COVER INFORMATION Station: DARNHALL (Code Da ) Experiment: EVN+e-MERLIN -Growing black holes or supernova factories in extremely op Exp. Code: EB103C 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 DARNHALL (Code Da ) 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 ---------------------------------------------------------------------------------------- --- Thu 7 Mar 2024 Day 67 --- Next scan frequencies: 1626.49 1626.49 Next BBC frequencies: 645.51 645.51 Next scan bandwidths: 64.00 64.00 08 30 00 3C286 19 22 05 25.3 -72.5 5.8 41.5 0 0 08 30 00 08 37 00 --- 19 29 06 24.3 -71.2 5.9 41.1 420 27 08 30 01 08 42 00 J0237+2848 19 34 06 13.9 59.9 -7.1 -36.4 -117 27 08 42 00 08 52 00 =0234+285 19 44 08 15.2 61.8 -6.9 -37.1 483 66 08 42 01 08 53 20 J0137+3309 19 45 28 27.0 69.6 -5.9 -42.3 22 66 08 53 20 08 58 20 --- 19 50 29 27.7 70.5 -5.8 -42.5 300 85 08 53 21 08 58 20 ZW049 19 50 29 27.1 73.2 -5.7 -42.2 -28 85 No stop 09 01 20 --- 19 53 30 27.5 73.7 -5.6 -42.3 152 97 08 58 21 09 01 20 J0137+3309 19 53 30 28.1 71.0 -5.8 -42.7 -28 97 No stop 09 03 20 --- 19 55 30 28.4 71.4 -5.7 -42.8 92 104 09 01 21 09 03 20 ZW049 19 55 30 27.8 74.1 -5.6 -42.4 -29 104 No stop 09 06 20 --- 19 58 30 28.2 74.6 -5.6 -42.6 151 116 09 03 21 09 06 40 J0137+3309 19 58 51 28.8 72.0 -5.7 -43.0 -8 116 09 06 40 09 08 20 --- 20 00 31 29.1 72.2 -5.6 -43.1 92 122 09 06 41 09 08 20 ZW049 20 00 31 28.5 75.0 -5.5 -42.6 -29 122 No stop 09 11 20 --- 20 03 31 29.0 75.5 -5.5 -42.8 151 134 09 08 21 09 11 20 J0137+3309 20 03 31 29.5 72.8 -5.6 -43.2 -28 134 No stop 09 13 20 --- 20 05 32 29.8 73.1 -5.6 -43.3 92 142 09 11 21 09 13 20 ZW049 20 05 32 29.3 75.9 -5.4 -42.9 -29 142 No stop 09 16 20 --- 20 08 32 29.7 76.4 -5.4 -43.0 151 153 09 13 21 09 16 40 J0137+3309 20 08 52 30.3 73.7 -5.5 -43.5 -8 153 09 16 40 09 18 20 --- 20 10 32 30.5 74.0 -5.5 -43.6 92 160 09 16 41 09 18 20 ZW049 20 10 32 30.0 76.8 -5.4 -43.1 -29 160 No stop 09 21 20 --- 20 13 33 30.4 77.3 -5.3 -43.2 151 171 09 18 21 09 21 20 J0137+3309 20 13 33 31.0 74.5 -5.4 -43.7 -28 171 No stop 09 23 20 --- 20 15 33 31.2 74.9 -5.4 -43.8 92 179 09 21 21 09 23 20 ZW049 20 15 33 30.7 77.7 -5.3 -43.3 -29 179 No stop 09 26 20 --- 20 18 34 31.2 78.3 -5.2 -43.4 151 191 09 23 21 Schedule for DARNHALL (Code Da ) 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 ---------------------------------------------------------------------------------------- --- Thu 7 Mar 2024 Day 67 --- 09 26 40 J0137+3309 20 18 54 31.7 75.5 -5.3 -44.0 -8 191 09 26 40 09 28 20 --- 20 20 34 32.0 75.8 -5.3 -44.0 92 197 09 26 41 09 28 20 ZW049 20 20 34 31.5 78.6 -5.2 -43.4 -29 197 No stop 09 31 20 --- 20 23 35 31.9 79.2 -5.1 -43.5 151 209 09 28 21 09 31 20 J0137+3309 20 23 35 32.4 76.3 -5.3 -44.2 -28 209 No stop 09 33 20 --- 20 25 35 32.7 76.7 -5.2 -44.3 92 216 09 31 21 09 33 20 ZW049 20 25 35 32.2 79.5 -5.1 -43.6 -29 216 No stop 09 36 20 --- 20 28 35 32.6 80.1 -5.1 -43.7 151 228 09 33 21 09 36 40 J0137+3309 20 28 55 33.2 77.3 -5.2 -44.4 -9 228 09 36 40 09 38 20 --- 20 30 36 33.4 77.6 -5.1 -44.5 91 234 09 36 41 09 38 20 ZW049 20 30 36 32.9 80.5 -5.0 -43.8 -29 234 No stop 09 41 20 --- 20 33 36 33.4 81.0 -5.0 -43.8 151 246 09 38 21 09 41 20 J0137+3309 20 33 36 33.9 78.1 -5.1 -44.6 -29 246 No stop 09 43 20 --- 20 