COVER INFORMATION Station: CAMBG32M (Code Cm ) Experiment: EVN observations of CSOs at 1.3cm (Session 1) Exp. Code: EY045A Schedule Version: 2.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: Xi Yan Address: Calaxy and Cosmology Group Xinjiang Astronomical Observatory (XAO), CAS 150 Science 1-Street, Urumqi 830011, China Phone: +86 17335173376 EMAIL: yanxi@xao.ac.cn Fax: Phone during observation: +86 17335173376 Observing mode: vlbi Notes: Target: J0111+3906 (relatively strong, 250~400 mJy) and 0402+379 (through phase-referencing) Fringe Finder: J0422+5324 (1.3 Jy at 22GHz) Phase-referencing calibrator of 0402+379: J0355+3909 (0.26mJy at 22GHz, relatively compact, 2.33 degrees apart on the sky) Schedule for CAMBG32M (Code Cm ) Page 2 EVN observations of CSOs at 1.3cm (Session 1) UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Tue 25 Feb 2025 Day 56 --- Next scan frequencies: 22235.49 22235.49 Next BBC frequencies: 780.51 780.51 Next scan bandwidths: 64.00 64.00 09 30 00 3C454.3 19 52 09 39.2 477.4 -3.1 -34.5 0 0 09 30 00 09 34 00 --- 19 56 10 39.8 478.5 -3.0 -34.2 240 15 09 30 01 09 37 00 J0111+3906 19 59 10 36.5 430.7 -5.2 -48.4 80 15 09 37 00 09 40 00 =0108+388 20 02 11 36.9 431.2 -5.2 -48.6 180 27 09 37 01 09 40 30 J0111+3906 20 02 41 37.0 431.3 -5.2 -48.6 27 27 09 40 30 09 54 00 =0108+388 20 16 13 39.0 433.4 -4.9 -49.4 810 79 09 40 31 09 54 30 J0111+3906 20 16 43 39.0 433.5 -4.9 -49.4 27 79 09 54 30 10 08 00 =0108+388 20 30 15 41.0 435.7 -4.7 -50.1 810 131 09 54 31 10 08 30 J0111+3906 20 30 45 41.1 435.8 -4.7 -50.2 27 131 10 08 30 10 22 00 =0108+388 20 44 18 43.1 438.1 -4.5 -50.8 810 184 10 08 31 10 22 30 J0111+3906 20 44 48 43.2 438.2 -4.5 -50.8 27 184 10 22 30 10 36 00 =0108+388 20 58 20 45.3 440.5 -4.2 -51.4 810 236 10 22 31 10 36 30 J0111+3906 20 58 50 45.3 440.5 -4.2 -51.4 27 236 10 36 30 10 50 00 =0108+388 21 12 22 47.4 442.9 -4.0 -51.8 810 288 10 36 31 10 50 30 J0111+3906 21 12 52 47.5 443.0 -4.0 -51.8 27 288 10 50 30 11 04 00 =0108+388 21 26 24 49.5 445.4 -3.8 -52.1 810 340 10 50 31 11 04 30 J0111+3906 21 26 55 49.6 445.5 -3.8 -52.1 27 340 11 04 30 11 18 00 =0108+388 21 40 27 51.7 448.0 -3.5 -52.3 810 392 11 04 31 11 18 30 J0111+3906 21 40 57 51.8 448.1 -3.5 -52.3 27 392 11 18 30 11 32 00 =0108+388 21 54 29 53.8 450.8 -3.3 -52.4 810 444 11 18 31 11 32 30 J0111+3906 21 54 59 53.9 450.9 -3.3 -52.4 27 444 11 32 30 11 40 00 =0108+388 22 02 30 55.1 452.4 -3.2 -52.3 450 473 11 32 31 11 40 30 J0111+3906 22 03 00 55.1 452.5 -3.2 -52.3 27 473 11 40 30 11 50 30 =0108+388 22 13 02 56.7 454.6 -3.0 -52.1 600 512 11 40 31 11 52 30 J0355+3909 22 15 02 32.5 426.3 -5.7 -46.5 30 512 11 52 30 11 53 30 --- 22 16 03 32.6 426.4 -5.7 -46.5 60 516 11 52 31 11 53 30 0402+379 22 16 03 30.4 425.7 -5.9 -45.3 -22 516 No stop 11 54 50 --- 22 17 23 30.6 425.9 -5.8 -45.4 58 521 11 53 31 Schedule for CAMBG32M (Code Cm ) Page 3 EVN observations of CSOs at 1.3cm (Session 1) UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Tue 25 Feb 2025 Day 56 --- 11 54 50 J0355+3909 22 17 23 32.8 426.6 -5.7 -46.6 -22 521 No stop 11 56 10 --- 22 18 43 33.0 426.8 -5.6 -46.7 58 526 11 54 51 11 56 10 0402+379 22 18 43 30.7 426.1 -5.8 -45.5 -22 526 No stop 11 57 30 --- 22 20 03 30.9 426.3 -5.8 -45.6 58 531 11 56 11 11 57 30 J0355+3909 22 20 03 33.2 427.1 -5.6 -46.8 -22 531 No stop 11 58 50 --- 22 21 23 33.4 427.3 -5.6 -46.9 58 537 11 57 31 11 58 50 0402+379 22 21 23 31.1 426.5 -5.8 -45.7 -22 537 No stop 12 00 10 --- 22 22 44 31.3 426.7 -5.7 -45.8 58 542 11 58 51 12 00 10 J0355+3909 22 22 44 33.6 427.5 -5.6 -47.0 -22 542 No stop 12 01 30 --- 22 24 04 33.7 427.7 -5.5 -47.1 58 547 12 00 11 12 01 30 0402+379 22 24 04 31.5 427.0 -5.7 -45.8 -22 547 No stop 12 02 50 --- 22 25 24 31.7 427.2 -5.7 -45.9 58 552 12 01 31 12 02 50 J0355+3909 22 25 24 33.9 427.9 -5.5 -47.2 -22 552 No stop 12 04 10 --- 22 26 44 34.1 428.1 -5.5 -47.3 58 557 12 02 51 12 04 10 0402+379 22 26 44 31.9 427.4 -5.7 -46.0 -22 557 No stop 12 05 30 --- 22 28 05 32.1 427.6 -5.7 -46.1 58 562 12 04 11 12 06 30 J0355+3909 22 29 05 34.5 428.5 -5.5 -47.4 38 562 12 06 30 12 07 50 --- 22 30 25 34.7 428.7 -5.4 -47.5 80 567 12 06 31 12 07 50 0402+379 22 30 25 32.4 428.0 -5.6 -46.3 -22 567 No stop 12 09 10 --- 22 31 45 32.6 428.2 -5.6 -46.4 58 573 12 07 51 12 09 10 J0355+3909 22 31 45 34.8 428.9 -5.4 -47.6 -22 573 No stop 12 10 30 --- 22 33 05 35.0 429.1 -5.4 -47.7 58 578 12 09 11 12 10 30 0402+379 22 33 05 32.8 428.4 -5.6 -46.5 -22 578 No stop 12 11 50 --- 22 34 26 33.0 428.6 -5.6 -46.6 58 583 12 10 31 12 11 50 J0355+3909 22 34 26 35.2 429.3 -5.4 -47.8 -22 583 No stop 12 13 10 --- 22 35 46 35.4 429.5 -5.4 -47.9 58 588 12 11 51 12 13 10 0402+379 22 35 46 33.2 428.8 -5.5 -46.6 -22 588 No stop 12 14 30 --- 22 37 06 33.4 429.0 -5.5 -46.7 58 593 12 13 11 12 14 30 J0355+3909 22 37 06 35.6 429.8 -5.3 -48.0 -22 593 No stop 12 15 50 --- 22 38 26 35.8 430.0 -5.3 -48.1 58 598 12 14 31 Schedule for CAMBG32M (Code Cm ) Page 4 EVN observations of CSOs at 1.3cm (Session 1) UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Tue 25 Feb 2025 Day 56 --- 12 15 50 0402+379 22 38 26 33.5 429.3 -5.5 -46.8 -22 598 No stop 12 17 10 --- 22 39 46 33.7 429.5 -5.5 -46.9 58 604 12 15 51 12 17 10 J0355+3909 22 39 46 36.0 430.2 -5.3 -48.2 -22 604 No stop 12 18 30 --- 22 41 07 36.2 430.4 -5.3 -48.2 58 609 12 17 11 12 18 30 0402+379 22 41 07 33.9 429.7 -5.4 -47.0 -22 609 No stop 12 19 50 --- 22 42 27 34.1 429.9 -5.4 -47.1 58 614 12 18 31 12 20 50 J0355+3909 22 43 27 36.5 430.8 -5.2 -48.4 38 614 12 20 50 12 22 10 --- 22 44 47 36.7 431.0 -5.2 -48.5 80 619 12 20 51 12 