COVER INFORMATION Station: WSTRBORK (Code Wb ) Experiment: Confirmation of close dual quasars at z=0.6-2.5 Exp. Code: ES103C Schedule Version: 3.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: Yiping SHU Address: Purple Mountain Observatory, Chinese Academy of Sciences No. 10 Yuanhua Road Nanjing China Phone: +86 15946854256 EMAIL: yiping.shu@pmo.ac.cn Fax: Phone during observation: +86 15946854256 Observing mode: vlbi Notes: # Please turn PHASE CAL ON # v3: shorter phase-ref cycle [5min vice 8min] COVER LETTER: Schedule for WSTRBORK (Code Wb ) Page 2 Confirmation of close dual quasars at z=0.6-2.5 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 ---------------------------------------------------------------------------------------- --- Sun 23 Oct 2022 Day 296 --- Next scan frequencies: 4958.49 4958.49 4958.49 4958.49 5022.49 5022.49 5022.49 5022.49 Next BBC frequencies: 371.49 371.49 371.49 371.49 435.49 435.49 435.49 435.49 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 07 00 00 J1229+0203 09 33 07 27.3 128.3 -3.0 0.0 0 0 07 00 00 07 05 00 =3C273B 09 38 07 27.9 129.5 -2.9 0.0 300 39 07 00 01 07 06 00 J1308+0401 09 39 08 24.8 119.2 -3.5 0.0 15 39 07 06 00 07 11 00 =1305+042 09 44 08 25.5 120.4 -3.4 0.0 300 77 07 06 01 07 11 00 SDSSJ1305+05 09 44 08 27.0 120.2 -3.4 0.0 -18 77 No stop 07 14 00 --- 09 47 09 27.4 121.0 -3.3 0.0 162 100 07 11 01 07 14 30 J1308+0401 09 47 39 25.9 121.2 -3.4 0.0 12 100 07 14 30 07 16 30 =1305+042 09 49 39 26.2 121.7 -3.3 0.0 120 116 07 14 31 07 16 30 SDSSJ1305+05 09 49 39 27.8 121.6 -3.3 0.0 -18 116 No stop 07 19 30 --- 09 52 40 28.1 122.3 -3.2 0.0 162 139 07 16 31 07 19 30 J1308+0401 09 52 40 26.6 122.4 -3.3 0.0 -18 139 No stop 07 21 30 =1305+042 09 54 40 26.8 122.9 -3.2 0.0 102 155 07 19 31 07 21 30 SDSSJ1305+05 09 54 40 28.4 122.8 -3.2 0.0 -18 155 No stop 07 24 30 --- 09 57 41 28.8 123.5 -3.1 0.0 162 178 07 21 31 07 25 00 J1308+0401 09 58 11 27.3 123.7 -3.2 0.0 12 178 07 25 00 07 27 00 =1305+042 10 00 11 27.5 124.2 -3.2 0.0 120 193 07 25 01 07 27 00 SDSSJ1305+05 10 00 11 29.1 124.1 -3.1 0.0 -18 193 No stop 07 30 00 --- 10 03 12 29.5 124.9 -3.1 0.0 162 216 07 27 01 07 30 00 J1308+0401 10 03 12 27.9 125.0 -3.1 0.0 -18 216 No stop 07 32 00 =1305+042 10 05 12 28.2 125.5 -3.1 0.0 102 232 07 30 01 07 32 00 SDSSJ1305+05 10 05 12 29.7 125.4 -3.0 0.0 -18 232 No stop 07 35 00 --- 10 08 12 30.1 126.1 -3.0 0.0 162 255 07 32 01 07 35 30 J1308+0401 10 08 42 28.6 126.3 -3.0 0.0 12 255 07 35 30 07 37 30 =1305+042 10 10 