COVER INFORMATION Station: KNOCKIN (Code Kn ) Experiment: EVN+e-MERLIN -Growing black holes or supernova factories in extremely op Exp. Code: EB103D 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 KNOCKIN (Code Kn ) 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 ---------------------------------------------------------------------------------------- --- Sun 10 Mar 2024 Day 70 --- Next scan frequencies: 1626.49 1626.49 Next BBC frequencies: 645.51 645.51 Next scan bandwidths: 64.00 64.00 20 30 00 3C286 07 34 02 24.0 70.8 -6.0 -41.4 0 0 20 30 00 20 35 00 --- 07 39 03 24.7 71.7 -5.9 -41.7 300 19 20 30 01 20 35 00 J0927+3902 07 39 03 66.7 115.4 -1.8 -44.6 -157 19 No stop 20 45 30 =4C39.25 07 49 34 68.1 119.3 -1.7 -42.7 473 60 20 35 01 20 47 00 J1321+2216 07 51 04 21.7 81.6 -5.5 -40.2 -71 60 20 47 00 20 52 00 --- 07 56 05 22.5 82.6 -5.4 -40.3 229 79 20 47 01 20 52 00 IC860 07 56 05 25.2 82.0 -5.3 -41.2 -28 79 No stop 20 55 00 --- 07 59 06 25.6 82.6 -5.3 -41.2 152 91 20 52 01 20 55 00 J1321+2216 07 59 06 22.9 83.1 -5.4 -40.4 -28 91 No stop 20 57 00 --- 08 01 06 23.2 83.5 -5.4 -40.4 92 99 20 55 01 20 57 00 IC860 08 01 06 25.9 83.0 -5.3 -41.3 -28 99 No stop 21 00 00 --- 08 04 07 26.4 83.6 -5.2 -41.3 152 110 20 57 01 21 00 20 J1321+2216 08 04 27 23.7 84.2 -5.3 -40.5 -8 110 21 00 20 21 02 00 --- 08 06 07 24.0 84.5 -5.3 -40.5 92 117 21 00 21 21 02 00 IC860 08 06 07 26.7 84.0 -5.2 -41.4 -28 117 No stop 21 05 00 --- 08 09 07 27.1 84.5 -5.1 -41.4 152 128 21 02 01 21 05 00 J1321+2216 08 09 07 24.4 85.1 -5.2 -40.6 -28 128 No stop 21 07 00 --- 08 11 08 24.7 85.4 -5.2 -40.6 92 136 21 05 01 21 07 00 IC860 08 11 08 27.4 84.9 -5.1 -41.4 -28 136 No stop 21 10 00 --- 08 14 08 27.9 85.5 -5.0 -41.5 152 147 21 07 01 21 10 20 J1321+2216 08 14 28 25.2 86.1 -5.1 -40.6 -8 147 21 10 20 21 12 00 --- 08 16 09 25.5 86.4 -5.1 -40.7 92 154 21 10 21 21 12 00 IC860 08 16 09 28.2 85.9 -5.0 -41.5 -28 154 No stop 21 15 00 --- 08 19 09 28.6 86.5 -5.0 -41.5 152 166 21 12 01 21 15 00 J1321+2216 08 19 09 25.9 87.0 -5.1 -40.7 -28 166 No stop 21 17 00 --- 08 21 09 26.2 87.4 -5.0 -40.7 92 173 21 15 01 21 17 00 IC860 08 21 09 28.9 86.8 -4.9 -41.6 -28 173 No stop 21 20 00 --- 08 24 10 29.4 87.4 -4.9 -41.6 152 185 21 17 01 Schedule for KNOCKIN (Code Kn ) 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 ---------------------------------------------------------------------------------------- --- Sun 10 Mar 2024 Day 70 --- 21 20 20 J1321+2216 08 24 30 26.8 88.1 -5.0 -40.7 -8 185 21 20 20 21 22 00 --- 08 26 10 27.0 88.4 -4.9 -40.7 92 191 21 20 21 21 22 00 IC860 08 26 10 29.7 87.8 -4.8 -41.6 -28 191 No stop 21 25 00 --- 08 29 11 30.2 88.4 -4.8 -41.6 152 203 21 22 01 21 25 00 J1321+2216 08 29 11 27.5 89.0 -4.9 -40.8 -28 203 No stop 21 27 00 --- 08 31 11 27.8 89.4 -4.9 -40.8 92 211 21 25 01 21 27 00 IC860 08 31 11 30.5 88.8 -4.8 -41.6 -28 211 No stop 21 30 00 --- 08 34 12 30.9 89.4 -4.7 -41.6 152 222 21 27 01 21 30 20 J1321+2216 08 34 32 28.3 90.0 -4.8 -40.8 -8 222 21 30 20 21 32 00 --- 08 36 12 28.5 90.4 -4.8 -40.8 92 229 21 30 21 21 32 00 IC860 08 36 12 31.2 89.8 -4.7 -41.6 -28 229 No stop 21 35 00 --- 08 39 12 31.7 90.4 -4.6 -41.6 152 240 21 32 01 21 35 00 J1321+2216 08 39 12 29.0 91.0 -4.7 -40.8 -28 240 No stop 21 37 00 --- 08 41 13 29.3 