COVER INFORMATION Station: HART (Code Hh ) Experiment: EVN+e-MERLIN -Growing black holes or supernova factories in extremely op Exp. Code: EB103A Schedule Version: 2.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: Ann Njeri Address: Newcastel University/Jodrell Bank Centre for Astrophysics Herschel Building NE1 7RU, United Kingdom Phone: +447459552429 EMAIL: ann.njeri@newcastle.ac.uk Fax: Phone during observation: Observing mode: Notes: **** Phase-cal off please **** Single pointing with all telescopes Schedule for HART (Code Hh ) Page 2 EVN+e-MERLIN -Growing black holes or supernova factories in extremely op 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 ---------------------------------------------------------------------------------------- --- Mon 26 Feb 2024 Day 57 --- 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: 230.49 230.49 230.49 230.49 294.49 294.49 294.49 294.49 358.49 358.49 358.49 358.49 422.49 422.49 422.49 422.49 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 21 08 00 J0927+3902 09 23 37 25.2 1.1 -0.1 0.0 0 0 21 08 00 21 16 00 =4C39.25 09 31 38 25.2 359.3 0.1 0.0 480 124 21 08 01 21 17 00 J1321+2216 09 32 38 16.5 54.5 -3.8 0.0 -83 124 21 17 00 21 22 00 --- 09 37 39 17.4 53.8 -3.7 0.0 217 201 21 17 01 21 22 00 IC860 09 37 39 17.0 50.9 -3.6 0.0 -32 201 No stop 21 25 00 --- 09 40 39 17.5 50.5 -3.6 0.0 148 247 21 22 01 21 25 00 J1321+2216 09 40 39 18.0 53.3 -3.7 0.0 -32 247 No stop 21 27 00 --- 09 42 40 18.3 53.0 -3.7 0.0 88 278 21 25 01 21 27 00 IC860 09 42 40 17.9 50.1 -3.6 0.0 -32 278 No stop 21 30 00 --- 09 45 40 18.4 49.7 -3.5 0.0 148 325 21 27 01 21 30 20 J1321+2216 09 46 00 18.9 52.5 -3.6 0.0 -12 325 21 30 20 21 32 00 --- 09 47 40 19.2 52.2 -3.6 0.0 88 350 21 30 21 21 32 00 IC860 09 47 40 18.8 49.4 -3.5 0.0 -32 350 No stop 21 35 00 --- 09 50 41 19.3 48.9 -3.4 0.0 148 397 21 32 01 21 35 00 J1321+2216 09 50 41 19.7 51.7 -3.5 0.0 -32 397 No stop 21 37 00 --- 09 52 41 20.1 51.4 -3.5 0.0 88 428 21 35 01 21 37 00 IC860 09 52 41 19.6 48.6 -3.4 0.0 -32 428 No stop 21 40 00 --- 09 55 42 20.1 48.1 -3.3 0.0 148 474 21 37 01 21 40 20 J1321+2216 09 56 02 20.7 50.9 -3.4 0.0 -12 474 21 40 20 21 42 00 --- 09 57 42 21.0 50.6 -3.4 0.0 88 500 21 40 21 21 42 00 IC860 09 57 42 20.4 47.7 -3.3 0.0 -32 500 No stop 21 45 00 --- 10 00 43 20.9 47.2 -3.3 0.0 148 546 21 42 01 21 45 00 J1321+2216 10 00 43 21.5 50.1 -3.4 0.0 -32 546 No stop 21 47 00 --- 10 02 43 21.8 49.8 -3.3 0.0 88 577 21 45 01 21 47 00 IC860 10 02 43 21.3 46.9 -3.2 0.0 -32 577 No stop 21 50 00 --- 10 05 43 21.8 46.4 -3.2 0.0 148 623 21 47 01 Schedule for HART (Code Hh ) Page 3 EVN+e-MERLIN -Growing black holes or supernova factories in extremely op 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 ---------------------------------------------------------------------------------------- --- Mon 26 Feb 2024 Day 57 --- 21 50 20 J1321+2216 10 06 03 22.4 49.2 -3.3 0.0 -12 623 21 50 20 21 52 00 --- 10 07 44 22.7 48.9 -3.2 0.0 88 649 21 50 21 21 52 00 IC860 10 07 44 22.1 46.0 -3.1 0.0 -32 649 No stop 21 55 00 --- 10 10 44 22.6 45.5 -3.1 0.0 148 696 21 52 01 21 55 00 J1321+2216 10 10 44 23.2 48.4 -3.2 0.0 -32 696 No stop 21 57 00 --- 10 12 45 23.5 48.1 -3.2 0.0 88 727 21 55 01 21 57 00 IC860 10 12 45 22.9 45.2 -3.1 0.0 -32 727 No stop 22 00 00 --- 10 15 45 23.4 44.6 -3.0 0.0 148 773 21 57 01 22 00 20 J1321+2216 10 16 05 24.1 