COVER INFORMATION Station: URUMQI (Code Ur ) Experiment: Probing the innermost regions of AGN jets and their magnetic fields Exp. Code: ga030d Schedule Version: 1.00 Processed by SCHED version: 11.20 Release of Jan. 22, 2014 - update 1 PI: Andrei Lobanov Address: MPIfR Bonn Auf dem Huegel 69 53121 Bonn, Germany Phone: +49 (228) 525 191 EMAIL: alobanov@mpifr-bonn.mpg.de Fax: +49 228 525 229 Phone during observation: +7 903 661 4865 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 Please, send Mk5 disk packs to MPIfR-Bonn Schedule for URUMQI (Code Ur ) Page 2 Probing the innermost regions of AGN jets and their magnetic fields 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 10 Mar 2014 Day 69 --- ---------- Space segment 02 ---------- Next scan frequencies: 22236.00 22236.00 22236.00 22236.00 Next BBC frequencies: 236.00 236.00 236.00 236.00 Next scan bandwidths: 16.00 16.00 16.00 16.00 15 50 00 1253-055 08 51 41 16.0 114.8 -4.1 -41.5 0 0 15 50 00 15 59 30 --- 09 01 13 17.6 116.6 -3.9 -40.7 570 18 15 50 04 16 00 00 1253-055 09 01 43 17.7 116.7 -3.9 -40.7 28 18 16 00 00 16 09 30 --- 09 11 14 19.2 118.6 -3.8 -39.8 570 37 16 00 04 16 10 00 1253-055 09 11 44 19.3 118.7 -3.8 -39.8 28 37 16 10 00 16 19 30 --- 09 21 16 20.8 120.7 -3.6 -38.9 570 55 16 10 04 ---------- Ground segment 03: Scans on target and D-term calibrator ---------- 16 20 00 1253-055 09 21 46 20.9 120.8 -3.6 -38.8 28 55 16 20 00 16 22 00 --- 09 23 46 21.2 121.2 -3.6 -38.6 120 59 16 20 04 16 22 40 1253-055 09 24 26 21.3 121.4 -3.5 -38.5 38 59 16 22 40 16 27 40 --- 09 29 27 22.0 122.4 -3.5 -38.0 300 68 16 22 44 16 28 20 1243-072 09 30 07 22.3 125.8 -3.3 -36.4 33 68 16 28 20 16 33 20 --- 09 35 08 23.0 126.9 -3.2 -35.8 300 78 16 28 24 16 34 00 1253-055 09 35 48 23.0 123.8 -3.4 -37.3 33 78 16 34 00 16 39 00 --- 09 40 49 23.8 124.8 -3.3 -36.8 300 87 16 34 04 16 39 40 1243-072 09 41 29 23.9 128.3 -3.1 -35.1 33 87 16 39 40 16 44 40 --- 09 46 30 24.6 129.4 -3.0 -34.4 300 97 16 39 44 16 45 20 1253-055 09 47 10 24.7 126.2 -3.2 -36.0 33 97 16 45 20 16 50 20 --- 09 52 11 25.4 127.4 -3.1 -35.4 300 107 16 45 24 16 51 00 1243-072 09 52 51 25.5 130.9 -2.9 -33.6 33 107 16 51 00 16 56 00 --- 09 57 52 26.2 132.0 -2.8 -32.9 300 116 16 51 04 16 56 40 1253-055 09 58 32 26.3 128.8 -3.0 -34.7 33 116 16 56 40 17 01 40 --- 10 03 33 27.0 129.9 -2.9 -34.0 300 126 16 56 44 17 02 20 1243-072 10 04 13 27.1 133.5 -2.7 -32.1 33 126 17 02 20 17 07 20 --- 10 09 14 27.7 134.7 -2.6 -31.4 300 136 17 02 24 17 08 00 1253-055 10 09 54 27.9 131.4 -2.8 -33.2 33 136 17 08 00 17 13 00 --- 10 14 55 28.6 132.6 -2.7 -32.5 300 145 17 08 04 Schedule for URUMQI (Code Ur ) Page 3 Probing the innermost regions of AGN jets and their magnetic fields 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 10 Mar 2014 Day 69 --- 17 13 40 1243-072 