COVER INFORMATION Station: ZELENCHK (Code Zc ) Experiment: Fine-scale imaging of M87 Exp. Code: gs042 Schedule Version: 1.00 Processed by SCHED version: 11.40 Release 11.4. March 14, 2015 PI: Tuomas Savolainen Address: Aalto University Metsahovi Radio Observatory Metsahovintie 114, 02540 Kylmala, Finland Phone: +358505819717 EMAIL: tuomas.k.savolainen@aalto.fi Fax: Phone during observation: +358505819717 Observing mode: K-band dual-pol Notes: K-band, Radioastron-compatible frequency setup P-CAL is ON Tsys is ON auto-level (AGC) is ON Schedule for ZELENCHK (Code Zc ) Page 2 Fine-scale imaging of M87 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 ---------------------------------------------------------------------------------------- --- Mon 14 May 2018 Day 134 --- Next scan frequencies: 22236.00 22236.00 22236.00 22236.00 Next BBC frequencies: 316.00 316.00 316.00 316.00 Next scan bandwidths: 16.00 16.00 16.00 16.00 12 43 50 1156+295 06 58 57 29.7 436.7 -5.0 -53.6 0 0 12 43 50 12 45 30 --- 07 00 37 30.0 437.0 -5.0 -53.6 100 3 12 43 51 12 46 10 1156+295 07 01 17 30.2 437.1 -5.0 -53.7 34 3 12 46 10 12 50 20 --- 07 05 28 30.9 437.7 -4.9 -53.9 250 11 12 46 11 12 50 50 1236+077 07 05 58 9.7 449.0 -5.6 D -46.7 -27 11 12 50 50 12 52 50 --- 07 07 58 10.1 449.4 -5.5 -46.7 0 15 12 50 51 12 53 30 1228+126 07 08 38 15.1 447.3 -5.4 -47.6 15 15 12 53 30 13 02 50 --- 07 18 00 16.8 448.9 -5.2 -47.6 560 33 12 53 31 13 03 50 1226+023 07 19 00 10.2 457.1 -5.2 -45.8 30 33 13 03 50 13 07 50 --- 07 23 01 10.9 457.8 -5.1 -45.7 240 41 13 03 51 13 08 20 1236+077 07 23 31 12.9 452.1 -5.3 -46.7 4 41 13 08 20 13 09 50 --- 07 25 01 13.2 452.3 -5.3 -46.7 90 44 13 08 21 13 10 30 1228+126 07 25 41 18.2 450.2 -5.1 -47.6 15 44 13 10 30 13 20 00 --- 07 35 13 19.9 451.9 -4.9 -47.6 570 62 13 10 31 13 20 30 1228+126 07 35 43 20.0 452.0 -4.9 -47.6 24 62 13 20 30 13 29 50 --- 07 45 04 21.7 453.6 -4.8 -47.5 560 80 13 20 31 13 37 20 1236+077 07 52 36 18.1 457.2 -4.8 -46.2 425 80 13 37 20 13 38 50 --- 07 54 06 18.4 457.5 -4.8 -46.2 90 83 13 37 21 13 39 30 1228+126 07 54 46 23.4 455.4 -4.6 -47.4 15 83 13 39 30 13 48 50 --- 08 04 07 25.1 457.1 -4.5 -47.2 560 101 13 39 31 13 49 20 1228+126 08 04 38 25.2 457.2 -4.5 -47.1 24 101 13 49 20 13 53 40 --- 08 08 58 26.0 458.0 -4.4 -47.0 260 109 13 49 21 13 54 10 1156+295 08 09 28 42.3 447.7 -3.8 -55.7 -18 109 13 54 10 13 55 50 --- 08 11 09 42.6 448.0 -3.8 -55.7 82 112 13 54 11 13 56 20 1156+295 08 11 39 42.7 448.1 -3.8 -55.7 24 112 13 56 20 14 00 40 --- 08 15 59 43.5 448.8 -3.7 -55.7 260 121 13 56 21 14 01 10 1236+077 08 16 30 22.4 461.6 -4.4 -45.5 -27 121 14 01 10 14 03 10 --- 08 18 30 22.7 462.0 -4.4 -45.4 93 124 14 01 11 Schedule for ZELENCHK (Code Zc ) Page 3 Fine-scale imaging of M87 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 ---------------------------------------------------------------------------------------- --- Mon 14 May 2018 Day 134 --- 14 04 00 1228+126 08 19 20 27.8 459.9 -4.2 -46.7 25 124 14 04 00 14 13 10 --- 08 28 31 29.4 461.7 -4.1 -46.4 550 142 14 04 01 14 14 10 1226+023 08 29 32 22.5 470.3 -4.0 -42.7 29 142 14 14 10 14 18 10 --- 08 33 32 23.2 471.1 -3.9 -42.4 240 150 14 14 11 14 18 40 1236+077 08 34 02 25.5 465.0 -4.1 -44.7 3 150 14 18 40 14 20 10 --- 08 35 33 25.7 465.3 -4.1 -44.6 90 153 14 18 41 14 21 00 1228+126 08 36 23 30.8 463.2 -3.9 -46.0 25 153 14 21 00 14 27 20 --- 08 42 44 31.9 464.5 -3.8 -45.7 380 165 14 21 01 14 27 50 1236+077 08 43 14 27.1 466.8 -4.0 -44.2 5 165 14 27 50 14 29 10 --- 08 44 34 27.3 467.1 -3.9 -44.1 80 167 14 27 51 ---------- K-band VLBI scans. Space segment 02: 1228+126 ---------- 14 30 00 1228+126 08 45 24 32.4 465.0 -3.8 -45.5 25 167 14 30 00 14 50 00 --- 09 05 28 35.9 469.2 -3.4 -44.2 1200 206 14 30 01 14 50 30 1228+126 09 05 58 35.9 469.3 -3.4 -44.2 24 206 14 50 30 14 51 30 --- 09 06 58 36.1 469.5 -3.4 -44.1 60 208 14 50 31 14 52 10 1228+126 09 07 38 36.2 469.7 -3.4 -44.1 34 208 14 52 10 15 10 00 --- 09 25 31 39.2 473.7 -3.1 -42.6 1070 242 14 52 11 ---------- K-band VLBI scans. Ground segment 03: ---------- 15 10 20 1236+077 09 25 51 34.2 475.9 -3.2 -40.9 -5 242 15 10 20 15 11 50 --- 09 27 21 34.5 476.2 -3.2 -40.8 85 245 15 10 21 15 12 40 1228+126 09 28 11 39.7 474.3 -3.1 -42.3 25 245 15 12 40 15 22 10 --- 09 37 43 41.2 476.6 -2.9 -41.4 570 263 15 12 41 15 23 10 1226+023 09 38 43 33.5 485.4 -2.9 -36.1 29 263 15 23 10 15 28 10 --- 09 43 44 34.3 486.6 -2.8 -35.4 300 273 15 23 11 15 28 40 1236+077 09 44 14 37.2 480.2 -2.9 -39.0 2 273 15 28 40 15 30 10 --- 09 45 44 37.4 480.5 -2.9 -38.8 90 276 15 28 41 15 31 00 1228+126 09 46 34 42.6 478.8 -2.8 -40.4 25 276 15 31 00 15 40 30 --- 09 56 06 44.1 481.2 -2.6 -39.2 570 294 15 31 01 15 42 10 1253-055 09 57 46 26.0 488.7 -3.0 -34.5 48 294 15 42 10 15 46 10 --- 10 01 47 26.5 489.6 -2.9 -34.0 240 302 15 42 11 Schedule for ZELENCHK (Code Zc ) Page 4 Fine-scale imaging of M87 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 ---------------------------------------------------------------------------------------- --- Mon 14 May 2018 Day 134 --- 15 47 