47.5 -3.1 0.0 -12 773 22 00 20 22 02 00 --- 10 17 45 24.4 47.2 -3.1 0.0 88 799 22 00 21 22 02 00 IC860 10 17 45 23.7 44.3 -3.0 0.0 -32 799 No stop 22 05 00 --- 10 20 46 24.2 43.7 -2.9 0.0 148 845 22 02 01 22 05 00 J1321+2216 10 20 46 24.9 46.6 -3.0 0.0 -32 845 No stop 22 07 00 --- 10 22 46 25.2 46.3 -3.0 0.0 88 876 22 05 01 22 07 00 IC860 10 22 46 24.5 43.4 -2.9 0.0 -32 876 No stop 22 10 00 --- 10 25 47 24.9 42.8 -2.8 0.0 148 922 22 07 01 22 10 20 J1321+2216 10 26 07 25.7 45.7 -2.9 0.0 -12 922 22 10 20 22 12 00 --- 10 27 47 26.0 45.3 -2.9 0.0 88 948 22 10 21 22 12 00 IC860 10 27 47 25.2 42.4 -2.8 0.0 -32 948 No stop 22 15 00 --- 10 30 48 25.7 41.9 -2.8 0.0 148 994 22 12 01 22 15 00 J1321+2216 10 30 48 26.5 44.8 -2.9 0.0 -32 994 No stop 22 17 00 --- 10 32 48 26.8 44.4 -2.8 0.0 88 1025 22 15 01 22 17 00 IC860 10 32 48 26.0 41.5 -2.7 0.0 -32 1025 No stop 22 20 00 --- 10 35 48 26.4 40.9 -2.7 0.0 148 1072 22 17 01 22 20 20 J1321+2216 10 36 08 27.3 43.8 -2.8 0.0 -12 1072 22 20 20 22 22 00 --- 10 37 49 27.6 43.4 -2.7 0.0 88 1098 22 20 21 22 22 00 IC860 10 37 49 26.7 40.5 -2.6 0.0 -32 1098 No stop 22 25 00 --- 10 40 49 27.2 39.9 -2.6 0.0 148 1144 22 22 01 22 25 00 J1321+2216 10 40 49 28.0 42.8 -2.7 0.0 -32 1144 No stop 22 27 00 --- 10 42 50 28.4 42.4 -2.7 0.0 88 1175 22 25 01 Schedule for HART (Code Hh ) Page 4 EVN+e-MERLIN -Growing black holes or supernova factories in extremely op 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 ---------------------------------------------------------------------------------------- --- Mon 26 Feb 2024 Day 57 --- 22 27 00 IC860 10 42 50 27.5 39.5 -2.6 0.0 -32 1175 No stop 22 30 00 --- 10 45 50 27.9 38.9 -2.5 0.0 148 1221 22 27 01 22 30 20 J1321+2216 10 46 10 28.9 41.8 -2.6 0.0 -12 1221 22 30 20 22 32 00 --- 10 47 50 29.1 41.4 -2.6 0.0 88 1247 22 30 21 22 32 00 IC860 10 47 50 28.2 38.5 -2.5 0.0 -32 1247 No stop 22 35 00 --- 10 50 51 28.6 37.9 -2.4 0.0 148 1293 22 32 01 22 35 00 J1321+2216 10 50 51 29.5 40.8 -2.5 0.0 -32 1293 No stop 22 37 00 --- 10 52 51 29.8 40.4 -2.5 0.0 88 1324 22 35 01 22 37 00 IC860 10 52 51 28.9 37.5 -2.4 0.0 -32 1324 No stop 22 40 00 --- 10 55 52 29.3 36.9 -2.3 0.0 148 1371 22 37 01 22 40 20 J1321+2216 10 56 12 30.3 39.7 -2.4 0.0 -12 1371 22 40 20 22 42 00 --- 10 57 52 30.6 39.4 -2.4 0.0 88 1396 22 40 21 22 42 00 IC860 10 57 52 29.5 36.4 -2.3 0.0 -32 1396 No stop 22 45 00 --- 11 00 52 29.9 35.8 -2.3 0.0 148 1443 22 42 01 22 45 00 J1321+2216 11 00 52 31.0 38.7 -2.4 0.0 -32 1443 No stop 22 47 00 --- 11 02 53 31.3 38.3 -2.3 0.0 88 1474 22 45 01 22 47 00 IC860 11 02 53 30.2 35.4 -2.2 0.0 -32 1474 No stop 22 50 00 --- 11 05 53 30.6 34.7 -2.2 0.0 148 1520 22 47 01 22 50 20 J1321+2216 11 06 13 31.7 37.6 -2.3 0.0 -12 1520 22 50 20 22 52 00 --- 11 07 54 32.0 37.2 -2.2 0.0 88 1546 22 50 21 22 52 00 IC860 11 07 54 30.8 34.3 -2.1 0.0 -32 1546 No stop 22 55 00 --- 11 10 54 31.2 33.6 -2.1 0.0 148 1592 22 52 01 22 55 00 J1321+2216 11 10 54 32.4 36.5 -2.2 0.0 -32 1592 No stop 22 57 00 --- 11 12 54 32.6 36.1 -2.2 0.0 88 1623 22 55 01 22 57 00 IC860 11 12 54 31.5 33.2 -2.1 0.0 -32 1623 No stop 23 00 00 --- 11 15 55 31.8 32.5 -2.0 0.0 148 1669 22 57 01 23 00 20 J1321+2216 11 16 15 33.1 35.3 -2.1 0.0 -12 1669 23 00 20 23 02 00 --- 11 17 55 33.3 34.9 -2.1 0.0 88 1695 23 00 21 23 14 00 J1321+2216 11 29 57 34.8 32.1 -1.9 0.0 698 1695 23 14 00 23 17 00 --- 11 32 58 35.1 31.4 -1.8 