COVER INFORMATION Station: MEDICINA (Code Mc ) 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 MEDICINA (Code Mc ) 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: 8319.49 8319.49 8319.49 8319.49 8383.49 8383.49 8383.49 8383.49 8447.49 8447.49 8447.49 8447.49 8511.49 8511.49 8511.49 8511.49 Next BBC frequencies: 239.49 239.49 239.49 239.49 303.49 303.49 303.49 303.49 367.49 367.49 367.49 367.49 431.49 431.49 431.49 431.49 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 17 00 00 J0927+3902 04 23 34 34.9 427.1 -5.1 -57.6 0 0 17 00 00 17 05 00 =4C39.25 04 28 34 35.8 427.8 -5.0 -58.1 300 77 17 00 01 17 06 00 J0934+4908 04 29 34 39.6 415.9 -5.1 -64.2 40 77 17 06 00 17 11 00 =0930+493 04 34 35 40.4 416.4 -5.0 -64.9 300 155 17 06 01 17 11 00 SDSSJ0933+47 04 34 35 39.9 418.2 -5.0 -63.9 -6 155 No stop 17 14 00 --- 04 37 36 40.3 418.5 -5.0 -64.3 174 201 17 11 01 17 14 30 J0934+4908 04 38 06 40.9 416.7 -5.0 -65.4 24 201 17 14 30 17 16 30 =0930+493 04 40 06 41.2 416.9 -4.9 -65.6 120 232 17 14 31 17 16 30 SDSSJ0933+47 04 40 06 40.7 418.7 -4.9 -64.6 -6 232 No stop 17 19 30 --- 04 43 07 41.2 419.0 -4.9 -64.9 174 278 17 16 31 17 19 30 J0934+4908 04 43 07 41.7 417.1 -4.9 -66.0 -6 278 No stop 17 21 30 =0930+493 04 45 07 42.0 417.3 -4.8 -66.3 114 309 17 19 31 17 21 30 SDSSJ0933+47 04 45 07 41.5 419.2 -4.8 -65.2 -6 309 No stop 17 24 30 --- 04 48 08 42.0 419.5 -4.8 -65.5 174 356 17 21 31 17 25 00 J0934+4908 04 48 38 42.5 417.6 -4.8 -66.7 24 356 17 25 00 17 27 00 =0930+493 04 50 38 42.8 417.8 -4.8 -67.0 120 386 17 25 01 17 27 00 SDSSJ0933+47 04 50 38 42.3 419.7 -4.7 -65.8 -6 386 No stop 17 30 00 --- 04 53 38 42.8 420.0 -4.7 -66.2 174 433 17 27 01 17 30 00 J0934+4908 04 53 38 43.2 418.1 -4.7 -67.4 -7 433 No stop 17 32 00 =0930+493 04 55 39 43.6 418.2 -4.7 -67.6 113 464 17 30 01 17 32 00 SDSSJ0933+47 04 55 39 43.1 420.2 -4.7 -66.4 -7 464 No stop 17 35 00 --- 04 58 39 43.6 420.5 -4.6 -66.8 173 510 17 32 01 17 35 30 J0934+4908 04 59 09 44.1 418.5 -4.6 -68.1 23 510 17 35 30 17 37 30 =0930+493 05 01 10 44.4 418.7 -4.6 -68.3 120 541 17 35 31 17 37 30 SDSSJ0933+47 05 01 10 44.0 420.7 -4.6 -67.1 -7 541 No stop 17 40 30 --- 05 04 10 44.4 421.0 -4.5 -67.5 173 587 17 37 31 Schedule for MEDICINA (Code Mc ) 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 40 30 J0934+4908 05 04 10 44.8 419.0 -4.5 -68.7 -7 587 No stop 17 42 30 =0930+493 05 06 10 45.2 419.1 -4.5 -69.0 113 618 17 40 31 17 42 30 SDSSJ0933+47 05 06 10 44.7 421.2 -4.5 -67.7 -7 618 No stop 17 45 30 --- 05 09 11 45.2 421.4 -4.4 -68.1 173 665 17 42 31 17 46 00 J0934+4908 05 09 41 45.7 419.4 -4.4 -69.4 23 665 17 46 00 17 48 00 =0930+493 05 11 41 46.0 