22 10 0402+379 22 44 47 34.5 430.3 -5.4 -47.2 -22 619 No stop 12 23 30 --- 22 46 07 34.7 430.5 -5.4 -47.3 58 624 12 22 11 12 23 30 J0355+3909 22 46 07 36.9 431.2 -5.2 -48.6 -22 624 No stop 12 24 50 --- 22 47 28 37.1 431.4 -5.2 -48.6 58 629 12 23 31 12 24 50 0402+379 22 47 28 34.8 430.7 -5.3 -47.4 -22 629 No stop 12 26 10 --- 22 48 48 35.0 430.9 -5.3 -47.5 58 634 12 24 51 12 26 10 J0355+3909 22 48 48 37.3 431.6 -5.1 -48.7 -22 634 No stop 12 27 30 --- 22 50 08 37.5 431.8 -5.1 -48.8 58 640 12 26 11 12 27 30 0402+379 22 50 08 35.2 431.2 -5.3 -47.6 -22 640 No stop 12 28 50 --- 22 51 28 35.4 431.4 -5.3 -47.6 58 645 12 27 31 12 28 50 J0355+3909 22 51 28 37.7 432.1 -5.1 -48.9 -22 645 No stop 12 30 10 --- 22 52 49 37.9 432.3 -5.1 -49.0 58 650 12 28 51 12 30 10 0402+379 22 52 49 35.6 431.6 -5.2 -47.7 -22 650 No stop 12 31 30 --- 22 54 09 35.8 431.8 -5.2 -47.8 58 655 12 30 11 12 31 30 J0355+3909 22 54 09 38.1 432.5 -5.0 -49.0 -22 655 No stop 12 32 50 --- 22 55 29 38.3 432.7 -5.0 -49.1 58 660 12 31 31 12 32 50 0402+379 22 55 29 36.0 432.0 -5.2 -47.9 -22 660 No stop 12 34 10 --- 22 56 49 36.2 432.2 -5.2 -48.0 58 665 12 32 51 12 35 10 J0355+3909 22 57 49 38.6 433.1 -5.0 -49.2 38 665 12 35 10 12 36 30 --- 22 59 10 38.8 433.3 -5.0 -49.3 80 671 12 35 11 12 36 30 0402+379 22 59 10 36.5 432.6 -5.1 -48.1 -22 671 No stop 12 37 50 --- 23 00 30 36.7 432.8 -5.1 -48.2 58 676 12 36 31 Schedule for CAMBG32M (Code Cm ) Page 5 EVN observations of CSOs at 1.3cm (Session 1) UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Tue 25 Feb 2025 Day 56 --- 12 37 50 J0355+3909 23 00 30 39.0 433.5 -4.9 -49.4 -22 676 No stop 12 39 10 --- 23 01 50 39.2 433.7 -4.9 -49.5 58 681 12 37 51 12 39 10 0402+379 23 01 50 36.9 433.1 -5.1 -48.2 -22 681 No stop 12 40 30 --- 23 03 10 37.1 433.3 -5.1 -48.3 58 686 12 39 11 12 40 30 J0355+3909 23 03 10 39.4 434.0 -4.9 -49.5 -22 686 No stop 12 41 50 --- 23 04 31 39.6 434.2 -4.9 -49.6 58 691 12 40 31 12 41 50 0402+379 23 04 31 37.3 433.5 -5.0 -48.4 -22 691 No stop 12 43 10 --- 23 05 51 37.5 433.7 -5.0 -48.5 58 696 12 41 51 12 43 10 J0355+3909 23 05 51 39.8 434.4 -4.9 -49.7 -22 696 No stop 12 44 30 --- 23 07 11 40.0 434.6 -4.8 -49.8 58 701 12 43 11 12 44 30 0402+379 23 07 11 37.7 433.9 -5.0 -48.5 -22 701 No stop 12 45 50 --- 23 08 31 37.9 434.2 -5.0 -48.6 58 707 12 44 31 12 45 50 J0355+3909 23 08 31 40.2 434.8 -4.8 -49.8 -22 707 No stop 12 47 10 --- 23 09 51 40.4 435.0 -4.8 -49.9 58 712 12 45 51 12 47 10 0402+379 23 09 51 38.1 434.4 -5.0 -48.7 -22 712 No stop 12 48 30 --- 23 11 12 38.3 434.6 -4.9 -48.7 58 717 12 47 11 12 49 30 J0355+3909 23 12 12 40.7 435.4 -4.7 -50.0 38 717 12 49 30 12 50 50 --- 23 13 32 40.9 435.6 -4.7 -50.1 80 722 12 49 31 12 50 50 0402+379 23 13 32 38.7 435.0 -4.9 -48.9 -22 722 No stop 12 52 10 --- 23 14 52 38.9 435.2 -4.9 -48.9 58 727 12 50 51 12 52 10 J0355+3909 23 14 52 41.1 435.9 -4.7 -50.2 -22 727 No stop 12 53 30 --- 23 16 12 41.3 436.1 -4.7 -50.2 58 732 12 52 11 12 53 30 0402+379 23 16 12 39.1 435.4 -4.9 -49.0 -22 732 No stop 12 54 50 --- 23 17 33 39.3 435.7 -4.8 -49.1 58 737 12 53 31 12 54 50 J0355+3909 23 17 33 41.5 436.3 -4.7 -50.3 -22 737 No stop 12 56 10 --- 23 18 53 41.7 436.5 -4.6 -50.4 58 743 12 54 51 12 56 10 0402+379 23 18 53 39.5 435.9 -4.8 -49.1 -22 743 No stop 12 57 30 --- 23 20 13 39.7 436.1 -4.8 -49.2 58 748 12 56 11 12 57 30 J0355+3909 23 20 13 41.9 436.8 -4.6 -50.4 -22 748 No stop 12 58 50 --- 23 21 33 42.1 437.0 -4.6 -50.5 58 753 12 57 31 Schedule for CAMBG32M (Code Cm ) Page 6 EVN observations of CSOs at 1.3cm (Session 1) UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Tue 25 Feb 2025 Day 56 --- 12 58 50 0402+379 23 21 33 39.9 436.3 -4.8 -49.3 -22 753 No stop 13 00 10 --- 23 22 54 40.1 436.6 -4.7 -49.3 58 758 12 58 51 13 00 10 J0355+3909 23 22 54 42.3 437.2 -4.6 -50.5 -22 758 No stop 13 01 30 --- 23 24 14 42.5 437.4 -4.5 -50.6 58 763 13 00 11 13 01 30 0402+379 23 24 14 40.3 436.8 -4.7 -49.4 -22 763 No stop 13 02 50 --- 23 25 34 40.5 437.0 -4.7 -49.4 58 768 13 01 31 13 03 50 J0355+3909 23 26 34 42.9 437.8 -4.5 -50.7 38 768 13 03 50 13 05 10 --- 23 27 54 43.1 438.0 -4.5 -50.8 80 774 13 03 51 13 05 10 0402+379 23 27 54 40.8 437.4 -4.7 -49.5 -22 774 No stop 13 06 30 --- 23 29 15 41.0 437.6 -4.6 -49.6 58 779 13 05 11 13 06 30 J0355+3909 23 29 15 43.3 438.3 -4.5 -50.8 -22 779 No stop 13 07 50 --- 23 30 35 43.5 438.5 -4.4 -50.9 58 784 13 06 31 13 07 50 0402+379 23 30 35 41.2 437.8 -4.6 -49.7 -22 784 No stop 13 09 10 --- 23 31 55 41.4 438.1 -4.6 -49.7 58 789 13 07 51 13 09 10 J0355+3909 23 31 55 43.7 438.7 -4.4 -50.9 -22 789 No stop 13 10 30 --- 23 33 15 43.9 438.9 -4.4 -51.0 58 794 13 09 11 13 10 30 0402+379 23 33 15 41.6 438.3 -4.6 -49.8 -22 794 No stop 13 11 50 --- 23 34 35 41.8 438.5 -4.5 -49.8 58 799 13 10 31 13 11 50 J0355+3909 23 34 35 44.1 439.2 -4.4 -51.0 -22 799 No stop 13 13 10 --- 23 35 56 44.3 439.4 -4.4 -51.1 58 804 13 11 51 13 13 10 0402+379 23 35 56 42.0 438.8 -4.5 -49.9 -22 804 No stop 13 14 30 --- 23 37 16 42.2 439.0 -4.5 -49.9 58 810 13 13 11 13 14 30 J0355+3909 23 37 16 44.5 439.6 -4.3 -51.2 -22 810 No stop 13 15 50 --- 23 38 36 44.7 439.8 -4.3 -51.2 58 815 13 14 31 13 15 50 0402+379 23 38 36 42.4 439.2 -4.5 -50.0 -22 815 No stop 13 17 10 --- 23 39 56 42.6 439.4 -4.5 -50.0 58 820 13 15 51 13 18 10 J0355+3909 23 40 56 45.1 440.2 -4.3 -51.3 38 820 13 18 10 13 19 30 --- 23 42 17 45.3 440.5 -4.2 -51.3 80 825 13 18 11 13 19 30 0402+379 23 42 17 43.0 439.8 -4.4 -50.1 -22 825 No stop 13 20 50 --- 23 43 37 43.2 440.1 -4.4 -50.2 58 830 13 19 31 Schedule for CAMBG32M (Code Cm ) Page 7 EVN observations of CSOs