0.0 180 1742 23 14 01 Schedule for HART (Code Hh ) Page 5 EVN+e-MERLIN -Growing black holes or supernova factories in extremely op 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 ---------------------------------------------------------------------------------------- --- Mon 26 Feb 2024 Day 57 --- 23 17 00 IC860 11 32 58 33.8 28.5 -1.7 0.0 -32 1742 No stop 23 20 00 --- 11 35 58 34.1 27.7 -1.7 0.0 148 1788 23 17 01 23 20 00 J1321+2216 11 35 58 35.5 30.6 -1.8 0.0 -32 1788 No stop 23 22 00 --- 11 37 59 35.7 30.1 -1.7 0.0 88 1819 23 20 01 23 22 00 IC860 11 37 59 34.3 27.3 -1.6 0.0 -32 1819 No stop 23 25 00 --- 11 40 59 34.6 26.5 -1.6 0.0 148 1865 23 22 01 23 25 20 J1321+2216 11 41 19 36.1 29.3 -1.7 0.0 -12 1865 23 25 20 23 27 00 --- 11 42 59 36.3 28.9 -1.7 0.0 88 1891 23 25 21 23 27 00 IC860 11 42 59 34.8 26.0 -1.6 0.0 -32 1891 No stop 23 30 00 --- 11 46 00 35.1 25.3 -1.5 0.0 148 1937 23 27 01 23 30 00 J1321+2216 11 46 00 36.6 28.1 -1.6 0.0 -32 1937 No stop 23 32 00 --- 11 48 00 36.8 27.6 -1.6 0.0 88 1968 23 30 01 23 32 00 IC860 11 48 00 35.3 24.8 -1.5 0.0 -32 1968 No stop 23 35 00 --- 11 51 01 35.6 24.0 -1.4 0.0 148 2015 23 32 01 23 35 20 J1321+2216 11 51 21 37.1 26.7 -1.5 0.0 -12 2015 23 35 20 23 37 00 --- 11 53 01 37.3 26.3 -1.5 0.0 88 2040 23 35 21 23 37 00 IC860 11 53 01 35.8 23.5 -1.4 0.0 -32 2040 No stop 23 40 00 --- 11 56 01 36.0 22.7 -1.3 0.0 148 2087 23 37 01 23 40 00 J1321+2216 11 56 01 37.6 25.5 -1.4 0.0 -32 2087 No stop 23 42 00 --- 11 58 02 37.8 24.9 -1.4 0.0 88 2118 23 40 01 23 42 00 IC860 11 58 02 36.2 22.2 -1.3 0.0 -32 2118 No stop 23 45 00 --- 12 01 02 36.4 21.4 -1.3 0.0 148 2164 23 42 01 23 45 20 J1321+2216 12 01 22 38.1 24.0 -1.3 0.0 -12 2164 23 45 20 23 47 00 --- 12 03 03 38.3 23.6 -1.3 0.0 88 2190 23 45 21 23 47 00 IC860 12 03 03 36.6 20.8 -1.2 0.0 -32 2190 No stop 23 50 00 --- 12 06 03 36.8 20.0 -1.2 0.0 148 2236 23 47 01 23 50 00 J1321+2216 12 06 03 38.5 22.8 -1.3 0.0 -32 2236 No stop 23 52 00 --- 12 08 03 38.7 22.2 -1.2 0.0 88 2267 23 50 01 23 52 00 IC860 12 08 03 37.0 19.5 -1.1 0.0 -32 2267 No stop 23 55 00 --- 12 11 04 37.2 18.7 -1.1 0.0 148 2314 23 52 01 Schedule for HART (Code Hh ) Page 6 EVN+e-MERLIN -Growing black holes or supernova factories in extremely op 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 ---------------------------------------------------------------------------------------- --- Mon 26 Feb 2024 Day 57 --- 23 55 20 J1321+2216 12 11 24 39.0 21.3 -1.2 0.0 -12 2314 23 55 20 23 57 00 --- 12 13 04 39.1 20.8 -1.2 0.0 88 2339 23 55 21 23 57 00 IC860 12 13 04 37.4 18.2 -1.1 0.0 -32 2339 No stop 23 59 59 --- 12 16 05 37.6 17.3 -1.0 0.0 147 2386 23 57 01 --- Tue 27 Feb 2024 Day 58 --- 00 00 00 J1321+2216 12 16 05 39.4 20.0 -1.1 0.0 -32 2386 No stop 00 02 00 --- 12 18 05 39.5 19.4 -1.1 0.0 88 2417 00 00 00 00 02 00 IC860 12 18 05 37.7 16.8 -1.0 0.0 -32 2417 No stop 00 05 00 --- 12 21 06 37.9 15.9 -0.9 0.0 148 2463 00 02 01 00 05 20 J1321+2216 12 21 26 39.8 18.5 -1.0 0.0 -12 2463 00 05 20 00 07 00 --- 12 23 06 39.9 18.0 -1.0 0.0 88 2489 00 05 21 00 07 00 IC860 12 23 06 38.0 15.4 -0.9 0.0 -32 2489 No stop 00 10 00 --- 12 26 06 38.2 14.5 -0.8 0.0 148 2535 00 07 01 00 10 00 J1321+2216 12 26 06 40.1 17.1 -0.9 0.0 -32 2535 No stop 00 12 00 --- 12 28 07 40.2 16.5 -0.9 0.0 88 2566 00 10 01 00 12 00 IC860 12 28 07 38.3 14.0 -0.8 0.0 -32 2566 No stop 00 15 00 --- 12 31 07 