91.4 -4.7 -40.7 92 248 21 35 01 21 37 00 IC860 08 41 13 32.0 90.8 -4.6 -41.6 -28 248 No stop 21 40 00 --- 08 44 13 32.4 91.4 -4.5 -41.6 152 260 21 37 01 21 40 20 J1321+2216 08 44 33 29.8 92.0 -4.6 -40.7 -8 260 21 40 20 21 42 00 --- 08 46 14 30.0 92.4 -4.6 -40.7 92 266 21 40 21 21 42 00 IC860 08 46 14 32.7 91.8 -4.5 -41.6 -28 266 No stop 21 45 00 --- 08 49 14 33.2 92.4 -4.5 -41.6 152 278 21 42 01 21 45 00 J1321+2216 08 49 14 30.5 93.0 -4.6 -40.7 -28 278 No stop 21 47 00 --- 08 51 14 30.8 93.4 -4.5 -40.7 92 285 21 45 01 21 47 00 IC860 08 51 14 33.5 92.8 -4.4 -41.6 -28 285 No stop 21 50 00 --- 08 54 15 33.9 93.5 -4.4 -41.6 152 297 21 47 01 21 50 20 J1321+2216 08 54 35 31.3 94.1 -4.5 -40.6 -8 297 21 50 20 21 52 00 --- 08 56 15 31.6 94.4 -4.4 -40.6 92 303 21 50 21 21 52 00 IC860 08 56 15 34.2 93.9 -4.3 -41.5 -28 303 No stop 21 55 00 --- 08 59 16 34.7 94.5 -4.3 -41.5 152 315 21 52 01 21 55 00 J1321+2216 08 59 16 32.0 95.1 -4.4 -40.6 -28 315 No stop 21 57 00 --- 09 01 16 32.3 95.5 -4.4 -40.5 92 323 21 55 01 Schedule for KNOCKIN (Code Kn ) 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 ---------------------------------------------------------------------------------------- --- Sun 10 Mar 2024 Day 70 --- 21 57 00 IC860 09 01 16 35.0 94.9 -4.2 -41.5 -28 323 No stop 22 00 00 --- 09 04 16 35.5 95.5 -4.2 -41.4 152 334 21 57 01 22 00 20 J1321+2216 09 04 37 32.8 96.2 -4.3 -40.5 -8 334 22 00 20 22 02 00 --- 09 06 17 33.1 96.5 -4.3 -40.4 92 341 22 00 21 22 02 00 IC860 09 06 17 35.8 96.0 -4.2 -41.4 -28 341 No stop 22 05 00 --- 09 09 17 36.2 96.6 -4.1 -41.3 152 352 22 02 01 22 05 00 J1321+2216 09 09 17 33.5 97.2 -4.2 -40.4 -28 352 No stop 22 07 00 --- 09 11 18 33.8 97.6 -4.2 -40.3 92 360 22 05 01 22 07 00 IC860 09 11 18 36.5 97.0 -4.1 -41.3 -28 360 No stop 22 10 00 --- 09 14 18 37.0 97.7 -4.0 -41.2 152 372 22 07 01 22 10 20 J1321+2216 09 14 38 34.3 98.3 -4.1 -40.2 -8 372 22 10 20 22 12 00 --- 09 16 18 34.6 98.7 -4.1 -40.2 92 378 22 10 21 22 12 00 IC860 09 16 18 37.3 98.1 -4.0 -41.1 -28 378 No stop 22 15 00 --- 09 19 19 37.7 98.7 -3.9 -41.1 152 390 22 12 01 22 15 00 J1321+2216 09 19 19 35.0 99.3 -4.1 -40.1 -28 390 No stop 22 17 00 --- 09 21 19 35.3 99.7 -4.0 -40.1 92 397 22 15 01 22 17 00 IC860 09 21 19 38.0 99.2 -3.9 -41.0 -28 397 No stop 22 20 00 --- 09 24 20 38.5 99.8 -3.9 -40.9 152 409 22 17 01 22 20 20 J1321+2216 09 24 40 35.8 100.5 -4.0 -39.9 -8 409 22 20 20 22 22 00 --- 09 26 20 36.1 100.8 -3.9 -39.9 92 415 22 20 21 22 22 00 IC860 09 26 20 38.8 100.3 -3.8 -40.8 -28 415 No stop 22 25 00 --- 09 29 21 39.2 100.9 -3.8 -40.7 152 427 22 22 01 22 25 00 J1321+2216 09 29 21 36.5 101.5 -3.9 -39.8 -28 427 No stop 22 27 00 --- 09 31 21 36.8 101.9 -3.9 -39.7 92 435 22 25 01 22 27 00 IC860 09 31 21 39.5 101.4 -3.7 -40.6 -28 435 No stop 22 30 00 --- 09 34 21 39.9 102.1 -3.7 -40.5 152 446 22 27 01 22 30 20 J1321+2216 09 34 41 37.3 102.7 -3.8 -39.6 -8 446 22 30 20 22 32 00 --- 09 36 22 37.5 103.1 -3.8 -39.5 92 453 22 30 21 22 32 00 IC860 09 36 22 40.2 102.5 -3.7 -40.4 -28 453 No stop 22 35 00 --- 09 39 22 40.7 103.2 -3.6 -40.3 152 464 22 32 01 Schedule for KNOCKIN (Code Kn ) 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 ---------------------------------------------------------------------------------------- --- Sun 