COVER INFORMATION Station: JODRELL1 (Code Jb ) Experiment: ES112 Exp. Code: ES112 Schedule Version: 2.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: Shu, Xinwen Address: Anhui Normal University 189 South Jiuhua Road Wuhu, Anhui China Phone: 8617755362162 EMAIL: xwshu@mail.ahnu.edu.cn Fax: Phone during observation: 8617755362162 Observing mode: vlbi Notes: Off Pcal, 2048 Mbps, 16x32 MHz, RCP & LCP, 2 bit sampling Day 071 0000(12/03)-0600(12/03) C Band/5 GHz/Phase-referecing Schedule for JODRELL1 (Code Jb ) Page 2 ES112 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 12 Mar 2025 Day 71 --- Next scan frequencies: 4830.49 4830.49 4830.49 4830.49 4894.49 4894.49 4894.49 4894.49 4958.49 4958.49 4958.49 4958.49 5022.49 5022.49 5022.49 5022.49 Next BBC frequencies: 833.51 833.51 833.51 833.51 769.51 769.51 769.51 769.51 705.51 705.51 705.51 705.51 641.51 641.51 641.51 641.51 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 00 00 00 3C286 11 10 21 55.6 117.4 -2.4 -38.0 0 0 00 00 00 00 05 00 --- 11 15 22 56.3 119.0 -2.3 -37.4 300 77 00 00 01 00 07 20 J1547+2052 11 17 42 29.7 94.7 -4.5 -39.6 -70 77 00 07 20 00 09 50 =1545+210 11 20 12 30.1 95.2 -4.5 -39.6 80 116 00 07 21 00 09 50 J1548 11 20 12 30.9 94.0 -4.5 -40.1 -19 116 No stop 00 13 20 --- 11 23 43 31.4 94.8 -4.4 -40.1 191 170 00 09 51 00 13 20 J1547+2052 11 23 43 30.6 95.9 -4.4 -39.6 -20 170 No stop 00 14 50 =1545+210 11 25 13 30.8 96.2 -4.4 -39.5 70 193 00 13 21 00 14 50 J1545+2006 11 25 13 30.6 97.3 -4.4 -39.2 -19 193 No stop 00 18 20 =1543+202 11 28 44 31.1 98.0 -4.3 -39.1 191 247 00 14 51 00 18 50 J1547+2052 11 29 14 31.4 97.1 -4.3 -39.4 12 247 00 18 50 00 20 20 =1545+210 11 30 44 31.7 97.4 -4.3 -39.4 90 271 00 18 51 00 20 20 J1548 11 30 44 32.5 96.2 -4.3 -39.9 -19 271 No stop 00 24 50 --- 11 35 15 33.2 97.2 -4.2 -39.8 251 340 00 20 21 00 42 30 J1548 11 52 58 35.8 101.0 -3.9 -39.3 1050 340 00 42 30 00 46 00 --- 11 56 28 36.3 101.8 -3.9 -39.2 210 394 00 42 31 00 46 00 J1547+2052 11 56 28 35.5 103.0 -3.9 -38.6 -20 394 No stop 00 47 30 =1545+210 11 57 59 35.7 103.4 -3.8 -38.5 70 417 00 46 01 00 47 30 J1545+2006 11 57 59 35.4 104.4 -3.8 -38.1 -19 417 No stop 00 51 00 =1543+202 12 01 29 35.9 105.2 -3.8 -37.9 191 471 00 47 31 00 51 30 J1547+2052 12 01 59 36.3 104.3 -3.8 -38.4 11 471 00 51 30 00 53 00 =1545+210 12 03 29 36.5 104.6 -3.8 -38.3 90 495 00 51 31 00 53 00 J1548 12 03 29 37.3 103.4 -3.8 -38.9 -19 495 No stop 00 57 30 --- 12 08 00 38.0 104.4 -3.7 -38.7 251 564 00 