COVER INFORMATION Station: MEDICINA (Code Mc ) Experiment: Observations of radio-quiet quasars: SDSSJ1128+2402 Exp. Code: EJ027D Schedule Version: 2.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: Neal Jackson Address: University of Manchester Turing Building Manchester M13 9PL U.K. Phone: +44 161 275 4080 EMAIL: neal.jackson@manchester.ac.uk Fax: +44 275 4297 Phone during observation: +44 161 275 4080 Observing mode: MKIV Notes: Schedule for MEDICINA (Code Mc ) Page 2 Observations of radio-quiet quasars: SDSSJ1128+2402 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 10 Mar 2023 Day 69 --- ---------- Fringe Finder ---------- Next scan frequencies: 1626.49 1626.49 1626.49 1626.49 1690.49 1690.49 1690.49 1690.49 Next BBC frequencies: 331.49 331.49 331.49 331.49 395.49 395.49 395.49 395.49 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 19 00 00 4C39.25 06 59 22 61.9 448.3 -2.5 -66.4 0 0 19 00 00 19 05 00 --- 07 04 23 62.8 449.1 -2.4 -66.4 300 39 19 00 01 19 07 00 J1124+2336 07 06 23 34.0 449.3 -4.3 -51.0 57 39 19 07 00 19 12 00 --- 07 11 24 34.9 450.2 -4.2 -51.0 300 77 19 07 01 19 12 00 SDSSJ1128+24 07 11 24 34.4 449.1 -4.3 -51.2 -6 77 No stop 19 17 00 --- 07 16 25 35.3 449.9 -4.2 -51.3 294 116 19 12 01 19 17 40 J1124+2336 07 17 05 35.9 451.2 -4.1 -51.0 34 116 19 17 40 19 19 10 --- 07 18 35 36.1 451.5 -4.1 -51.0 90 128 19 17 41 19 19 10 SDSSJ1128+24 07 18 35 35.6 450.3 -4.2 -51.3 -6 128 No stop 19 24 10 --- 07 23 36 36.5 451.2 -4.1 -51.2 294 166 19 19 11 19 24 10 J1124+2336 07 23 36 37.0 452.4 -4.0 -51.0 -6 166 No stop 19 25 40 --- 07 25 06 37.3 452.7 -4.0 -50.9 84 178 19 24 11 19 25 40 SDSSJ1128+24 07 25 06 36.8 451.5 -4.1 -51.2 -5 178 No stop 19 30 40 --- 07 30 07 37.7 452.4 -4.0 -51.2 295 216 19 25 41 19 31 20 J1124+2336 07 30 47 38.3 453.7 -3.9 -50.9 34 216 19 31 20 19 32 50 --- 07 32 18 38.6 454.0 -3.9 -50.9 90 228 19 31 21 19 32 50 SDSSJ1128+24 07 32 18 38.1 452.8 -4.0 -51.2 -6 228 No stop 19 37 50 --- 07 37 18 39.0 453.7 -3.9 -51.1 294 267 19 32 51 19 37 50 J1124+2336 07 37 18 39.5 454.9 -3.8 -50.8 -6 267 No stop 19 39 20 --- 07 38 49 39.7 455.2 -3.8 -50.7 84 278 19 37 51 19 39 20 SDSSJ1128+24 07 38 49 39.2 454.0 -3.8 -51.1 -6 278 No stop 19 44 20 --- 07 43 50 40.1 454.9 -3.8 -51.0 294 317 19 39 21 19 45 00 J1124+2336 07 44 30 40.7 456.3 -3.7 -50.6 34 317 19 45 00 19 46 30 --- 07 46 00 41.0 456.6 -3.7 -50.6 90 328 19 45 01 19 46 30 SDSSJ1128+24 07 46 00 40.5 455.3 -3.7 -50.9 -6 328 No stop 19 51 30 --- 07 51 01 41.4 456.3 -3.6 -50.8 294 367 19 46 31 Schedule for MEDICINA (Code Mc ) Page 3 Observations of radio-quiet quasars: SDSSJ1128+2402 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 10 Mar 2023 Day 69 --- 19 51 30 J1124+2336 07 51 01 41.9 457.5 -3.6 -50.4 -6 367 No stop 19 53 00 --- 07 52 31 42.2 457.8 -3.5 -50.4 84 379 19 51 31 19 53 00 SDSSJ1128+24 07 52 31 41.7 456.6 -3.6 -50.8 -6 379 No stop 19 58 00 --- 07 57 32 42.6 457.5 -3.5 -50.6 294 417 19 53 01 19 58 40 J1124+2336 07 58 12 43.2 459.0 -3.5 -50.2 34 417 19 58 40 20 00 10 --- 07 59 42 43.4 459.3 -3.4 -50.1 90 429 19 58 41 20 00 10 SDSSJ1128+24 07 59 42 42.9 458.0 -3.5 -50.6 -6 429 No stop 20 05 10 --- 08 04 43 43.8 459.0 -3.4 -50.4 294 468 20 00 11 20 05 10 J1124+2336 08 04 43 44.3 460.3 -3.3 -49.9 -6 468 No stop 20 06 