COVER INFORMATION Station: ONSALA85 (Code O8 ) Experiment: EVN+e-MERLIN -Growing black holes or supernova factories in extremely op Exp. Code: EB103E Schedule Version: 3.00 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 ONSALA85 (Code O8 ) 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 27 May 2024 Day 148 --- Next scan frequencies: 1626.49 1626.49 1626.49 1626.49 1690.49 1690.49 1690.49 1690.49 Next BBC frequencies: 896.49 896.49 896.49 896.49 960.49 960.49 960.49 960.49 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 15 30 00 3C286 08 40 23 34.2 85.9 -4.9 0.0 0 0 15 30 00 15 37 00 --- 08 47 24 35.2 87.3 -4.7 0.0 420 54 15 30 01 15 39 30 1226+023 08 49 55 19.6 119.5 -3.7 0.0 24 54 15 39 30 15 42 30 --- 08 52 55 20.0 120.2 -3.6 0.0 180 77 15 39 31 15 42 30 NGC4418 08 52 55 17.7 122.1 -3.6 0.0 -22 77 No stop 15 46 00 --- 08 56 26 18.1 123.0 -3.5 0.0 188 104 15 42 31 15 46 00 J1229+0203 08 56 26 20.4 121.0 -3.6 0.0 -22 104 No stop 15 48 00 --- 08 58 26 20.6 121.5 -3.5 0.0 98 120 15 46 01 15 48 00 NGC4418 08 58 26 18.3 123.4 -3.5 0.0 -22 120 No stop 15 51 30 --- 09 01 57 18.7 124.3 -3.4 0.0 188 147 15 48 01 15 52 00 J1229+0203 09 02 27 21.1 122.4 -3.5 0.0 8 147 15 52 00 15 54 00 --- 09 04 27 21.3 122.9 -3.4 0.0 120 162 15 52 01 15 54 00 NGC4418 09 04 27 18.9 124.8 -3.4 0.0 -22 162 No stop 15 57 30 --- 09 07 58 19.3 125.7 -3.3 0.0 188 189 15 54 01 15 57 30 J1229+0203 09 07 58 21.7 123.8 -3.4 0.0 -22 189 No stop 15 59 30 --- 09 09 58 21.9 124.2 -3.3 0.0 98 205 15 57 31 15 59 30 NGC4418 09 09 58 19.6 126.2 -3.3 0.0 -22 205 No stop 16 03 00 --- 09 13 29 19.9 127.0 -3.2 0.0 188 232 15 59 31 16 03 30 J1229+0203 09 13 59 22.4 125.2 -3.3 0.0 8 232 16 03 30 16 05 30 --- 09 15 59 22.6 125.7 -3.2 0.0 120 247 16 03 31 16 05 30 NGC4418 09 15 59 20.2 127.6 -3.2 0.0 -22 247 No stop 16 09 00 --- 09 19 30 20.6 128.4 -3.1 0.0 188 274 16 05 31 16 09 00 J1229+0203 09 19 30 23.0 126.6 -3.2 0.0 -22 274 No stop 16 11 00 --- 09 21 30 23.2 127.1 -3.1 0.0 98 290 16 09 01 16 11 00 NGC4418 09 21 30 20.8 128.9 -3.1 0.0 -22 290 No stop 16 14 30 --- 09 25 01 21.1 129.8 -3.1 0.0 188 317 16 11 01 16 15 00 J1229+0203 09 25 31 23.6 128.0 -3.1 0.0 8 317 16 15 00 16 17 00 --- 09 27 31 23.8 128.5 -3.0 0.0 120 332 16 15 01 Schedule for ONSALA85 (Code O8 ) 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 27 May 2024 Day 148 --- 16 17 00 NGC4418 09 27 31 21.4 130.4 -3.0 0.0 -22 332 No stop 16 20 30 --- 09 31 02 21.8 131.3 -3.0 0.0 188 359 16 17 01 16 20 30 J1229+0203 09 31 02 24.2 129.4 -3.0 0.0 -22 359 No stop 16 22 30 --- 09 33 02 24.4 129.9 -3.0 0.0 98 375 16 20 31 16 22 30 NGC4418 09 33 02 22.0 131.8 -2.9 0.0 -22 375 No stop 16 26 00 --- 09 36 33 22.3 132.6 -2.9 0.0 188 402 16 22 31 16 26 30 J1229+0203 09 37 03 24.8 130.9 -2.9 0.0 8 402 16 26 30 16 28 30 --- 09 39 03 25.0 131.4 -2.9 0.0 120 417 16 26 31 16 28 30 NGC4418 09 39 03 22.6 133.2 -2.8 0.0 -22 417 No stop 16 32 00 --- 09 42 33 22.9 134.1 -2.8 0.0 188 444 16 28 31 16 32 00 J1229+0203 09 42 33 25.4 132.3 -2.8 0.0 -22 444 No stop 16 34 00 --- 09 44 34 25.6 132.8 -2.8 0.0 98 460 16 32 01 16 34 00 NGC4418 09 44 34 23.1 134.6 -2.7 0.0 -22 460 No stop 16 37 30 --- 09 48 04 23.4 135.5 -2.7 0.0 