35 37 34.2 78.5 -5.1 -44.6 91 254 09 41 21 09 43 20 ZW049 20 35 37 33.7 81.4 -4.9 -43.9 -29 254 No stop 09 46 20 --- 20 38 37 34.1 81.9 -4.9 -44.0 151 265 09 43 21 09 46 40 J0137+3309 20 38 57 34.7 79.1 -5.0 -44.8 -9 265 09 46 40 09 48 20 --- 20 40 37 34.9 79.4 -5.0 -44.8 91 272 09 46 41 09 48 20 ZW049 20 40 37 34.4 82.3 -4.9 -44.0 -30 272 No stop 09 51 20 --- 20 43 38 34.9 82.9 -4.8 -44.1 150 283 09 48 21 09 51 20 J0137+3309 20 43 38 35.4 79.9 -4.9 -44.9 -29 283 No stop 09 53 20 --- 20 45 38 35.6 80.3 -4.9 -45.0 91 291 09 51 21 09 53 20 ZW049 20 45 38 35.2 83.2 -4.8 -44.1 -30 291 No stop 09 56 20 --- 20 48 39 35.6 83.8 -4.7 -44.2 150 303 09 53 21 09 56 40 J0137+3309 20 48 59 36.1 80.9 -4.8 -45.1 -9 303 09 56 40 09 58 20 --- 20 50 39 36.4 81.2 -4.8 -45.1 91 309 09 56 41 09 58 20 ZW049 20 50 39 35.9 84.2 -4.7 -44.2 -30 309 No stop 10 01 20 --- 20 53 40 36.4 84.8 -4.6 -44.3 150 321 09 58 21 10 01 20 J0137+3309 20 53 40 36.8 81.7 -4.8 -45.2 -29 321 No stop 10 03 20 --- 20 55 40 37.1 82.1 -4.7 -45.3 91 328 10 01 21 Schedule for DARNHALL (Code Da ) 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 ---------------------------------------------------------------------------------------- --- Thu 7 Mar 2024 Day 67 --- 10 03 20 ZW049 20 55 40 36.7 85.1 -4.6 -44.3 -30 328 No stop 10 06 20 --- 20 58 40 37.1 85.7 -4.6 -44.4 150 340 10 03 21 10 06 40 J0137+3309 20 59 00 37.6 82.7 -4.7 -45.4 -9 340 10 06 40 10 08 20 --- 21 00 41 37.9 83.0 -4.6 -45.4 91 347 10 06 41 10 08 20 ZW049 21 00 41 37.4 86.1 -4.5 -44.4 -30 347 No stop 10 11 20 --- 21 03 41 37.9 86.7 -4.5 -44.4 150 358 10 08 21 10 11 20 J0137+3309 21 03 41 38.3 83.6 -4.6 -45.5 -29 358 No stop 10 13 20 --- 21 05 41 38.6 84.0 -4.6 -45.5 91 366 10 11 21 10 13 20 ZW049 21 05 41 38.2 87.1 -4.4 -44.5 -30 366 No stop 10 16 20 --- 21 08 42 38.6 87.7 -4.4 -44.5 150 377 10 13 21 10 16 40 J0137+3309 21 09 02 39.1 84.6 -4.5 -45.6 -10 377 10 16 40 10 18 20 --- 21 10 42 39.4 84.9 -4.5 -45.6 90 384 10 16 41 10 18 20 ZW049 21 10 42 38.9 88.0 -4.4 -44.5 -30 384 No stop 10 21 20 --- 21 13 43 39.4 88.6 -4.3 -44.5 150 395 10 18 21 10 21 20 J0137+3309 21 13 43 39.8 85.5 -4.4 -45.6 -30 395 No stop 10 23 20 --- 21 15 43 40.1 85.9 -4.4 -45.7 90 403 10 21 21 10 23 20 ZW049 21 15 43 39.7 89.0 -4.3 -44.5 -31 403 No stop 10 26 20 --- 21 18 44 40.1 89.6 -4.2 -44.5 149 415 10 23 21 10 26 40 J0137+3309 21 19 04 40.6 86.5 -4.3 -45.7 -10 415 10 26 40 10 28 20 --- 21 20 44 40.9 86.8 -4.3 -45.7 90 421 10 26 41 10 28 20 ZW049 21 20 44 40.4 90.0 -4.2 -44.5 -31 421 No stop 10 31 20 --- 21 23 44 40.9 90.6 -4.1 -44.5 149 433 10 28 21 10 31 20 J0137+3309 21 23 44 41.3 87.4 -4.3 -45.8 -30 433 No stop 10 33 20 --- 21 25 45 41.6 87.8 -4.2 -45.8 90 441 10 31 21 10 33 20 ZW049 21 25 45 41.2 91.0 -4.1 -44.5 -31 441 No stop 10 36 20 --- 21 28 45 41.6 91.7 -4.1 -44.5 149 452 10 33 21 10 36 40 J0137+3309 21 29 05 42.1 88.5 -4.2 -45.8 -10 452 10 36 40 10 38 20 --- 21 30 46 42.4 88.8 -4.1 -45.8 90 459 10 36 41 10 38 20 ZW049 21 30 46 41.9 92.1 -4.0 -44.5 -31 459 No stop 10 41 20 --- 21 33 46 42.4 92.7 -4.0 -44.5 149 470 10 38 21 Schedule for DARNHALL (Code Da ) 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 ---------------------------------------------------------------------------------------- --- Thu 