419.6 -4.4 -69.7 120 696 17 46 01 17 48 00 SDSSJ0933+47 05 11 41 45.6 421.7 -4.4 -68.4 -7 696 No stop 17 51 00 --- 05 14 42 46.1 421.9 -4.3 -68.8 173 742 17 48 01 17 51 00 J0934+4908 05 14 42 46.5 419.8 -4.4 -70.1 -7 742 No stop 17 53 00 =0930+493 05 16 42 46.8 420.0 -4.3 -70.4 113 773 17 51 01 17 53 00 SDSSJ0933+47 05 16 42 46.4 422.1 -4.3 -69.0 -7 773 No stop 17 56 00 --- 05 19 43 46.9 422.4 -4.3 -69.4 173 819 17 53 01 17 56 30 J0934+4908 05 20 13 47.3 420.3 -4.3 -70.8 23 819 17 56 30 17 58 30 =0930+493 05 22 13 47.6 420.4 -4.2 -71.1 120 850 17 56 31 17 58 30 SDSSJ0933+47 05 22 13 47.3 422.6 -4.2 -69.7 -7 850 No stop 18 01 30 --- 05 25 14 47.7 422.8 -4.2 -70.0 173 897 17 58 31 18 01 30 J0934+4908 05 25 14 48.1 420.7 -4.2 -71.5 -7 897 No stop 18 03 30 =0930+493 05 27 14 48.4 420.8 -4.1 -71.7 113 927 18 01 31 18 03 30 SDSSJ0933+47 05 27 14 48.1 423.0 -4.1 -70.3 -7 927 No stop 18 06 30 --- 05 30 14 48.5 423.3 -4.1 -70.6 173 974 18 03 31 18 07 00 J0934+4908 05 30 45 49.0 421.1 -4.1 -72.2 23 974 18 07 00 18 09 00 =0930+493 05 32 45 49.3 421.2 -4.1 -72.5 120 1005 18 07 01 18 09 00 SDSSJ0933+47 05 32 45 48.9 423.5 -4.0 -70.9 -7 1005 No stop 18 12 00 --- 05 35 45 49.4 423.7 -4.0 -71.3 173 1051 18 09 01 18 12 00 J0934+4908 05 35 45 49.7 421.5 -4.0 -72.8 -7 1051 No stop 18 14 00 =0930+493 05 37 46 50.0 421.6 -4.0 -73.1 113 1082 18 12 01 18 14 00 SDSSJ0933+47 05 37 46 49.7 423.9 -4.0 -71.6 -7 1082 No stop 18 17 00 --- 05 40 46 50.2 424.1 -3.9 -71.9 173 1128 18 14 01 18 17 30 J0934+4908 05 41 16 50.6 421.9 -3.9 -73.6 23 1128 18 17 30 18 19 30 =0930+493 05 43 17 50.9 422.0 -3.9 -73.8 120 1159 18 17 31 Schedule for MEDICINA (Code Mc ) 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 19 30 SDSSJ0933+47 05 43 17 50.6 424.3 -3.9 -72.2 -7 1159 No stop 18 22 30 --- 05 46 17 51.1 424.6 -3.8 -72.6 173 1206 18 19 31 18 22 30 J0934+4908 05 46 17 51.4 422.2 -3.8 -74.2 -7 1206 No stop 18 24 30 =0930+493 05 48 17 51.7 422.4 -3.8 -74.5 113 1237 18 22 31 18 24 30 SDSSJ0933+47 05 48 17 51.4 424.7 -3.8 -72.8 -7 1237 No stop 18 27 30 --- 05 51 18 51.9 425.0 -3.7 -73.2 173 1283 18 24 31 18 28 00 J0934+4908 05 51 48 52.3 422.6 -3.7 -75.0 23 1283 18 28 00 18 30 00 =0930+493 05 53 48 52.6 422.8 -3.7 -75.2 120 1314 18 28 01 18 30 00 SDSSJ0933+47 05 53 48 52.3 425.2 -3.7 -73.5 -7 1314 No stop 18 33 00 --- 05 56 49 52.8 425.4 -3.6 -73.9 173 1360 18 30 01 18 33 00 J0934+4908 05 56 49 53.1 423.0 -3.7 -75.7 -7 1360 No stop 18 35 00 =0930+493 05 58 49 53.4 423.1 -3.6 -75.9 113 1391 18 33 01 18 35 00 SDSSJ0933+47 05 58 49 53.1 425.6 -3.6 -74.1 -7 1391 No stop 18 38 00 --- 06 01 50 53.6 425.8 -3.6 -74.5 173 1438 18 35 01 18 38 30 