COVER INFORMATION Station: IRBENE (Code Ir ) 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 IRBENE (Code Ir ) 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: 730.49 730.49 730.49 730.49 794.49 794.49 794.49 794.49 858.49 858.49 858.49 858.49 922.49 922.49 922.49 922.49 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 03 12 43 61.3-323.4 -4.2 -85.3 0 0 09 00 00 09 00 30 --- 03 13 14 61.4-323.4 -4.2 -85.4 30 8 09 00 01 09 00 50 0716+714 03 13 34 61.4-323.4 -4.2 -85.5 17 8 09 00 50 09 03 50 --- 03 16 34 61.7-323.4 -4.1 -86.1 180 54 09 00 51 09 04 10 J0617+7816 03 16 54 64.4 19.9 -3.1 W -116.4 -155 54 09 04 10 09 05 50 --- 03 18 34 64.5 19.8 -3.1 W -116.9 0 80 09 04 11 09 05 50 NGC2146 03 18 34 64.4 19.6 -3.1 -116.8 -3 80 No stop 09 09 30 --- 03 22 15 64.6 19.4 -3.0 -117.9 217 137 09 05 51 09 09 55 J0617+7816 03 22 40 64.7 19.6 -3.0 -118.1 22 137 09 09 55 09 10 55 --- 03 23 40 64.7 19.5 -3.0 -118.4 60 152 09 09 56 09 10 55 NGC2146 03 23 40 64.6 19.4 -3.0 -118.3 -3 152 No stop 09 14 35 --- 03 27 21 64.8 19.1 -2.9 -119.4 217 209 09 10 56 09 14 35 J0617+7816 03 27 21 64.9 19.3 -2.9 -119.4 -3 209 No stop 09 15 45 --- 03 28 31 64.9 19.2 -2.9 -119.8 67 227 09 14 36 09 15 45 NGC2146 03 28 31 64.8 19.1 -2.9 -119.7 -3 227 No stop 09 19 25 --- 03 32 12 65.0 18.9 -2.8 -120.8 217 283 09 15 46 09 19 50 J0617+7816 03 32 37 65.1 19.0 -2.8 -121.0 22 283 09 19 50 09 20 50 --- 03 33 37 65.1 18.9 -2.8 -121.3 60 299 09 19 51 09 20 50 NGC2146 03 33 37 65.1 18.8 -2.8 -121.3 -3 299 No stop 09 24 30 --- 03 37 17 65.2 18.5 -2.8 -122.4 217 356 09 20 51 09 24 30 J0617+7816 03 37 17 65.3 18.7 -2.7 -122.4 -3 356 No stop 09 25 40 --- 03 38 28 65.3 18.6 -2.7 -122.8 67 374 09 24 31 09 25 40 NGC2146 03 38 28 65.3 18.5 -2.7 -122.7 -3 374 No stop 09 29 20 --- 03 42 08 65.4 18.2 -2.7 -123.9 217 430 09 25 41 09 29 45 J0617+7816 03 42 33 65.5 18.3 -2.7 -124.0 22 430 09 29 45 09 30 45 --- 03 43 34 65.6 18.2 -2.6 -124.4 60 446 09 29 46 Schedule for IRBENE (Code Ir ) 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 43 34 65.5 18.1 -2.6 -124.3 -3 446 No stop 09 34 25 --- 03 47 14 65.6 17.9 -2.6 -125.4 217 502 09 30 46 09 34 25 J0617+7816 03 47 14 65.7 18.0 -2.6 -125.5 -3 502 No stop 09 35 35 --- 03 48 24 65.8 17.9 -2.6 -125.9 67 520 09 34 26 09 35 35 NGC2146 03 48 24 65.7 17.8 -2.6 -125.8 -3 520 No stop 09 39 15 --- 03 52 05 65.8 17.5 -2.5 -126.9 217 577 09 35 36 09 39 40 J0617+7816 03 52 30 65.9 17.6 -2.5 -127.1 22 577 09 39 40 09 40 40 --- 03 53 30 66.0 17.5 -2.5 -127.4 60 593 09 39 41 09 40 40 NGC2146 03 53 30 65.9 17.4 -2.5 -127.4 -3 593 No stop 09 44 20 --- 03 57 11 66.0 17.1 -2.4 -128.5 217 649 09 40 41 09 44 20 J0617+7816 03 57 11 66.1 17.2 -2.4 -128.6 -3 649 No stop 09 45 30 --- 03 58 21 66.2 17.1 -2.4 -129.0 67 667 09 44 21 09 45 30 NGC2146 03 58 21 66.1 17.0 -2.4 -128.9 -3 667 No stop 09 49 10 --- 04 02 02 66.2 16.7 -2.3 -130.1 217 724 09 45 31 09 49 35 J0617+7816 04 02 27 66.3 16.8 -2.3 -130.3 22 724 09 49 35 09 50 35 --- 04 03 27 66.4 16.7 -2.3 -130.6 60 739 09 49 36 09 50 35 NGC2146 04 03 27 66.3 16.6 -2.3 -130.5 -3 739 No stop 09 54 15 --- 04 07 07 66.4 16.3 -2.3 -131.7 217 796 09 50 36 09 54 15 J0617+7816 04 07 07 66.5 16.4 -2.2 -131.8 -3 796 No stop 09 55 25 --- 04 08 18 66.6 16.3 -2.2 -132.2 67 814 09 54 16 09 55 25 NGC2146 04 08 18 66.5 16.2 -2.2 -132.1 -3 814 No stop 09 58 45 --- 04 11 38 66.6 15.9 -2.2 -133.2 197 866 09 55 26 09 59 10 J0617+7816 04 12 03 66.7 16.0 -2.2 -133.4 22 866 09 59 10 10 00 20 --- 04 13 13 66.7 15.9 -2.1 -133.8 70 884 09 59 11 10 00 35 0716+714 04 13 28 66.2 36.0 -3.2 -100.1 2 884 10 00 35 10 03 35 --- 04 16 29 66.4 35.9 -3.1 -100.9 180 930 10 00 36 10 03 50 J0617+7816 04 16 44 66.9 15.6 -2.1 -134.9 2 930 10 03 50 10 05 50 --- 04 18 44 66.9 15.4 -2.0 -135.6 120 961 10 03 51 10 05 50 NGC2146 04 18 44 66.8 15.3 -2.1 -135.5 -3 961 No stop 10 09 30 --- 04 22 25 67.0 15.0 -2.0 -136.7 217 1018 10 05 51 Schedule for IRBENE (Code Ir ) 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 04 22 50 67.1 15.0 -2.0 -136.9 22 1018 10 09 55 10 11 05 --- 04 24 00 67.1 14.9 -2.0 -137.3 70 1036 10 09 56 10 11 05 NGC2146 04 24 00 67.0 14.8 -2.0 -137.2 -3 1036 No stop 10 14 45 --- 04 27 41 67.2 14.5 -1.9 -138.5 217 1092 10 11 06 10 14 45 J0617+7816 04 27 41 67.2 14.5 -1.9 -138.6 -3 1092 No stop 10 16 05 --- 04 29 01 67.3 14.4 -1.9 -139.0 77 1113 10 14 46 10 16 05 NGC2146 04 29 01 67.2 14.3 -1.9 -138.9 -3 1113 No stop 10 19 45 --- 04 32 42 67.3 14.0 -1.8 -140.1 217 1170 10 16 06 10 20 10 J0617+7816 04 33 07 67.4 14.0 -1.8 -140.4 22 1170 10 20 10 10 21 20 --- 04 34 17 67.5 13.9 -1.8 -140.8 70 1188 10 20 11 10 21 20 NGC2146 04 34 17 67.4 13.8 -1.8 -140.7 -3 1188 No stop 10 25 00 --- 04 37 57 67.5 13.4 -1.7 -141.9 217 1244 10 21 21 10 25 00 J0617+7816 04 37 57 67.6 13.5 -1.7 -142.0 -3 1244 No stop 10 26 20 --- 04 39 18 67.6 13.3 -1.7 -142.5 77 1265 10 25 01 10 26 20 NGC2146 04 39 18 67.5 13.3 -1.7 -142.4 -3 1265 No stop 10 30 00 --- 04 42 58 67.6 12.9 -1.7 -143.6 217 1322 10 26 21 10 30 25 J0617+7816 04 43 23 67.7 12.9 -1.6 -143.9 22 1322 10 30 25 10 31 35 --- 04 44 34 67.8 12.8 -1.6 -144.3 70 1340 10 30 26 10 31 35 NGC2146 04 44 34 67.7 12.7 -1.6 -144.2 -3 1340 No stop 10 35 15 --- 04 48 14 67.8 12.3 -1.6 -145.5 217 1396 10 31 36 10 35 15 J0617+7816 04 48 14 67.9 12.4 -1.6 -145.6 -3 1396 No stop 10 36 35 --- 04 49 34 67.9 12.2 -1.5 -146.0 77 1417 10 35 16 10 36 35 NGC2146 04 49 34 67.8 12.2 -1.5 -145.9 -3 1417 No stop 10 40 15 --- 04 53 15 67.9 11.8 -1.5 -147.2 217 1474 10 36 36 10 40 40 J0617+7816 04 53 40 68.0 11.8 -1.5 -147.5 22 1474 10 40 40 10 41 50 --- 04 54 50 68.1 11.6 -1.4 -147.9 70 1492 10 40 41 10 41 50 NGC2146 04 54 50 68.0 11.6 -1.5 -147.8 -3 1492 No