40 --- 08 06 13 44.6 460.6 -3.3 -49.8 84 479 20 05 11 20 06 40 SDSSJ1128+24 08 06 13 44.1 459.3 -3.4 -50.3 -6 479 No stop 20 11 40 --- 08 11 14 45.0 460.3 -3.3 -50.1 294 518 20 06 41 20 12 20 J1124+2336 08 11 54 45.6 461.8 -3.2 -49.5 34 518 20 12 20 20 13 50 --- 08 13 24 45.8 462.1 -3.2 -49.5 90 529 20 12 21 20 13 50 SDSSJ1128+24 08 13 24 45.4 460.8 -3.3 -50.0 -6 529 No stop 20 18 50 --- 08 18 25 46.2 461.8 -3.2 -49.8 294 568 20 13 51 20 18 50 J1124+2336 08 18 25 46.7 463.2 -3.1 -49.2 -6 568 No stop 20 20 20 --- 08 19 55 47.0 463.5 -3.1 -49.1 84 580 20 18 51 20 20 20 SDSSJ1128+24 08 19 55 46.5 462.1 -3.2 -49.7 -6 580 No stop 20 25 20 --- 08 24 56 47.4 463.2 -3.1 -49.4 294 618 20 20 21 20 26 00 J1124+2336 08 25 36 47.9 464.8 -3.0 -48.7 34 618 20 26 00 20 27 30 --- 08 27 07 48.2 465.2 -3.0 -48.6 90 630 20 26 01 20 27 30 SDSSJ1128+24 08 27 07 47.7 463.7 -3.0 -49.3 -6 630 No stop 20 32 30 --- 08 32 07 48.6 464.8 -3.0 -48.9 294 669 20 27 31 20 32 30 J1124+2336 08 32 07 49.1 466.3 -2.9 -48.3 -6 669 No stop 20 34 00 --- 08 33 38 49.3 466.7 -2.9 -48.1 84 680 20 32 31 20 34 00 SDSSJ1128+24 08 33 38 48.9 465.2 -2.9 -48.8 -6 680 No stop 20 39 00 --- 08 38 38 49.7 466.3 -2.8 -48.5 294 719 20 34 01 20 39 40 J1124+2336 08 39 19 50.3 468.0 -2.8 -47.7 34 719 20 39 40 20 41 10 --- 08 40 49 50.5 468.4 -2.7 -47.5 90 730 20 39 41 Schedule for MEDICINA (Code Mc ) Page 4 Observations of radio-quiet quasars: SDSSJ1128+2402 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 10 Mar 2023 Day 69 --- 20 41 10 SDSSJ1128+24 08 40 49 50.1 466.9 -2.8 -48.3 -6 730 No stop 20 46 10 --- 08 45 50 51.0 468.1 -2.7 -47.9 294 769 20 41 11 20 46 10 J1124+2336 08 45 50 51.4 469.6 -2.7 -47.1 -6 769 No stop 20 47 40 --- 08 47 20 51.6 470.0 -2.6 -46.9 84 781 20 46 11 20 47 40 SDSSJ1128+24 08 47 20 51.2 468.4 -2.7 -47.7 -6 781 No stop 20 52 40 --- 08 52 21 52.1 469.7 -2.6 -47.3 294 819 20 47 41 20 53 20 J1124+2336 08 53 01 52.6 471.4 -2.5 -46.3 34 819 20 53 20 20 54 50 --- 08 54 31 52.8 471.8 -2.5 -46.2 90 831 20 53 21 20 54 50 SDSSJ1128+24 08 54 31 52.4 470.2 -2.6 -47.0 -6 831 No stop 20 59 50 --- 08 59 32 53.3 471.5 -2.5 -46.5 294 870 20 54 51 20 59 50 J1124+2336 08 59 32 53.7 473.2 -2.4 -45.6 -6 870 No stop 21 01 20 --- 09 01 02 53.9 473.6 -2.4 -45.4 84 881 20 59 51 21 01 20 SDSSJ1128+24 09 01 02 53.5 471.9 -2.5 -46.3 -6 881 No stop 21 06 20 --- 09 06 03 54.3 473.3 -2.4 -45.8 294 920 21 01 21 21 07 00 J1124+2336 09 06 43 54.8 475.2 -2.3 -44.7 34 920 21 07 00 21 08 30 --- 09 08 13 55.1 475.6 -2.3 -44.5 90 931 21 07 01 21 08 30 SDSSJ1128+24 09 08 13 54.7 473.9 -2.4 -45.5 -6 931 No stop 21 13 30 --- 09 13 14 55.5 475.3 -2.3 -44.8 294 970 21 08 31 21 13 30 J1124+2336 09 13 14 55.9 477.0 -2.2 -43.8 -6 970 No stop 21 15 00 --- 09 14 44 56.1 477.5 -2.2 -43.6 84 982 21 13 31 21 15 00 SDSSJ1128+24 09 14 44 55.7 475.7 -2.2 -44.6 -6 982 No stop 21 20 00 --- 09 19 45 56.5 477.2 -2.2 -43.9 294 1020 21 15 01 21 20 40 J1124+2336 09 20 25 57.0 479.2 -2.1 -42.7 34 1020 21 20 40 21 22 10 --- 09 21 56 57.2 479.7 -2.1 -42.5 90 1032 21 20 41 21 22 10 SDSSJ1128+24 09 21 56 56.9 477.8 -2.1 -43.6 -6 1032 No stop 21 27 10 --- 09 26 56 57.7 479.4 -2.0 -42.8 294 1070 21 22 11 21 27 10 J1124+2336 09 26 56 58.0 481.3 -2.0 -41.6 -6 1070 No stop 21 28 40 --- 09 28 27 58.2 481.8 -1.9 -41.4 84 1082 21 27 11 Schedule for MEDICINA (Code Mc ) Page 5 Observations of radio-quiet quasars: SDSSJ1128+2402 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 10 Mar 2023 Day 69 --- ---------- Fringe Finder ---------- 21 30 40 3C273B 09 30 27 31.9 483.7 -3.0 -36.4 62 1082 21 30 40 21 35 40 --- 09 35 28 32.6 484.9 -2.9 -35.8 300 1121 21 30 41 21 37 40 SDSSJ1128+24 09 37 28 59.3 482.8 -1.9 -41.0 62 1121 21 37 40 21 42 40 --- 09 42 29 60.0 484.5 -1.8 -40.0 300 1159 21 37 41 21 43 20 J1124+2336 09 43 09 60.4 486.8 -1.7 -38.5 33 1159 21 43 20 21 44 50 --- 09 44 39 60.6 487.4 -1.7 -38.1 90 1171 21 43 21 21 44 50 SDSSJ1128+24 09 44 39 60.3 485.3 -1.7 -39.5 -7 1171 No stop 21 49 50 --- 09 49 40 61.1 487.1 -1.7 -38.5 293 1210 21 44 51 21 49 50 J1124+2336 09 49 40 61.3 489.3 -1.6 -37.0 -7 1210 No stop 21 51 20 --- 09 51 10 61.5 489.8 -1.6 -36.6 83 1221 21 49 51 21 51 20 SDSSJ1128+24 09 51 10 61.3 487.7 -1.6 -38.1 -7 1221 No stop 21 56 20 --- 09 56 11 62.0 489.6 -1.6 -36.9 293 1260 21 51 21 21 57 00 J1124+2336 09 56 51 62.3 492.1 -1.5 -35.2 33 1260 21 57 00 21 58 30 --- 09 58 22 62.5 492.7 -1.4 -34.8 90 1271 21 57 01 21 58 30 SDSSJ1128+24 09 58 22 62.3 490.4 -1.5 -36.4 -7 1271 No stop 22 03 30 --- 10 03 22 62.9 492.5 -1.4 -35.1 293 1310 21 58 31 22 03 30 J1124+2336 10 03 22 63.1 494.8 -1.4 -33.5 -7 1310 No stop 22 05 00 --- 10 04 53 63.3 495.4 -1.3 -33.1 83 1322 22 03 31 22 05 00 SDSSJ1128+24 10 04 53 63.1 493.1 -1.4 -34.7 -7 1322 No stop 22 10 00 --- 10 09 53 63.8 495.2 -1.3 -33.3 293 1360 22 05 01 22 10 40 J1124+2336 10 10 34 64.0 497.9 -1.2 -31.4 33 1360 22 10 40 22 12 10 --- 10 12 04 64.2 498.6 -1.2 -31.0 90 1372 22 10 41 22 12 10 SDSSJ1128+24 10 12 04 64.0 496.2 -1.3 -32.7 -7 1372 No stop 22 17 10 --- 10 17 05 64.6 498.4 -1.2 -31.2 293 1411 22 12 11 22 17 10 J1124+2336 10 17 05 64.8 500.9 -1.1 -29.4 -7 1411 No stop 22 18 40 --- 10 18 35 64.9 501.6 -1.1 -28.9 83 1422 22 17 11 22 18 40 SDSSJ1128+24 10 18 35 64.8 499.1 -1.2 -30.7 -7 1422 No stop 22 23 40 --- 10 23 36 65.4 501.5 -1.1 -29.1 293 1461 22 18 41 Schedule for MEDICINA (Code Mc ) Page 6 Observations of radio-quiet quasars: SDSSJ1128+2402 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 10 Mar 2023 Day 69 --- 22 24 20 J1124+2336 10 24 16 65.5 504.3 -1.0 -27.0 33 1461 22 24 20 22 25 50 --- 10 25 46 65.7 505.1 -1.0 -26.4 90 1472 22 24 21 22 25 50 SDSSJ1128+24 10 25 46 65.6 502.5 -1.1 -28.3 -7 1472 No stop 22 30 50 --- 10 30 47 66.2 505.0 -1.0 -26.6 293 1511 22 25 51 22 30 50 J1124+2336 10 30 47 66.2 507.6 -0.9 -24.6 -7 1511 No stop 22 32 20 --- 10 32 17 66.3 508.4 -0.9 -24.0 83 1523 22 30 51 22 32 20 SDSSJ1128+24 10 32 17 66.3 505.8 -1.0 -26.0 -7 1523 No stop 22 37 20 --- 10 37 18 66.8 508.4 -0.9 -24.1 293 1561 22 32 21 22 38 00 J1124+2336 10 37 58 66.8 511.4 -0.8 -21.8 32 1561 22 38 00 22 39 30 --- 10 39 28 67.0 512.2 -0.8 -21.2 90 1573 22 38 01 22 39 30 SDSSJ1128+24 10 39 28 67.0 509.5 -0.8 -23.3 -7 1573 No stop 22 44 30 --- 10 44 29 67.4 512.3 -0.8 -21.3 293 1612 22 39 31 22 44 30 J1124+2336 10 44 29 67.4 515.0 -0.7 -19.2 -8 1612 No stop 22 46 00 --- 10 45 59 67.5 515.9 -0.7 -18.5 82 1623 22 44 31 22 46 00 SDSSJ1128+24 10 45 59 67.6 513.1 -0.7 -20.7 -8 1623 No stop 22 51 00 --- 10 51 00 67.9 516.0 -0.6 -18.5 292 1662 22 46 01 22 51 40 J1124+2336 