COVER INFORMATION Station: TIANMA65 (Code T6 ) Experiment: Resolving a gravitationally lensed dual back-hole system at z = 2.37 Exp. Code: em153b 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: 18cm 1024-8-2 Notes: Schedule for TIANMA65 (Code T6 ) Page 2 Resolving a gravitationally lensed dual back-hole system at z = 2.37 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 ---------------------------------------------------------------------------------------- --- Fri 4 Jun 2021 Day 155 --- Next scan frequencies: 1626.49 1626.49 1626.49 1626.49 1690.49 1690.49 1690.49 1690.49 Next BBC frequencies: 643.51 643.51 643.51 643.51 579.51 579.51 579.51 579.51 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 18 00 00 J1639+8631 18 58 08 33.9 -2.5 2.4 142.5 0 0 18 00 00 18 01 30 =1654+866 18 59 38 33.9 -2.5 2.4 142.2 90 12 18 00 01 18 01 30 PSJ1721+8842 18 59 38 32.2 -0.8 1.9 150.6 -9 12 No stop 18 04 55 --- 19 03 04 32.2 -0.8 2.0 149.7 196 38 18 01 31 18 05 40 J1639+8631 19 03 49 33.9 -2.6 2.5 141.1 37 38 18 05 40 18 07 05 =1654+866 19 05 14 33.8 -2.6 2.5 140.7 85 49 18 05 41 18 07 05 PSJ1721+8842 19 05 14 32.2 -0.8 2.0 149.2 -8 49 No stop 18 10 30 --- 19 08 40 32.2 -0.8 2.1 148.3 197 75 18 07 06 18 10 30 J1639+8631 19 08 40 33.8 -2.6 2.6 139.8 -8 75 No stop 18 12 00 =1654+866 19 10 10 33.8 -2.7 2.6 139.4 82 87 18 10 31 18 12 00 PSJ1721+8842 19 10 10 32.2 -0.8 2.1 147.9 -8 87 No stop 18 15 25 --- 19 13 36 32.2 -0.8 2.2 147.1 197 113 18 12 01 18 16 10 J1639+8631 19 14 21 33.7 -2.7 2.7 138.4 37 113 18 16 10 18 17 35 =1654+866 19 15 46 33.7 -2.7 2.7 138.0 85 124 18 16 11 18 17 35 PSJ1721+8842 19 15 46 32.2 -0.8 2.2 146.5 -8 124 No stop 18 21 00 --- 19 19 12 32.2 -0.9 2.3 145.7 197 151 18 17 36 18 21 00 J1639+8631 19 19 12 33.7 -2.8 2.8 137.1 -8 151 No stop 18 22 30 =1654+866 19 20 42 33.7 -2.8 2.8 136.7 82 162 18 21 01 18 22 30 PSJ1721+8842 19 20 42 32.2 -0.9 2.3 145.3 -8 162 No stop 18 25 55 --- 19 24 07 32.2 -0.9 2.3 144.4 197 189 18 22 31 18 26 40 J1639+8631 19 24 52 33.6 -2.9 2.9 135.7 37 189 18 26 40 18 28 05 =1654+866 19 26 18 33.6 -2.9 2.9 135.3 85 200 18 26 41 18 28 05 PSJ1721+8842 19 26 18 32.2 -0.9 2.4 143.9 -8 200 No stop 18 31 30 --- 19 29 43 32.1 -0.9 2.4 143.0 197 226 18 28 06 18 31 30 J1639+8631 19 29 43 33.6 -2.9 2.9 134.4 -8 226 No stop 18 33 00 =1654+866 19 31 14 33.6 -2.9 3.0 134.0 82 238 18 31 31 18 33 00 PSJ1721+8842 19 31 14 32.1 -0.9 2.5 142.6 -8 238 No stop 18 36 25 --- 19 34 39 32.1 -1.0 2.5 141.8 197 264 18 33 01 Schedule for TIANMA65 (Code T6 ) Page 3 Resolving a gravitationally lensed dual back-hole system at z = 2.37 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 ---------------------------------------------------------------------------------------- --- Fri 4 Jun 2021 Day 155 --- 18 37 10 J1639+8631 19 35 24 33.5 -3.0 3.0 133.0 37 264 18 37 10 18 38 35 =1654+866 19 36 49 33.5 -3.0 3.1 132.6 85 275 18 37 11 18 38 35 PSJ1721+8842 19 36 49 32.1 -1.0 2.6 141.2 -8 275 No stop 18 42 00 --- 19 40 15 32.1 -1.0 2.6 140.3 197 301 18 38 36 18 42 00 J1639+8631 19 40 15 33.5 -3.1 3.1 131.7 -7 301 No stop 18 43 30 =1654+866 19 41 45 33.4 -3.1 3.1 131.3 83 313 18 42 01 18 43 30 PSJ1721+8842 19 41 45 32.1 -1.0 2.6 140.0 -7 313 No stop 18 46 55 --- 19 45 11 32.1 -1.0 2.7 139.1 198 339 18 43 31 18 47 40 J1639+8631 19 45 56 33.4 -3.1 3.2 130.3 38 339 18 47 40 18 49 05 =1654+866 19 47 21 33.4 -3.1 3.2 129.9 85 350 18 47 41 18 49 05 PSJ1721+8842 19 47 21 32.1 -1.0 2.7 138.5 -7 350 No stop 18 52 30 --- 19 50 47 32.1 -1.0 2.8 137.7 198 377 18 49 06 18 52 30 J1639+8631 19 50 47 33.3 -3.2 3.3 129.0 -7 377 No stop 18 54 00 =1654+866 19 52 17 33.3 -3.2 3.3 128.6 83 388 18 52 31 18 54 00 PSJ1721+8842 19 52 17 32.1 -1.0 2.8 137.3 -7 388 No stop 18 57 25 --- 19 55 43 32.1 -1.1 2.9 136.4 198 415 18 54 01 18 58 10 J1639+8631 19 56 28 33.3 -3.2 3.4 127.6 38 415 18 58 10 18 59 35 =1654+866 19 57 53 33.3 -3.3 3.4 127.2 85 426 18 58 11 18 59 35 PSJ1721+8842 19 57 53 32.0 -1.1 2.9 135.9 -7 426 No stop 19 03 00 --- 20 01 18 32.0 -1.1 3.0 135.0 198 452 18 59 36 19 03 00 J1639+8631 20 01 18 33.2 -3.3 3.5 126.3 -7 452 No stop 19 04 30 =1654+866 20 02 49 33.2 -3.3 3.5 126.0 83 464 19 03 01 19 04 30 PSJ1721+8842 20 02 49 32.0 -1.1 3.0 134.6 -7 464 No stop 19 07 55 --- 20 06 14 32.0 -1.1 3.0 133.8 198 490 19 04 31 19 08 40 J1639+8631 20 06 59 33.1 -3.4 3.6 124.9 38 490 19 08 40 19 10 05 =1654+866 20 08 25 33.1 -3.4 3.6 124.5 85 501 19 08 41 19 10 05 PSJ1721+8842 20 08 25 32.0 -1.1 3.1 133.2 -7 501 No stop 19 13 30 --- 20 11 50 32.0 -1.1 3.1 132.4 198 528 19 10 06 19 13 30 J1639+8631 20 11 50 33.1 -3.4 3.6 123.6 -7 528 No stop 19 15 00 =1654+866 20 13 20 33.1 -3.4 3.7 123.3 83 539 19 13 31 Schedule for TIANMA65 (Code T6 ) Page 4 Resolving a gravitationally lensed dual back-hole system at z = 2.37 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 ---------------------------------------------------------------------------------------- --- Fri 4 Jun 2021 Day 155 --- 19 15 00 PSJ1721+8842 20 13 20 32.0 -1.1 3.2 132.0 -7 539 No stop 19 18 25 --- 20 16 46 32.0 -1.2 3.2 131.1 198 566 19 15 01 19 19 10 J1639+8631 20 17 31 33.0 -3.5 3.7 122.2 38 566 19 19 10 19 20 35 =1654+866 20 18 56 33.0 -3.5 3.8 121.8 85 576 19 19 11 19 20 35 PSJ1721+8842 20 18 56 32.0 -1.2 3.3 130.6 -7 576 No stop 19 24 00 --- 20 22 22 31.9 -1.2 3.3 129.7 198 603 19 20 36 19 24 00 J1639+8631 20 22 22 32.9 -3.5 3.8 121.0 -7 603 No stop 19 25 30 =1654+866 20 23 52 32.9 -3.5 3.8 120.6 83 614 19 24 01 19 30 30 3C345 20 28 53 44.1 -62.9 3.8 82.6 179 614 19 30 30 19 35 30 --- 20 33 54 43.1 -62.7 3.8 81.9 300 653 19 30 31 19 40 30 J1639+8631 20 38 55 32.7 -3.7 4.1 116.8 180 653 19 40 30 19 45 30 =1654+866 20 43 55 32.7 -3.7 4.2 115.5 300 692 19 40 31 19 45 30 PSJ1721+8842 20 43 55 31.8 -1.3 3.7 124.3 -7 692 No stop 19 48 55 --- 20 47 21 31.8 -1.3 3.7 123.4 198 718 19 45 31 19 49 40 J1639+8631 20 48 06 32.6 -3.7 4.2 114.4 38 718 19 49 40 19 51 05 =1654+866 20 49 31 32.6 -3.7 4.3 114.1 85 729 19 49 41 19 51 05 PSJ1721+8842 20 49 31 31.8 -1.3 3.8 122.9 -7 729 No stop 19 54 30 --- 20 52 57 31.8 -1.3 3.8 122.0 198 756 19 51 06 19 54 30 J1639+8631 20 52 57 32.5 -3.8 4.3 113.2 -7 756 No stop 19 56 00 =1654+866 20 54 27 32.5 -3.8 4.3 112.8 83 767 19 54 31 19 56 00 PSJ1721+8842 20 54 27 31.8 -1.3 3.8 121.6 -7 767 No stop 19 59 25 --- 20 57 53 31.8 -1.3 3.9 120.8 198 794 19 56 01 20 00 10 J1639+8631 20 58 38 32.5 -3.8 4.4 111.8 38 794 20 00 10 20 01 35 =1654+866 21 00 03 32.4 -3.8 4.4 111.4 85 804 20 00 11 20 01 35 PSJ1721+8842 21 00 03 31.8 -1.3 3.9 120.2 -7 804 No stop 20 05 00 --- 21 03 29 31.7 -1.3 4.0 119.3 198 831 20 01 36 20 05 00 J1639+8631 21 03 29 32.4 -3.8 4.5 110.5 -7 831 No stop 20 06 30 =1654+866 21 04 59 32.4 -3.8 4.5 110.2 83 842 20 05 01 20 06 30 PSJ1721+8842 21 04 59 31.7 -1.3 4.0 119.0 -7 842 No stop 20 09 55 --- 21 08 24 31.7 -1.4 4.1 118.1 198 869 20 06 31 Schedule for TIANMA65 (Code T6 ) Page 5 Resolving a gravitationally lensed dual back-hole system at z = 2.37 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 ---------------------------------------------------------------------------------------- --- Fri 4 Jun 2021 Day 155 --- 20 10 40 J1639+8631 21 09 10 32.3 -3.9 4.6 109.1 38 869 20 10 40 20 12 05 =1654+866 21 10 35 32.3 -3.9 4.6 108.7 85 880 20 10 41 20 12 05 PSJ1721+8842 21 10 35 31.7 -1.4 4.1 117.6 -7 880 No stop 20 15 30 --- 21 14 00 31.7 -1.4 4.2 116.7 198 906 20 12 06 20 15 30 J1639+8631 21 14 00 32.2 -3.9 4.7 107.9 -7 906 No stop 20 17 00 =1654+866 21 15 31 32.2 -3.9 4.7 107.5 83 918 20 15 31 20 17 00 PSJ1721+8842 21 15 31 31.7 -1.4 4.2 116.3 -7 918 No stop 20 20 25 --- 21 18 56 31.7 -1.4 4.3 115.5 198 944 20 17 01 20 21 10 J1639+8631 21 19 41 32.1 -3.9 4.8 106.4 38 944 20 21 10 20 22 35 =1654+866 21 21 07 32.1 -3.9 4.8 106.1 85 955 20 21 11 20 22 35 PSJ1721+8842 21 21 07 31.7 -1.4 4.3 114.9 -7 955 No stop 20 26 00 --- 21 24 32 31.6 -1.4 4.3 114.0 198 982 20 22 36 20 26 00 J1639+8631 21 24 32 32.1 -4.0 4.8 105.2 -7 982 No stop 20 27 30 =1654+866 21 26 02 32.1 -4.0 4.9 104.8 83 993 20 26 01 20 27 30 PSJ1721+8842 21 26 02 31.6 -1.4 4.4 113.7 -7 993 No stop 20 30 55 --- 21 29 28 31.6 -1.4 4.4 112.8 198 1020 20 27 31 20 31 40 J1639+8631 21 30 13 32.0 -4.0 4.9 103.8 38 1020 20 31 40 20 33 05 =1654+866 21 31 38 32.0 -4.0 5.0 103.4 85 1031 20 31 41 20 33 05 PSJ1721+8842 21 31 38 31.6 -1.4 4.5 112.3 -7 1031 No stop 20 36 30 --- 21 35 04 31.6 -1.4 4.5 111.4 198 1057 20 33 06 20 36 30 J1639+8631 21 35 04 31.9 -4.0 5.0 102.6 -7 1057 No stop 20 38 00 =1654+866 21 36 34 31.9 -4.0 5.0 102.2 83 1069 20 36 31 20 38 00 PSJ1721+8842 21 36 34 31.6 -1.4 4.5 111.0 -7 1069 No stop 20 41 25 --- 21 40 00 31.6 -1.4 4.6 110.2 198 1095 20 38 01 20 42 10 J1639+8631 21 40 45 31.8 -4.0 5.1 101.1 38 1095 20 42 10 20 43 35 =1654+866 21 42 10 31.8 -4.0 5.1 100.8 85 1106 20 42 11 20 43 35 PSJ1721+8842 21 42 10 31.5 -1.5 4.6 109.6 -7 1106 No stop 20 47 00 --- 21 45 36 31.5 -1.5 4.7 108.8 198 1132 20 43 36 20 47 00 J1639+8631 21 45 36 31.8 -4.0 5.2 99.9 -7 1132 No stop 20 48 30 =1654+866 21 47 06 31.7 -4.0 5.2 99.5 83 1144 20 47 01 Schedule for TIANMA65 (Code T6 ) Page 6 Resolving a gravitationally lensed dual back-hole system at z = 2.37 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 ---------------------------------------------------------------------------------------- --- Fri 4 Jun 2021 Day 155 --- 20 48 30 PSJ1721+8842 21 47 06 31.5 -1.5 4.7 108.4 -7 1144 No stop 20 51 55 --- 21 50 31 31.5 -1.5 4.8 107.5 198 1170 20 48 31 20 52 40 J1639+8631 21 51 16 31.7 -4.1 5.3 98.5 38 1170 20 52 40 20 54 05 =1654+866 21 52 42 31.7 -4.1 5.3 98.1 85 1181 20 52 41 20 54 05 PSJ1721+8842 21 52 42 31.5 -1.5 4.8 107.0 -7 1181 No stop 20 57 30 --- 21 56 07 31.5 -1.5 4.9 106.1 198 1208 20 54 06 20 57 30 J1639+8631 21 56 07 31.6 -4.1 5.4 97.3 -7 1208 No stop 20 59 00 =1654+866 21 57 37 31.6 -4.1 5.4 96.9 83 1219 20 57 31 20 59 00 PSJ1721+8842 21 57 37 31.5 -1.5 4.9 105.7 -7 1219 No stop 21 02 25 --- 22 01 03 31.4 -1.5 5.0 104.9 198 1246 20 59 01 21 03 10 J1639+8631 22 01 48 31.5 -4.1 5.5 95.8 38 1246 21 03 10 21 04 35 =1654+866 22 03 13 31.5 -4.1 5.5 95.5 85 1257 21 03 11 21 04 35 PSJ1721+8842 22 03 13 31.4 -1.5 5.0 104.3 -7 1257 No stop 21 08 00 --- 22 06 39 31.4 -1.5 5.0 103.5 198 1283 21 04 36 21 08 00 J1639+8631 22 06 39 31.4 -4.1 5.5 94.6 -7 1283 No stop 21 09 30 =1654+866 22 08 09 31.4 -4.1 5.6 94.3 83 1295 21 08 01 21 09 30 PSJ1721+8842 22 08 09 31.4 -1.5 5.1 103.1 -7 1295 No stop 21 12 55 --- 22 11 35 31.4 -1.5 5.1 102.2 198 1321 21 09 31 21 13 40 J1639+8631 22 12 20 31.4 -4.1 5.6 93.2 38 1321 21 13 40 21 15 05 =1654+866 22 13 45 31.3 -4.1 5.7 92.9 85 1332 21 13 41 21 15 05 PSJ1721+8842 22 13 45 31.4 -1.5 5.2 101.7 -7 1332 No stop 21 18 30 --- 22 17 11 31.3 -1.5 5.2 100.8 198 1358 21 15 06 21 18 30 J1639+8631 22 17 11 31.3 -4.1 5.7 92.0 -7 1358 No stop 21 20 00 =1654+866 22 18 41 31.3 -4.1 5.7 91.6 83 1370 21 18 31 21 20 00 PSJ1721+8842 22 18 41 31.3 -1.5 5.3 100.5 -7 1370 No stop 21 23 25 --- 22 22 07 31.3 -1.5 5.3 99.6 198 1396 21 20 01 21 24 10 J1639+8631 22 22 52 31.2 -4.1 5.8 90.6 38 1396 21 24 10 21 25 35 =1654+866 22 24 17 31.2 -4.1 5.8 90.2 85 1407 21 24 11 21 25 35 PSJ1721+8842 22 24 17 31.3 -1.5 5.3 99.1 -7 1407 No stop 21 29 00 --- 22 27 42 31.3 -1.5 5.4 98.2 198 1434 21 25 36 Schedule for TIANMA65 (Code T6 ) Page 7 Resolving a gravitationally lensed dual back-hole system at z = 2.37 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 ---------------------------------------------------------------------------------------- --- Fri 4 Jun 2021 Day 155 --- 21 29 00 J1639+8631 22 27 42 31.1 -4.1 5.9 89.4 -7 1434 No stop 21 30 30 =1654+866 22 29 13 31.1 -4.1 5.9 89.0 83 1445 21 29 01 21 30 30 PSJ1721+8842 22 29 13 31.3 -1.5 5.4 97.8 -7 1445 No stop 21 33 55 --- 22 32 38 31.3 -1.5 5.5 97.0 198 1472 21 30 31 21 34 40 J1639+8631 22 33 23 31.0 -4.1 6.0 88.0 38 1472 21 34 40 21 36 05 =1654+866 22 34 49 31.0 -4.1 6.0 87.6 85 1483 21 34 41 21 36 05 PSJ1721+8842 22 34 49 31.2 -1.5 5.5 96.4 -7 1483 No stop 21 39 30 --- 22 38 14 31.2 -1.5 5.6 95.6 198 1509 21 36 06 21 39 30 J1639+8631 22 38 14 31.0 -4.1 6.1 86.8 -7 1509 No stop 21 41 00 =1654+866 22 39 44 30.9 -4.1 6.1 86.4 83 1521 21 39 31 21 41 00 PSJ1721+8842 22 39 44 31.2 -1.5 5.6 95.2 -7 1521 No stop 21 44 25 --- 22 43 10 31.2 -1.5 5.7 94.3 198 1547 21 41 01 21 45 10 J1639+8631 22 43 55 30.9 -4.1 6.2 85.3 38 1547 21 45 10 21 46 35 =1654+866 22 45 20 30.8 -4.1 6.2 85.0 85 1558 21 45 11 21 46 35 PSJ1721+8842 22 45 20 31.2 -1.5 5.7 93.8 -7 1558 No stop 21 50 00 --- 22 48 46 31.2 -1.5 5.8 92.9 198 1584 21 46 36 21 50 00 J1639+8631 22 48 46 30.8 -4.1 6.3 84.1 -7 1584 No stop 21 51 30 =1654+866 22 50 16 30.8 -4.1 6.3 83.8 83 1596 21 50 01 21 51 30 PSJ1721+8842 22 50 16 31.2 -1.5 5.8 92.6 -7 1596 No stop 21 54 55 --- 22 53 42 31.1 -1.5 5.8 91.7 198 1622 21 51 31 21 55 40 J1639+8631 22 54 27 30.7 -4.1 6.3 82.7 38 1622 21 55 40 21 57 05 =1654+866 22 55 52 30.7 -4.1 6.4 82.4 85 1633 21 55 41 21 57 05 PSJ1721+8842 22 55 52 31.1 -1.5 5.9 91.2 -7 1633 No stop 22 00 30 --- 22 59 18 31.1 -1.5 5.9 90.3 198 1660 21 57 06 22 00 30 J1639+8631 22 59 18 30.6 -4.1 6.4 81.5 -7 1660 No stop 22 02 00 =1654+866 23 00 48 30.6 -4.1 6.5 81.1 83 1671 22 00 31 22 02 00 PSJ1721+8842 23 00 48 31.1 -1.5 6.0 89.9 -7 1671 No stop 22 05 25 --- 23 04 13 31.1 -1.5 6.0 89.1 198 1698 22 02 01 22 06 10 J1639+8631 23 04 59 30.6 -4.0 6.5 80.1 38 1698 22 06 10 22 07 35 =1654+866 23 06 24 30.5 -4.0 6.5 79.8 85 1709 22 06 11 Schedule for TIANMA65 (Code T6 ) Page 8 Resolving a gravitationally lensed dual back-hole system at z = 2.37 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 ---------------------------------------------------------------------------------------- --- Fri 4 Jun 2021 Day 155 --- 22 07 35 PSJ1721+8842 23 06 24 31.1 -1.5 6.0 88.5 -7 1709 No stop 22 11 00 --- 23 09 49 31.0 -1.5 6.1 87.7 198 1735 22 07 36 22 11 00 J1639+8631 23 09 49 30.5 -4.0 6.6 78.9 -7 1735 No stop 22 12 30 =1654+866 23 11 20 30.5 -4.0 6.6 78.5 83 1747 22 11 01 22 12 30 PSJ1721+8842 23 11 20 31.0 -1.5 6.1 87.3 -7 1747 No stop 22 15 55 --- 23 14 45 31.0 -1.5 6.2 86.4 198 1773 22 12 31 22 16 40 J1639+8631 23 15 30 30.4 -4.0 6.7 77.5 38 1773 22 16 40 22 18 05 =1654+866 23 16 55 30.4 -4.0 6.7 77.1 85 1784 22 16 41 22 18 05 PSJ1721+8842 23 16 55 31.0 -1.5 6.2 85.9 -7 1784 No stop 22 21 30 --- 23 20 21 31.0 -1.5 6.3 85.0 198 1811 22 18 06 22 21 30 J1639+8631 23 20 21 30.3 -4.0 6.8 76.3 -7 1811 No stop 22 23 00 =1654+866 23 21 51 30.3 -4.0 6.8 75.9 83 1822 22 21 31 22 23 00 PSJ1721+8842 23 21 51 31.0 -1.5 6.3 84.7 -7 1822 No stop 22 26 25 --- 23 25 17 31.0 -1.5 6.4 83.8 198 1849 22 23 01 22 27 10 J1639+8631 23 26 02 30.2 -4.0 6.9 74.9 38 1849 22 27 10 22 28 35 =1654+866 23 27 27 30.2 -4.0 6.9 74.5 85 1860 22 27 11 22 28 35 PSJ1721+8842 23 27 27 30.9 -1.5 6.4 83.3 -7 1860 No stop 22 32 00 --- 23 30 53 30.9 -1.5 6.5 82.4 198 1886 22 28 36 22 32 00 J1639+8631 23 30 53 30.2 -3.9 7.0 73.7 -7 1886 No stop 22 33 30 =1654+866 23 32 23 30.1 -3.9 7.0 73.3 83 1898 22 32 01 22 33 30 PSJ1721+8842 23 32 23 30.9 -1.5 6.5 82.0 -7 1898 No stop 22 36 55 --- 23 35 49 30.9 -1.5 6.5 81.2 198 1924 22 33 31 22 37 40 J1639+8631 23 36 34 30.1 -3.9 7.0 72.3 38 1924 22 37 40 22 39 05 =1654+866 23 37 59 30.1 -3.9 7.1 71.9 85 1935 22 37 41 22 39 05 PSJ1721+8842 23 37 59 30.9 -1.5 6.6 80.6 -7 1935 No stop 22 42 30 --- 23 41 24 30.9 -1.5 6.6 79.8 198 1961 22 39 06 22 42 30 J1639+8631 23 41 24 30.0 -3.9 7.1 71.1 -7 1961 No stop 22 44 00 =1654+866 23 42 55 30.0 -3.9 7.2 70.7 83 1973 22 42 31 22 44 00 PSJ1721+8842 23 42 55 30.9 -1.5 6.7 79.4 -7 1973 No stop 22 47 25 --- 23 46 20 30.8 -1.5 6.7 78.6 198 1999 22 44 01 Schedule for TIANMA65 (Code T6 ) Page 9 Resolving a gravitationally lensed dual back-hole system at z = 2.37 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 ---------------------------------------------------------------------------------------- --- Fri 4 Jun 2021 Day 155 --- 22 48 10 J1639+8631 23 47 05 29.9 -3.8 7.2 69.7 38 1999 22 48 10 22 49 35 =1654+866 23 48 31 29.9 -3.8 7.2 69.3 85 2010 22 48 11 22 49 35 PSJ1721+8842 23 48 31 30.8 -1.5 6.7 78.0 -7 2010 No stop 22 53 00 --- 23 51 56 30.8 -1.5 6.8 77.2 198 2037 22 49 36 22 53 00 J1639+8631 23 51 56 29.9 -3.8 7.3 68.5 -7 2037 No stop 22 54 30 =1654+866 23 53 26 29.8 -3.8 7.3 68.1 83 2048 22 53 01 22 54 30 PSJ1721+8842 23 53 26 30.8 -1.5 6.8 76.8 -7 2048 No stop 22 57 55 --- 23 56 52 30.8 -1.5 6.9 75.9 198 2075 22 54 31 22 58 40 J1639+8631 23 57 37 29.8 -3.8 7.4 67.1 38 2075 22 58 40 23 00 05 =1654+866 23 59 02 29.8 -3.8 7.4 66.8 85 2086 22 58 41 23 00 05 PSJ1721+8842 23 59 02 30.8 -1.5 6.9 75.4 -7 2086 No stop 23 03 30 --- 00 02 28 30.7 -1.5 7.0 74.5 198 2112 23 00 06 23 03 30 J1639+8631 00 02 28 29.7 -3.7 7.5 65.9 -7 2112 No stop 23 05 00 =1654+866 00 03 58 29.7 -3.7 7.5 65.5 83 2124 23 03 31 23 05 00 PSJ1721+8842 00 03 58 30.7 -1.5 7.0 74.2 -7 2124 No stop 23 08 25 --- 00 07 24 30.7 -1.5 7.1 73.3 198 2150 23 05 01 23 09 10 J1639+8631 00 08 09 29.6 -3.7 7.6 64.5 39 2150 23 09 10 23 10 35 =1654+866 00 09 34 29.6 -3.7 7.6 64.2 85 2161 23 09 11 23 10 35 PSJ1721+8842 00 09 34 30.7 -1.5 7.1 72.8 -6 2161 No stop 23 14 00 --- 00 13 00 30.7 -1.5 7.2 71.9 199 2187 23 10 36 23 14 00 J1639+8631 00 13 00 29.6 -3.7 7.7 63.3 -7 2187 No stop 23 15 30 =1654+866 00 14 30 29.5 -3.7 7.7 63.0 83 2199 23 14 01 23 15 30 PSJ1721+8842 00 14 30 30.7 -1.5 7.2 71.5 -7 2199 No stop 23 18 55 --- 00 17 55 30.7 -1.5 7.2 70.7 198 2225 23 15 31 23 19 40 J1639+8631 00 18 41 29.5 -3.6 7.7 61.9 38 2225 23 19 40 23 21 05 =1654+866 00 20 06 29.5 -3.6 7.8 61.6 85 2236 23 19 41 23 21 05 PSJ1721+8842 00 20 06 30.7 -1.4 7.3 70.1 -7 2236 No stop 23 24 30 --- 00 23 31 30.6 -1.4 7.3 69.3 198 2263 23 21 06 23 24 30 J1639+8631 00 23 31 29.4 -3.6 7.8 60.7 -7 2263 No stop 23 26 00 =1654+866 00 25 02 29.4 -3.6 7.9 60.4 83 2274 23 24 31 Schedule for TIANMA65 (Code T6 ) Page 10 Resolving a gravitationally lensed dual back-hole system at z = 2.37 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 ---------------------------------------------------------------------------------------- --- Fri 4 Jun 2021 Day 155 --- 23 26 00 PSJ1721+8842 00 25 02 30.6 -1.4 7.4 68.9 -7 2274 No stop 23 29 25 --- 00 28 27 30.6 -1.4 7.4 68.1 198 2301 23 26 01 23 30 10 J1639+8631 00 29 12 29.3 -3.5 7.9 59.3 38 2301 23 30 10 23 31 35 =1654+866 00 30 38 29.3 -3.5 7.9 59.0 85 2312 23 30 11 23 31 35 PSJ1721+8842 00 30 38 30.6 -1.4 7.4 67.5 -7 2312 No stop 23 35 00 --- 00 34 03 30.6 -1.4 7.5 66.7 198 2338 23 31 36 23 35 00 J1639+8631 00 34 03 29.3 -3.5 8.0 58.2 -7 2338 No stop 23 36 30 =1654+866 00 35 33 29.3 -3.5 8.0 57.8 83 2350 23 35 01 23 36 30 PSJ1721+8842 00 35 33 30.6 -1.4 7.5 66.3 -7 2350 No stop 23 39 55 --- 00 38 59 30.6 -1.4 7.6 65.5 198 2376 23 36 31 23 40 40 J1639+8631 00 39 44 29.2 -3.4 8.1 56.8 38 2376 23 40 40 23 42 05 =1654+866 00 41 09 29.2 -3.4 8.1 56.4 85 2387 23 40 41 23 42 05 PSJ1721+8842 00 41 09 30.5 -1.4 7.6 64.9 -7 2387 No stop 23 45 30 --- 00 44 35 30.5 -1.4 7.7 64.1 198 2413 23 42 06 23 45 30 J1639+8631 00 44 35 29.2 -3.4 8.2 55.6 -7 2413 No stop 23 47 00 =1654+866 00 46 05 29.1 -3.4 8.2 55.2 83 2425 23 45 31 23 47 00 PSJ1721+8842 00 46 05 30.5 -1.4 7.7 63.7 -8 2425 No stop 23 50 25 --- 00 49 31 30.5 -1.4 7.8 62.8 197 2451 23 47 01 23 51 10 J1639+8631 00 50 16 29.1 -3.3 8.3 54.2 37 2451 23 51 10 23 52 35 =1654+866 00 51 41 29.1 -3.3 8.3 53.8 85 2462 23 51 11 23 52 35 PSJ1721+8842 00 51 41 30.5 -1.4 7.8 62.3 -8 2462 No stop 23 56 00 --- 00 55 07 30.5 -1.4 7.9 61.4 197 2489 23 52 36 23 56 00 J1639+8631 00 55 07 29.0 -3.3 8.4 53.0 -8 2489 No stop 23 57 30 =1654+866 00 56 37 29.0 -3.3 8.4 52.6 82 2500 23 56 01 --- Sat 5 Jun 2021 Day 156 --- 00 02 30 3C454.3 01 01 38 57.6 250.1 2.1 57.0 -210 2500 00 02 30 00 07 30 --- 01 06 38 56.6 251.3 2.2 57.7 90 2539 00 02 31 00 12 30 J1639+8631 01 11 39 28.8 356.9 8.6 49.0 87 2539 00 12 30 00 17 30 =1654+866 01 16 40 28.8 357.0 8.7 47.7 300 2578 00 12 31 Schedule for TIANMA65 (Code T6 ) Page 11 Resolving a gravitationally lensed dual back-hole system at z = 2.37 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 ---------------------------------------------------------------------------------------- --- Sat 5 Jun 2021 Day 156 --- 00 17 30 PSJ1721+8842 01 16 40 30.4 358.7 8.2 56.1 -8 2578 No stop 00 20 55 --- 01 20 06 30.3 358.7 8.3 55.2 197 2604 00 17 31 00 21 40 J1639+8631 01 20 51 28.7 357.0 8.8 46.7 37 2604 00 21 40 00 23 05 =1654+866 01 22 16 28.7 357.0 8.8 46.4 85 2615 00 21 41 00 23 05 PSJ1721+8842 01 22 16 30.3 358.7 8.3 54.7 -9 2615 No stop 00 26 30 --- 01 25 42 30.3 358.8 8.4 53.9 196 2641 00 23 06 00 26 30 J1639+8631 01 25 42 28.7 357.1 8.9 45.5 -9 2641 No stop 00 28 00 =1654+866 01 27 12 28.6 357.1 8.9 45.2 81 2653 00 26 31 00 28 00 PSJ1721+8842 01 27 12 30.3 358.8 8.4 53.5 -9 2653 No stop 00 31 25 --- 01 30 37 30.3 358.8 8.4 52.6 196 2679 00 28 01 00 32 10 J1639+8631 01 31 23 28.6 357.1 9.0 44.2 36 2679 00 32 10 00 33 35 =1654+866 01 32 48 28.6 357.2 9.0 43.8 85 2690 00 32 11 00 33 35 PSJ1721+8842 01 32 48 30.3 358.8 8.5 52.1 -9 2690 No stop 00 37 00 --- 01 36 13 30.3 358.8 8.5 51.2 196 2717 00 33 36 00 37 00 J1639+8631 01 36 13 28.6 357.2 9.0 43.0 -9 2717 No stop 00 38 30 =1654+866 01 37 44 28.5 357.2 9.1 42.6 81 2728 00 37 01 00 38 30 PSJ1721+8842 01 37 44 30.3 358.8 8.6 50.9 -9 2728 No stop 00 41 55 --- 01 41 09 30.2 358.8 8.6 50.0 196 2755 00 38 31 00 42 40 J1639+8631 01 41 54 28.5 357.3 9.1 41.6 36 2755 00 42 40 00 44 05 =1654+866 01 43 19 28.5 357.3 9.2 41.2 85 2766 00 42 41 00 44 05 PSJ1721+8842 01 43 19 30.2 358.8 8.7 49.5 -9 2766 No stop 00 47 30 --- 01 46 45 30.2 358.8 8.7 48.6 196 2792 00 44 06 00 47 30 J1639+8631 01 46 45 28.4 357.3 9.2 40.4 -9 2792 No stop 00 49 00 =1654+866 01 48 15 28.4 357.4 9.2 40.0 81 2804 00 47 31 00 49 00 PSJ1721+8842 01 48 15 30.2 358.9 8.7 48.3 -9 2804 No stop 00 52 25 --- 01 51 41 30.2 358.9 8.8 47.4 196 2830 00 49 01 00 53 10 J1639+8631 01 52 26 28.4 357.4 9.3 39.0 36 2830 00 53 10 00 54 35 =1654+866 01 53 51 28.4 357.4 9.3 38.7 85 2841 00 53 11 00 54 35 PSJ1721+8842 01 53 51 30.2 358.9 8.8 46.9 -9 2841 No stop 00 58 00 --- 01 57 17 30.2 358.9 8.9 46.0 196 2868 00 54 36 Schedule for TIANMA65 (Code T6 ) Page 12 Resolving a gravitationally lensed dual back-hole system at z = 2.37 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 ---------------------------------------------------------------------------------------- --- Sat 5 Jun 2021 Day 156 --- 00 58 00 J1639+8631 01 57 17 28.3 357.5 9.4 37.9 -9 2868 No stop 00 59 30 =1654+866 01 58 47 28.3 357.5 9.4 37.5 81 2879 00 58 01 00 59 30 PSJ1721+8842 01 58 47 30.2 358.9 8.9 45.7 -9 2879 No stop 01 02 55 --- 02 02 13 30.2 358.9 9.0 44.8 196 2906 00 59 31 01 03 40 J1639+8631 02 02 58 28.3 357.6 9.5 36.5 36 2906 01 03 40 01 05 05 =1654+866 02 04 23 28.3 357.6 9.5 36.1 85 2916 01 03 41 01 05 05 PSJ1721+8842 02 04 23 30.2 358.9 9.0 44.3 -9 2916 No stop 01 08 30 --- 02 07 48 30.1 358.9 9.1 43.4 196 2943 01 05 06 01 08 30 J1639+8631 02 07 48 28.2 357.6 9.6 35.3 -10 2943 No stop 01 10 00 =1654+866 02 09 19 28.2 357.7 9.6 34.9 80 2954 01 08 31 01 10 00 PSJ1721+8842 02 09 19 30.1 358.9 9.1 43.1 -10 2954 No stop 01 13 25 --- 02 12 44 30.1 359.0 9.2 42.2 195 2981 01 10 01 01 14 10 J1639+8631 02 13 29 28.2 357.7 9.7 33.9 35 2981 01 14 10 01 15 35 =1654+866 02 14 55 28.2 357.7 9.7 33.6 85 2992 01 14 11 01 15 35 PSJ1721+8842 02 14 55 30.1 359.0 9.2 41.7 -10 2992 No stop 01 19 00 --- 02 18 20 30.1 359.0 9.2 40.8 195 3018 01 15 36 01 19 00 J1639+8631 02 18 20 28.2 357.8 9.7 32.7 -10 3018 No stop 01 20 30 =1654+866 02 19 50 28.1 357.8 9.8 32.4 80 3030 01 19 01 01 20 30 PSJ1721+8842 02 19 50 30.1 359.0 9.3 40.4 -10 3030 No stop 01 23 55 --- 02 23 16 30.1 359.0 9.3 39.6 195 3056 01 20 31 01 24 40 J1639+8631 02 24 01 28.1 357.9 9.8 31.4 35 3056 01 24 40 01 26 05 =1654+866 02 25 26 28.1 357.9 9.9 31.0 85 3067 01 24 41 01 26 05 PSJ1721+8842 02 25 26 30.1 359.0 9.4 39.1 -10 3067 No stop 01 29 30 --- 02 28 52 30.1 359.0 9.4 38.2 195 3094 01 26 06 01 29 30 J1639+8631 02 28 52 28.1 357.9 9.9 30.2 -10 3094 No stop 01 31 00 =1654+866 02 30 22 28.1 358.0 9.9 29.8 80 3105 01 29 31 01 31 00 PSJ1721+8842 02 30 22 30.1 359.1 9.4 37.8 -10 3105 No stop 01 34 25 --- 02 33 48 30.0 359.1 9.5 37.0 195 3132 01 31 01 01 35 10 J1639+8631 02 34 33 28.0 358.0 10.0 28.8 35 3132 01 35 10 01 36 35 =1654+866 02 35 58 28.0 358.0 10.0 28.5 85 3143 01 35 11 Schedule for TIANMA65 (Code T6 ) Page 13 Resolving a gravitationally lensed dual back-hole system at z = 2.37 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 ---------------------------------------------------------------------------------------- --- Sat 5 Jun 2021 Day 156 --- 01 36 35 PSJ1721+8842 02 35 58 30.0 359.1 9.5 36.5 -10 3143 No stop 01 40 00 --- 02 39 24 30.0 359.1 9.6 35.6 195 3169 01 36 36 01 40 00 J1639+8631 02 39 24 28.0 358.1 10.1 27.6 -10 3169 No stop 01 41 30 =1654+866 02 40 54 28.0 358.1 10.1 27.3 80 3181 01 40 01 01 41 30 PSJ1721+8842 02 40 54 30.0 359.1 9.6 35.2 -10 3181 No stop 01 44 55 --- 02 44 19 30.0 359.1 9.7 34.4 195 3207 01 41 31 01 45 40 J1639+8631 02 45 05 28.0 358.2 10.2 26.3 35 3207 01 45 40 01 47 05 =1654+866 02 46 30 27.9 358.2 10.2 25.9 85 3218 01 45 41 01 47 05 PSJ1721+8842 02 46 30 30.0 359.1 9.7 33.9 -10 3218 No stop 01 50 30 --- 02 49 55 30.0 359.2 9.8 33.0 195 3244 01 47 06 01 50 30 J1639+8631 02 49 55 27.9 358.3 10.3 25.1 -10 3244 No stop 01 52 00 =1654+866 02 51 26 27.9 358.3 10.3 24.7 80 3256 01 50 31 01 52 00 PSJ1721+8842 02 51 26 30.0 359.2 9.8 32.6 -10 3256 No stop 01 55 25 --- 02 54 51 30.0 359.2 9.9 31.8 195 3282 01 52 01 01 56 10 J1639+8631 02 55 36 27.9 358.4 10.4 23.7 35 3282 01 56 10 01 57 35 =1654+866 02 57 02 27.9 358.4 10.4 23.4 85 3293 01 56 11 01 57 35 PSJ1721+8842 02 57 02 30.0 359.2 9.9 31.3 -10 3293 No stop 02 01 00 --- 03 00 27 30.0 359.2 