COVER INFORMATION Station: MEDICINA (Code Mc ) Experiment: Confirmation of close dual quasars at z=0.6-2.5 Exp. Code: ES103H 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 ---------------------------------------------------------------------------------------- --- Fri 24 Feb 2023 Day 55 --- 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: 230.49 230.49 230.49 230.49 294.49 294.49 294.49 294.49 358.49 358.49 358.49 358.49 422.49 422.49 422.49 422.49 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 16 30 00 J0927+3902 03 33 46 27.0 420.7 -5.9 -53.1 0 0 16 30 00 16 35 00 =4C39.25 03 38 47 27.7 421.4 -5.8 -53.6 300 77 16 30 01 16 36 00 J0934+4908 03 39 47 32.5 411.0 -5.9 -57.7 42 77 16 36 00 16 41 00 =0930+493 03 44 48 33.2 411.5 -5.9 -58.4 300 155 16 36 01 16 41 00 SDSSJ0933+47 03 44 48 32.6 413.1 -5.8 -57.7 -6 155 No stop 16 44 00 --- 03 47 48 33.0 413.5 -5.8 -58.1 174 201 16 41 01 16 44 30 J0934+4908 03 48 18 33.7 411.9 -5.8 -58.8 24 201 16 44 30 16 46 30 =0930+493 03 50 19 34.0 412.1 -5.8 -59.1 120 232 16 44 31 16 46 30 SDSSJ0933+47 03 50 19 33.3 413.7 -5.7 -58.4 -6 232 No stop 16 49 30 --- 03 53 19 33.8 414.0 -5.7 -58.8 174 278 16 46 31 16 49 30 J0934+4908 03 53 19 34.4 412.4 -5.7 -59.5 -6 278 No stop 16 51 30 =0930+493 03 55 19 34.7 412.6 -5.7 -59.8 114 309 16 49 31 16 51 30 SDSSJ0933+47 03 55 19 34.1 414.2 -5.7 -59.0 -6 309 No stop 16 54 30 --- 03 58 20 34.5 414.6 -5.6 -59.4 174 356 16 51 31 16 55 00 J0934+4908 03 58 50 35.2 413.0 -5.6 -60.2 24 356 16 55 00 16 57 00 =0930+493 04 00 50 35.5 413.2 -5.6 -60.5 120 386 16 55 01 16 57 00 SDSSJ0933+47 04 00 50 34.9 414.8 -5.6 -59.7 -6 386 No stop 17 00 00 --- 04 03 51 35.3 415.1 -5.5 -60.1 174 433 16 57 01 17 00 00 J0934+4908 04 03 51 35.9 413.5 -5.5 -60.9 -6 433 No stop 17 02 00 =0930+493 04 05 51 36.2 413.6 -5.5 -61.2 114 464 17 00 01 17 02 00 SDSSJ0933+47 04 05 51 35.6 415.3 -5.5 -60.3 -6 464 No stop 17 05 00 --- 04 08 52 36.0 415.6 -5.4 -60.7 174 510 17 02 01 17 05 30 J0934+4908 04 09 22 36.7 414.0 -5.4 -61.6 24 510 17 05 30 17 07 30 =0930+493 04 11 22 37.0 414.2 -5.4 -61.9 120 541 17 05 31 17 07 30 SDSSJ0933+47 04 11 22 36.4 415.9 -5.4 -61.0 -6 541 No stop 17 10 30 --- 04 14 22 36.9 416.2 -5.3 -61.4 174 587 17 07 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 ---------------------------------------------------------------------------------------- --- Fri 24 Feb 2023 Day 55 --- 17 10 30 J0934+4908 04 14 22 37.4 414.5 -5.4 -62.3 -6 587 No stop 17 12 30 =0930+493 04 16 23 37.7 414.7 -5.3 -62.5 114 618 17 10 31 17 12 30 SDSSJ0933+47 04 16 23 37.2 416.4 -5.3 -61.6 -6 618 No stop 17 15 30 --- 04 19 23 37.6 416.7 -5.3 -62.0 174 665 17 12 31 17 16 00 J0934+4908 04 19 53 38.2 415.0 -5.3 -63.0 24 665 17 16 00 17 18 00 =0930+493 04 21 54 38.5 415.2 -5.2 -63.2 120 696 17 16 01 17 18 00 SDSSJ0933+47 04 21 54 