COVER INFORMATION Station: WSTRBORK (Code Wb ) Experiment: Confirmation of close dual quasars at z=0.6-2.5 Exp. Code: ES103J Schedule Version: 2.00 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 # 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 ---------------------------------------------------------------------------------------- --- Wed 1 Mar 2023 Day 60 --- Next scan frequencies: 8383.49 8383.49 8383.49 8383.49 8447.49 8447.49 8447.49 8447.49 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 17 00 00 J0927+3902 04 03 21 34.9 69.7 -5.4 0.0 0 0 17 00 00 17 05 00 =4C39.25 04 08 22 35.6 70.5 -5.3 0.0 300 39 17 00 01 17 06 00 J0934+4908 04 09 22 41.3 59.7 -5.4 0.0 13 39 17 06 00 17 11 00 =0930+493 04 14 23 42.0 60.4 -5.4 0.0 300 77 17 06 01 17 11 00 SDSSJ0933+47 04 14 23 41.2 62.1 -5.3 0.0 -18 77 No stop 17 14 00 --- 04 17 23 41.6 62.5 -5.3 0.0 162 100 17 11 01 17 14 30 J0934+4908 04 17 53 42.4 60.8 -5.3 0.0 12 100 17 14 30 17 16 30 =0930+493 04 19 53 42.7 61.1 -5.3 0.0 120 116 17 14 31 17 16 30 SDSSJ0933+47 04 19 53 41.9 62.8 -5.3 0.0 -18 116 No stop 17 19 30 --- 04 22 54 42.3 63.2 -5.2 0.0 162 139 17 16 31 17 19 30 J0934+4908 04 22 54 43.1 61.5 -5.2 0.0 -18 139 No stop 17 21 30 =0930+493 04 24 54 43.3 61.7 -5.2 0.0 102 155 17 19 31 17 21 30 SDSSJ0933+47 04 24 54 42.6 63.5 -5.2 0.0 -18 155 No stop 17 24 30 --- 04 27 55 43.0 63.9 -5.1 0.0 162 178 17 21 31 17 25 00 J0934+4908 04 28 25 43.8 62.2 -5.1 0.0 12 178 17 25 00 17 27 00 =0930+493 04 30 25 44.1 62.5 -5.1 0.0 120 193 17 25 01 17 27 00 SDSSJ0933+47 04 30 25 43.3 64.3 -5.1 0.0 -18 193 No stop 17 30 00 --- 04 33 26 43.7 64.7 -5.0 0.0 162 216 17 27 01 17 30 00 J0934+4908 04 33 26 44.5 62.9 -5.0 0.0 -18 216 No stop 17 32 00 =0930+493 04 35 26 44.8 63.1 -5.0 0.0 102 232 17 30 01 17 32 00 SDSSJ0933+47 04 35 26 44.0 65.0 -5.0 0.0 -18 232 No stop 17 35 00 --- 04 38 27 44.4 65.4 -4.9 0.0 162 255 17 32 01 17 35 30 J0934+4908 04 38 57 45.2 63.6 -4.9 0.0 12 255 17 35 30 17 37 30 =0930+493 04 40 57 45.5 63.9 -4.9 0.0 120 271 17 35 31 17 37 30 SDSSJ0933+47 04 40 57 44.8 65.7 -4.9 0.0 -18 271 No stop 17 40 30 --- 04 43 57 45.2 66.1 -4.8 0.0 162 294 17 37 31 17 40 30 J0934+4908 04 43 57 45.9 64.3 -4.9 0.0 -18 294 No stop 17 42 30 =0930+493 04 45 58 46.2 64.5 -4.8 0.0 102 309 17 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 ---------------------------------------------------------------------------------------- --- Wed 1 Mar 2023 Day 60 --- 17 42 30 SDSSJ0933+47 04 45 58 45.5 66.4 -4.8 0.0 -18 309 No stop 17 45 30 --- 04 48 58 45.9 66.8 -4.8 0.0 162 332 17 42 31 17 46 00 J0934+4908 04 49 28 46.7 65.0 -4.8 0.0 12 332 17 46 00 17 48 00 =0930+493 04 51 29 46.9 65.3 -4.7 0.0 120 348 17 46 01 17 48 00 SDSSJ0933+47 04 51 