10 15 35 28.5 136.2 -2.5 -30.4 33 145 17 13 40 17 18 40 --- 10 20 36 29.1 137.5 -2.4 -29.7 300 155 17 13 44 17 19 20 1253-055 10 21 16 29.4 134.1 -2.6 -31.6 33 155 17 19 20 17 26 20 --- 10 28 17 30.3 135.9 -2.5 -30.5 420 168 17 19 24 17 27 00 1253-055 10 28 57 30.4 136.0 -2.5 -30.4 38 168 17 27 00 17 29 00 --- 10 30 57 30.7 136.5 -2.4 -30.1 120 172 17 27 04 ---------- Space segment 03 ---------- 17 30 00 1253-055 10 31 57 30.8 136.8 -2.4 -30.0 58 172 17 30 00 17 39 30 --- 10 41 29 31.9 139.2 -2.3 -28.5 570 190 17 30 04 17 40 00 1253-055 10 41 59 32.0 139.3 -2.2 -28.4 28 190 17 40 00 17 49 30 --- 10 51 31 33.1 141.8 -2.1 -26.8 570 209 17 40 04 17 50 00 1253-055 10 52 01 33.2 142.0 -2.1 -26.7 28 209 17 50 00 17 59 30 --- 11 01 32 34.2 144.5 -1.9 -25.0 570 227 17 50 04 ---------- Ground segment 04: Scans on target and D-term calibrator ---------- 18 00 00 1253-055 11 02 02 34.2 144.7 -1.9 -25.0 28 227 18 00 00 18 02 00 --- 11 04 03 34.5 145.2 -1.9 -24.6 120 231 18 00 04 18 02 40 1253-055 11 04 43 34.5 145.4 -1.9 -24.5 38 231 18 02 40 18 07 40 --- 11 09 44 35.0 146.8 -1.8 -23.6 300 240 18 02 44 18 08 20 1243-072 11 10 24 34.5 150.6 -1.6 -21.1 32 240 18 08 20 18 13 20 --- 11 15 25 34.9 152.0 -1.5 -20.1 300 250 18 08 24 18 14 00 1253-055 11 16 05 35.6 148.6 -1.7 -22.4 32 250 18 14 00 18 19 00 --- 11 21 05 36.1 150.0 -1.6 -21.4 300 260 18 14 04 18 19 40 1243-072 11 21 46 35.4 153.8 -1.4 -18.8 32 260 18 19 40 18 24 40 --- 11 26 46 35.8 155.3 -1.3 -17.8 300 269 18 19 44 18 25 20 1253-055 11 27 27 36.7 151.8 -1.5 -20.1 32 269 18 25 20 18 30 20 --- 11 32 27 37.1 153.3 -1.4 -19.1 300 279 18 25 24 18 31 00 1243-072 11 33 07 36.3 157.1 -1.2 -16.5 32 279 18 31 00 18 36 00 --- 11 38 08 36.6 158.6 -1.1 -15.5 300 288 18 31 04 18 36 40 1253-055 11 38 48 37.6 155.2 -1.3 -17.8 32 288 18 36 40 18 41 40 --- 11 43 49 38.0 156.7 -1.2 -16.8 300 298 18 36 44 Schedule for URUMQI (Code Ur ) Page 4 Probing the innermost regions of AGN jets and their magnetic fields 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 10 Mar 2014 Day 69 --- 18 42 20 1243-072 11 44 29 37.0 160.5 -1.0 -14.1 32 298 18 42 20 18 47 20 --- 11 49 30 37.3 162.0 -1.0 -13.1 300 308 18 42 24 18 48 00 1253-055 11 50 10 38.4 158.6 -1.1 -15.4 32 308 18 48 00 18 53 00 --- 11 55 11 38.7 160.2 -1.0 -14.3 300 317 18 48 04 18 53 40 1243-072 11 55 51 37.6 164.0 -0.8 -11.7 32 317 18 53 40 18 58 40 --- 12 00 52 37.9 165.5 -0.8 -10.6 300 327 18 53 44 18 59 20 1253-055 12 01 32 39.1 162.1 -0.9 -12.9 32 327 18 59 20 19 06 20 --- 12 08 33 39.5 164.3 -0.8 -11.4 420 340 18 59 24 19 07 00 1253-055 12 09 13 39.5 164.5 -0.8 -11.2 38 340 19 07 00 19 09 00 --- 12 11 14 39.6 165.2 -0.8 -10.8 120 344 19 07 04 ---------- Space segment 04 ---------- 19 10 00 1253-055 12 12 14 39.6 165.5 -0.7 -10.5 58 344 19 10 00 19 19 30 --- 12 21 45 