38.5 13.1 -0.8 0.0 148 2612 00 12 01 00 15 20 J1321+2216 12 31 27 40.4 15.5 -0.8 0.0 -12 2612 00 15 20 00 17 00 --- 12 33 08 40.5 15.1 -0.8 0.0 88 2638 00 15 21 00 17 00 IC860 12 33 08 38.6 12.6 -0.7 0.0 -32 2638 No stop 00 20 00 --- 12 36 08 38.7 11.7 -0.7 0.0 148 2685 00 17 01 00 20 00 J1321+2216 12 36 08 40.7 14.2 -0.8 0.0 -32 2685 No stop 00 22 00 --- 12 38 08 40.8 13.6 -0.7 0.0 88 2716 00 20 01 00 22 00 IC860 12 38 08 38.8 11.1 -0.6 0.0 -32 2716 No stop 00 25 00 --- 12 41 09 38.9 10.3 -0.6 0.0 148 2762 00 22 01 00 25 20 J1321+2216 12 41 29 41.0 12.6 -0.7 0.0 -12 2762 00 25 20 00 27 00 --- 12 43 09 41.0 12.1 -0.7 0.0 88 2788 00 25 21 00 27 00 IC860 12 43 09 39.0 9.7 -0.6 0.0 -32 2788 No stop 00 30 00 --- 12 46 10 39.1 8.8 -0.5 0.0 148 2834 00 27 01 Schedule for HART (Code Hh ) Page 7 EVN+e-MERLIN -Growing black holes or supernova factories in extremely op 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 ---------------------------------------------------------------------------------------- --- Tue 27 Feb 2024 Day 58 --- 00 30 00 J1321+2216 12 46 10 41.2 11.2 -0.6 0.0 -32 2834 No stop 00 32 00 --- 12 48 10 41.3 10.6 -0.6 0.0 88 2865 00 30 01 00 32 00 IC860 12 48 10 39.2 8.2 -0.5 0.0 -32 2865 No stop 00 35 00 --- 12 51 11 39.3 7.4 -0.4 0.0 148 2911 00 32 01 00 35 20 J1321+2216 12 51 31 41.4 9.5 -0.5 0.0 -12 2911 00 35 20 00 37 00 --- 12 53 11 41.5 9.0 -0.5 0.0 88 2937 00 35 21 00 37 00 IC860 12 53 11 39.3 6.8 -0.4 0.0 -32 2937 No stop 00 40 00 --- 12 56 11 39.4 5.9 -0.3 0.0 148 2983 00 37 01 00 40 00 J1321+2216 12 56 11 41.6 8.1 -0.4 0.0 -32 2983 No stop 00 42 00 --- 12 58 12 41.6 7.5 -0.4 0.0 88 3014 00 40 01 00 42 00 IC860 12 58 12 39.4 5.3 -0.3 0.0 -32 3014 No stop 00 45 00 --- 13 01 12 39.5 4.4 -0.3 0.0 148 3061 00 42 01 00 45 20 J1321+2216 13 01 32 41.7 6.5 -0.3 0.0 -12 3061 00 45 20 00 47 00 --- 13 03 13 41.7 5.9 -0.3 0.0 88 3087 00 45 21 00 47 00 IC860 13 03 13 39.5 3.8 -0.2 0.0 -32 3087 No stop 00 50 00 --- 13 06 13 39.6 3.0 -0.2 0.0 148 3133 00 47 01 00 50 00 J1321+2216 13 06 13 41.8 5.0 -0.3 0.0 -32 3133 No stop 00 52 00 --- 13 08 13 41.8 4.4 -0.2 0.0 88 3164 00 50 01 00 52 00 IC860 13 08 13 39.6 2.4 -0.1 0.0 -32 3164 No stop 00 55 00 --- 13 11 14 39.6 1.5 -0.1 0.0 148 3210 00 52 01 00 55 20 J1321+2216 13 11 34 41.9 3.4 -0.2 0.0 -12 3210 00 55 20 00 57 00 --- 13 13 14 41.9 2.8 -0.2 0.0 88 3236 00 55 21 00 57 00 IC860 13 13 14 39.6 0.9 -0.0 0.0 -32 3236 No stop 01 00 00 --- 13 16 15 39.6 360.0 0.0 0.0 148 3282 00 57 01 01 00 00 J1321+2216 13 16 15 41.9 1.9 -0.1 0.0 -32 3282 No stop 01 02 00 --- 13 18 15 42.0 1.3 -0.1 0.0 88 3313 01 00 01 01 02 00 IC860 13 18 15 39.6 359.4 0.0 0.0 -32 3313 No stop 01 05 00 --- 13 21 15 39.6 358.5 0.1 0.0 148 3360 01 02 01 01 05 20 J1321+2216 13 21 36 42.0 0.2 -0.0 0.0 -12 3360 01 05 20 01 07 00 --- 13 23 16 42.0 359.7 0.0 0.0 88 3385 01 05 21 Schedule for HART (Code Hh ) Page 8 EVN+e-MERLIN -Growing black holes or supernova factories in extremely op 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 ---------------------------------------------------------------------------------------- --- Tue 27 Feb 2024 Day 58 --- 01 12 00 J1642+3948 13 28 17 10.1 36.0 -3.3 0.0 173 3385 01 12 00 01 17 00 =3C345 13 33 17 10.8 35.3 -3.2 0.0 300 3463 01 12 01 01 19 00 J1321+2216 13 35 18 41.9 356.0 0.2 0.0 -9 3463 01 19 00 01 23 00 --- 13 39 18 41.8 354.7 0.3 0.0 231 3524 01 