10 51 40 67.9 519.2 -0.6 -16.1 32 1662 22 51 40 22 53 10 --- 10 53 11 68.0 520.0 -0.5 -15.4 90 1673 22 51 41 22 53 10 SDSSJ1128+24 10 53 11 68.1 517.2 -0.6 -17.6 -8 1673 No stop 22 58 10 --- 10 58 11 68.4 520.2 -0.5 -15.3 292 1712 22 53 11 22 58 10 J1124+2336 10 58 11 68.2 523.0 -0.5 -13.1 -8 1712 No stop 22 59 40 --- 10 59 42 68.3 523.9 -0.4 -12.4 82 1724 22 58 11 22 59 40 SDSSJ1128+24 10 59 42 68.5 521.1 -0.5 -14.6 -8 1724 No stop 23 04 40 --- 11 04 42 68.8 524.1 -0.4 -12.3 292 1762 22 59 41 23 05 20 J1124+2336 11 05 23 68.6 527.4 -0.3 -9.7 32 1762 23 05 20 23 06 50 --- 11 06 53 68.6 528.4 -0.3 -9.0 90 1774 23 05 21 23 06 50 SDSSJ1128+24 11 06 53 68.9 525.5 -0.4 -11.3 -8 1774 No stop 23 11 50 --- 11 11 54 69.1 528.6 -0.3 -8.8 292 1812 23 06 51 23 11 50 J1124+2336 11 11 54 68.8 531.5 -0.2 -6.6 -8 1812 No stop 23 13 20 --- 11 13 24 68.8 532.4 -0.2 -5.9 82 1824 23 11 51 Schedule for MEDICINA (Code Mc ) Page 7 Observations of radio-quiet quasars: SDSSJ1128+2402 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 10 Mar 2023 Day 69 --- 23 13 20 SDSSJ1128+24 11 13 24 69.1 529.6 -0.3 -8.1 -8 1824 No stop 23 18 20 --- 11 18 25 69.3 532.8 -0.2 -5.6 292 1863 23 13 21 23 19 00 J1124+2336 11 19 05 68.9 536.0 -0.1 -3.1 32 1863 23 19 00 23 20 30 --- 11 20 35 68.9 537.0 -0.1 -2.3 90 1874 23 19 01 23 20 30 SDSSJ1128+24 11 20 35 69.3 534.2 -0.1 -4.5 -8 1874 No stop 23 25 30 --- 11 25 36 69.4 537.4 -0.1 -2.0 292 1913 23 20 31 23 25 30 J1124+2336 11 25 36 69.0 540.2 0.0 0.2 -8 1913 No stop 23 27 00 --- 11 27 06 69.0 541.2 0.0 0.9 82 1925 23 25 31 23 27 00 SDSSJ1128+24 11 27 06 69.4 538.4 -0.0 -1.2 -8 1925 No stop 23 32 00 --- 11 32 07 69.4 541.7 0.0 1.3 292 1963 23 27 01 23 32 40 J1124+2336 11 32 47 68.9 544.8 0.1 3.7 32 1963 23 32 40 23 34 10 --- 11 34 17 68.9 545.7 0.2 4.5 90 1975 23 32 41 23 34 10 SDSSJ1128+24 11 34 17 69.4 543.1 0.1 2.4 -7 1975 No stop 23 39 10 --- 11 39 18 69.3 546.3 0.2 4.9 293 2013 23 34 11 23 39 10 J1124+2336 11 39 18 68.8 548.9 0.2 6.9 -7 2013 No stop 23 40 40 --- 11 40 48 68.7 549.8 0.3 7.6 83 2025 23 39 11 23 40 40 SDSSJ1128+24 11 40 48 69.3 547.3 0.2 5.7 -7 2025 No stop 23 45 40 --- 11 45 49 69.1 550.5 0.3 8.2 293 2064 23 40 41 23 46 20 J1124+2336 11 46 29 68.5 553.4 0.4 10.4 33 2064 23 46 20 23 47 50 --- 11 48 00 68.5 554.3 0.4 11.1 90 2075 23 46 21 23 47 50 SDSSJ1128+24 11 48 00 69.0 551.9 0.3 9.2 -7 2075 No stop 23 52 50 --- 11 53 00 68.8 555.0 0.4 11.6 293 2114 23 47 51 23 52 50 J1124+2336 11 53 00 68.2 557.3 0.5 13.4 -7 2114 No stop 23 54 20 --- 11 54 31 68.1 558.2 0.5 14.1 83 2126 23 52 51 --- Start: Fri 10 Mar 2023 Day 69 -- Stop: Sat 11 Mar 2023 Day 70 --- ---------- Fringe Finder ---------- 23 56 20 3C273B 11 56 31 46.8 527.6 -0.6 -8.8 73 2126 23 56 20 00 01 20 --- 12 01 32 46.9 529.4 -0.5 -7.5 300 2164 23 56 21 00 03 20 SDSSJ1128+24 12 03 32 68.3 561.4 0.6 16.5 73 2164 00 03 20 00 08 20 --- 12 08 33 67.9 564.3 0.7 18.7 300 2203 00 03 21 Schedule for MEDICINA (Code Mc ) Page 8 Observations of radio-quiet quasars: SDSSJ1128+2402 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 11 Mar 2023 Day 70 --- 00 09 00 J1124+2336 12 09 13 67.1 566.7 0.7 20.5 33 2203 00 09 00 00 10 30 --- 12 10 43 67.0 567.5 0.8 21.1 90 2214 00 09 01 00 10 30 SDSSJ1128+24 12 10 43 67.7 565.6 0.7 19.7 -7 2214 