38.0 417.0 -5.2 -62.3 -6 696 No stop 17 21 00 --- 04 24 54 38.4 417.3 -5.2 -62.7 174 742 17 18 01 17 21 00 J0934+4908 04 24 54 39.0 415.5 -5.2 -63.6 -6 742 No stop 17 23 00 =0930+493 04 26 55 39.3 415.7 -5.1 -63.9 114 773 17 21 01 17 23 00 SDSSJ0933+47 04 26 55 38.7 417.5 -5.1 -62.9 -6 773 No stop 17 26 00 --- 04 29 55 39.2 417.8 -5.1 -63.3 174 819 17 23 01 17 26 30 J0934+4908 04 30 25 39.8 416.0 -5.1 -64.4 24 819 17 26 30 17 28 30 =0930+493 04 32 25 40.1 416.2 -5.1 -64.6 120 850 17 26 31 17 28 30 SDSSJ0933+47 04 32 25 39.6 418.0 -5.0 -63.6 -6 850 No stop 17 31 30 --- 04 35 26 40.0 418.3 -5.0 -64.0 174 897 17 28 31 17 31 30 J0934+4908 04 35 26 40.5 416.4 -5.0 -65.0 -6 897 No stop 17 33 30 =0930+493 04 37 26 40.8 416.6 -5.0 -65.3 114 927 17 31 31 17 33 30 SDSSJ0933+47 04 37 26 40.3 418.5 -5.0 -64.2 -6 927 No stop 17 36 30 --- 04 40 27 40.8 418.8 -4.9 -64.6 174 974 17 33 31 17 37 00 J0934+4908 04 40 57 41.3 416.9 -4.9 -65.7 24 974 17 37 00 17 39 00 =0930+493 04 42 57 41.6 417.1 -4.9 -66.0 120 1005 17 37 01 17 39 00 SDSSJ0933+47 04 42 57 41.2 419.0 -4.9 -64.9 -6 1005 No stop 17 42 00 --- 04 45 58 41.6 419.3 -4.8 -65.3 174 1051 17 39 01 17 42 00 J0934+4908 04 45 58 42.1 417.4 -4.8 -66.4 -6 1051 No stop 17 44 00 =0930+493 04 47 58 42.4 417.6 -4.8 -66.6 114 1082 17 42 01 17 44 00 SDSSJ0933+47 04 47 58 41.9 419.5 -4.8 -65.5 -6 1082 No stop 17 47 00 --- 04 50 58 42.4 419.8 -4.7 -65.9 174 1128 17 44 01 17 47 30 J0934+4908 04 51 29 42.9 417.9 -4.7 -67.1 24 1128 17 47 30 17 49 30 =0930+493 04 53 29 43.2 418.0 -4.7 -67.3 120 1159 17 47 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 ---------------------------------------------------------------------------------------- --- Fri 24 Feb 2023 Day 55 --- 17 49 30 SDSSJ0933+47 04 53 29 42.8 420.0 -4.7 -66.2 -7 1159 No stop 17 52 30 --- 04 56 29 43.2 420.3 -4.6 -66.6 173 1206 17 49 31 17 52 30 J0934+4908 04 56 29 43.7 418.3 -4.7 -67.7 -7 1206 No stop 17 54 30 =0930+493 04 58 30 44.0 418.5 -4.6 -68.0 113 1237 17 52 31 17 54 30 SDSSJ0933+47 04 58 30 43.6 420.5 -4.6 -66.8 -7 1237 No stop 17 57 30 --- 05 01 30 44.0 420.7 -4.6 -67.2 173 1283 17 54 31 17 58 00 J0934+4908 05 02 00 44.5 418.8 -4.6 -68.4 23 1283 17 58 00 18 00 00 =0930+493 05 04 01 44.8 418.9 -4.5 -68.7 120 1314 17 58 01 18 00 00 SDSSJ0933+47 05 04 01 44.4 421.0 -4.5 -67.5 -7 1314 No stop 18 03 00 --- 05 07 01 44.9 421.2 -4.5 -67.8 173 1360 18 00 01 18 03 00 J0934+4908 05 07 01 45.3 419.2 -4.5 -69.1 -7 1360 No stop 18 05 00 =0930+493 05 09 01 45.6 419.4 -4.4 -69.4 113 1391 18 03 01 18 05 00 SDSSJ0933+47 05 09 01 45.2 421.4 -4.4 -68.1 -7 1391 No stop 18 08 00 --- 05 12 02 45.7 421.7 -4.4 -68.4 173 1438 18 05 01 18 08 30 J0934+4908 05 12 32 46.1 419.7 -4.4 -69.8 23 1438 18 08 30 18 10 30 =0930+493 05 14 32 46.4 419.8 -4.4 -70.1 120 1469 18 08 31 18 10 30 SDSSJ0933+47 05 14 32 