COVER INFORMATION Station: ONSALA85 (Code O8 ) Experiment: VLBI follow-up of the first (of many) OH Megamasers detected with Aperti Exp. Code: em154 Schedule Version: 2.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: John McKean Address: ASTRON Postbus 2 7990 AA, Dwingeloo the Netherlands Phone: +31 521 595 780 EMAIL: mckean@astron.nl Fax: +31 521 595 101 Phone during observation: +31 624 328 991 Observing mode: 21cm 512-4-2 Notes: out-station 64MHz channel over redshifted 1612 & 1665/7 lines 4th BBC per pol put in gap between those lines Ur,QUASARs,T6,Mc low-end cut-offs will exclude some channels Schedule for ONSALA85 (Code O8 ) Page 2 VLBI follow-up of the first (of many) OH Megamasers detected with Aperti UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Tue 1 Jun 2021 Day 152 --- Next scan frequencies: 1351.84 1351.84 1351.84 1351.84 1370.59 1370.59 1370.59 1370.59 1389.09 1389.09 1389.09 1389.09 1434.34 1434.34 1434.34 1434.34 Next BBC frequencies: 621.84 621.84 621.84 621.84 640.59 640.59 640.59 640.59 659.09 659.09 659.09 659.09 704.34 704.34 704.34 704.34 Next scan bandwidths: 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 11 30 00 J1102+5941 04 58 22 46.0 46.8 -6.1 0.0 0 0 11 30 00 11 31 30 =1059+599 04 59 52 46.2 47.0 -6.1 0.0 90 6 11 30 01 11 31 30 IRAS10597+59 04 59 52 45.8 47.5 -6.1 0.0 -11 6 No stop 11 35 00 --- 05 03 23 46.2 48.0 -6.0 0.0 199 19 11 31 31 11 35 30 J1102+5941 05 03 53 46.6 47.4 -6.0 0.0 19 19 11 35 30 11 37 00 =1059+599 05 05 23 46.7 47.6 -6.0 0.0 90 25 11 35 31 11 37 00 IRAS10597+59 05 05 23 46.4 48.2 -6.0 0.0 -11 25 No stop 11 40 30 --- 05 08 54 46.8 48.6 -5.9 0.0 199 39 11 37 01 11 40 30 J1102+5941 05 08 54 47.1 48.0 -5.9 0.0 -11 39 No stop 11 42 00 =1059+599 05 10 24 47.2 48.2 -5.9 0.0 79 44 11 40 31 11 42 00 IRAS10597+59 05 10 24 46.9 48.8 -5.9 0.0 -11 44 No stop 11 45 30 --- 05 13 55 47.3 49.2 -5.8 0.0 199 58 11 42 01 11 46 00 J1102+5941 05 14 25 47.6 48.6 -5.8 0.0 19 58 11 46 00 11 47 30 =1059+599 05 15 55 47.8 48.8 -5.8 0.0 90 64 11 46 01 11 47 30 IRAS10597+59 05 15 55 47.5 49.4 -5.8 0.0 -11 64 No stop 11 51 00 --- 05 19 25 47.8 49.8 -5.7 0.0 199 77 11 47 31 11 51 00 J1102+5941 05 19 25 48.1 49.2 -5.7 0.0 -11 77 No stop 11 52 30 =1059+599 05 20 56 48.3 49.4 -5.7 0.0 79 83 11 51 01 11 52 30 IRAS10597+59 05 20 56 48.0 50.0 -5.7 0.0 -11 83 No stop 11 56 00 --- 05 24 26 48.3 50.4 -5.7 0.0 199 97 11 52 31 11 56 30 J1102+5941 05 24 56 48.7 49.8 -5.7 0.0 19 97 11 56 30 11 58 00 =1059+599 05 26 27 48.9 50.0 -5.6 0.0 90 102 11 56 31 11 58 00 IRAS10597+59 05 26 27 48.6 50.6 -5.6 0.0 -11 102 No stop 12 01 30 --- 05 29 57 48.9 51.0 -5.6 0.0 199 116 11 58 01 12 01 30 J1102+5941 05 29 57 49.2 50.4 -5.6 0.0 -11 116 No stop 12 03 00 =1059+599 05 31 27 49.4 50.5 -5.5 0.0 79 122 12 01 31 Schedule for ONSALA85 (Code O8 ) Page 3 VLBI follow-up of the first (of many) OH Megamasers detected with Aperti UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Tue 1 Jun 2021 Day 152 --- 12 03 00 IRAS10597+59 05 31 27 49.1 51.2 -5.5 0.0 -11 122 No stop 12 06 30 --- 05 34 58 49.4 51.6 -5.5 0.0 199 135 12 03 01 12 07 00 J1102+5941 05 35 28 49.8 51.0 -5.5 0.0 19 135 12 07 00 12 08 30 =1059+599 05 36 58 50.0 51.2 -5.5 0.0 90 141 12 07 01 12 08 30 IRAS10597+59 05 36 58 49.7 51.8 -5.5 0.0 -11 141 No stop 12 12 00 --- 05 40 29 50.0 52.2 -5.4 0.0 199 155 12 08 31 12 12 00 J1102+5941 05 40 29 50.3 51.5 -5.4 0.0 -11 155 No stop 12 13 30 =1059+599 05 41 59 50.5 51.7 -5.4 0.0 79 160 12 12 01 12 13 30 IRAS10597+59 05 41 59 50.2 52.4 -5.4 0.0 -11 160 No stop 12 17 00 --- 05 45 30 50.6 52.8 -5.3 0.0 199 174 12 13 31 12 17 30 J1102+5941 05 46 00 50.9 52.1 -5.3 0.0 19 174 12 17 30 12 19 00 =1059+599 05 47 30 51.1 52.3 -5.3 0.0 90 180 12 17 31 12 19 00 IRAS10597+59 05 47 30 50.8 53.0 -5.3 0.0 -11 180 No stop 12 22 30 --- 05 51 01 51.2 53.4 -5.2 0.0 199 193 12 19 01 12 22 30 J1102+5941 05 51 01 51.4 52.7 -5.2 0.0 -11 193 No stop 12 24 00 =1059+599 05 52 31 51.6 52.9 -5.2 0.0 79 199 12 22 31 12 24 00 IRAS10597+59 05 52 31 51.3 53.5 -5.2 0.0 -11 199 No stop 12 27 30 --- 05 56 01 51.7 53.9 -5.1 0.0 199 213 12 24 01 12 28 00 J1102+5941 05 56 32 52.0 53.3 -5.1 0.0 19 213 12 28 00 12 29 30 =1059+599 05 58 02 52.2 53.4 -5.1 0.0 90 218 12 28 01 12 29 30 IRAS10597+59 05 58 02 51.9 54.1 -5.1 0.0 -11 218 No stop 12 33 00 --- 06 01 32 52.3 54.5 -5.0 0.0 199 232 12 29 31 12 33 00 J1102+5941 06 01 32 52.6 53.8 -5.0 0.0 -11 232 No stop 12 34 30 =1059+599 06 03 03 52.7 54.0 -5.0 0.0 79 238 12 33 01 12 34 30 IRAS10597+59 06 03 03 52.5 54.7 -5.0 0.0 -11 238 No stop 12 38 00 --- 06 06 33 52.9 55.1 -5.0 0.0 199 251 12 34 31 12 38 30 J1102+5941 06 07 03 53.2 54.4 -4.9 0.0 19 251 12 38 30 12 40 00 =1059+599 06 08 33 53.3 54.6 -4.9 0.0 90 257 12 38 31 12 40 00 IRAS10597+59 06 08 33 53.1 55.3 -4.9 0.0 -11 257 No stop 12 43 30 --- 06 12 04 53.5 55.7 -4.9 0.0 199 271 12 40 01 Schedule for ONSALA85 (Code O8 ) Page 4 VLBI follow-up of the first (of many) OH Megamasers detected with Aperti UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Tue 1 Jun 2021 Day 152 --- 12 43 30 J1102+5941 06 12 04 53.7 54.9 -4.9 0.0 -11 271 No stop 12 45 00 =1059+599 06 13 34 53.9 55.1 -4.8 0.0 79 276 12 43 31 12 45 00 IRAS10597+59 06 13 34 53.6 55.8 -4.8 0.0 -11 276 No stop 12 48 30 --- 06 17 05 54.0 56.2 -4.8 0.0 199 290 12 45 01 12 49 00 J1102+5941 06 17 35 54.3 55.5 -4.8 0.0 19 290 12 49 00 12 50 30 =1059+599 06 19 05 54.5 55.7 -4.7 0.0 90 296 12 49 01 12 50 30 IRAS10597+59 06 19 05 54.3 56.4 -4.7 0.0 -11 296 No stop 12 54 00 --- 06 22 36 54.7 56.8 -4.7 0.0 199 309 12 50 31 12 54 00 J1102+5941 06 22 36 54.9 56.0 -4.7 0.0 -11 309 No stop 12 55 30 =1059+599 06 24 06 55.1 56.2 -4.7 0.0 79 315 12 54 01 13 00 30 4C39.25 06 29 07 55.8 102.9 -3.0 0.0 206 315 13 00 30 13 05 30 --- 06 34 08 56.4 104.2 -2.9 0.0 300 334 13 00 31 13 10 30 J1102+5941 06 39 08 56.8 57.7 -4.4 0.0 206 334 13 10 30 13 15 30 =1059+599 06 44 09 57.3 58.2 -4.3 0.0 300 354 13 10 31 13 15 30 IRAS10597+59 06 44 09 57.1 59.1 -4.3 0.0 -11 354 No stop 13 19 00 --- 06 47 40 57.5 59.4 -4.3 0.0 199 367 13 15 31 13 19 30 J1102+5941 06 48 10 57.8 58.6 -4.3 0.0 19 367 13 19 30 13 21 00 =1059+599 06 49 40 58.0 58.8 -4.2 0.0 90 373 13 19 31 13 21 00 IRAS10597+59 06 49 40 57.8 59.6 -4.2 0.0 -11 373 No stop 13 24 30 --- 06 53 11 58.2 60.0 -4.2 0.0 199 386 13 21 01 13 24 30 J1102+5941 06 53 11 58.4 59.1 -4.2 0.0 -11 386 No stop 13 26 00 =1059+599 06 54 41 58.6 59.3 -4.2 0.0 79 392 13 24 31 13 26 00 IRAS10597+59 06 54 41 58.3 60.2 -4.2 0.0 -11 392 No stop 13 29 30 --- 06 58 12 58.7 60.5 -4.1 0.0 199 406 13 26 01 13 30 00 J1102+5941 06 58 42 59.0 59.7 -4.1 0.0 19 406 13 30 00 13 31 30 =1059+599 07 00 12 59.2 59.8 -4.1 0.0 90 412 13 30 01 13 31 30 IRAS10597+59 07 00 12 59.0 60.7 -4.1 0.0 -11 412 No stop 13 35 00 --- 07 03 43 59.4 61.1 -4.0 0.0 199 425 13 31 31 13 35 00 J1102+5941 07 03 43 59.6 60.1 -4.0 0.0 -11 425 No stop 13 36 30 =1059+599 07 05 13 59.8 60.3 -4.0 0.0 79 431 13 35 01 Schedule for ONSALA85 (Code O8 ) Page 5 VLBI follow-up of the first (of many) OH Megamasers detected with Aperti UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Tue 1 Jun 2021 Day 152 --- 13 36 30 IRAS10597+59 07 05 13 59.6 61.2 -4.0 0.0 -11 431 No stop 13 40 00 --- 07 08 43 60.0 61.6 -3.9 0.0 199 444 13 36 31 13 40 30 J1102+5941 07 09 13 60.2 60.7 -3.9 0.0 19 444 13 40 30 13 42 00 =1059+599 07 10 44 60.4 60.8 -3.9 0.0 90 450 13 40 31 13 42 00 IRAS10597+59 07 10 44 60.2 61.8 -3.9 0.0 -11 450 No stop 13 45 30 --- 07 14 14 60.6 62.1 -3.8 0.0 199 464 13 42 01 13 45 30 J1102+5941 07 14 14 60.8 61.1 -3.8 0.0 -11 464 No stop 13 47 00 =1059+599 07 15 44 61.0 61.3 -3.8 0.0 79 470 13 45 31 13 47 00 IRAS10597+59 07 15 44 60.8 62.3 -3.8 0.0 -11 470 No stop 13 50 30 --- 07 19 15 61.2 62.6 -3.7 0.0 199 483 13 47 01 13 51 00 J1102+5941 07 19 45 61.5 61.7 -3.7 0.0 19 483 13 51 00 13 52 30 =1059+599 07 21 15 61.7 61.8 -3.7 0.0 90 489 13 51 01 13 52 30 IRAS10597+59 07 21 15 61.5 62.8 -3.7 0.0 -11 489 No stop 13 56 00 --- 07 24 46 61.9 63.1 -3.7 0.0 199 502 13 52 31 13 56 00 J1102+5941 07 24 46 62.1 62.1 -3.7 0.0 -11 502 No stop 13 57 30 =1059+599 07 26 16 62.3 62.3 -3.6 0.0 79 508 13 56 01 13 57 30 IRAS10597+59 07 26 16 62.1 63.3 -3.6 0.0 -11 508 No stop 14 01 00 --- 07 29 47 62.5 63.6 -3.6 0.0 199 522 13 57 31 14 01 30 J1102+5941 07 30 17 62.7 62.6 -3.6 0.0 19 522 14 01 30 14 03 00 =1059+599 07 31 47 62.9 62.8 -3.5 0.0 90 528 14 01 31 14 03 00 IRAS10597+59 07 31 47 62.7 63.8 -3.5 0.0 -11 528 No stop 14 06 30 --- 07 35 18 63.2 64.1 -3.5 0.0 199 541 14 03 01 14 06 30 J1102+5941 07 35 18 63.3 63.1 -3.5 0.0 -11 541 No stop 14 08 00 =1059+599 07 36 48 63.5 63.2 -3.5 0.0 79 547 14 06 31 14 08 00 IRAS10597+59 07 36 48 63.4 64.3 -3.5 0.0 -11 547 No stop 14 11 30 --- 07 40 19 63.8 64.6 -3.4 0.0 199 560 14 08 01 14 12 00 J1102+5941 07 40 49 64.0 63.6 -3.4 0.0 19 560 14 12 00 14 13 30 =1059+599 07 42 19 64.2 63.7 -3.4 0.0 90 566 14 12 01 14 13 30 IRAS10597+59 07 42 19 64.0 64.8 -3.4 0.0 -11 566 No stop 14 17 00 --- 07 45 49 64.5 65.1 -3.3 0.0 199 580 14 13 31 Schedule for ONSALA85 (Code O8 ) Page 6 VLBI follow-up of the first (of many) OH Megamasers detected with Aperti UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Tue 1 Jun 2021 Day 152 --- 14 17 00 J1102+5941 07 45 49 64.6 64.0 -3.3 0.0 -11 580 No stop 14 18 30 =1059+599 07 47 20 64.8 64.1 -3.3 0.0 79 585 14 17 01 14 18 30 IRAS10597+59 07 47 20 64.6 65.3 -3.3 0.0 -11 585 No stop 14 22 00 --- 07 50 50 65.1 65.6 -3.2 0.0 199 599 14 18 31 14 22 30 J1102+5941 07 51 20 65.3 64.5 -3.2 0.0 19 599 14 22 30 14 24 00 =1059+599 07 52 51 65.5 64.6 -3.2 0.0 90 605 14 22 31 14 24 00 IRAS10597+59 07 52 51 65.3 65.8 -3.2 0.0 -11 605 No stop 14 27 30 --- 07 56 21 65.7 66.1 -3.1 0.0 199 618 14 24 01 14 27 30 J1102+5941 07 56 21 65.9 64.9 -3.1 0.0 -11 618 No stop 14 29 00 =1059+599 07 57 51 66.1 65.0 -3.1 0.0 79 624 14 27 31 14 29 00 IRAS10597+59 07 57 51 65.9 66.2 -3.1 0.0 -11 624 No stop 14 32 30 --- 08 01 22 66.4 66.5 -3.0 0.0 199 638 14 29 01 14 33 00 J1102+5941 08 01 52 