53 01 01 04 30 J1548 12 15 01 39.0 106.0 -3.6 -38.4 411 564 01 04 30 01 08 00 --- 12 18 32 39.5 106.9 -3.5 -38.2 210 618 01 04 31 Schedule for JODRELL1 (Code Jb ) Page 3 ES112 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 12 Mar 2025 Day 71 --- 01 08 00 J1547+2052 12 18 32 38.6 108.1 -3.5 -37.5 -20 618 No stop 01 09 30 =1545+210 12 20 02 38.8 108.5 -3.5 -37.4 70 642 01 08 01 01 09 30 J1545+2006 12 20 02 38.5 109.6 -3.4 -36.9 -19 642 No stop 01 13 00 =1543+202 12 23 33 39.0 110.4 -3.4 -36.7 191 696 01 09 31 01 13 30 J1547+2052 12 24 03 39.4 109.4 -3.4 -37.1 11 696 01 13 30 01 15 00 =1545+210 12 25 33 39.6 109.8 -3.4 -37.0 90 719 01 13 31 01 15 00 J1548 12 25 33 40.5 108.5 -3.4 -37.8 -20 719 No stop 01 19 30 --- 12 30 04 41.1 109.6 -3.3 -37.5 250 788 01 15 01 01 26 30 J1548 12 37 05 42.1 111.4 -3.2 -37.0 411 788 01 26 30 01 30 00 --- 12 40 35 42.6 112.2 -3.2 -36.7 210 842 01 26 31 01 30 00 J1547+2052 12 40 35 41.7 113.5 -3.1 -35.9 -20 842 No stop 01 31 30 =1545+210 12 42 06 41.9 113.9 -3.1 -35.8 70 866 01 30 01 01 31 30 J1545+2006 12 42 06 41.6 115.0 -3.1 -35.3 -20 866 No stop 01 35 00 =1543+202 12 45 36 42.1 115.9 -3.0 -35.0 190 920 01 31 31 01 35 30 J1547+2052 12 46 06 42.5 114.9 -3.0 -35.5 11 920 01 35 30 01 37 00 =1545+210 12 47 37 42.7 115.3 -3.0 -35.4 90 943 01 35 31 01 37 00 J1548 12 47 37 43.6 114.0 -3.0 -36.1 -20 943 No stop 01 41 30 --- 12 52 07 44.2 115.2 -3.0 -35.7 250 1013 01 37 01 01 48 30 J1548 12 59 09 45.1 117.1 -2.8 -35.1 411 1013 01 48 30 01 52 00 --- 13 02 39 45.6 118.0 -2.8 -34.8 210 1067 01 48 31 01 52 00 J1547+2052 13 02 39 44.7 119.3 -2.8 -33.9 -20 1067 No stop 01 53 30 =1545+210 13 04 09 44.9 119.7 -2.7 -33.8 70 1090 01 52 01 01 53 30 J1545+2006 13 04 09 44.5 120.9 -2.7 -33.1 -20 1090 No stop 01 57 00 =1543+202 13 07 40 45.0 121.9 -2.7 -32.8 190 1144 01 53 31 01 57 30 J1547+2052 13 08 10 45.4 120.8 -2.7 -33.4 11 1144 01 57 30 01 59 00 =1545+210 13 09 40 45.6 121.2 -2.7 -33.2 90 1167 01 57 31 01 59 00 J1548 13 09 40 46.5 120.0 -2.7 -34.0 -20 1167 No stop 02 03 30 --- 13 14 11 47.1 121.2 -2.6 -33.5 250 1237 01 59 01 02 10 30 J1548 13 21 12 48.0 123.2 -2.5 -32.7 410 1237 02 10 30 02 14 00 --- 13 24 43 48.4 124.3 -2.4 -32.2 210 1291 02 10 31 Schedule for JODRELL1 (Code Jb ) Page 4 ES112 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 12 Mar 2025 Day 71 --- 02 14 00 J1547+2052 13 24 43 47.5 125.6 -2.4 -31.4 -20 1291 No stop 02 15 30 =1545+210 13 26 13 47.6 126.0 -2.4 -31.2 70 1314 02 14 01 02 15 30 