10 Mar 2024 Day 70 --- 22 35 00 J1321+2216 09 39 22 38.0 103.7 -3.7 -39.4 -28 464 No stop 22 37 00 --- 09 41 23 38.3 104.2 -3.7 -39.3 92 472 22 35 01 22 37 00 IC860 09 41 23 41.0 103.7 -3.6 -40.2 -28 472 No stop 22 40 00 --- 09 44 23 41.4 104.4 -3.5 -40.1 152 484 22 37 01 22 40 20 J1321+2216 09 44 43 38.8 105.0 -3.6 -39.1 -8 484 22 40 20 22 42 00 --- 09 46 23 39.0 105.4 -3.6 -39.0 92 490 22 40 21 22 42 00 IC860 09 46 23 41.7 104.8 -3.5 -40.0 -28 490 No stop 22 45 00 --- 09 49 24 42.2 105.5 -3.4 -39.8 152 502 22 42 01 22 45 00 J1321+2216 09 49 24 39.4 106.1 -3.5 -38.9 -28 502 No stop 22 47 00 --- 09 51 24 39.7 106.5 -3.5 -38.7 92 509 22 45 01 22 47 00 IC860 09 51 24 42.4 106.0 -3.4 -39.7 -28 509 No stop 22 50 00 --- 09 54 25 42.9 106.7 -3.4 -39.5 152 521 22 47 01 22 50 20 J1321+2216 09 54 45 40.2 107.3 -3.5 -38.6 -8 521 22 50 20 22 52 00 --- 09 56 25 40.5 107.7 -3.4 -38.5 92 528 22 50 21 22 52 00 IC860 09 56 25 43.2 107.2 -3.3 -39.4 -28 528 No stop 22 55 00 --- 09 59 26 43.6 107.9 -3.3 -39.2 152 539 22 52 01 22 55 00 J1321+2216 09 59 26 40.9 108.4 -3.4 -38.3 -28 539 No stop 22 57 00 --- 10 01 26 41.2 108.9 -3.3 -38.1 92 547 22 55 01 22 57 00 IC860 10 01 26 43.9 108.4 -3.2 -39.1 -28 547 No stop 23 00 00 --- 10 04 26 44.3 109.2 -3.2 -38.9 152 558 22 57 01 23 00 20 J1321+2216 10 04 46 41.7 109.7 -3.3 -37.9 -8 558 23 00 20 23 02 00 --- 10 06 27 41.9 110.1 -3.3 -37.8 92 565 23 00 21 23 02 00 IC860 10 06 27 44.6 109.7 -3.2 -38.7 -28 565 No stop 23 05 00 --- 10 09 27 45.0 110.4 -3.1 -38.5 152 576 23 02 01 23 05 00 J1321+2216 10 09 27 42.3 110.9 -3.2 -37.6 -28 576 No stop 23 07 00 --- 10 11 27 42.6 111.4 -3.2 -37.4 92 584 23 05 01 23 07 00 IC860 10 11 27 45.3 110.9 -3.1 -38.4 -28 584 No stop 23 10 00 --- 10 14 28 45.7 111.7 -3.0 -38.1 152 596 23 07 01 23 10 20 J1321+2216 10 14 48 43.1 112.2 -3.1 -37.2 -8 596 23 10 20 23 12 00 --- 10 16 28 43.3 112.6 -3.1 -37.1 92 602 23 10 21 Schedule for KNOCKIN (Code Kn ) 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 ---------------------------------------------------------------------------------------- --- Sun 10 Mar 2024 Day 70 --- 23 12 30 J0927+3902 10 16 58 73.8 215.8 0.8 27.1 -312 602 23 12 30 23 22 30 =4C39.25 10 27 00 72.9 221.8 1.0 31.2 288 641 23 12 31 23 24 30 J1321+2216 10 29 00 45.0 115.9 -2.9 -36.0 -218 641 23 24 30 23 30 30 --- 10 35 01 45.8 117.5 -2.8 -35.4 142 664 23 24 31 23 30 30 IC860 10 35 01 48.6 117.2 -2.7 -36.2 -28 664 No stop 23 33 30 --- 10 38 02 49.0 118.0 -2.6 -35.9 152 676 23 30 31 23 33 30 J1321+2216 10 38 02 46.2 118.3 -2.7 -35.1 -28 676 No stop 23 35 30 --- 10 40 02 46.5 118.9 -2.7 -34.9 92 683 23 33 31 23 35 30 IC860 10 40 02 49.2 118.6 -2.6 -35.7 -28 683 No stop 23 38 30 --- 10 43 03 49.6 119.4 -2.6 -35.4 152 695 23 35 31 23 38 50 J1321+2216 10 43 23 47.0 119.8 -2.6 -34.5 -8 695 23 38 50 23 40 30 --- 10 45 03 47.2 120.3 -2.6 -34.3 92 701 23 38 51 23 40 30 IC860 10 45 03 49.9 120.0 -2.5 -35.1 -28 701 No stop 23 43 30 --- 10 48 03 50.3 120.9 -2.5 -34.8 152 713 23 40 31 23 43 30 J1321+2216 10 48 03 47.6 121.1 -2.6 -34.0 -28 713 No stop 23 45 30 --- 10 50 04 47.8 121.7 -2.5 -33.7 92 721 23 43 31 23 45 30 IC860 10 50 04 50.6 121.5 -2.4 -34.5 -28 721 No stop 23 48 30 --- 10 53 04 50.9 122.4 -2.4 -34.1 152 732 23 45 31 23 48 50 J1321+2216 