66.6 65.3 -3.0 0.0 19 638 14 33 00 14 34 30 =1059+599 08 03 22 66.8 65.5 -3.0 0.0 90 643 14 33 01 14 34 30 IRAS10597+59 08 03 22 66.6 66.7 -3.0 0.0 -11 643 No stop 14 38 00 --- 08 06 53 67.0 67.0 -3.0 0.0 199 657 14 34 31 14 38 00 J1102+5941 08 06 53 67.2 65.7 -3.0 0.0 -11 657 No stop 14 39 30 =1059+599 08 08 23 67.4 65.9 -2.9 0.0 79 663 14 38 01 14 39 30 IRAS10597+59 08 08 23 67.2 67.1 -2.9 0.0 -11 663 No stop 14 43 00 --- 08 11 54 67.7 67.4 -2.9 0.0 199 676 14 39 31 14 43 30 J1102+5941 08 12 24 67.9 66.2 -2.9 0.0 19 676 14 43 30 14 45 00 =1059+599 08 13 54 68.0 66.3 -2.8 0.0 90 682 14 43 31 14 45 00 IRAS10597+59 08 13 54 67.9 67.6 -2.8 0.0 -11 682 No stop 14 48 30 --- 08 17 25 68.4 67.9 -2.8 0.0 199 696 14 45 01 14 48 30 J1102+5941 08 17 25 68.5 66.6 -2.8 0.0 -11 696 No stop 14 50 00 =1059+599 08 18 55 68.7 66.7 -2.8 0.0 79 701 14 48 31 14 50 00 IRAS10597+59 08 18 55 68.5 68.0 -2.8 0.0 -11 701 No stop 14 53 30 --- 08 22 25 69.0 68.3 -2.7 0.0 199 715 14 50 01 14 54 00 J1102+5941 08 22 55 69.2 67.0 -2.7 0.0 19 715 14 54 00 14 55 30 =1059+599 08 24 26 69.4 67.1 -2.7 0.0 90 721 14 54 01 Schedule for ONSALA85 (Code O8 ) Page 7 VLBI follow-up of the first (of many) OH Megamasers detected with Aperti UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Tue 1 Jun 2021 Day 152 --- 14 55 30 IRAS10597+59 08 24 26 69.2 68.5 -2.7 0.0 -11 721 No stop 14 59 00 --- 08 27 56 69.7 68.8 -2.6 0.0 199 734 14 55 31 14 59 00 J1102+5941 08 27 56 69.8 67.3 -2.6 0.0 -11 734 No stop 15 00 30 =1059+599 08 29 27 70.0 67.4 -2.6 0.0 79 740 14 59 01 15 00 30 IRAS10597+59 08 29 27 69.9 68.9 -2.6 0.0 -11 740 No stop 15 04 00 --- 08 32 57 70.3 69.1 -2.5 0.0 199 754 15 00 31 15 04 30 J1102+5941 08 33 27 70.5 67.7 -2.5 0.0 19 754 15 04 30 15 06 00 =1059+599 08 34 57 70.7 67.8 -2.5 0.0 90 759 15 04 31 15 06 00 IRAS10597+59 08 34 57 70.6 69.3 -2.5 0.0 -11 759 No stop 15 09 30 --- 08 38 28 71.0 69.6 -2.4 0.0 199 773 15 06 01 15 09 30 J1102+5941 08 38 28 71.1 68.0 -2.4 0.0 -11 773 No stop 15 11 00 =1059+599 08 39 58 71.3 68.1 -2.4 0.0 79 779 15 09 31 15 11 00 IRAS10597+59 08 39 58 71.2 69.7 -2.4 0.0 -11 779 No stop 15 14 30 --- 08 43 29 71.6 69.9 -2.3 0.0 199 792 15 11 01 15 15 00 J1102+5941 08 43 59 71.8 68.3 -2.3 0.0 19 792 15 15 00 15 16 30 =1059+599 08 45 29 72.0 68.4 -2.3 0.0 90 798 15 15 01 15 16 30 IRAS10597+59 08 45 29 71.9 70.1 -2.3 0.0 -11 798 No stop 15 20 00 --- 08 49 00 72.3 70.3 -2.3 0.0 199 812 15 16 31 15 20 00 J1102+5941 08 49 00 72.4 68.6 -2.3 0.0 -11 812 No stop 15 21 30 =1059+599 08 50 30 72.6 68.7 -2.2 0.0 79 817 15 20 01 15 21 30 IRAS10597+59 08 50 30 72.5 70.4 -2.2 0.0 -11 817 No stop 15 25 00 --- 08 54 01 73.0 70.6 -2.2 0.0 199 831 15 21 31 15 25 30 J1102+5941 08 54 31 73.1 68.9 -2.2 0.0 19 831 15 25 30 15 27 00 =1059+599 08 56 01 73.3 69.0 -2.1 0.0 90 837 15 25 31 15 27 00 IRAS10597+59 08 56 01 73.2 70.8 -2.1 0.0 -11 837 No stop 15 30 30 --- 08 59 31 73.7 71.0 -2.1 0.0 199 850 15 27 01 15 30 30 J1102+5941 08 59 31 73.7 69.2 -2.1 0.0 -11 850 No stop 15 32 00 =1059+599 09 01 02 73.9 69.2 -2.0 0.0 79 856 15 30 31 15 32 00 IRAS10597+59 09 01 02 73.9 71.1 -2.1 0.0 -11 856 No stop 15 35 30 --- 09 04 32 74.3 71.3 -2.0 0.0 199 870 15 32 01 Schedule for ONSALA85 (Code O8 ) Page 8 VLBI follow-up of the first (of many) OH Megamasers detected with Aperti UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Tue 1 Jun 2021 Day 152 --- 15 36 00 J1102+5941 09 05 02 74.4 69.4 -2.0 0.0 19 870 15 36 00 15 37 30 =1059+599 09 06 33 74.6 69.5 -2.0 0.0 90 875 15 36 01 15 37 30 IRAS10597+59 09 06 33 74.6 71.4 -2.0 0.0 -11 875 No stop 15 41 00 --- 09 10 03 75.0 71.6 -1.9 0.0 199 889 15 37 31 15 41 00 J1102+5941 09 10 03 75.1 69.6 -1.9 0.0 -11 889 No stop 15 42 30 =1059+599 09 11 33 75.3 69.7 -1.9 0.0 79 895 15 41 01 15 42 30 IRAS10597+59 09 11 33 75.2 71.7 -1.9 0.0 -11 895 No stop 15 46 00 --- 09 15 04 75.7 71.8 -1.8 0.0 199 908 15 42 31 15 46 30 J1102+5941 09 15 34 75.8 69.8 -1.8 0.0 19 908 15 46 30 15 48 00 =1059+599 09 17 04 76.0 69.8 -1.8 0.0 90 914 15 46 31 15 48 00 IRAS10597+59 09 17 04 75.9 71.9 -1.8 0.0 -11 914 No stop 15 51 30 --- 09 20 35 76.4 72.1 -1.7 0.0 199 927 15 48 01 15 51 30 J1102+5941 09 20 35 76.4 69.9 -1.7 0.0 -11 927 No stop 15 53 00 =1059+599 09 22 05 76.6 69.9 -1.7 0.0 79 933 15 51 31 15 53 00 IRAS10597+59 09 22 05 76.6 72.1 -1.7 0.0 -11 933 No stop 15 56 30 --- 09 25 36 77.0 72.2 -1.6 0.0 199 947 15 53 01 15 57 00 J1102+5941 09 26 06 77.1 70.0 -1.6 0.0 19 947 15 57 00 15 58 30 =1059+599 09 27 36 77.3 70.0 -1.6 0.0 90 953 15 57 01 15 58 30 IRAS10597+59 09 27 36 77.3 72.3 -1.6 0.0 -11 953 No stop 16 02 00 --- 09 31 07 77.7 72.4 -1.5 0.0 199 966 15 58 31 16 02 00 J1102+5941 09 31 07 77.7 70.0 -1.5 0.0 -11 966 No stop 16 03 30 =1059+599 09 32 37 77.9 70.0 -1.5 0.0 79 972 16 02 01 16 03 30 IRAS10597+59 09 32 37 77.9 72.4 -1.5 0.0 -11 972 No stop 16 07 00 --- 09 36 07 78.4 72.5 -1.5 0.0 199 985 16 03 31 16 07 30 J1102+5941 09 36 38 78.4 69.9 -1.5 0.0 19 985 16 07 30 16 09 00 =1059+599 09 38 08 78.6 69.9 -1.4 0.0 