COVER INFORMATION Station: WSTRBORK (Code Wb ) 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 WSTRBORK (Code Wb ) 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: 4958.49 4958.49 4958.49 4958.49 5022.49 5022.49 5022.49 5022.49 Next BBC frequencies: 371.49 371.49 371.49 371.49 435.49 435.49 435.49 435.49 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 09 00 00 0716+714 02 11 41 52.7 31.2 -5.2 0.0 0 0 09 00 00 09 00 30 --- 02 12 11 52.7 31.2 -5.2 0.0 30 4 09 00 01 09 00 50 0716+714 02 12 31 52.7 31.2 -5.2 0.0 9 4 09 00 50 09 03 50 --- 02 15 31 53.0 31.3 -5.2 0.0 180 27 09 00 51 09 04 10 J0617+7816 02 15 52 57.1 19.2 -4.1 0.0 -46 27 09 04 10 09 05 50 --- 02 17 32 57.2 19.2 -4.1 0.0 54 40 09 04 11 09 05 50 NGC2146 02 17 32 57.1 19.0 -4.1 0.0 -13 40 No stop 09 09 30 --- 02 21 12 57.3 19.0 -4.0 0.0 207 68 09 05 51 09 09 55 J0617+7816 02 21 37 57.4 19.1 -4.0 0.0 12 68 09 09 55 09 10 55 --- 02 22 38 57.4 19.1 -4.0 0.0 60 76 09 09 56 09 10 55 NGC2146 02 22 38 57.4 18.9 -4.0 0.0 -13 76 No stop 09 14 35 --- 02 26 18 57.6 18.8 -3.9 0.0 207 104 09 10 56 09 14 35 J0617+7816 02 26 18 57.6 19.0 -3.9 0.0 -13 104 No stop 09 15 45 --- 02 27 28 57.7 18.9 -3.9 0.0 57 113 09 14 36 09 15 45 NGC2146 02 27 28 57.6 18.8 -3.9 0.0 -13 113 No stop 09 19 25 --- 02 31 09 57.8 18.7 -3.9 0.0 207 142 09 15 46 09 19 50 J0617+7816 02 31 34 57.9 18.8 -3.8 0.0 12 142 09 19 50 09 20 50 --- 02 32 34 57.9 18.8 -3.8 0.0 60 149 09 19 51 09 20 50 NGC2146 02 32 34 57.9 18.7 -3.8 0.0 -13 149 No stop 09 24 30 --- 02 36 15 58.0 18.6 -3.8 0.0 207 178 09 20 51 09 24 30 J0617+7816 02 36 15 58.1 18.7 -3.8 0.0 -13 178 No stop 09 25 40 --- 02 37 25 58.2 18.7 -3.7 0.0 57 187 09 24 31 09 25 40 NGC2146 02 37 25 58.1 18.5 -3.7 0.0 -13 187 No stop 09 29 20 --- 02 41 06 58.3 18.4 -3.7 0.0 207 215 09 25 41 09 29 45 J0617+7816 02 41 31 58.4 18.5 -3.7 0.0 12 215 09 29 45 09 30 45 --- 02 42 31 58.4 18.5 -3.7 0.0 60 223 09 29 46 09 30 45 NGC2146 02 42 31 58.3 18.4 -3.7 0.0 -13 223 No stop 09 34 25 --- 02 46 12 58.5 18.2 -3.6 0.0 207 251 09 30 46 Schedule for WSTRBORK (Code Wb ) 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 34 25 J0617+7816 02 46 12 58.6 18.4 -3.6 0.0 -13 251 No stop 09 35 35 --- 02 47 22 58.6 18.3 -3.6 0.0 57 260 09 34 26 09 35 35 NGC2146 02 47 22 58.6 18.2 -3.6 0.0 -13 260 No stop 09 39 15 --- 02 51 02 58.7 18.1 -3.5 0.0 207 289 09 35 36 09 39 40 J0617+7816 02 51 27 58.8 18.2 -3.5 0.0 12 289 09 39 40 09 40 40 --- 02 52 28 58.9 18.1 -3.5 0.0 60 296 09 39 41 09 40 40 NGC2146 02 52 28 58.8 18.0 -3.5 0.0 -13 296 No stop 09 44 20 --- 02 56 08 59.0 17.9 -3.4 0.0 207 325 09 40 41 09 44 20 J0617+7816 02 56 08 59.0 18.0 -3.4 0.0 -13 325 No stop 09 45 30 --- 02 57 18 59.1 18.0 -3.4 0.0 57 334 09 44 21 09 45 30 NGC2146 02 57 18 59.0 17.8 -3.4 0.0 -13 334 No stop 09 49 10 --- 03 00 59 59.2 17.7 -3.4 0.0 207 362 09 45 