No stop 00 15 30 --- 12 15 44 67.3 568.4 0.8 21.7 293 2253 00 10 31 00 15 30 J1124+2336 12 15 44 66.6 570.2 0.8 23.1 -6 2253 No stop 00 17 00 --- 12 17 14 66.4 571.0 0.9 23.6 84 2265 00 15 31 00 17 00 SDSSJ1128+24 12 17 14 67.2 569.2 0.8 22.4 -6 2265 No stop 00 22 00 --- 12 22 15 66.8 571.9 0.9 24.3 294 2303 00 17 01 00 22 40 J1124+2336 12 22 55 65.9 574.0 1.0 25.7 34 2303 00 22 40 00 24 10 --- 12 24 25 65.7 574.7 1.0 26.3 90 2315 00 22 41 00 24 10 SDSSJ1128+24 12 24 25 66.5 573.0 0.9 25.1 -6 2315 No stop 00 29 10 --- 12 29 26 66.0 575.6 1.0 27.0 294 2354 00 24 11 00 29 10 J1124+2336 12 29 26 65.2 577.2 1.1 28.0 -6 2354 No stop 00 30 40 --- 12 30 57 65.1 577.9 1.1 28.5 84 2365 00 29 11 00 30 40 SDSSJ1128+24 12 30 57 65.9 576.3 1.0 27.5 -6 2365 No stop 00 35 40 --- 12 35 57 65.3 578.8 1.1 29.2 294 2404 00 30 41 00 36 20 J1124+2336 12 36 37 64.4 580.6 1.2 30.4 34 2404 00 36 20 00 37 50 --- 12 38 08 64.2 581.3 1.2 30.8 90 2415 00 36 21 00 37 50 SDSSJ1128+24 12 38 08 65.1 579.8 1.1 29.9 -6 2415 No stop 00 42 50 --- 12 43 09 64.5 582.1 1.2 31.5 294 2454 00 37 51 00 42 50 J1124+2336 12 43 09 63.6 583.5 1.3 32.3 -6 2454 No stop 00 44 20 --- 12 44 39 63.4 584.1 1.3 32.8 84 2466 00 42 51 00 44 20 SDSSJ1128+24 12 44 39 64.3 582.8 1.3 32.0 -6 2466 No stop 00 49 20 --- 12 49 40 63.7 585.0 1.3 33.5 294 2504 00 44 21 00 50 00 J1124+2336 12 50 20 62.7 586.5 1.4 34.4 34 2504 00 50 00 00 51 30 --- 12 51 50 62.5 587.2 1.4 34.7 90 2516 00 50 01 00 51 30 SDSSJ1128+24 12 51 50 63.4 585.9 1.4 34.1 -6 2516 No stop 00 56 30 --- 12 56 51 62.8 588.0 1.5 35.4 294 2554 00 51 31 00 56 30 J1124+2336 12 56 51 61.9 589.2 1.5 36.0 -6 2554 No stop 00 58 00 --- 12 58 21 61.7 589.8 1.6 36.4 84 2566 00 56 31 Schedule for MEDICINA (Code Mc ) Page 9 Observations of radio-quiet quasars: SDSSJ1128+2402 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 11 Mar 2023 Day 70 --- 00 58 00 SDSSJ1128+24 12 58 21 62.6 588.6 1.5 35.8 -6 2566 No stop 01 03 00 --- 13 03 22 61.9 590.6 1.6 37.1 294 2605 00 58 01 01 03 40 J1124+2336 13 04 02 60.9 591.9 1.6 37.7 34 2605 01 03 40 01 05 10 --- 13 05 32 60.7 592.5 1.7 38.1 90 2616 01 03 41 01 05 10 SDSSJ1128+24 13 05 32 61.6 591.4 1.6 37.6 -6 2616 No stop 01 10 10 --- 13 10 33 60.9 593.3 1.7 38.7 294 2655 01 05 11 01 10 10 J1124+2336 13 10 33 59.9 594.3 1.8 39.1 -7 2655 No stop 01 11 40 --- 13 12 03 59.7 594.8 1.8 39.4 83 2667 01 10 11 01 11 40 SDSSJ1128+24 13 12 03 60.7 593.8 1.7 39.0 -6 2667 No stop 01 16 40 --- 13 17 04 59.9 595.6 1.8 40.1 294 2705 01 11 41 01 17 20 J1124+2336 13 17 44 58.9 596.8 1.9 40.6 33 2705 01 17 20 01 18 50 --- 13 19 14 58.7 597.3 1.9 40.8 90 2717 01 17 21 01 18 50 SDSSJ1128+24 13 19 14 59.6 596.4 1.8 40.5 -7 2717 No stop 01 23 50 --- 13 24 15 58.9 598.1 1.9 41.4 293 2755 01 18 51 01 23 50 J1124+2336 13 24 15 57.9 598.9 2.0 41.7 -7 2755 No stop 01 25 20 --- 13 25 46 57.7 599.4 2.0 42.0 83 2767 01 23 51 01 25 20 SDSSJ1128+24 13 25 46 58.6 598.6 1.9 41.7 -7 2767 No stop 01 30 20 --- 13 30 46 57.9 600.2 2.0 42.6 293 2806 01 25 21 01 31 00 J1124+2336 13 31 26 56.8 601.2 2.1 42.9 33 2806 01 31 00 01 32 30 --- 13 32 57 56.6 601.6 2.1 43.2 90 2817 01 31 01 01 32 30 SDSSJ1128+24 13 32 57 57.5 600.9 2.1 42.9 -7 2817 No stop 01 37 30 --- 13 37 58 56.8 602.4 2.1 43.7 293 2856 01 32 31 01 37 30 