90 991 16 07 31 16 09 00 IRAS10597+59 09 38 08 78.6 72.5 -1.4 0.0 -11 991 No stop 16 12 30 --- 09 41 38 79.1 72.5 -1.4 0.0 199 1005 16 09 01 16 12 30 J1102+5941 09 41 38 79.1 69.8 -1.4 0.0 -11 1005 No stop 16 14 00 =1059+599 09 43 09 79.3 69.8 -1.3 0.0 79 1011 16 12 31 Schedule for ONSALA85 (Code O8 ) Page 9 VLBI follow-up of the first (of many) OH Megamasers detected with Aperti UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Tue 1 Jun 2021 Day 152 --- 16 14 00 IRAS10597+59 09 43 09 79.3 72.5 -1.3 0.0 -11 1011 No stop 16 17 30 --- 09 46 39 79.7 72.5 -1.3 0.0 199 1024 16 14 01 16 18 00 J1102+5941 09 47 09 79.8 69.6 -1.3 0.0 19 1024 16 18 00 16 19 30 =1059+599 09 48 40 80.0 69.5 -1.3 0.0 90 1030 16 18 01 16 19 30 IRAS10597+59 09 48 40 80.0 72.5 -1.3 0.0 -11 1030 No stop 16 23 00 --- 09 52 10 80.4 72.4 -1.2 0.0 199 1043 16 19 31 16 23 00 J1102+5941 09 52 10 80.4 69.3 -1.2 0.0 -11 1043 No stop 16 24 30 =1059+599 09 53 40 80.6 69.2 -1.2 0.0 79 1049 16 23 01 16 24 30 IRAS10597+59 09 53 40 80.6 72.3 -1.2 0.0 -11 1049 No stop 16 28 00 --- 09 57 11 81.1 72.2 -1.1 0.0 199 1063 16 24 31 16 28 30 J1102+5941 09 57 41 81.1 68.9 -1.1 0.0 19 1063 16 28 30 16 30 00 =1059+599 09 59 11 81.3 68.7 -1.1 0.0 90 1069 16 28 31 16 30 00 IRAS10597+59 09 59 11 81.3 72.1 -1.1 0.0 -11 1069 No stop 16 33 30 --- 10 02 42 81.8 71.8 -1.0 0.0 199 1082 16 30 01 16 33 30 J1102+5941 10 02 42 81.7 68.3 -1.0 0.0 -11 1082 No stop 16 35 00 =1059+599 10 04 12 81.9 68.1 -1.0 0.0 79 1088 16 33 31 16 35 00 IRAS10597+59 10 04 12 82.0 71.7 -1.0 0.0 -11 1088 No stop 16 38 30 --- 10 07 43 82.4 71.3 -0.9 0.0 199 1101 16 35 01 16 39 00 J1102+5941 10 08 13 82.4 67.4 -0.9 0.0 19 1101 16 39 00 16 40 30 =1059+599 10 09 43 82.6 67.2 -0.9 0.0 90 1107 16 39 01 16 40 30 IRAS10597+59 10 09 43 82.7 71.1 -0.9 0.0 -11 1107 No stop 16 44 00 --- 10 13 14 83.1 70.6 -0.8 0.0 199 1121 16 40 31 16 44 00 J1102+5941 10 13 14 83.0 66.4 -0.8 0.0 -11 1121 No stop 16 45 30 =1059+599 10 14 44 83.2 66.1 -0.8 0.0 79 1127 16 44 01 16 45 30 IRAS10597+59 10 14 44 83.3 70.3 -0.8 0.0 -11 1127 No stop 16 49 00 --- 10 18 14 83.7 69.7 -0.8 0.0 199 1140 16 45 31 16 49 30 J1102+5941 10 18 44 83.7 64.9 -0.8 0.0 19 1140 16 49 30 16 51 00 =1059+599 10 20 15 83.9 64.5 -0.7 0.0 90 1146 16 49 31 16 51 00 IRAS10597+59 10 20 15 84.0 69.2 -0.7 0.0 -11 1146 No stop 16 54 30 --- 10 23 45 84.4 68.2 -0.7 0.0 199 1159 16 51 01 Schedule for ONSALA85 (Code O8 ) Page 10 VLBI follow-up of the first (of many) OH Megamasers detected with Aperti UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Tue 1 Jun 2021 Day 152 --- 16 54 30 J1102+5941 10 23 45 84.3 63.2 -0.7 0.0 -11 1159 No stop 16 56 00 =1059+599 10 25 16 84.5 62.6 -0.6 0.0 79 1165 16 54 31 16 56 00 IRAS10597+59 10 25 16 84.6 67.8 -0.6 0.0 -11 1165 No stop 16 59 30 --- 10 28 46 85.1 66.5 -0.6 0.0 199 1179 16 56 01 17 00 00 J1102+5941 10 29 16 85.0 60.6 -0.6 0.0 19 1179 17 00 00 17 01 30 =1059+599 10 30 46 85.1 59.8 -0.6 0.0 90 1184 17 00 01 17 01 30 IRAS10597+59 10 30 46 85.3 65.6 -0.6 0.0 -11 1184 No stop 17 05 00 --- 10 34 17 85.7 63.7 -0.5 0.0 199 1198 17 01 31 17 05 00 J1102+5941 10 34 17 85.5 57.5 -0.5 0.0 -11 1198 No stop 17 06 30 =1059+599 10 35 47 85.7 56.4 -0.5 0.0 79 1204 17 05 01 17 06 30 IRAS10597+59 10 35 47 85.9 62.8 -0.5 0.0 -11 1204 No stop 17 10 00 --- 10 39 18 86.3 60.2 -0.4 0.0 199 1217 17 06 31 17 10 30 J1102+5941 10 39 48 86.2 52.8 -0.4 0.0 19 1217 17 10 30 17 12 00 =1059+599 10 41 18 86.3 51.2 -0.4 0.0 90 1223 17 10 31 17 12 00 IRAS10597+59 10 41 18 86.6 58.4 -0.4 0.0 -11 1223 No stop 17 15 30 --- 10 44 49 87.0 54.5 -0.3 0.0 199 1237 17 12 01 17 15 30 J1102+5941 10 44 49 86.7 46.9 -0.3 0.0 -11 1237 No stop 17 17 00 =1059+599 10 46 19 86.8 44.7 -0.3 0.0 79 1242 17 15 31 17 17 00 IRAS10597+59 10 46 19 87.1 52.5 -0.3 0.0 -11 1242 No stop 17 20 30 --- 10 49 50 87.5 46.7 -0.2 0.0 199 1256 17 17 01 17 21 00 J1102+5941 10 50 20 87.2 37.8 -0.2 0.0 19 1256 17 21 00 17 22 30 =1059+599 10 51 50 87.3 34.7 -0.2 0.0 90 1262 17 21 01 17 22 30 IRAS10597+59 10 51 50 87.7 42.6 -0.2 0.0 -11 1262 No stop 17 26 00 --- 10 55 20 88.0 33.5 -0.1 0.0 199 1275 17 22 31 17 26 00 J1102+5941 10 55 20 87.5 26.4 -0.1 0.0 -11 1275 No stop 17 27 30 =1059+599 10 56 51 87.6 22.4 -0.1 0.0 79 1281 17 26 01 17 27 30 IRAS10597+59 10 56 51 88.1 28.8 -0.1 0.0 -11 1281 No stop 17 31 00 --- 11 00 21 88.3 15.9 -0.1 0.0 199 1295 17 27 31 17 31 30 J1102+5941 11 00 51 87.8 10.3 -0.1 0.0 19 1295 17 31 30 17 33 00 =1059+599 11 02 22 87.8 5.4 -0.0 0.0 90 1300 17 31 31 Schedule for ONSALA85 (Code O8 ) Page 11 VLBI follow-up of the first (of many) OH Megamasers detected with Aperti UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Tue 1 Jun 2021 Day 152 --- 17 33 00 IRAS10597+59 11 02 22 88.3 7.5 -0.0 0.0 -11 1300 No stop 17 36 30 --- 11 05 52 88.3 352.1 0.0 0.0 199 1314 17 33 01 17 36 30 J1102+5941 11 05 52 87.8 353.8 0.0 0.0 -11 1314 No stop 17 38 00 =1059+599 11 07 22 87.8 348.9 0.1 0.0 79 1320 17 36 31 17 43 00 3C345 11 12 23 36.2 70.9 -5.5 0.0 5 1320 17 43 00 