188 487 16 34 01 16 38 00 J1229+0203 09 48 34 26.0 133.8 -2.7 0.0 8 487 16 38 00 16 40 00 --- 09 50 35 26.2 134.4 -2.7 0.0 120 502 16 38 01 16 40 00 NGC4418 09 50 35 23.7 136.1 -2.6 0.0 -22 502 No stop 16 43 30 --- 09 54 05 24.0 137.0 -2.6 0.0 188 529 16 40 01 16 43 30 J1229+0203 09 54 05 26.5 135.3 -2.6 0.0 -22 529 No stop 16 45 00 --- 09 55 36 26.6 135.6 -2.6 0.0 68 541 16 43 31 16 45 00 NGC4418 09 55 36 24.1 137.4 -2.5 0.0 -22 541 No stop 16 48 30 --- 09 59 06 24.4 138.3 -2.5 0.0 188 568 16 45 01 16 49 00 J1229+0203 09 59 36 27.0 136.7 -2.5 0.0 8 568 16 49 00 16 50 00 --- 10 00 36 27.1 137.0 -2.5 0.0 60 576 16 49 01 16 50 00 NGC4418 10 00 36 24.6 138.7 -2.5 0.0 -22 576 No stop 16 53 30 --- 10 04 07 24.9 139.6 -2.4 0.0 188 603 16 50 01 16 53 30 J1229+0203 10 04 07 27.4 137.9 -2.4 0.0 -22 603 No stop 16 55 00 --- 10 05 37 27.6 138.3 -2.4 0.0 68 614 16 53 31 16 55 00 NGC4418 10 05 37 25.0 140.0 -2.4 0.0 -22 614 No stop 16 58 30 --- 10 09 08 25.3 140.9 -2.3 0.0 188 642 16 55 01 Schedule for ONSALA85 (Code O8 ) 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 27 May 2024 Day 148 --- 16 59 00 J1229+0203 10 09 38 27.9 139.3 -2.3 0.0 8 642 16 59 00 17 00 00 --- 10 10 38 28.0 139.6 -2.3 0.0 60 649 16 59 01 17 00 00 NGC4418 10 10 38 25.5 141.3 -2.3 0.0 -22 649 No stop 17 03 30 --- 10 14 09 25.7 142.2 -2.2 0.0 188 676 17 00 01 17 03 30 J1229+0203 10 14 09 28.3 140.5 -2.3 0.0 -22 676 No stop 17 05 00 --- 10 15 39 28.4 140.9 -2.2 0.0 68 688 17 03 31 17 05 00 NGC4418 10 15 39 25.9 142.6 -2.2 0.0 -22 688 No stop 17 08 30 --- 10 19 09 26.2 143.5 -2.2 0.0 188 715 17 05 01 17 09 00 J1229+0203 10 19 40 28.8 142.0 -2.2 0.0 8 715 17 09 00 17 10 00 --- 10 20 40 28.9 142.3 -2.2 0.0 60 723 17 09 01 17 10 00 NGC4418 10 20 40 26.3 143.9 -2.1 0.0 -22 723 No stop 17 13 30 --- 10 24 10 26.5 144.9 -2.1 0.0 188 750 17 10 01 17 13 30 J1229+0203 10 24 10 29.2 143.2 -2.1 0.0 -22 750 No stop 17 15 00 --- 10 25 41 29.3 143.6 -2.1 0.0 68 761 17 13 31 17 15 00 NGC4418 10 25 41 26.7 145.3 -2.0 0.0 -22 761 No stop 17 18 30 --- 10 29 11 26.9 146.2 -2.0 0.0 188 788 17 15 01 17 19 00 J1229+0203 10 29 41 29.6 144.7 -2.0 0.0 8 788 17 19 00 17 20 00 --- 10 30 41 29.7 145.0 -2.0 0.0 60 796 17 19 01 17 20 00 NGC4418 10 30 41 27.0 146.6 -2.0 0.0 -22 796 No stop 17 23 30 --- 10 34 12 27.3 147.5 -1.9 0.0 188 823 17 20 01 17 23 30 J1229+0203 10 34 12 29.9 146.0 -1.9 0.0 -22 823 No stop 17 25 00 --- 10 35 42 30.0 146.4 -1.9 0.0 68 835 17 23 31 17 25 00 NGC4418 10 35 42 27.4 147.9 -1.9 0.0 -22 835 No stop 17 28 30 --- 10 39 13 27.7 148.9 -1.8 0.0 188 862 17 25 01 17 29 00 J1229+0203 10 39 43 30.3 147.5 -1.8 0.0 8 862 17 29 00 17 30 00 --- 10 40 43 30.4 147.8 -1.8 0.0 60 870 17 29 01 17 30 00 NGC4418 10 40 43 27.8 149.3 -1.8 0.0 -22 870 No stop 17 33 30 --- 10 44 14 28.0 150.3 -1.7 0.0 188 897 17 30 01 17 33 30 J1229+0203 10 44 14 30.7 148.7 -1.8 0.0 -22 897 No stop 17 35 00 --- 10 45 44 30.8 149.1 -1.7 0.0 68 908 17 33 31 Schedule for ONSALA85 (Code O8 ) 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 27 May 2024 Day 148 --- 17 35 00 NGC4418 10 45 44 28.1 150.7 -1.7 0.0 -22 908 No stop 17 38 30 --- 10 49 14 28.3 151.6 -1.6 0.0 188 935 17 35 01 17 39 00 J1229+0203 10 49 45 