COVER INFORMATION Station: DEFFORD (Code De ) Experiment: Nuclear Outflows Exp. Code: EC088H Schedule Version: 2.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: Sina Chen Address: Technion Technion Haifa Israel Phone: +972-58-6274695 EMAIL: sina.chen@campus.technion.ac.il Fax: Phone during observation: +972-58-6274695 Observing mode: vlbi Notes: COVER LETTER: Schedule for DEFFORD (Code De ) Page 2 Nuclear Outflows 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 ---------------------------------------------------------------------------------------- --- Wed 8 Mar 2023 Day 67 --- Next scan frequencies: 1626.49 1626.49 Next BBC frequencies: 645.51 645.51 Next scan bandwidths: 64.00 64.00 21 00 00 J1224+2122 07 56 39 30.4 94.0 -4.5 -41.1 0 0 21 00 00 21 05 00 =1222+216 08 01 40 31.2 95.0 -4.4 -41.0 300 19 21 00 01 21 06 50 J1250+0216 08 03 30 12.6 103.0 -4.8 -36.8 31 19 21 06 50 21 08 50 --- 08 05 30 12.9 103.4 -4.8 -36.7 120 27 21 06 51 21 08 50 PG1244+026 08 05 30 13.6 104.2 -4.7 -36.6 -16 27 No stop 21 12 30 --- 08 09 11 14.1 105.0 -4.6 -36.4 204 41 21 08 51 21 12 30 J1250+0216 08 09 11 13.5 104.2 -4.7 -36.6 -15 41 No stop 21 14 30 --- 08 11 11 13.8 104.6 -4.7 -36.5 105 49 21 12 31 21 14 30 PG1244+026 08 11 11 14.4 105.4 -4.6 -36.4 -16 49 No stop 21 18 10 --- 08 14 52 15.0 106.1 -4.5 -36.2 204 63 21 14 31 21 18 40 J1250+0216 08 15 22 14.4 105.5 -4.6 -36.3 15 63 21 18 40 21 20 10 --- 08 16 52 14.6 105.8 -4.6 -36.3 90 69 21 18 41 21 20 10 PG1244+026 08 16 52 15.3 106.6 -4.5 -36.1 -16 69 No stop 21 23 50 --- 08 20 33 15.8 107.3 -4.5 -35.9 204 83 21 20 11 21 23 50 J1250+0216 08 20 33 15.2 106.6 -4.5 -36.1 -15 83 No stop 21 25 50 --- 08 22 33 15.5 107.0 -4.5 -36.0 105 91 21 23 51 21 25 50 PG1244+026 08 22 33 16.1 107.7 -4.4 -35.8 -16 91 No stop 21 29 30 --- 08 26 14 16.6 108.5 -4.4 -35.7 204 105 21 25 51 21 30 00 J1250+0216 08 26 44 16.1 107.8 -4.4 -35.8 14 105 21 30 00 21 31 30 --- 08 28 14 16.3 108.2 -4.4 -35.7 90 111 21 30 01 21 31 30 PG1244+026 08 28 14 16.9 108.9 -4.3 -35.6 -16 111 No stop 21 35 10 --- 08 31 55 17.5 109.7 -4.3 -35.4 204 125 21 31 31 21 35 10 J1250+0216 08 31 55 16.8 108.9 -4.3 -35.5 -16 125 No stop 21 37 10 --- 08 33 55 17.1 109.4 -4.3 -35.4 104 133 21 35 11 21 37 10 PG1244+026 08 33 55 17.8 110.2 -4.2 -35.2 -16 133 No stop 21 40 50 --- 08 37 36 18.3 111.0 -4.2 -35.0 204 147 21 37 11 21 41 20 J1250+0216 08 38 06 17.7 110.3 -4.2 -35.2 14 147 21 41 20 21 42 50 --- 08 39 36 17.9 110.6 -4.2 -35.1 90 153 21 41 21 Schedule for DEFFORD (Code De ) Page 3 Nuclear Outflows 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 ---------------------------------------------------------------------------------------- --- Wed 8 Mar 2023 Day 67 --- 21 42 50 PG1244+026 08 39 36 18.6 111.4 -4.1 -34.9 -17 153 No stop 