17 48 00 --- 11 17 24 36.8 71.8 -5.4 0.0 300 1339 17 43 01 17 53 00 J1102+5941 11 22 25 86.7 314.2 0.3 0.0 -3 1339 17 53 00 17 58 00 =1059+599 11 27 26 86.2 308.0 0.4 0.0 297 1358 17 53 01 17 58 00 IRAS10597+59 11 27 26 86.5 301.0 0.4 0.0 -11 1358 No stop 18 01 30 --- 11 30 56 86.1 298.2 0.4 0.0 199 1372 17 58 01 18 02 00 J1102+5941 11 31 26 85.8 304.3 0.5 0.0 19 1372 18 02 00 18 03 30 =1059+599 11 32 57 85.6 303.1 0.5 0.0 90 1378 18 02 01 18 03 30 IRAS10597+59 11 32 57 85.8 296.8 0.5 0.0 -11 1378 No stop 18 07 00 --- 11 36 27 85.4 294.9 0.5 0.0 199 1391 18 03 31 18 07 00 J1102+5941 11 36 27 85.2 300.7 0.5 0.0 -11 1391 No stop 18 08 30 =1059+599 11 37 57 85.1 299.8 0.6 0.0 79 1397 18 07 01 18 08 30 IRAS10597+59 11 37 57 85.2 294.1 0.6 0.0 -11 1397 No stop 18 12 00 --- 11 41 28 84.8 292.7 0.6 0.0 199 1411 18 08 31 18 12 30 J1102+5941 11 41 58 84.6 297.8 0.6 0.0 19 1411 18 12 30 18 14 00 =1059+599 11 43 28 84.4 297.1 0.7 0.0 90 1416 18 12 31 18 14 00 IRAS10597+59 11 43 28 84.6 292.0 0.7 0.0 -11 1416 No stop 18 17 30 --- 11 46 59 84.1 291.0 0.7 0.0 199 1430 18 14 01 18 17 30 J1102+5941 11 46 59 84.0 295.8 0.7 0.0 -11 1430 No stop 18 19 00 =1059+599 11 48 29 83.8 295.3 0.7 0.0 79 1436 18 17 31 18 19 00 IRAS10597+59 11 48 29 83.9 290.7 0.7 0.0 -11 1436 No stop 18 22 30 --- 11 52 00 83.5 289.9 0.8 0.0 199 1449 18 19 01 18 23 00 J1102+5941 11 52 30 83.3 294.1 0.8 0.0 19 1449 18 23 00 18 24 30 =1059+599 11 54 00 83.1 293.8 0.8 0.0 90 1455 18 23 01 18 24 30 IRAS10597+59 11 54 00 83.2 289.6 0.8 0.0 -11 1455 No stop 18 28 00 --- 11 57 31 82.8 289.0 0.9 0.0 199 1469 18 24 31 Schedule for ONSALA85 (Code O8 ) Page 12 VLBI follow-up of the first (of many) OH Megamasers detected with Aperti UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Tue 1 Jun 2021 Day 152 --- 18 28 00 J1102+5941 11 57 31 82.7 293.0 0.9 0.0 -11 1469 No stop 18 29 30 =1059+599 11 59 01 82.5 292.7 0.9 0.0 79 1474 18 28 01 18 29 30 IRAS10597+59 11 59 01 82.6 288.8 0.9 0.0 -11 1474 No stop 18 33 00 --- 12 02 31 82.1 288.4 1.0 0.0 199 1488 18 29 31 18 33 30 J1102+5941 12 03 02 82.0 292.0 1.0 0.0 19 1488 18 33 30 18 35 00 =1059+599 12 04 32 81.8 291.8 1.0 0.0 90 1494 18 33 31 18 35 00 IRAS10597+59 12 04 32 81.9 288.3 1.0 0.0 -11 1494 No stop 18 38 30 --- 12 08 02 81.4 288.0 1.1 0.0 199 1507 18 35 01 18 38 30 J1102+5941 12 08 02 81.4 291.4 1.1 0.0 -11 1507 No stop 18 40 00 =1059+599 12 09 33 81.2 291.2 1.1 0.0 79 1513 18 38 31 18 40 00 IRAS10597+59 12 09 33 81.2 287.9 1.1 0.0 -11 1513 No stop 18 43 30 --- 12 13 03 80.8 287.7 1.1 0.0 199 1527 18 40 01 18 44 00 J1102+5941 12 13 33 80.7 290.9 1.2 0.0 19 1527 18 44 00 18 45 30 =1059+599 12 15 04 80.5 290.7 1.2 0.0 90 1532 18 44 01 18 45 30 IRAS10597+59 12 15 04 80.5 287.6 1.2 0.0 -11 1532 No stop 18 49 00 --- 12 18 34 80.1 287.5 1.2 0.0 199 1546 18 45 31 18 49 00 J1102+5941 12 18 34 80.0 290.5 1.2 0.0 -11 1546 No stop 18 50 30 =1059+599 12 20 04 79.9 290.4 1.3 0.0 79 1552 18 49 01 18 50 30 IRAS10597+59 12 20 04 79.9 287.5 1.3 0.0 -11 1552 No stop 18 54 00 --- 12 23 35 79.4 287.5 1.3 0.0 199 1565 18 50 31 18 54 30 J1102+5941 12 24 05 79.4 290.2 1.3 0.0 19 1565 18 54 30 18 56 00 =1059+599 12 25 35 79.2 290.2 1.4 0.0 90 1571 18 54 31 18 56 00 IRAS10597+59 12 25 35 79.2 287.5 1.4 0.0 -11 1571 No stop 18 59 30 --- 12 29 06 78.7 287.5 1.4 0.0 199 1584 18 56 01 18 59 30 J1102+5941 12 29 06 78.7 290.1 1.4 0.0 -11 1584 No stop 19 01 00 =1059+599 12 30 36 78.5 290.1 1.4 0.0 79 1590 18 59 31 19 01 00 IRAS10597+59 12 30 36 78.5 287.5 1.4 0.0 -11 1590 No stop 19 04 30 --- 12 34 07 78.1 287.5 1.5 0.0 199 1604 19 01 01 19 05 00 J1102+5941 12 34 37 78.0 290.0 1.5 0.0 19 1604 19 05 00 19 06 30 =1059+599 12 36 07 77.8 290.0 1.5 0.0 90 1610 19 05 01 Schedule for ONSALA85 (Code O8 ) Page 13 VLBI follow-up of the first (of many) OH Megamasers detected with Aperti UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Tue 1 Jun 2021 Day 152 --- 19 06 30 IRAS10597+59 12 36 07 77.8 287.6 1.5 0.0 -11 1610 No stop 19 10 00 --- 12 39 38 77.4 287.7 1.6 0.0 199 1623 19 06 31 19 10 00 J1102+5941 12 39 38 77.4 290.0 1.6 0.0 -11 1623 No stop 19 11 30 =1059+599 12 41 08 77.2 290.0 1.6 0.0 79 1629 19 10 01 19 11 30 IRAS10597+59 12 41 08 77.2 287.7 1.6 0.0 -11 1629 No stop 19 15 00 --- 12 44 38 76.7 287.8 1.7 0.0 199 1642 19 11 31 19 15 30 J1102+5941 12 45 08 76.7 290.1 1.7 0.0 19 1642 19 15 30 19 17 00 =1059+599 12 46 39 76.5 290.1 1.7 0.0 90 1648 19 15 31 19 17 00 IRAS10597+59 12 46 39 76.5 287.9 1.7 0.0 -11 1648 No stop 19 20 30 --- 12 50 09 76.0 288.0 1.8 0.0 199 1662 19 17 01 19 20 30 J1102+5941 12 50 09 76.1 290.2 1.8 0.0 -11 1662 No stop 19 22 00 =1059+599 12 51 40 75.9 290.2 1.8 0.0 79 1668 19 20 31 19 22 00 IRAS10597+59 12 51 40 75.8 288.1 1.8 0.0 -11 1668 No stop 19 25 30 --- 12 55 10 75.4 288.3 1.9 0.0 199 1681 19 22 01 19 26 00 J1102+5941 12 55 40 75.4 290.3 1.9 0.0 19 1681 19 26 00 19 27 30 =1059+599 12 57 10 75.2 290.4 1.9 0.0 90 1687 19 26 01 19 27 30 IRAS10597+59 12 57 10 75.1 288.4 1.9 0.0 -11 1687 No stop 19 31 