31.0 150.3 -1.7 0.0 8 935 17 39 00 17 40 00 --- 10 50 45 31.1 150.6 -1.7 0.0 60 943 17 39 01 17 40 00 NGC4418 10 50 45 28.4 152.0 -1.6 0.0 -22 943 No stop 17 43 30 --- 10 54 15 28.6 153.0 -1.6 0.0 188 970 17 40 01 17 43 30 J1229+0203 10 54 15 31.3 151.5 -1.6 0.0 -22 970 No stop 17 45 00 --- 10 55 45 31.4 152.0 -1.6 0.0 68 982 17 43 31 17 45 00 NGC4418 10 55 45 28.7 153.4 -1.5 0.0 -22 982 No stop 17 48 30 --- 10 59 16 28.9 154.4 -1.5 0.0 188 1009 17 45 01 17 49 00 J1229+0203 10 59 46 31.7 153.1 -1.5 0.0 8 1009 17 49 00 17 50 00 --- 11 00 46 31.7 153.4 -1.5 0.0 60 1016 17 49 01 17 50 00 NGC4418 11 00 46 29.0 154.8 -1.5 0.0 -22 1016 No stop 17 53 30 --- 11 04 17 29.2 155.8 -1.4 0.0 188 1043 17 50 01 17 53 30 J1229+0203 11 04 17 32.0 154.4 -1.4 0.0 -22 1043 No stop 17 55 00 --- 11 05 47 32.0 154.8 -1.4 0.0 68 1055 17 53 31 17 55 00 NGC4418 11 05 47 29.3 156.2 -1.4 0.0 -22 1055 No stop 17 58 30 --- 11 09 18 29.5 157.2 -1.3 0.0 188 1082 17 55 01 17 59 00 J1229+0203 11 09 48 32.3 156.0 -1.3 0.0 8 1082 17 59 00 18 00 00 --- 11 10 48 32.3 156.3 -1.3 0.0 60 1090 17 59 01 18 00 00 NGC4418 11 10 48 29.6 157.6 -1.3 0.0 -22 1090 No stop 18 03 30 --- 11 14 19 29.7 158.6 -1.2 0.0 188 1117 18 00 01 18 03 30 J1229+0203 11 14 19 32.5 157.3 -1.3 0.0 -22 1117 No stop 18 05 00 --- 11 15 49 32.6 157.7 -1.2 0.0 68 1128 18 03 31 18 05 00 NGC4418 11 15 49 29.8 159.0 -1.2 0.0 -22 1128 No stop 18 08 30 --- 11 19 19 30.0 160.0 -1.1 0.0 188 1156 18 05 01 18 09 00 J1229+0203 11 19 49 32.8 158.9 -1.2 0.0 8 1156 18 09 00 18 10 00 --- 11 20 50 32.8 159.2 -1.2 0.0 60 1163 18 09 01 18 10 00 NGC4418 11 20 50 30.1 160.5 -1.1 0.0 -22 1163 No stop 18 13 30 --- 11 24 20 30.2 161.5 -1.1 0.0 188 1190 18 10 01 Schedule for ONSALA85 (Code O8 ) 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 27 May 2024 Day 148 --- 18 13 30 J1229+0203 11 24 20 33.0 160.2 -1.1 0.0 -22 1190 No stop 18 15 00 --- 11 25 50 33.1 160.6 -1.1 0.0 68 1202 18 13 31 18 15 00 NGC4418 11 25 50 30.3 161.9 -1.0 0.0 -22 1202 No stop 18 18 30 --- 11 29 21 30.4 162.9 -1.0 0.0 188 1229 18 15 01 18 19 00 J1229+0203 11 29 51 33.2 161.8 -1.0 0.0 8 1229 18 19 00 18 20 00 --- 11 30 51 33.3 162.1 -1.0 0.0 60 1237 18 19 01 18 20 00 NGC4418 11 30 51 30.5 163.3 -1.0 0.0 -22 1237 No stop 18 23 30 --- 11 34 22 30.6 164.3 -0.9 0.0 188 1264 18 20 01 18 23 30 J1229+0203 11 34 22 33.4 163.2 -0.9 0.0 -22 1264 No stop 18 25 00 --- 11 35 52 33.5 163.6 -0.9 0.0 68 1275 18 23 31 18 25 00 NGC4418 11 35 52 30.7 164.8 -0.9 0.0 -22 1275 No stop 18 28 30 --- 11 39 23 30.8 165.8 -0.8 0.0 188 1302 18 25 01 18 29 00 J1229+0203 11 39 53 33.6 164.8 -0.8 0.0 8 1302 18 29 00 18 30 00 --- 11 40 53 33.7 165.1 -0.8 0.0 60 1310 18 29 01 18 30 00 NGC4418 11 40 53 30.8 166.2 -0.8 0.0 -22 1310 No stop 18 33 30 --- 11 44 23 30.9 167.2 -0.7 0.0 188 1337 18 30 01 18 33 30 J1229+0203 11 44 23 33.8 166.1 -0.8 0.0 -22 1337 No stop 18 35 00 --- 11 45 54 33.8 166.6 -0.7 0.0 68 1349 18 33 31 18 35 00 NGC4418 11 45 54 31.0 167.6 -0.7 0.0 -22 1349 No stop 18 38 30 --- 11 49 24 31.1 168.7 -0.6 0.0 188 1376 18 35 01 18 39 00 J1229+0203 11 49 54 33.9 167.8 -0.7 0.0 8 1376 18 39 00 18 40 00 --- 11 50 55 34.0 168.1 -0.7 0.0 60 1384 18 39 01 18 40 00 NGC4418 11 