9.9 30.4 195 3320 01 57 36 02 01 00 J1639+8631 03 00 27 27.9 358.4 10.4 22.5 -10 3320 No stop 02 02 30 =1654+866 03 01 57 27.8 358.5 10.5 22.2 80 3331 02 01 01 02 02 30 PSJ1721+8842 03 01 57 30.0 359.2 10.0 30.0 -10 3331 No stop 02 05 55 --- 03 05 23 29.9 359.2 10.0 29.2 195 3358 02 02 31 02 06 40 J1639+8631 03 06 08 27.8 358.5 10.5 21.2 35 3358 02 06 40 02 08 05 =1654+866 03 07 33 27.8 358.5 10.6 20.8 85 3369 02 06 41 02 08 05 PSJ1721+8842 03 07 33 29.9 359.3 10.1 28.7 -10 3369 No stop 02 11 30 --- 03 10 59 29.9 359.3 10.1 27.8 195 3395 02 08 06 02 11 30 J1639+8631 03 10 59 27.8 358.6 10.6 20.0 -11 3395 No stop 02 13 00 =1654+866 03 12 29 27.8 358.6 10.6 19.6 79 3407 02 11 31 02 13 00 PSJ1721+8842 03 12 29 29.9 359.3 10.1 27.4 -11 3407 No stop 02 16 25 --- 03 15 55 29.9 359.3 10.2 26.6 194 3433 02 13 01 Schedule for TIANMA65 (Code T6 ) Page 14 Resolving a gravitationally lensed dual back-hole system at z = 2.37 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 ---------------------------------------------------------------------------------------- --- Sat 5 Jun 2021 Day 156 --- 02 17 10 J1639+8631 03 16 40 27.8 358.7 10.7 18.6 34 3433 02 17 10 02 18 35 =1654+866 03 18 05 27.8 358.7 10.7 18.3 85 3444 02 17 11 02 18 35 PSJ1721+8842 03 18 05 29.9 359.3 10.2 26.0 -11 3444 No stop 02 22 00 --- 03 21 31 29.9 359.3 10.3 25.2 194 3470 02 18 36 02 22 00 J1639+8631 03 21 31 27.7 358.8 10.8 17.4 -11 3470 No stop 02 23 30 =1654+866 03 23 01 27.7 358.8 10.8 17.1 79 3482 02 22 01 02 23 30 PSJ1721+8842 03 23 01 29.9 359.4 10.3 24.8 -11 3482 No stop 02 26 55 --- 03 26 26 29.9 359.4 10.4 24.0 194 3508 02 23 31 02 27 40 J1639+8631 03 27 11 27.7 358.9 10.9 16.1 34 3508 02 27 40 02 29 05 =1654+866 03 28 37 27.7 358.9 10.9 15.7 85 3519 02 27 41 02 29 05 PSJ1721+8842 03 28 37 29.9 359.4 10.4 23.4 -11 3519 No stop 02 32 30 --- 03 32 02 29.9 359.4 10.5 22.6 194 3546 02 29 06 02 32 30 J1639+8631 03 32 02 27.7 358.9 11.0 14.9 -11 3546 No stop 02 34 00 =1654+866 03 33 33 27.7 359.0 11.0 14.5 79 3557 02 32 31 02 34 00 PSJ1721+8842 03 33 33 29.9 359.4 10.5 22.2 -11 3557 No stop 02 37 25 --- 03 36 58 29.9 359.4 10.6 21.4 194 3584 02 34 01 02 38 10 J1639+8631 03 37 43 27.7 359.0 11.1 13.5 34 3584 02 38 10 02 39 35 =1654+866 03 39 08 27.7 359.1 11.1 13.2 85 3595 02 38 11 02 39 35 PSJ1721+8842 03 39 08 29.9 359.5 10.6 20.9 -11 3595 No stop 02 43 00 --- 03 42 34 29.9 359.5 10.6 20.0 194 3621 02 39 36 02 43 00 J1639+8631 03 42 34 27.7 359.1 11.1 12.3 -11 3621 No stop 02 44 30 =1654+866 03 44 04 27.7 359.1 11.2 12.0 79 3633 02 43 01 02 44 30 PSJ1721+8842 03 44 04 29.9 359.5 10.7 19.6 -11 3633 No stop 02 47 55 --- 03 47 30 29.8 359.5 10.7 18.8 194 3659 02 44 31 02 48 40 J1639+8631 03 48 15 27.6 359.2 11.2 11.0 34 3659 02 48 40 02 50 05 =1654+866 03 49 40 27.6 359.2 11.3 10.6 85 3670 02 48 41 02 50 05 PSJ1721+8842 03 49 40 29.8 359.5 10.8 18.3 -11 3670 No stop 02 53 30 --- 03 53 06 29.8 359.5 10.8 17.4 194 3696 02 50 06 02 53 30 J1639+8631 03 53 06 27.6 359.3 11.3 9.8 -11 3696 No stop 02 55 00 =1654+866 03 54 36 27.6 359.3 11.3 9.4 79 3708 02 53 31 Schedule for TIANMA65 (Code T6 ) Page 15 Resolving a gravitationally lensed dual back-hole system at z = 2.37 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 ---------------------------------------------------------------------------------------- --- Sat 5 Jun 2021 Day 156 --- 02 55 00 PSJ1721+8842 03 54 36 29.8 359.5 10.8 17.0 -11 3708 No stop 02 58 25 --- 03 58 02 29.8 359.6 10.9 16.2 194 3734 02 55 01 02 59 10 J1639+8631 03 58 47 27.6 359.4 11.4 8.4 34 3734 02 59 10 03 00 35 =1654+866 04 00 12 27.6 359.4 11.4 8.1 85 3745 02 59 11 03 00 35 PSJ1721+8842 04 00 12 29.8 359.6 10.9 15.7 -11 3745 No stop 03 04 00 --- 04 03 37 29.8 359.6 11.0 14.8 194 3772 03 00 36 03 04 00 J1639+8631 04 03 37 27.6 359.5 11.5 7.3 -11 3772 No stop 03 05 30 =1654+866 04 05 08 27.6 359.5 11.5 6.9 79 3783 03 04 01 03 05 30 PSJ1721+8842 04 05 08 29.8 359.6 11.0 14.4 -11 3783 No stop 03 08 55 --- 04 08 33 29.8 359.6 11.1 13.6 194 3810 03 05 31 03 09 40 J1639+8631 04 09 18 27.6 359.6 11.6 5.9 34 3810 03 09 40 03 11 05 =1654+866 04 10 44 27.6 359.6 11.6 5.5 85 3821 03 09 41 03 11 05 PSJ1721+8842 04 10 44 29.8 359.7 11.1 13.1 -11 3821 No stop 03 14 30 --- 04 14 09 29.8 359.7 11.2 12.2 194 3847 03 11 06 03 14 30 J1639+8631 04 14 09 27.6 359.7 11.7 4.7 -11 3847 No stop 03 16 00 =1654+866 04 15 39 27.6 359.7 11.7 4.4 79 3859 03 14 31 03 16 00 PSJ1721+8842 04 15 39 29.8 359.7 11.2 11.8 -11 3859 No stop 03 19 25 --- 04 19 05 29.8 359.7 11.3 11.0 194 3885 03 16 01 03 20 10 J1639+8631 04 19 50 27.6 359.8 11.8 3.3 34 3885 03 20 10 03 21 35 =1654+866 04 21 15 27.6 359.8 11.8 3.0 85 3896 03 20 11 03 21 35 PSJ1721+8842 04 21 15 29.8 359.7 11.3 10.5 -11 3896 No stop 03 25 00 --- 04 24 41 29.8 359.7 11.4 9.6 194 3923 03 21 36 03 25 00 J1639+8631 04 24 41 27.6 359.8 11.8 2.2 -11 3923 No stop 03 26 30 =1654+866 04 26 11 27.6 359.9 11.9 1.8 79 3934 03 25 01 03 26 30 PSJ1721+8842 04 26 11 29.8 359.8 11.4 9.2 -11 3934 No stop 03 29 55 --- 04 29 37 29.8 359.8 11.4 8.4 194 3961 03 26 31 03 30 40 J1639+8631 04 30 22 27.6 359.9 11.9 0.8 34 3961 03 30 40 03 32 05 =1654+866 04 31 47 27.6 360.0 