19 01 01 23 00 IC860 13 39 18 39.3 353.2 0.4 0.0 -32 3524 No stop 01 26 00 --- 13 42 19 39.2 352.3 0.4 0.0 148 3571 01 23 01 01 26 00 J1321+2216 13 42 19 41.7 353.8 0.3 0.0 -32 3571 No stop 01 28 00 --- 13 44 19 41.7 353.2 0.4 0.0 88 3602 01 26 01 01 28 00 IC860 13 44 19 39.2 351.8 0.5 0.0 -32 3602 No stop 01 31 00 --- 13 47 20 39.1 350.9 0.5 0.0 148 3648 01 28 01 01 31 20 J1321+2216 13 47 40 41.6 352.2 0.4 0.0 -12 3648 01 31 20 01 33 00 --- 13 49 20 41.5 351.6 0.4 0.0 88 3674 01 31 21 01 33 00 IC860 13 49 20 39.0 350.3 0.6 0.0 -32 3674 No stop 01 36 00 --- 13 52 21 38.9 349.4 0.6 0.0 148 3720 01 33 01 01 36 00 J1321+2216 13 52 21 41.4 350.7 0.5 0.0 -32 3720 No stop 01 38 00 --- 13 54 21 41.3 350.1 0.5 0.0 88 3751 01 36 01 01 38 00 IC860 13 54 21 38.8 348.9 0.6 0.0 -32 3751 No stop 01 41 00 --- 13 57 21 38.7 348.0 0.7 0.0 148 3798 01 38 01 01 41 20 J1321+2216 13 57 41 41.2 349.1 0.6 0.0 -12 3798 01 41 20 01 43 00 --- 13 59 22 41.1 348.6 0.6 0.0 88 3823 01 41 21 01 43 00 IC860 13 59 22 38.6 347.4 0.7 0.0 -32 3823 No stop 01 46 00 --- 14 02 22 38.4 346.6 0.8 0.0 148 3870 01 43 01 01 46 00 J1321+2216 14 02 22 41.0 347.7 0.7 0.0 -32 3870 No stop 01 48 00 --- 14 04 23 40.9 347.1 0.7 0.0 88 3901 01 46 01 01 48 00 IC860 14 04 23 38.3 346.0 0.8 0.0 -32 3901 No stop 01 51 00 --- 14 07 23 38.1 345.2 0.9 0.0 148 3947 01 48 01 01 51 20 J1321+2216 14 07 43 40.7 346.1 0.8 0.0 -12 3947 01 51 20 01 53 00 --- 14 09 23 40.6 345.6 0.8 0.0 88 3973 01 51 21 01 53 00 IC860 14 09 23 38.0 344.6 0.9 0.0 -32 3973 No stop 01 56 00 --- 14 12 24 37.8 343.8 0.9 0.0 148 4019 01 53 01 Schedule for HART (Code Hh ) Page 9 EVN+e-MERLIN -Growing black holes or supernova factories in extremely op 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 ---------------------------------------------------------------------------------------- --- Tue 27 Feb 2024 Day 58 --- 01 56 00 J1321+2216 14 12 24 40.5 344.7 0.8 0.0 -32 4019 No stop 01 58 00 --- 14 14 24 40.3 344.1 0.9 0.0 88 4050 01 56 01 01 58 00 IC860 14 14 24 37.7 343.2 1.0 0.0 -32 4050 No stop 02 01 00 --- 14 17 25 37.5 342.4 1.0 0.0 148 4096 01 58 01 02 01 20 J1321+2216 14 17 45 40.1 343.1 0.9 0.0 -12 4096 02 01 20 02 03 00 --- 14 19 25 40.0 342.7 1.0 0.0 88 4122 02 01 21 02 03 00 IC860 14 19 25 37.4 341.8 1.1 0.0 -32 4122 No stop 02 06 00 --- 14 22 25 37.1 341.0 1.1 0.0 148 4169 02 03 01 02 06 00 J1321+2216 14 22 25 39.8 341.8 1.0 0.0 -32 4169 No stop 02 08 00 --- 14 24 26 39.7 341.2 1.0 0.0 88 4200 02 06 01 02 08 00 IC860 14 24 26 37.0 340.5 1.1 0.0 -32 4200 No stop 02 11 00 --- 14 27 26 36.8 339.7 1.2 0.0 148 4246 02 08 01 02 11 20 J1321+2216 14 27 46 39.4 340.3 1.1 0.0 -12 4246 02 11 20 02 13 00 --- 14 29 27 39.3 339.8 1.1 0.0 88 4272 02 11 21 02 13 00 IC860 14 29 27 36.6 339.1 1.2 0.0 -32 4272 No stop 02 16 00 --- 14 32 27 36.4 338.4 1.3 0.0 148 4318 02 13 01 02 16 00 J1321+2216 14 32 27 39.1 339.0 1.2 0.0 -32 4318 No stop 02 18 00 --- 14 34 27 38.9 338.4 1.2 0.0 88 4349 02 16 01 02 18 00 IC860 14 34 27 36.2 337.8 1.3 0.0 -32 4349 No stop 02 21 00 --- 14 37 28 35.9 337.0 1.4 0.0 148 4395 02 18 01 02 21 20 J1321+2216 14 37 48 38.6 337.5 1.3 0.0 -12 4395 02 21 20 02 23 00 --- 14 39 28 38.5 337.0 1.3 0.0 88 4421 02 21 21 02 23 00 IC860 14 39 28 35.8 336.5 1.4 0.0 -32 4421 No stop 02 26 00 --- 14 42 29 35.5 335.8 1.4 0.0 148 4467 02 23 01 02 26 00 J1321+2216 14 42 29 38.2 336.2 1.3 0.0 -32 