COVER INFORMATION Station: HART (Code Hh ) 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 HART (Code Hh ) Page 2 EVN+e-MERLIN -Growing black holes or supernova factories in extremely op UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Mon 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: 116.49 116.49 116.49 116.49 180.49 180.49 180.49 180.49 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 15 30 00 3C286 09 43 28 11.5 47.7 -3.8 0.0 0 0 15 30 00 15 37 00 --- 09 50 29 12.7 46.7 -3.7 0.0 420 54 15 30 01 15 39 30 1226+023 09 52 59 42.9 59.9 -2.6 0.0 66 54 15 39 30 15 42 30 --- 09 56 00 43.5 59.2 -2.6 0.0 180 77 15 39 31 15 42 30 NGC4418 09 56 00 45.7 62.0 -2.5 0.0 -33 77 No stop 15 46 00 --- 09 59 30 46.4 61.2 -2.5 0.0 177 104 15 42 31 15 46 00 J1229+0203 09 59 30 44.2 58.5 -2.5 0.0 -33 104 No stop 15 48 00 --- 10 01 30 44.5 58.0 -2.5 0.0 87 120 15 46 01 15 48 00 NGC4418 10 01 30 46.8 60.8 -2.4 0.0 -33 120 No stop 15 51 30 --- 10 05 01 47.5 60.0 -2.4 0.0 177 147 15 48 01 15 52 00 J1229+0203 10 05 31 45.3 57.1 -2.4 0.0 -3 147 15 52 00 15 54 00 --- 10 07 31 45.7 56.6 -2.4 0.0 117 162 15 52 01 15 54 00 NGC4418 10 07 31 48.0 59.4 -2.3 0.0 -33 162 No stop 15 57 30 --- 10 11 02 48.7 58.5 -2.3 0.0 177 189 15 54 01 15 57 30 J1229+0203 10 11 02 46.3 55.8 -2.3 0.0 -33 189 No stop 15 59 30 --- 10 13 02 46.7 55.3 -2.3 0.0 87 205 15 57 31 15 59 30 NGC4418 10 13 02 49.1 58.0 -2.3 0.0 -33 205 No stop 16 03 00 --- 10 16 33 49.7 57.2 -2.2 0.0 177 232 15 59 31 16 03 30 J1229+0203 10 17 03 47.4 54.3 -2.2 0.0 -3 232 16 03 30 16 05 30 --- 10 19 03 47.8 53.8 -2.2 0.0 117 247 16 03 31 16 05 30 NGC4418 10 19 03 50.2 56.5 -2.2 0.0 -33 247 No stop 16 09 00 --- 10 22 34 50.8 55.6 -2.1 0.0 177 274 16 05 31 16 09 00 J1229+0203 10 22 34 48.4 52.9 -2.1 0.0 -33 274 No stop 16 11 00 --- 10 24 34 48.8 52.3 -2.1 0.0 87 290 16 09 01 16 11 00 NGC4418 10 24 34 51.2 55.1 -2.1 0.0 -33 290 No stop 16 14 30 --- 10 28 05 51.9 54.1 -2.0 0.0 177 317 16 11 01 16 15 00 J1229+0203 10 28 35 49.5 51.3 -2.0 0.0 -3 317 16 15 00 16 17 00 --- 10 30 35 49.9 50.7 -2.0 0.0 117 332 16 15 01 Schedule for HART (Code Hh ) Page 3 EVN+e-MERLIN -Growing black holes or supernova factories in extremely op UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Mon 27 May 2024 Day 148 --- 16 17 00 NGC4418 10 30 35 52.3 53.4 -2.0 0.0 -33 332 No stop 16 20 30 --- 10 34 06 52.9 52.4 -1.9 0.0 177 359 16 17 01 16 20 30 J1229+0203 10 34 06 50.5 49.7 -1.9 0.0 -33 359 No stop 16 22 30 --- 10 36 06 50.8 49.1 -1.9 0.0 87 375 16 20 31 16 22 30 NGC4418 10 36 06 53.3 51.8 -1.9 0.0 -33 375 No stop 16 26 00 --- 10 39 37 53.9 50.8 -1.8 0.0 177 402 16 22 31 16 26 30 J1229+0203 10 40 07 51.5 48.0 -1.8 0.0 -3 402 16 26 30 16 28 30 --- 10 42 07 51.8 47.4 -1.8 0.0 117 417 16 26 31 16 28 30 NGC4418 10 42 07 54.4 50.0 -1.8 0.0 -33 417 No stop 16 32 00 --- 10 45 38 55.0 48.9 -1.7 0.0 177 444 16 28 31 16 32 00 J1229+0203 10 45 38 52.4 46.3 -1.7 0.0 -33 444 No stop 16 34 00 --- 10 47 38 52.7 45.7 -1.7 0.0 87 460 16 32 01 16 34 00 NGC4418 10 47 38 55.3 48.2 -1.7 0.0 -33 