COVER INFORMATION Station: DEFFORD (Code De ) 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 DEFFORD (Code De ) 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 Next BBC frequencies: 645.51 645.51 Next scan bandwidths: 64.00 64.00 18 00 00 J1639+8631 10 45 01 52.1 5.7 -5.8 -88.3 0 0 18 00 00 18 01 30 =1654+866 10 46 31 52.2 5.7 -5.8 -88.7 90 6 18 00 01 18 01 30 PSJ1721+8842 10 46 31 52.0 2.1 -6.3 -84.0 -32 6 No stop 18 04 55 --- 10 49 57 52.0 2.1 -6.2 -84.9 173 19 18 01 31 18 05 40 J1639+8631 10 50 42 52.2 5.7 -5.7 -89.7 13 19 18 05 40 18 07 05 =1654+866 10 52 07 52.2 5.7 -5.7 -90.1 85 24 18 05 41 18 07 05 PSJ1721+8842 10 52 07 52.0 2.1 -6.2 -85.4 -32 24 No stop 18 10 30 --- 10 55 33 52.0 2.1 -6.1 -86.3 173 38 18 07 06 18 10 30 J1639+8631 10 55 33 52.3 5.7 -5.6 -90.9 -32 38 No stop 18 12 00 =1654+866 10 57 03 52.3 5.7 -5.6 -91.3 58 43 18 10 31 18 12 00 PSJ1721+8842 10 57 03 52.0 2.1 -6.1 -86.7 -32 43 No stop 18 15 25 --- 11 00 28 52.1 2.1 -6.1 -87.5 173 57 18 12 01 18 16 10 J1639+8631 11 01 13 52.4 5.7 -5.5 -92.4 13 57 18 16 10 18 17 35 =1654+866 11 02 39 52.4 5.7 -5.5 -92.7 85 62 18 16 11 18 17 35 PSJ1721+8842 11 02 39 52.1 2.1 -6.0 -88.1 -32 62 No stop 18 21 00 --- 11 06 04 52.1 2.1 -6.0 -88.9 173 75 18 17 36 18 21 00 J1639+8631 11 06 04 52.5 5.7 -5.5 -93.6 -32 75 No stop 18 22 30 =1654+866 11 07 34 52.5 5.7 -5.4 -94.0 58 81 18 21 01 18 22 30 PSJ1721+8842 11 07 34 52.1 2.1 -5.9 -89.3 -32 81 No stop 18 25 55 --- 11 11 00 52.1 2.1 -5.9 -90.1 173 94 18 22 31 18 26 40 J1639+8631 11 11 45 52.5 5.7 -5.4 -95.0 13 94 18 26 40 18 28 05 =1654+866 11 13 10 52.6 5.7 -5.3 -95.4 85 100 18 26 41 18 28 05 PSJ1721+8842 11 13 10 52.1 2.1 -5.8 -90.7 -32 100 No stop 18 31 30 --- 11 16 36 52.2 2.1 -5.8 -91.5 173 113 18 28 06 18 31 30 J1639+8631 11 16 36 52.6 5.7 -5.3 -96.2 -32 113 No stop 18 33 00 =1654+866 11 18 06 52.6 5.7 -5.3 -96.6 58 119 18 31 31 18 33 00 PSJ1721+8842 11 18 06 52.2 2.1 -5.8 -91.9 -32 119 No stop 18 36 25 --- 11 21 32 52.2 2.1 -5.7 -92.8 173 132 18 33 01 Schedule for DEFFORD (Code De ) 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 11 22 17 52.7 5.7 -5.2 -97.7 13 132 18 37 10 18 38 35 =1654+866 11 23 42 52.7 5.7 -5.2 -98.0 85 138 18 37 11 18 38 35 PSJ1721+8842 11 23 42 52.2 2.1 -5.7 -93.3 -32 138 No stop 18 42 00 --- 11 27 08 52.2 2.1 -5.6 -94.2 173 151 18 38 36 18 42 00 J1639+8631 11 27 08 52.8 5.7 -5.1 -98.9 -32 151 No stop 18 43 30 =1654+866 11 28 38 52.8 5.6 -5.1 -99.3 58 157 18 42 01 18 43 30 PSJ1721+8842 11 28 38 52.2 2.1 -5.6 -94.6 -32 157 No stop 18 46 55 --- 11 32 03 52.2 2.1 -5.5 -95.4 173 170 18 43 31 18 47 40 J1639+8631 11 32 49 52.9 5.6 -5.0 -100.3 13 170 18 47 40 18 49 05 =1654+866 11 34 14 52.9 5.6 -5.0 -100.7 85 175 18 47 41 18 49 05 PSJ1721+8842 11 34 14 52.3 2.1 -5.5 -96.0 -32 175 No stop 18 52 30 --- 11 37 39 52.3 2.1 -5.4 -96.8 173 188 18 49 06 18 52 30 J1639+8631 11 37 39 52.9 5.6 -4.9 -101.5 -31 188 No stop 18 54 00 =1654+866 11 39 10 53.0 5.6 -4.9 -101.9 59 194 18 52 31 18 54 00 PSJ1721+8842 11 39 10 52.3 2.1 -5.4 -97.2 -31 194 No stop 18 57 25 --- 11 42 35 52.3 2.1 -5.4 -98.1 174 207 18 54 01 18 58 10 J1639+8631 11 43 20 53.0 5.6 -4.8 -103.0 14 207 18 58 10 18 59 35 =1654+866 11 44 46 53.0 5.6 -4.8 -103.3 85 213 18 58 11 18 59 35 PSJ1721+8842 11 44 46 52.3 2.1 -5.3 -98.6 -31 213 No stop 19 03 00 --- 11 48 11 52.3 2.1 -5.3 -99.5 174 226 18 59 36 19 03 00 J1639+8631 11 48 11 53.1 5.5 -4.8 -104.2 -31 226 No stop 19 04 30 =1654+866 11 49 41 53.1 5.5 -4.7 -104.6 59 232 19 03 01 19 04 30 PSJ1721+8842 11 49 41 52.3 2.1 -5.2 -99.8 -31 232 No stop 19 07 55 --- 11 53 07 52.4 2.1 -5.2 -100.7 174 245 19 04 31 19 08 40 J1639+8631 11 53 52 53.2 5.5 -4.7 -105.7 14 245 19 08 40 19 10 05 =1654+866 11 55 17 53.2 5.5 -4.6 -106.0 85 251 19 08 41 19 10 05 PSJ1721+8842 11 55 17 52.4 2.1 -5.1 -101.2 -31 251 No stop 19 13 30 --- 11 58 43 52.4 2.1 -5.1 -102.1 174 264 19 10 06 19 13 30 J1639+8631 11 58 43 53.2 5.5 -4.6 -106.9 -31 264 No stop 19 15 00 =1654+866 12 00 13 53.3 5.5 -4.6 -107.3 59 270 19 13 31 Schedule for DEFFORD (Code De ) 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 12 00 13 52.4 2.1 -5.1 -102.5 -31 270 No stop 19 18 25 --- 12 03 39 52.4 2.1 -5.0 -103.3 174 283 19 15 01 19 19 10 J1639+8631 12 04 24 53.3 5.4 -4.5 -108.4 14 283 19 19 10 19 20 35 =1654+866 12 05 49 53.4 5.4 -4.5 -108.7 85 288 19 19 11 19 20 35 PSJ1721+8842 12 05 49 52.4 2.1 -5.0 -103.9 -31 288 No stop 19 24 00 --- 12 09 15 52.5 2.1 -4.9 -104.8 174 301 19 20 36 19 24 00 J1639+8631 12 09 15 53.4 5.4 -4.4 -109.6 -31 301 No stop 19 25 30 =1654+866 12 10 45 53.4 5.4 -4.4 -110.0 59 307 19 24 01 19 30 30 3C345 12 15 46 43.6 77.6 -4.5 -51.3 61 307 19 30 30 19 35 30 --- 12 20 46 44.3 78.4 -4.4 -51.5 300 327 19 30 31 19 40 30 J1639+8631 12 25 47 53.6 5.2 -4.1 -113.9 58 327 19 40 30 19 45 30 =1654+866 12 30 48 53.7 5.2 -4.0 -115.1 300 346 19 40 31 19 45 30 PSJ1721+8842 12 30 48 52.6 2.0 -4.5 -110.2 -30 346 No stop 19 48 55 --- 12 34 14 52.6 2.0 -4.5 -111.1 175 359 19 45 31 19 49 40 J1639+8631 12 34 59 53.8 5.1 -4.0 -116.2 15 359 19 49 40 19 51 05 =1654+866 12 36 24 53.8 5.1 -4.0 -116.6 85 365 19 49 41 19 51 05 PSJ1721+8842 12 36 24 52.6 2.0 -4.5 -111.6 -30 365 No stop 19 54 30 --- 12 39 50 52.6 2.0 -4.4 -112.5 175 378 19 51 06 19 54 30 J1639+8631 12 39 50 53.8 5.1 -3.9 -117.5 -30 378 No stop 19 56 00 =1654+866 12 41 20 53.9 5.1 -3.9 -117.9 60 384 19 54 31 19 56 00 PSJ1721+8842 12 41 20 52.6 2.0 -4.4 -112.9 -30 384 No stop 19 59 25 --- 12 44 45 52.6 2.0 -4.3 -113.7 175 397 19 56 01 20 00 10 J1639+8631 12 45 31 53.9 5.0 -3.8 -119.0 15 397 20 00 10 20 01 35 =1654+866 12 46 56 53.9 5.0 -3.8 -119.3 85 402 20 00 11 20 01 35 PSJ1721+8842 12 46 56 52.7 2.0 -4.3 -114.3 -30 402 No stop 20 05 00 --- 12 50 21 52.7 1.9 -4.2 -115.1 175 415 20 01 36 20 05 00 J1639+8631 12 50 21 54.0 4.9 -3.7 -120.2 -29 415 No stop 20 06 30 =1654+866 12 51 52 54.0 4.9 -3.7 -120.6 61 421 20 05 01 20 06 30 PSJ1721+8842 12 51 52 52.7 1.9 -4.2 -115.5 -29 421 No stop 20 09 55 --- 12 55 17 52.7 1.9 -4.1 -116.4 176 434 20 06 31 Schedule for DEFFORD (Code De ) 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 12 56 02 54.0 4.9 -3.6 -121.7 16 434 20 10 40 20 12 05 =1654+866 12 57 27 54.1 4.8 -3.6 -122.1 85 440 20 10 41 20 12 05 PSJ1721+8842 12 57 27 52.7 1.9 -4.1 -116.9 -29 440 No stop 20 15 30 --- 13 00 53 52.7 1.9 -4.0 -117.8 176 453 20 12 06 20 15 30 J1639+8631 13 00 53 54.1 4.8 -3.5 -123.0 -29 453 No stop 20 17 00 =1654+866 13 02 23 54.1 4.8 -3.5 -123.4 61 459 20 15 31 20 17 00 PSJ1721+8842 13 02 23 52.7 1.9 -4.0 -118.2 -29 459 No stop 20 20 25 --- 13 05 49 52.8 1.9 -4.0 -119.1 176 472 20 17 01 20 21 10 J1639+8631 13 06 34 54.2 4.7 -3.5 -124.4 16 472 20 21 10 20 22 35 =1654+866 13 07 59 54.2 4.7 -3.4 -124.8 85 478 20 21 11 20 22 35 PSJ1721+8842 13 07 59 52.8 1.9 -3.9 -119.6 -29 478 No stop 20 26 00 --- 13 11 25 52.8 1.9 -3.9 -120.5 176 491 20 22 36 20 26 00 J1639+8631 13 11 25 54.2 4.6 -3.4 -125.7 -28 491 No stop 20 27 30 =1654+866 13 12 55 54.3 4.6 -3.3 -126.1 62 497 20 26 01 20 27 30 PSJ1721+8842 13 12 55 52.8 1.8 -3.8 -120.9 -28 497 No stop 20 30 55 --- 13 16 21 52.8 1.8 -3.8 -121.7 177 510 20 27 31 20 31 40 J1639+8631 13 17 06 54.3 4.6 -3.3 -127.2 17 510 20 31 40 20 33 05 =1654+866 13 18 31 54.3 4.5 -3.3 -127.6 85 515 20 31 41 20 33 05 PSJ1721+8842 13 18 31 52.8 1.8 -3.8 -122.3 -28 515 No stop 20 36 30 --- 13 21 56 52.8 1.8 -3.7 -123.1 177 528 20 33 06 20 36 30 J1639+8631 13 21 56 54.4 4.5 -3.2 -128.5 -28 528 No stop 20 38 00 =1654+866 13 23 27 54.4 4.5 -3.2 -128.9 62 534 20 36 31 20 38 00 PSJ1721+8842 13 23 27 52.8 1.8 -3.7 -123.5 -28 534 No stop 20 41 25 --- 13 26 52 52.9 1.8 -3.6 -124.4 177 547 20 38 01 20 42 10 J1639+8631 13 27 37 54.4 4.4 -3.1 -130.0 17 547 20 42 10 20 43 35 =1654+866 13 29 03 54.5 4.4 -3.1 -130.3 85 553 20 42 11 20 43 35 PSJ1721+8842 13 29 03 52.9 1.8 -3.6 -125.0 -27 553 No stop 20 47 00 --- 13 32 28 52.9 1.7 -3.5 -125.8 178 566 20 43 36 20 47 00 J1639+8631 13 32 28 54.5 4.3 -3.0 -131.2 -27 566 No stop 20 48 30 =1654+866 13 33 58 54.5 4.3 -3.0 -131.6 63 572 20 47 01 Schedule for DEFFORD (Code De ) 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 13 33 58 52.9 1.7 -3.5 -126.2 -27 572 No stop 20 51 55 --- 13 37 24 52.9 1.7 -3.4 -127.1 178 585 20 48 31 20 52 40 J1639+8631 13 38 09 54.6 4.2 -2.9 -132.7 18 585 20 52 40 20 54 05 =1654+866 13 39 34 54.6 4.2 -2.9 -133.1 85 591 20 52 41 20 54 05 PSJ1721+8842 13 39 34 52.9 1.7 -3.4 -127.6 -27 591 No stop 20 57 30 --- 13 43 00 52.9 1.7 -3.3 -128.5 178 604 20 54 06 20 57 30 J1639+8631 13 43 00 54.6 4.1 -2.8 -134.0 -27 604 No stop 20 59 00 =1654+866 13 44 30 54.6 4.1 -2.8 -134.4 63 610 20 57 31 20 59 00 PSJ1721+8842 13 44 30 52.9 1.7 -3.3 -128.9 -27 610 No stop 21 02 25 --- 13 47 56 53.0 1.7 -3.3 -129.8 178 623 20 59 01 21 03 10 J1639+8631 13 48 41 54.7 4.0 -2.8 -135.5 19 623 21 03 10 21 04 35 =1654+866 13 50 06 54.7 4.0 -2.7 -135.9 85 628 21 03 11 21 