00 --- 13 00 41 74.7 288.6 1.9 0.0 199 1700 19 27 31 19 31 00 J1102+5941 13 00 41 74.7 290.5 1.9 0.0 -11 1700 No stop 19 32 30 =1059+599 13 02 11 74.5 290.6 2.0 0.0 79 1706 19 31 01 19 32 30 IRAS10597+59 13 02 11 74.5 288.6 2.0 0.0 -11 1706 No stop 19 36 00 --- 13 05 42 74.0 288.8 2.0 0.0 199 1720 19 32 31 19 36 30 J1102+5941 13 06 12 74.0 290.7 2.0 0.0 19 1720 19 36 30 19 38 00 =1059+599 13 07 42 73.8 290.8 2.1 0.0 90 1726 19 36 31 19 38 00 IRAS10597+59 13 07 42 73.8 289.0 2.1 0.0 -11 1726 No stop 19 41 30 --- 13 11 13 73.3 289.2 2.1 0.0 199 1739 19 38 01 19 41 30 J1102+5941 13 11 13 73.4 291.0 2.1 0.0 -11 1739 No stop 19 43 00 =1059+599 13 12 43 73.2 291.0 2.1 0.0 79 1745 19 41 31 19 43 00 IRAS10597+59 13 12 43 73.1 289.3 2.1 0.0 -11 1745 No stop 19 46 30 --- 13 16 14 72.7 289.5 2.2 0.0 199 1758 19 43 01 Schedule for ONSALA85 (Code O8 ) Page 14 VLBI follow-up of the first (of many) OH Megamasers detected with Aperti UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Tue 1 Jun 2021 Day 152 --- 19 47 00 J1102+5941 13 16 44 72.7 291.2 2.2 0.0 19 1758 19 47 00 19 48 30 =1059+599 13 18 14 72.5 291.3 2.2 0.0 90 1764 19 47 01 19 48 30 IRAS10597+59 13 18 14 72.4 289.6 2.2 0.0 -11 1764 No stop 19 52 00 --- 13 21 44 72.0 289.9 2.3 0.0 199 1778 19 48 31 19 52 00 J1102+5941 13 21 44 72.1 291.5 2.3 0.0 -11 1778 No stop 19 53 30 =1059+599 13 23 15 71.9 291.6 2.3 0.0 79 1784 19 52 01 19 53 30 IRAS10597+59 13 23 15 71.8 290.0 2.3 0.0 -11 1784 No stop 19 57 00 --- 13 26 45 71.4 290.2 2.4 0.0 199 1797 19 53 31 19 57 30 J1102+5941 13 27 15 71.4 291.8 2.4 0.0 19 1797 19 57 30 19 59 00 =1059+599 13 28 46 71.2 291.9 2.4 0.0 90 1803 19 57 31 19 59 00 IRAS10597+59 13 28 46 71.1 290.4 2.4 0.0 -11 1803 No stop 20 02 30 --- 13 32 16 70.7 290.6 2.5 0.0 199 1816 19 59 01 20 02 30 J1102+5941 13 32 16 70.8 292.2 2.5 0.0 -11 1816 No stop 20 04 00 =1059+599 13 33 46 70.6 292.3 2.5 0.0 79 1822 20 02 31 20 09 00 3C345 13 38 47 55.6 100.5 -3.1 0.0 5 1822 20 09 00 20 14 00 --- 13 43 48 56.3 101.8 -3.0 0.0 300 1841 20 09 01 20 19 00 J1102+5941 13 48 49 68.7 293.3 2.7 0.0 -3 1841 20 19 00 20 24 00 =1059+599 13 53 50 68.1 293.7 2.8 0.0 297 1861 20 19 01 20 24 00 IRAS10597+59 13 53 50 68.0 292.4 2.8 0.0 -11 1861 No stop 20 27 30 --- 13 57 20 67.5 292.7 2.9 0.0 199 1874 20 24 01 20 28 00 J1102+5941 13 57 50 67.6 294.0 2.9 0.0 19 1874 20 28 00 20 29 30 =1059+599 13 59 21 67.4 294.1 2.9 0.0 90 1880 20 28 01 20 29 30 IRAS10597+59 13 59 21 67.3 292.8 2.9 0.0 -11 1880 No stop 20 33 00 --- 14 02 51 66.8 293.1 3.0 0.0 199 1894 20 29 31 20 33 00 J1102+5941 14 02 51 67.0 294.4 3.0 0.0 -11 1894 No stop 20 34 30 =1059+599 14 04 21 66.8 294.5 3.0 0.0 79 1899 20 33 01 20 34 30 IRAS10597+59 14 04 21 66.7 293.3 3.0 0.0 -11 1899 No stop 20 38 00 --- 14 07 52 66.2 293.6 3.1 0.0 199 1913 20 34 31 20 38 30 J1102+5941 14 08 22 66.3 294.8 3.1 0.0 19 1913 20 38 30 20 40 00 =1059+599 14 09 52 66.1 295.0 3.1 0.0 90 1919 20 38 31 Schedule for ONSALA85 (Code O8 ) Page 15 VLBI follow-up of the first (of many) OH Megamasers detected with Aperti UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Tue 1 Jun 2021 Day 152 --- 20 40 00 IRAS10597+59 14 09 52 66.0 293.7 3.1 0.0 -11 1919 No stop 20 43 30 --- 14 13 23 65.5 294.1 3.2 0.0 199 1932 20 40 01 20 43 30 J1102+5941 14 13 23 65.7 295.3 3.2 0.0 -11 1932 No stop 20 45 00 =1059+599 14 14 53 65.5 295.4 3.2 0.0 79 1938 20 43 31 20 45 00 IRAS10597+59 14 14 53 65.4 294.2 3.2 0.0 -11 1938 No stop 20 48 30 --- 14 18 24 64.9 294.5 3.2 0.0 199 1952 20 45 01 20 49 00 J1102+5941 14 18 54 65.0 295.7 3.2 0.0 19 1952 20 49 00 20 50 30 =1059+599 14 20 24 64.8 295.8 3.3 0.0 90 1957 20 49 01 20 50 30 IRAS10597+59 14 20 24 64.7 294.7 3.3 0.0 -11 1957 No stop 20 54 00 --- 14 23 55 64.3 295.0 3.3 0.0 199 1971 20 50 31 20 54 00 J1102+5941 14 23 55 64.4 296.2 3.3 0.0 -11 1971 No stop 20 55 30 =1059+599 14 25 25 64.2 296.3 3.4 0.0 79 1977 20 54 01 20 55 30 IRAS10597+59 14 25 25 64.1 295.2 3.4 0.0 -11 1977 No stop 20 59 00 --- 14 28 55 63.6 295.5 3.4 0.0 199 1990 20 55 31 20 59 30 J1102+5941 14 29 26 63.7 296.6 3.4 0.0 19 1990 20 59 30 21 01 00 =1059+599 14 30 56 63.6 296.8 3.4 0.0 90 1996 20 59 31 21 01 00 IRAS10597+59 14 30 56 63.4 295.7 3.4 0.0 -11 1996 No stop 21 04 30 --- 14 34 26 63.0 296.0 3.5 0.0 199 2010 21 01 01 21 04 30 J1102+5941 14 34 26 63.1 297.1 3.5 0.0 -11 2010 No stop 21 06 00 =1059+599 14 35 57 63.0 297.2 3.5 0.0 79 2015 21 04 31 21 06 00 IRAS10597+59 14 35 57 62.8 296.1 3.5 0.0 -11 2015 No stop 21 09 30 --- 14 39 27 62.4 296.5 3.6 0.0 199 2029 21 06 01 21 10 00 J1102+5941 14 39 57 62.5 297.6 3.6 0.0 19 2029 21 10 00 21 11 30 =1059+599 14 41 28 62.3 297.7 3.6 0.0 90 2035 21 10 01 21 11 30 IRAS10597+59 14 41 28 62.1 296.7 3.6 0.0 -11 2035 No stop 21 15 00 --- 14 44 58 61.7 297.0 3.7 0.0 199 2048 21 11 31 21 15 00 J1102+5941 14 44 58 61.9 298.0 3.7 0.0 -11 2048 No stop 21 16 30 =1059+599 14 46 28 61.7 298.2 3.7 0.0 79 2054 21 15 01 21 16 30 IRAS10597+59 14 46 28 61.5 297.2 3.7 0.0 -11 2054 No stop 21 20 00 --- 14 49 59 