop 10 26 20 --- 03 59 33 66.1 16.9 -2.4 0.0 72 1265 10 25 01 10 26 20 NGC2146 03 59 33 66.0 16.8 -2.4 0.0 -8 1265 No stop 10 30 00 --- 04 03 13 66.1 16.5 -2.3 0.0 212 1322 10 26 21 10 30 25 J0617+7816 04 03 38 66.2 16.6 -2.3 0.0 17 1322 10 30 25 10 31 35 --- 04 04 49 66.3 16.5 -2.3 0.0 70 1340 10 30 26 10 31 35 NGC2146 04 04 49 66.2 16.4 -2.3 0.0 -8 1340 No stop 10 35 15 --- 04 08 29 66.3 16.1 -2.2 0.0 212 1396 10 31 36 10 35 15 J0617+7816 04 08 29 66.4 16.2 -2.2 0.0 -8 1396 No stop 10 36 35 --- 04 09 49 66.5 16.1 -2.2 0.0 72 1417 10 35 16 10 36 35 NGC2146 04 09 49 66.4 16.0 -2.2 0.0 -8 1417 No stop 10 40 15 --- 04 13 30 66.5 15.7 -2.1 0.0 212 1474 10 36 36 10 40 40 J0617+7816 04 13 55 66.6 15.7 -2.1 0.0 17 1474 10 40 40 10 41 50 --- 04 15 05 66.6 15.6 -2.1 0.0 70 1492 10 40 41 10 41 50 NGC2146 04 15 05 66.6 15.5 -2.1 0.0 -8 1492 No stop 10 45 30 --- 04 18 46 66.7 15.2 -2.1 0.0 212 1548 10 41 51 10 45 30 J0617+7816 04 18 46 66.8 15.3 -2.0 0.0 -8 1548 No stop 10 46 50 --- 04 20 06 66.8 15.2 -2.0 0.0 72 1569 10 45 31 Schedule for ONSALA85 (Code O8 ) 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 --- 10 46 50 NGC2146 04 20 06 66.7 15.1 -2.0 0.0 -8 1569 No stop 10 50 30 --- 04 23 47 66.9 14.7 -2.0 0.0 212 1626 10 46 51 10 50 55 J0617+7816 04 24 12 67.0 14.8 -2.0 0.0 17 1626 10 50 55 10 52 05 --- 04 25 22 67.0 14.7 -1.9 0.0 70 1644 10 50 56 10 52 05 NGC2146 04 25 22 66.9 14.6 -2.0 0.0 -8 1644 No stop 10 55 45 --- 04 29 03 67.0 14.2 -1.9 0.0 212 1700 10 52 06 10 55 45 J0617+7816 04 29 03 67.1 14.3 -1.9 0.0 -8 1700 No stop 10 57 05 --- 04 30 23 67.2 14.2 -1.9 0.0 72 1721 10 55 46 10 57 05 NGC2146 04 30 23 67.1 14.1 -1.9 0.0 -8 1721 No stop 11 00 45 --- 04 34 03 67.2 13.7 -1.8 0.0 212 1778 10 57 06 11 01 10 J0617+7816 04 34 28 67.3 13.8 -1.8 0.0 17 1778 11 01 10 11 02 20 --- 04 35 39 67.3 13.6 -1.8 0.0 70 1796 11 01 11 11 02 20 NGC2146 04 35 39 67.3 13.6 -1.8 0.0 -8 1796 No stop 11 06 00 --- 04 39 19 67.4 13.2 -1.7 0.0 212 1852 11 02 21 11 06 00 J0617+7816 04 39 19 67.5 13.3 -1.7 0.0 -8 1852 No stop 11 07 20 --- 04 40 39 67.5 13.1 -1.7 0.0 72 1873 11 06 01 11 07 20 NGC2146 04 40 39 67.4 13.1 -1.7 0.0 -8 1873 No stop 11 11 00 --- 04 44 20 67.5 12.7 -1.6 0.0 212 1930 11 07 21 11 11 25 J0617+7816 04 44 45 67.6 12.7 -1.6 0.0 17 1930 11 11 25 11 12 35 --- 04 45 55 67.7 12.5 -1.6 0.0 70 1948 11 11 26 11 12 35 NGC2146 04 45 55 67.6 12.5 -1.6 0.0 -8 1948 No stop 11 16 15 --- 04 49 36 67.7 12.1 -1.5 0.0 212 2004 11 12 36 11 16 15 J0617+7816 04 49 36 67.8 12.1 -1.5 0.0 -8 2004 No stop 11 17 35 --- 04 50 56 67.8 12.0 -1.5 0.0 72 2025 11 16 16 11 17 35 NGC2146 04 50 56 67.7 11.9 -1.5 0.0 -8 2025 No stop 11 21 15 --- 04 54 37 67.8 11.5 -1.5 0.0 212 2082 11 17 36 11 21 40 J0617+7816 04 55 02 67.9 11.5 -1.4 0.0 17 2082 11 21 40 11 22 50 --- 04 56 12 68.0 11.4 -1.4 0.0 70 2100 11 21 41 11 22 50 NGC2146 04 56 12 67.9 11.3 -1.4 0.0 -8 2100 No stop 11 26 45 --- 05 00 08 68.0 10.9 -1.4 0.0 227 2160 11 22 51 Schedule for ONSALA85 (Code O8 ) Page 6 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 05 00 23 69.7 32.9 -2.4 0.0 -46 2160 11 27 00 11 30 00 --- 05 03 23 69.9 32.6 -2.4 0.0 134 2207 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: 3 Station: ONSALA85 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= 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 4088.00 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 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 The following frequency sets based on these setups were used. Frequency Set: 5 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= 742.49 742.49 742.49 742.49 806.49 806.49 806.49 806.49 870.49 870.49 870.49 870.49 934.49 934.49 934.49 934.49 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: 5 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