50 55 31.1 169.1 -0.6 0.0 -22 1384 No stop 18 43 30 --- 11 54 25 31.2 170.1 -0.6 0.0 188 1411 18 40 01 18 43 30 J1229+0203 11 54 25 34.1 169.1 -0.6 0.0 -22 1411 No stop 18 45 00 --- 11 55 55 34.1 169.6 -0.6 0.0 68 1422 18 43 31 18 45 00 NGC4418 11 55 55 31.2 170.6 -0.5 0.0 -22 1422 No stop 18 48 30 --- 11 59 26 31.3 171.6 -0.5 0.0 188 1449 18 45 01 18 49 00 J1229+0203 11 59 56 34.2 170.8 -0.5 0.0 8 1449 18 49 00 18 50 00 --- 12 00 56 34.2 171.1 -0.5 0.0 60 1457 18 49 01 Schedule for ONSALA85 (Code O8 ) 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 27 May 2024 Day 148 --- 18 50 00 NGC4418 12 00 56 31.3 172.0 -0.5 0.0 -22 1457 No stop 18 53 30 --- 12 04 27 31.4 173.0 -0.4 0.0 188 1484 18 50 01 18 53 30 J1229+0203 12 04 27 34.3 172.2 -0.4 0.0 -22 1484 No stop 18 55 00 --- 12 05 57 34.3 172.6 -0.4 0.0 68 1496 18 53 31 18 55 00 NGC4418 12 05 57 31.4 173.5 -0.4 0.0 -22 1496 No stop 18 58 30 --- 12 09 28 31.5 174.5 -0.3 0.0 188 1523 18 55 01 18 59 00 J1229+0203 12 09 58 34.4 173.8 -0.3 0.0 8 1523 18 59 00 19 00 00 --- 12 10 58 34.4 174.1 -0.3 0.0 60 1530 18 59 01 19 00 00 NGC4418 12 10 58 31.5 175.0 -0.3 0.0 -22 1530 No stop 19 03 30 --- 12 14 28 31.5 176.0 -0.2 0.0 188 1557 19 00 01 19 03 30 J1229+0203 12 14 28 34.4 175.2 -0.3 0.0 -22 1557 No stop 19 05 00 --- 12 15 59 34.5 175.6 -0.2 0.0 68 1569 19 03 31 19 05 00 NGC4418 12 15 59 31.5 176.4 -0.2 0.0 -22 1569 No stop 19 08 30 --- 12 19 29 31.6 177.5 -0.1 0.0 188 1596 19 05 01 19 09 00 J1229+0203 12 19 59 34.5 176.9 -0.2 0.0 8 1596 19 09 00 19 10 00 --- 12 20 59 34.5 177.2 -0.2 0.0 60 1604 19 09 01 19 10 00 NGC4418 12 20 59 31.6 177.9 -0.1 0.0 -22 1604 No stop 19 13 30 --- 12 24 30 31.6 178.9 -0.1 0.0 188 1631 19 10 01 19 13 30 J1229+0203 12 24 30 34.5 178.2 -0.1 0.0 -22 1631 No stop 19 15 00 --- 12 26 00 34.5 178.7 -0.1 0.0 68 1642 19 13 31 19 15 00 NGC4418 12 26 00 31.6 179.4 -0.0 0.0 -22 1642 No stop 19 18 30 --- 12 29 31 31.6 180.4 0.0 0.0 188 1669 19 15 01 19 19 00 J1229+0203 12 30 01 34.5 179.9 -0.0 0.0 8 1669 19 19 00 19 20 00 --- 12 31 01 34.5 180.2 0.0 0.0 60 1677 19 19 01 19 20 00 NGC4418 12 31 01 31.6 180.8 0.0 0.0 -22 1677 No stop 19 23 30 --- 12 34 32 31.6 181.9 0.1 0.0 188 1704 19 20 01 19 23 30 J1229+0203 12 34 32 34.5 181.3 0.1 0.0 -22 1704 No stop 19 25 00 --- 12 36 02 34.5 181.7 0.1 0.0 68 1716 19 23 31 19 25 00 NGC4418 12 36 02 31.6 182.3 0.1 0.0 -22 1716 No stop 19 28 30 --- 12 39 32 31.5 183.3 0.2 0.0 188 1743 19 25 01 Schedule for ONSALA85 (Code O8 ) 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 27 May 2024 Day 148 --- 19 29 00 J1229+0203 12 40 03 34.5 182.9 0.2 0.0 8 1743 19 29 00 19 30 00 --- 12 41 03 34.5 183.2 0.2 0.0 60 1751 19 29 01 19 30 00 NGC4418 12 41 03 31.5 183.8 0.2 0.0 -22 1751 No stop 19 33 30 --- 12 44 33 31.5 184.8 0.3 0.0 188 1778 19 30 01 19 33 30 J1229+0203 12 44 33 34.5 184.3 0.2 0.0 -22 1778 No stop 19 35 00 --- 12 46 04 34.4 184.8 0.3 0.0 68 1789 19 33 31 19 35 00 NGC4418 12 46 04 31.5 185.2 0.3 0.0 -22 1789 No stop 19 38 30 --- 12 49 34 31.4 186.3 0.4 0.0 188 1816 19 35 01 19 39 00 J1229+0203 12 50 04 34.4 186.0 0.3 0.0 8 1816 19 39 00 19 40 00 --- 12 51 04 34.4 186.3 0.3 0.0 60 1824 19 39 01 19 40 00 NGC4418 12 51 04 31.4 186.7 