43 28.8 126.8 -3.0 0.0 120 271 07 35 31 07 37 30 SDSSJ1305+05 10 10 43 30.4 126.7 -2.9 0.0 -18 271 No stop 07 40 30 --- 10 13 43 30.7 127.5 -2.9 0.0 162 294 07 37 31 07 40 30 J1308+0401 10 13 43 29.2 127.6 -2.9 0.0 -18 294 No stop 07 42 30 =1305+042 10 15 44 29.4 128.1 -2.9 0.0 102 309 07 40 31 Schedule for WSTRBORK (Code Wb ) Page 3 Confirmation of close dual quasars at z=0.6-2.5 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 ---------------------------------------------------------------------------------------- --- Sun 23 Oct 2022 Day 296 --- 07 42 30 SDSSJ1305+05 10 15 44 31.0 128.0 -2.8 0.0 -18 309 No stop 07 45 30 --- 10 18 44 31.3 128.8 -2.8 0.0 162 332 07 42 31 07 46 00 J1308+0401 10 19 14 29.8 129.0 -2.8 0.0 12 332 07 46 00 07 48 00 =1305+042 10 21 14 30.1 129.5 -2.8 0.0 120 348 07 46 01 07 48 00 SDSSJ1305+05 10 21 14 31.6 129.4 -2.8 0.0 -18 348 No stop 07 51 00 --- 10 24 15 32.0 130.2 -2.7 0.0 162 371 07 48 01 07 51 00 J1308+0401 10 24 15 30.4 130.2 -2.8 0.0 -18 371 No stop 07 53 00 =1305+042 10 26 15 30.7 130.8 -2.7 0.0 102 386 07 51 01 07 53 00 SDSSJ1305+05 10 26 15 32.2 130.7 -2.7 0.0 -18 386 No stop 07 56 00 --- 10 29 16 32.6 131.5 -2.6 0.0 162 410 07 53 01 07 56 30 J1308+0401 10 29 46 31.0 131.7 -2.7 0.0 12 410 07 56 30 07 58 30 =1305+042 10 31 46 31.3 132.2 -2.6 0.0 120 425 07 56 31 07 58 30 SDSSJ1305+05 10 31 46 32.8 132.2 -2.6 0.0 -18 425 No stop 08 01 30 --- 10 34 47 33.2 133.0 -2.5 0.0 162 448 07 58 31 08 01 30 J1308+0401 10 34 47 31.6 133.0 -2.6 0.0 -18 448 No stop 08 03 30 =1305+042 10 36 47 31.8 133.5 -2.5 0.0 102 464 08 01 31 08 03 30 SDSSJ1305+05 10 36 47 33.4 133.5 -2.5 0.0 -18 464 No stop 08 06 30 --- 10 39 48 33.7 134.3 -2.4 0.0 162 487 08 03 31 08 07 00 J1308+0401 10 40 18 32.2 134.4 -2.5 0.0 12 487 08 07 00 08 09 00 =1305+042 10 42 18 32.4 135.0 -2.5 0.0 120 502 08 07 01 08 09 00 SDSSJ1305+05 10 42 18 34.0 135.0 -2.4 0.0 -18 502 No stop 08 12 00 --- 10 45 18 34.3 135.8 -2.4 0.0 162 526 08 09 01 08 12 00 J1308+0401 10 45 18 32.7 135.8 -2.4 0.0 -18 526 No stop 08 14 00 =1305+042 10 47 19 33.0 136.3 -2.4 0.0 102 541 08 12 01 08 14 00 SDSSJ1305+05 10 47 19 34.5 136.4 -2.3 0.0 -18 541 No stop 08 17 00 --- 10 50 19 34.8 137.2 -2.3 0.0 162 564 08 14 01 08 17 30 J1308+0401 10 50 49 33.3 137.3 -2.3 0.0 12 564 08 17 30 08 19 30 =1305+042 10 52 50 33.5 137.8 -2.3 0.0 120 580 08 17 31 08 19 30 SDSSJ1305+05 10 52 50 35.1 137.9 -2.2 0.0 -18 580 No stop 08 22 30 --- 10 55 50 35.4 138.7 -2.2 0.0 162 603 08 19 31 Schedule for WSTRBORK (Code Wb ) Page 4 Confirmation of close dual quasars at z=0.6-2.5 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 ---------------------------------------------------------------------------------------- --- Sun 23 Oct 2022 Day 296 --- 08 22 30 J1308+0401 10 55 50 33.8 138.6 -2.2 0.0 -18 603 No stop 08 24 30 =1305+042 10 57 50 34.0 139.2 -2.2 0.0 102 618 08 22 31 08 24 30 SDSSJ1305+05 10 57 50 35.6 139.3 -2.1 0.0 -18 618 No stop 08 27 30 --- 11 00 51 35.9 140.2 -2.1 0.0 162 642 08 24 31 08 28 00 J1308+0401 11 01 21 34.4 140.2 -2.1 0.0 12 642 08 28 00 08 30 00 =1305+042 11 03 21 34.6 140.7 -2.1 0.0 120 657 08 28 01 08 30 00 SDSSJ1305+05 11 03 21 36.1 140.9 -2.1 0.0 -18 657 No stop 08 33 00 --- 11 06 22 36.4 141.7 -2.0 0.0 162 680 08 30 01 08 33 00 J1308+0401 11 06 22 34.8 141.6 -2.1 0.0 -18 680 No stop 08 35 00 =1305+042 11 08 22 35.0 142.1 -2.0 0.0 102 696 08 33 01 08 35 00 SDSSJ1305+05 11 08 22 36.6 142.3 -2.0 0.0 -18 696 No stop 08 38 00 --- 11 11 23 36.9 143.2 -1.9 0.0 162 719 08 35 01 08 38 30 J1308+0401 11 11 53 35.3 143.1 -2.0 0.0 12 719 08 38 30 08 40 30 =1305+042 11 13 53 35.5 143.7 -1.9 0.0 120 734 08 38 31 08 40 30 SDSSJ1305+05 11 13 53 37.1 143.9 -1.9 0.0 -18 734 No stop 08 43 30 --- 11 16 54 37.3 144.8 -1.8 0.0 162 757 08 40 31 08 43 30 J1308+0401 11 16 54 35.8 144.6 -1.9 0.0 -18 757 No stop 08 45 30 =1305+042 11 18 54 36.0 145.1 -1.8 0.0 102 773 08 43 31 08 45 30 SDSSJ1305+05 11 18 54 37.5 145.4 -1.8 0.0 -18 773 No stop 08 48 30 --- 11 21 54 37.8 146.3 -1.7 0.0 162 796 08 45 31 08 49 00 J1308+0401 11 22 24 36.3 146.2 -1.8 0.0 12 796 08 49 00 08 51 00 =1305+042 11 24 25 36.4 146.7 -1.7 0.0 120 812 08 49 01 08 51 00 SDSSJ1305+05 11 24 25 38.0 147.0 -1.7 0.0 -18 812 No stop 08 54 00 --- 11 27 25 38.2 147.9 -1.7 0.0 162 835 08 51 01 08 54 00 J1308+0401 11 27 25 36.7 147.6 -1.7 0.0 -18 835 No stop 08 56 00 =1305+042 11 29 26 36.8 148.2 -1.7 0.0 102 850 08 54 01 08 57 00 J1229+0203 11 30 26 37.5 161.0 -1.0 0.0 14 850 08 57 00 09 02 00 =3C273B 11 35 27 37.8 162.6 -0.9 0.0 300 889 08 57 01 09 03 00 J1308+0401 11 36 27 37.4 150.3 -1.5 0.0 15 889 09 03 00 09 08 00 =1305+042 11 41 28 37.7 151.8 -1.5 0.0 300 927 09 03 01 Schedule for WSTRBORK (Code Wb ) Page 5 Confirmation of close dual quasars at z=0.6-2.5 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 ---------------------------------------------------------------------------------------- --- Sun 23 Oct 2022 Day 296 --- 09 08 00 SDSSJ1305+05 11 41 28 39.3 152.2 -1.4 0.0 -18 927 No stop 09 