50 1228+126 10 03 27 45.2 483.2 -2.5 -38.2 48 302 15 47 50 15 56 50 --- 10 12 29 46.6 485.7 -2.3 -36.9 540 319 15 47 51 15 57 30 1228+126 10 13 09 46.7 485.9 -2.3 -36.7 34 319 15 57 30 16 06 50 --- 10 22 30 48.0 488.7 -2.2 -35.2 560 337 15 57 31 16 08 30 1156+295 10 24 10 65.9 479.3 -1.6 -46.1 50 337 16 08 30 16 12 30 --- 10 28 11 66.5 480.9 -1.5 -45.2 240 345 16 08 31 16 14 00 1228+126 10 29 41 49.0 490.8 -2.0 -34.0 40 345 16 14 00 16 22 30 --- 10 38 13 50.2 493.5 -1.9 -32.4 510 361 16 14 01 16 23 10 1228+126 10 38 53 50.3 493.7 -1.9 -32.3 34 361 16 23 10 16 32 30 --- 10 48 14 51.4 496.8 -1.7 -30.4 560 379 16 23 11 16 33 30 1226+023 10 49 15 42.6 504.7 -1.7 -24.7 27 379 16 33 30 16 37 30 --- 10 53 15 43.0 506.0 -1.6 -23.9 240 387 16 33 31 16 38 30 1228+126 10 54 15 52.2 498.9 -1.6 -29.1 27 387 16 38 30 16 47 30 --- 11 03 17 53.2 502.1 -1.5 -27.0 540 404 16 38 31 16 48 10 1228+126 11 03 57 53.3 502.4 -1.5 -26.8 34 404 16 48 10 16 57 30 --- 11 13 18 54.3 505.8 -1.3 -24.5 560 422 16 48 11 16 59 10 1253-055 11 14 59 35.2 508.3 -1.7 -22.4 47 422 16 59 10 17 03 10 --- 11 18 59 35.6 509.5 -1.6 -21.6 240 429 16 59 11 17 04 50 1228+126 11 20 40 55.0 508.7 -1.2 -22.6 46 429 17 04 50 17 14 10 --- 11 30 01 55.8 512.4 -1.0 -20.0 560 447 17 04 51 17 14 50 1228+126 11 30 41 55.9 512.7 -1.0 -19.8 33 447 17 14 50 17 25 00 --- 11 40 53 56.7 517.0 -0.8 -16.8 610 467 17 14 51 17 25 50 1228+126 11 41 43 56.7 517.3 -0.8 -16.6 43 467 17 25 50 17 34 20 --- 11 50 15 57.3 521.0 -0.7 -13.9 510 483 17 25 51 17 36 00 1156+295 11 51 55 75.3 532.6 -0.1 -6.1 49 483 17 36 00 17 39 20 --- 11 55 15 75.3 535.5 -0.1 -3.7 200 490 17 36 01 17 41 00 1228+126 11 56 56 57.6 524.0 -0.6 -11.8 50 490 17 41 00 17 49 20 --- 12 05 17 58.0 527.7 -0.4 -9.0 500 506 17 41 01 17 50 20 1226+023 12 06 17 47.8 531.1 -0.4 -6.4 25 506 17 50 20 17 54 20 --- 12 10 18 47.9 532.6 -0.3 -5.3 240 513 17 50 21 Schedule for ZELENCHK (Code Zc ) Page 5 Fine-scale imaging of M87 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 ---------------------------------------------------------------------------------------- --- Mon 14 May 2018 Day 134 --- 17 55 20 1253-055 12 11 18 39.3 525.2 -0.8 -10.7 28 513 17 55 20 17 59 20 --- 12 15 19 39.4 526.5 -0.7 -9.8 240 521 17 55 21 18 01 00 1228+126 12 16 59 58.3 533.1 -0.2 -5.1 47 521 18 01 00 18 04 20 --- 12 20 19 58.4 534.7 -0.2 -3.9 200 528 18 01 01 ---------- K-band VLBI scans. Space segment 03: 1228+126 ---------- 18 05 00 1228+126 12 21 00 58.4 535.0 -0.2 -3.7 33 528 18 05 00 18 25 00 --- 12 41 03 