4467 No stop 02 28 00 --- 14 44 29 38.0 335.7 1.4 0.0 88 4498 02 26 01 02 28 00 IC860 14 44 29 35.3 335.2 1.5 0.0 -32 4498 No stop 02 31 00 --- 14 47 30 35.0 334.5 1.5 0.0 148 4545 02 28 01 02 31 20 J1321+2216 14 47 50 37.7 334.8 1.4 0.0 -12 4545 02 31 20 02 33 00 --- 14 49 30 37.5 334.3 1.5 0.0 88 4571 02 31 21 Schedule for HART (Code Hh ) Page 10 EVN+e-MERLIN -Growing black holes or supernova factories in extremely op 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 ---------------------------------------------------------------------------------------- --- Tue 27 Feb 2024 Day 58 --- 02 33 00 IC860 14 49 30 34.8 334.0 1.6 0.0 -32 4571 No stop 02 36 00 --- 14 52 30 34.5 333.2 1.6 0.0 148 4617 02 33 01 02 36 00 J1321+2216 14 52 30 37.2 333.5 1.5 0.0 -32 4617 No stop 02 38 00 --- 14 54 31 37.0 333.0 1.5 0.0 88 4648 02 36 01 02 38 00 IC860 14 54 31 34.3 332.7 1.6 0.0 -32 4648 No stop 02 41 00 --- 14 57 31 34.0 332.0 1.7 0.0 148 4694 02 38 01 02 41 20 J1321+2216 14 57 51 36.7 332.1 1.6 0.0 -12 4694 02 41 20 02 43 00 --- 14 59 32 36.5 331.7 1.6 0.0 88 4720 02 41 21 02 43 00 IC860 14 59 32 33.8 331.5 1.7 0.0 -32 4720 No stop 02 46 00 --- 15 02 32 33.5 330.8 1.8 0.0 148 4766 02 43 01 02 46 00 J1321+2216 15 02 32 36.2 330.9 1.7 0.0 -32 4766 No stop 02 48 00 --- 15 04 32 36.0 330.4 1.7 0.0 88 4797 02 46 01 02 48 00 IC860 15 04 32 33.2 330.3 1.8 0.0 -32 4797 No stop 02 51 00 --- 15 07 33 32.9 329.6 1.9 0.0 148 4844 02 48 01 02 51 20 J1321+2216 15 07 53 35.6 329.6 1.8 0.0 -12 4844 02 51 20 02 53 00 --- 15 09 33 35.4 329.2 1.8 0.0 88 4869 02 51 21 02 53 00 IC860 15 09 33 32.7 329.1 1.9 0.0 -32 4869 No stop 02 56 00 --- 15 12 34 32.3 328.4 1.9 0.0 148 4916 02 53 01 02 56 00 J1321+2216 15 12 34 35.0 328.4 1.8 0.0 -32 4916 No stop 02 58 00 --- 15 14 34 34.8 328.0 1.9 0.0 88 4947 02 56 01 02 58 00 IC860 15 14 34 32.1 328.0 2.0 0.0 -32 4947 No stop 03 01 00 --- 15 17 35 31.7 327.3 2.0 0.0 148 4993 02 58 01 03 01 20 J1321+2216 15 17 55 34.4 327.2 1.9 0.0 -12 4993 03 01 20 03 03 00 --- 15 19 35 34.2 326.8 2.0 0.0 88 5019 03 01 21 03 05 00 J1642+3948 15 21 35 21.6 16.9 -1.4 0.0 -7 5019 03 05 00 03 11 00 =3C345 15 27 36 22.0 15.7 -1.3 0.0 353 5112 03 05 01 03 13 00 J1321+2216 15 29 36 32.9 324.4 2.1 0.0 -9 5112 03 13 00 03 19 00 --- 15 35 37 32.1 323.1 2.2 0.0 351 5204 03 13 01 03 19 00 IC860 15 35 37 29.4 323.4 2.3 0.0 -32 5204 No stop 03 22 00 --- 15 38 38 29.0 322.7 2.4 0.0 148 5251 03 19 01 Schedule for HART (Code Hh ) Page 11 EVN+e-MERLIN -Growing black holes or supernova factories in extremely op 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 ---------------------------------------------------------------------------------------- --- Tue 27 Feb 2024 Day 58 --- 03 22 00 J1321+2216 15 38 38 31.7 322.4 2.3 0.0 -32 5251 No stop 03 24 00 --- 15 40 38 31.4 322.0 2.3 0.0 88 5282 03 22 01 03 24 00 IC860 15 40 38 28.7 322.3 2.4 0.0 -32 5282 No stop 03 27 00 --- 15 43 39 28.3 321.7 2.5 0.0 148 5328 03 24 01 03 27 20 J1321+2216 15 43 59 31.0 321.3 2.4 0.0 -12 5328 03 27 20 03 29 00 --- 15 45 39 30.7 320.9 2.4 0.0 88 5354 03 27 21 03 29 00 IC860 15 45 39 28.0 321.3 2.5 0.0 -32 5354 No stop 03 32 00 --- 15 48 40 27.6 320.7 2.5 0.0 148 5400 03 29 01 03 32 00 J1321+2216 15 48 40 30.3 320.3 2.4 0.0 -32 5400 No stop 03 34 00 --- 15 50 40 30.0 319.8 2.5 0.0 88 5431 03 32 01 03 34 00 IC860 15 50 40 27.3 320.3 2.6 0.0 -32 5431 No