460 No stop 16 37 30 --- 10 51 09 55.9 47.1 -1.6 0.0 177 487 16 34 01 16 38 00 J1229+0203 10 51 39 53.4 44.4 -1.6 0.0 -3 487 16 38 00 16 40 00 --- 10 53 39 53.7 43.7 -1.6 0.0 117 502 16 38 01 16 40 00 NGC4418 10 53 39 56.3 46.2 -1.6 0.0 -33 502 No stop 16 43 30 --- 10 57 10 56.8 45.0 -1.5 0.0 177 529 16 40 01 16 43 30 J1229+0203 10 57 10 54.2 42.5 -1.6 0.0 -33 529 No stop 16 45 00 --- 10 58 40 54.4 42.0 -1.5 0.0 57 541 16 43 31 16 45 00 NGC4418 10 58 40 57.1 44.5 -1.5 0.0 -33 541 No stop 16 48 30 --- 11 02 10 57.6 43.2 -1.4 0.0 177 568 16 45 01 16 49 00 J1229+0203 11 02 41 55.0 40.6 -1.5 0.0 -3 568 16 49 00 16 50 00 --- 11 03 41 55.2 40.3 -1.4 0.0 57 576 16 49 01 16 50 00 NGC4418 11 03 41 57.9 42.6 -1.4 0.0 -33 576 No stop 16 53 30 --- 11 07 11 58.4 41.3 -1.3 0.0 177 603 16 50 01 16 53 30 J1229+0203 11 07 11 55.7 39.0 -1.4 0.0 -33 603 No stop 16 55 00 --- 11 08 42 55.9 38.5 -1.4 0.0 57 614 16 53 31 16 55 00 NGC4418 11 08 42 58.6 40.7 -1.3 0.0 -33 614 No stop 16 58 30 --- 11 12 12 59.1 39.3 -1.3 0.0 177 642 16 55 01 Schedule for HART (Code Hh ) Page 4 EVN+e-MERLIN -Growing black holes or supernova factories in extremely op UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Mon 27 May 2024 Day 148 --- 16 59 00 J1229+0203 11 12 42 56.4 37.0 -1.3 0.0 -3 642 16 59 00 17 00 00 --- 11 13 42 56.6 36.6 -1.3 0.0 57 649 16 59 01 17 00 00 NGC4418 11 13 42 59.3 38.7 -1.2 0.0 -33 649 No stop 17 03 30 --- 11 17 13 59.8 37.3 -1.2 0.0 177 676 17 00 01 17 03 30 J1229+0203 11 17 13 57.0 35.2 -1.2 0.0 -33 676 No stop 17 05 00 --- 11 18 43 57.2 34.6 -1.2 0.0 57 688 17 03 31 17 05 00 NGC4418 11 18 43 60.0 36.7 -1.2 0.0 -33 688 No stop 17 08 30 --- 11 22 14 60.5 35.2 -1.1 0.0 177 715 17 05 01 17 09 00 J1229+0203 11 22 44 57.7 33.0 -1.1 0.0 -3 715 17 09 00 17 10 00 --- 11 23 44 57.9 32.6 -1.1 0.0 57 723 17 09 01 17 10 00 NGC4418 11 23 44 60.7 34.5 -1.1 0.0 -33 723 No stop 17 13 30 --- 11 27 15 61.1 32.9 -1.0 0.0 177 750 17 10 01 17 13 30 J1229+0203 11 27 15 58.3 31.1 -1.1 0.0 -33 750 No stop 17 15 00 --- 11 28 45 58.5 30.5 -1.0 0.0 57 761 17 13 31 17 15 00 NGC4418 11 28 45 61.3 32.3 -1.0 0.0 -33 761 No stop 17 18 30 --- 11 32 15 61.7 30.6 -0.9 0.0 177 788 17 15 01 17 19 00 J1229+0203 11 32 45 58.9 28.8 -1.0 0.0 -3 788 17 19 00 17 20 00 --- 11 33 46 59.0 28.3 -0.9 0.0 57 796 17 19 01 17 20 00 NGC4418 11 33 46 61.9 29.9 -0.9 0.0 -33 796 No stop 17 23 30 --- 11 37 16 62.3 28.2 -0.8 0.0 177 823 17 20 01 17 23 30 J1229+0203 11 37 16 59.4 26.8 -0.9 0.0 -33 823 No stop 17 25 00 --- 11 38 46 59.5 26.1 -0.9 0.0 57 835 17 23 31 17 25 00 NGC4418 11 38 46 62.4 27.5 -0.8 0.0 -33 835 No stop 17 28 30 --- 11 42 17 62.8 25.8 -0.8 0.0 177 862 17 25 01 17 29 00 J1229+0203 11 42 47 59.9 24.3 -0.8 0.0 -3 862 17 29 00 17 30 00 --- 11 43 47 60.0 23.8 -0.8 0.0 57 870 17 29 01 17 30 00 NGC4418 11 43 47 62.9 25.0 -0.7 0.0 -33 870 No stop 17 33 30 --- 11 47 18 63.2 23.2 -0.7 0.0 177 897 17 30 01 17 33 30 J1229+0203 11 47 18 60.3 22.1 -0.7 0.0 -33 897 No stop 17 35 00 --- 11 48 48 60.4 21.4 -0.7 0.0 57 908 17 33 31 Schedule for HART (Code