29 46.2 67.2 -4.7 0.0 -18 348 No stop 17 51 00 --- 04 54 29 46.6 67.6 -4.7 0.0 162 371 17 48 01 17 51 00 J0934+4908 04 54 29 47.3 65.7 -4.7 0.0 -18 371 No stop 17 53 00 =0930+493 04 56 29 47.6 65.9 -4.7 0.0 102 386 17 51 01 17 53 00 SDSSJ0933+47 04 56 29 46.9 67.9 -4.6 0.0 -18 386 No stop 17 56 00 --- 04 59 30 47.3 68.3 -4.6 0.0 162 410 17 53 01 17 56 30 J0934+4908 05 00 00 48.1 66.4 -4.6 0.0 12 410 17 56 30 17 58 30 =0930+493 05 02 00 48.4 66.6 -4.6 0.0 120 425 17 56 31 17 58 30 SDSSJ0933+47 05 02 00 47.7 68.6 -4.5 0.0 -18 425 No stop 18 01 30 --- 05 05 01 48.1 69.1 -4.5 0.0 162 448 17 58 31 18 01 30 J0934+4908 05 05 01 48.8 67.0 -4.5 0.0 -18 448 No stop 18 03 30 =0930+493 05 07 01 49.1 67.3 -4.5 0.0 102 464 18 01 31 18 03 30 SDSSJ0933+47 05 07 01 48.4 69.3 -4.5 0.0 -18 464 No stop 18 06 30 --- 05 10 02 48.8 69.8 -4.4 0.0 162 487 18 03 31 18 07 00 J0934+4908 05 10 32 49.6 67.8 -4.4 0.0 12 487 18 07 00 18 09 00 =0930+493 05 12 32 49.8 68.0 -4.4 0.0 120 502 18 07 01 18 09 00 SDSSJ0933+47 05 12 32 49.2 70.1 -4.4 0.0 -18 502 No stop 18 12 00 --- 05 15 33 49.6 70.5 -4.3 0.0 162 526 18 09 01 18 12 00 J0934+4908 05 15 33 50.3 68.4 -4.3 0.0 -18 526 No stop 18 14 00 =0930+493 05 17 33 50.5 68.7 -4.3 0.0 102 541 18 12 01 18 14 00 SDSSJ0933+47 05 17 33 49.9 70.8 -4.3 0.0 -18 541 No stop 18 17 00 --- 05 20 33 50.3 71.2 -4.2 0.0 162 564 18 14 01 18 17 30 J0934+4908 05 21 04 51.0 69.2 -4.2 0.0 12 564 18 17 30 18 19 30 =0930+493 05 23 04 51.3 69.4 -4.2 0.0 120 580 18 17 31 18 19 30 SDSSJ0933+47 05 23 04 50.7 71.6 -4.2 0.0 -18 580 No stop 18 22 30 --- 05 26 04 51.1 72.0 -4.1 0.0 162 603 18 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 ---------------------------------------------------------------------------------------- --- Wed 1 Mar 2023 Day 60 --- 18 22 30 J0934+4908 05 26 04 51.7 69.8 -4.2 0.0 -18 603 No stop 18 24 30 =0930+493 05 28 05 52.0 70.1 -4.1 0.0 102 618 18 22 31 18 24 30 SDSSJ0933+47 05 28 05 51.4 72.3 -4.1 0.0 -18 618 No stop 18 27 30 --- 05 31 05 51.8 72.7 -4.1 0.0 162 642 18 24 31 18 28 00 J0934+4908 05 31 35 52.5 70.6 -4.1 0.0 12 642 18 28 00 18 30 00 =0930+493 05 33 36 52.8 70.8 -4.0 0.0 120 657 18 28 01 18 30 00 SDSSJ0933+47 05 33 36 52.2 73.1 -4.0 0.0 -18 657 No stop 18 33 00 --- 05 36 36 52.6 73.5 -4.0 0.0 162 680 18 30 01 18 33 00 J0934+4908 05 36 36 53.2 71.3 -4.0 0.0 -18 680 No stop 18 35 00 =0930+493 05 38 36 53.5 71.5 -4.0 0.0 102 696 18 33 01 18 35 00 SDSSJ0933+47 05 38 36 52.9 73.8 -3.9 0.0 -18 696 No stop 18 38 00 --- 05 41 37 53.4 74.2 -3.9 0.0 162 719 18 35 01 18 38 30 J0934+4908 05 42 07 54.0 72.0 -3.9 0.0 12 719 18 38 30 18 40 30 =0930+493 05 44 07 54.3 72.3 -3.9 0.0 120 734 18 38 31 18 40 30 SDSSJ0933+47 05 44 07 53.7 74.6 -3.8 0.0 -18 734 No stop 