40.0 168.5 -0.6 -8.3 570 362 19 10 04 19 20 00 1253-055 12 22 16 40.0 168.7 -0.6 -8.2 28 362 19 20 00 19 29 30 --- 12 31 47 40.3 171.8 -0.4 -6.0 570 381 19 20 04 19 30 00 1253-055 12 32 17 40.3 171.9 -0.4 -5.9 28 381 19 30 00 19 39 30 --- 12 41 49 40.5 175.0 -0.3 -3.6 570 399 19 30 04 ---------- Ground segment 05: Scans on target and D-term calibrator ---------- 19 40 00 1253-055 12 42 19 40.5 175.2 -0.2 -3.5 28 399 19 40 00 19 42 00 --- 12 44 19 40.6 175.9 -0.2 -3.0 120 403 19 40 04 19 42 40 1253-055 12 44 59 40.6 176.1 -0.2 -2.9 38 403 19 42 40 19 47 40 --- 12 50 00 40.6 177.7 -0.1 -1.7 300 412 19 42 44 19 48 20 1243-072 12 50 40 38.9 181.2 0.1 0.9 33 412 19 48 20 19 53 20 --- 12 55 41 38.9 182.8 0.1 2.1 300 422 19 48 24 19 54 00 1253-055 12 56 21 40.7 179.8 -0.0 -0.1 33 422 19 54 00 19 59 00 --- 13 01 22 40.6 181.4 0.1 1.1 300 432 19 54 04 19 59 40 1243-072 13 02 02 38.8 184.8 0.3 3.5 33 432 19 59 40 20 04 40 --- 13 07 03 38.7 186.4 0.3 4.7 300 441 19 59 44 20 05 20 1253-055 13 07 43 40.6 183.5 0.2 2.6 33 441 20 05 20 20 10 20 --- 13 12 44 40.5 185.2 0.3 3.8 300 451 20 05 24 Schedule for URUMQI (Code Ur ) Page 5 Probing the innermost regions of AGN jets and their magnetic fields 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 10 Mar 2014 Day 69 --- 20 11 00 1243-072 13 13 24 38.6 188.4 0.4 6.2 33 451 20 11 00 20 16 00 --- 13 18 25 38.4 190.0 0.5 7.3 300 461 20 11 04 20 16 40 1253-055 13 19 05 40.4 187.2 0.4 5.3 33 461 20 16 40 20 21 40 --- 13 24 06 40.3 188.9 0.5 6.5 300 470 20 16 44 20 22 20 1243-072 13 24 46 38.2 192.0 0.6 8.8 33 470 20 22 20 20 27 20 --- 13 29 47 38.0 193.6 0.7 9.9 300 480 20 22 24 20 28 00 1253-055 13 30 27 40.1 190.9 0.6 7.9 33 480 20 28 00 20 33 00 --- 13 35 27 39.9 192.5 0.6 9.1 300 489 20 28 04 20 33 40 1243-072 13 36 08 37.7 195.5 0.8 11.3 33 489 20 33 40 20 38 40 --- 13 41 08 37.5 197.0 0.9 12.4 300 499 20 33 44 20 39 20 1253-055 13 41 49 39.6 194.5 0.7 10.6 33 499 20 39 20 20 46 20 --- 13 48 50 39.3 196.8 0.9 12.1 420 512 20 39 24 20 47 00 1253-055 13 49 30 39.2 197.0 0.9 12.3 38 512 20 47 00 20 49 00 --- 13 51 30 39.1 197.6 0.9 12.7 120 516 20 47 04 ---------- Space segment 05 ---------- 20 50 00 1253-055 13 52 30 39.1 197.9 0.9 13.0 58 516 20 50 00 20 59 30 --- 14 02 02 38.5 200.9 1.1 15.1 570 535 20 50 04 21 00 00 1253-055 14 02 32 38.5 201.0 1.1 15.2 28 535 21 00 00 21 09 30 --- 14 12 03 37.8 203.9 1.3 17.2 570 553 21 00 04 21 10 00 1253-055 14 12 34 37.8 204.1 1.3 17.3 28 553 21 10 00 21 19 30 --- 14 22 05 37.0 206.9 1.4 19.3 570 571 21 10 04 ---------- Ground segment 06: Scans on target and D-term calibrator ---------- 21 20 00 1253-055 14 22 35 37.0 207.0 1.4 19.4 28 571 21 20 00 21 25 00 --- 14 27 36 36.6 208.5 1.5 20.4 300 581 21 20 04 21 25 40 1243-072 14 28 16 34.0 210.8 1.7 22.0 32 581 21 25 40 21 30 40 --- 14 33 17 33.5 212.2 1.8 23.0 300 590 21 25 44 21 31 20 1253-055 14 33 57 36.0 210.3 1.6 21.6 32 590 21 31 20 21 36 20 --- 14 38 58 35.5 211.8 1.7 22.6 300 600 21 31 24 21 37 00 1243-072 14 39 38 32.9 213.9 1.9 24.1 32 600 21 37 00 21 42 00 --- 14 44 39 32.4 215.2 2.0 25.0 300 610 21 37 04 Schedule for URUMQI (Code Ur ) Page 6 Probing the innermost regions of AGN jets and their magnetic fields 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 10 Mar 2014 Day 69 --- 21 42 40 1253-055 14 45 19 34.9 213.5 1.8 23.8 32 610 21 42 40 21 47 40 --- 14 50 20 34.4 214.9 1.9 24.7 300 619 21 42 44 21 48 20 1243-072 14 51 00 31.7 216.9 2.1 26.1 32 619 21 48 20 21 53 20 --- 14 56 01 31.1 218.2 2.2 26.9 300 629 21 48 24 21 54 00 1253-055 14 56 41 33.7 216.6 2.0 25.8 32 629 21 54 00 21 59 00 --- 15 01 42 33.2 218.0 2.1 26.7 300 638 21 54 04 21 59 40 1243-072 15 02 22 30.4 219.9 2.3 28.0 32 638 21 59 40 22 04 40 --- 15 07 23 29.8 221.1 2.3 28.8 300 648 21 59 44 22 05 20 1253-055 15 08 03 32.5 219.7 2.2 27.7 32 648 22 05 20 22 10 20 --- 15 13 03 31.9 221.0 2.3 28.6 300 658 22 05 24 22 11 00 1243-072 15 13 44 29.1 222.7 2.4 29.8 32 658 22 11 00 22 16 00 --- 15 18 44 28.4 223.9 2.5 30.5 300 667 22 11 04 22 16 40 1253-055 15 19 25 31.1 222.6 2.4 29.6 32 667 22 16 40 22 21 40 --- 15 24 25 30.5 223.8 2.5 30.3 300 677 22 16 44 22 22 20 1243-072 15 25 05 27.6 225.4 2.6 31.4 31 677 22 22 20 22 27 20 --- 15 30 06 27.0 226.6 2.7 32.2 300 687 22 22 24 22 28 00 1253-055 15 30 46 29.7 225.4 2.6 31.3 31 687 22 28 00 22 33 00 --- 15 35 47 29.0 226.6 2.6 32.0 300 696 22 28 04 22 33 40 1243-072 15 36 27 26.1 228.1 2.8 33.0 31 696 22 33 40 22 38 40 --- 15 41 28 25.4 229.3 2.9 33.7 300 706 22 33 44 22 39 20 1253-055 15 42 08 28.2 228.1 2.8 32.9 31 706 22 39 20 22 44 20 --- 15 47 09 27.5 229.3 2.8 33.6 300 715 22 39 24 22 45 00 1243-072 15 47 49 24.6 230.7 3.0 34.5 31 715 22 45 00 22 50 00 --- 15 52 50 23.8 231.8 3.1 35.1 300 725 22 45 04 22 50 40 1253-055 15 53 30 26.6 230.8 2.9 34.4 31 725 22 50 40 22 54 20 --- 15 57 11 26.1 231.6 3.0 34.9 220 732 22 50 44 ---------- Space segment 06 ---------- 22 55 00 1253-055 15 57 51 26.0 231.8 3.0 35.0 38 732 22 55 00 23 04 30 --- 16 07 22 24.6 233.9 3.2 36.1 570 750 22 55 04 Schedule for URUMQI (Code Ur ) Page 7 Probing the innermost regions of AGN jets and their magnetic fields 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 10 Mar 2014 Day 69 --- 23 05 00 1253-055 16 07 52 24.5 234.0 3.2 36.2 28 750 23 05 00 23 14 30 --- 16 17 24 23.1 236.1 3.3 37.3 570 769 23 05 04 23 15 00 1253-055 16 17 54 23.0 236.2 3.3 37.3 28 769 23 15 00 23 24 30 --- 16 27 26 21.6 238.2 3.5 38.3 570 787 23 15 04 23 25 00 1253-055 16 27 56 21.5 238.3 3.5 38.4 28 787 23 25 00 23 34 30 --- 16 37 27 20.0 240.3 3.7 39.3 570 805 23 25 04 23 35 00 1253-055 16 37 57 19.9 