Hh ) Page 5 EVN+e-MERLIN -Growing black holes or supernova factories in extremely op UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Mon 27 May 2024 Day 148 --- 17 35 00 NGC4418 11 48 48 63.4 22.4 -0.7 0.0 -33 908 No stop 17 38 30 --- 11 52 19 63.7 20.6 -0.6 0.0 177 935 17 35 01 17 39 00 J1229+0203 11 52 49 60.7 19.5 -0.6 0.0 -3 935 17 39 00 17 40 00 --- 11 53 49 60.8 19.0 -0.6 0.0 57 943 17 39 01 17 40 00 NGC4418 11 53 49 63.8 19.8 -0.6 0.0 -33 943 No stop 17 43 30 --- 11 57 19 64.0 17.8 -0.5 0.0 177 970 17 40 01 17 43 30 J1229+0203 11 57 19 61.1 17.3 -0.6 0.0 -33 970 No stop 17 45 00 --- 11 58 50 61.2 16.5 -0.5 0.0 57 982 17 43 31 17 45 00 NGC4418 11 58 50 64.1 17.0 -0.5 0.0 -33 982 No stop 17 48 30 --- 12 02 20 64.4 15.1 -0.4 0.0 177 1009 17 45 01 17 49 00 J1229+0203 12 02 50 61.4 14.5 -0.5 0.0 -3 1009 17 49 00 17 50 00 --- 12 03 51 61.5 14.0 -0.4 0.0 57 1016 17 49 01 17 50 00 NGC4418 12 03 51 64.4 14.2 -0.4 0.0 -33 1016 No stop 17 53 30 --- 12 07 21 64.6 12.2 -0.3 0.0 177 1043 17 50 01 17 53 30 J1229+0203 12 07 21 61.6 12.2 -0.4 0.0 -33 1043 No stop 17 55 00 --- 12 08 51 61.7 11.4 -0.4 0.0 57 1055 17 53 31 17 55 00 NGC4418 12 08 51 64.7 11.4 -0.3 0.0 -33 1055 No stop 17 58 30 --- 12 12 22 64.8 9.3 -0.3 0.0 177 1082 17 55 01 17 59 00 J1229+0203 12 12 52 61.9 9.3 -0.3 0.0 -3 1082 17 59 00 18 00 00 --- 12 13 52 61.9 8.8 -0.3 0.0 57 1090 17 59 01 18 00 00 NGC4418 12 13 52 64.9 8.4 -0.2 0.0 -33 1090 No stop 18 03 30 --- 12 17 23 65.0 6.4 -0.2 0.0 177 1117 18 00 01 18 03 30 J1229+0203 12 17 23 62.0 6.9 -0.2 0.0 -33 1117 No stop 18 05 00 --- 12 18 53 62.1 6.1 -0.2 0.0 57 1128 18 03 31 18 05 00 NGC4418 12 18 53 65.0 5.5 -0.2 0.0 -33 1128 No stop 18 08 30 --- 12 22 24 65.1 3.4 -0.1 0.0 177 1156 18 05 01 18 09 00 J1229+0203 12 22 54 62.1 4.0 -0.1 0.0 -3 1156 18 09 00 18 10 00 --- 12 23 54 62.1 3.5 -0.1 0.0 57 1163 18 09 01 18 10 00 NGC4418 12 23 54 65.1 2.5 -0.1 0.0 -33 1163 No stop 18 13 30 --- 12 27 24 65.1 0.5 -0.0 0.0 177 1190 18 10 01 Schedule for HART (Code Hh ) Page 6 EVN+e-MERLIN -Growing black holes or supernova factories in extremely op UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Mon 27 May 2024 Day 148 --- 18 13 30 J1229+0203 12 27 24 62.2 1.6 -0.0 0.0 -33 1190 No stop 18 15 00 --- 12 28 55 62.2 0.8 -0.0 0.0 57 1202 18 13 31 18 15 00 NGC4418 12 28 55 65.1 359.6 0.0 0.0 -33 1202 No stop 18 18 30 --- 12 32 25 65.1 357.5 0.1 0.0 177 1229 18 15 01 18 19 00 J1229+0203 12 32 55 62.2 358.6 0.0 0.0 -3 1229 18 19 00 18 20 00 --- 12 33 55 62.2 358.1 0.1 0.0 57 1237 18 19 01 18 20 00 NGC4418 12 33 55 65.1 356.6 0.1 0.0 -33 1237 No stop 18 23 30 --- 12 37 26 65.0 354.5 0.2 0.0 177 1264 18 20 01 18 23 30 J1229+0203 12 37 26 62.1 356.2 0.1 0.0 -33 1264 No stop 18 25 00 --- 12 38 56 62.1 355.4 0.1 0.0 57 1275 18 23 31 18 25 00 NGC4418 12 38 56 65.0 353.6 0.2 0.0 -33 1275 No stop 18 28 30 --- 12 42 27 64.9 351.6 0.2 0.0 177 1302 18 25 01 18 29 00 J1229+0203 12 42 57 62.0 353.3 0.2 0.0 -3 1302 18 29 00 18 30 00 --- 12 43 57 62.0 352.8 0.2 0.0 57 1310 18 29 01 18 30 00 NGC4418 12 43 57 64.8 