11 00 --- 11 44 28 39.5 153.1 -1.4 0.0 162 951 09 08 01 09 11 30 J1308+0401 11 44 58 38.0 152.9 -1.4 0.0 12 951 09 11 30 09 13 30 =1305+042 11 46 59 38.1 153.5 -1.4 0.0 120 966 09 11 31 09 13 30 SDSSJ1305+05 11 46 59 39.7 153.9 -1.3 0.0 -18 966 No stop 09 16 30 --- 11 49 59 39.9 154.8 -1.3 0.0 162 989 09 13 31 09 16 30 J1308+0401 11 49 59 38.3 154.4 -1.3 0.0 -18 989 No stop 09 18 30 =1305+042 11 51 59 38.5 155.0 -1.3 0.0 102 1005 09 16 31 09 18 30 SDSSJ1305+05 11 51 59 40.0 155.5 -1.2 0.0 -18 1005 No stop 09 21 30 --- 11 55 00 40.2 156.4 -1.2 0.0 162 1028 09 18 31 09 22 00 J1308+0401 11 55 30 38.7 156.1 -1.2 0.0 12 1028 09 22 00 09 24 00 =1305+042 11 57 30 38.8 156.7 -1.2 0.0 120 1043 09 22 01 09 24 00 SDSSJ1305+05 11 57 30 40.3 157.2 -1.2 0.0 -18 1043 No stop 09 27 00 --- 12 00 31 40.5 158.2 -1.1 0.0 162 1067 09 24 01 09 27 00 J1308+0401 12 00 31 39.0 157.7 -1.1 0.0 -18 1067 No stop 09 29 00 =1305+042 12 02 31 39.1 158.3 -1.1 0.0 102 1082 09 27 01 09 29 00 SDSSJ1305+05 12 02 31 40.6 158.8 -1.1 0.0 -18 1082 No stop 09 32 00 --- 12 05 32 40.8 159.8 -1.0 0.0 162 1105 09 29 01 09 32 30 J1308+0401 12 06 02 39.3 159.4 -1.1 0.0 12 1105 09 32 30 09 34 30 =1305+042 12 08 02 39.4 160.0 -1.0 0.0 120 1121 09 32 31 09 34 30 SDSSJ1305+05 12 08 02 40.9 160.6 -1.0 0.0 -18 1121 No stop 09 37 30 --- 12 11 02 41.0 161.5 -0.9 0.0 162 1144 09 34 31 09 37 30 J1308+0401 12 11 02 39.5 161.0 -1.0 0.0 -18 1144 No stop 09 39 30 =1305+042 12 13 03 39.6 161.6 -0.9 0.0 102 1159 09 37 31 09 39 30 SDSSJ1305+05 12 13 03 41.1 162.2 -0.9 0.0 -18 1159 No stop 09 42 30 --- 12 16 03 41.3 163.2 -0.8 0.0 162 1183 09 39 31 09 43 00 J1308+0401 12 16 33 39.8 162.7 -0.9 0.0 12 1183 09 43 00 09 45 00 =1305+042 12 18 34 39.9 163.4 -0.8 0.0 120 1198 09 43 01 09 45 00 SDSSJ1305+05 12 18 34 41.4 164.0 -0.8 0.0 -18 1198 No stop 09 48 00 --- 12 21 34 41.5 165.0 -0.8 0.0 162 1221 09 45 01 Schedule for WSTRBORK (Code Wb ) Page 6 Confirmation of close dual quasars at z=0.6-2.5 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 ---------------------------------------------------------------------------------------- --- Sun 23 Oct 2022 Day 296 --- 09 48 00 J1308+0401 12 21 34 40.0 164.4 -0.8 0.0 -18 1221 No stop 09 50 00 =1305+042 12 23 35 40.1 165.0 -0.8 0.0 102 1237 09 48 01 09 50 00 SDSSJ1305+05 12 23 35 41.6 165.6 -0.7 0.0 -18 1237 No stop 09 53 00 --- 12 26 35 41.7 166.6 -0.7 0.0 162 1260 09 50 01 09 53 30 J1308+0401 12 27 05 40.2 166.1 -0.7 0.0 12 1260 09 53 30 09 55 30 =1305+042 12 29 05 40.3 166.8 -0.7 0.0 120 1275 09 53 31 09 55 30 SDSSJ1305+05 12 29 05 41.8 167.4 -0.6 0.0 -18 1275 No stop 09 58 30 --- 12 32 06 41.9 168.4 -0.6 0.0 162 1298 09 55 31 09 58 30 J1308+0401 12 32 06 40.4 167.8 -0.6 0.0 -18 1298 No stop 10 00 30 =1305+042 12 34 06 40.4 168.4 -0.6 0.0 102 1314 09 58 31 10 00 30 SDSSJ1305+05 12 34 06 41.9 169.1 -0.5 0.0 -18 1314 No stop 10 03 30 --- 12 37 07 42.0 170.1 -0.5 0.0 162 1337 10 00 31 10 04 00 J1308+0401 12 37 37 40.5 169.5 -0.5 0.0 12 1337 10 04 00 10 06 00 =1305+042 12 39 37 40.6 170.2 -0.5 0.0 120 1353 10 04 01 10 06 00 SDSSJ1305+05 12 39 37 42.1 170.9 -0.4 0.0 -18 1353 No stop 10 09 00 --- 12 42 38 42.1 172.0 -0.4 0.0 162 1376 10 06 01 10 09 00 J1308+0401 12 42 38 40.7 171.2 -0.4 0.0 -18 1376 No stop 10 11 00 =1305+042 12 44 38 40.7 171.8 -0.4 0.0 102 1391 10 09 01 10 11 00 SDSSJ1305+05 12 44 38 42.2 172.6 -0.4 0.0 -18 1391 No stop 10 14 00 --- 12 47 38 42.2 173.6 -0.3 0.0 162 1414 10 11 01 10 14 30 J1308+0401 12 48 09 40.8 173.0 -0.4 0.0 12 1414 10 14 30 10 16 30 =1305+042 12 50 09 40.8 173.7 -0.3 0.0 120 1430 10 14 31 10 16 30 SDSSJ1305+05 12 50 09 42.3 174.5 -0.3 0.0 -18 1430 No stop 10 19 30 --- 12 53 09 42.3 175.5 -0.2 0.0 162 1453 10 16 31 10 19 30 J1308+0401 12 53 09 40.9 174.6 -0.3 0.0 -18 1453 No stop 10 21 30 =1305+042 12 55 10 40.9 175.3 -0.2 0.0 102 1469 10 19 31 10 21 30 SDSSJ1305+05 12 55 10 42.3 176.2 -0.2 0.0 -18 1469 No stop 10 24 30 --- 12 58 10 42.3 177.2 -0.1 0.0 162 1492 10 21 31 10 25 00 J1308+0401 12 58 40 40.9 176.5 -0.2 0.0 12 1492 10 25 00 10 27 00 =1305+042 13 00 41 41.0 177.1 -0.1 0.0 120 1507 10 25 01 Schedule for WSTRBORK (Code Wb ) Page 7 Confirmation of close dual quasars at z=0.6-2.5 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 ---------------------------------------------------------------------------------------- --- Sun 23 Oct 2022 Day 296 --- 10 27 00 SDSSJ1305+05 13 00 41 42.4 178.0 -0.1 0.0 -18 1507 No stop 10 30 00 --- 13 03 41 42.4 179.0 -0.0 0.0 162 1530 10 27 01 10 30 00 J1308+0401 13 03 41 41.0 178.1 -0.1 0.0 -18 1530 No stop 10 32 00 =1305+042 13 05 41 41.0 178.8 -0.1 0.0 102 1546 10 30 01 10 32 00 SDSSJ1305+05 13 05 41 42.4 179.7 -0.0 0.0 -18 1546 No stop 10 35 00 --- 13 08 42 42.4 180.7 0.0 0.0 162 1569 10 32 01 10 35 30 J1308+0401 13 09 12 41.0 179.9 -0.0 0.0 12 1569 10 35 30 10 37 30 =1305+042 13 11 12 41.0 180.6 0.0 0.0 120 1584 10 35 31 10 37 30 SDSSJ1305+05 13 11 12 42.4 181.6 0.1 0.0 -18 1584 No stop 10 40 30 --- 13 14 13 42.4 182.6 0.1 0.0 162 1608 10 37 31 10 