46.1 421.9 -4.3 -68.7 -7 1469 No stop 18 13 30 --- 05 17 33 46.5 422.2 -4.3 -69.1 173 1515 18 10 31 18 13 30 J0934+4908 05 17 33 46.9 420.1 -4.3 -70.5 -7 1515 No stop 18 15 30 =0930+493 05 19 33 47.2 420.2 -4.3 -70.7 113 1546 18 13 31 18 15 30 SDSSJ0933+47 05 19 33 46.8 422.3 -4.3 -69.3 -7 1546 No stop 18 18 30 --- 05 22 34 47.3 422.6 -4.2 -69.7 173 1592 18 15 31 18 19 00 J0934+4908 05 23 04 47.8 420.5 -4.2 -71.2 23 1592 18 19 00 18 21 00 =0930+493 05 25 04 48.1 420.7 -4.2 -71.4 120 1623 18 19 01 18 21 00 SDSSJ0933+47 05 25 04 47.7 422.8 -4.2 -70.0 -7 1623 No stop 18 24 00 --- 05 28 05 48.2 423.1 -4.1 -70.4 173 1669 18 21 01 18 24 00 J0934+4908 05 28 05 48.5 420.9 -4.1 -71.8 -7 1669 No stop 18 26 00 =0930+493 05 30 05 48.8 421.0 -4.1 -72.1 113 1700 18 24 01 18 27 00 J0927+3902 05 31 05 46.3 435.7 -4.0 -62.7 37 1700 18 27 00 18 32 00 =4C39.25 05 36 06 47.2 436.4 -3.9 -63.0 300 1778 18 27 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 ---------------------------------------------------------------------------------------- --- Fri 24 Feb 2023 Day 55 --- 18 33 00 J0934+4908 05 37 06 49.9 421.6 -4.0 -73.0 36 1778 18 33 00 18 38 00 =0930+493 05 42 07 50.7 421.9 -3.9 -73.7 300 1855 18 33 01 18 38 00 SDSSJ0933+47 05 42 07 50.4 424.2 -3.9 -72.1 -7 1855 No stop 18 41 00 --- 05 45 07 50.9 424.5 -3.8 -72.4 173 1901 18 38 01 18 41 30 J0934+4908 05 45 37 51.3 422.2 -3.8 -74.2 23 1901 18 41 30 18 43 30 =0930+493 05 47 38 51.6 422.3 -3.8 -74.4 120 1932 18 41 31 18 43 30 SDSSJ0933+47 05 47 38 51.3 424.7 -3.8 -72.8 -7 1932 No stop 18 46 30 --- 05 50 38 51.8 424.9 -3.7 -73.1 173 1979 18 43 31 18 46 30 J0934+4908 05 50 38 52.1 422.5 -3.8 -74.8 -7 1979 No stop 18 48 30 =0930+493 05 52 39 52.4 422.7 -3.7 -75.1 113 2010 18 46 31 18 48 30 SDSSJ0933+47 05 52 39 52.1 425.1 -3.7 -73.4 -7 2010 No stop 18 51 30 --- 05 55 39 52.6 425.3 -3.7 -73.7 173 2056 18 48 31 18 52 00 J0934+4908 05 56 09 53.0 422.9 -3.7 -75.6 23 2056 18 52 00 18 54 00 =0930+493 05 58 09 53.3 423.1 -3.6 -75.8 120 2087 18 52 01 18 54 00 SDSSJ0933+47 05 58 09 53.0 425.5 -3.6 -74.0 -7 2087 No stop 18 57 00 --- 06 01 10 53.5 425.7 -3.6 -74.4 173 2133 18 54 01 18 57 00 J0934+4908 06 01 10 53.7 423.3 -3.6 -76.2 -7 2133 No stop 18 59 00 =0930+493 06 03 10 54.1 423.4 -3.5 -76.5 113 2164 18 57 01 18 59 00 SDSSJ0933+47 06 03 10 53.8 425.9 -3.5 -74.7 -7 2164 No stop 19 02 00 --- 06 06 11 54.3 426.1 -3.5 -75.0 173 2211 18 59 01 19 02 30 J0934+4908 06 06 41 54.6 423.6 -3.5 -77.0 23 2211 19 02 30 19 04 30 =0930+493 06 08 41 54.9 423.7 -3.5 -77.3 120 2241 19 02 31 19 04 30 SDSSJ0933+47 06 08 41 54.7 426.3 -3.4 -75.3 -7 2241 No stop 19 07 30 --- 06 11 42 55.2 426.5 -3.4 -75.7 173 2288 19 04 31 19 07 30 J0934+4908 06 11 42 55.4 423.9 -3.4 -77.7 -7 2288 No stop 19 09 30 =0930+493 06 13 42 55.7 424.1 -3.4 -78.0 113 2319 19 07 31 19 09 30 