61.1 297.5 3.8 0.0 199 2068 21 16 31 Schedule for ONSALA85 (Code O8 ) Page 16 VLBI follow-up of the first (of many) OH Megamasers detected with Aperti UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Tue 1 Jun 2021 Day 152 --- 21 20 30 J1102+5941 14 50 29 61.2 298.5 3.8 0.0 19 2068 21 20 30 21 22 00 =1059+599 14 51 59 61.0 298.7 3.8 0.0 90 2073 21 20 31 21 22 00 IRAS10597+59 14 51 59 60.9 297.7 3.8 0.0 -11 2073 No stop 21 25 30 --- 14 55 30 60.5 298.0 3.9 0.0 199 2087 21 22 01 21 25 30 J1102+5941 14 55 30 60.6 299.0 3.9 0.0 -11 2087 No stop 21 27 00 =1059+599 14 57 00 60.5 299.2 3.9 0.0 79 2093 21 25 31 21 27 00 IRAS10597+59 14 57 00 60.3 298.2 3.9 0.0 -11 2093 No stop 21 30 30 --- 15 00 31 59.9 298.5 3.9 0.0 199 2106 21 27 01 21 31 00 J1102+5941 15 01 01 60.0 299.5 4.0 0.0 19 2106 21 31 00 21 32 30 =1059+599 15 02 31 59.8 299.7 4.0 0.0 90 2112 21 31 01 21 32 30 IRAS10597+59 15 02 31 59.6 298.7 4.0 0.0 -11 2112 No stop 21 36 00 --- 15 06 02 59.2 299.1 4.0 0.0 199 2126 21 32 31 21 36 00 J1102+5941 15 06 02 59.4 300.0 4.0 0.0 -11 2126 No stop 21 37 30 =1059+599 15 07 32 59.2 300.2 4.1 0.0 79 2131 21 36 01 21 37 30 IRAS10597+59 15 07 32 59.0 299.2 4.1 0.0 -11 2131 No stop 21 41 00 --- 15 11 02 58.6 299.6 4.1 0.0 199 2145 21 37 31 21 41 30 J1102+5941 15 11 32 58.8 300.6 4.1 0.0 19 2145 21 41 30 21 43 00 =1059+599 15 13 03 58.6 300.7 4.2 0.0 90 2151 21 41 31 21 43 00 IRAS10597+59 15 13 03 58.4 299.8 4.1 0.0 -11 2151 No stop 21 46 30 --- 15 16 33 58.0 300.2 4.2 0.0 199 2164 21 43 01 21 46 30 J1102+5941 15 16 33 58.2 301.1 4.2 0.0 -11 2164 No stop 21 48 00 =1059+599 15 18 03 58.0 301.2 4.2 0.0 79 2170 21 46 31 21 48 00 IRAS10597+59 15 18 03 57.8 300.3 4.2 0.0 -11 2170 No stop 21 51 30 --- 15 21 34 57.4 300.7 4.3 0.0 199 2183 21 48 01 21 52 00 J1102+5941 15 22 04 57.5 301.6 4.3 0.0 19 2183 21 52 00 21 53 30 =1059+599 15 23 34 57.4 301.7 4.3 0.0 90 2189 21 52 01 21 53 30 IRAS10597+59 15 23 34 57.2 300.9 4.3 0.0 -11 2189 No stop 21 57 00 --- 15 27 05 56.8 301.3 4.4 0.0 199 2203 21 53 31 21 57 00 J1102+5941 15 27 05 57.0 302.1 4.4 0.0 -11 2203 No stop 21 58 30 =1059+599 15 28 35 56.8 302.3 4.4 0.0 79 2209 21 57 01 Schedule for ONSALA85 (Code O8 ) Page 17 VLBI follow-up of the first (of many) OH Megamasers detected with Aperti UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Tue 1 Jun 2021 Day 152 --- 21 58 30 IRAS10597+59 15 28 35 56.6 301.4 4.4 0.0 -11 2209 No stop 22 02 00 --- 15 32 06 56.2 301.8 4.5 0.0 199 2222 21 58 31 22 02 30 J1102+5941 15 32 36 56.3 302.7 4.5 0.0 19 2222 22 02 30 22 04 00 =1059+599 15 34 06 56.2 302.8 4.5 0.0 90 2228 22 02 31 22 04 00 IRAS10597+59 15 34 06 55.9 302.0 4.5 0.0 -11 2228 No stop 22 07 30 --- 15 37 37 55.5 302.4 4.6 0.0 199 2241 22 04 01 22 07 30 J1102+5941 15 37 37 55.8 303.2 4.6 0.0 -11 2241 No stop 22 09 00 =1059+599 15 39 07 55.6 303.3 4.6 0.0 79 2247 22 07 31 22 09 00 IRAS10597+59 15 39 07 55.4 302.5 4.6 0.0 -11 2247 No stop 22 12 30 --- 15 42 38 55.0 302.9 4.6 0.0 199 2261 22 09 01 22 13 00 J1102+5941 15 43 08 55.2 303.7 4.7 0.0 19 2261 22 13 00 22 14 30 =1059+599 15 44 38 55.0 303.9 4.7 0.0 90 2267 22 13 01 22 14 30 IRAS10597+59 15 44 38 54.8 303.1 4.7 0.0 -11 2267 No stop 22 18 00 --- 15 48 08 54.4 303.5 4.7 0.0 199 2280 22 14 31 22 18 00 J1102+5941 15 48 08 54.6 304.3 4.7 0.0 -11 2280 No stop 22 19 30 =1059+599 15 49 39 54.4 304.4 4.8 0.0 79 2286 22 18 01 22 19 30 IRAS10597+59 15 49 39 54.2 303.6 4.8 0.0 -11 2286 No stop 22 23 00 --- 15 53 09 53.8 304.0 4.8 0.0 199 2299 22 19 31 22 23 30 J1102+5941 15 53 39 54.0 304.8 4.8 0.0 19 2299 22 23 30 22 25 00 =1059+599 15 55 10 53.8 305.0 4.9 0.0 90 2305 22 23 31 22 25 00 IRAS10597+59 15 55 10 53.6 304.2 4.9 0.0 -11 2305 No stop 22 28 30 --- 15 58 40 53.2 304.6 4.9 0.0 199 2319 22 25 01 22 28 30 J1102+5941 15 58 40 53.4 305.4 4.9 0.0 -11 2319 No stop 22 30 00 =1059+599 16 00 10 53.3 305.5 4.9 0.0 79 2325 22 28 31 22 30 00 IRAS10597+59 16 00 10 53.0 304.8 4.9 0.0 -11 2325 No stop 22 33 30 --- 16 03 41 52.6 305.2 5.0 0.0 199 2338 22 30 01 22 34 00 J1102+5941 16 04 11 52.8 305.9 5.0 0.0 19 2338 22 34 00 22 35 30 =1059+599 16 05 41 52.7 306.1 5.0 0.0 90 2344 22 34 01 22 35 30 IRAS10597+59 16 05 41 52.4 305.4 5.0 0.0 -11 2344 No stop 22 39 00 --- 16 09 12 52.0 305.8 5.1 0.0 199 2357 22 35 31 Schedule for ONSALA85 (Code O8 ) Page 18 VLBI follow-up of the first (of many) OH Megamasers detected with Aperti UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Tue 1 Jun 2021 Day 152 --- 22 39 00 J1102+5941 16 09 12 52.3 306.5 5.1 0.0 -11 2357 No stop 22 40 30 =1059+599 16 10 42 52.1 306.6 5.1 0.0 79 2363 22 39 01 22 40 30 IRAS10597+59 16 10 42 51.9 305.9 5.1 0.0 -11 2363 No stop 22 44 00 --- 16 14 13 51.5 306.3 5.2 0.0 199 2377 22 40 31 22 44 30 J1102+5941 16 14 43 51.7 307.1 5.2 0.0 19 2377 22 44 30 22 46 00 =1059+599 16 16 13 51.5 307.2 5.2 0.0 90 2383 22 44 31 22 46 00 IRAS10597+59 16 16 13 51.3 306.5 5.2 0.0 -11 2383 No stop 22 49 30 --- 16 19 44 50.9 306.9 5.3 0.0 199 2396 22 46 01 22 49 30 J1102+5941 16 19 44 51.2 