350.7 0.3 0.0 -33 1310 No stop 18 33 30 --- 12 47 28 64.7 348.7 0.3 0.0 177 1337 18 30 01 18 33 30 J1229+0203 12 47 28 61.9 350.9 0.3 0.0 -33 1337 No stop 18 35 00 --- 12 48 58 61.8 350.1 0.3 0.0 57 1349 18 33 31 18 35 00 NGC4418 12 48 58 64.6 347.8 0.3 0.0 -33 1349 No stop 18 38 30 --- 12 52 29 64.4 345.8 0.4 0.0 177 1376 18 35 01 18 39 00 J1229+0203 12 52 59 61.7 348.0 0.4 0.0 -3 1376 18 39 00 18 40 00 --- 12 53 59 61.6 347.5 0.4 0.0 57 1384 18 39 01 18 40 00 NGC4418 12 53 59 64.4 344.9 0.4 0.0 -33 1384 No stop 18 43 30 --- 12 57 29 64.1 343.0 0.5 0.0 177 1411 18 40 01 18 43 30 J1229+0203 12 57 29 61.4 345.7 0.5 0.0 -33 1411 No stop 18 45 00 --- 12 59 00 61.3 345.0 0.5 0.0 57 1422 18 43 31 18 45 00 NGC4418 12 59 00 64.0 342.2 0.5 0.0 -33 1422 No stop 18 48 30 --- 13 02 30 63.8 340.3 0.6 0.0 177 1449 18 45 01 18 49 00 J1229+0203 13 03 00 61.1 342.9 0.5 0.0 -3 1449 18 49 00 18 50 00 --- 13 04 00 61.0 342.4 0.6 0.0 57 1457 18 49 01 Schedule for HART (Code Hh ) Page 7 EVN+e-MERLIN -Growing black holes or supernova factories in extremely op UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Mon 27 May 2024 Day 148 --- 18 50 00 NGC4418 13 04 00 63.7 339.4 0.6 0.0 -33 1457 No stop 18 53 30 --- 13 07 31 63.4 337.6 0.7 0.0 177 1484 18 50 01 18 53 30 J1229+0203 13 07 31 60.8 340.7 0.6 0.0 -33 1484 No stop 18 55 00 --- 13 09 01 60.7 340.0 0.6 0.0 57 1496 18 53 31 18 55 00 NGC4418 13 09 01 63.2 336.8 0.7 0.0 -33 1496 No stop 18 58 30 --- 13 12 32 62.9 335.0 0.7 0.0 177 1523 18 55 01 18 59 00 J1229+0203 13 13 02 60.3 338.0 0.7 0.0 -3 1523 18 59 00 19 00 00 --- 13 14 02 60.3 337.6 0.7 0.0 57 1530 18 59 01 19 00 00 NGC4418 13 14 02 62.8 334.2 0.8 0.0 -33 1530 No stop 19 03 30 --- 13 17 33 62.4 332.5 0.8 0.0 177 1557 19 00 01 19 03 30 J1229+0203 13 17 33 59.9 335.9 0.8 0.0 -33 1557 No stop 19 05 00 --- 13 19 03 59.8 335.2 0.8 0.0 57 1569 19 03 31 19 05 00 NGC4418 13 19 03 62.3 331.8 0.8 0.0 -33 1569 No stop 19 08 30 --- 13 22 33 61.9 330.1 0.9 0.0 177 1596 19 05 01 19 09 00 J1229+0203 13 23 04 59.4 333.4 0.9 0.0 -3 1596 19 09 00 19 10 00 --- 13 24 04 59.3 333.0 0.9 0.0 57 1604 19 09 01 19 10 00 NGC4418 13 24 04 61.7 329.4 0.9 0.0 -33 1604 No stop 19 13 30 --- 13 27 34 61.3 327.7 1.0 0.0 177 1631 19 10 01 19 13 30 J1229+0203 13 27 34 58.9 331.4 1.0 0.0 -33 1631 No stop 19 15 00 --- 13 29 05 58.8 330.8 1.0 0.0 57 1642 19 13 31 19 15 00 NGC4418 13 29 05 61.1 327.1 1.0 0.0 -33 1642 No stop 19 18 30 --- 13 32 35 60.7 325.5 1.1 0.0 177 1669 19 15 01 19 19 00 J1229+0203 13 33 05 58.3 329.0 1.0 0.0 -3 1669 19 19 00 19 20 00 --- 13 34 05 58.2 328.6 1.1 0.0 57 1677 19 19 01 19 20 00 NGC4418 13 34 05 60.5 324.8 1.1 0.0 -33 1677 No stop 19 23 30 --- 13 37 36 60.0 323.3 1.2 0.0 177 1704 19 20 01 19 23 30 J1229+0203 13 37 36 57.8 327.2 1.1 0.0 -33 1704 No stop 19 25 00 --- 13 39 06 57.6 326.6 1.1 0.0 57 1716 19 23 31 19 25 00 NGC4418 13 39 06 59.8 322.7 1.2 0.0 -33 1716 No stop 19 28 30 --- 13 42 37 59.3 321.3 1.2 0.0 177 1743 19 25 01 Schedule for HART (Code Hh ) Page 8 EVN+e-MERLIN -Growing black holes or supernova