21 46 30 --- 08 43 17 19.1 112.2 -4.1 -34.7 203 167 21 42 51 21 46 30 J1250+0216 08 43 17 18.5 111.4 -4.1 -34.9 -16 167 No stop 21 48 30 --- 08 45 17 18.7 111.8 -4.1 -34.8 104 175 21 46 31 21 48 30 PG1244+026 08 45 17 19.4 112.6 -4.0 -34.6 -17 175 No stop 21 52 10 --- 08 48 57 19.9 113.4 -4.0 -34.3 203 189 21 48 31 21 52 40 J1250+0216 08 49 28 19.3 112.7 -4.0 -34.5 14 189 21 52 40 21 54 10 --- 08 50 58 19.6 113.0 -4.0 -34.4 90 195 21 52 41 21 54 10 PG1244+026 08 50 58 20.2 113.9 -3.9 -34.2 -17 195 No stop 21 57 50 --- 08 54 38 20.7 114.7 -3.9 -34.0 203 209 21 54 11 21 57 50 J1250+0216 08 54 38 20.1 113.9 -4.0 -34.2 -16 209 No stop 21 59 50 --- 08 56 39 20.4 114.3 -3.9 -34.1 104 216 21 57 51 21 59 50 PG1244+026 08 56 39 21.0 115.1 -3.9 -33.8 -17 216 No stop 22 03 30 --- 09 00 19 21.5 115.9 -3.8 -33.6 203 231 21 59 51 22 04 00 J1250+0216 09 00 49 20.9 115.2 -3.8 -33.8 14 231 22 04 00 22 05 30 --- 09 02 20 21.1 115.6 -3.8 -33.7 90 236 22 04 01 22 05 30 PG1244+026 09 02 20 21.8 116.4 -3.8 -33.4 -17 236 No stop 22 09 10 --- 09 06 00 22.3 117.2 -3.7 -33.1 203 251 22 05 31 22 09 10 J1250+0216 09 06 00 21.7 116.4 -3.8 -33.4 -16 251 No stop 22 11 10 --- 09 08 01 21.9 116.8 -3.7 -33.3 104 258 22 09 11 22 11 10 PG1244+026 09 08 01 22.5 117.7 -3.7 -33.0 -17 258 No stop 22 14 50 --- 09 11 41 23.0 118.5 -3.6 -32.7 203 272 22 11 11 22 15 20 J1250+0216 09 12 11 22.5 117.8 -3.7 -32.9 14 272 22 15 20 22 16 50 --- 09 13 42 22.7 118.1 -3.6 -32.8 90 278 22 15 21 22 16 50 PG1244+026 09 13 42 23.3 119.0 -3.6 -32.5 -17 278 No stop 22 20 30 --- 09 17 22 23.8 119.8 -3.5 -32.2 203 292 22 16 51 22 20 30 J1250+0216 09 17 22 23.2 119.0 -3.6 -32.5 -16 292 No stop 22 22 30 --- 09 19 22 23.5 119.4 -3.5 -32.4 104 300 22 20 31 22 22 30 PG1244+026 09 19 22 24.1 120.3 -3.5 -32.1 -17 300 No stop 22 26 10 --- 09 23 03 24.6 121.1 -3.4 -31.7 203 314 22 22 31 Schedule for DEFFORD (Code De ) Page 4 Nuclear Outflows 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 ---------------------------------------------------------------------------------------- --- Wed 8 Mar 2023 Day 67 --- 22 26 40 J1250+0216 09 23 33 24.0 120.4 -3.5 -32.0 14 314 22 26 40 22 28 10 --- 09 25 03 24.2 120.7 -3.4 -31.9 90 320 22 26 41 22 28 10 PG1244+026 09 25 03 24.8 121.6 -3.4 -31.6 -17 320 No stop 22 31 50 --- 09 28 44 25.3 122.5 -3.3 -31.2 203 334 22 28 11 22 31 50 J1250+0216 09 28 44 24.7 121.6 -3.4 -31.6 -16 334 No stop 22 33 50 --- 09 30 44 25.0 122.1 -3.3 -31.4 104 342 22 31 51 22 33 50 PG1244+026 09 30 44 25.6 122.9 -3.3 -31.1 -17 342 No stop 22 37 30 --- 09 34 25 26.0 123.8 -3.2 -30.7 203 356 22 33 51 22 38 00 J1250+0216 09 34 55 25.5 123.0 -3.3 -31.0 14 356 22 38 00 22 39 30 --- 09 36 25 25.7 123.4 -3.3 -30.9 90 362 22 38 01 22 39 30 PG1244+026 09 36 25 26.3 124.3 -3.2 -30.5 -17 