J1545+2006 13 26 13 47.2 127.2 -2.3 -30.5 -20 1314 No stop 02 19 00 =1543+202 13 29 44 47.7 128.3 -2.3 -30.0 190 1368 02 15 31 02 19 30 J1547+2052 13 30 14 48.1 127.2 -2.3 -30.7 11 1368 02 19 30 02 21 00 =1545+210 13 31 44 48.3 127.7 -2.3 -30.5 90 1391 02 19 31 02 21 00 J1548 13 31 44 49.3 126.4 -2.3 -31.3 -20 1391 No stop 02 25 30 --- 13 36 15 49.8 127.8 -2.2 -30.7 250 1461 02 21 01 02 32 30 J1548 13 43 16 50.6 130.0 -2.1 -29.7 410 1461 02 32 30 02 36 00 --- 13 46 46 51.0 131.1 -2.1 -29.1 210 1515 02 32 31 02 36 00 J1547+2052 13 46 46 50.0 132.4 -2.0 -28.2 -20 1515 No stop 02 37 30 =1545+210 13 48 17 50.2 132.8 -2.0 -28.0 70 1538 02 36 01 02 37 30 J1545+2006 13 48 17 49.8 134.1 -2.0 -27.2 -20 1538 No stop 02 41 00 =1543+202 13 51 47 50.1 135.2 -1.9 -26.7 190 1592 02 37 31 02 41 30 J1547+2052 13 52 17 50.6 134.1 -1.9 -27.4 11 1592 02 41 30 02 43 00 =1545+210 13 53 47 50.8 134.6 -1.9 -27.1 90 1615 02 41 31 02 43 00 J1548 13 53 47 51.8 133.4 -1.9 -28.0 -20 1615 No stop 02 47 30 --- 13 58 18 52.3 134.9 -1.9 -27.2 250 1685 02 43 01 02 54 30 J1548 14 05 19 53.0 137.3 -1.7 -26.0 410 1685 02 54 30 02 58 00 --- 14 08 50 53.4 138.5 -1.7 -25.3 210 1739 02 54 31 02 58 00 J1547+2052 14 08 50 52.3 139.7 -1.7 -24.4 -20 1739 No stop 02 59 30 =1545+210 14 10 20 52.5 140.2 -1.6 -24.2 70 1762 02 58 01 02 59 30 J1545+2006 14 10 20 52.0 141.5 -1.6 -23.4 -20 1762 No stop 03 03 00 =1543+202 14 13 51 52.3 142.7 -1.5 -22.7 190 1816 02 59 31 03 03 30 J1547+2052 14 14 21 52.8 141.7 -1.6 -23.4 11 1816 03 03 30 03 05 00 =1545+210 14 15 51 53.0 142.2 -1.5 -23.1 90 1840 03 03 31 03 05 00 J1548 14 15 51 54.1 141.0 -1.6 -24.0 -20 1840 No stop 03 09 30 --- 14 20 22 54.5 142.6 -1.5 -23.1 250 1909 03 05 01 03 16 30 J1548 14 27 23 55.1 145.2 -1.4 -21.6 410 1909 03 16 30 03 20 00 --- 14 30 54 55.4 146.6 -1.3 -20.8 210 1963 03 16 31 Schedule for JODRELL1 (Code Jb ) Page 5 ES112 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 12 Mar 2025 Day 71 --- 03 20 00 J1547+2052 14 30 54 54.3 147.7 -1.3 -20.0 -20 1963 No stop 03 21 30 =1545+210 14 32 24 54.4 148.3 -1.3 -19.7 70 1986 03 20 01 03 21 30 J1545+2006 14 32 24 53.8 149.5 -1.2 -18.9 -20 1986 No stop 03 25 00 =1543+202 14 35 54 54.1 150.8 -1.2 -18.1 190 2040 03 21 31 03 25 30 J1547+2052 14 36 24 54.7 149.8 -1.2 -18.8 11 2040 03 25 30 03 27 00 =1545+210 14 37 55 54.8 150.4 -1.2 -18.4 90 2064 03 25 31 03 27 00 J1548 14 37 55 55.9 149.3 -1.2 -19.3 -20 2064 No stop 03 31 30 --- 14 42 25 56.3 151.1 -1.1 -18.2 250 2133 03 