COVER INFORMATION Station: ONSALA20 (Code On ) Experiment: VLBI observations of M60 with the KVN, T6, EF and On at 16 Gbps Exp. Code: n23xc02a Schedule Version: 1.00 Processed by SCHED version: 11.70 Release 11.7; June 2022 PI: Jun YANG and Xiaopeng CHENG Address: Onsala Space Observatory SE-439 92 Onsala Sweden Phone: +46 31 7725531 EMAIL: jun.yang@chalmers.se Fax: +46 31 7725590 Phone during observation: +46 31 7725531 Observing mode: 16386-32-2 Notes: DBBC3 at T6, Ef and O6: 16386 Mbps, 32x128 MHz, RCP & LCP, 2 bit sampling OCTAD at KVN stations: 16386 Mbps, 16x256 MHz, RCP & LPC, 2 bit sampling K Band observations with RF=21000-23048 MHz Project code: #60-23 at EF. Feel free to check pointing and switch on P-Cal. Schedule for ONSALA20 (Code On ) Page 2 VLBI observations of M60 with the KVN, T6, EF and On at 16 Gbps 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 ---------------------------------------------------------------------------------------- --- Thu 9 Nov 2023 Day 313 --- Next scan frequencies: 21128.00 21128.00 21128.00 21128.00 21384.00 21384.00 21384.00 21384.00 21640.00 21640.00 21640.00 21640.00 21896.00 21896.00 21896.00 21896.00 22152.00 22152.00 22152.00 22152.00 22408.00 22408.00 22408.00 22408.00 22664.00 22664.00 22664.00 22664.00 22920.00 22920.00 22920.00 22920.00 Next BBC frequencies: 3198.00 3198.00 3198.00 3198.00 2942.00 2942.00 2942.00 2942.00 2686.00 2686.00 2686.00 2686.00 2430.00 2430.00 2430.00 2430.00 2174.00 2174.00 2174.00 2174.00 1918.00 1918.00 1918.00 1918.00 1662.00 1662.00 1662.00 1662.00 1406.00 1406.00 1406.00 1406.00 Next scan bandwidths: 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 03 00 00 J1254+11 06 59 51 10.3 444.6 -5.9 -33.2 0 0 03 00 00 03 01 20 --- 07 01 11 10.4 444.8 -5.9 -33.2 80 165 03 00 01 03 01 50 M60 07 01 41 11.9 447.3 -5.7 -33.3 19 165 03 01 50 03 13 50 --- 07 13 43 13.5 449.8 -5.5 -33.3 720 1649 03 01 51 03 14 20 J1254+11 07 14 13 12.2 447.6 -5.7 -33.3 19 1649 03 14 20 03 15 40 --- 07 15 34 12.4 447.8 -5.7 -33.3 80 1814 03 14 21 03 16 10 M60 07 16 04 13.8 450.3 -5.5 -33.3 19 1814 03 16 10 03 28 10 --- 07 28 06 15.4 452.9 -5.3 -33.3 720 3298 03 16 11 03 28 40 J1254+11 07 28 36 14.1 450.6 -5.5 -33.4 19 3298 03 28 40 03 30 00 --- 07 29 56 14.3 450.9 -5.4 -33.4 80 3463 03 28 41 03 31 00 1156+295 07 30 56 36.2 451.4 -4.5 -38.1 30 3463 03 31 00 03 33 30 --- 07 33 27 36.5 452.0 -4.5 -38.1 150 3772 03 31 01 03 34 30 M60 07 34 27 16.3 454.2 -5.2 -33.2 31 3772 03 34 30 03 46 30 --- 07 46 29 17.9 456.8 -5.0 -33.1 720 5256 03 34 31 03 47 00 J1254+11 07 46 59 16.6 454.5 -5.1 -33.3 19 5256 03 47 00 03 48 20 --- 07 48 19 16.8 454.8 -5.1 -33.2 80 5421 03 47 01 03 48 50 M60 07 48 49 18.2 457.3 -4.9 -33.0 19 5421 03 48 50 04 00 50 --- 08 00 51 19.8 459.9 -4.7 -32.8 720 6905 03 48 51 04 01 20 J1254+11 08 01 21 18.5 457.6 -4.9 -33.0 19 6905 04 01 20 04 02 40 --- 08 02 41 18.7 457.9 -4.9 -33.0 80 7070 04 01 21 04 03 10 M60 08 03 11 20.1 460.4 -4.7 -32.7 19 7070 04 03 10 04 15 10 --- 08 15 13 21.7 463.1 -4.5 -32.4 720 8554 04 03 11 Schedule for ONSALA20 (Code On ) Page 3 VLBI observations of M60 with the KVN, T6, EF and On at 16 Gbps 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 ---------------------------------------------------------------------------------------- --- Thu 9 Nov 2023 Day 313 --- 04 15 40 J1254+11 08 15 44 20.4 460.7 -4.7 -32.7 19 8554 04 15 40 04 17 00 --- 08 17 04 20.6 461.0 -4.6 -32.7 80 8718 04 15 41 04 18 00 RTVIR 08 18 04 14.2 463.1 -4.8 -31.8 46 8718 04 18 00 04 20 00 --- 08 20 04 14.5 463.5 -4.7 -31.7 120 8966 04 18 01 04 21 00 M60 08 21 04 22.5 464.4 -4.4 -32.2 44 8966 04 21 00 04 33 00 --- 08 33 06 24.0 467.1 -4.2 -31.7 720 10450 04 21 01 04 33 30 J1254+11 08 33 36 22.8 464.7 -4.4 -32.1 19 10450 04 33 30 04 34 50 --- 08 34 57 23.0 465.0 -4.3 -32.1 80 10615 04 33 31 04 35 20 M60 08 35 27 24.3 467.7 -4.2 -31.6 19 10615 04 35 20 04 47 20 --- 08 47 29 25.9 470.4 -4.0 -31.0 720 12099 04 35 21 04 47 50 J1254+11 08 47 59 24.6 467.9 -4.1 -31.5 19 12099 04 47 50 04 49 10 --- 08 49 19 24.8 468.3 -4.1 -31.5 80 12264 04 47 51 04 50 10 1156+295 08 50 19 46.7 469.9 -3.2 -35.4 30 12264 04 50 10 04 58 10 --- 08 58 21 47.7 472.0 -3.0 -34.9 480 13253 04 50 11 04 59 10 M60 08 59 21 27.3 473.2 -3.8 -30.3 31 13253 04 59 10 05 11 10 --- 09 11 23 28.8 476.1 -3.6 -29.6 720 14737 04 59 11 05 11 40 J1254+11 09 11 53 27.7 473.5 -3.7 -30.3 19 14737 05 11 40 05 13 00 --- 09 13 13 27.8 473.9 -3.7 -30.2 80 14902 05 11 41 05 14 00 M60 09 14 13 29.2 476.8 -3.5 -29.4 49 14902 05 14 00 05 26 00 --- 09 26 15 30.6 479.8 -3.3 -28.5 720 16386 05 14 01 05 26 30 J1254+11 09 26 45 29.5 477.1 -3.5 -29.3 19 16386 05 26 30 05 27 50 --- 09 28 05 29.6 477.5 -3.5 -29.2 80 16551 05 26 31 05 28 20 M60 09 28 35 30.9 480.4 -3.3 -28.3 19 16551 05 28 20 05 40 20 --- 09 40 37 32.2 483.5 -3.1 -27.3 720 18035 05 28 21 05 40 50 J1254+11 09 41 08 31.2 480.7 -3.2 -28.2 19 18035 05 40 50 05 42 10 --- 09 42 28 31.3 481.1 -3.2 -28.1 80 18200 05 40 51 05 42 40 M60 09 42 58 32.5 484.1 -3.0 -27.1 19 18200 05 42 40 05 54 40 --- 09 55 00 33.8 487.2 -2.8 -26.0 720 19684 05 42 41 05 55 10 J1254+11 09 55 30 32.8 484.4 -3.0 -27.0 19 19684 05 55 10 05 56 30 --- 09 56 50 32.9 484.7 -3.0 -26.9 80 19848 05 55 11 Schedule for ONSALA20 (Code On ) Page 4 VLBI observations of M60 with the KVN, T6, EF and On at 16 Gbps 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 ---------------------------------------------------------------------------------------- --- Thu 9 Nov 2023 Day 313 --- 05 58 00 RTVIR 09 58 20 26.4 486.4 -3.1 -25.8 76 19848 05 58 00 06 00 00 --- 10 00 21 26.6 486.9 -3.1 -25.6 120 20096 05 58 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: test_16gbps_1cm --- 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: ONSALA20 Total bit rate: 16384 Format: VDIF Bits per sample: 2 Sample rate:256.000 Number of channels: 32 DBE type: Speedup factor: 1.00 Disk used to record data. 1st LO= 24326.00 24326.00 24326.00 24326.00 24326.00 24326.00 24326.00 24326.00 24326.00 24326.00 24326.00 24326.00 24326.00 24326.00 24326.00 24326.00 24326.00 24326.00 24326.00 24326.00 24326.00 24326.00 24326.00 24326.00 24326.00 24326.00 24326.00 24326.00 24326.00 24326.00 24326.00 24326.00 Net SB= L L U U L L U U L L U U L L U U 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 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 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 5 13 5 13 6 14 6 14 7 15 7 15 8 16 8 16 BBC SB= U U L L U U L L U U L L U U L L U U L L U U L L U U L L U U L L IF = A2 B2 A2 B2 A2 B2 A2 B2 A2 B2 A2 B2 A2 B2 A2 B2 A2 B2 A2 B2 A2 B2 A2 B2 A2 B2 A2 B2 A2 B2 A2 B2 The following frequency sets based on these setups were used. Frequency Set: 4 Setup file default. Used with PCAL = 1MHz LO sum= 21128.00 21128.00 21128.00 21128.00 21384.00 21384.00 21384.00 21384.00 21640.00 21640.00 21640.00 21640.00 21896.00 21896.00 21896.00 21896.00 22152.00 22152.00 22152.00 22152.00 22408.00 22408.00 22408.00 22408.00 22664.00 22664.00 22664.00 22664.00 22920.00 22920.00 22920.00 22920.00 BBC fr= 3198.00 3198.00 3198.00 3198.00 2942.00 2942.00 2942.00 2942.00 2686.00 2686.00 2686.00 2686.00 2430.00 2430.00 2430.00 2430.00 2174.00 2174.00 2174.00 2174.00 1918.00 1918.00 1918.00 1918.00 1662.00 1662.00 1662.00 1662.00 1406.00 1406.00 1406.00 1406.00 Bandwd= 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 128.00 Matching frequency sets: 4 5 Track assignments are: track1= 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * M60 12 41 08.749622 * 12 43 39.971500 12 44 50.634400 0.00 11 49 34.61513 * 11 33 09.68800 11 25 25.12601 0.00 From catalog imbedded in main SCHED input file. * J1254+11 12 52 07.716960 * 12 54 38.255602 12 55 48.560155 0.00 11 57 20.86446 * 11 41 05.89490 11 33 25.95428 0.00 From catalog imbedded in main SCHED input file. * RTVIR 13 00 05.892171 * 13 02 38.013100 13 03 49.025974 0.00 05 27 14.52795 * 05 11 08.16750 05 03 33.62555 0.00 From catalog imbedded in main SCHED input file. J1159+2914 11 56 57.786213 * 11 59 31.833914 12 00 43.996235 0.03 * 1156+295 29 31 25.73872 * 29 14 43.82682 29 06 46.54061 0.03 J115931.8+29 /mnt/bele_1/yang/nrao_sched/sched_11.7/catalogs/sources.vlba ICRF3 X/S astro solution, 94219 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 M60 test_16gbps_1cm 1 4 6 7 2.200 31.865 J1254+11 test_16gbps_1cm 1 4 6 7 0.267 3.790 RTVIR test_16gbps_1cm 1 4 6 7 0.067 0.833 1156+295 test_16gbps_1cm 1 4 6 7 0.175 2.517 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) M60 43.0 J1254+11 41.1 RTVIR 35.3 1156+295 62.4 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