18 43 30 --- 05 47 08 54.2 75.0 -3.8 0.0 162 757 18 40 31 18 43 30 J0934+4908 05 47 08 54.8 72.7 -3.8 0.0 -18 757 No stop 18 45 30 =0930+493 05 49 08 55.0 72.9 -3.8 0.0 102 773 18 43 31 18 45 30 SDSSJ0933+47 05 49 08 54.5 75.3 -3.8 0.0 -18 773 No stop 18 48 30 --- 05 52 09 54.9 75.8 -3.7 0.0 162 796 18 45 31 18 49 00 J0934+4908 05 52 39 55.6 73.4 -3.7 0.0 12 796 18 49 00 18 51 00 =0930+493 05 54 39 55.8 73.7 -3.7 0.0 120 812 18 49 01 18 51 00 SDSSJ0933+47 05 54 39 55.3 76.1 -3.7 0.0 -18 812 No stop 18 54 00 --- 05 57 40 55.7 76.6 -3.6 0.0 162 835 18 51 01 18 54 00 J0934+4908 05 57 40 56.3 74.1 -3.6 0.0 -18 835 No stop 18 56 00 =0930+493 05 59 40 56.6 74.4 -3.6 0.0 102 850 18 54 01 18 57 00 J0927+3902 06 00 40 52.2 90.3 -3.5 0.0 13 850 18 57 00 19 02 00 =4C39.25 06 05 41 53.0 91.3 -3.4 0.0 300 889 18 57 01 19 03 00 J0934+4908 06 06 41 57.6 75.4 -3.5 0.0 13 889 19 03 00 19 08 00 =0930+493 06 11 42 58.3 76.1 -3.4 0.0 300 927 19 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 ---------------------------------------------------------------------------------------- --- Wed 1 Mar 2023 Day 60 --- 19 08 00 SDSSJ0933+47 06 11 42 57.8 78.7 -3.4 0.0 -18 927 No stop 19 11 00 --- 06 14 42 58.2 79.1 -3.3 0.0 162 951 19 08 01 19 11 30 J0934+4908 06 15 12 58.8 76.6 -3.3 0.0 12 951 19 11 30 19 13 30 =0930+493 06 17 13 59.1 76.8 -3.3 0.0 120 966 19 11 31 19 13 30 SDSSJ0933+47 06 17 13 58.6 79.5 -3.3 0.0 -18 966 No stop 19 16 30 --- 06 20 13 59.0 80.0 -3.2 0.0 162 989 19 13 31 19 16 30 J0934+4908 06 20 13 59.6 77.3 -3.3 0.0 -18 989 No stop 19 18 30 =0930+493 06 22 14 59.9 77.6 -3.2 0.0 102 1005 19 16 31 19 18 30 SDSSJ0933+47 06 22 14 59.3 80.3 -3.2 0.0 -18 1005 No stop 19 21 30 --- 06 25 14 59.8 80.8 -3.2 0.0 162 1028 19 18 31 19 22 00 J0934+4908 06 25 44 60.4 78.1 -3.2 0.0 12 1028 19 22 00 19 24 00 =0930+493 06 27 44 60.7 78.4 -3.1 0.0 120 1043 19 22 01 19 24 00 SDSSJ0933+47 06 27 44 60.1 81.2 -3.1 0.0 -18 1043 No stop 19 27 00 --- 06 30 45 60.6 81.7 -3.1 0.0 162 1067 19 24 01 19 27 00 J0934+4908 06 30 45 61.1 78.8 -3.1 0.0 -18 1067 No stop 19 29 00 =0930+493 06 32 45 61.4 79.1 -3.1 0.0 102 1082 19 27 01 19 29 00 SDSSJ0933+47 06 32 45 60.9 82.0 -3.0 0.0 -18 1082 No stop 19 32 00 --- 06 35 46 61.3 82.5 -3.0 0.0 162 1105 19 29 01 19 32 30 J0934+4908 06 36 16 61.9 79.6 -3.0 0.0 12 1105 19 32 30 19 34 30 =0930+493 06 38 16 62.2 79.9 -3.0 0.0 120 1121 19 32 31 19 34 30 SDSSJ0933+47 06 38 16 61.7 82.9 -2.9 0.0 -18 1121 No stop 19 37 30 --- 06 41 17 62.2 83.4 -2.9 0.0 162 1144 19 34 31 19 37 30 J0934+4908 06 41 17 62.7 80.4 -2.9 0.0 -18 1144 No stop 19 39 30 =0930+493 06 43 17 63.0 80.7 -2.9 0.0 102 1159 19 37 31 19 39 30 SDSSJ0933+47 06 43 17 62.5 83.7 -2.9 0.0 -18 1159 No stop 19 42 30 --- 06 46 