J1124+2336 13 37 58 55.8 603.1 2.2 43.9 -7 2856 No stop 01 39 00 --- 13 39 28 55.5 603.6 2.2 44.1 83 2868 01 37 31 01 39 00 SDSSJ1128+24 13 39 28 56.5 602.8 2.2 43.9 -7 2868 No stop 01 44 00 --- 13 44 29 55.7 604.3 2.2 44.7 293 2906 01 39 01 01 44 40 J1124+2336 13 45 09 54.6 605.2 2.3 44.9 33 2906 01 44 40 01 46 10 --- 13 46 39 54.4 605.6 2.4 45.1 90 2918 01 44 41 01 46 10 SDSSJ1128+24 13 46 39 55.4 604.9 2.3 45.0 -7 2918 No stop 01 51 10 --- 13 51 40 54.6 606.3 2.4 45.6 293 2956 01 46 11 Schedule for MEDICINA (Code Mc ) Page 10 Observations of radio-quiet quasars: SDSSJ1128+2402 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 11 Mar 2023 Day 70 --- 01 51 10 J1124+2336 13 51 40 53.6 607.0 2.4 45.7 -7 2956 No stop 01 52 40 --- 13 53 10 53.3 607.4 2.5 45.9 83 2968 01 51 11 01 52 40 SDSSJ1128+24 13 53 10 54.3 606.8 2.4 45.8 -7 2968 No stop 01 57 40 --- 13 58 11 53.5 608.1 2.5 46.4 293 3007 01 52 41 01 58 20 J1124+2336 13 58 51 52.4 608.9 2.6 46.5 33 3007 01 58 20 01 59 50 --- 14 00 21 52.1 609.3 2.6 46.6 90 3018 01 58 21 01 59 50 SDSSJ1128+24 14 00 21 53.1 608.7 2.5 46.6 -7 3018 No stop 02 04 50 --- 14 05 22 52.3 610.0 2.6 47.1 293 3057 01 59 51 02 04 50 J1124+2336 14 05 22 51.3 610.5 2.7 47.1 -7 3057 No stop 02 06 20 --- 14 06 52 51.0 610.9 2.7 47.3 83 3068 02 04 51 02 06 20 SDSSJ1128+24 14 06 52 52.0 610.4 2.6 47.3 -7 3068 No stop 02 11 20 --- 14 11 53 51.2 611.6 2.7 47.7 293 3107 02 06 21 02 12 00 J1124+2336 14 12 33 50.1 612.3 2.8 47.8 33 3107 02 12 00 02 13 30 --- 14 14 03 49.8 612.7 2.8 47.9 90 3119 02 12 01 02 13 30 SDSSJ1128+24 14 14 03 50.8 612.1 2.7 47.9 -7 3119 No stop 02 18 30 --- 14 19 04 50.0 613.3 2.8 48.3 293 3157 02 13 31 02 18 30 J1124+2336 14 19 04 49.0 613.8 2.9 48.3 -7 3157 No stop 02 20 00 --- 14 20 35 48.7 614.2 2.9 48.4 83 3169 02 18 31 ---------- Fringe Finder ---------- 02 22 10 3C273B 14 22 45 40.7 578.4 1.9 26.3 78 3169 02 22 10 02 27 10 --- 14 27 46 40.1 579.9 2.0 27.2 300 3208 02 22 11 02 29 20 SDSSJ1128+24 14 29 56 48.1 615.8 3.0 49.1 79 3208 02 29 20 02 34 20 --- 14 34 57 47.2 616.9 3.1 49.4 300 3246 02 29 21 02 35 00 J1124+2336 14 35 37 46.1 617.5 3.2 49.4 33 3246 02 35 00 02 36 30 --- 14 37 07 45.8 617.9 3.2 49.5 90 3258 02 35 01 02 36 30 SDSSJ1128+24 14 37 07 46.9 617.4 3.1 49.6 -7 3258 No stop 02 41 30 --- 14 42 08 46.0 618.5 3.2 49.8 293 3296 02 36 31 02 41 30 J1124+2336 14 42 08 45.0 618.9 3.3 49.7 -7 3296 No stop 02 43 00 --- 14 43 38 44.7 619.2 3.3 49.8 83 3308 02 41 31 Schedule for MEDICINA (Code Mc ) Page 11 Observations of radio-quiet quasars: SDSSJ1128+2402 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 11 Mar 2023 Day 70 --- 02 43 00 SDSSJ1128+24 14 43 38 45.7 618.8 3.2 49.9 -7 3308 No stop 02 48 00 --- 14 48 39 44.8 619.9 3.3 50.1 293 3347 02 43 01 02 48 40 J1124+2336 14 49 19 43.7 620.4 3.4 50.0 33 3347 02 48 40 02 50 10 --- 14 50 49 43.4 620.7 3.4 50.1 90 3358 02 48 41 02 50 10 SDSSJ1128+24 14 50 49 44.5 620.3 3.4 50.2 -7 3358 No stop 02 55 10 --- 14 55 50 43.6 621.3 3.4 50.4 293 3397 02 50 11 02 55 10 J1124+2336 14 55 50 42.6 621.7 3.5 50.3 -7 3397 No stop 02 56 40 --- 14 57 21 42.3 622.0 3.5 50.3 83 3409 02 55 11 02 56 40 SDSSJ1128+24 14 57 21 43.3 621.6 3.5 50.5 -7 3409 No stop 03 01 40 --- 15 02 21 42.4 622.6 3.5 50.7 293 3447 02 56 41 03 02 20 J1124+2336 