0.4 0.0 -22 1824 No stop 19 43 30 --- 12 54 35 31.4 187.7 0.4 0.0 188 1851 19 40 01 19 43 30 J1229+0203 12 54 35 34.3 187.3 0.4 0.0 -22 1851 No stop 19 45 00 --- 12 56 05 34.3 187.8 0.4 0.0 68 1863 19 43 31 19 45 00 NGC4418 12 56 05 31.3 188.2 0.5 0.0 -22 1863 No stop 19 48 30 --- 12 59 36 31.3 189.2 0.5 0.0 188 1890 19 45 01 19 49 00 J1229+0203 13 00 06 34.2 189.0 0.5 0.0 8 1890 19 49 00 19 50 00 --- 13 01 06 34.2 189.3 0.5 0.0 60 1898 19 49 01 19 50 00 NGC4418 13 01 06 31.2 189.6 0.5 0.0 -22 1898 No stop 19 53 30 --- 13 04 37 31.1 190.7 0.6 0.0 188 1925 19 50 01 19 53 30 J1229+0203 13 04 37 34.1 190.4 0.6 0.0 -22 1925 No stop 19 55 00 --- 13 06 07 34.1 190.8 0.6 0.0 68 1936 19 53 31 19 55 00 NGC4418 13 06 07 31.1 191.1 0.6 0.0 -22 1936 No stop 19 58 30 --- 13 09 37 31.0 192.1 0.7 0.0 188 1963 19 55 01 19 59 00 J1229+0203 13 10 08 34.0 192.0 0.7 0.0 8 1963 19 59 00 20 00 00 --- 13 11 08 33.9 192.3 0.7 0.0 60 1971 19 59 01 20 00 00 NGC4418 13 11 08 31.0 192.5 0.7 0.0 -22 1971 No stop 20 03 30 --- 13 14 38 30.9 193.6 0.8 0.0 188 1998 20 00 01 20 03 30 J1229+0203 13 14 38 33.8 193.4 0.7 0.0 -22 1998 No stop 20 05 00 --- 13 16 08 33.8 193.8 0.8 0.0 68 2010 20 03 31 Schedule for ONSALA85 (Code O8 ) 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 27 May 2024 Day 148 --- 20 05 00 NGC4418 13 16 08 30.8 194.0 0.8 0.0 -22 2010 No stop 20 08 30 --- 13 19 39 30.7 195.0 0.9 0.0 188 2037 20 05 01 20 09 00 J1229+0203 13 20 09 33.6 195.0 0.8 0.0 8 2037 20 09 00 20 10 00 --- 13 21 09 33.6 195.3 0.8 0.0 60 2044 20 09 01 20 10 00 NGC4418 13 21 09 30.6 195.4 0.9 0.0 -22 2044 No stop 20 13 30 --- 13 24 40 30.5 196.5 0.9 0.0 188 2071 20 10 01 20 13 30 J1229+0203 13 24 40 33.5 196.3 0.9 0.0 -22 2071 No stop 20 15 00 --- 13 26 10 33.4 196.8 0.9 0.0 68 2083 20 13 31 20 15 00 NGC4418 13 26 10 30.4 196.9 1.0 0.0 -22 2083 No stop 20 18 30 --- 13 29 41 30.3 197.9 1.0 0.0 188 2110 20 15 01 20 19 00 J1229+0203 13 30 11 33.3 198.0 1.0 0.0 8 2110 20 19 00 20 20 00 --- 13 31 11 33.2 198.3 1.0 0.0 60 2118 20 19 01 20 20 00 NGC4418 13 31 11 30.2 198.3 1.1 0.0 -22 2118 No stop 20 23 30 --- 13 34 42 30.1 199.3 1.1 0.0 188 2145 20 20 01 20 23 30 J1229+0203 13 34 42 33.1 199.3 1.1 0.0 -22 2145 No stop 20 25 00 --- 13 36 12 33.0 199.7 1.1 0.0 68 2156 20 23 31 20 25 00 NGC4418 13 36 12 30.0 199.7 1.1 0.0 -22 2156 No stop 20 28 30 --- 13 39 42 29.9 200.7 1.2 0.0 188 2183 20 25 01 20 29 00 J1229+0203 13 40 12 32.8 200.9 1.2 0.0 8 2183 20 29 00 20 30 00 --- 13 41 13 32.8 201.2 1.2 0.0 60 2191 20 29 01 20 30 00 NGC4418 13 41 13 29.8 201.2 1.2 0.0 -22 2191 No stop 20 33 30 --- 13 44 43 29.6 202.1 1.3 0.0 188 2218 20 30 01 20 33 30 J1229+0203 13 44 43 32.6 202.2 1.2 0.0 -22 2218 No stop 20 35 00 --- 13 46 13 32.5 202.7 1.3 0.0 68 2230 20 33 31 20 35 00 NGC4418 13 46 13 29.5 202.6 1.3 0.0 -22 2230 No stop 20 38 30 --- 13 49 44 29.3 203.6 1.4 0.0 188 2257 20 35 01 20 39 00 J1229+0203 13 50 14 32.3 203.8 1.3 0.0 8 2257 20 39 00 20 40 00 --- 13 51 14 32.2 204.1 1.3 0.0 60 2265 20 39 01 20 40 00 NGC4418 13 51 14 29.3 204.0 1.4 0.0 -22 2265 No stop 20 43 30 --- 13 54 45 29.1 205.0 1.4 0.0 188 2292 20 40 01 Schedule for ONSALA85 (Code O8 ) 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 