17 62.9 84.2 -2.8 0.0 162 1183 19 39 31 19 43 00 J0934+4908 06 46 48 63.5 81.2 -2.8 0.0 12 1183 19 43 00 19 45 00 =0930+493 06 48 48 63.8 81.5 -2.8 0.0 120 1198 19 43 01 19 45 00 SDSSJ0933+47 06 48 48 63.3 84.7 -2.8 0.0 -18 1198 No stop 19 48 00 --- 06 51 48 63.7 85.2 -2.7 0.0 162 1221 19 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 ---------------------------------------------------------------------------------------- --- Wed 1 Mar 2023 Day 60 --- 19 48 00 J0934+4908 06 51 48 64.3 82.0 -2.7 0.0 -18 1221 No stop 19 50 00 =0930+493 06 53 49 64.6 82.3 -2.7 0.0 102 1237 19 48 01 19 50 00 SDSSJ0933+47 06 53 49 64.0 85.5 -2.7 0.0 -18 1237 No stop 19 53 00 --- 06 56 49 64.5 86.1 -2.6 0.0 162 1260 19 50 01 19 53 30 J0934+4908 06 57 19 65.1 82.8 -2.6 0.0 12 1260 19 53 30 19 55 30 =0930+493 06 59 20 65.4 83.2 -2.6 0.0 120 1275 19 53 31 19 55 30 SDSSJ0933+47 06 59 20 64.9 86.5 -2.6 0.0 -18 1275 No stop 19 58 30 --- 07 02 20 65.3 87.0 -2.5 0.0 162 1298 19 55 31 19 58 30 J0934+4908 07 02 20 65.8 83.6 -2.6 0.0 -18 1298 No stop 20 00 30 =0930+493 07 04 20 66.1 84.0 -2.5 0.0 102 1314 19 58 31 20 00 30 SDSSJ0933+47 07 04 20 65.6 87.4 -2.5 0.0 -18 1314 No stop 20 03 30 --- 07 07 21 66.1 88.0 -2.5 0.0 162 1337 20 00 31 20 04 00 J0934+4908 07 07 51 66.7 84.5 -2.5 0.0 12 1337 20 04 00 20 06 00 =0930+493 07 09 51 67.0 84.9 -2.4 0.0 120 1353 20 04 01 20 06 00 SDSSJ0933+47 07 09 51 66.5 88.4 -2.4 0.0 -18 1353 No stop 20 09 00 --- 07 12 52 66.9 89.0 -2.4 0.0 162 1376 20 06 01 20 09 00 J0934+4908 07 12 52 67.4 85.4 -2.4 0.0 -18 1376 No stop 20 11 00 =0930+493 07 14 52 67.7 85.7 -2.3 0.0 102 1391 20 09 01 20 11 00 SDSSJ0933+47 07 14 52 67.2 89.4 -2.3 0.0 -18 1391 No stop 20 14 00 --- 07 17 53 67.7 90.0 -2.3 0.0 162 1414 20 11 01 20 14 30 J0934+4908 07 18 23 68.2 86.3 -2.3 0.0 12 1414 20 14 30 20 16 30 =0930+493 07 20 23 68.5 86.7 -2.3 0.0 120 1430 20 14 31 20 16 30 SDSSJ0933+47 07 20 23 68.1 90.5 -2.2 0.0 -18 1430 No stop 20 19 30 --- 07 23 24 68.5 91.1 -2.2 0.0 162 1453 20 16 31 20 19 30 J0934+4908 07 23 24 69.0 87.2 -2.2 0.0 -18 1453 No stop 20 21 30 =0930+493 07 25 24 69.3 87.6 -2.2 0.0 102 1469 20 19 31 20 21 30 SDSSJ0933+47 07 25 24 68.8 91.5 -2.2 0.0 -18 1469 No stop 20 24 30 --- 07 28 24 69.3 92.2 -2.1 0.0 162 1492 20 21 31 20 25 00 J0934+4908 07 28 54 69.8 88.3 -2.1 0.0 12 1492 20 25 00 20 27 00 =0930+493 07 30 55 70.1 88.6 -2.1 0.0 120 1507 20 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 ---------------------------------------------------------------------------------------- --- Wed 1 Mar 2023 Day 60 --- 20 27 00 SDSSJ0933+47 07 30 55 69.6 92.7 -2.1 0.0 -18 1507 No stop 20 30 00 --- 07 33 55 70.1 93.4 -2.0 0.0 162 1530 20 27 01 20 30 00 J0934+4908 07 33 55 70.6 89.2 -2.0 