15 03 01 41.3 623.1 3.6 50.5 33 3447 03 02 20 03 03 50 --- 15 04 32 41.0 623.4 3.7 50.6 90 3459 03 02 21 03 03 50 SDSSJ1128+24 15 04 32 42.0 623.0 3.6 50.7 -7 3459 No stop 03 08 50 --- 15 09 33 41.2 624.0 3.7 50.9 293 3497 03 03 51 03 08 50 J1124+2336 15 09 33 40.1 624.4 3.7 50.7 -7 3497 No stop 03 10 20 --- 15 11 03 39.9 624.7 3.8 50.7 83 3509 03 08 51 03 10 20 SDSSJ1128+24 15 11 03 40.9 624.3 3.7 50.9 -7 3509 No stop 03 15 20 --- 15 16 04 40.0 625.2 3.8 51.0 293 3548 03 10 21 03 16 00 J1124+2336 15 16 44 38.9 625.7 3.9 50.8 33 3548 03 16 00 03 17 30 --- 15 18 14 38.6 626.0 3.9 50.9 90 3559 03 16 01 03 17 30 SDSSJ1128+24 15 18 14 39.6 625.6 3.8 51.0 -7 3559 No stop 03 22 30 --- 15 23 15 38.7 626.6 3.9 51.1 293 3598 03 17 31 03 22 30 J1124+2336 15 23 15 37.7 626.9 4.0 50.9 -7 3598 No stop 03 24 00 --- 15 24 45 37.4 627.2 4.0 50.9 83 3610 03 22 31 03 24 00 SDSSJ1128+24 15 24 45 38.4 626.8 3.9 51.1 -7 3610 No stop 03 29 00 --- 15 29 46 37.6 627.8 4.0 51.2 293 3648 03 24 01 03 29 40 J1124+2336 15 30 26 36.4 628.2 4.1 51.0 33 3648 03 29 40 03 31 10 --- 15 31 56 36.1 628.5 4.1 51.0 90 3660 03 29 41 03 31 10 SDSSJ1128+24 15 31 56 37.2 628.2 4.0 51.2 -7 3660 No stop 03 36 10 --- 15 36 57 36.3 629.0 4.1 51.2 293 3698 03 31 11 Schedule for MEDICINA (Code Mc ) Page 12 Observations of radio-quiet quasars: SDSSJ1128+2402 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 11 Mar 2023 Day 70 --- 03 36 10 J1124+2336 15 36 57 35.3 629.4 4.2 51.0 -7 3698 No stop 03 37 40 --- 15 38 27 35.0 629.7 4.2 51.0 83 3710 03 36 11 03 37 40 SDSSJ1128+24 15 38 27 36.0 629.3 4.1 51.2 -7 3710 No stop 03 42 40 --- 15 43 28 35.1 630.2 4.2 51.3 293 3749 03 37 41 03 43 20 J1124+2336 15 44 08 34.0 630.7 4.3 51.0 33 3749 03 43 20 03 44 50 --- 15 45 38 33.7 630.9 4.3 51.0 90 3760 03 43 21 03 44 50 SDSSJ1128+24 15 45 38 34.7 630.6 4.3 51.3 -7 3760 No stop 03 49 50 --- 15 50 39 33.8 631.4 4.4 51.2 293 3799 03 44 51 03 49 50 J1124+2336 15 50 39 32.8 631.8 4.4 51.0 -7 3799 No stop 03 51 20 --- 15 52 10 32.5 632.0 4.4 51.0 83 3810 03 49 51 03 51 20 SDSSJ1128+24 15 52 10 33.6 631.7 4.4 51.2 -7 3810 No stop 03 56 20 --- 15 57 10 32.7 632.6 4.5 51.2 293 3849 03 51 21 03 57 00 J1124+2336 15 57 50 31.5 633.0 4.5 50.9 33 3849 03 57 00 03 58 30 --- 15 59 21 31.3 633.3 4.6 50.9 90 3861 03 57 01 03 58 30 SDSSJ1128+24 15 59 21 32.3 632.9 4.5 51.2 -7 3861 No stop 04 03 30 --- 16 04 22 31.4 633.8 4.6 51.1 293 3899 03 58 31 04 03 30 J1124+2336 16 04 22 30.4 634.1 4.7 50.8 -7 3899 No stop 04 05 00 --- 16 05 52 30.1 634.4 4.7 50.8 83 3911 04 03 31 04 05 00 SDSSJ1128+24 16 05 52 31.1 634.0 4.6 51.1 -7 3911 No stop 04 10 00 --- 16 10 53 30.2 634.9 4.7 51.0 293 3950 04 05 01 04 10 40 J1124+2336 16 11 33 29.1 635.3 4.8 50.7 33 3950 04 10 40 04 12 10 --- 16 13 03 28.8 635.6 4.8 50.7 90 3961 04 10 41 04 12 10 SDSSJ1128+24 16 13 03 29.8 635.2 4.7 51.0 -7 3961 No stop 04 17 10 --- 16 18 04 29.0 636.1 4.8 50.9 293 4000 04 12 11 04 17 10 J1124+2336 16 18 04 27.9 636.4 4.9 50.6 -7 4000 No stop 04 18 40 --- 16 19 34 27.7 636.6 4.9 50.6 83 4011 04 17 11 04 18 40 SDSSJ1128+24 16 19 34 28.7 636.3 4.8 50.8 -7 4011 No stop 04 23 40 --- 16 24 35 27.8 637.1 4.9 50.7 293 4050 04 18 41 04 24 20 J1124+2336 16 25 15 26.7 637.6 5.0 50.4 33 4050 04 24 20 04 25 50 --- 16 26 45 26.4 637.8 