04 35 PSJ1721+8842 13 50 06 53.0 1.6 -3.2 -130.3 -26 628 No stop 21 08 00 --- 13 53 32 53.0 1.6 -3.2 -131.2 179 642 21 04 36 21 08 00 J1639+8631 13 53 32 54.7 3.9 -2.7 -136.8 -26 642 No stop 21 09 30 =1654+866 13 55 02 54.7 3.9 -2.6 -137.2 64 647 21 08 01 21 09 30 PSJ1721+8842 13 55 02 53.0 1.6 -3.1 -131.6 -26 647 No stop 21 12 55 --- 13 58 27 53.0 1.6 -3.1 -132.4 179 661 21 09 31 21 13 40 J1639+8631 13 59 13 54.8 3.8 -2.6 -138.3 19 661 21 13 40 21 15 05 =1654+866 14 00 38 54.8 3.8 -2.6 -138.7 85 666 21 13 41 21 15 05 PSJ1721+8842 14 00 38 53.0 1.6 -3.1 -133.0 -25 666 No stop 21 18 30 --- 14 04 03 53.0 1.5 -3.0 -133.9 180 679 21 15 06 21 18 30 J1639+8631 14 04 03 54.8 3.7 -2.5 -139.6 -25 679 No stop 21 20 00 =1654+866 14 05 34 54.8 3.7 -2.5 -140.0 65 685 21 18 31 21 20 00 PSJ1721+8842 14 05 34 53.0 1.5 -3.0 -134.3 -25 685 No stop 21 23 25 --- 14 08 59 53.0 1.5 -2.9 -135.1 180 698 21 20 01 21 24 10 J1639+8631 14 09 44 54.9 3.6 -2.4 -141.1 20 698 21 24 10 21 25 35 =1654+866 14 11 10 54.9 3.6 -2.4 -141.5 85 704 21 24 11 21 25 35 PSJ1721+8842 14 11 10 53.1 1.5 -2.9 -135.7 -25 704 No stop 21 29 00 --- 14 14 35 53.1 1.5 -2.8 -136.6 180 717 21 25 36 Schedule for DEFFORD (Code De ) 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 14 14 35 54.9 3.5 -2.3 -142.4 -24 717 No stop 21 30 30 =1654+866 14 16 05 54.9 3.5 -2.3 -142.8 66 723 21 29 01 21 30 30 PSJ1721+8842 14 16 05 53.1 1.5 -2.8 -136.9 -24 723 No stop 21 33 55 --- 14 19 31 53.1 1.4 -2.7 -137.8 181 736 21 30 31 21 34 40 J1639+8631 14 20 16 55.0 3.4 -2.2 -143.9 21 736 21 34 40 21 36 05 =1654+866 14 21 41 55.0 3.3 -2.2 -144.3 85 741 21 34 41 21 36 05 PSJ1721+8842 14 21 41 53.1 1.4 -2.7 -138.4 -24 741 No stop 21 39 30 --- 14 25 07 53.1 1.4 -2.6 -139.3 181 755 21 36 06 21 39 30 J1639+8631 14 25 07 55.0 3.3 -2.1 -145.2 -24 755 No stop 21 41 00 =1654+866 14 26 37 55.0 3.2 -2.1 -145.6 66 760 21 39 31 21 41 00 PSJ1721+8842 14 26 37 53.1 1.4 -2.6 -139.6 -24 760 No stop 21 44 25 --- 14 30 03 53.1 1.4 -2.6 -140.5 181 774 21 41 01 21 45 10 J1639+8631 14 30 48 55.1 3.1 -2.0 -146.8 21 774 21 45 10 21 46 35 =1654+866 14 32 13 55.1 3.1 -2.0 -147.1 85 779 21 45 11 21 46 35 PSJ1721+8842 14 32 13 53.1 1.3 -2.5 -141.1 -24 779 No stop 21 50 00 --- 14 35 39 53.1 1.3 -2.5 -141.9 181 792 21 46 36 21 50 00 J1639+8631 14 35 39 55.1 3.0 -2.0 -148.1 -24 792 No stop 21 51 30 =1654+866 14 37 09 55.1 3.0 -1.9 -148.5 66 798 21 50 01 21 51 30 PSJ1721+8842 14 37 09 53.2 1.3 -2.4 -142.3 -24 798 No stop 21 54 55 --- 14 40 34 53.2 1.3 -2.4 -143.2 181 811 21 51 31 21 55 40 J1639+8631 14 41 19 55.2 2.9 -1.9 -149.6 21 811 21 55 40 21 57 05 =1654+866 14 42 45 55.2 2.9 -1.8 -150.0 85 817 21 55 41 21 57 05 PSJ1721+8842 14 42 45 53.2 1.3 -2.3 -143.8 -24 817 No stop 22 00 30 --- 14 46 10 53.2 1.2 -2.3 -144.6 181 830 21 57 06 22 00 30 J1639+8631 14 46 10 55.2 2.8 -1.8 -150.9 -24 830 No stop 22 02 00 =1654+866 14 47 41 55.2 2.7 -1.8 -151.3 66 836 22 00 31 22 02 00 PSJ1721+8842 14 47 41 53.2 1.2 -2.3 -145.0 -24 836 No stop 22 05 25 --- 14 51 06 53.2 1.2 -2.2 -145.9 181 849 22 02 01 22 06 10 J1639+8631 14 51 51 55.2 2.6 -1.7 -152.4 20 849 22 06 10 22 07 35 =1654+866 14 53 16 55.3 2.6 -1.7 -152.8 85 854 22 06 11 Schedule for DEFFORD (Code De ) 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 14 53 16 53.2 1.2 -2.2 -146.5 -25 854 No stop 22 11 00 --- 14 56 42 53.2 1.2 -2.1 -147.3 180 868 22 07 36 22 11 00 J1639+8631 14 56 42 55.3 2.5 -1.6 -153.7 -25 868 No stop 22 12 30 =1654+866 14 58 12 55.3 2.5 -1.6 -154.1 65 873 22 11 01 22 12 30 PSJ1721+8842 14 58 12 53.2 1.1 -2.1 -147.7 -25 873 No stop 22 15 55 --- 15 01 38 53.2 1.1 -2.0 -148.6 180 887 22 12 31 22 16 40 J1639+8631 15 02 23 55.3 2.4 -1.5 -155.2 20 887 22 16 40 22 18 05 =1654+866 15 03 48 55.3 2.4 -1.5 -155.6 85 892 22 16 41 22 18 05 PSJ1721+8842 15 03 48 53.2 1.1 -2.0 -149.2 -25 892 No stop 22 21 30 --- 15 07 14 53.2 1.1 -1.9 -150.0 180 905 22 18 06 22 21 30 J1639+8631 15 07 14 55.3 2.3 -1.4 -156.6 -25 905 No stop 22 23 00 =1654+866 15 08 44 55.4 2.2 -1.4 -157.0 65 911 22 21 31 22 23 00 PSJ1721+8842 15 08 44 53.3 1.1 -1.9 -150.4 -25 911 No stop 22 26 25 --- 15 12 10 53.3 1.0 -1.9 -151.3 180 924 22 23 01 22 27 10 J1639+8631 15 12 55 55.4 2.1 -1.3 -158.1 20 924 22 27 10 22 28 35 =1654+866 15 14 20 55.4 2.1 -1.3 -158.5 85 930 22 27 11 22 28 35 PSJ1721+8842 15 14 20 53.3 1.0 -1.8 -151.9 -25 930 No stop 22 32 00 --- 15 17 45 53.3 1.0 -1.8 -152.7 180 943 22 28 36 22 32 00 J1639+8631 15 17 