10 53 24 48.3 122.7 -2.5 -33.3 -8 732 23 48 50 23 50 30 --- 10 55 05 48.5 123.2 -2.5 -33.1 92 739 23 48 51 23 50 30 IC860 10 55 05 51.2 123.0 -2.4 -33.9 -28 739 No stop 23 53 30 --- 10 58 05 51.6 123.9 -2.3 -33.5 152 750 23 50 31 23 53 30 J1321+2216 10 58 05 48.8 124.0 -2.4 -32.8 -28 750 No stop 23 55 30 --- 11 00 05 49.1 124.6 -2.4 -32.5 92 758 23 53 31 23 55 30 IC860 11 00 05 51.8 124.5 -2.3 -33.2 -28 758 No stop 23 58 30 --- 11 03 06 52.2 125.4 -2.2 -32.8 152 770 23 55 31 --- Start: Sun 10 Mar 2024 Day 70 -- Stop: Mon 11 Mar 2024 Day 71 --- 23 58 50 J1321+2216 11 03 26 49.5 125.6 -2.3 -32.0 -8 770 23 58 50 00 00 30 --- 11 05 06 49.7 126.1 -2.3 -31.8 92 776 23 58 51 Schedule for KNOCKIN (Code Kn ) 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 ---------------------------------------------------------------------------------------- --- Mon 11 Mar 2024 Day 71 --- 00 00 30 IC860 11 05 06 52.4 126.1 -2.2 -32.5 -28 776 No stop 00 03 30 --- 11 08 07 52.8 127.0 -2.1 -32.1 152 788 00 00 31 00 03 30 J1321+2216 11 08 07 50.1 127.1 -2.2 -31.4 -28 788 No stop 00 05 30 --- 11 10 07 50.3 127.7 -2.2 -31.1 92 795 00 03 31 00 05 30 IC860 11 10 07 53.1 127.6 -2.1 -31.7 -28 795 No stop 00 08 30 --- 11 13 08 53.4 128.6 -2.1 -31.3 152 807 00 05 31 00 08 50 J1321+2216 11 13 28 50.7 128.7 -2.1 -30.6 -8 807 00 08 50 00 10 30 --- 11 15 08 50.9 129.3 -2.1 -30.4 92 813 00 08 51 00 10 30 IC860 11 15 08 53.6 129.3 -2.0 -31.0 -28 813 No stop 00 13 30 --- 11 18 08 54.0 130.3 -2.0 -30.5 152 825 00 10 31 00 13 30 J1321+2216 11 18 08 51.3 130.2 -2.1 -29.9 -28 825 No stop 00 15 30 --- 11 20 09 51.5 130.9 -2.0 -29.6 92 833 00 13 31 00 15 30 IC860 11 20 09 54.2 130.9 -1.9 -30.1 -28 833 No stop 00 18 30 --- 11 23 09 54.6 132.0 -1.9 -29.6 152 844 00 15 31 00 18 50 J1321+2216 11 23 29 51.9 132.0 -2.0 -29.0 -8 844 00 18 50 00 20 30 --- 11 25 10 52.1 132.5 -2.0 -28.8 92 851 00 18 51 00 20 30 IC860 11 25 10 54.8 132.7 -1.9 -29.3 -28 851 No stop 00 23 30 --- 11 28 10 55.1 133.7 -1.8 -28.7 152 862 00 20 31 00 23 30 J1321+2216 11 28 10 52.4 133.5 -1.9 -28.3 -28 862 No stop 00 25 30 --- 11 30 10 52.6 134.2 -1.9 -27.9 92 870 00 23 31 00 25 30 IC860 11 30 10 55.3 134.4 -1.8 -28.3 -28 870 No stop 00 28 30 --- 11 33 11 55.7 135.5 -1.7 -27.8 152 882 00 25 31 00 28 50 J1321+2216 11 33 31 53.0 135.3 -1.8 -27.3 -8 882 00 28 50 00 30 30 --- 11 35 11 53.1 135.9 -1.8 -27.0 92 888 00 28 51 00 30 30 IC860 11 35 11 55.9 136.2 -1.7 -27.4 -28 888 No stop 00 33 30 --- 11 38 12 56.2 137.3 -1.6 -26.8 152 900 00 30 31 00 33 30 J1321+2216 11 38 12 53.5 136.9 -1.7 -26.5 -28 900 No stop 00 35 30 --- 11 40 12 53.7 137.6 -1.7 -26.1 92 908 00 33 31 00 35 30 IC860 11 40 12 56.4 138.0 -1.6 -26.4 -28 908 No stop 00 38 30 --- 11 43 13 56.7 139.1 -1.6 -25.8 152 919 00 35 31 Schedule for KNOCKIN (Code Kn ) 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 ---------------------------------------------------------------------------------------- --- Mon 11 Mar 2024 Day 71 --- 00 38 50 J1321+2216 11 43 33 54.0 138.8 -1.6 -25.5 -8 919 00 38 50 00 40 30 --- 11 45 13 54.2 139.4 -1.6 -25.1 92 926 00 38 51 00 40 30 IC860 11 45 13 56.9 139.9 -1.5 -25.4 -28 926 No stop 00 43 30 --- 11 48 13 57.2 141.0 -1.5 -24.7 152 937 00 40 31 00 43 30 J1321+2216 11 48 13 54.5 140.5 -1.6 -24.5 -28 937 No stop 00 45 30 --- 11 50 14 54.7 141.2 -1.5 -24.1 92 945 00 43 31 00 45 30 IC860 11 50 14 57.4 141.8 -1.4 -24.3 -28 945 No stop 00 48 30 --- 11 53 14 57.6 143.0 -1.4 -23.6 152 956 00 45 31 00 48 50 J1321+2216 11 53 34 55.0 142.4 -1.5 -23.5 -8 956 00 48 50 00 50 30 --- 11 55 14 55.1 143.1 -1.5 -23.1 92 963 00 48 51 00 50 30 IC860 11 55 14 57.8 143.7 -1.3 -23.1 -28 963 No stop 00 53 30 --- 11 58 15 58.1 144.9 -1.3 -22.4 152 975 00 50 31 00 53 30 J1321+2216 11 58 15 55.4 144.2 -1.4 -22.5 -28 975 No stop 00 55 30 --- 12 00 15 55.6 144.9 -1.4 -22.0 92 982 00 53 31 00 55 30 IC860 12 00 15 58.3 145.7 -1.3 -22.0 -28 982 No stop 00 58 30 --- 12 03 16 58.5 146.9 -1.2 -21.3 152 994 00 55 31 00 58 50 J1321+2216 12 03 36 55.8 146.2 -1.3 -21.3 -8 994 00 58 50 01 00 30 --- 12 05 16 56.0 146.9 -1.3 -20.9 92 1000 00 58 51 01 00 30 IC860 12 05 16 58.7 147.8 -1.2 -20.8 -28 1000 No stop 01 03 30 --- 12 08 17 58.9 149.0 -1.1 -20.0 152 1012 01 00 31 01 03 30 J1321+2216 12 08 17 56.2 148.0 -1.2 -20.2 -28 1012 No stop 01 05 30 --- 12 10 17 56.4 148.8 -1.2 -19.8 92 1020 01 03 31 01 05 30 IC860 12 10 17 59.1 149.8 -1.1 -19.5 -28 1020 No stop 01 08 30 --- 12 13 17 59.3 151.1 -1.0 -18.7 152 1031 01 05 31 01 08 50 J1321+2216 12 13 38 56.6 150.1 -1.1 -19.0 -8 1031 01 08 50 01 10 30 --- 12 15 18 56.8 150.8 -1.1 -18.6 92 1038 01 08 51 01 10 30 IC860 12 15 18 59.4 151.9 -1.0 -18.2 -28 1038 No stop 01 13 30 --- 12 18 18 59.7 153.2 -1.0 -17.4 152 1049 01 10 31 01 13 30 J1321+2216 12 18 18 57.0 152.0 -1.1 -17.8 -28 1049 No stop 01 15 30 --- 12 20 19 57.1 152.8 -1.0 -17.3 92 1057 01 13 31 Schedule for KNOCKIN (Code Kn ) 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 ---------------------------------------------------------------------------------------- --- Mon 11 Mar 2024 Day 71 --- 01 15 30 IC860 12 20 19 59.8 154.1 -0.9 -16.9 -28 1057 No stop 01 18 30 --- 12 23 19 60.0 155.4 -0.9 -16.1 152 1069 01 15 31 01 18 50 J1321+2216 12 23 39 57.4 154.2 -1.0 -16.5 -8 1069 01 18 50 01 20 30 --- 12 25 19 57.5 154.9 -1.0 -16.1 92 1075 01 18 51 01 20 30 IC860 12 25 19 60.1 156.3 -0.8 -15.5 -28 1075 No stop 01 23 30 --- 12 28 20 60.3 157.6 -0.8 -14.7 152 1087 01 20 31 01 23 30 J1321+2216 12 28 20 57.7 156.1 -0.9 -15.3 -28 1087 No stop 01 25 30 --- 12 30 20 57.8 157.0 -0.9 -14.8 92 1094 01 23 31 01 25 30 IC860 12 30 20 60.4 158.5 -0.8 -14.1 -28 1094 No stop 01 28 30 --- 12 33 21 60.6 159.9 -0.7 -13.2 152 1106 01 25 31 01 28 50 J1321+2216 12 33 41 58.0 158.4 -0.8 -13.9 -7 1106 01 28 50 01 30 30 --- 12 35 21 58.1 159.1 -0.8 -13.5 93 1112 01 28 51 01 30 30 IC860 12 35 21 60.7 160.8 -0.7 -12.7 -28 1112 No stop 01 33 30 --- 12 38 22 60.8 162.1 -0.6 -11.8 152 1124 01 30 31 01 33 30 J1321+2216 12 38 22 58.2 160.4 -0.7 -12.7 -27 1124 No stop 01 35 30 --- 12 40 22 58.3 161.3 -0.7 -12.1 93 1132 01 33 31 01 35 30 IC860 12 40 22 60.9 163.0 -0.6 -11.2 -28 1132 No stop 01 38 30 --- 12 43 22 61.0 164.4 -0.5 -10.3 152 1143 01 35 31 01 38 50 J1321+2216 12 43 42 58.5 162.7 -0.6 -11.2 -7 1143 01 38 50 01 40 30 --- 12 45 23 58.5 163.4 -0.6 -10.7 93 1150 01 38 51 01 40 30 IC860 12 45 23 61.1 165.4 -0.5 -9.7 -27 1150 No stop 01 43 30 --- 12 48 23 61.2 166.8 -0.5 -8.8 153 1161 01 40 31 01 43 30 J1321+2216 12 48 23 58.7 164.7 -0.6 -9.9 -27 1161 No stop 