27 May 2024 Day 148 --- 20 43 30 J1229+0203 13 54 45 32.1 205.1 1.4 0.0 -22 2292 No stop 20 45 00 --- 13 56 15 32.0 205.5 1.4 0.0 68 2303 20 43 31 20 45 00 NGC4418 13 56 15 29.0 205.4 1.5 0.0 -22 2303 No stop 20 48 30 --- 13 59 46 28.8 206.4 1.5 0.0 188 2330 20 45 01 20 49 00 J1229+0203 14 00 16 31.7 206.7 1.5 0.0 8 2330 20 49 00 20 50 00 --- 14 01 16 31.7 207.0 1.5 0.0 60 2338 20 49 01 20 50 00 NGC4418 14 01 16 28.7 206.8 1.6 0.0 -22 2338 No stop 20 53 30 --- 14 04 46 28.5 207.7 1.6 0.0 188 2365 20 50 01 20 53 30 J1229+0203 14 04 46 31.4 208.0 1.6 0.0 -22 2365 No stop 20 55 00 --- 14 06 17 31.4 208.4 1.6 0.0 68 2377 20 53 31 20 55 00 NGC4418 14 06 17 28.4 208.1 1.6 0.0 -22 2377 No stop 20 58 30 --- 14 09 47 28.2 209.1 1.7 0.0 188 2404 20 55 01 20 59 00 J1229+0203 14 10 17 31.1 209.5 1.7 0.0 8 2404 20 59 00 21 00 00 --- 14 11 18 31.0 209.8 1.7 0.0 60 2411 20 59 01 21 00 00 NGC4418 14 11 18 28.1 209.5 1.7 0.0 -22 2411 No stop 21 03 30 --- 14 14 48 27.8 210.5 1.8 0.0 188 2439 21 00 01 21 03 30 J1229+0203 14 14 48 30.8 210.8 1.7 0.0 -22 2439 No stop 21 05 00 --- 14 16 18 30.7 211.2 1.8 0.0 68 2450 21 03 31 21 05 00 NGC4418 14 16 18 27.7 210.9 1.8 0.0 -22 2450 No stop 21 08 30 --- 14 19 49 27.5 211.8 1.9 0.0 188 2477 21 05 01 21 09 00 J1229+0203 14 20 19 30.4 212.3 1.8 0.0 8 2477 21 09 00 21 10 00 --- 14 21 19 30.3 212.6 1.8 0.0 60 2485 21 09 01 21 10 00 NGC4418 14 21 19 27.4 212.2 1.9 0.0 -22 2485 No stop 21 13 30 --- 14 24 50 27.1 213.2 1.9 0.0 188 2512 21 10 01 21 13 30 J1229+0203 14 24 50 30.1 213.6 1.9 0.0 -22 2512 No stop 21 15 00 --- 14 26 20 30.0 214.0 1.9 0.0 68 2524 21 13 31 21 15 00 NGC4418 14 26 20 27.0 213.6 2.0 0.0 -22 2524 No stop 21 18 30 --- 14 29 51 26.7 214.5 2.0 0.0 188 2551 21 15 01 21 19 00 J1229+0203 14 30 21 29.6 215.1 2.0 0.0 8 2551 21 19 00 21 20 00 --- 14 31 21 29.6 215.4 2.0 0.0 60 2558 21 19 01 Schedule for ONSALA85 (Code O8 ) 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 27 May 2024 Day 148 --- 21 20 00 NGC4418 14 31 21 26.6 214.9 2.1 0.0 -22 2558 No stop 21 23 30 --- 14 34 51 26.3 215.9 2.1 0.0 188 2585 21 20 01 21 23 30 J1229+0203 14 34 51 29.3 216.3 2.1 0.0 -22 2585 No stop 21 25 00 --- 14 36 22 29.2 216.7 2.1 0.0 68 2597 21 23 31 21 25 00 NGC4418 14 36 22 26.2 216.3 2.1 0.0 -22 2597 No stop 21 28 30 --- 14 39 52 25.9 217.2 2.2 0.0 188 2624 21 25 01 21 29 00 J1229+0203 14 40 22 28.8 217.8 2.2 0.0 8 2624 21 29 00 21 30 00 --- 14 41 22 28.8 218.1 2.2 0.0 60 2632 21 29 01 21 30 00 NGC4418 14 41 22 25.8 217.6 2.2 0.0 -22 2632 No stop 21 33 30 --- 14 44 53 25.5 218.5 2.3 0.0 188 2659 21 30 01 21 33 30 J1229+0203 14 44 53 28.5 219.0 2.2 0.0 -22 2659 No stop 21 35 00 --- 14 46 23 28.3 219.4 2.3 0.0 68 2670 21 33 31 21 35 00 NGC4418 14 46 23 25.4 218.9 2.3 0.0 -22 2670 No stop 21 38 30 --- 14 49 54 25.1 219.8 2.4 0.0 188 2697 21 35 01 21 39 00 J1229+0203 14 50 24 28.0 220.5 2.3 0.0 8 2697 21 39 00 21 40 00 --- 14 51 24 27.9 220.8 2.4 0.0 60 2705 21 39 01 21 40 00 NGC4418 14 51 24 25.0 220.2 2.4 0.0 -22 2705 No stop 21 43 30 --- 14 54 55 24.7 221.1 2.4 0.0 188 2732 21 40 01 21 43 30 J1229+0203 14 54 55 27.6 221.7 2.4 0.0 -22 2732 No stop 21 45 00 --- 14 56 25 27.5 222.1 2.4 0.0 68 2744 