7 Mar 2024 Day 67 --- 10 41 20 J0137+3309 21 33 46 42.8 89.4 -4.1 -45.8 -30 470 No stop 10 43 20 --- 21 35 46 43.1 89.8 -4.1 -45.8 90 478 10 41 21 10 43 20 ZW049 21 35 46 42.7 93.1 -3.9 -44.5 -31 478 No stop 10 46 20 --- 21 38 47 43.1 93.7 -3.9 -44.4 149 490 10 43 21 10 46 40 J0137+3309 21 39 07 43.6 90.4 -4.0 -45.8 -11 490 10 46 40 10 48 20 --- 21 40 47 43.9 90.8 -4.0 -45.8 89 496 10 46 41 10 48 20 ZW049 21 40 47 43.4 94.1 -3.9 -44.4 -31 496 No stop 10 51 20 --- 21 43 48 43.9 94.8 -3.8 -44.3 149 508 10 48 21 10 51 20 J0137+3309 21 43 48 44.3 91.4 -3.9 -45.8 -31 508 No stop 10 53 20 --- 21 45 48 44.6 91.8 -3.9 -45.8 89 515 10 51 21 10 53 20 ZW049 21 45 48 44.2 95.2 -3.8 -44.3 -32 515 No stop 10 56 20 --- 21 48 49 44.6 95.9 -3.7 -44.2 148 527 10 53 21 10 56 40 J0137+3309 21 49 09 45.1 92.5 -3.8 -45.8 -11 527 10 56 40 10 58 20 --- 21 50 49 45.4 92.8 -3.8 -45.8 89 533 10 56 41 10 58 20 ZW049 21 50 49 44.9 96.3 -3.7 -44.2 -32 533 No stop 11 01 20 --- 21 53 49 45.4 96.9 -3.6 -44.1 148 545 10 58 21 11 01 20 J0137+3309 21 53 49 45.8 93.5 -3.8 -45.7 -31 545 No stop 11 03 20 --- 21 55 50 46.1 93.9 -3.7 -45.7 89 553 11 01 21 11 03 20 ZW049 21 55 50 45.7 97.4 -3.6 -44.1 -32 553 No stop 11 06 20 --- 21 58 50 46.1 98.0 -3.6 -44.0 148 564 11 03 21 11 06 40 J0137+3309 21 59 10 46.6 94.6 -3.7 -45.6 -11 564 11 06 40 11 08 20 --- 22 00 51 46.9 94.9 -3.6 -45.6 89 571 11 06 41 11 13 20 J0237+2848 22 05 51 35.5 87.8 -4.6 -43.2 241 571 11 13 20 11 18 20 =0234+285 22 10 52 36.2 88.8 -4.5 -43.2 300 590 11 13 21 11 18 40 J0137+3309 22 11 12 48.4 97.2 -3.5 -45.4 -40 590 11 18 40 11 23 40 --- 22 16 13 49.2 98.3 -3.4 -45.2 260 609 11 18 41 11 23 40 ZW049 22 16 13 48.7 102.0 -3.3 -43.3 -33 609 No stop 11 26 40 --- 22 19 14 49.1 102.7 -3.2 -43.2 147 621 11 23 41 11 26 40 J0137+3309 22 19 14 49.6 99.0 -3.3 -45.1 -32 621 No stop 11 28 40 --- 22 21 14 49.9 99.5 -3.3 -45.0 88 629 11 26 41 Schedule for DARNHALL (Code Da ) 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 ---------------------------------------------------------------------------------------- --- Thu 7 Mar 2024 Day 67 --- 11 28 40 ZW049 22 21 14 49.4 103.2 -3.2 -43.1 -33 629 No stop 11 31 40 --- 22 24 14 49.9 103.9 -3.1 -42.9 147 640 11 28 41 11 32 00 J0137+3309 22 24 34 50.4 100.2 -3.2 -44.9 -12 640 11 32 00 11 33 40 --- 22 26 15 50.6 100.6 -3.2 -44.8 88 647 11 32 01 11 33 40 ZW049 22 26 15 50.1 104.4 -3.1 -42.8 -33 647 No stop 11 36 40 --- 22 29 15 50.6 105.2 -3.1 -42.6 147 658 11 33 41 11 36 40 J0137+3309 22 29 15 51.1 101.3 -3.2 -44.7 -32 658 No stop 11 38 40 --- 22 31 16 51.4 101.8 -3.1 -44.6 88 666 11 36 41 11 38 40 ZW049 22 31 16 50.9 105.7 -3.0 -42.5 -34 666 No stop 11 41 40 --- 22 34 16 51.3 106.4 -3.0 -42.3 146 678 11 38 41 11 42 00 J0137+3309 22 34 36 51.9 102.6 -3.1 -44.4 -13 678 11 42 00 11 43 40 --- 22 36 16 52.1 103.0 -3.0 -44.3 87 684 11 42 01 11 43 40 ZW049 22 36 16 51.6 106.9 -2.9 -42.1 -34 684 No stop 11 46 40 --- 22 39 17 52.0 107.7 -2.9 -41.9 146 696 11 43 41 11 46 40 J0137+3309 22 39 17 52.6 103.7 -3.0 -44.2 -33 696 No stop 11 48 40 --- 22 41 17 52.9 104.2 -3.0 -44.0 87 703 11 46 41 11 48 40 ZW049 22 41 17 52.3 108.2 -2.9 -41.8 -34 703 No stop 11 51 40 --- 22 44 18 52.7 109.0 -2.8 -41.5 146 715 11 48 41 11 52 00 J0137+3309 