factories in extremely op UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Mon 27 May 2024 Day 148 --- 19 29 00 J1229+0203 13 43 07 57.1 325.0 1.2 0.0 -3 1743 19 29 00 19 30 00 --- 13 44 07 57.0 324.6 1.2 0.0 57 1751 19 29 01 19 30 00 NGC4418 13 44 07 59.1 320.7 1.3 0.0 -33 1751 No stop 19 33 30 --- 13 47 38 58.6 319.3 1.3 0.0 177 1778 19 30 01 19 33 30 J1229+0203 13 47 38 56.5 323.2 1.3 0.0 -33 1778 No stop 19 35 00 --- 13 49 08 56.3 322.6 1.3 0.0 57 1789 19 33 31 19 35 00 NGC4418 13 49 08 58.4 318.7 1.3 0.0 -33 1789 No stop 19 38 30 --- 13 52 38 57.9 317.4 1.4 0.0 177 1816 19 35 01 19 39 00 J1229+0203 13 53 08 55.7 321.1 1.4 0.0 -3 1816 19 39 00 19 40 00 --- 13 54 09 55.6 320.8 1.4 0.0 57 1824 19 39 01 19 40 00 NGC4418 13 54 09 57.6 316.8 1.4 0.0 -33 1824 No stop 19 43 30 --- 13 57 39 57.1 315.5 1.5 0.0 177 1851 19 40 01 19 43 30 J1229+0203 13 57 39 55.1 319.5 1.5 0.0 -33 1851 No stop 19 45 00 --- 13 59 09 54.9 319.0 1.5 0.0 57 1863 19 43 31 19 45 00 NGC4418 13 59 09 56.9 315.0 1.5 0.0 -33 1863 No stop 19 48 30 --- 14 02 40 56.3 313.8 1.6 0.0 177 1890 19 45 01 19 49 00 J1229+0203 14 03 10 54.3 317.6 1.5 0.0 -3 1890 19 49 00 19 50 00 --- 14 04 10 54.1 317.3 1.6 0.0 57 1898 19 49 01 19 50 00 NGC4418 14 04 10 56.0 313.3 1.6 0.0 -33 1898 No stop 19 53 30 --- 14 07 41 55.5 312.1 1.7 0.0 177 1925 19 50 01 19 53 30 J1229+0203 14 07 41 53.6 316.1 1.6 0.0 -33 1925 No stop 19 55 00 --- 14 09 11 53.3 315.6 1.6 0.0 57 1936 19 53 31 19 55 00 NGC4418 14 09 11 55.2 311.6 1.7 0.0 -33 1936 No stop 19 58 30 --- 14 12 42 54.6 310.5 1.7 0.0 177 1963 19 55 01 19 59 00 J1229+0203 14 13 12 52.7 314.3 1.7 0.0 -3 1963 19 59 00 20 00 00 --- 14 14 12 52.5 314.0 1.7 0.0 57 1971 19 59 01 20 00 00 NGC4418 14 14 12 54.4 310.0 1.8 0.0 -33 1971 No stop 20 03 30 --- 14 17 42 53.7 308.9 1.8 0.0 177 1998 20 00 01 20 03 30 J1229+0203 14 17 42 52.0 312.9 1.8 0.0 -33 1998 No stop 20 05 00 --- 14 19 13 51.7 312.5 1.8 0.0 57 2010 20 03 31 Schedule for HART (Code Hh ) Page 9 EVN+e-MERLIN -Growing black holes or supernova factories in extremely op UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Mon 27 May 2024 Day 148 --- 20 05 00 NGC4418 14 19 13 53.5 308.5 1.9 0.0 -33 2010 No stop 20 08 30 --- 14 22 43 52.9 307.5 1.9 0.0 177 2037 20 05 01 20 09 00 J1229+0203 14 23 13 51.1 311.3 1.9 0.0 -3 2037 20 09 00 20 10 00 --- 14 24 14 50.9 311.0 1.9 0.0 57 2044 20 09 01 20 10 00 NGC4418 14 24 14 52.6 307.0 1.9 0.0 -33 2044 No stop 20 13 30 --- 14 27 44 52.0 306.0 2.0 0.0 177 2071 20 10 01 20 13 30 J1229+0203 14 27 44 50.3 310.0 2.0 0.0 -33 2071 No stop 20 15 00 --- 14 29 14 50.0 309.5 2.0 0.0 57 2083 20 13 31 20 15 00 NGC4418 14 29 14 51.7 305.6 2.0 0.0 -33 2083 No stop 20 18 30 --- 14 32 45 51.0 304.7 2.1 0.0 177 2110 20 15 01 20 19 00 J1229+0203 14 33 15 49.3 308.4 2.0 0.0 -3 2110 20 19 00 20 20 00 --- 14 34 15 49.1 308.2 2.1 0.0 57 2118 20 19 01 20 20 00 NGC4418 14 34 15 50.8 304.3 2.1 0.0 -33 2118 No stop 20 23 30 --- 14 37 46 50.1 303.4 2.2 0.0 177 2145 20 20 01 20 23 30 J1229+0203 14 37 46 48.5 307.2 2.1 0.0 -33 2145 No stop 