58.4 544.3 0.2 3.2 1200 566 18 05 01 18 25 40 1228+126 12 41 43 58.4 544.7 0.2 3.4 33 566 18 25 40 18 45 00 --- 13 01 06 57.9 553.6 0.5 10.0 1160 603 18 25 41 ---------- K-band VLBI scans. Ground segment 04: ---------- 18 45 40 1228+126 13 01 46 57.8 553.9 0.5 10.2 33 603 18 45 40 18 55 00 --- 13 11 08 57.4 558.1 0.7 13.2 560 621 18 45 41 18 56 40 1156+295 13 12 48 69.5 590.6 1.2 39.7 43 621 18 56 40 19 00 10 --- 13 16 19 69.0 592.2 1.3 40.8 210 628 18 56 41 19 01 40 1228+126 13 17 49 57.0 561.0 0.8 15.3 33 628 19 01 40 19 09 40 --- 13 25 50 56.4 564.4 0.9 17.8 480 643 19 01 41 19 11 10 1253-055 13 27 20 39.9 549.8 0.5 7.1 42 643 19 11 10 19 14 40 --- 13 30 51 39.7 550.9 0.6 7.9 210 650 19 11 11 19 16 20 1228+126 13 32 31 55.9 567.2 1.0 19.7 53 650 19 16 20 19 24 40 --- 13 40 53 55.2 570.5 1.2 22.1 500 666 19 16 21 ---------- K-band VLBI scans. Ground segment 04: ---------- 19 25 40 1228+126 13 41 53 55.1 570.9 1.2 22.3 53 666 19 25 40 19 34 40 --- 13 50 54 54.2 574.4 1.3 24.7 540 683 19 25 41 19 35 50 1226+023 13 52 04 44.4 569.3 1.4 20.7 35 683 19 35 50 19 39 40 --- 13 55 55 44.0 570.6 1.4 21.6 230 691 19 35 51 19 40 50 1228+126 13 57 05 53.5 576.7 1.4 26.2 36 691 19 40 50 19 49 40 --- 14 05 57 52.6 579.9 1.6 28.3 530 708 19 40 51 19 51 10 1156+295 14 07 27 60.8 610.5 2.1 51.2 35 708 19 51 10 19 54 50 --- 14 11 08 60.2 611.6 2.2 51.6 220 715 19 51 11 Schedule for ZELENCHK (Code Zc ) Page 6 Fine-scale imaging of M87 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 ---------------------------------------------------------------------------------------- --- Mon 14 May 2018 Day 134 --- 19 56 20 1228+126 14 12 38 51.8 582.3 1.7 29.8 35 715 19 56 20 20 05 00 --- 14 21 19 50.7 585.2 1.8 31.6 520 731 19 56 21 20 06 40 1253-055 14 23 00 36.7 567.0 1.4 19.2 57 731 20 06 40 20 10 00 --- 14 26 20 36.4 568.0 1.5 19.9 200 738 20 06 41 20 11 40 1228+126 14 28 00 49.8 587.3 1.9 32.9 56 738 20 11 40 20 20 00 --- 14 36 22 48.7 589.9 2.1 34.4 500 754 20 11 41 20 20 40 1228+126 14 37 02 48.6 590.1 2.1 34.6 34 754 20 20 40 20 25 00 --- 14 41 23 48.0 591.5 2.2 35.3 260 762 20 20 41 ---------- K-band VLBI scans. Ground segment 04: ---------- 20 26 20 1228+126 14 42 43 47.8 591.9 2.2 35.5 74 762 20 26 20 20 35 30 --- 14 51 54 46.5 594.5 2.3 37.0 550 780 20 26 21 20 36 50 1156+295 14 53 15 52.8 621.5 2.9 54.8 28 780 20 36 50 20 40 30 --- 14 56 55 52.2 622.3 2.9 55.0 220 787 20 36 51 20 41 50 1228+126 14 58 15 45.5 596.3 2.4 37.9 29 787 20 41 50 20 50 30 --- 15 06 57 44.2 598.6 2.6 39.1 520 804 20 