31 09 49 35 J0617+7816 03 01 24 59.3 17.8 -3.3 0.0 12 362 09 49 35 09 50 35 --- 03 02 24 59.3 17.7 -3.3 0.0 60 370 09 49 36 09 50 35 NGC2146 03 02 24 59.3 17.6 -3.3 0.0 -13 370 No stop 09 54 15 --- 03 06 05 59.4 17.5 -3.3 0.0 207 398 09 50 36 09 54 15 J0617+7816 03 06 05 59.5 17.6 -3.3 0.0 -13 398 No stop 09 55 25 --- 03 07 15 59.6 17.5 -3.2 0.0 57 407 09 54 16 09 55 25 NGC2146 03 07 15 59.5 17.4 -3.3 0.0 -13 407 No stop 09 58 45 --- 03 10 36 59.6 17.3 -3.2 0.0 187 433 09 55 26 09 59 10 J0617+7816 03 11 01 59.7 17.4 -3.2 0.0 12 433 09 59 10 10 00 20 --- 03 12 11 59.8 17.3 -3.2 0.0 70 442 09 59 11 10 00 35 0716+714 03 12 26 57.5 32.1 -4.2 0.0 -50 442 10 00 35 10 03 35 --- 03 15 26 57.7 32.1 -4.2 0.0 130 465 10 00 36 10 03 50 J0617+7816 03 15 41 59.9 17.1 -3.1 0.0 -51 465 10 03 50 10 05 50 --- 03 17 42 60.0 17.0 -3.1 0.0 69 480 10 03 51 10 05 50 NGC2146 03 17 42 60.0 16.9 -3.1 0.0 -13 480 No stop 10 09 30 --- 03 21 22 60.1 16.7 -3.0 0.0 207 509 10 05 51 10 09 55 J0617+7816 03 21 47 60.2 16.8 -3.0 0.0 12 509 10 09 55 10 11 05 --- 03 22 58 60.3 16.8 -3.0 0.0 70 518 10 09 56 Schedule for WSTRBORK (Code Wb ) 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 11 05 NGC2146 03 22 58 60.2 16.6 -3.0 0.0 -13 518 No stop 10 14 45 --- 03 26 38 60.3 16.5 -2.9 0.0 207 546 10 11 06 10 14 45 J0617+7816 03 26 38 60.4 16.6 -2.9 0.0 -13 546 No stop 10 16 05 --- 03 27 58 60.5 16.5 -2.9 0.0 67 556 10 14 46 10 16 05 NGC2146 03 27 58 60.4 16.4 -2.9 0.0 -13 556 No stop 10 19 45 --- 03 31 39 60.6 16.2 -2.8 0.0 207 585 10 16 06 10 20 10 J0617+7816 03 32 04 60.7 16.3 -2.8 0.0 12 585 10 20 10 10 21 20 --- 03 33 14 60.7 16.2 -2.8 0.0 70 594 10 20 11 10 21 20 NGC2146 03 33 14 60.6 16.1 -2.8 0.0 -13 594 No stop 10 25 00 --- 03 36 55 60.8 15.9 -2.8 0.0 207 622 10 21 21 10 25 00 J0617+7816 03 36 55 60.9 16.0 -2.7 0.0 -13 622 No stop 10 26 20 --- 03 38 15 60.9 15.9 -2.7 0.0 67 633 10 25 01 10 26 20 NGC2146 03 38 15 60.8 15.8 -2.7 0.0 -13 633 No stop 10 30 00 --- 03 41 56 61.0 15.6 -2.7 0.0 207 661 10 26 21 10 30 25 J0617+7816 03 42 21 61.1 15.6 -2.7 0.0 12 661 10 30 25 10 31 35 --- 03 43 31 61.1 15.6 -2.6 0.0 70 670 10 30 26 10 31 35 NGC2146 03 43 31 61.0 15.5 -2.6 0.0 -13 670 No stop 10 35 15 --- 03 47 11 61.2 15.2 -2.6 0.0 207 698 10 31 36 10 35 15 J0617+7816 03 47 11 61.3 15.3 -2.6 0.0 -13 698 No stop 10 36 35 --- 03 48 32 61.3 15.2 -2.6 0.0 67 709 10 35 16 10 36 35 NGC2146 03 48 32 61.2 15.1 -2.6 0.0 -13 709 No stop 10 40 15 --- 03 52 12 61.4 14.9 -2.5 0.0 207 737 10 36 36 10 40 40 J0617+7816 03 52 37 61.5 15.0 -2.5 0.0 12 737 10 40 40 10 41 50 --- 03 53 48 61.5 14.9 -2.5 0.0 70 746 10 40 41 10 41 50 NGC2146 03 53 48 61.4 14.8 -2.5 0.0 -13 746 No stop 10 45 30 --- 03 57 28 61.6 14.5 -2.4 0.0 207 774 10 41 51 10 45 30 J0617+7816 03 57 28 61.7 14.6 -2.4 0.0 -13 774 No stop 10 46 50 --- 03 58 48 61.7 14.5 -2.4 0.0 