01 45 30 --- 12 50 24 58.7 165.6 -0.5 -9.3 93 1169 01 43 31 01 45 30 IC860 12 50 24 61.3 167.7 -0.4 -8.1 -27 1169 No stop 01 48 30 --- 12 53 24 61.4 169.1 -0.4 -7.2 153 1181 01 45 31 01 48 50 J1321+2216 12 53 44 58.9 167.1 -0.5 -8.4 -7 1181 01 48 50 01 50 30 --- 12 55 24 58.9 167.8 -0.4 -7.9 93 1187 01 48 51 01 50 50 J1642+3948 12 55 44 49.7 85.3 -3.8 -51.6 -248 1187 01 50 50 02 00 30 =3C345 13 05 26 51.1 87.1 -3.6 -51.8 332 1224 01 50 51 Schedule for KNOCKIN (Code Kn ) 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 ---------------------------------------------------------------------------------------- --- Mon 11 Mar 2024 Day 71 --- 02 02 30 J1321+2216 13 07 26 59.2 173.2 -0.2 -4.4 -165 1224 02 02 30 02 07 30 --- 13 12 27 59.3 175.5 -0.2 -2.9 135 1244 02 02 31 02 07 30 IC860 13 12 27 61.7 178.2 -0.1 -1.2 -29 1244 No stop 02 10 30 --- 13 15 28 61.7 179.6 -0.0 -0.2 151 1255 02 07 31 02 10 30 J1321+2216 13 15 28 59.3 176.9 -0.1 -2.0 -27 1255 No stop 02 12 30 --- 13 17 28 59.3 177.8 -0.1 -1.5 93 1263 02 10 31 02 12 30 IC860 13 17 28 61.7 180.6 0.0 0.4 -30 1263 No stop 02 15 30 --- 13 20 28 61.7 182.0 0.1 1.4 150 1275 02 12 31 02 15 50 J1321+2216 13 20 49 59.3 179.3 -0.0 -0.5 -8 1275 02 15 50 02 17 30 --- 13 22 29 59.3 180.1 0.0 0.0 92 1281 02 15 51 02 17 30 IC860 13 22 29 61.7 183.0 0.1 2.0 -30 1281 No stop 02 20 30 --- 13 25 29 61.6 184.4 0.2 2.9 150 1293 02 17 31 02 20 30 J1321+2216 13 25 29 59.3 181.4 0.1 0.9 -28 1293 No stop 02 22 30 --- 13 27 30 59.3 182.3 0.1 1.5 92 1300 02 20 31 02 22 30 IC860 13 27 30 61.6 185.4 0.2 3.6 -31 1300 No stop 02 25 30 --- 13 30 30 61.6 186.8 0.2 4.5 149 1312 02 22 31 02 25 50 J1321+2216 13 30 50 59.3 183.8 0.1 2.5 -9 1312 02 25 50 02 27 30 --- 13 32 30 59.3 184.6 0.2 3.0 91 1318 02 25 51 02 27 30 IC860 13 32 30 61.5 187.8 0.3 5.2 -31 1318 No stop 02 30 30 --- 13 35 31 61.5 189.2 0.3 6.1 149 1330 02 27 31 02 30 30 J1321+2216 13 35 31 59.2 186.0 0.2 3.9 -30 1330 No stop 02 32 30 --- 13 37 31 59.2 186.9 0.3 4.5 90 1338 02 30 31 02 32 30 IC860 13 37 31 61.4 190.2 0.4 6.7 -32 1338 No stop 02 35 30 --- 13 40 32 61.3 191.6 0.4 7.7 148 1349 02 32 31 02 35 50 J1321+2216 13 40 52 59.1 188.4 0.3 5.5 -10 1349 02 35 50 02 37 30 --- 13 42 32 59.1 189.1 0.3 5.9 90 1356 02 35 51 02 37 30 IC860 13 42 32 61.3 192.5 0.4 8.3 -32 1356 No stop 02 40 30 --- 13 45 33 61.2 193.9 0.5 9.2 148 1367 02 37 31 02 40 30 J1321+2216 13 45 33 59.0 190.5 0.4 6.8 -30 1367 No stop 02 42 30 --- 13 47 33 59.0 191.4 0.4 7.4 90 1375 02 40 31 Schedule for KNOCKIN (Code Kn ) 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 ---------------------------------------------------------------------------------------- --- Mon 11 Mar 2024 Day 71 --- 02 42 30 IC860 13 47 33 61.1 194.9 0.5 9.8 -32 1375 No stop 02 45 30 --- 13 50 33 61.0 196.2 0.6 10.7 148 1387 02 42 31 02 45 50 J1321+2216 13 50 53 58.9 192.8 0.5 8.3 -11 1387 02 45 50 02 47 30 --- 13 52 34 58.8 193.6 0.5 8.8 89 1393 02 45 51 02 47 30 IC860 13 52 34 60.9 197.2 0.6 11.3 -33 1393 No stop 02 50 30 --- 13 55 34 60.7 198.5 0.7 12.2 147 1405 02 47 31 02 50 30 J1321+2216 13 55 34 58.7 194.9 0.6 9.7 -31 1405 No stop 02 52 30 --- 13 57 35 58.6 195.8 0.6 10.2 89 1413 02 50 31 02 52 30 IC860 13 57 35 60.6 199.4 0.7 12.8 -33 1413 No stop 02 55 30 --- 14 00 