41 51 20 51 50 1226+023 15 08 17 35.4 591.4 2.6 34.4 48 804 20 51 50 20 55 30 --- 15 11 58 34.9 592.3 2.7 34.9 220 811 20 51 51 20 56 50 1228+126 15 13 18 43.2 600.3 2.7 39.9 48 811 20 56 50 21 05 30 --- 15 21 59 41.8 602.5 2.8 40.9 520 827 20 56 51 21 07 00 1253-055 15 23 29 30.4 583.4 2.4 29.9 46 827 21 07 00 21 10 30 --- 15 27 00 29.9 584.3 2.5 30.4 210 834 21 07 01 21 12 00 1228+126 15 28 30 40.8 604.1 2.9 41.6 45 834 21 12 00 21 20 30 --- 15 37 02 39.4 606.1 3.1 42.5 510 850 21 12 01 21 21 10 1228+126 15 37 42 39.3 606.2 3.1 42.6 34 850 21 21 10 21 30 00 --- 15 46 33 37.8 608.3 3.2 43.3 530 867 21 21 11 21 30 40 1228+126 15 47 13 37.7 608.4 3.3 43.4 34 867 21 30 40 21 39 00 --- 15 55 35 36.3 610.3 3.4 44.1 500 883 21 30 41 ---------- K-band VLBI scans. Space segment 04: 1228+126 ---------- 21 40 00 1228+126 15 56 35 36.1 610.5 3.4 44.1 54 883 21 40 00 21 56 40 --- 16 13 18 33.2 614.0 3.7 45.3 1000 915 21 40 01 Schedule for ZELENCHK (Code Zc ) Page 7 Fine-scale imaging of M87 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 ---------------------------------------------------------------------------------------- --- Mon 14 May 2018 Day 134 --- 21 57 20 1228+126 16 13 58 33.1 614.1 3.7 45.3 34 915 21 57 20 22 13 20 --- 16 30 00 30.3 617.4 4.0 46.1 960 946 21 57 21 22 14 00 1228+126 16 30 40 30.2 617.5 4.0 46.2 34 946 22 14 00 22 30 00 --- 16 46 43 27.3 620.6 4.2 46.8 960 977 22 14 01 22 31 20 1253-055 16 48 03 18.2 602.3 3.8 40.0 37 977 22 31 20 22 33 20 --- 16 50 04 17.9 602.7 3.9 40.2 120 981 22 31 21 22 35 00 1156+295 16 51 44 31.6 641.7 4.9 54.0 36 981 22 35 00 22 37 00 --- 16 53 44 31.2 642.0 4.9 53.9 120 985 22 35 01 22 38 40 1228+126 16 55 25 25.8 622.2 4.4 47.1 55 985 22 38 40 22 42 40 --- 16 59 25 25.1 622.9 4.5 47.2 240 992 22 38 41 22 43 30 1228+126 17 00 15 24.9 623.1 4.5 47.2 44 992 22 43 30 22 52 00 --- 17 08 47 23.4 624.6 4.6 47.4 510 1009 22 43 31 22 52 40 1228+126 17 09 27 23.3 624.8 4.6 47.4 34 1009 22 52 40 22 56 40 --- 17 13 27 22.6 625.5 4.7 47.4 240 1016 22 52 41 22 57 30 1228+126 17 14 18 22.4 625.6 4.7 47.5 44 1016 22 57 30 23 10 00 --- 17 26 50 20.1 627.8 4.9 47.6 750 1040 22 57 31 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: ra1cm2.set Matching groups in ./gs042_freq.dat: kvzr_k Added by Des Small, 24 February 2012 Setup group: 26 Station: ZELENCHK Total bit rate: 256 Format: MARK5B Bits per sample: 2 Sample rate: 32.000 Number of channels: 4 DBE type: Speedup factor: 1.00 Disk used to record data. 1st LO= 21920.00 21920.00 21920.00 21920.00 