27 01 03 38 30 J1548 14 49 27 56.8 153.9 -1.0 -16.5 409 2133 03 38 30 03 41 30 --- 14 52 27 57.0 155.1 -1.0 -15.8 180 2180 03 38 31 03 41 30 J1547+2052 14 52 27 55.8 156.1 -0.9 -15.0 -20 2180 No stop 03 43 00 =1545+210 14 53 57 55.9 156.7 -0.9 -14.7 70 2203 03 41 31 03 43 00 J1548 14 53 57 57.0 155.7 -0.9 -15.4 -21 2203 No stop 03 46 00 --- 14 56 58 57.2 157.0 -0.9 -14.6 159 2249 03 43 01 03 46 00 J1547+2052 14 56 58 56.1 157.9 -0.9 -13.9 -20 2249 No stop 03 47 30 =1545+210 14 58 28 56.1 158.5 -0.8 -13.5 70 2272 03 46 01 03 49 50 3C286 15 00 48 62.1 223.9 1.5 28.8 -141 2272 03 49 50 03 53 50 --- 15 04 49 61.6 225.5 1.5 29.7 99 2334 03 49 51 03 57 10 J1548 15 08 10 57.8 161.7 -0.7 -11.7 -69 2334 03 57 10 04 00 40 --- 15 11 40 58.0 163.2 -0.6 -10.8 141 2388 03 57 11 04 00 40 J1547+2052 15 11 40 56.8 164.0 -0.6 -10.2 -21 2388 No stop 04 02 10 =1545+210 15 13 10 56.8 164.6 -0.6 -9.8 69 2411 04 00 41 04 02 10 J1545+2006 15 13 10 56.2 165.8 -0.6 -9.0 -20 2411 No stop 04 05 40 =1543+202 15 16 41 56.3 167.2 -0.5 -8.1 190 2466 04 02 11 04 06 10 J1547+2052 15 17 11 57.0 166.3 -0.5 -8.7 11 2466 04 06 10 04 07 40 =1545+210 15 18 41 57.0 167.0 -0.5 -8.3 90 2489 04 06 11 04 07 40 J1548 15 18 41 58.3 166.2 -0.5 -8.9 -21 2489 No stop 04 12 10 --- 15 23 12 58.4 168.2 -0.4 -7.6 249 2558 04 07 41 04 19 10 J1548 15 30 13 58.6 171.3 -0.3 -5.6 409 2558 04 19 10 04 22 40 --- 15 33 44 58.7 172.8 -0.3 -4.6 210 2612 04 19 11 Schedule for JODRELL1 (Code Jb ) Page 6 ES112 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 12 Mar 2025 Day 71 --- 04 22 40 J1547+2052 15 33 44 57.4 173.4 -0.3 -4.2 -21 2612 No stop 04 24 10 =1545+210 15 35 14 57.4 174.1 -0.2 -3.8 69 2636 04 22 41 04 24 10 J1545+2006 15 35 14 56.7 175.1 -0.2 -3.1 -19 2636 No stop 04 27 40 =1543+202 15 38 45 56.8 176.6 -0.1 -2.2 191 2690 04 24 11 04 28 10 J1547+2052 15 39 15 57.5 175.8 -0.2 -2.7 12 2690 04 28 10 04 29 40 =1545+210 15 40 45 57.5 176.5 -0.1 -2.3 90 2713 04 28 11 04 29 40 J1548 15 40 45 58.8 175.9 -0.2 -2.6 -21 2713 No stop 04 34 10 --- 15 45 16 58.8 178.0 -0.1 -1.3 249 2782 04 29 41 04 41 10 J1548 15 52 17 58.8 181.1 0.0 0.7 409 2782 04 41 10 04 44 40 --- 15 55 47 58.8 182.7 0.1 1.7 210 2837 04 41 11 04 44 40 J1547+2052 15 55 47 57.5 183.0 0.1 1.9 -21 2837 No stop 04 46 10 =1545+210 15 57 18 57.5 183.7 0.1 2.4 69 2860 04 44 41 04 46 10 J1545+2006 15 57 18 56.7 184.5 0.2 2.9 -18 2860 No stop 04 49 40 =1543+202 16 00 48 56.7 186.0 0.2 3.8 192 2914 04 46 11 04 50 10 J1547+2052 16 01 18 