20 25 00 --- 14 39 16 48.2 306.8 2.1 0.0 57 2156 20 23 31 20 25 00 NGC4418 14 39 16 49.8 303.0 2.2 0.0 -33 2156 No stop 20 28 30 --- 14 42 47 49.2 302.1 2.2 0.0 177 2183 20 25 01 20 29 00 J1229+0203 14 43 17 47.5 305.8 2.2 0.0 -3 2183 20 29 00 20 30 00 --- 14 44 17 47.3 305.6 2.2 0.0 57 2191 20 29 01 20 30 00 NGC4418 14 44 17 48.9 301.7 2.3 0.0 -33 2191 No stop 20 33 30 --- 14 47 47 48.2 300.9 2.3 0.0 177 2218 20 30 01 20 33 30 J1229+0203 14 47 47 46.7 304.7 2.3 0.0 -33 2218 No stop 20 35 00 --- 14 49 18 46.4 304.3 2.3 0.0 57 2230 20 33 31 20 35 00 NGC4418 14 49 18 47.9 300.5 2.4 0.0 -33 2230 No stop 20 38 30 --- 14 52 48 47.2 299.7 2.4 0.0 177 2257 20 35 01 20 39 00 J1229+0203 14 53 18 45.7 303.4 2.4 0.0 -3 2257 20 39 00 20 40 00 --- 14 54 18 45.5 303.1 2.4 0.0 57 2265 20 39 01 20 40 00 NGC4418 14 54 18 46.9 299.4 2.4 0.0 -33 2265 No stop 20 43 30 --- 14 57 49 46.2 298.6 2.5 0.0 177 2292 20 40 01 Schedule for HART (Code Hh ) Page 10 EVN+e-MERLIN -Growing black holes or supernova factories in extremely op UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Mon 27 May 2024 Day 148 --- 20 43 30 J1229+0203 14 57 49 44.8 302.3 2.5 0.0 -33 2292 No stop 20 45 00 --- 14 59 19 44.5 302.0 2.5 0.0 57 2303 20 43 31 20 45 00 NGC4418 14 59 19 45.9 298.2 2.5 0.0 -33 2303 No stop 20 48 30 --- 15 02 50 45.2 297.5 2.6 0.0 177 2330 20 45 01 20 49 00 J1229+0203 15 03 20 43.8 301.1 2.5 0.0 -3 2330 20 49 00 20 50 00 --- 15 04 20 43.6 300.9 2.6 0.0 57 2338 20 49 01 20 50 00 NGC4418 15 04 20 44.9 297.2 2.6 0.0 -33 2338 No stop 20 53 30 --- 15 07 51 44.2 296.4 2.7 0.0 177 2365 20 50 01 20 53 30 J1229+0203 15 07 51 42.9 300.1 2.6 0.0 -33 2365 No stop 20 55 00 --- 15 09 21 42.6 299.8 2.6 0.0 57 2377 20 53 31 20 55 00 NGC4418 15 09 21 43.9 296.1 2.7 0.0 -33 2377 No stop 20 58 30 --- 15 12 52 43.2 295.4 2.7 0.0 177 2404 20 55 01 20 59 00 J1229+0203 15 13 22 41.8 298.9 2.7 0.0 -3 2404 20 59 00 21 00 00 --- 15 14 22 41.6 298.7 2.7 0.0 57 2411 20 59 01 21 00 00 NGC4418 15 14 22 42.9 295.1 2.8 0.0 -33 2411 No stop 21 03 30 --- 15 17 52 42.2 294.4 2.8 0.0 177 2439 21 00 01 21 03 30 J1229+0203 15 17 52 40.9 298.0 2.8 0.0 -33 2439 No stop 21 05 00 --- 15 19 23 40.6 297.7 2.8 0.0 57 2450 21 03 31 21 05 00 NGC4418 15 19 23 41.9 294.1 2.9 0.0 -33 2450 No stop 21 08 30 --- 15 22 53 41.2 293.5 2.9 0.0 177 2477 21 05 01 21 09 00 J1229+0203 15 23 23 39.8 296.9 2.9 0.0 -3 2477 21 09 00 21 10 00 --- 15 24 23 39.6 296.7 2.9 0.0 57 2485 21 09 01 21 10 00 NGC4418 15 24 23 40.9 293.2 2.9 0.0 -33 2485 No stop 21 13 30 --- 15 27 54 40.1 292.5 3.0 0.0 177 2512 21 10 01 21 13 30 J1229+0203 15 27 54 38.9 296.1 3.0 0.0 -33 2512 No stop 21 15 00 --- 15 29 24 38.6 295.8 3.0 0.0 57 2524 21 13 31 21 15 00 NGC4418 15 29 24 39.8 292.3 3.0 0.0 -33 2524 No stop 21 18 30 --- 15 32 55 39.1 291.6 3.1 0.0 177 2551 21 15 01 21 19 00 J1229+0203 15 33 25 37.8 295.0 3.1 0.0 -3 2551 21 19 00 21 20 00 --- 15 34 25 37.6 294.9 3.1 0.0 57 2558 21 19 01 Schedule for HART (Code Hh ) Page 11 EVN+e-MERLIN -Growing black holes or supernova factories in extremely op UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Mon 27 May 2024 Day 148 --- 21 20 00 NGC4418 15 34 25 38.8 291.4 3.1 0.0 -33 2558 No stop 21 23 30 --- 15 37 56 38.0 290.8 3.2 0.0 177 2585 21 20 01 21 23 30 J1229+0203 15 37 56 36.9 294.2 3.1 0.0 -33 2585 No stop 21 25 00 --- 15 39 26 36.6 294.0 3.2 0.0 57 2597 21 23 31 21 25 00 NGC4418 15 39 26 37.7 290.5 3.2 0.0 -33 2597 No stop 21 28 30 --- 15 42 56 37.0 289.9 3.2 0.0 177 2624 21 25 01 21 29 00 J1229+0203 15 43 27 35.7 293.3 3.2 0.0 -3 2624 21 29 00 21 30 00 --- 15 44 27 35.5 293.1 3.2 0.0 57 2632 21 29 01 21 30 00 NGC4418 15 44 27 36.7 289.7 3.3 0.0 -33 2632 No stop 21 33 30 --- 15 47 57 35.9 289.1 3.3 0.0 177 2659 21 30 01 21 33 30 J1229+0203 15 47 57 34.8 292.5 3.3 0.0 -33 2659 No stop 21 35 00 --- 15 49 28 34.5 292.2 3.3 0.0 57 2670 21 33 31 21 35 00 NGC4418 15 49 28 35.6 288.9 3.4 0.0 -33 2670 No stop 21 38 30 --- 15 52 58 34.8 288.3 3.4 0.0 177 2697 21 35 01 21 39 00 J1229+0203 15 53 28 33.6 291.6 3.4 0.0 -3 2697 21 39 00 21 40 00 --- 15 54 28 33.4 291.4 3.4 0.0 57 2705 21 39 01 21 40 00 NGC4418 15 54 28 34.5 288.1 3.4 0.0 -33 2705 No stop 21 43 30 --- 15 57 59 33.8 287.5 3.5 0.0 177 2732 21 40 01 21 43 30 J1229+0203 15 57 59 32.7 290.8 3.5 0.0 -33 2732 No stop 21 45 00 --- 15 59 29 32.4 290.6 3.5 0.0 57 2744 21 43 31 21 45 00 NGC4418 15 59 29 33.4 287.3 3.5 0.0 -33 2744 No stop 21 48 30 --- 16 03 00 32.7 286.7 3.6 0.0 177 2771 21 45 01 21 49 00 J1229+0203 16 03 30 31.5 290.0 3.6 0.0 -3 2771 21 49 00 21 50 00 --- 16 04 30 31.3 289.8 3.6 0.0 57 2779 21 49 01 21 50 00 NGC4418 16 04 30 32.4 286.5 3.6 0.0 -33 2779 No stop 21 53 30 --- 16 08 01 31.6 286.0 3.7 0.0 177 2806 21 50 01 21 53 30 J1229+0203 16 08 01 30.6 289.3 3.6 0.0 -33 2806 No stop 21 55 00 --- 16 09 31 30.3 289.0 3.7 0.0 57 2817 21 53 31 21 55 00 NGC4418 16 09 31 31.3 285.8 3.7 0.0 -33 2817 No stop 21 58 30 --- 16 13 01 30.5 285.3 3.7 0.0 177 2844 21 55 01 Schedule for HART (Code Hh ) Page 12 EVN+e-MERLIN -Growing black holes or supernova factories in extremely op UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Mon 27 May 2024 Day 148 --- 21 59 00 J1229+0203 16 13 31 29.4 288.4 3.7 0.0 -3 2844 21 59 00 22 00 00 --- 16 14 32 29.2 288.3 3.7 0.0 57 2852 21 59 01 22 00 00 NGC4418 16 14 32 30.2 285.1 3.8 0.0 -33 2852 No stop 22 03 30 --- 16 18 02 29.4 284.6 3.8 0.0 177 2879 22 00 01 22 03 30 J1229+0203 16 18 02 28.4 287.8 3.8 0.0 -33 2879 No stop 22 05 00 --- 16 19 32 28.1 287.5 3.8 0.0 57 2891 22 03 31 22 05 00 NGC4418 16 19 32 29.1 284.3 3.9 0.0 -33 2891 No stop 22 08 30 --- 16 23 03 28.3 283.9 3.9 0.0 177 2918 22 05 01 22 09 00 J1229+0203 16 23 33 27.3 287.0 3.9 0.0 -3 2918 22 09 00 22 10 00 --- 16 24 33 27.0 286.8 3.9 0.0 57 2925 22 09 01 22 10 00 NGC4418 16 24 33 28.0 283.6 3.9 0.0 -33 2925 No stop 22 13 30 --- 16 28 04 27.2 283.2 4.0 0.0 177 2953 22 10 01 22 13 30 J1229+0203 16 28 04 26.3 286.3 4.0 0.0 -33 2953 No stop 22 15 00 --- 16 29 34 26.0 286.1 4.0 0.0 57 2964 22 13 31 22 15 00 NGC4418 16 29 34 26.9 283.0 4.0 0.0 -33 2964 No stop 22 18 30 --- 16 33 05 26.1 282.5 