Net SB= U U L L IF SB = U U U U Pol. = RCP LCP RCP LCP BBC = 1 9 1 9 BBC SB= U U L L IF = A B A B The following frequency sets based on these setups were used. Frequency Set: 2 Setup file default. Used with PCAL = 1MHz LO sum= 22236.00 22236.00 22236.00 22236.00 BBC fr= 316.00 316.00 316.00 316.00 Bandwd= 16.00 16.00 16.00 16.00 Matching frequency sets: 2 10 12 Track assignments are: track1= 2, 4, 6, 8 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * FAKERA 11 57 21.769299 * 12 00 00.000000 12 00 58.985352 0.00 85 16 41.77889 * 85 00 00.00000 84 54 13.48772 0.00 From catalog imbedded in main SCHED input file. fake circumpolar target for a TS to look at J1239+0730 12 36 52.308755 * 12 39 24.588327 12 40 20.487542 0.10 * 1236+077 07 46 45.39997 * 07 30 17.18902 07 24 18.52672 0.11 J1239+07 From catalog imbedded in main SCHED input file. rfc_2012b Petrov, 2012, unpublished 1855 observations * 1226+023 12 26 33.245835 * 12 29 06.699731 12 30 03.025117 0.00 J1229+0203 02 19 43.30547 * 02 03 08.59797 01 57 05.87367 0.00 3C273B ./gs042_sources.radioastron 3C273 AGN, rfc_2013d Petrov, 2013, unpublished 32011 observations, RA-AO4-07, RA-AO3-0 * 1253-055 12 53 35.831289 * 12 56 11.166557 12 57 08.371431 0.00 J1256-0547 -05 31 07.99603 *-05 47 21.52489 -05 53 17.34581 0.00 3C279 ./gs042_sources.radioastron AGN, rfc_2013d Petrov, 2013, unpublished 7924 observations, RA-AO4-07, RA-AO3-04 * 1228+126 12 28 17.569280 * 12 30 49.423382 12 31 45.092957 0.00 J1230+1223 12 40 01.74883 * 12 23 28.04365 12 17 28.41095 0.00 3C274 ./gs042_sources.radioastron M87 AGN, rfc_2013d Petrov, 2013, unpublished 55201 observations, RA-AO3-04, RA-AO3-0 VIR-A * 1156+295 11 56 57.786212 * 11 59 31.833913 12 00 28.033628 0.00 J1159+2914 29 31 25.73868 * 29 14 43.82678 29 08 45.29167 0.00 ./gs042_sources.radioastron AGN, MASIV, rfc_2013d Petrov, 2013, unpublished 70591 observations, RA-AO3-04, R 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 FAKERA ra1cm2.set 9 2.783 0.000 1236+077 ra1cm2.set 1 2 3 6 7 8 11 13 14 15 16 + 0.347 16.742 1226+023 ra1cm2.set 1 2 3 6 7 8 11 13 14 15 16 + 0.667 51.411 1253-055 ra1cm2.set 1 2 3 6 7 8 11 13 14 15 16 + 0.597 42.278 1228+126 ra1cm2.set 1 2 3 6 7 8 11 13 14 15 16 + 8.722 862.110 ra7mm2.set 30 31 32 0.350 15.750 1156+295 ra1cm2.set 1 2 3 6 7 8 11 13 14 15 16 + 0.617 51.640 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) FAKERA 74.5 1236+077 131.5 1226+023 132.1 1253-055 141.6 1228+126 127.0 1156+295 111.1 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