57.5 185.4 0.2 3.5 12 2914 04 50 10 04 51 40 =1545+210 16 02 49 57.4 186.1 0.2 3.9 90 2937 04 50 11 04 51 40 J1548 16 02 49 58.7 185.8 0.2 3.7 -21 2937 No stop 04 56 10 --- 16 07 19 58.6 187.8 0.3 5.0 249 3007 04 51 41 05 03 10 J1548 16 14 21 58.5 190.9 0.4 7.0 409 3007 05 03 10 05 06 40 --- 16 17 51 58.4 192.4 0.5 8.0 210 3061 05 03 11 05 06 40 J1547+2052 16 17 51 57.1 192.5 0.5 8.0 -22 3061 No stop 05 08 10 =1545+210 16 19 21 57.0 193.2 0.5 8.4 68 3084 05 06 41 05 08 10 J1545+2006 16 19 21 56.2 193.9 0.5 8.8 -18 3084 No stop 05 11 40 =1543+202 16 22 52 56.1 195.3 0.6 9.7 192 3138 05 08 11 05 12 10 J1547+2052 16 23 22 56.9 194.9 0.6 9.5 12 3138 05 12 10 05 13 40 =1545+210 16 24 52 56.8 195.5 0.6 9.9 90 3161 05 12 11 05 13 40 J1548 16 24 52 58.1 195.5 0.6 9.9 -21 3161 No stop 05 18 10 --- 16 29 23 57.9 197.4 0.7 11.2 249 3231 05 13 41 05 25 10 J1548 16 36 24 57.6 200.4 0.8 13.0 409 3231 05 25 10 05 28 40 --- 16 39 55 57.4 201.9 0.8 13.9 210 3285 05 25 11 Schedule for JODRELL1 (Code Jb ) Page 7 ES112 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 12 Mar 2025 Day 71 --- 05 28 40 J1547+2052 16 39 55 56.1 201.7 0.9 13.7 -22 3285 No stop 05 30 10 =1545+210 16 41 25 56.0 202.4 0.9 14.1 68 3308 05 28 41 05 30 10 J1545+2006 16 41 25 55.2 202.9 0.9 14.3 -18 3308 No stop 05 33 40 =1543+202 16 44 56 54.9 204.3 1.0 15.2 192 3362 05 30 11 05 34 10 J1547+2052 16 45 26 55.8 204.0 0.9 15.1 12 3362 05 34 10 05 35 40 =1545+210 16 46 56 55.7 204.6 1.0 15.4 90 3385 05 34 11 05 35 40 J1548 16 46 56 57.0 204.8 1.0 15.7 -21 3385 No stop 05 40 10 --- 16 51 27 56.7 206.6 1.0 16.8 249 3455 05 35 41 05 47 10 J1548 16 58 28 56.2 209.4 1.1 18.5 409 3455 05 47 10 05 50 40 --- 17 01 58 55.9 210.8 1.2 19.3 210 3509 05 47 11 05 50 40 J1547+2052 17 01 58 54.7 210.5 1.2 18.9 -21 3509 No stop 05 52 10 =1545+210 17 03 29 54.5 211.0 1.2 19.3 69 3532 05 50 41 05 52 10 J1545+2006 17 03 29 53.7 211.4 1.3 19.4 -19 3532 No stop 05 54 30 =1543+202 17 05 49 53.5 212.3 1.3 19.9 121 3568 05 52 11 05 56 00 3C345 17 07 19 75.9 198.9 0.4 14.6 -90 3568 05 56 00 06 00 00 --- 17 11 20 75.7 201.9 0.5 16.9 150 3630 05 56 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess125.C2048 --- 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: 2 Station: JODRELL1 Total bit rate: 2048 Format: VDIF Bits per sample: 2 Sample rate: 64.000 Number of channels: 16 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 5664.00 5664.00 5664.00 5664.00 5664.00 5664.00 5664.00 5664.00 5664.00 