67 785 10 45 31 10 46 50 NGC2146 03 58 48 61.6 14.4 -2.4 0.0 -13 785 No stop 10 50 30 --- 04 02 29 61.8 14.2 -2.3 0.0 207 813 10 46 51 Schedule for WSTRBORK (Code Wb ) 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 50 55 J0617+7816 04 02 54 61.9 14.2 -2.3 0.0 12 813 10 50 55 10 52 05 --- 04 04 04 61.9 14.1 -2.3 0.0 70 822 10 50 56 10 52 05 NGC2146 04 04 04 61.8 14.1 -2.3 0.0 -13 822 No stop 10 55 45 --- 04 07 45 62.0 13.8 -2.2 0.0 207 850 10 52 06 10 55 45 J0617+7816 04 07 45 62.1 13.9 -2.2 0.0 -13 850 No stop 10 57 05 --- 04 09 05 62.1 13.8 -2.2 0.0 67 861 10 55 46 10 57 05 NGC2146 04 09 05 62.0 13.7 -2.2 0.0 -13 861 No stop 11 00 45 --- 04 12 46 62.1 13.4 -2.2 0.0 207 889 10 57 06 11 01 10 J0617+7816 04 13 11 62.2 13.4 -2.1 0.0 12 889 11 01 10 11 02 20 --- 04 14 21 62.3 13.3 -2.1 0.0 70 898 11 01 11 11 02 20 NGC2146 04 14 21 62.2 13.3 -2.1 0.0 -13 898 No stop 11 06 00 --- 04 18 02 62.3 13.0 -2.1 0.0 207 926 11 02 21 11 06 00 J0617+7816 04 18 02 62.4 13.0 -2.1 0.0 -13 926 No stop 11 07 20 --- 04 19 22 62.5 12.9 -2.0 0.0 67 937 11 06 01 11 07 20 NGC2146 04 19 22 62.4 12.9 -2.1 0.0 -13 937 No stop 11 11 00 --- 04 23 02 62.5 12.6 -2.0 0.0 207 965 11 07 21 11 11 25 J0617+7816 04 23 27 62.6 12.6 -2.0 0.0 12 965 11 11 25 11 12 35 --- 04 24 38 62.6 12.5 -2.0 0.0 70 974 11 11 26 11 12 35 NGC2146 04 24 38 62.5 12.4 -2.0 0.0 -13 974 No stop 11 16 15 --- 04 28 18 62.7 12.1 -1.9 0.0 207 1002 11 12 36 11 16 15 J0617+7816 04 28 18 62.8 12.2 -1.9 0.0 -13 1002 No stop 11 17 35 --- 04 29 38 62.8 12.1 -1.9 0.0 67 1013 11 16 16 11 17 35 NGC2146 04 29 38 62.7 12.0 -1.9 0.0 -13 1013 No stop 11 21 15 --- 04 33 19 62.8 11.7 -1.8 0.0 207 1041 11 17 36 11 21 40 J0617+7816 04 33 44 62.9 11.7 -1.8 0.0 12 1041 11 21 40 11 22 50 --- 04 34 54 63.0 11.6 -1.8 0.0 70 1050 11 21 41 11 22 50 NGC2146 04 34 54 62.9 11.5 -1.8 0.0 -13 1050 No stop 11 26 45 --- 04 38 50 63.0 11.2 -1.7 0.0 222 1080 11 22 51 11 27 00 0716+714 04 39 05 64.3 29.2 -2.8 0.0 -49 1080 11 27 00 11 30 00 --- 04 42 05 64.5 29.0 -2.7 0.0 131 1103 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: 9 Station: WSTRBORK Total bit rate: 1024 Format: VDIF Bits per sample: 2 Sample rate: 64.000 Number of channels: 8 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 4587.00 4587.00 4587.00 4587.00 4587.00 4587.00 4587.00 4587.00 Net SB= L L U U L L U U IF SB = U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 9 1 9 2 10 2 10 BBC SB= L L U U L L U U IF = A1 B1 A1 B1 A1 B1 A1 B1 The following frequency sets based on these setups were used. Frequency Set: 2 Setup file default. Used with PCAL = off LO sum= 4958.49 4958.49 4958.49 4958.49 5022.49 5022.49 5022.49 5022.49 BBC fr= 371.49 371.49 371.49 371.49 435.49 435.49 435.49 435.49 Bandwd= 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 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