35 60.5 200.8 0.7 13.7 147 1424 02 52 31 02 55 50 J1321+2216 14 00 55 58.5 197.3 0.6 11.2 -12 1424 02 55 50 02 57 30 --- 14 02 35 58.4 198.0 0.7 11.6 88 1431 02 55 51 02 57 30 IC860 14 02 35 60.4 201.7 0.8 14.2 -33 1431 No stop 03 00 30 --- 14 05 36 60.2 203.0 0.8 15.1 147 1442 02 57 31 03 00 30 J1321+2216 14 05 36 58.3 199.3 0.7 12.4 -32 1442 No stop 03 02 30 --- 14 07 36 58.1 200.1 0.8 13.0 88 1450 03 00 31 03 02 30 IC860 14 07 36 60.1 203.9 0.9 15.6 -34 1450 No stop 03 05 30 --- 14 10 37 59.9 205.2 0.9 16.5 146 1461 03 02 31 03 05 50 J1321+2216 14 10 57 58.0 201.6 0.8 13.9 -12 1461 03 05 50 03 07 30 --- 14 12 37 57.9 202.3 0.8 14.3 88 1468 03 05 51 03 07 30 IC860 14 12 37 59.8 206.1 0.9 17.0 -34 1468 No stop 03 10 30 --- 14 15 37 59.6 207.4 1.0 17.8 146 1479 03 07 31 03 10 30 J1321+2216 14 15 37 57.7 203.5 0.9 15.1 -32 1479 No stop 03 12 30 --- 14 17 38 57.6 204.4 0.9 15.6 88 1487 03 10 31 03 12 30 IC860 14 17 38 59.4 208.3 1.0 18.3 -34 1487 No stop 03 15 30 --- 14 20 38 59.2 209.5 1.1 19.1 146 1499 03 12 31 03 15 50 J1321+2216 14 20 58 57.4 205.7 1.0 16.5 -12 1499 03 15 50 03 17 30 --- 14 22 39 57.2 206.4 1.0 16.9 88 1505 03 15 51 03 17 30 IC860 14 22 39 59.0 210.4 1.1 19.6 -34 1505 No stop 03 20 30 --- 14 25 39 58.8 211.6 1.2 20.4 146 1517 03 17 31 Schedule for KNOCKIN (Code Kn ) 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 ---------------------------------------------------------------------------------------- --- Mon 11 Mar 2024 Day 71 --- 03 20 30 J1321+2216 14 25 39 57.0 207.7 1.1 17.6 -33 1517 No stop 03 22 30 --- 14 27 39 56.9 208.5 1.1 18.1 87 1525 03 20 31 03 22 30 IC860 14 27 39 58.6 212.4 1.2 20.9 -34 1525 No stop 03 25 30 --- 14 30 40 58.4 213.6 1.2 21.6 146 1536 03 22 31 03 25 50 J1321+2216 14 31 00 56.7 209.8 1.1 18.9 -13 1536 03 25 50 03 27 30 --- 14 32 40 56.5 210.5 1.2 19.3 87 1543 03 25 51 03 27 30 IC860 14 32 40 58.2 214.5 1.3 22.1 -34 1543 No stop 03 30 30 --- 14 35 41 58.0 215.7 1.3 22.8 146 1554 03 27 31 03 30 30 J1321+2216 14 35 41 56.3 211.7 1.2 20.0 -33 1554 No stop 03 32 30 --- 14 37 41 56.1 212.4 1.3 20.5 87 1562 03 30 31 03 32 30 IC860 14 37 41 57.8 216.4 1.4 23.2 -34 1562 No stop 03 35 30 --- 14 40 42 57.5 217.6 1.4 23.9 146 1574 03 32 31 03 35 50 J1321+2216 14 41 02 55.9 213.7 1.3 21.3 -13 1574 03 35 50 03 37 30 --- 14 42 42 55.7 214.4 1.3 21.6 87 1580 03 35 51 03 37 30 IC860 14 42 42 57.3 218.4 1.4 24.4 -34 1580 No stop 03 40 30 --- 14 45 42 57.0 219.5 1.5 25.0 146 1592 03 37 31 03 40 30 J1321+2216 14 45 42 55.5 215.5 1.4 22.3 -33 1592 No stop 03 42 30 --- 14 47 43 55.3 216.3 1.4 22.7 87 1599 03 40 31 03 42 30 IC860 14 47 43 56.8 220.3 1.5 25.4 -34 1599 No stop 03 45 30 --- 14 50 43 56.5 221.4 1.6 26.1 146 1611 03 42 31 03 45 50 J1321+2216 14 51 03 55.0 217.5 1.5 23.4 -13 1611 03 45 50 03 47 30 --- 14 52 44 54.8 218.1 1.5 23.8 87 1617 03 45 51 03 47 30 IC860 14 52 44 56.3 222.2 1.6 26.5 -34 1617 No stop 03 50 30 --- 14 55 44 56.0 223.3 1.7 27.1 146 1629 03 47 31 03 50 30 J1321+2216 14 55 44 54.5 219.2 1.6 24.4 -33 1629 No stop 03 52 30 --- 14 57 44 54.3 220.0 1.6 24.8 87 1637 03 50 31 03 52 30 IC860 14 57 44 55.8 224.0 1.7 27.5 -34 1637 No stop 03 55 30 --- 15 00 45 55.5 225.0 1.7 28.1 146 1648 03 52 31 03 55 50 J1321+2216 15 01 05 54.0 221.2 1.6 25.4 -13 