21 43 31 21 45 00 NGC4418 14 56 25 24.5 221.5 2.5 0.0 -22 2744 No stop 21 48 30 --- 14 59 55 24.2 222.4 2.5 0.0 188 2771 21 45 01 21 49 00 J1229+0203 15 00 26 27.1 223.1 2.5 0.0 8 2771 21 49 00 21 50 00 --- 15 01 26 27.0 223.4 2.5 0.0 60 2779 21 49 01 21 50 00 NGC4418 15 01 26 24.1 222.8 2.6 0.0 -22 2779 No stop 21 53 30 --- 15 04 56 23.7 223.7 2.6 0.0 188 2806 21 50 01 21 53 30 J1229+0203 15 04 56 26.7 224.3 2.6 0.0 -22 2806 No stop 21 55 00 --- 15 06 27 26.5 224.7 2.6 0.0 68 2817 21 53 31 21 55 00 NGC4418 15 06 27 23.6 224.0 2.6 0.0 -22 2817 No stop 21 58 30 --- 15 09 57 23.3 224.9 2.7 0.0 188 2844 21 55 01 Schedule for ONSALA85 (Code O8 ) 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 27 May 2024 Day 148 --- 21 59 00 J1229+0203 15 10 27 26.1 225.7 2.7 0.0 8 2844 21 59 00 22 00 00 --- 15 11 27 26.0 226.0 2.7 0.0 60 2852 21 59 01 22 00 00 NGC4418 15 11 27 23.1 225.3 2.7 0.0 -22 2852 No stop 22 03 30 --- 15 14 58 22.8 226.2 2.8 0.0 188 2879 22 00 01 22 03 30 J1229+0203 15 14 58 25.7 226.9 2.7 0.0 -22 2879 No stop 22 05 00 --- 15 16 28 25.6 227.3 2.8 0.0 68 2891 22 03 31 22 05 00 NGC4418 15 16 28 22.6 226.5 2.8 0.0 -22 2891 No stop 22 08 30 --- 15 19 59 22.3 227.4 2.9 0.0 188 2918 22 05 01 22 09 00 J1229+0203 15 20 29 25.2 228.3 2.8 0.0 8 2918 22 09 00 22 10 00 --- 15 21 29 25.1 228.5 2.9 0.0 60 2925 22 09 01 22 10 00 NGC4418 15 21 29 22.1 227.8 2.9 0.0 -22 2925 No stop 22 13 30 --- 15 25 00 21.8 228.7 2.9 0.0 188 2953 22 10 01 22 13 30 J1229+0203 15 25 00 24.7 229.4 2.9 0.0 -22 2953 No stop 22 15 00 --- 15 26 30 24.5 229.8 2.9 0.0 68 2964 22 13 31 22 15 00 NGC4418 15 26 30 21.6 229.0 3.0 0.0 -22 2964 No stop 22 18 30 --- 15 30 00 21.3 229.9 3.0 0.0 188 2991 22 15 01 22 19 00 J1229+0203 15 30 30 24.1 230.8 3.0 0.0 8 2991 22 19 00 22 20 00 --- 15 31 31 24.0 231.0 3.0 0.0 60 2999 22 19 01 22 20 00 NGC4418 15 31 31 21.1 230.3 3.1 0.0 -22 2999 No stop 22 23 30 --- 15 35 01 20.8 231.1 3.1 0.0 188 3026 22 20 01 22 23 30 J1229+0203 15 35 01 23.7 231.9 3.1 0.0 -22 3026 No stop 22 25 00 --- 15 36 31 23.5 232.3 3.1 0.0 68 3038 22 23 31 22 25 00 NGC4418 15 36 31 20.6 231.5 3.1 0.0 -22 3038 No stop 22 28 30 --- 15 40 02 20.2 232.3 3.2 0.0 188 3065 22 25 01 22 29 00 J1229+0203 15 40 32 23.1 233.3 3.2 0.0 8 3065 22 29 00 22 30 00 --- 15 41 32 23.0 233.5 3.2 0.0 60 3072 22 29 01 22 30 00 NGC4418 15 41 32 20.1 232.7 3.2 0.0 -22 3072 No stop 22 33 30 --- 15 45 03 19.7 233.5 3.3 0.0 188 3099 22 30 01 22 33 30 J1229+0203 15 45 03 22.6 234.4 3.2 0.0 -22 3099 No stop 22 35 00 --- 15 46 33 22.4 234.7 3.3 0.0 68 3111 22 33 31 Schedule for ONSALA85 (Code O8 ) 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 27 May 2024 Day 148 --- 22 35 00 NGC4418 15 46 33 19.5 233.9 3.3 0.0 -22 3111 No stop 22 38 30 --- 15 50 04 19.1 234.7 3.4 0.0 188 3138 22 35 01 22 39 00 J1229+0203 15 50 34 22.0 235.7 3.3 0.0 8 3138 22 39 00 22 40 00 --- 15 51 34 21.9 235.9 3.4 0.0 60 3146 22 39 01 22 40 00 NGC4418 15 51 34 19.0 235.1 3.4 0.0 -22 3146 No stop 22 43 30 --- 15 55 05 18.6 235.9 3.4 0.0 188 3173 22 40 01 22 43 30 J1229+0203 15 55 05 21.5 236.8 3.4 0.0 -22 3173 No stop 22 45 00 --- 15 56 35 21.3 237.1 3.4 0.0 68 3184 22 43 31 22 45 00 NGC4418 15 56 35 18.4 236.3 