362 No stop 22 43 10 --- 09 40 06 26.7 125.2 -3.1 -30.2 203 376 22 39 31 22 43 10 J1250+0216 09 40 06 26.2 124.3 -3.2 -30.5 -16 376 No stop 22 45 10 --- 09 42 06 26.4 124.8 -3.2 -30.3 104 384 22 43 11 22 45 10 PG1244+026 09 42 06 27.0 125.7 -3.1 -30.0 -18 384 No stop 22 48 50 --- 09 45 47 27.5 126.6 -3.0 -29.6 202 398 22 45 11 22 49 20 J1250+0216 09 46 17 26.9 125.8 -3.1 -29.9 13 398 22 49 20 22 50 50 --- 09 47 47 27.1 126.1 -3.1 -29.8 90 404 22 49 21 22 50 50 PG1244+026 09 47 47 27.7 127.1 -3.0 -29.4 -18 404 No stop 22 53 50 --- 09 50 48 28.1 127.8 -2.9 -29.1 162 415 22 50 51 22 53 50 J1250+0216 09 50 48 27.5 126.9 -3.0 -29.5 -17 415 No stop 22 55 30 --- 09 52 28 27.7 127.3 -3.0 -29.3 83 422 22 53 51 22 55 30 PG1244+026 09 52 28 28.3 128.2 -2.9 -28.9 -18 422 No stop 22 58 30 --- 09 55 28 28.6 129.0 -2.9 -28.6 162 433 22 55 31 22 59 00 J1250+0216 09 55 58 28.1 128.2 -2.9 -28.9 13 433 22 59 00 23 00 10 --- 09 57 09 28.3 128.4 -2.9 -28.8 70 438 22 59 01 23 01 10 J1430+1043 09 58 09 21.6 100.8 -4.6 -37.9 -45 438 23 01 10 23 06 10 =1427+109 10 03 10 22.4 101.8 -4.5 -37.7 255 457 23 01 11 23 24 25 J1420-1244 10 21 28 7.1 121.7 -4.0 -32.4 1020 457 23 24 25 23 26 25 --- 10 23 28 7.4 122.1 -4.0 -32.2 120 465 23 24 26 Schedule for DEFFORD (Code De ) Page 5 Nuclear Outflows 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 ---------------------------------------------------------------------------------------- --- Wed 8 Mar 2023 Day 67 --- 23 26 25 PG1416-129 10 23 28 7.2 122.6 -3.9 -32.1 -13 465 No stop 23 30 05 --- 10 27 09 7.6 123.3 -3.9 -31.8 207 479 23 26 26 23 30 30 J1420-1244 10 27 34 7.9 123.0 -3.9 -31.9 13 479 23 30 30 23 32 00 --- 10 29 04 8.1 123.3 -3.9 -31.8 90 485 23 30 31 23 32 00 PG1416-129 10 29 04 7.9 123.7 -3.9 -31.7 -13 485 No stop 23 35 40 --- 10 32 44 8.3 124.5 -3.8 -31.3 207 499 23 32 01 23 35 40 J1420-1244 10 32 44 8.6 124.1 -3.8 -31.5 -12 499 No stop 23 37 40 --- 10 34 45 8.8 124.5 -3.8 -31.3 108 507 23 35 41 23 37 40 PG1416-129 10 34 45 8.6 124.9 -3.8 -31.2 -13 507 No stop 23 41 20 --- 10 38 25 9.1 125.7 -3.7 -30.8 207 521 23 37 41 23 41 45 J1420-1244 10 38 50 9.4 125.4 -3.7 -30.9 13 521 23 41 45 23 43 15 --- 10 40 21 9.5 125.7 -3.7 -30.8 90 527 23 41 46 23 43 15 PG1416-129 10 40 21 9.3 126.1 -3.7 -30.7 -13 527 No stop 23 46 55 --- 10 44 01 9.8 126.9 -3.6 -30.3 207 541 23 43 16 23 46 55 J1420-1244 10 44 01 10.0 126.5 -3.6 -30.4 -12 541 No stop 23 48 55 --- 10 46 02 10.2 126.9 -3.6 -30.3 108 549 23 46 56 23 48 55 PG1416-129 10 46 02 10.0 127.3 -3.6 -30.1 -13 549 No stop 23 52 35 --- 10 49 42 10.4 128.1 -3.5 -29.8 207 563 23 48 56 23 53 00 J1420-1244 10 50 07 10.7 127.8 -3.5 -29.9 13 563 23 53 00 23 54 30 --- 10 51 38 10.9 128.1 -3.5 -29.7 90 569 23 53 01 23 54 30 PG1416-129 10 51 38 10.7 128.5 -3.5 -29.6 -13 