5.0 50.4 90 4062 04 24 21 Schedule for MEDICINA (Code Mc ) Page 13 Observations of radio-quiet quasars: SDSSJ1128+2402 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 11 Mar 2023 Day 70 --- 04 25 50 SDSSJ1128+24 16 26 45 27.4 637.5 5.0 50.7 -7 4062 No stop 04 30 50 --- 16 31 46 26.5 638.3 5.0 50.5 293 4100 04 25 51 04 30 50 J1124+2336 16 31 46 25.5 638.6 5.1 50.2 -7 4100 No stop 04 32 20 --- 16 33 16 25.2 638.9 5.1 50.2 83 4112 04 30 51 04 32 20 SDSSJ1128+24 16 33 16 26.3 638.5 5.1 50.5 -7 4112 No stop 04 37 20 --- 16 38 17 25.4 639.4 5.1 50.3 293 4151 04 32 21 04 38 00 J1124+2336 16 38 57 24.2 639.8 5.2 50.0 33 4151 04 38 00 04 39 30 --- 16 40 27 24.0 640.0 5.3 50.0 90 4162 04 38 01 04 39 30 SDSSJ1128+24 16 40 27 25.0 639.7 5.2 50.2 -7 4162 No stop 04 44 30 --- 16 45 28 24.1 640.5 5.3 50.1 293 4201 04 39 31 04 44 30 J1124+2336 16 45 28 23.1 640.8 5.3 49.8 -7 4201 No stop 04 46 00 --- 16 46 58 22.8 641.1 5.4 49.7 83 4212 04 44 31 04 46 00 SDSSJ1128+24 16 46 58 23.9 640.8 5.3 50.0 -7 4212 No stop 04 51 00 --- 16 51 59 23.0 641.6 5.4 49.8 293 4251 04 46 01 04 51 00 J1124+2336 16 51 59 22.0 641.9 5.4 49.5 -7 4251 No stop 04 52 30 --- 16 53 30 21.7 642.1 5.5 49.5 83 4263 04 51 01 ---------- Fringe Finder ---------- 04 55 00 3C273B 16 56 00 18.0 614.4 4.4 43.4 109 4263 04 55 00 05 00 00 --- 17 01 01 17.1 615.3 4.5 43.6 300 4301 04 55 01 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: 7 Station: MEDICINA 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= 1295.00 1295.00 1295.00 1295.00 1295.00 1295.00 1295.00 1295.00 Net SB= L L U U L L U U IF SB = U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 9 1 9 2 10 2 10 BBC SB= L L U U L L U U IF = A1 C1 A1 C1 A1 C1 A1 C1 The following frequency sets based on these setups were used. Frequency Set: 2 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= 331.49 331.49 331.49 331.49 395.49 395.49 395.49 395.49 Bandwd= 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 Matching frequency sets: 2 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) * SDSSJ1128+24 11 25 40.448459 * 11 28 18.510000 11 29 32.676867 0.00 24 18 49.09613 * 24 02 17.50000 23 54 34.03214 0.00 From catalog imbedded in main SCHED input file. * J1124+2336 11 21 24.189204 * 11 24 02.705900 11 25 17.074232 0.00 23 53 14.61926 * 23 36 45.87000 23 29 03.91244 0.00 From catalog imbedded in main SCHED input file. * 4C39.25 09 23 55.319219 * 09 27 03.013940 09 28 30.850788 0.00 39 15 23.56640 * 39 02 20.85180 38 56 21.86878 0.00 From catalog imbedded in main SCHED input file. * 3C273B 12 26 33.245835 * 12 29 06.699731 12 30 18.478700 1.03 J1229+0203 02 19 43.30570 * 02 03 08.59820 01 55 22.32873 1.38 3C273 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc 1226+023 GSFC 2016a X/S astro solution, 32136 observations. J1229+02 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 SDSSJ1128+2sess123.L1024 1 2 3 4 5 6 7 8 9 14 15 6.750 551.254 J1124+2336 sess123.L1024 1 2 3 4 5 6 7 8 9 14 15 2.108 152.203 4C39.25 sess123.L1024 1 2 3 4 5 6 7 8 9 14 15 0.083 8.750 3C273B sess123.L1024 1 2 3 4 5 6 7 8 9 14 15 0.333 28.269 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) SDSSJ1128+24 159.9 J1124+2336 160.4 4C39.25 136.3 3C273B 163.3 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