J0934+4908 06 02 20 53.9 423.3 -3.6 -76.4 23 1438 18 38 30 18 40 30 =0930+493 06 04 20 54.3 423.5 -3.5 -76.7 120 1469 18 38 31 18 40 30 SDSSJ0933+47 06 04 20 54.0 426.0 -3.5 -74.8 -7 1469 No stop 18 43 30 --- 06 07 21 54.5 426.2 -3.5 -75.2 173 1515 18 40 31 18 43 30 J0934+4908 06 07 21 54.7 423.7 -3.5 -77.1 -7 1515 No stop 18 45 30 =0930+493 06 09 21 55.1 423.8 -3.4 -77.4 113 1546 18 43 31 18 45 30 SDSSJ0933+47 06 09 21 54.9 426.4 -3.4 -75.4 -7 1546 No stop 18 48 30 --- 06 12 21 55.3 426.6 -3.4 -75.8 173 1592 18 45 31 18 49 00 J0934+4908 06 12 51 55.6 424.0 -3.4 -77.8 23 1592 18 49 00 18 51 00 =0930+493 06 14 52 55.9 424.1 -3.3 -78.1 120 1623 18 49 01 18 51 00 SDSSJ0933+47 06 14 52 55.8 426.8 -3.3 -76.1 -7 1623 No stop 18 54 00 --- 06 17 52 56.2 427.0 -3.3 -76.5 173 1669 18 51 01 18 54 00 J0934+4908 06 17 52 56.4 424.3 -3.3 -78.5 -7 1669 No stop 18 56 00 =0930+493 06 19 53 56.7 424.4 -3.3 -78.8 113 1700 18 54 01 18 57 00 J0927+3902 06 20 53 55.0 442.4 -3.1 -65.3 32 1700 18 57 00 19 02 00 =4C39.25 06 25 54 55.9 443.1 -3.0 -65.5 300 1778 18 57 01 Schedule for MEDICINA (Code Mc ) 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 03 00 J0934+4908 06 26 54 57.9 424.8 -3.1 -79.8 32 1778 19 03 00 19 08 00 =0930+493 06 31 55 58.7 425.1 -3.1 -80.5 300 1855 19 03 01 19 08 00 SDSSJ0933+47 06 31 55 58.6 427.9 -3.0 -78.3 -8 1855 No stop 19 11 00 --- 06 34 55 59.1 428.1 -3.0 -78.7 172 1901 19 08 01 19 11 30 J0934+4908 06 35 25 59.2 425.3 -3.0 -81.0 22 1901 19 11 30 19 13 30 =0930+493 06 37 25 59.6 425.4 -3.0 -81.3 120 1932 19 11 31 19 13 30 SDSSJ0933+47 06 37 25 59.5 428.3 -3.0 -79.0 -8 1932 No stop 19 16 30 --- 06 40 26 60.0 428.5 -2.9 -79.4 172 1979 19 13 31 19 16 30 J0934+4908 06 40 26 60.1 425.5 -2.9 -81.8 -8 1979 No stop 19 18 30 =0930+493 06 42 26 60.4 425.6 -2.9 -82.1 112 2010 19 16 31 19 18 30 SDSSJ0933+47 06 42 26 60.3 428.6 -2.9 -79.6 -8 2010 No stop 19 21 30 --- 06 45 27 60.8 428.8 -2.8 -80.0 172 2056 19 18 31 19 22 00 J0934+4908 06 45 57 61.0 425.8 -2.8 -82.6 22 2056 19 22 00 19 24 00 =0930+493 06 47 57 61.3 425.8 -2.8 -82.9 120 2087 19 22 01 19 24 00 SDSSJ0933+47 06 47 57 61.2 428.9 -2.8 -80.4 -8 2087 No stop 19 27 00 --- 06 50 58 61.7 429.1 -2.7 -80.8 172 2133 19 24 01 19 27 00 J0934+4908 06 50 58 61.8 426.0 -2.7 -83.4 -8 2133 No stop 19 29 00 =0930+493 06 52 58 62.1 426.0 -2.7 -83.7 112 2164 19 27 01 19 29 00 SDSSJ0933+47 06 52 58 62.1 429.2 -2.7 -81.0 -8 2164 No stop 19 32 00 --- 06 55 58 62.6 429.4 -2.6 -81.4 172 2211 19 29 01 19 32 30 J0934+4908 06 56 29 62.7 426.2 -2.7 -84.2 22 2211 19 32 30 19 34 30 =0930+493 06 58 29 63.0 426.2 -2.6 -84.5 120 2241 19 32 31 19 34 30 SDSSJ0933+47 06 58 