stop 03 37 00 --- 15 53 40 26.9 319.7 2.6 0.0 148 5477 03 34 01 03 37 20 J1321+2216 15 54 00 29.5 319.1 2.5 0.0 -12 5477 03 37 20 03 39 00 --- 15 55 41 29.3 318.8 2.6 0.0 88 5503 03 37 21 03 39 00 IC860 15 55 41 26.6 319.3 2.7 0.0 -32 5503 No stop 03 42 00 --- 15 58 41 26.1 318.7 2.7 0.0 148 5550 03 39 01 03 42 00 J1321+2216 15 58 41 28.8 318.2 2.6 0.0 -32 5550 No stop 03 44 00 --- 16 00 42 28.5 317.8 2.6 0.0 88 5580 03 42 01 03 44 00 IC860 16 00 42 25.8 318.3 2.7 0.0 -32 5580 No stop 03 47 00 --- 16 03 42 25.4 317.8 2.8 0.0 148 5627 03 44 01 03 47 20 J1321+2216 16 04 02 28.0 317.1 2.7 0.0 -12 5627 03 47 20 03 49 00 --- 16 05 42 27.8 316.8 2.7 0.0 88 5653 03 47 21 03 49 00 IC860 16 05 42 25.1 317.4 2.8 0.0 -32 5653 No stop 03 52 00 --- 16 08 43 24.6 316.8 2.9 0.0 148 5699 03 49 01 03 52 00 J1321+2216 16 08 43 27.3 316.2 2.8 0.0 -32 5699 No stop 03 54 00 --- 16 10 43 27.0 315.8 2.8 0.0 88 5730 03 52 01 03 54 00 IC860 16 10 43 24.3 316.5 2.9 0.0 -32 5730 No stop 03 57 00 --- 16 13 44 23.8 315.9 3.0 0.0 148 5776 03 54 01 03 57 20 J1321+2216 16 14 04 26.5 315.2 2.9 0.0 -12 5776 03 57 20 03 59 00 --- 16 15 44 26.2 314.9 2.9 0.0 88 5802 03 57 21 Schedule for HART (Code Hh ) Page 12 EVN+e-MERLIN -Growing black holes or supernova factories in extremely op 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 ---------------------------------------------------------------------------------------- --- Tue 27 Feb 2024 Day 58 --- 03 59 00 IC860 16 15 44 23.5 315.5 3.0 0.0 -32 5802 No stop 04 02 00 --- 16 18 45 23.1 315.0 3.0 0.0 148 5848 03 59 01 04 02 00 J1321+2216 16 18 45 25.7 314.3 2.9 0.0 -32 5848 No stop 04 04 00 --- 16 20 45 25.4 314.0 3.0 0.0 88 5879 04 02 01 04 04 00 IC860 16 20 45 22.7 314.7 3.1 0.0 -32 5879 No stop 04 07 00 --- 16 23 45 22.2 314.1 3.1 0.0 148 5926 04 04 01 04 07 20 J1321+2216 16 24 05 24.8 313.3 3.0 0.0 -12 5926 04 07 20 04 09 00 --- 16 25 46 24.6 313.0 3.1 0.0 88 5951 04 07 21 04 09 00 IC860 16 25 46 21.9 313.8 3.2 0.0 -32 5951 No stop 04 12 00 --- 16 28 46 21.4 313.3 3.2 0.0 148 5998 04 09 01 04 12 00 J1321+2216 16 28 46 24.1 312.5 3.1 0.0 -32 5998 No stop 04 14 00 --- 16 30 47 23.7 312.2 3.1 0.0 88 6029 04 12 01 04 14 00 IC860 16 30 47 21.1 312.9 3.2 0.0 -32 6029 No stop 04 17 00 --- 16 33 47 20.6 312.4 3.3 0.0 148 6075 04 14 01 04 17 20 J1321+2216 16 34 07 23.2 311.6 3.2 0.0 -12 6075 04 17 20 04 19 00 --- 16 35 47 22.9 311.3 3.2 0.0 88 6101 04 17 21 04 19 00 IC860 16 35 47 20.3 312.1 3.3 0.0 -32 6101 No stop 04 22 00 --- 16 38 48 19.8 311.6 3.4 0.0 148 6147 04 19 01 04 22 00 J1321+2216 16 38 48 22.4 310.8 3.3 0.0 -32 6147 No stop 04 24 00 --- 16 40 48 22.0 310.4 3.3 0.0 88 6178 04 22 01 04 24 00 IC860 16 40 48 19.4 311.3 3.4 0.0 -32 6178 No stop 04 27 00 --- 16 43 49 18.9 310.8 3.5 0.0 148 6225 04 24 01 04 27 20 J1321+2216 16 44 09 21.5 309.9 3.4 0.0 -12 6225 04 27 20 04 29 00 --- 16 45 49 21.2 309.6 3.4 0.0 88 6250 04 27 21 04 29 00 IC860 16 45 49 18.6 310.5 3.5 0.0 -32 6250 No stop 04 32 00 --- 16 48 49 18.1 310.0 3.5 0.0 148 6297 04 29 01 04 32 00 J1321+2216 16 48 49 20.7 309.1 3.4 0.0 -32 6297 No stop 04 34 00 --- 16 50 50 20.3 308.8 3.5 0.0 88 6328 04 32 01 04 34 00 IC860 16 50 50 17.7 309.7 3.6 0.0 -32 6328 No stop 04 37 00 --- 16 53 50 17.2 309.2 3.6 0.0 148 6374 04 34 01 Schedule for HART (Code Hh ) Page 13 EVN+e-MERLIN -Growing black holes or supernova factories in extremely op 