45 55.4 2.0 -1.3 -159.4 -25 943 No stop 22 33 30 =1654+866 15 19 16 55.4 2.0 -1.2 -159.8 65 949 22 32 01 22 33 30 PSJ1721+8842 15 19 16 53.3 1.0 -1.7 -153.1 -25 949 No stop 22 36 55 --- 15 22 41 53.3 0.9 -1.7 -154.0 180 962 22 33 31 22 37 40 J1639+8631 15 23 26 55.4 1.9 -1.2 -160.9 20 962 22 37 40 22 39 05 =1654+866 15 24 52 55.4 1.8 -1.1 -161.3 85 967 22 37 41 22 39 05 PSJ1721+8842 15 24 52 53.3 0.9 -1.6 -154.6 -25 967 No stop 22 42 30 --- 15 28 17 53.3 0.9 -1.6 -155.4 180 981 22 39 06 22 42 30 J1639+8631 15 28 17 55.5 1.7 -1.1 -162.2 -25 981 No stop 22 44 00 =1654+866 15 29 47 55.5 1.7 -1.1 -162.7 65 986 22 42 31 22 44 00 PSJ1721+8842 15 29 47 53.3 0.9 -1.6 -155.8 -25 986 No stop 22 47 25 --- 15 33 13 53.3 0.8 -1.5 -156.7 180 1000 22 44 01 Schedule for DEFFORD (Code De ) 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 15 33 58 55.5 1.6 -1.0 -163.8 20 1000 22 48 10 22 49 35 =1654+866 15 35 23 55.5 1.6 -1.0 -164.2 85 1005 22 48 11 22 49 35 PSJ1721+8842 15 35 23 53.3 0.8 -1.5 -157.3 -25 1005 No stop 22 53 00 --- 15 38 49 53.3 0.8 -1.4 -158.2 180 1018 22 49 36 22 53 00 J1639+8631 15 38 49 55.5 1.5 -0.9 -165.1 -25 1018 No stop 22 54 30 =1654+866 15 40 19 55.5 1.4 -0.9 -165.5 65 1024 22 53 01 22 54 30 PSJ1721+8842 15 40 19 53.3 0.8 -1.4 -158.5 -25 1024 No stop 22 57 55 --- 15 43 45 53.3 0.8 -1.3 -159.4 180 1037 22 54 31 22 58 40 J1639+8631 15 44 30 55.5 1.3 -0.8 -166.6 20 1037 22 58 40 23 00 05 =1654+866 15 45 55 55.5 1.3 -0.8 -167.0 85 1043 22 58 41 23 00 05 PSJ1721+8842 15 45 55 53.3 0.7 -1.3 -160.0 -25 1043 No stop 23 03 30 --- 15 49 21 53.3 0.7 -1.2 -160.9 180 1056 23 00 06 23 03 30 J1639+8631 15 49 21 55.5 1.2 -0.7 -168.0 -25 1056 No stop 23 05 00 =1654+866 15 50 51 55.5 1.2 -0.7 -168.4 65 1062 23 03 31 23 05 00 PSJ1721+8842 15 50 51 53.4 0.7 -1.2 -161.2 -25 1062 No stop 23 08 25 --- 15 54 16 53.4 0.7 -1.2 -162.1 180 1075 23 05 01 23 09 10 J1639+8631 15 55 02 55.6 1.0 -0.6 -169.5 20 1075 23 09 10 23 10 35 =1654+866 15 56 27 55.6 1.0 -0.6 -169.9 85 1080 23 09 11 23 10 35 PSJ1721+8842 15 56 27 53.4 0.6 -1.1 -162.7 -25 1080 No stop 23 14 00 --- 15 59 52 53.4 0.6 -1.1 -163.6 180 1094 23 10 36 23 14 00 J1639+8631 15 59 52 55.6 0.9 -0.6 -170.8 -25 1094 No stop 23 15 30 =1654+866 16 01 23 55.6 0.9 -0.5 -171.2 65 1099 23 14 01 23 15 30 PSJ1721+8842 16 01 23 53.4 0.6 -1.0 -164.0 -25 1099 No stop 23 18 55 --- 16 04 48 53.4 0.6 -1.0 -164.8 180 1113 23 15 31 23 19 40 J1639+8631 16 05 33 55.6 0.8 -0.5 -172.4 20 1113 23 19 40 23 21 05 =1654+866 16 06 59 55.6 0.7 -0.4 -172.7 85 1118 23 19 41 23 21 05 PSJ1721+8842 16 06 59 53.4 0.5 -0.9 -165.4 -25 1118 No stop 23 24 30 --- 16 10 24 53.4 0.5 -0.9 -166.3 180 1131 23 21 06 23 24 30 J1639+8631 16 10 24 55.6 0.6 -0.4 -173.7 -25 1131 No stop 23 26 00 =1654+866 16 11 54 55.6 0.6 -0.4 -174.1 65 1137 23 24 31 Schedule for DEFFORD (Code De ) 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 16 11 54 53.4 0.5 -0.9 -166.7 -25 1137 No stop 23 29 25 --- 16 15 20 53.4 0.5 -0.8 -167.6 180 1150 23 26 01 23 30 10 J1639+8631 16 16 05 55.6 0.5 -0.3 -175.2 19 1150 23 30 10 23 31 35 =1654+866 16 17 30 55.6 0.4 -0.3 -175.6 85 1156 23 30 11 23 31 35 PSJ1721+8842 16 17 30 53.4 0.4 -0.8 -168.1 -25 1156 No stop 23 35 00 --- 16 20 56 53.4 0.4 -0.7 -169.0 180 1169 23 31 36 23 35 00 J1639+8631 16 20 56 55.6 0.3 -0.2 -176.5 -26 1169 No stop 23 36 30 =1654+866 16 22 26 55.6 0.3 -0.2 -176.9 64 1175 23 35 01 23 36 30 PSJ1721+8842 16 22 26 53.4 0.4 -0.7 -169.4 -25 1175 No stop 23 39 55 --- 16 25 52 53.4 0.4 -0.6 -170.3 180 1188 23 36 31 23 40 40 J1639+8631 16 26 37 55.6 0.2 -0.1 -178.1 20 1188 23 40 40 23 42 05 =1654+866 16 28 02 55.6 0.2 -0.1 -178.5 85 1194 23 40 41 23 42 05 PSJ1721+8842 16 28 02 53.4 0.3 -0.6 -170.8 -25 1194 No stop 23 45 30 --- 16 31 28 53.4 0.3 -0.5 -171.7 180 1207 23 42 06 23 45 30 J1639+8631 16 31 28 55.6 0.1 -0.0 -179.4 -25 1207 No stop 23 47 00 =1654+866 16 32 58 55.6 0.0 -0.0 -179.8 65 1213 23 45 31 23 47 00 PSJ1721+8842 16 32 58 53.4 0.3 -0.5 -172.1 -25 1213 No stop 23 50 25 --- 16 36 23 53.4 0.3 -0.5 -173.0 180 1226 23 47 01 23 51 10 J1639+8631 16 37 08 55.6 -0.1 0.1 179.1 20 1226 23 51 10 23 52 35 =1654+866 16 38 34 55.6 -0.1 0.1 178.7 85 1231 23 51 11 23 52 35 PSJ1721+8842 16 38 34 53.4 0.2 -0.4 -173.5 -25 1231 No stop 23 56 00 --- 16 41 59 53.4 0.2 -0.4 -174.4 180 1244 23 52 36 23 56 00 J1639+8631 16 41 59 55.6 -0.2 0.1 177.7 -25 1244 No stop 23 57 30 =1654+866 16 43 30 55.6 -0.3 0.2 177.3 65 1250 23 