40 30 J1308+0401 13 14 13 41.0 181.6 0.1 0.0 -18 1608 No stop 10 42 30 =1305+042 13 16 13 41.0 182.3 0.1 0.0 102 1623 10 40 31 10 42 30 SDSSJ1305+05 13 16 13 42.3 183.2 0.2 0.0 -18 1623 No stop 10 45 30 --- 13 19 14 42.3 184.3 0.2 0.0 162 1646 10 42 31 10 46 00 J1308+0401 13 19 44 40.9 183.4 0.2 0.0 12 1646 10 46 00 10 48 00 =1305+042 13 21 44 40.9 184.1 0.2 0.0 120 1662 10 46 01 10 48 00 SDSSJ1305+05 13 21 44 42.3 185.1 0.3 0.0 -18 1662 No stop 10 51 00 --- 13 24 45 42.2 186.1 0.3 0.0 162 1685 10 48 01 10 51 00 J1308+0401 13 24 45 40.9 185.1 0.3 0.0 -18 1685 No stop 10 53 00 =1305+042 13 26 45 40.9 185.7 0.3 0.0 102 1700 10 51 01 10 54 00 J1229+0203 13 27 45 37.6 198.3 1.0 0.0 14 1700 10 54 00 10 59 00 =3C273B 13 32 46 37.4 199.8 1.0 0.0 300 1739 10 54 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess322.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: 9 Station: WSTRBORK 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= 4587.00 4587.00 4587.00 4587.00 4587.00 4587.00 4587.00 4587.00 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 B1 A1 B1 A1 B1 A1 B1 The following frequency sets based on these setups were used. Frequency Set: 3 Setup file default. Used with PCAL = 1MHz LO sum= 4958.49 4958.49 4958.49 4958.49 5022.49 5022.49 5022.49 5022.49 BBC fr= 371.49 371.49 371.49 371.49 435.49 435.49 435.49 435.49 Bandwd= 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 Matching frequency sets: 3 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) * SDSSJ1305+05 13 02 55.046471 * 13 05 27.020000 13 06 34.347603 0.00 05 40 52.45613 * 05 24 49.43000 05 17 40.68715 0.00 From catalog imbedded in main SCHED input file. 3C273B 12 26 33.245835 * 12 29 06.699731 12 30 14.745512 1.03 * J1229+0203 02 19 43.30570 * 02 03 08.59820 01 55 46.34723 1.38 3C273 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc 1226+023 GSFC 2016a X/S astro solution, 32136 observations. J1229+02 1305+042 13 05 43.183402 * 13 08 15.553095 13 09 23.052779 0.21 * J1308+0401 04 17 08.92252 * 04 01 09.35114 03 54 02.29568 0.47 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 127 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 SDSSJ1305+0sess322.C2048 1 2 3 4 5 6 7 8 9 10 2.000 79.696 J1229+0203 sess322.C2048 1 2 3 4 5 6 7 8 9 10 0.250 11.191 J1308+0401 sess322.C2048 1 2 3 4 5 6 7 8 9 10 1.500 62.148 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) SDSSJ1305+05 20.1 J1229+0203 24.2 J1308+0401 18.6 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