SDSSJ0933+47 06 13 42 55.6 426.7 -3.4 -76.0 -7 2319 No stop 19 12 30 --- 06 16 43 56.1 426.9 -3.3 -76.3 173 2365 19 09 31 19 13 00 J0934+4908 06 17 13 56.3 424.3 -3.3 -78.4 23 2365 19 13 00 19 15 00 =0930+493 06 19 13 56.6 424.4 -3.3 -78.7 120 2396 19 13 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 ---------------------------------------------------------------------------------------- --- Fri 24 Feb 2023 Day 55 --- 19 15 00 SDSSJ0933+47 06 19 13 56.5 427.1 -3.3 -76.7 -8 2396 No stop 19 18 00 --- 06 22 13 57.0 427.3 -3.2 -77.0 172 2442 19 15 01 19 18 00 J0934+4908 06 22 13 57.1 424.6 -3.2 -79.1 -8 2442 No stop 19 20 00 =0930+493 06 24 14 57.4 424.7 -3.2 -79.4 112 2473 19 18 01 19 20 00 SDSSJ0933+47 06 24 14 57.3 427.4 -3.2 -77.3 -8 2473 No stop 19 23 00 --- 06 27 14 57.8 427.6 -3.1 -77.7 172 2520 19 20 01 19 23 30 J0934+4908 06 27 44 58.0 424.9 -3.1 -79.9 22 2520 19 23 30 19 25 30 =0930+493 06 29 45 58.3 425.0 -3.1 -80.2 120 2551 19 23 31 19 25 30 SDSSJ0933+47 06 29 45 58.2 427.8 -3.1 -78.0 -8 2551 No stop 19 28 30 --- 06 32 45 58.7 428.0 -3.0 -78.4 172 2597 19 25 31 19 28 30 J0934+4908 06 32 45 58.8 425.1 -3.1 -80.7 -8 2597 No stop 19 30 30 =0930+493 06 34 45 59.1 425.2 -3.0 -80.9 112 2628 19 28 31 19 30 30 SDSSJ0933+47 06 34 45 59.0 428.1 -3.0 -78.6 -8 2628 No stop 19 33 30 --- 06 37 46 59.5 428.3 -3.0 -79.0 172 2674 19 30 31 19 34 00 J0934+4908 06 38 16 59.7 425.4 -3.0 -81.5 22 2674 19 34 00 19 36 00 =0930+493 06 40 16 60.0 425.5 -2.9 -81.8 120 2705 19 34 01 19 36 00 SDSSJ0933+47 06 40 16 59.9 428.5 -2.9 -79.3 -8 2705 No stop 19 39 00 --- 06 43 17 60.4 428.7 -2.9 -79.7 172 2752 19 36 01 19 39 00 J0934+4908 06 43 17 60.5 425.6 -2.9 -82.2 -8 2752 No stop 19 41 00 =0930+493 06 45 17 60.8 425.7 -2.8 -82.5 112 2782 19 39 01 19 41 00 SDSSJ0933+47 06 45 17 60.8 428.8 -2.8 -80.0 -8 2782 No stop 19 44 00 --- 06 48 18 61.3 429.0 -2.8 -80.4 172 2829 19 41 01 19 44 30 J0934+4908 06 48 48 61.4 425.9 -2.8 -83.0 22 2829 19 44 30 19 46 30 =0930+493 06 50 48 61.7 426.0 -2.8 -83.3 120 2860 19 44 31 19 46 30 SDSSJ0933+47 06 50 48 61.7 429.1 -2.7 -80.7 -8 2860 No stop 19 49 30 --- 06 53 49 62.2 429.3 -2.7 -81.1 172 2906 19 46 31 19 49 30 J0934+4908 06 53 49 62.2 426.1 -2.7 -83.8 -8 2906 No stop 19 51 30 =0930+493 06 55 49 62.6 426.2 -2.7 -84.1 112 2937 19 49 31 19 51 30 SDSSJ0933+47 06 55 49 62.5 429.4 -2.7 -81.4 -8 2937 No stop 19 54 30 --- 06 58 49 63.0 429.5 -2.6 -81.8 172 2983 19 51 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 ---------------------------------------------------------------------------------------- --- Fri 24 Feb 2023 Day 55 --- 19 55 00 J0934+4908 06 59 19 63.1 426.3 -2.6 -84.7 22 2983 19 55 00 19 57 00 =0930+493 07 01 20 63.5 426.3 -2.6 -85.0 120 3014 19 55 01 19 57 00 SDSSJ0933+47 07 01 20 63.5 429.7 -2.6 -82.2 -8 3014 No stop 20 00 00 --- 07 04 20 64.0 