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 ---------------------------------------------------------------------------------------- --- Tue 27 Feb 2024 Day 58 --- 04 37 20 J1321+2216 16 54 10 19.7 308.2 3.5 0.0 -12 6374 04 37 20 04 39 00 --- 16 55 51 19.4 308.0 3.6 0.0 88 6400 04 37 21 04 39 00 IC860 16 55 51 16.8 308.9 3.7 0.0 -32 6400 No stop 04 42 00 --- 16 58 51 16.3 308.5 3.7 0.0 148 6446 04 39 01 04 42 00 J1321+2216 16 58 51 18.9 307.5 3.6 0.0 -32 6446 No stop 04 44 00 --- 17 00 51 18.5 307.2 3.6 0.0 88 6477 04 42 01 04 44 00 IC860 17 00 51 16.0 308.2 3.7 0.0 -32 6477 No stop 04 47 00 --- 17 03 52 15.4 307.7 3.8 0.0 148 6523 04 44 01 04 47 20 J1321+2216 17 04 12 17.9 306.7 3.7 0.0 -12 6523 04 47 20 04 49 00 --- 17 05 52 17.6 306.4 3.7 0.0 88 6549 04 47 21 04 54 00 J1642+3948 17 10 53 24.0 354.3 0.5 0.0 173 6549 04 54 00 05 00 00 =3C345 17 16 54 23.9 353.0 0.6 0.0 360 6642 04 54 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess124.C2048 Matching groups in /home/guest/rmc/SCHED/sched11.6/catalogs/freq_RDBE.dat: hh6cm Values confirmed by E-mail Jonathan Quick 20140219 (CR) ****** Only 256.00 of 512.00 MHz total bandwidth is within the IFs in the setup file before any FREQ or DOPPLER shifts. Setup group: 4 Station: HART 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= 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 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: 17 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= 230.49 230.49 230.49 230.49 294.49 294.49 294.49 294.49 358.49 358.49 358.49 358.49 422.49 422.49 422.49 422.49 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: 17 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) * IC860 13 12 39.496724 * 13 15 03.510000 13 16 14.046913 0.00 24 52 58.07250 * 24 37 07.70000 24 29 15.89742 0.00 From catalog imbedded in main SCHED input file. Target * J1321+2216 13 18 46.850235 * 13 21 11.202556 13 22 21.841623 0.00 22 31 53.67224 * 22 16 12.10843 22 08 24.65950 0.00 From catalog imbedded in main SCHED input file. Phaseref approx 2.74 degrees from IC860 4C39.25 09 23 55.319216 * 09 27 03.013937 09 28 35.074491 0.31 * J0927+3902 39 15 23.56644 * 39 02 20.85185 38 56 03.45206 0.16 0923+392 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc J0927+39 GSFC 2016a X/S astro solution, 250526 observations. * 3C286 13 28 49.657769 * 13 31 08.288061 13 32 16.271435 0.17 J1331+3030 30 45 58.64066 * 30 30 32.95930 30 22 51.28682 0.16 1328+307 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc J1331+30 GSFC 2016a X/S astro solution, 269 observations. 3C345 16 41 17.606229 * 16 42 58.809967 16 43 47.525042 0.79 * J1642+3948 39 54 10.81492 * 39 48 36.99399 39 45 31.94361 0.59 1641+399 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc J1642+39 GSFC 2016a X/S astro solution, 53724 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 IC860 sess124.C2048 1 2 3 4 5 6 7 8 9 10 12 17 4.000 423.945 J1321+2216 sess124.C2048 1 2 3 4 5 6 7 8 9 10 12 17 2.744 263.888 J0927+3902 sess124.C2048 1 2 3 4 5 6 7 8 9 10 12 17 0.133 13.220 3C286 sess124.C2048 1 2 3 4 5 6 7 8 9 10 12 0.117 14.000 J1642+3948 sess124.C2048 1 2 3 4 5 6 7 8 9 10 12 17 0.367 42.333 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) IC860 139.2 J1321+2216 138.4 J0927+3902 145.9 3C286 134.0 J1642+3948 94.5 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