0.0 -18 1530 No stop 20 32 00 =0930+493 07 35 56 70.9 89.6 -2.0 0.0 102 1546 20 30 01 20 32 00 SDSSJ0933+47 07 35 56 70.4 93.8 -2.0 0.0 -18 1546 No stop 20 35 00 --- 07 38 56 70.8 94.5 -1.9 0.0 162 1569 20 32 01 20 35 30 J0934+4908 07 39 26 71.4 90.3 -1.9 0.0 12 1569 20 35 30 20 37 30 =0930+493 07 41 27 71.7 90.7 -1.9 0.0 120 1584 20 35 31 20 37 30 SDSSJ0933+47 07 41 27 71.2 95.1 -1.9 0.0 -18 1584 No stop 20 40 30 --- 07 44 27 71.7 95.9 -1.8 0.0 162 1608 20 37 31 20 40 30 J0934+4908 07 44 27 72.2 91.3 -1.9 0.0 -18 1608 No stop 20 42 30 =0930+493 07 46 27 72.5 91.8 -1.8 0.0 102 1623 20 40 31 20 42 30 SDSSJ0933+47 07 46 27 72.0 96.4 -1.8 0.0 -18 1623 No stop 20 45 30 --- 07 49 28 72.4 97.1 -1.8 0.0 162 1646 20 42 31 20 46 00 J0934+4908 07 49 58 73.0 92.5 -1.8 0.0 12 1646 20 46 00 20 48 00 =0930+493 07 51 58 73.3 93.0 -1.7 0.0 120 1662 20 46 01 20 48 00 SDSSJ0933+47 07 51 58 72.8 97.8 -1.7 0.0 -18 1662 No stop 20 51 00 --- 07 54 59 73.2 98.6 -1.7 0.0 162 1685 20 48 01 20 51 00 J0934+4908 07 54 59 73.8 93.7 -1.7 0.0 -18 1685 No stop 20 53 00 =0930+493 07 56 59 74.1 94.1 -1.6 0.0 102 1700 20 51 01 20 54 00 J0927+3902 07 57 59 69.1 122.9 -1.5 0.0 13 1700 20 54 00 21 00 00 =4C39.25 08 04 00 69.9 125.5 -1.4 0.0 360 1747 20 54 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess123.X2048 --- 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= 8012.00 8012.00 8012.00 8012.00 8012.00 8012.00 8012.00 8012.00 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: 1 Setup file default. Used with PCAL = off LO sum= 8383.49 8383.49 8383.49 8383.49 8447.49 8447.49 8447.49 8447.49 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: 1 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) * SDSSJ0933+47 09 30 03.015463 * 09 33 21.120000 09 34 54.058664 0.00 47 52 35.27416 * 47 39 15.91000 47 33 08.47211 0.00 From catalog imbedded in main SCHED input file. 4C39.25 09 23 55.319216 * 09 27 03.013937 09 28 30.904303 0.31 * J0927+3902 39 15 23.56644 * 39 02 20.85185 38 56 20.29363 0.16 0923+392 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc J0927+39 GSFC 2016a X/S astro solution, 250526 observations. 0930+493 09 30 55.520302 * 09 34 15.762161 09 35 49.739081 0.19 * J0934+4908 49 21 43.43738 * 49 08 21.72954 49 02 13.34913 0.14 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc GSFC 2016a X/S astro solution, 139 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 SDSSJ0933+4sess123.X2048 1 2 3 4 5 6 7 9 2.000 63.539 J0927+3902 sess123.X2048 1 2 3 4 5 6 7 9 0.267 9.377 J0934+4908 sess123.X2048 1 2 3 4 5 6 7 9 1.500 49.244 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) SDSSJ0933+47 136.9 J0927+3902 143.6 J0934+4908 135.6 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