12.0 0.5 85 3972 03 30 41 03 32 05 PSJ1721+8842 04 31 47 29.8 359.8 11.5 7.9 -11 3972 No stop 03 35 30 --- 04 35 13 29.8 359.8 11.5 7.0 194 3998 03 32 06 Schedule for TIANMA65 (Code T6 ) Page 16 Resolving a gravitationally lensed dual back-hole system at z = 2.37 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 ---------------------------------------------------------------------------------------- --- Sat 5 Jun 2021 Day 156 --- 03 35 30 J1639+8631 04 35 13 27.6 360.0-12.0 -0.4 -11 3998 No stop 03 37 00 =1654+866 04 36 43 27.6 360.1-11.9 -0.7 79 4010 03 35 31 03 37 00 PSJ1721+8842 04 36 43 29.8 359.8 11.6 6.6 -11 4010 No stop 03 40 25 --- 04 40 08 29.8 359.8 11.6 5.8 194 4036 03 37 01 03 41 10 J1639+8631 04 40 54 27.6 360.1-11.9 -1.7 34 4036 03 41 10 03 42 35 =1654+866 04 42 19 27.6 360.1-11.9 -2.1 85 4047 03 41 11 03 42 35 PSJ1721+8842 04 42 19 29.8 359.9 11.6 5.3 -11 4047 No stop 03 46 00 --- 04 45 44 29.8 359.9 11.7 4.4 194 4073 03 42 36 03 46 00 J1639+8631 04 45 44 27.6 360.2-11.8 -2.9 -11 4073 No stop 03 47 30 =1654+866 04 47 15 27.6 360.2-11.8 -3.3 79 4085 03 46 01 03 47 30 PSJ1721+8842 04 47 15 29.8 359.9 11.7 4.0 -11 4085 No stop 03 50 55 --- 04 50 40 29.8 359.9 11.8 3.2 194 4111 03 47 31 03 51 40 J1639+8631 04 51 25 27.6 360.3-11.7 -4.3 34 4111 03 51 40 03 53 05 =1654+866 04 52 51 27.6 360.3-11.7 -4.6 85 4122 03 51 41 03 53 05 PSJ1721+8842 04 52 51 29.8 359.9 11.8 2.7 -11 4122 No stop 03 56 30 --- 04 56 16 29.8 360.0 11.9 1.8 194 4149 03 53 06 03 56 30 J1639+8631 04 56 16 27.6 360.4-11.6 -5.5 -11 4149 No stop 03 58 00 =1654+866 04 57 46 27.6 360.4-11.6 -5.8 79 4160 03 56 31 03 58 00 PSJ1721+8842 04 57 46 29.8 360.0 11.9 1.5 -11 4160 No stop 04 01 25 --- 05 01 12 29.8 360.0 12.0 0.6 194 4187 03 58 01 04 02 10 J1639+8631 05 01 57 27.6 360.5-11.5 -6.8 34 4187 04 02 10 04 03 35 =1654+866 05 03 22 27.6 360.5-11.5 -7.2 85 4198 04 02 11 04 03 35 PSJ1721+8842 05 03 22 29.8 360.0 12.0 0.1 -11 4198 No stop 04 07 00 --- 05 06 48 29.8 360.0-11.9 -0.8 194 4224 04 03 36 04 07 00 J1639+8631 05 06 48 27.6 360.6-11.4 -8.0 -11 4224 No stop 04 08 30 =1654+866 05 08 18 27.6 360.6-11.4 -8.4 79 4236 04 07 01 04 13 30 3C84 05 13 19 65.2 302.9 1.9 106.0 146 4236 04 13 30 04 18 30 --- 05 18 20 64.3 302.3 2.0 104.6 300 4274 04 13 31 04 23 30 J1639+8631 05 23 21 27.7 360.9-11.2 -12.0 151 4274 04 23 30 04 28 30 =1654+866 05 28 21 27.7 360.9-11.1 -13.2 300 4313 04 23 31 Schedule for TIANMA65 (Code T6 ) Page 17 Resolving a gravitationally lensed dual back-hole system at z = 2.37 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 ---------------------------------------------------------------------------------------- --- Sat 5 Jun 2021 Day 156 --- 04 28 30 PSJ1721+8842 05 28 21 29.8 360.2-11.6 -6.1 -10 4313 No stop 04 31 55 --- 05 31 47 29.8 360.2-11.5 -6.9 195 4339 04 28 31 04 32 40 J1639+8631 05 32 32 27.7 361.0-11.0 -14.2 35 4339 04 32 40 04 34 05 =1654+866 05 33 57 27.7 361.0-11.0 -14.6 85 4350 04 32 41 04 34 05 PSJ1721+8842 05 33 57 29.8 360.2-11.5 -7.5 -10 4350 No stop 04 37 30 --- 05 37 23 29.8 360.2-11.4 -8.3 195 4377 04 34 06 04 37 30 J1639+8631 05 37 23 27.7 361.1-10.9 -15.4 -10 4377 No stop 04 39 00 =1654+866 05 38 53 27.7 361.1-10.9 -15.8 80 4388 04 37 31 04 39 00 PSJ1721+8842 05 38 53 29.8 360.2-11.4 -8.7 -10 4388 No stop 04 42 25 --- 05 42 19 29.8 360.3-11.4 -9.5 195 4415 04 39 01 04 43 10 J1639+8631 05 43 04 27.7 361.2-10.8 -16.8 35 4415 04 43 10 04 44 35 =1654+866 05 44 29 27.7 361.2-10.8 -17.1 85 4426 04 43 11 04 44 35 PSJ1721+8842 05 44 29 29.8 360.3-11.3 -10.1 -10 4426 No stop 04 48 00 --- 05 47 55 29.8 360.3-11.3 -10.9 195 4452 04 44 36 04 48 00 J1639+8631 05 47 55 27.8 361.3-10.8 -17.9 -10 4452 No stop 04 49 30 =1654+866 05 49 25 27.8 361.3-10.7 -18.3 80 4464 04 48 01 04 49 30 PSJ1721+8842 05 49 25 29.8 360.3-11.2 -11.3 -10 4464 No stop 04 52 55 --- 05 52 50 29.8 360.3-11.2 -12.1 195 4490 04 49 31 04 53 40 J1639+8631 05 53 35 27.8 361.4-10.7 -19.3 35 4490 04 53 40 04 55 05 =1654+866 05 55 01 27.8 361.4-10.6 -19.7 85 4501 04 53 41 04 55 05 PSJ1721+8842 05 55 01 29.8 360.3-11.1 -12.7 -10 4501 No stop 04 58 30 --- 05 58 26 29.8 360.4-11.1 -13.5 195 4527 04 55 06 04 58 30 J1639+8631 05 58 26 27.8 361.4-10.6 -20.5 -10 4527 No stop 05 00 00 =1654+866 05 59 57 27.8 361.5-10.6 -20.8 80 4539 04 58 31 05 00 00 PSJ1721+8842 05 59 57 29.8 360.4-11.1 -13.9 -10 4539 No stop 05 03 25 --- 06 03 22 29.8 360.4-11.0 -14.7 195 4565 05 00 01 05 04 10 J1639+8631 06 04 07 27.8 361.5-10.5 -21.9 35 4565 05 04 10 05 05 35 =1654+866 06 05 32 27.9 361.5-10.5 -22.2 85 4576 05 04 11 05 05 35 PSJ1721+8842 06 05 32 29.8 360.4-11.0 -15.3 -10 4576 No stop 05 09 00 --- 06 08 58 29.8 360.4-10.9 -16.1 195 4603 05 05 36 Schedule for TIANMA65 (Code T6 ) Page 18 Resolving a gravitationally lensed dual back-hole system at z = 2.37 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 ---------------------------------------------------------------------------------------- --- Sat 5 Jun 2021 Day 156 --- 05 09 00 J1639+8631 06 08 58 27.9 361.6-10.4 -23.0 -10 4603 No stop 05 10 30 =1654+866 06 10 28 27.9 361.6-10.4 -23.4 80 4614 05 09 01 05 10 30 PSJ1721+8842 06 10 28 29.8 360.4-10.9 -16.5 -10 