22 44 38 53.3 105.1 -2.9 -43.8 -13 715 11 52 00 11 53 40 --- 22 46 18 53.6 105.5 -2.9 -43.7 87 721 11 52 01 11 53 40 ZW049 22 46 18 53.0 109.5 -2.8 -41.4 -34 721 No stop 11 56 40 --- 22 49 18 53.4 110.4 -2.7 -41.1 146 733 11 53 41 11 56 40 J0137+3309 22 49 18 54.0 106.3 -2.8 -43.5 -33 733 No stop 11 58 40 --- 22 51 19 54.3 106.8 -2.8 -43.4 87 741 11 56 41 11 58 40 ZW049 22 51 19 53.7 110.9 -2.7 -40.9 -35 741 No stop 12 01 40 --- 22 54 19 54.1 111.7 -2.6 -40.7 145 752 11 58 41 12 02 00 J0137+3309 22 54 39 54.8 107.7 -2.7 -43.1 -14 752 12 02 00 12 03 40 --- 22 56 20 55.0 108.1 -2.7 -43.0 86 759 12 02 01 12 03 40 ZW049 22 56 20 54.4 112.3 -2.6 -40.5 -35 759 No stop 12 06 40 --- 22 59 20 54.8 113.1 -2.6 -40.2 145 770 12 03 41 Schedule for DARNHALL (Code Da ) 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 ---------------------------------------------------------------------------------------- --- Thu 7 Mar 2024 Day 67 --- 12 06 40 J0137+3309 22 59 20 55.4 108.9 -2.7 -42.7 -34 770 No stop 12 08 40 --- 23 01 20 55.7 109.5 -2.6 -42.6 86 778 12 06 41 12 08 40 ZW049 23 01 20 55.1 113.7 -2.5 -40.0 -35 778 No stop 12 11 40 --- 23 04 21 55.5 114.6 -2.5 -39.6 145 790 12 08 41 12 12 00 J0137+3309 23 04 41 56.2 110.4 -2.6 -42.2 -14 790 12 12 00 12 13 40 --- 23 06 21 56.4 110.9 -2.5 -42.1 86 796 12 12 01 12 13 40 ZW049 23 06 21 55.8 115.2 -2.4 -39.4 -35 796 No stop 12 16 40 --- 23 09 22 56.2 116.0 -2.4 -39.1 145 808 12 13 41 12 16 40 J0137+3309 23 09 22 56.9 111.7 -2.5 -41.8 -34 808 No stop 12 18 40 --- 23 11 22 57.1 112.3 -2.5 -41.6 86 815 12 16 41 12 18 40 ZW049 23 11 22 56.5 116.6 -2.4 -38.8 -36 815 No stop 12 21 40 --- 23 14 23 56.9 117.6 -2.3 -38.4 144 827 12 18 41 12 22 00 J0137+3309 23 14 43 57.6 113.3 -2.4 -41.2 -15 827 12 22 00 12 23 40 --- 23 16 23 57.8 113.7 -2.4 -41.0 85 833 12 22 01 12 23 40 ZW049 23 16 23 57.1 118.2 -2.3 -38.2 -36 833 No stop 12 26 40 --- 23 19 23 57.5 119.1 -2.2 -37.8 144 845 12 23 41 12 26 40 J0137+3309 23 19 23 58.2 114.6 -2.3 -40.7 -35 845 No stop 12 28 40 --- 23 21 24 58.5 115.3 -2.3 -40.4 85 853 12 26 41 12 28 40 ZW049 23 21 24 57.8 119.8 -2.2 -37.5 -36 853 No stop 12 31 40 --- 23 24 24 58.2 120.7 -2.1 -37.1 144 864 12 28 41 12 32 00 J0137+3309 23 24 44 59.0 116.3 -2.2 -40.0 -15 864 12 32 00 12 33 40 --- 23 26 25 59.2 116.8 -2.2 -39.8 85 871 12 32 01 12 33 40 ZW049 23 26 25 58.4 121.4 -2.1 -36.8 -36 871 No stop 12 36 40 --- 23 29 25 58.8 122.4 -2.1 -36.3 144 882 12 33 41 12 36 40 J0137+3309 23 29 25 59.6 117.8 -2.2 -39.4 -35 882 No stop 12 38 40 --- 23 31 25 59.9 118.4 -2.1 -39.1 85 890 12 36 41 12 38 40 ZW049 23 31 25 59.1 123.0 -2.0 -36.0 -37 890 No stop 12 41 40 --- 23 34 26 59.5 124.1 -2.0 -35.5 143 902 12 38 41 12 42 00 J0137+3309 23 34 46 60.3 119.5 -2.1 -38.6 -16 902 12 42 00 12 43 40 --- 23 36 26 60.5 120.0 -2.0 -38.4 84 908 12 42 01 Schedule for DARNHALL (Code Da ) 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 ---------------------------------------------------------------------------------------- --- Thu 7 Mar 2024 Day 67 --- 12 43 40 ZW049 23 36 26 59.7 124.7 -1.9 -35.2 -37 908 No stop 12 46 40 --- 23 39 27 60.1 125.8 -1.9 -34.7 143 920 12 43 41 12 46 40 J0137+3309 23 39 27 60.9 121.1 -2.0 -37.9 -36 920 No stop 12 48 40 --- 23 41 27 61.2 121.7 -2.0 -37.6 84 927 12 46 41 12 48 40 ZW049 23 41 27 60.3 126.5 -1.8 -34.3 -37 927 No stop 12 51 40 --- 23 44 27 60.7 127.6 -1.8 -33.8 143 939 12 48 41 12 52 00 J0137+3309 23 44 48 61.6 122.9 -1.9 -37.0 -16 939 12 52 00 12 53 40 --- 23 46 28 61.8 123.5 -1.9 -36.7 84 946 12 52 01 12 53 40 ZW049 23 46 28 60.9 128.3 -1.8 -33.4 -38 946 No stop 12 56 40 --- 23 49 28 61.3 129.4 -1.7 -32.8 142 957 12 53 41 12 56 40 J0137+3309 23 49 28 62.2 124.6 -1.8 -36.2 -36 957 No stop 12 58 40 --- 23 51 29 62.4 125.3 -1.8 -35.8 84 965 12 56 41 12 58 40 ZW049 23 51 29 61.5 130.2 -1.7 -32.4 -38 965 No stop 13 01 40 --- 23 54 29 61.8 131.3 -1.6 -31.8 142 976 12 58 41 13 02 00 J0137+3309 23 54 49 62.8 126.5 -1.7 -35.2 -16 976 13 02 00 13 03 40 --- 23 56 29 63.0 127.2 -1.7 -34.9 84 983 13 02 01 13 03 40 ZW049 23 56 29 62.1 132.1 -1.6 -31.3 -38 983 No stop 13 06 40 --- 23 59 30 62.4 133.3 -1.5 -30.7 142 994 13 03 41 13 06 40 J0137+3309 23 59 30 63.4 128.3 -1.7 -34.3 -37 994 No stop 13 08 40 --- 00 01 30 63.6 129.1 -1.6 -33.8 83 1002 13 06 41 13 08 40 ZW049 00 01 30 62.6 134.1 -1.5 -30.2 -38 1002 No stop 13 11 40 --- 00 04 31 62.9 135.3 -1.5 -29.5 142 1014 13 08 41 13 12 00 J0137+3309 00 04 51 64.0 130.4 -1.6 -33.1 -17 1014 13 12 00 13 13 40 --- 00 06 31 64.2 131.1 -1.5 -32.7 83 1020 13 12 01 13 13 40 ZW049 00 06 31 63.1 136.1 -1.4 -29.1 -38 1020 No stop 13 16 40 --- 00 09 32 63.5 137.4 -1.4 -28.3 142 1032 13 13 41 13 16 40 J0137+3309 00 09 32 64.5 132.3 -1.5 -32.0 -37 1032 No stop 13 18 40 --- 00 11 32 64.7 133.1 -1.5 -31.6 83 1040 13 16 41 13 18 40 ZW049 00 11 32 63.7 138.2 -1.3 -27.8 -39 1040 No stop 13 21 40 --- 00 14 32 64.0 139.5 -1.3 -27.1 141 1051 13 18 41 Schedule for DARNHALL (Code Da ) 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 ---------------------------------------------------------------------------------------- --- Thu 7 Mar 2024 Day 67 --- 13 22 00 J0137+3309 00 14 52 65.1 134.5 -1.4 -30.8 -17 1051 13 22 00 13 23 40 --- 00 16 33 65.3 135.3 -1.4 -30.3 83 1058 13 22 01 13 23 40 ZW049 00 16 33 64.1 140.4 -1.3 -26.5 -39 1058 No stop 13 26 40 --- 00 19 33 64.4 141.7 -1.2 -25.7 141 1069 13 23 41 13 26 40 J0137+3309 00 19 33 65.6 136.6 -1.3 -29.6 -37 1069 No stop 13 28 40 --- 00 21 34 65.8 137.5 -1.3 -29.0 83 1077 13 26 41 13 28 40 ZW049 00 21 34 64.6 142.6 -1.2 -25.2 -39 1077 No stop 13 31 40 --- 00 24 34 64.9 144.0 -1.1 -24.3 141 1089 13 28 41 13 32 00 J0137+3309 00 24 54 66.1 139.0 -1.2 -28.1 -17 1089 13 32 00 13 33 40 --- 00 26 34 66.3 139.7 -1.2 -27.6 83 1095 13 32 01 13 33 40 ZW049 00 26 34 65.1 144.9 -1.1 -23.8 -39 1095 No stop 13 36 40 --- 00 29 35 65.3 146.3 -1.0 -22.9 141 1107 13 33 41 13 36 40 J0137+3309 00 29 35 66.6 141.1 -1.2 -26.8 -37 1107 No stop 13 38 40 --- 00 31 35 66.8 142.1 -1.1 -26.2 83 1114 13 36 41 13 38 40 ZW049 00 31 35 65.5 147.3 -1.0 -22.3 -39 1114 No stop 13 41 40 --- 00 34 36 65.7 148.7 -1.0 -21.3 141 1126 13 38 41 13 42 00 J0137+3309 00 34 56 67.1 143.7 -1.1 -25.1 -17 1126 13 42 00 13 43 40 --- 00 36 36 67.2 144.5 -1.0 -24.6 83 1132 13 42 01 13 44 40 J0530+1331 00 37 36 20.6 94.8 -4.9 -37.9 -111 1132 13 44 40 13 51 40 =0528+134 00 44 37 21.6 96.2 -4.8 -37.8 309 1159 13 44 41 13 52 00 J0137+3309 00 44 57 67.9 148.7 -0.9 -21.9 -164 1159 13 52 00 13 59 00 --- 00 51 59 68.4 152.4 -0.8 -19.4 256 1186 13 52 01 13 59 00 ZW049 00 51 59 66.9 157.5 -0.7 -15.6 -39 1186 No stop 14 02 00 --- 00 54 59 67.1 159.1 -0.6 -14.5 141 1198 13 59 01 14 02 00 J0137+3309 00 54 59 68.6 154.0 -0.7 -18.3 -37 1198 No stop 14 04 00 --- 00 56 59 68.8 155.1 -0.7 -17.6 83 1206 14 02 01 14 04 00 ZW049 00 56 59 67.2 160.2 -0.6 -13.8 -39 1206 No stop 14 07 00 --- 01 00 00 67.3 161.8 -0.5 -12.7 141 1217 14 04 01 14 07 20 J0137+3309 01 00 20 69.0 157.0 -0.6 -16.3 -16 1217 14 07 20 14 09 00 --- 01 02 00 69.1 157.9 -0.6 -15.7 84 1224 14 07 21 Schedule for DARNHALL (Code Da ) 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 ---------------------------------------------------------------------------------------- --- Thu 7 Mar 2024 Day 67 --- 14 09 00 ZW049 01 02 00 67.4 162.9 -0.5 -11.9 -38 1224 No stop 14 12 00 --- 01 05 01 67.5 164.5 -0.5 -10.8 142 1235 14 09 01 14 12 00 J0137+3309 01 05 01 69.2 159.6 -0.6 -14.5 -36 1235 No stop 14 14 00 --- 01 07 01 69.3 160.7 -0.5 -13.7 84 1243 14 12 01 14 14 00 ZW049 01 07 01 67.6 165.6 -0.4 -10.0 -38 1243 No stop 14 17 00 --- 01 10 02 67.7 167.3 -0.4 -8.9 142 1255 14 14 01 14 17 20 J0137+3309 01 10 22 69.5 162.7 -0.5 -12.3 -15 1255 14 17 20 14 19 00 --- 01 12 02 69.5 163.7 -0.5 -11.6 85 1261 14 17 21 14 19 00 ZW049 01 12 02 67.8 168.4 -0.3 -8.1 -38 1261 No stop 14 22 00 --- 01 15 02 67.9 170.1 -0.3 -6.9 142 1273 14 19 01 14 22 00 J0137+3309 01 15 02 69.7 165.4 -0.4 -10.4 -35 1273 No stop 14 24 00 --- 01 17 03 69.7 166.6 -0.4 -9.6 85 1280 14 22 01 14 24 00 ZW049 01 17 03 67.9 171.2 -0.3 -6.1 -37 1280 No stop 14 27 00 --- 01 20 03 68.0 172.9 -0.2 -4.9 143 1292 14 24 01 14 27 20 J0137+3309 01 20 23 69.8 168.6 -0.3 -8.1 -14 1292 14 27 20 14 29 00 --- 01 22 03 69.9 169.6 -0.3 -7.4 86 1298 14 27 21 14 29 00 ZW049 01 22 03 68.0 174.1 -0.2 -4.2 -37 1298 No stop 14 32 00 --- 01 25 04 68.0 175.8 -0.1 -3.0 143 1310 14 29 01 14 32 00 J0137+3309 01 25 04 70.0 171.4 -0.2 -6.1 -34 1310 No stop 14 34 00 --- 01 27 04 70.0 172.7 -0.2 -5.3 86 1318 14 32 01 14 34 00 ZW049 01 27 04 68.1 176.9 -0.1 -2.1 -36 1318 No stop 14 37 00 --- 01 30 05 68.1 178.7 -0.0 -0.9 144 1329 14 34 01 14 37 20 J0137+3309 01 30 25 70.1 174.7 -0.1 -3.8 -13 1329 14 37 20 14 39 00 --- 01 32 05 70.1 175.7 -0.1 -3.1 87 1336 14 37 21 14 39 00 ZW049 01 32 05 68.1 179.8 -0.0 -0.1 -35 1336 No stop 14 42 00 --- 01 35 06 68.1 181.5 0.0 1.1 145 1347 14 39 01 14 42 00 J0137+3309 01 35 06 70.1 177.6 -0.1 -1.7 -32 1347 No stop 14 44 00 --- 01 37 06 70.1 178.8 -0.0 -0.9 88 1355 14 42 01 14 44 00 ZW049 01 37 06 68.1 182.7 0.1 1.9 -34 1355 No stop 14 47 00 --- 01 40 06 68.0 184.4 0.1 3.1 146 1367 14 44 01 Schedule for DARNHALL (Code Da ) 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 ---------------------------------------------------------------------------------------- --- Thu 7 Mar 2024 Day 67 --- 14 47 20 J0137+3309 01 40 26 70.1 180.9 0.0 0.6 -11 1367 14 47 20 14 49 00 --- 01 42 07 70.1 181.9 0.1 1.4 89 1373 14 47 21 14 49 00 ZW049 01 42 07 68.0 185.5 0.2 3.9 -33 1373 No stop 14 52 00 --- 01 45 07 68.0 187.2 0.2 5.1 147 1385 14 49 01 14 52 00 J0137+3309 01 45 07 70.1 183.7 0.1 2.7 -30 1385 No stop 14 54 00 --- 01 47 08 70.1 185.0 0.1 3.6 90 1393 14 52 01 14 54 00 ZW049 01 47 08 67.9 188.4 0.2 5.9 -32 1393 No