569 No stop 23 58 10 --- 10 55 18 11.1 129.3 -3.4 -29.2 207 583 23 54 31 --- Start: Wed 8 Mar 2023 Day 67 -- Stop: Thu 9 Mar 2023 Day 68 --- 23 58 10 J1420-1244 10 55 18 11.4 128.9 -3.4 -29.4 -12 583 No stop 00 00 10 --- 10 57 18 11.6 129.3 -3.4 -29.2 108 591 23 58 11 00 00 10 PG1416-129 10 57 18 11.4 129.8 -3.4 -29.0 -13 591 No stop 00 03 50 --- 11 00 59 11.8 130.6 -3.3 -28.7 207 605 00 00 11 00 04 15 J1420-1244 11 01 24 12.1 130.2 -3.3 -28.8 13 605 00 04 15 00 05 45 --- 11 02 54 12.3 130.5 -3.3 -28.6 90 611 00 04 16 Schedule for DEFFORD (Code De ) Page 6 Nuclear Outflows 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 ---------------------------------------------------------------------------------------- --- Thu 9 Mar 2023 Day 68 --- 00 05 45 PG1416-129 11 02 54 12.0 131.0 -3.3 -28.5 -13 611 No stop 00 09 25 --- 11 06 35 12.4 131.8 -3.2 -28.1 207 625 00 05 46 00 09 25 J1420-1244 11 06 35 12.7 131.4 -3.2 -28.2 -12 625 No stop 00 11 25 --- 11 08 35 12.9 131.8 -3.2 -28.0 108 633 00 09 26 00 11 25 PG1416-129 11 08 35 12.7 132.2 -3.2 -27.9 -13 633 No stop 00 15 05 --- 11 12 16 13.1 133.0 -3.1 -27.5 207 647 00 11 26 00 15 30 J1420-1244 11 12 41 13.4 132.7 -3.1 -27.6 13 647 00 15 30 00 17 00 --- 11 14 11 13.6 133.0 -3.1 -27.4 90 652 00 15 31 00 17 00 PG1416-129 11 14 11 13.3 133.5 -3.1 -27.3 -13 652 No stop 00 20 40 --- 11 17 52 13.7 134.3 -3.0 -26.9 207 667 00 17 01 00 20 40 J1420-1244 11 17 52 14.0 133.9 -3.1 -27.0 -12 667 No stop 00 22 40 --- 11 19 52 14.2 134.3 -3.0 -26.8 108 674 00 20 41 00 22 40 PG1416-129 11 19 52 13.9 134.7 -3.0 -26.6 -13 674 No stop 00 26 20 --- 11 23 33 14.3 135.6 -2.9 -26.2 207 689 00 22 41 00 26 45 J1420-1244 11 23 58 14.6 135.2 -3.0 -26.3 13 689 00 26 45 00 28 15 --- 11 25 28 14.8 135.6 -2.9 -26.2 90 694 00 26 46 00 28 15 PG1416-129 11 25 28 14.5 136.0 -2.9 -26.0 -13 694 No stop 00 31 55 --- 11 29 09 14.9 136.8 -2.9 -25.6 207 709 00 28 16 00 31 55 J1420-1244 11 29 09 15.2 136.4 -2.9 -25.8 -12 709 No stop 00 33 55 --- 11 31 09 15.4 136.9 -2.8 -25.5 108 716 00 31 56 00 33 55 PG1416-129 11 31 09 15.1 137.3 -2.8 -25.4 -13 716 No stop 00 37 35 --- 11 34 50 15.5 138.1 -2.8 -24.9 207 730 00 33 56 00 38 00 J1420-1244 11 35 15 15.8 137.8 -2.8 -25.0 13 730 00 38 00 00 39 30 --- 11 36 45 16.0 138.1 -2.7 -24.9 90 736 00 38 01 00 39 30 PG1416-129 11 36 45 15.7 138.6 -2.7 -24.7 -13 736 No stop 00 43 10 --- 11 40 26 16.1 139.4 -2.7 -24.2 207 750 00 39 31 00 43 10 J1420-1244 11 40 26 16.4 139.0 -2.7 -24.4 -12 750 No stop 00 45 10 --- 11 42 26 16.6 139.5 -2.6 -24.2 108 758 00 43 11 00 45 10 PG1416-129 11 42 26 16.3 139.9 -2.6 -24.0 -13 758 No stop 00 48 50 --- 11 46 06 16.6 140.7 -2.6 -23.6 207 772 00 45 11 Schedule for DEFFORD (Code De ) Page 7 Nuclear Outflows 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 ---------------------------------------------------------------------------------------- --- Thu 9 Mar 2023 Day 68 --- 00 49 15 J1420-1244 11 46 32 17.0 140.4 -2.6 -23.7 13 772 00 49 15 00 50 45 --- 11 48 02 17.1 140.8 -2.6 -23.5 90 778 00 49 16 00 50 45 PG1416-129 11 48 02 16.8 141.2 -2.5 -23.3 -13 778 No stop 00 53 45 --- 11 51 02 17.1 141.9 -2.5 -22.9 167 790 00 50 46 00 53 45 J1420-1244 11 51 02 17.4 141.5 -2.5 -23.1 -12 790 No stop 00 55 25 --- 11 52 43 17.6 141.9 -2.5 -22.9 88 796 00 53 46 00 55 25 PG1416-129 11 52 43 17.3 142.3 -2.5 -22.7 -13 796 No stop 00 58 25 --- 11 55 43 17.5 143.0 -2.4 -22.3 167 808 00 55 26 00 58 50 J1420-1244 11 56 08 17.9 142.7 -2.4 -22.5 13 808 00 58 50 01 00 00 --- 11 57 18 18.0 142.9 -2.4 -22.3 70 812 00 58 51 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess123.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: 15 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: 9 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: 9 10 11 12 13 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) * PG1244+026 12 44 02.057008 * 12 46 35.248000 12 47 46.861727 0.00 02 38 31.35488 * 02 22 08.79000 02 14 27.72633 0.00 From catalog imbedded in main SCHED input file. * J1250+0216 12 47 59.415380 * 12 50 32.580800 12 51 44.174015 0.00 02 32 51.19478 * 02 16 32.17300 02 08 52.66931 0.00 From catalog imbedded in main SCHED input file. * PG1416-129 14 16 21.280852 * 14 19 03.820000 14 20 19.410983 0.00 -12 56 58.05476 *-13 10 44.70000 -13 17 11.61704 0.00 From catalog imbedded in main SCHED input file. * J1420-1244 14 17 22.584708 * 14 20 04.881200 14 21 20.356517 0.00 -12 31 14.45123 *-12 44 58.56500 -12 51 24.44324 0.00 From catalog imbedded in main SCHED input file. 1222+216 12 22 23.408719 * 12 24 54.458404 12 26 05.313166 0.05 * J1224+2122 21 39 23.03695 * 21 22 46.38856 21 14 57.64170 0.09 J1224+21 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 386 observations. 1427+109 14 27 43.700718 * 14 30 09.738797 14 31 17.781261 0.06 * J1430+1043 10 56 44.61950 * 10 43 26.86236 10 37 06.63821 0.12 J1430+10 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 179 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 PG1244+026 sess123.L1024 1 2 3 4 5 6 7 8 9 14 15 1.200 115.106 J1250+0216 sess123.L1024 1 2 3 4 5 6 7 8 9 14 15 0.606 54.913 PG1416-129 sess123.L1024 1 2 3 4 5 6 7 8 9 14 15 1.200 90.929 J1420-1244 sess123.L1024 1 2 3 4 5 6 7 8 9 14 15 0.606 43.429 J1224+2122 sess123.L1024 1 2 3 4 5 6 7 8 9 14 15 0.083 8.750 J1430+1043 sess123.L1024 1 2 3 4 5 6 7 8 9 14 15 0.083 7.521 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) PG1244+026 157.0 J1250+0216 156.0 PG1416-129 130.9 J1420-1244 130.8 J1224+2122 156.3 J1430+1043 131.4 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