240.4 3.7 39.4 28 805 23 35 00 23 44 30 --- 16 47 29 18.4 242.3 3.8 40.2 570 823 23 35 04 23 45 00 1253-055 16 47 59 18.3 242.4 3.9 40.3 28 823 23 45 00 23 54 30 --- 16 57 31 16.8 244.3 4.0 41.1 570 842 23 45 04 --- Start: Mon 10 Mar 2014 Day 69 -- Stop: Tue 11 Mar 2014 Day 70 --- 23 55 00 1253-055 16 58 01 16.7 244.4 4.0 41.1 28 842 23 55 00 00 04 30 --- 17 07 32 15.2 246.3 4.2 41.9 570 860 23 55 04 00 05 00 1253-055 17 08 02 15.1 246.4 4.2 41.9 28 860 00 05 00 00 14 30 --- 17 17 34 13.5 248.2 4.3 42.6 570 878 00 05 04 00 15 00 1253-055 17 18 04 13.4 248.3 4.4 42.7 28 878 00 15 00 00 24 30 --- 17 27 36 11.8 250.0 4.5 43.3 570 896 00 15 04 00 25 00 1253-055 17 28 06 11.7 250.1 4.5 43.3 28 896 00 25 00 00 34 30 --- 17 37 37 10.1 251.9 4.7 43.9 570 915 00 25 04 00 35 00 1253-055 17 38 07 10.0 252.0 4.7 43.9 28 915 00 35 00 00 44 30 --- 17 47 39 8.3 253.7 4.8 44.4 570 933 00 35 04 00 45 00 1253-055 17 48 09 8.2 253.8 4.9 44.5 28 933 00 45 00 00 54 30 --- 17 57 40 6.6 255.5 5.0 44.9 570 951 00 45 04 00 55 00 1253-055 17 58 11 6.5 255.6 5.0 44.9 28 951 00 55 00 01 04 30 --- 18 07 42 4.8 257.2 5.2 D 45.4 0 970 00 55 04 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 ./ga030d_freq_sess313rdbe.dat: ur1cmd Dummy dual-pol entry, only LCP available (CR 2Jul02). Setup group: 2 Station: URUMQI 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= 22000.00 22000.00 22000.00 22000.00 Net SB= L L U U IF SB = U U U U Pol. = RCP LCP RCP LCP BBC = 2 1 2 1 BBC SB= L L U U IF = 2N 1N 2N 1N The following frequency sets based on these setups were used. Frequency Set: 12 Setup file default. Used with PCAL = 1MHz LO sum= 22236.00 22236.00 22236.00 22236.00 BBC fr= 236.00 236.00 236.00 236.00 Bandwd= 16.00 16.00 16.00 16.00 Matching frequency sets: 12 Track assignments are: track1= 8, 6, 4, 2 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 52.227615 0.00 85 16 41.77889 * 85 00 00.00000 84 55 07.17888 0.00 From catalog imbedded in main SCHED input file. fake circumpolar target for a TS to look at * 1243-072 12 43 28.787939 * 12 46 04.232101 12 46 50.196736 0.00 J1246-0730 -07 14 23.49353 *-07 30 46.57479 -07 35 34.31825 0.00 ./ga030d_sources.radioastron AGN, rfc_2012b Petrov, 2012, unpublished 1300 observations * 1253-055 12 53 35.831289 * 12 56 11.166557 12 56 57.054431 0.00 J1256-0547 -05 31 07.99603 *-05 47 21.52489 -05 52 06.28974 0.00 3C279 ./ga030d_sources.radioastron AGN, rfc_2013d Petrov, 2013, unpublished 7924 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 FAKERA ra1cm2.set 11 4.433 0.000 1243-072 ra1cm2.set 1 2 5 6 7 8 9 10 12 13 14 1 + 2.733 236.700 1253-055 ra1cm2.set 1 2 5 6 7 8 9 10 12 13 14 1 + 7.917 669.650 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 98.9 1243-072 156.3 1253-055 154.8 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