at 1.3cm (Session 1) UP: D => Below limits; H => Below horizon mask; W => still slewing at end; blank => Up. Early: Seconds between end of slew and start. Dwell: On source seconds. Disk: GBytes recorded to this point. TPStart: Recording start time. Frequencies are LO sum (band edge). SYNC: Time correlator is expected to sync up. ---------------------------------------------------------------------------------------- Start UT Source Start / Stop Early Disk TPStart Stop UT LST EL AZ HA UP ParA Dwell GBytes SYNC ---------------------------------------------------------------------------------------- --- Tue 25 Feb 2025 Day 56 --- 13 20 50 J0355+3909 23 43 37 45.5 440.7 -4.2 -51.4 -22 830 No stop 13 22 10 --- 23 44 57 45.7 440.9 -4.2 -51.4 58 835 13 20 51 13 24 10 J0422+5324 23 46 57 49.7 419.5 -4.6 -62.7 60 835 13 24 10 13 29 10 =0418+532 23 51 58 50.4 420.1 -4.5 -63.3 300 855 13 24 11 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess125.K2048 --- 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: CAMBG32M 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= 23016.00 23016.00 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= 22235.49 22235.49 BBC fr= 780.51 780.51 Bandwd= 64.00 64.00 Matching frequency sets: 14 15 16 17 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) * J0355+3909 03 51 56.635287 * 03 55 16.590900 03 56 57.142590 0.00 39 00 24.86250 * 39 09 09.80500 39 13 43.96170 0.00 From catalog imbedded in main SCHED input file. 0108+388 01 08 47.254574 * 01 11 37.316770 01 13 01.585478 0.05 * J0111+3906 38 50 32.81430 * 39 06 28.10393 39 14 33.46890 0.05 J0111+39 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 644 observations. * 0402+379 04 02 29.863331 * 04 05 49.262754 04 07 29.616698 0.18 J0405+3803 37 55 27.11233 * 38 03 32.23441 38 07 46.08933 0.18 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 92 observations. 0418+532 04 18 49.157437 * 04 22 44.398872 04 24 42.988240 0.22 * J0422+5324 53 17 25.97780 * 53 24 26.26326 53 28 11.74196 0.22 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 62 observations. * 3C454.3 22 51 29.519739 * 22 53 57.747939 22 55 10.938013 0.65 J2253+1608 15 52 54.34808 * 16 08 53.56091 16 16 48.88479 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 J0355+3909 sess125.K2048 1 2 3 6 7 8 10 11 12 13 14 + 0.706 74.836 J0111+3906 sess125.K2048 1 2 3 6 7 8 10 11 12 13 14 + 2.142 320.717 0402+379 sess125.K2048 1 2 3 6 7 8 10 11 12 13 14 + 0.689 68.076 J0422+5324 sess125.K2048 1 2 3 6 7 8 10 11 12 13 14 + 0.083 11.333 3C454.3 sess125.K2048 1 2 3 6 7 8 10 11 12 13 14 + 0.067 10.200 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) J0355+3909 88.3 J0111+3906 60.4 0402+379 90.1 J0422+5324 95.6 3C454.3 25.7 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