stop 14 57 00 --- 01 50 08 67.9 190.1 0.3 7.1 148 1404 14 54 01 14 57 20 J0137+3309 01 50 28 70.0 187.0 0.2 5.0 -9 1404 14 57 20 14 59 00 --- 01 52 08 70.0 188.0 0.2 5.7 91 1411 14 57 21 14 59 00 ZW049 01 52 08 67.8 191.2 0.3 7.8 -31 1411 No stop 15 02 00 --- 01 55 09 67.7 192.9 0.4 9.0 149 1422 14 59 01 15 02 00 J0137+3309 01 55 09 69.9 189.8 0.3 7.0 -28 1422 No stop 15 04 00 --- 01 57 09 69.9 191.1 0.3 7.9 92 1430 15 02 01 15 04 00 ZW049 01 57 09 67.6 194.0 0.4 9.8 -30 1430 No stop 15 07 00 --- 02 00 10 67.5 195.7 0.5 10.9 150 1441 15 04 01 15 07 20 J0137+3309 02 00 30 69.8 193.1 0.4 9.3 -7 1441 15 07 20 15 09 00 --- 02 02 10 69.7 194.0 0.4 10.0 93 1448 15 07 21 15 09 00 ZW049 02 02 10 67.4 196.8 0.5 11.7 -29 1448 No stop 15 12 00 --- 02 05 11 67.3 198.4 0.5 12.8 151 1460 15 09 01 15 12 00 J0137+3309 02 05 11 69.6 195.8 0.4 11.3 -26 1460 No stop 15 14 00 --- 02 07 11 69.5 197.0 0.5 12.1 94 1467 15 12 01 15 14 00 ZW049 02 07 11 67.2 199.5 0.6 13.5 -28 1467 No stop 15 17 00 --- 02 10 11 67.0 201.1 0.6 14.6 152 1479 15 14 01 15 17 20 J0137+3309 02 10 31 69.3 198.9 0.5 13.5 -6 1479 15 17 20 15 19 00 --- 02 12 12 69.3 199.9 0.6 14.1 94 1485 15 17 21 15 19 00 ZW049 02 12 12 66.9 202.1 0.7 15.3 -27 1485 No stop 15 22 00 --- 02 15 12 66.8 203.7 0.7 16.4 153 1497 15 19 01 15 22 00 J0137+3309 02 15 12 69.1 201.6 0.6 15.3 -26 1497 No stop 15 24 00 --- 02 17 13 69.0 202.7 0.6 16.1 94 1505 15 22 01 Schedule for DARNHALL (Code Da ) 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 ---------------------------------------------------------------------------------------- --- Thu 7 Mar 2024 Day 67 --- 15 24 00 ZW049 02 17 13 66.6 204.7 0.7 17.1 -26 1505 No stop 15 27 00 --- 02 20 13 66.4 206.3 0.8 18.1 154 1516 15 24 01 15 27 20 J0137+3309 02 20 33 68.8 204.6 0.7 17.4 -6 1516 15 27 20 15 29 00 --- 02 22 13 68.7 205.5 0.7 18.0 94 1523 15 27 21 15 29 00 ZW049 02 22 13 66.3 207.3 0.8 18.8 -27 1523 No stop 15 32 00 --- 02 25 14 66.1 208.8 0.9 19.7 153 1534 15 29 01 15 32 00 J0137+3309 02 25 14 68.5 207.1 0.8 19.1 -26 1534 No stop 15 34 00 --- 02 27 14 68.3 208.2 0.8 19.8 94 1542 15 32 01 15 34 00 ZW049 02 27 14 65.9 209.8 0.9 20.4 -27 1542 No stop 15 37 00 --- 02 30 15 65.7 211.3 1.0 21.3 153 1554 15 34 01 15 37 20 J0137+3309 02 30 35 68.1 210.0 0.9 21.0 -6 1554 15 37 20 15 39 00 --- 02 32 15 68.0 210.9 0.9 21.6 94 1560 15 37 21 15 39 00 ZW049 02 32 15 65.6 212.2 1.0 22.0 -27 1560 No stop 15 42 00 --- 02 35 15 65.3 213.7 1.0 22.9 153 1572 15 39 01 15 42 00 J0137+3309 02 35 15 67.7 212.4 0.9 22.6 -26 1572 No stop 15 44 00 --- 02 37 16 67.6 213.4 1.0 23.3 94 1579 15 42 01 15 44 00 ZW049 02 37 16 65.1 214.6 1.1 23.5 -27 1579 No stop 15 47 00 --- 02 40 16 64.9 216.0 1.1 24.3 153 1591 15 44 01 15 47 20 J0137+3309 02 40 36 67.3 215.1 1.0 24.3 -7 1591 15 47 20 15 49 00 --- 02 42 17 67.1 215.9 1.1 24.9 93 1597 15 47 21 15 49 00 ZW049 02 42 17 64.7 216.9 1.2 24.9 -27 1597 No stop 15 52 00 --- 02 45 17 64.4 218.3 1.2 25.7 153 1609 15 49 01 15 52 00 J0137+3309 02 45 17 66.9 217.4 1.1 25.8 -27 1609 No stop 15 54 00 --- 02 47 17 66.7 218.3 1.1 26.4 93 1617 15 52 01 15 54 00 ZW049 02 47 17 64.2 219.1 1.2 26.3 -27 1617 No stop 15 57 00 --- 02 50 18 64.0 220.5 1.3 27.1 153 1628 15 54 01 15 57 20 J0137+3309 02 50 38 66.4 219.9 