29 63.0 429.5 -2.6 -81.8 -8 2241 No stop 19 37 30 --- 07 01 29 63.5 429.7 -2.6 -82.2 172 2288 19 34 31 19 37 30 J0934+4908 07 01 29 63.5 426.3 -2.6 -85.0 -8 2288 No stop 19 39 30 =0930+493 07 03 30 63.8 426.4 -2.5 -85.3 112 2319 19 37 31 19 39 30 SDSSJ0933+47 07 03 30 63.8 429.8 -2.5 -82.5 -8 2319 No stop 19 42 30 --- 07 06 30 64.3 429.9 -2.5 -82.9 172 2365 19 39 31 19 43 00 J0934+4908 07 07 00 64.4 426.5 -2.5 -85.9 21 2365 19 43 00 19 45 00 =0930+493 07 09 01 64.7 426.6 -2.4 -86.2 120 2396 19 43 01 Schedule for MEDICINA (Code Mc ) 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 45 00 SDSSJ0933+47 07 09 01 64.7 430.1 -2.4 -83.3 -9 2396 No stop 19 48 00 --- 07 12 01 65.2 430.2 -2.4 -83.7 171 2442 19 45 01 19 48 00 J0934+4908 07 12 01 65.2 426.6 -2.4 -86.7 -9 2442 No stop 19 50 00 =0930+493 07 14 01 65.5 426.7 -2.4 -87.1 111 2473 19 48 01 19 50 00 SDSSJ0933+47 07 14 01 65.6 430.3 -2.3 -84.0 -9 2473 No stop 19 53 00 --- 07 17 02 66.1 430.4 -2.3 -84.4 171 2520 19 50 01 19 53 30 J0934+4908 07 17 32 66.1 426.7 -2.3 -87.7 21 2520 19 53 30 19 55 30 =0930+493 07 19 32 66.4 426.8 -2.3 -88.0 120 2551 19 53 31 19 55 30 SDSSJ0933+47 07 19 32 66.5 430.5 -2.3 -84.8 -9 2551 No stop 19 58 30 --- 07 22 33 67.0 430.6 -2.2 -85.2 171 2597 19 55 31 19 58 30 J0934+4908 07 22 33 66.9 426.8 -2.2 -88.6 -9 2597 No stop 20 00 30 =0930+493 07 24 33 67.3 426.8 -2.2 -88.9 111 2628 19 58 31 20 00 30 SDSSJ0933+47 07 24 33 67.3 430.7 -2.2 -85.5 -9 2628 No stop 20 03 30 --- 07 27 34 67.9 430.8 -2.1 -86.0 171 2674 20 00 31 20 04 00 J0934+4908 07 28 04 67.8 426.8 -2.1 -89.6 21 2674 20 04 00 20 06 00 =0930+493 07 30 04 68.2 426.8 -2.1 -90.0 120 2705 20 04 01 20 06 00 SDSSJ0933+47 07 30 04 68.3 430.9 -2.1 -86.4 -9 2705 No stop 20 09 00 --- 07 33 05 68.8 430.9 -2.0 -86.9 171 2752 20 06 01 20 09 00 J0934+4908 07 33 05 68.7 426.8 -2.0 -90.5 -9 2752 No stop 20 11 00 =0930+493 07 35 05 69.0 426.8 -2.0 -90.9 111 2782 20 09 01 20 11 00 SDSSJ0933+47 07 35 05 69.1 431.0 -2.0 -87.2 -9 2782 No stop 20 14 00 --- 07 38 05 69.6 431.1 -1.9 -87.7 171 2829 20 11 01 20 14 30 J0934+4908 07 38 35 69.6 426.8 -2.0 -91.6 20 2829 20 14 30 20 16 30 =0930+493 07 40 36 69.9 426.8 -1.9 -92.0 120 2860 20 14 31 20 16 30 SDSSJ0933+47 07 40 36 70.0 431.1 -1.9 -88.1 -10 2860 No stop 20 19 30 --- 07 43 36 70.6 431.1 -1.9 -88.6 170 2906 20 16 31 20 19 30 J0934+4908 07 43 36 70.4 426.7 -1.9 -92.6 -10 2906 No stop 20 21 30 =0930+493 07 45 37 70.7 426.7 -1.8 -93.1 110 2937 20 19 31 20 21 30 SDSSJ0933+47 07 45 37 70.9 431.2 -1.8 -89.0 -10 2937 No stop 20 24 30 --- 07 48 37 71.4 431.2 -1.8 -89.5 170 2983 20 21 31 Schedule for MEDICINA (Code Mc ) 