3.5 0.0 -22 3184 No stop 22 48 30 --- 16 00 05 18.0 237.1 3.5 0.0 188 3211 22 45 01 22 49 00 J1229+0203 16 00 35 20.8 238.1 3.5 0.0 8 3211 22 49 00 22 50 00 --- 16 01 36 20.7 238.3 3.5 0.0 60 3219 22 49 01 22 50 00 NGC4418 16 01 36 17.9 237.4 3.6 0.0 -22 3219 No stop 22 53 30 --- 16 05 06 17.5 238.3 3.6 0.0 188 3246 22 50 01 22 53 30 J1229+0203 16 05 06 20.3 239.2 3.6 0.0 -22 3246 No stop 22 55 00 --- 16 06 36 20.1 239.5 3.6 0.0 68 3258 22 53 31 22 55 00 NGC4418 16 06 36 17.3 238.6 3.6 0.0 -22 3258 No stop 22 58 30 --- 16 10 07 16.9 239.4 3.7 0.0 188 3285 22 55 01 22 59 00 J1229+0203 16 10 37 19.7 240.5 3.7 0.0 8 3285 22 59 00 23 00 00 --- 16 11 37 19.6 240.7 3.7 0.0 60 3293 22 59 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess224.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: 4 Station: ONSALA85 Total bit rate: 1024 Format: VDIF Bits per sample: 2 Sample rate: 64.000 Number of channels: 8 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 730.00 730.00 730.00 730.00 730.00 730.00 730.00 730.00 Net SB= L L U U L L U U IF SB = U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 9 1 9 2 10 2 10 BBC SB= L L U U L L U U IF = A1 C1 A1 C1 A1 C1 A1 C1 The following frequency sets based on these setups were used. Frequency Set: 6 Setup file default. Used with PCAL = off LO sum= 1626.49 1626.49 1626.49 1626.49 1690.49 1690.49 1690.49 1690.49 BBC fr= 896.49 896.49 896.49 896.49 960.49 960.49 960.49 960.49 Bandwd= 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 Matching frequency sets: 6 Track assignments are: track1= 1, 2, 3, 4, 5, 6, 7, 8 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * NGC4418 12 24 20.760535 * 12 26 54.620000 12 28 10.083255 0.00 -00 36 03.55330 *-00 52 39.40000 -01 00 47.72744 0.00 From catalog imbedded in main SCHED input file. Target * J1229+0203 12 26 33.245846 * 12 29 06.699742 12 30 21.992954 0.00 02 19 43.30562 * 02 03 08.59812 01 55 01.66403 0.00 From catalog imbedded in main SCHED input file. Phaseref approx 1.39 degrees from IRAS17578-0400 3C273B 12 26 33.245835 * 12 29 06.699731 12 30 21.992943 1.03 J1229+0203 02 19 43.30570 * 02 03 08.59820 01 55 01.66411 1.38 3C273 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc * 1226+023 GSFC 2016a X/S astro solution, 32136 observations. J1229+02 * 3C286 13 28 49.657769 * 13 31 08.288061 13 32 17.007928 0.17 J1331+3030 30 45 58.64066 * 30 30 32.95930 30 23 05.22455 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 NGC4418 sess224.L1024 1 2 3 4 5 6 7 8 9 10 5.017 394.277 J1229+0203 sess224.L1024 1 2 3 4 5 6 7 8 9 10 1.917 130.274 1226+023 sess224.L1024 1 2 3 4 5 6 7 8 9 10 0.050 4.550 3C286 sess224.L1024 1 2 3 4 5 6 7 8 9 10 0.117 10.617 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) NGC4418 119.9 J1229+0203 119.1 1226+023 119.1 3C286 114.2 Barry Clark estimates from predictions by Ketan Desai of IPM scattering sizes that the Sun will cause amplitude reductions on the longest VLBA baselines at a solar distance of 60deg F^(-0.6) where F is in GHz. For common VLBI bands, this is: 327 MHz 117. deg 610 MHz 81. deg 1.6 GHz 45. deg 2.3 GHz 36. deg 5.0 GHz 23. deg 8.4 GHz 17. deg 15.0 GHz 12. deg 22.0 GHz 9. deg 43.0 GHz 6. deg