stop 10 45 30 --- 04 58 31 68.1 11.2 -1.4 -149.1 217 1548 10 41 51 10 45 30 J0617+7816 04 58 31 68.2 11.2 -1.4 -149.2 -3 1548 No stop 10 46 50 --- 04 59 51 68.2 11.0 -1.4 -149.7 77 1569 10 45 31 Schedule for IRBENE (Code Ir ) 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 59 51 68.1 11.0 -1.4 -149.5 -3 1569 No stop 10 50 30 --- 05 03 32 68.2 10.6 -1.3 -150.8 217 1626 10 46 51 10 50 55 J0617+7816 05 03 57 68.3 10.6 -1.3 -151.1 22 1626 10 50 55 10 52 05 --- 05 05 07 68.3 10.4 -1.3 -151.5 70 1644 10 50 56 10 52 05 NGC2146 05 05 07 68.2 10.4 -1.3 -151.4 -3 1644 No stop 10 55 45 --- 05 08 47 68.3 9.9 -1.2 -152.7 217 1700 10 52 06 10 55 45 J0617+7816 05 08 47 68.4 10.0 -1.2 -152.9 -3 1700 No stop 10 57 05 --- 05 10 08 68.5 9.8 -1.2 -153.3 77 1721 10 55 46 10 57 05 NGC2146 05 10 08 68.4 9.8 -1.2 -153.2 -3 1721 No stop 11 00 45 --- 05 13 48 68.4 9.3 -1.1 -154.5 217 1778 10 57 06 11 01 10 J0617+7816 05 14 13 68.5 9.3 -1.1 -154.8 22 1778 11 01 10 11 02 20 --- 05 15 24 68.6 9.1 -1.1 -155.2 70 1796 11 01 11 11 02 20 NGC2146 05 15 24 68.5 9.1 -1.1 -155.1 -3 1796 No stop 11 06 00 --- 05 19 04 68.6 8.7 -1.1 -156.4 217 1852 11 02 21 11 06 00 J0617+7816 05 19 04 68.6 8.7 -1.0 -156.6 -3 1852 No stop 11 07 20 --- 05 20 24 68.7 8.5 -1.0 -157.1 77 1873 11 06 01 11 07 20 NGC2146 05 20 24 68.6 8.5 -1.0 -156.9 -3 1873 No stop 11 11 00 --- 05 24 05 68.6 8.0 -1.0 -158.2 217 1930 11 07 21 11 11 25 J0617+7816 05 24 30 68.8 8.0 -1.0 -158.6 22 1930 11 11 25 11 12 35 --- 05 25 40 68.8 7.8 -0.9 -159.0 70 1948 11 11 26 11 12 35 NGC2146 05 25 40 68.7 7.8 -0.9 -158.8 -3 1948 No stop 11 16 15 --- 05 29 21 68.7 7.3 -0.9 -160.2 217 2004 11 12 36 11 16 15 J0617+7816 05 29 21 68.8 7.3 -0.9 -160.3 -3 2004 No stop 11 17 35 --- 05 30 41 68.9 7.2 -0.9 -160.8 77 2025 11 16 16 11 17 35 NGC2146 05 30 41 68.8 7.2 -0.9 -160.6 -3 2025 No stop 11 21 15 --- 05 34 22 68.8 6.7 -0.8 -162.0 217 2082 11 17 36 11 21 40 J0617+7816 05 34 47 68.9 6.6 -0.8 -162.3 22 2082 11 21 40 11 22 50 --- 05 35 57 68.9 6.4 -0.8 -162.8 70 2100 11 21 41 11 22 50 NGC2146 05 35 57 68.8 6.5 -0.8 -162.6 -3 2100 No stop 11 26 45 --- 05 39 53 68.9 5.9 -0.7 -164.0 232 2160 11 22 51 Schedule for IRBENE (Code Ir ) 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 40 08 72.5 28.0 -1.7 -128.2 1 2160 11 27 00 11 30 00 --- 05 43 08 72.7 27.5 -1.7 -129.4 180 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: 8 Station: IRBENE 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= 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 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: 7 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= 730.49 730.49 730.49 730.49 794.49 794.49 794.49 794.49 858.49 858.49 858.49 858.49 922.49 922.49 922.49 922.49 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= 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