307.6 5.3 0.0 -11 2396 No stop 22 51 00 =1059+599 16 21 14 51.0 307.8 5.3 0.0 79 2402 22 49 31 22 51 00 IRAS10597+59 16 21 14 50.7 307.1 5.3 0.0 -11 2402 No stop 22 54 30 --- 16 24 44 50.3 307.5 5.3 0.0 199 2415 22 51 01 22 55 00 J1102+5941 16 25 15 50.6 308.2 5.4 0.0 19 2415 22 55 00 22 56 30 =1059+599 16 26 45 50.4 308.4 5.4 0.0 90 2421 22 55 01 22 56 30 IRAS10597+59 16 26 45 50.1 307.7 5.4 0.0 -11 2421 No stop 23 00 00 --- 16 30 15 49.8 308.1 5.4 0.0 199 2435 22 56 31 23 00 00 J1102+5941 16 30 15 50.0 308.8 5.4 0.0 -11 2435 No stop 23 01 30 =1059+599 16 31 46 49.9 308.9 5.5 0.0 79 2440 23 00 01 23 01 30 IRAS10597+59 16 31 46 49.6 308.3 5.5 0.0 -11 2440 No stop 23 05 00 --- 16 35 16 49.2 308.7 5.5 0.0 199 2454 23 01 31 23 05 30 J1102+5941 16 35 46 49.5 309.4 5.5 0.0 19 2454 23 05 30 23 07 00 =1059+599 16 37 16 49.3 309.5 5.6 0.0 90 2460 23 05 31 23 07 00 IRAS10597+59 16 37 16 49.0 308.9 5.6 0.0 -11 2460 No stop 23 10 30 --- 16 40 47 48.6 309.3 5.6 0.0 199 2473 23 07 01 23 10 30 J1102+5941 16 40 47 48.9 309.9 5.6 0.0 -11 2473 No stop 23 12 00 =1059+599 16 42 17 48.8 310.1 5.6 0.0 79 2479 23 10 31 23 12 00 IRAS10597+59 16 42 17 48.5 309.5 5.6 0.0 -11 2479 No stop 23 15 30 --- 16 45 48 48.1 309.9 5.7 0.0 199 2493 23 12 01 23 16 00 J1102+5941 16 46 18 48.4 310.5 5.7 0.0 19 2493 23 16 00 23 17 30 =1059+599 16 47 48 48.2 310.7 5.7 0.0 90 2498 23 16 01 Schedule for ONSALA85 (Code O8 ) Page 19 VLBI follow-up of the first (of many) OH Megamasers detected with Aperti UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Tue 1 Jun 2021 Day 152 --- 23 17 30 IRAS10597+59 16 47 48 47.9 310.1 5.7 0.0 -11 2498 No stop 23 21 00 --- 16 51 19 47.6 310.5 5.8 0.0 199 2512 23 17 31 23 21 00 J1102+5941 16 51 19 47.9 311.1 5.8 0.0 -11 2512 No stop 23 22 30 =1059+599 16 52 49 47.7 311.3 5.8 0.0 79 2518 23 21 01 23 22 30 IRAS10597+59 16 52 49 47.4 310.7 5.8 0.0 -11 2518 No stop 23 26 00 --- 16 56 20 47.0 311.1 5.9 0.0 199 2531 23 22 31 23 26 30 J1102+5941 16 56 50 47.3 311.7 5.9 0.0 19 2531 23 26 30 23 28 00 =1059+599 16 58 20 47.2 311.9 5.9 0.0 90 2537 23 26 31 23 28 00 IRAS10597+59 16 58 20 46.8 311.3 5.9 0.0 -11 2537 No stop 23 30 00 --- 17 00 20 46.6 311.5 5.9 0.0 109 2545 23 28 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess221.H512 --- 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: 7 Station: ONSALA85 Total bit rate: 512 Format: VDIF Bits per sample: 2 Sample rate: 16.000 Number of channels: 16 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 730.00 730.00 730.00 730.00 730.00 730.00 730.00 730.00 730.00 730.00 730.00 730.00 730.00 730.00 730.00 730.00 Net SB= L L U U L L U U L L U U L L U U IF SB = U U U U U U U U U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 9 1 9 2 10 2 10 3 11 3 11 4 12 4 12 BBC SB= L L U U L L U U L L U U L L U U IF = A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 The following frequency sets based on these setups were used. Frequency Set: 5 Setup file default. Used with PCAL = off LO sum= 1351.84 1351.84 1351.84 1351.84 1370.59 1370.59 1370.59 1370.59 1389.09 1389.09 1389.09 1389.09 1434.34 1434.34 1434.34 1434.34 BBC fr= 621.84 621.84 621.84 621.84 640.59 640.59 640.59 640.59 659.09 659.09 659.09 659.09 704.34 704.34 704.34 704.34 Bandwd= 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 8.00 Matching frequency sets: 5 Track assignments are: track1= 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * IRAS10597+59 10 59 44.785916 * 11 02 47.066000 11 04 03.883889 0.00 59 26 45.43336 * 59 10 36.31000 59 04 02.92774 0.00 From catalog imbedded in main SCHED input file. * 4C39.25 09 23 55.319216 * 09 27 03.013937 09 28 21.445308 0.31 J0927+3902 39 15 23.56644 * 39 02 20.85185 38 56 59.56008 0.16 0923+392 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc2016 J0927+39 GSFC 2016a X/S astro solution, 250526 observations. 1059+599 10 59 39.855860 * 11 02 42.762822 11 03 59.839818 0.87 * J1102+5941 59 57 28.62234 * 59 41 19.58540 59 34 46.34722 0.48 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc2016 GSFC 2016a X/S astro solution, 37 observations. * 3C345 16 41 17.606229 * 16 42 58.809967 16 43 43.269429 0.79 J1642+3948 39 54 10.81492 * 39 48 36.99399 39 46 13.94338 0.59 1641+399 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc2016 J1642+39 GSFC 2016a X/S astro solution, 53724 observations. SOURCE SCAN SUMMARY FOR SOURCES LISTED ABOVE Scan hours are for recording scans only. Baseline hours are only counted for scans above horizon at both ends. Source Setup file Frequency sets Observing hours (duplicates not shown) Scan Baseline IRAS10597+5sess221.H512 1 2 3 4 5 6 7 8 9 11 12 17 7.325 946.328 4C39.25 sess221.H512 1 2 3 4 5 6 7 8 9 11 12 17 0.083 12.567 J1102+5941 sess221.H512 1 2 3 4 5 6 7 8 9 11 12 17 3.400 412.695 3C345 sess221.H512 1 2 3 4 5 6 7 8 9 11 12 17 0.167 22.070 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) IRAS10597+59 74.2 4C39.25 62.8 J1102+5941 74.0 3C345 118.1 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