1648 03 55 50 03 57 30 --- 15 02 45 53.8 221.8 1.7 25.8 87 1655 03 55 51 Schedule for KNOCKIN (Code Kn ) 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 ---------------------------------------------------------------------------------------- --- Mon 11 Mar 2024 Day 71 --- 03 57 30 IC860 15 02 45 55.3 225.8 1.8 28.4 -34 1655 No stop 04 00 30 --- 15 05 46 55.0 226.8 1.8 29.0 146 1666 03 57 31 04 00 30 J1321+2216 15 05 46 53.5 222.8 1.7 26.3 -33 1666 No stop 04 02 30 --- 15 07 46 53.3 223.5 1.8 26.7 87 1674 04 00 31 04 02 30 IC860 15 07 46 54.7 227.5 1.9 29.3 -34 1674 No stop 04 05 30 --- 15 10 47 54.4 228.5 1.9 29.9 146 1686 04 02 31 04 05 50 J1321+2216 15 11 07 53.0 224.7 1.8 27.3 -13 1686 04 05 50 04 07 30 --- 15 12 47 52.8 225.2 1.8 27.6 87 1692 04 05 51 04 07 30 IC860 15 12 47 54.2 229.2 1.9 30.2 -34 1692 No stop 04 10 30 --- 15 15 47 53.8 230.2 2.0 30.7 146 1704 04 07 31 04 10 30 J1321+2216 15 15 47 52.5 226.2 1.9 28.1 -33 1704 No stop 04 12 30 --- 15 17 48 52.3 226.9 1.9 28.5 87 1711 04 10 31 04 12 30 IC860 15 17 48 53.6 230.9 2.0 31.0 -34 1711 No stop 04 15 30 --- 15 20 48 53.2 231.9 2.1 31.5 146 1723 04 12 31 04 15 50 J1321+2216 15 21 08 51.9 228.0 2.0 29.0 -13 1723 04 15 50 04 17 30 --- 15 22 48 51.7 228.6 2.0 29.3 87 1729 04 15 51 04 18 00 J1642+3948 15 23 19 71.1 125.4 -1.3 -39.9 -295 1729 04 18 00 04 30 00 =3C345 15 35 21 72.5 131.2 -1.1 -36.3 425 1776 04 18 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess124.L1024 --- 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: 14 Station: KNOCKIN Total bit rate: 512 Format: VDIF Bits per sample: 2 Sample rate:128.000 Number of channels: 2 DBE type: Speedup factor: 1.00 Disk used to record data. 1st LO= 2272.00 2272.00 Net SB= U U IF SB = L L Pol. = RCP LCP BBC = 1 9 BBC SB= L L IF = A1 B1 The following frequency sets based on these setups were used. Frequency Set: 12 Setup file default. Used with PCAL = off LO sum= 1626.49 1626.49 BBC fr= 645.51 645.51 Bandwd= 64.00 64.00 Matching frequency sets: 12 13 14 15 16 Track assignments are: track1= 1, 2 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 14.331378 0.00 24 52 58.07250 * 24 37 07.70000 24 29 16.36500 0.00 From catalog imbedded in main SCHED input file. Target * J1321+2216 13 18 46.850235 * 13 21 11.202556 13 22 22.129757 0.00 22 31 53.67224 * 22 16 12.10843 22 08 24.94908 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 35.045126 0.31 * J0927+3902 39 15 23.56644 * 39 02 20.85185 38 56 05.33481 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 16.584387 0.17 J1331+3030 30 45 58.64066 * 30 30 32.95930 30 22 52.03752 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 47.992001 0.79 * J1642+3948 39 54 10.81492 * 39 48 36.99399 39 45 31.39589 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.L1024 1 2 3 4 5 6 7 8 9 10 11 12 4.100 375.286 J1321+2216 sess124.L1024 1 2 3 4 5 6 7 8 9 10 11 12 2.772 228.078 J0927+3902 sess124.L1024 1 2 3 4 5 6 7 8 9 10 11 12 0.342 24.161 3C286 sess124.L1024 1 2 3 4 5 6 7 8 9 10 11 12 0.083 10.000 J1642+3948 sess124.L1024 1 2 3 4 5 6 7 8 9 10 11 12 0.361 24.470 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 146.3 J1321+2216 146.4 J0927+3902 135.6 3C286 140.0 J1642+3948 100.5 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