429.8 -2.5 -82.6 172 3061 19 57 01 20 00 00 J0934+4908 07 04 20 64.0 426.4 -2.5 -85.5 -8 3061 No stop 20 02 00 =0930+493 07 06 21 64.3 426.5 -2.5 -85.8 112 3092 20 00 01 20 02 00 SDSSJ0933+47 07 06 21 64.3 429.9 -2.5 -82.9 -9 3092 No stop 20 05 00 --- 07 09 21 64.8 430.1 -2.4 -83.3 171 3138 20 02 01 20 05 30 J0934+4908 07 09 51 64.9 426.6 -2.4 -86.4 21 3138 20 05 30 20 07 30 =0930+493 07 11 52 65.2 426.6 -2.4 -86.7 120 3169 20 05 31 20 07 30 SDSSJ0933+47 07 11 52 65.2 430.2 -2.4 -83.7 -9 3169 No stop 20 10 30 --- 07 14 52 65.7 430.3 -2.3 -84.1 171 3215 20 07 31 20 10 30 J0934+4908 07 14 52 65.7 426.7 -2.3 -87.2 -9 3215 No stop 20 12 30 =0930+493 07 16 52 66.0 426.7 -2.3 -87.6 111 3246 20 10 31 20 12 30 SDSSJ0933+47 07 16 52 66.1 430.4 -2.3 -84.4 -9 3246 No stop 20 15 30 --- 07 19 53 66.6 430.5 -2.3 -84.8 171 3293 20 12 31 20 16 00 J0934+4908 07 20 23 66.6 426.8 -2.3 -88.2 21 3293 20 16 00 20 18 00 =0930+493 07 22 23 66.9 426.8 -2.2 -88.5 120 3324 20 16 01 20 18 00 SDSSJ0933+47 07 22 23 67.0 430.6 -2.2 -85.2 -9 3324 No stop 20 21 00 --- 07 25 24 67.5 430.7 -2.2 -85.7 171 3370 20 18 01 20 21 00 J0934+4908 07 25 24 67.4 426.8 -2.2 -89.1 -9 3370 No stop 20 23 00 =0930+493 07 27 24 67.7 426.8 -2.1 -89.5 111 3401 20 21 01 20 24 00 J0927+3902 07 28 24 67.0 453.5 -2.0 -66.2 21 3401 20 24 00 20 30 00 =4C39.25 07 34 25 68.1 454.8 -1.9 -66.0 360 3494 20 24 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess123.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: 6 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= 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 4600.00 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 = 1 9 1 9 2 10 2 10 3 11 3 11 4 12 4 12 BBC SB= L L U U L L U U L L U U L L U U IF = A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 A1 C1 The following frequency sets based on these setups were used. Frequency Set: 3 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= 230.49 230.49 230.49 230.49 294.49 294.49 294.49 294.49 358.49 358.49 358.49 358.49 422.49 422.49 422.49 422.49 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 54.048427 0.00 47 52 35.27416 * 47 39 15.91000 47 33 07.69278 0.00 From catalog imbedded in main SCHED input file. 4C39.25 09 23 55.319216 * 09 27 03.013937 09 28 30.893641 0.31 * J0927+3902 39 15 23.56644 * 39 02 20.85185 38 56 19.73393 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 49.729181 0.19 * J0934+4908 49 21 43.43738 * 49 08 21.72954 49 02 12.53422 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.C2048 1 2 3 4 5 6 7 8 9 2.000 62.667 J0927+3902 sess123.C2048 1 2 3 4 5 6 7 8 9 0.267 8.810 J0934+4908 sess123.C2048 1 2 3 4 5 6 7 8 9 1.500 43.761 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+47 140.0 J0927+3902 147.3 J0934+4908 138.7 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