5664.00 5664.00 5664.00 5664.00 5664.00 5664.00 5664.00 Net SB= L L U U L L U U L L U U L L U U IF SB = L L L L L L L L L L L L L L L L Pol. = RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 9 1 9 2 10 2 10 3 11 3 11 4 12 4 12 BBC SB= U U L L U U L L U U L L U U L L IF = A1 B1 A1 B1 A1 B1 A1 B1 A1 B1 A1 B1 A1 B1 A1 B1 The following frequency sets based on these setups were used. Frequency Set: 1 Setup file default. Used with PCAL = off LO sum= 4830.49 4830.49 4830.49 4830.49 4894.49 4894.49 4894.49 4894.49 4958.49 4958.49 4958.49 4958.49 5022.49 5022.49 5022.49 5022.49 BBC fr= 833.51 833.51 833.51 833.51 769.51 769.51 769.51 769.51 705.51 705.51 705.51 705.51 641.51 641.51 641.51 641.51 Bandwd= 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 Matching frequency sets: 1 Track assignments are: track1= 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * J1548 15 46 32.140619 * 15 48 43.067329 15 49 49.770088 0.00 22 17 19.74779 * 22 08 12.69641 22 03 17.51418 0.00 From catalog imbedded in main SCHED input file. 1545+210 15 45 31.120610 * 15 47 43.537755 15 48 50.986758 0.21 * J1547+2052 21 01 27.34370 * 20 52 16.61322 20 47 19.93182 0.43 From catalog imbedded in main SCHED input file. Main calibrator, Fs/x~50 mJy, 1.3 deg 1543+202 15 43 20.954571 * 15 45 34.343114 15 46 42.288579 0.15 * J1545+2006 20 15 59.07342 * 20 06 40.47056 20 01 40.07640 0.20 From catalog imbedded in main SCHED input file. Phase checker, close to CAL1, 2.15deg from target * 3C286 13 28 49.657769 * 13 31 08.288061 13 32 19.702863 0.17 J1331+3030 30 45 58.64066 * 30 30 32.95930 30 22 31.43746 0.16 1328+307 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc J1331+30 GSFC 2016a X/S astro solution, 269 observations. * 3C345 16 41 17.606229 * 16 42 58.809967 16 43 50.288940 0.79 J1642+3948 39 54 10.81492 * 39 48 36.99399 39 45 23.84002 0.59 1641+399 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc J1642+39 GSFC 2016a X/S astro solution, 53724 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 J1548 sess125.C2048 1 2 3 4 5 6 7 8 9 10 2.842 93.837 J1547+2052 sess125.C2048 1 2 3 4 5 6 7 8 9 10 1.578 47.379 J1545+2006 sess125.C2048 1 2 3 4 5 6 7 8 9 10 0.856 29.705 3C286 sess125.C2048 1 2 3 4 5 6 7 8 9 10 0.233 8.838 3C345 sess125.C2048 1 2 3 4 6 7 8 9 10 0.067 2.122 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) J1548 114.4 J1547+2052 114.7 J1545+2006 115.3 3C286 140.3 3C345 100.9 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