56 01 --- Sat 5 Jun 2021 Day 156 --- 00 02 30 3C454.3 16 48 30 11.8 78.6 -6.1 -38.8 41 1250 00 02 30 00 07 30 --- 16 53 31 12.5 79.6 -6.0 -39.0 300 1270 00 02 31 00 12 30 J1639+8631 16 58 32 55.6 -0.7 0.4 173.2 37 1270 00 12 30 00 17 30 =1654+866 17 03 33 55.6 -0.8 0.5 171.9 300 1289 00 12 31 Schedule for DEFFORD (Code De ) 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 17 03 33 53.4 0.0 -0.0 -180.0 -25 1289 No stop 00 20 55 --- 17 06 58 53.4 -0.0 0.1 179.1 180 1302 00 17 31 00 21 40 J1639+8631 17 07 43 55.6 -0.9 0.6 170.7 20 1302 00 21 40 00 23 05 =1654+866 17 09 09 55.6 -1.0 0.6 170.4 85 1308 00 21 41 00 23 05 PSJ1721+8842 17 09 09 53.4 -0.1 0.1 178.6 -25 1308 No stop 00 26 30 --- 17 12 34 53.4 -0.1 0.1 177.7 180 1321 00 23 06 00 26 30 J1639+8631 17 12 34 55.6 -1.0 0.6 169.4 -25 1321 No stop 00 28 00 =1654+866 17 14 05 55.6 -1.1 0.7 169.0 65 1327 00 26 31 00 28 00 PSJ1721+8842 17 14 05 53.4 -0.1 0.2 177.3 -25 1327 No stop 00 31 25 --- 17 17 30 53.4 -0.1 0.2 176.4 180 1340 00 28 01 00 32 10 J1639+8631 17 18 15 55.5 -1.2 0.7 167.9 20 1340 00 32 10 00 33 35 =1654+866 17 19 40 55.5 -1.2 0.8 167.5 85 1345 00 32 11 00 33 35 PSJ1721+8842 17 19 40 53.4 -0.2 0.3 175.9 -25 1345 No stop 00 37 00 --- 17 23 06 53.4 -0.2 0.3 175.0 180 1358 00 33 36 00 37 00 J1639+8631 17 23 06 55.5 -1.3 0.8 166.6 -25 1358 No stop 00 38 30 =1654+866 17 24 36 55.5 -1.4 0.8 166.2 65 1364 00 37 01 00 38 30 PSJ1721+8842 17 24 36 53.4 -0.2 0.3 174.6 -25 1364 No stop 00 41 55 --- 17 28 02 53.4 -0.2 0.4 173.7 180 1377 00 38 31 00 42 40 J1639+8631 17 28 47 55.5 -1.5 0.9 165.0 20 1377 00 42 40 00 44 05 =1654+866 17 30 12 55.5 -1.5 0.9 164.6 85 1383 00 42 41 00 44 05 PSJ1721+8842 17 30 12 53.4 -0.3 0.4 173.2 -25 1383 No stop 00 47 30 --- 17 33 38 53.4 -0.3 0.5 172.3 180 1396 00 44 06 00 47 30 J1639+8631 17 33 38 55.5 -1.6 1.0 163.7 -25 1396 No stop 00 49 00 =1654+866 17 35 08 55.5 -1.6 1.0 163.3 65 1402 00 47 31 00 49 00 PSJ1721+8842 17 35 08 53.4 -0.3 0.5 171.9 -25 1402 No stop 00 52 25 --- 17 38 34 53.4 -0.3 0.6 171.0 180 1415 00 49 01 00 53 10 J1639+8631 17 39 19 55.5 -1.7 1.1 162.2 20 1415 00 53 10 00 54 35 =1654+866 17 40 44 55.4 -1.8 1.1 161.8 85 1421 00 53 11 00 54 35 PSJ1721+8842 17 40 44 53.4 -0.4 0.6 170.4 -25 1421 No stop 00 58 00 --- 17 44 09 53.4 -0.4 0.7 169.6 180 1434 00 54 36 Schedule for DEFFORD (Code De ) 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 17 44 09 55.4 -1.9 1.2 160.9 -25 1434 No stop 00 59 30 =1654+866 17 45 40 55.4 -1.9 1.2 160.5 65 1440 00 58 01 00 59 30 PSJ1721+8842 17 45 40 53.4 -0.4 0.7 169.2 -25 1440 No stop 01 02 55 --- 17 49 05 53.4 -0.4 0.8 168.3 180 1453 00 59 31 01 03 40 J1639+8631 17 49 50 55.4 -2.0 1.3 159.3 21 1453 01 03 40 01 05 05 =1654+866 17 51 16 55.4 -2.1 1.3 159.0 85 1458 01 03 41 01 05 05 PSJ1721+8842 17 51 16 53.4 -0.5 0.8 167.7 -24 1458 No stop 01 08 30 --- 17 54 41 53.4 -0.5 0.9 166.9 181 1471 01 05 06 01 08 30 J1639+8631 17 54 41 55.4 -2.1 1.4 158.0 -24 1471 No stop 01 10 00 =1654+866 17 56 11 55.4 -2.2 1.4 157.6 66 1477 01 08 31 01 10 00 PSJ1721+8842 17 56 11 53.4 -0.5 0.9 166.5 -24 1477 No stop 01 13 25 --- 17 59 37 53.4 -0.5 0.9 165.6 181 1490 01 10 01 01 14 10 J1639+8631 18 00 22 55.3 -2.3 1.4 156.5 21 1490 01 14 10 01 15 35 =1654+866 18 01 47 55.3 -2.3 1.5 156.1 85 1496 01 14 11 01 15 35 PSJ1721+8842 18 01 47 53.4 -0.6 1.0 165.0 -24 1496 No stop 01 19 00 --- 18 05 13 53.4 -0.6 1.0 164.1 181 1509 01 15 36 01 19 00 J1639+8631 18 05 13 55.3 -2.4 1.5 155.2 -24 1509 No stop 01 20 30 =1654+866 18 06 43 55.3 -2.4 1.6 154.8 66 1515 01 19 01 01 20 30 PSJ1721+8842 18 06 43 53.4 -0.6 1.1 163.8 -24 1515 No stop 01 23 55 --- 18 10 09 53.4 -0.6 1.1 162.9 181 1528 01 20 31 01 24 40 J1639+8631 18 10 54 55.3 -2.5 1.6 153.7 21 1528 01 24 40 01 26 05 =1654+866 18 12 19 55.3 -2.6 1.6 153.3 85 1534 01 24 41 01 26 05 PSJ1721+8842 18 12 19 53.4 -0.7 1.1 162.3 -24 1534 No stop 01 29 30 --- 18 15 45 53.4 -0.7 1.2 161.4 181 1547 01 26 06 01 29 30 J1639+8631 18 15 45 55.2 -2.7 1.7 152.3 -24 1547 No stop 01 31 00 =1654+866 18 17 15 55.2 -2.7 1.7 151.9 66 1553 01 29 31 01 31 00 PSJ1721+8842 18 17 15 53.4 -0.7 1.2 161.0 -24 1553 No stop 01 34 25 --- 18 20 40 53.3 -0.7 1.3 160.2 181 1566 01 31 01 01 35 10 J1639+8631 18 21 26 55.2 -2.8 1.8 150.8 20 1566 01 35 10 01 36 35 =1654+866 18 22 51 55.2 -2.8 1.8 150.4 85 1571 01 35 11 Schedule for DEFFORD (Code De ) 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 18 22 51 53.3 -0.7 1.3 159.6 -25 1571 No stop 01 40 00 --- 18 26 16 53.3 -0.8 1.4 158.7 180 1584 01 36 36 01 40 00 J1639+8631 18 26 16 55.2 -2.9 1.9 149.5 -25 1584 No stop 01 41 30 =1654+866 18 27 47 55.2 -2.9 1.9 149.1 65 1590 01 40 01 01 41 30 PSJ1721+8842 18 27 47 53.3 -0.8 1.4 158.3 -25 1590 No stop 01 44 55 --- 18 31 12 53.3 -0.8 1.5 157.5 180 1603 01 41 31 01 45 40 J1639+8631 18 31 57 55.1 -3.0 2.0 148.0 20 1603 01 45 40 01 47 05 =1654+866 18 33 23 55.1 -3.1 2.0 147.6 85 1609 01 45 41 01 47 05 PSJ1721+8842 18 33 23 53.3 -0.8 1.5 156.9 -26 1609 No stop 01 50 30 --- 18 36 48 53.3 -0.9 1.6 156.0 179 1622 01 47 06 01 50 30 J1639+8631 18 36 48 55.1 -3.1 2.1 146.7 -26 1622 No stop 01 52 00 =1654+866 18 38 18 55.1 -3.2 2.1 146.3 64 1628 01 50 31 01 52 00 PSJ1721+8842 18 38 18 53.3 -0.9 1.6 155.6 -26 1628 No stop 01 55 25 --- 18 41 44 53.3 -0.9 1.6 154.8 179 1641 01 52 01 01 56 10 J1639+8631 18 42 29 55.0 -3.3 2.1 145.2 19 1641 01 56 10 01 57 35 =1654+866 18 43 54 55.0 -3.3 2.2 144.8 85 1647 01 56 11 01 57 35 PSJ1721+8842 18 43 54 53.3 -0.9 1.7 154.2 -26 1647 No stop 02 01 00 --- 18 47 20 53.3 -1.0 1.7 153.3 179 1660 01 57 36 02 01 00 J1639+8631 18 47 20 55.0 -3.4 2.2 143.9 -27 1660 No stop 02 02 30 =1654+866 18 48 50 55.0 -3.4 2.3 143.5 63 1666 02 01 01 02 02 30 PSJ1721+8842 18 48 50 53.3 -1.0 1.8 152.9 -27 1666 No stop 02 05 55 --- 18 52 16 53.3 -1.0 1.8 152.0 178 1679 02 02 31 02 06 40 J1639+8631 18 53 01 54.9 -3.5 2.3 142.4 18 1679 02 06 40 02 08 05 =1654+866 18 54 26 54.9 -3.5 2.3 142.0 85 1684 02 06 41 02 08 05 PSJ1721+8842 18 54 26 53.3 -1.0 1.8 151.5 -27 1684 No stop 02 11 30 --- 18 57 52 53.3 -1.1 1.9 150.6 178 1698 02 08 06 02 11 30 J1639+8631 18 57 52 54.9 -3.6 2.4 141.1 -27 1698 No stop 02 13 00 =1654+866 18 59 22 54.9 -3.6 2.4 140.7 63 1703 02 11 31 02 13 00 PSJ1721+8842 18 59 22 53.3 -1.1 1.9 150.2 -27 1703 No stop 02 16 25 --- 19 02 47 53.2 -1.1 2.0 149.3 178 1717 02 13 01 Schedule for DEFFORD (Code De ) 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 19 03 32 54.8 -3.7 2.5 139.6 17 1717 02 17 10 02 18 35 =1654+866 19 04 58 54.8 -3.7 2.5 139.2 85 1722 02 17 11 02 18 35 PSJ1721+8842 19 04 58 53.2 -1.1 2.0 148.8 -28 1722 No stop 02 22 00 --- 19 08 23 53.2 -1.1 2.1 147.9 177 1735 02 18 36 02 22 00 J1639+8631 19 08 23 54.8 -3.8 2.6 138.3 -28 1735 No stop 02 23 30 =1654+866 19 09 53 54.8 -3.8 2.6 137.9 62 1741 02 22 01 02 23 30 PSJ1721+8842 19 09 53 53.2 -1.2 2.1 147.5 -28 1741 No stop 02 26 55 --- 19 13 19 53.2 -1.2 2.2 146.6 177 1754 02 23 31 02 27 40 J1639+8631 19 14 04 54.7 -3.9 2.7 136.8 17 1754 02 27 40 02 29 05 =1654+866 19 15 29 54.7 -3.9 2.7 136.4 85 1760 02 27 41 02 29 05 PSJ1721+8842 19 15 29 53.2 -1.2 2.2 146.1 -28 1760 No stop 02 32 30 --- 19 18 55 53.2 -1.2 2.3 145.2 177 1773 02 29 06 02 32 30 J1639+8631 19 18 55 54.7 -4.0 2.8 135.5 -28 1773 No stop 02 34 00 =1654+866 19 20 25 54.7 -4.0 2.8 135.1 62 1779 02 32 31 02 34 00 PSJ1721+8842 19 20 25 53.2 -1.2 2.3 144.8 -28 1779 No stop 02 37 25 --- 19 23 51 53.2 -1.3 2.3 143.9 177 1792 02 34 01 02 38 10 J1639+8631 19 24 36 54.6 -4.1 2.8 134.0 16 1792 02 38 10 02 39 35 =1654+866 19 26 01 54.6 -4.1 2.9 133.6 85 1797 02 38 11 02 39 35 PSJ1721+8842 19 26 01 53.2 -1.3 2.4 143.4 -29 1797 No stop 02 43 00 --- 19 29 27 53.2 -1.3 2.4 142.5 176 1811 02 39 36 02 43 00 J1639+8631 19 29 27 54.6 -4.2 2.9 132.7 -29 1811 No stop 02 44 30 =1654+866 19 30 57 54.5 -4.2 3.0 132.3 61 1816 02 43 01 02 44 30 PSJ1721+8842 19 30 57 53.1 -1.3 2.5 142.1 -29 1816 No stop 02 47 55 --- 19 34 22 53.1 -1.3 2.5 141.3 176 1830 02 44 31 02 48 40 J1639+8631 19 35 08 54.5 -4.3 3.0 131.2 16 1830 02 48 40 02 50 05 =1654+866 19 36 33 54.5 -4.3 3.0 130.8 85 1835 02 48 41 02 50 05 PSJ1721+8842 19 36 33 53.1 -1.4 2.5 140.7 -29 1835 No stop 02 53 30 --- 19 39 58 53.1 -1.4 2.6 139.8 176 1848 02 50 06 02 53 30 J1639+8631 19 39 58 54.4 -4.4 3.1 129.9 -29 1848 No stop 02 55 00 =1654+866 19 41 29 54.4 -4.4 3.1 129.5 61 1854 02 53 31 Schedule for DEFFORD (Code De ) 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 19 41 29 53.1 -1.4 2.6 139.4 -29 1854 No stop 02 58 25 --- 19 44 54 53.1 -1.4 2.7 138.6 176 1867 02 55 01 02 59 10 J1639+8631 19 45 39 54.4 -4.5 3.2 128.4 15 1867 02 59 10 03 00 35 =1654+866 19 47 05 54.4 -4.5 3.2 128.0 85 1873 02 59 11 03 00 35 PSJ1721+8842 19 47 05 53.1 -1.4 2.7 138.0 -30 1873 No stop 03 04 00 --- 19 50 30 53.1 -1.5 2.8 137.1 175 1886 03 00 36 03 04 00 J1639+8631 19 50 30 54.3 -4.6 3.3 127.1 -30 1886 No stop 03 05 30 =1654+866 19 52 00 54.3 -4.6 3.3 126.7 60 1892 03 04 01 03 05 30 PSJ1721+8842 19 52 00 53.1 -1.5 2.8 136.7 -30 1892 No stop 03 08 55 --- 19 55 26 53.1 -1.5 2.9 135.9 175 1905 03 05 31 03 09 40 J1639+8631 19 56 11 54.2 -4.6 3.4 125.7 15 1905 03 09 40 03 11 05 =1654+866 19 57 36 54.2 -4.7 3.4 125.3 85 1910 03 09 41 03 11 05 PSJ1721+8842 19 57 36 53.0 -1.5 2.9 135.3 -30 1910 No stop 03 14 30 --- 20 01 02 53.0 -1.5 3.0 134.4 175 1924 03 11 06 03 14 30 J1639+8631 20 01 02 54.2 -4.7 3.5 124.4 -30 1924 No stop 03 16 00 =1654+866 20 02 32 54.2 -4.7 3.5 124.0 60 1929 03 14 31 03 16 00 PSJ1721+8842 20 02 32 53.0 -1.5 3.0 134.1 -30 1929 No stop 03 19 25 --- 20 05 58 53.0 -1.6 3.0 133.2 175 1943 03 16 01 03 20 10 J1639+8631 20 06 43 54.1 -4.8 3.6 122.9 15 1943 03 20 10 03 21 35 =1654+866 20 08 08 54.1 -4.8 3.6 122.5 85 1948 03 20 11 03 21 35 PSJ1721+8842 20 08 08 53.0 -1.6 3.1 132.6 -30 1948 No stop 03 25 00 --- 20 11 34 53.0 -1.6 3.1 131.8 175 1961 03 21 36 03 25 00 J1639+8631 20 11 34 54.0 -4.9 3.6 121.6 -31 1961 No stop 03 26 30 =1654+866 20 13 04 54.0 -4.9 3.7 121.2 59 1967 03 25 01 03 26 30 PSJ1721+8842 20 13 04 53.0 -1.6 3.2 131.4 -31 1967 No stop 03 29 55 --- 20 16 29 53.0 -1.6 3.2 130.5 174 1980 03 26 31 03 30 40 J1639+8631 20 17 15 54.0 -4.9 3.7 120.2 14 1980 03 30 40 03 32 05 =1654+866 20 18 40 54.0 -5.0 3.7 119.8 85 1986 03 30 41 03 32 05 PSJ1721+8842 20 18 40 53.0 -1.6 3.3 129.9 -31 1986 No stop 03 35 30 --- 20 22 05 52.9 -1.7 3.3 129.1 174 1999 03 32 06 Schedule for DEFFORD (Code De ) 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 20 22 05 53.9 -5.0 3.8 118.9 -31 1999 No stop 03 37 00 =1654+866 20 23 36 53.9 -5.0 3.8 118.5 59 2005 03 35 31 03 37 00 PSJ1721+8842 20 23 36 52.9 -1.7 3.3 128.7 -31 2005 No stop 03 40 25 --- 20 27 01 52.9 -1.7 3.4 127.8 174 2018 03 37 01 03 41 10 J1639+8631 20 27 46 53.8 -5.1 3.9 117.4 14 2018 03 41 10 03 42 35 =1654+866 20 29 11 53.8 -5.1 3.9 117.1 85 2023 03 41 11 03 42 35 PSJ1721+8842 20 29 11 52.9 -1.7 3.4 127.3 -31 2023 No stop 03 46 00 --- 20 32 37 52.9 -1.7 3.5 126.4 174 2037 03 42 36 03 46 00 J1639+8631 20 32 37 53.8 -5.1 4.0 116.2 -31 2037 No stop 03 47 30 =1654+866 20 34 07 53.7 -5.1 4.0 115.8 59 2042 03 46 01 03 47 30 PSJ1721+8842 20 34 07 52.9 -1.7 3.5 126.0 -31 2042 No stop 03 50 55 --- 20 37 33 52.9 -1.8 3.6 125.1 174 2056 03 47 31 03 51 40 J1639+8631 20 38 18 53.7 -5.2 4.1 114.7 14 2056 03 51 40 03 53 05 =1654+866 20 39 43 53.7 -5.2 4.1 114.3 85 2061 03 51 41 03 53 05 PSJ1721+8842 20 39 43 52.9 -1.8 3.6 124.6 -31 2061 No stop 03 56 30 --- 20 43 09 52.8 -1.8 3.7 123.7 174 2074 03 53 06 03 56 30 J1639+8631 20 43 09 53.6 -5.2 4.2 113.5 -31 2074 No stop 03 58 00 =1654+866 20 44 39 53.6 -5.3 4.2 113.1 59 2080 03 56 31 03 58 00 PSJ1721+8842 20 44 39 52.8 -1.8 3.7 123.3 -31 2080 No stop 04 01 25 --- 20 48 05 52.8 -1.8 3.7 122.5 174 2093 03 58 01 04 02 10 J1639+8631 20 48 50 53.5 -5.3 4.3 112.0 13 2093 04 02 10 04 03 35 =1654+866 20 50 15 53.5 -5.3 4.3 111.6 85 2099 04 02 11 04 03 35 PSJ1721+8842 20 50 15 52.8 -1.8 3.8 121.9 -32 2099 No stop 04 07 00 --- 20 53 40 52.8 -1.8 3.8 121.0 173 2112 04 03 36 04 07 00 J1639+8631 20 53 40 53.5 -5.3 4.3 110.7 -32 2112 No stop 04 08 30 =1654+866 20 55 11 53.4 -5.4 4.4 110.4 58 2118 04 07 01 04 13 30 3C84 21 00 12 28.8 58.2 -6.3 -44.3 87 2118 04 13 30 04 18 30 --- 21 05 12 29.5 59.0 -6.3 -44.7 300 2137 04 13 31 04 23 30 J1639+8631 21 10 13 53.2 -5.5 4.6 106.5 84 2137 04 23 30 04 28 30 =1654+866 21 15 14 53.2 -5.5 4.7 105.2 300 2156 04 23 31 Schedule for DEFFORD (Code De ) 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 21 15 14 52.7 -1.9 4.2 115.6 -32 2156 No stop 04 31 55 --- 21 18 40 52.7 -2.0 4.3 114.7 173 2170 04 28 31 04 32 40 J1639+8631 21 19 25 53.1 -5.5 4.8 104.2 13 2170 04 32 40 04 34 05 =1654+866 21 20 50 53.1 -5.6 4.8 103.8 85 2175 04 32 41 04 34 05 PSJ1721+8842 21 20 50 52.7 -2.0 4.3 114.2 -32 2175 No stop 04 37 30 --- 21 24 16 52.6 -2.0 4.3 113.3 173 2188 04 34 06 04 37 30 J1639+8631 21 24 16 53.0 -5.6 4.8 102.9 -32 2188 No stop 04 39 00 =1654+866 21 25 46 53.0 -5.6 4.9 102.5 58 2194 04 37 31 04 39 00 PSJ1721+8842 21 25 46 52.6 -2.0 4.4 112.9 -32 2194 No stop 04 42 25 --- 21 29 11 52.6 -2.0 4.4 112.0 173 2207 04 39 01 04 43 10 J1639+8631 21 29 56 52.9 -5.6 4.9 101.5 13 2207 04 43 10 04 44 35 =1654+866 21 31 22 52.9 -5.6 5.0 101.1 85 2213 04 43 11 04 44 35 PSJ1721+8842 21 31 22 52.6 -2.0 4.5 111.5 -32 2213 No stop 04 48 00 --- 21 34 47 52.6 -2.0 