4614 No stop 05 13 55 --- 06 13 54 29.8 360.5-10.8 -17.3 195 4641 05 10 31 05 14 40 J1639+8631 06 14 39 27.9 361.7-10.3 -24.4 35 4641 05 14 40 05 16 05 =1654+866 06 16 04 27.9 361.7-10.3 -24.8 85 4652 05 14 41 05 16 05 PSJ1721+8842 06 16 04 29.8 360.5-10.8 -17.9 -10 4652 No stop 05 19 30 --- 06 19 30 29.8 360.5-10.7 -18.7 195 4678 05 16 06 05 19 30 J1639+8631 06 19 30 27.9 361.8-10.2 -25.6 -10 4678 No stop 05 21 00 =1654+866 06 21 00 27.9 361.8-10.2 -25.9 80 4690 05 19 31 05 21 00 PSJ1721+8842 06 21 00 29.8 360.5-10.7 -19.1 -10 4690 No stop 05 24 25 --- 06 24 26 29.9 360.5-10.7 -19.9 195 4716 05 21 01 05 25 10 J1639+8631 06 25 11 28.0 361.9-10.1 -27.0 35 4716 05 25 10 05 26 35 =1654+866 06 26 36 28.0 361.9-10.1 -27.3 85 4727 05 25 11 05 26 35 PSJ1721+8842 06 26 36 29.9 360.5-10.6 -20.5 -9 4727 No stop 05 30 00 --- 06 30 01 29.9 360.6-10.6 -21.3 196 4753 05 26 36 05 30 00 J1639+8631 06 30 01 28.0 361.9-10.1 -28.1 -9 4753 No stop 05 31 30 =1654+866 06 31 32 28.0 362.0-10.0 -28.5 81 4765 05 30 01 05 31 30 PSJ1721+8842 06 31 32 29.9 360.6-10.5 -21.7 -9 4765 No stop 05 34 55 --- 06 34 57 29.9 360.6-10.5 -22.5 196 4791 05 31 31 05 35 40 J1639+8631 06 35 42 28.1 362.0-10.0 -29.5 36 4791 05 35 40 05 37 05 =1654+866 06 37 08 28.1 362.0 -9.9 -29.9 85 4802 05 35 41 05 37 05 PSJ1721+8842 06 37 08 29.9 360.6-10.4 -23.1 -9 4802 No stop 05 40 30 --- 06 40 33 29.9 360.6-10.4 -23.9 196 4829 05 37 06 05 40 30 J1639+8631 06 40 33 28.1 362.1 -9.9 -30.7 -9 4829 No stop 05 42 00 =1654+866 06 42 03 28.1 362.1 -9.9 -31.0 81 4840 05 40 31 05 42 00 PSJ1721+8842 06 42 03 29.9 360.6-10.4 -24.3 -9 4840 No stop 05 45 25 --- 06 45 29 29.9 360.7-10.3 -25.1 196 4867 05 42 01 05 46 10 J1639+8631 06 46 14 28.1 362.2 -9.8 -32.1 36 4867 05 46 10 05 47 35 =1654+866 06 47 39 28.1 362.2 -9.8 -32.4 85 4878 05 46 11 Schedule for TIANMA65 (Code T6 ) Page 19 Resolving a gravitationally lensed dual back-hole system at z = 2.37 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 ---------------------------------------------------------------------------------------- --- Sat 5 Jun 2021 Day 156 --- 05 47 35 PSJ1721+8842 06 47 39 29.9 360.7-10.3 -25.7 -9 4878 No stop 05 51 00 --- 06 51 05 29.9 360.7-10.2 -26.5 196 4904 05 47 36 05 51 00 J1639+8631 06 51 05 28.2 362.2 -9.7 -33.2 -9 4904 No stop 05 52 30 =1654+866 06 52 35 28.2 362.3 -9.7 -33.6 81 4916 05 51 01 05 52 30 PSJ1721+8842 06 52 35 29.9 360.7-10.2 -26.9 -9 4916 No stop 05 55 55 --- 06 56 01 29.9 360.7-10.1 -27.7 196 4942 05 52 31 05 56 35 J1639+8631 06 56 41 28.2 362.3 -9.6 -34.6 31 4942 05 56 35 05 58 00 =1654+866 06 58 06 28.2 362.3 -9.6 -34.9 85 4953 05 56 36 05 58 00 PSJ1721+8842 06 58 06 29.9 360.7-10.1 -28.2 -9 4953 No stop 06 00 00 --- 07 00 06 29.9 360.7-10.1 -28.7 111 4969 05 58 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess221.L1024 --- WARNING --- This group does not match an entry in the frequency catalog. This might be ok because the catalog is not complete. But be very careful to be sure that the setup is correct. Setup group: 13 Station: TIANMA65 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= 2270.00 2270.00 2270.00 2270.00 2270.00 2270.00 2270.00 2270.00 Net SB= L L U U L L U U IF SB = L L L L L L L L Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 5 1 5 2 6 2 6 BBC SB= U U L L U U L L IF = A4 B3 A4 B3 A4 B3 A4 B3 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= 643.51 643.51 643.51 643.51 579.51 579.51 579.51 579.51 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) * PSJ1721+8842 18 08 47.084813 * 17 21 43.936000 17 03 39.358204 0.00 88 43 26.13207 * 88 42 21.42800 88 40 50.86305 0.00 From catalog imbedded in main SCHED input file. * 3C84 03 16 29.567265 * 03 19 48.160096 03 21 10.455581 1.50 J0319+4130 41 19 51.91692 * 41 30 42.10404 41 35 07.95163 2.86 0316+413 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc J0319+41 GSFC 2016a X/S astro solution, 10291 observations. 1654+866 16 54 31.289232 * 16 39 25.014806 16 33 40.945152 10.77 * J1639+8631 86 37 07.15444 * 86 31 53.13177 86 29 21.91471 0.62 J1639+86 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 43 observations. * 3C345 16 41 17.606229 * 16 42 58.809967 16 43 43.280984 0.79 J1642+3948 39 54 10.81492 * 39 48 36.99399 39 46 14.84933 0.59 1641+399 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc J1642+39 GSFC 2016a X/S astro solution, 53724 observations. * 3C454.3 22 51 29.519739 * 22 53 57.747939 22 55 00.276064 0.65 J2253+1608 15 52 54.34808 * 16 08 53.56091 16 15 30.58628 0.73 2251+158 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc J2253+16 GSFC 2016a X/S astro solution, 41272 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 PSJ1721+884sess221.L1024 1 2 3 4 5 6 7 8 9 12 13 14 7.151 951.186 3C84 sess221.L1024 1 2 3 4 5 6 7 8 9 12 13 14 0.083 11.593 J1639+8631 sess221.L1024 1 2 3 4 5 6 7 8 9 12 13 14 3.313 413.872 3C345 sess221.L1024 1 2 3 4 5 6 7 8 9 12 13 14 0.083 12.750 3C454.3 sess221.L1024 1 2 3 4 5 6 7 8 9 12 13 14 0.083 11.639 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) PSJ1721+8842 68.8 3C84 27.1 J1639+8631 71.0 3C345 117.6 3C454.3 83.4 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