1.2 27.4 -7 1628 15 57 20 15 59 00 --- 02 52 18 66.2 220.6 1.2 27.9 93 1635 15 57 21 15 59 00 ZW049 02 52 18 63.8 221.3 1.3 27.6 -27 1635 No stop 16 02 00 --- 02 55 19 63.5 222.6 1.4 28.3 153 1646 15 59 01 Schedule for DARNHALL (Code Da ) 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 ---------------------------------------------------------------------------------------- --- Thu 7 Mar 2024 Day 67 --- 16 02 00 J0137+3309 02 55 19 65.9 222.0 1.3 28.7 -27 1646 No stop 16 04 00 --- 02 57 19 65.7 222.9 1.3 29.2 93 1654 16 02 01 16 04 00 ZW049 02 57 19 63.2 223.4 1.4 28.8 -27 1654 No stop 16 07 00 --- 03 00 20 62.9 224.7 1.5 29.5 153 1666 16 04 01 16 07 20 J0137+3309 03 00 40 65.4 224.4 1.4 30.1 -7 1666 16 07 20 16 09 00 --- 03 02 20 65.2 225.1 1.4 30.5 93 1672 16 07 21 16 09 00 ZW049 03 02 20 62.7 225.5 1.5 30.0 -27 1672 No stop 16 12 00 --- 03 05 20 62.4 226.7 1.5 30.7 153 1684 16 09 01 16 12 00 J0137+3309 03 05 20 64.9 226.4 1.4 31.3 -27 1684 No stop 16 14 00 --- 03 07 21 64.6 227.2 1.5 31.8 93 1691 16 12 01 16 14 00 ZW049 03 07 21 62.2 227.5 1.6 31.1 -27 1691 No stop 16 17 00 --- 03 10 21 61.8 228.7 1.6 31.8 153 1703 16 14 01 16 17 20 J0137+3309 03 10 41 64.3 228.6 1.5 32.5 -7 1703 16 17 20 16 19 00 --- 03 12 22 64.1 229.3 1.6 32.9 93 1709 16 17 21 16 20 00 J0530+1331 03 13 22 41.8 132.0 -2.3 -27.3 -251 1709 16 20 00 16 30 00 =0528+134 03 23 23 42.9 135.0 -2.1 -25.9 349 1748 16 20 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: 13 Station: DARNHALL 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: 7 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: 7 8 9 10 11 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) * ZW049 01 28 16.137508 * 01 31 05.200000 01 32 25.380551 0.00 30 51 31.76010 * 31 06 58.00000 31 14 25.58053 0.00 From catalog imbedded in main SCHED input file. Target * J0137+3309 01 34 49.826479 * 01 37 41.299545 01 39 02.639199 0.00 32 54 20.25999 * 33 09 35.13417 33 16 58.08178 0.00 From catalog imbedded in main SCHED input file. Phaseref approx 2.48 degrees from ZW049 0234+285 02 34 55.589590 * 02 37 52.405677 02 39 16.724622 0.00 * J0237+2848 28 35 11.40773 * 28 48 08.98999 28 54 27.24159 0.00 J0237+28 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 58420 observations. 0528+134 05 28 06.759216 * 05 30 56.416746 05 32 18.371544 0.21 * J0530+1331 13 29 42.28882 * 13 31 55.14948 13 33 00.55651 0.24 J0530+13 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 138236 observations. * 3C286 13 28 49.657769 * 13 31 08.288061 13 32 16.510006 0.17 J1331+3030 30 45 58.64066 * 30 30 32.95930 30 22 51.76427 0.16 1328+307 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc J1331+30 GSFC 2016a X/S astro solution, 269 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 ZW049 sess124.L1024 1 2 3 4 5 6 7 12 13 14 15 1 + 4.100 383.846 J0137+3309 sess124.L1024 1 2 3 4 5 6 7 12 13 14 15 1 + 2.789 240.092 J0237+2848 sess124.L1024 1 2 3 4 5 6 7 12 13 14 15 1 + 0.250 19.920 J0530+1331 sess124.L1024 1 2 3 4 5 6 7 12 13 14 15 1 + 0.283 21.510 3C286 sess124.L1024 1 2 3 4 5 6 7 0.117 6.417 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) ZW049 49.0 J0137+3309 51.4 J0237+2848 59.8 J0530+1331 95.7 3C286 138.7 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