4.1 0.0 177 2991 22 15 01 22 19 00 J1229+0203 16 33 35 25.1 285.6 4.1 0.0 -3 2991 22 19 00 22 20 00 --- 16 34 35 24.9 285.4 4.1 0.0 57 2999 22 19 01 22 20 00 NGC4418 16 34 35 25.8 282.3 4.1 0.0 -33 2999 No stop 22 23 30 --- 16 38 05 25.0 281.8 4.2 0.0 177 3026 22 20 01 22 23 30 J1229+0203 16 38 05 24.1 284.9 4.1 0.0 -33 3026 No stop 22 25 00 --- 16 39 36 23.8 284.7 4.2 0.0 57 3038 22 23 31 22 25 00 NGC4418 16 39 36 24.7 281.6 4.2 0.0 -33 3038 No stop 22 28 30 --- 16 43 06 23.9 281.2 4.2 0.0 177 3065 22 25 01 22 29 00 J1229+0203 16 43 36 22.9 284.2 4.2 0.0 -3 3065 22 29 00 22 30 00 --- 16 44 37 22.7 284.1 4.2 0.0 57 3072 22 29 01 22 30 00 NGC4418 16 44 37 23.6 281.0 4.3 0.0 -33 3072 No stop 22 33 30 --- 16 48 07 22.8 280.5 4.3 0.0 177 3099 22 30 01 22 33 30 J1229+0203 16 48 07 21.9 283.6 4.3 0.0 -33 3099 No stop 22 35 00 --- 16 49 37 21.6 283.4 4.3 0.0 57 3111 22 33 31 Schedule for HART (Code Hh ) Page 13 EVN+e-MERLIN -Growing black holes or supernova factories in extremely op UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Mon 27 May 2024 Day 148 --- 22 35 00 NGC4418 16 49 37 22.5 280.4 4.4 0.0 -33 3111 No stop 22 38 30 --- 16 53 08 21.7 279.9 4.4 0.0 177 3138 22 35 01 22 39 00 J1229+0203 16 53 38 20.7 282.9 4.4 0.0 -3 3138 22 39 00 22 40 00 --- 16 54 38 20.5 282.8 4.4 0.0 57 3146 22 39 01 22 40 00 NGC4418 16 54 38 21.4 279.7 4.4 0.0 -33 3146 No stop 22 43 30 --- 16 58 09 20.6 279.3 4.5 0.0 177 3173 22 40 01 22 43 30 J1229+0203 16 58 09 19.7 282.3 4.5 0.0 -33 3173 No stop 22 45 00 --- 16 59 39 19.4 282.1 4.5 0.0 57 3184 22 43 31 22 45 00 NGC4418 16 59 39 20.3 279.1 4.5 0.0 -33 3184 No stop 22 48 30 --- 17 03 10 19.5 278.7 4.6 0.0 177 3211 22 45 01 22 49 00 J1229+0203 17 03 40 18.5 281.6 4.6 0.0 -3 3211 22 49 00 22 50 00 --- 17 04 40 18.3 281.5 4.6 0.0 57 3219 22 49 01 22 50 00 NGC4418 17 04 40 19.2 278.5 4.6 0.0 -33 3219 No stop 22 53 30 --- 17 08 10 18.4 278.1 4.7 0.0 177 3246 22 50 01 22 53 30 J1229+0203 17 08 10 17.5 281.1 4.6 0.0 -33 3246 No stop 22 55 00 --- 17 09 41 17.2 280.9 4.7 0.0 57 3258 22 53 31 22 55 00 NGC4418 17 09 41 18.0 277.9 4.7 0.0 -33 3258 No stop 22 58 30 --- 17 13 11 17.3 277.5 4.8 0.0 177 3285 22 55 01 22 59 00 J1229+0203 17 13 41 16.3 280.4 4.7 0.0 -3 3285 22 59 00 23 00 00 --- 17 14 41 16.1 280.3 4.7 0.0 57 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 Matching groups in /home/guest/rmc/SCHED/sched11.6/catalogs/freq_RDBE.dat: hh18cm Values confirmed by E-mail Jonathan Quick 20140219 (CR) ****** Only 122.49 of 256.00 MHz total bandwidth is within the IFs in the setup file before any FREQ or DOPPLER shifts. Setup group: 5 Station: HART 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= 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 1510.00 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: 8 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= 116.49 116.49 116.49 116.49 180.49 180.49 180.49 180.49 Bandwd= 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 Matching frequency sets: 8 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