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 25 00 J0934+4908 07 49 07 71.3 426.5 -1.8 -93.8 20 2983 20 25 00 20 27 00 =0930+493 07 51 08 71.6 426.5 -1.7 -94.3 120 3014 20 25 01 20 27 00 SDSSJ0933+47 07 51 08 71.8 431.2 -1.7 -90.0 -10 3014 No stop 20 30 00 --- 07 54 08 72.3 431.2 -1.7 -90.5 170 3061 20 27 01 20 30 00 J0934+4908 07 54 08 72.1 426.3 -1.7 -95.0 -10 3061 No stop 20 32 00 =0930+493 07 56 08 72.4 426.3 -1.7 -95.4 110 3092 20 30 01 20 32 00 SDSSJ0933+47 07 56 08 72.7 431.2 -1.6 -90.9 -10 3092 No stop 20 35 00 --- 07 59 09 73.2 431.1 -1.6 -91.5 170 3138 20 32 01 20 35 30 J0934+4908 07 59 39 73.0 426.1 -1.6 -96.3 19 3138 20 35 30 20 37 30 =0930+493 08 01 39 73.3 425.9 -1.6 -96.8 120 3169 20 35 31 20 37 30 SDSSJ0933+47 08 01 39 73.6 431.1 -1.6 -92.0 -11 3169 No stop 20 40 30 --- 08 04 40 74.1 431.0 -1.5 -92.6 169 3215 20 37 31 20 40 30 J0934+4908 08 04 40 73.8 425.7 -1.5 -97.6 -11 3215 No stop 20 42 30 =0930+493 08 06 40 74.1 425.5 -1.5 -98.1 109 3246 20 40 31 20 42 30 SDSSJ0933+47 08 06 40 74.4 430.9 -1.5 -93.1 -11 3246 No stop 20 45 30 --- 08 09 41 75.0 430.8 -1.4 -93.7 169 3293 20 42 31 20 46 00 J0934+4908 08 10 11 74.7 425.2 -1.4 -99.1 19 3293 20 46 00 20 48 00 =0930+493 08 12 11 75.0 425.0 -1.4 -99.7 120 3324 20 46 01 20 48 00 SDSSJ0933+47 08 12 11 75.4 430.7 -1.4 -94.3 -12 3324 No stop 20 51 00 --- 08 15 11 75.9 430.6 -1.3 -95.0 168 3370 20 48 01 20 51 00 J0934+4908 08 15 11 75.5 424.7 -1.3 -100.5 -12 3370 No stop 20 53 00 =0930+493 08 17 12 75.8 424.4 -1.3 -101.2 108 3401 20 51 01 20 54 00 J0927+3902 08 18 12 75.8 467.0 -1.2 -61.2 -1 3401 20 54 00 21 00 00 =4C39.25 08 24 13 76.8 469.4 -1.1 -59.8 359 3494 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: 5 Station: MEDICINA 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= 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 8080.00 Net SB= L L U U L L U U L L U U L L U U IF SB = U U U U U U U U U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP RCP LCP BBC = 9 1 9 1 10 2 10 2 11 3 11 3 12 4 12 4 BBC SB= L L U U L L U U L L U U L L U U IF = C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 The following frequency sets based on these setups were used. Frequency Set: 3 Setup file default. Used with PCAL = off LO sum= 8319.49 8319.49 8319.49 8319.49 8383.49 8383.49 8383.49 8383.49 8447.49 8447.49 8447.49 8447.49 8511.49 8511.49 8511.49 8511.49 BBC fr= 239.49 239.49 239.49 239.49 303.49 303.49 303.49 303.49 367.49 367.49 367.49 367.49 431.49 431.49 431.49 431.49 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: 3 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) * 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