4.5 110.6 173 2226 04 44 36 04 48 00 J1639+8631 21 34 47 52.9 -5.6 5.0 100.3 -32 2226 No stop 04 49 30 =1654+866 21 36 17 52.8 -5.6 5.0 99.9 58 2232 04 48 01 04 49 30 PSJ1721+8842 21 36 17 52.6 -2.0 4.5 110.2 -32 2232 No stop 04 52 55 --- 21 39 43 52.6 -2.0 4.6 109.4 173 2245 04 49 31 04 53 40 J1639+8631 21 40 28 52.8 -5.7 5.1 98.8 13 2245 04 53 40 04 55 05 =1654+866 21 41 53 52.8 -5.7 5.1 98.5 85 2250 04 53 41 04 55 05 PSJ1721+8842 21 41 53 52.5 -2.0 4.6 108.8 -32 2250 No stop 04 58 30 --- 21 45 19 52.5 -2.0 4.7 108.0 173 2264 04 55 06 04 58 30 J1639+8631 21 45 19 52.7 -5.7 5.2 97.6 -32 2264 No stop 05 00 00 =1654+866 21 46 49 52.7 -5.7 5.2 97.2 58 2269 04 58 31 05 00 00 PSJ1721+8842 21 46 49 52.5 -2.0 4.7 107.6 -32 2269 No stop 05 03 25 --- 21 50 15 52.5 -2.1 4.8 106.7 173 2283 05 00 01 05 04 10 J1639+8631 21 51 00 52.6 -5.7 5.3 96.2 13 2283 05 04 10 05 05 35 =1654+866 21 52 25 52.6 -5.7 5.3 95.8 85 2288 05 04 11 05 05 35 PSJ1721+8842 21 52 25 52.5 -2.1 4.8 106.2 -32 2288 No stop 05 09 00 --- 21 55 51 52.5 -2.1 4.9 105.3 173 2301 05 05 36 Schedule for DEFFORD (Code De ) 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 21 55 51 52.5 -5.7 5.4 94.9 -32 2301 No stop 05 10 30 =1654+866 21 57 21 52.5 -5.7 5.4 94.6 58 2307 05 09 01 05 10 30 PSJ1721+8842 21 57 21 52.5 -2.1 4.9 104.9 -32 2307 No stop 05 13 55 --- 22 00 46 52.4 -2.1 5.0 104.1 173 2320 05 10 31 05 14 40 J1639+8631 22 01 32 52.5 -5.7 5.5 93.5 13 2320 05 14 40 05 16 05 =1654+866 22 02 57 52.4 -5.7 5.5 93.2 85 2326 05 14 41 05 16 05 PSJ1721+8842 22 02 57 52.4 -2.1 5.0 103.5 -32 2326 No stop 05 19 30 --- 22 06 22 52.4 -2.1 5.0 102.7 173 2339 05 16 06 05 19 30 J1639+8631 22 06 22 52.4 -5.7 5.5 92.3 -32 2339 No stop 05 21 00 =1654+866 22 07 53 52.4 -5.7 5.6 91.9 58 2345 05 19 31 05 21 00 PSJ1721+8842 22 07 53 52.4 -2.1 5.1 102.3 -32 2345 No stop 05 24 25 --- 22 11 18 52.4 -2.1 5.1 101.4 173 2358 05 21 01 05 25 10 J1639+8631 22 12 03 52.3 -5.7 5.6 90.9 13 2358 05 25 10 05 26 35 =1654+866 22 13 29 52.3 -5.7 5.7 90.5 85 2364 05 25 11 05 26 35 PSJ1721+8842 22 13 29 52.4 -2.1 5.2 100.9 -32 2364 No stop 05 30 00 --- 22 16 54 52.3 -2.1 5.2 100.0 173 2377 05 26 36 05 30 00 J1639+8631 22 16 54 52.2 -5.7 5.7 89.7 -32 2377 No stop 05 31 30 =1654+866 22 18 24 52.2 -5.7 5.7 89.3 58 2383 05 30 01 05 31 30 PSJ1721+8842 22 18 24 52.3 -2.1 5.2 99.6 -32 2383 No stop 05 34 55 --- 22 21 50 52.3 -2.1 5.3 98.8 173 2396 05 31 31 05 35 40 J1639+8631 22 22 35 52.1 -5.7 5.8 88.3 13 2396 05 35 40 05 37 05 =1654+866 22 24 00 52.1 -5.7 5.8 87.9 85 2401 05 35 41 05 37 05 PSJ1721+8842 22 24 00 52.3 -2.1 5.3 98.2 -32 2401 No stop 05 40 30 --- 22 27 26 52.3 -2.1 5.4 97.4 173 2414 05 37 06 05 40 30 J1639+8631 22 27 26 52.1 -5.7 5.9 87.1 -32 2414 No stop 05 42 00 =1654+866 22 28 56 52.0 -5.7 5.9 86.7 58 2420 05 40 31 05 42 00 PSJ1721+8842 22 28 56 52.3 -2.1 5.4 97.0 -32 2420 No stop 05 45 25 --- 22 32 22 52.3 -2.1 5.5 96.1 173 2433 05 42 01 05 46 10 J1639+8631 22 33 07 52.0 -5.7 6.0 85.6 13 2433 05 46 10 05 47 35 =1654+866 22 34 32 51.9 -5.7 6.0 85.3 85 2439 05 46 11 Schedule for DEFFORD (Code De ) 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 22 34 32 52.2 -2.1 5.5 95.6 -32 2439 No stop 05 51 00 --- 22 37 58 52.2 -2.1 5.6 94.7 173 2452 05 47 36 05 51 00 J1639+8631 22 37 58 51.9 -5.7 6.1 84.4 -32 2452 No stop 05 52 30 =1654+866 22 39 28 51.9 -5.7 6.1 84.1 58 2458 05 51 01 05 52 30 PSJ1721+8842 22 39 28 52.2 -2.1 5.6 94.4 -32 2458 No stop 05 55 55 --- 22 42 53 52.2 -2.1 5.7 93.5 173 2471 05 52 31 05 56 35 J1639+8631 22 43 33 51.8 -5.7 6.2 83.1 8 2471 05 56 35 05 58 00 =1654+866 22 44 59 51.8 -5.7 6.2 82.7 85 2477 05 56 36 05 58 00 PSJ1721+8842 22 44 59 52.2 -2.1 5.7 93.0 -32 2477 No stop 06 00 00 --- 22 46 59 52.2 -2.1 5.7 92.5 88 2484 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: 18 Station: DEFFORD Total bit rate: 512 Format: VDIF Bits per sample: 2 Sample rate:128.000 Number of channels: 2 DBE type: Speedup factor: 1.00 Disk used to record data. 1st LO= 2272.00 2272.00 Net SB= U U IF SB = L L Pol. = RCP LCP BBC = 1 9 BBC SB= L L IF = A1 B1 The following frequency sets based on these setups were used. Frequency Set: 14 Setup file default. Used with PCAL = off LO sum= 1626.49 1626.49 BBC fr= 645.51 645.51 Bandwd= 64.00 64.00 Matching frequency sets: 14 15 16 17 18 Track assignments are: track1= 1, 2 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * 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