COVER INFORMATION Station: KUNMING (Code Km ) Experiment: Revealing the radio structure of TDE AT2019dsg Exp. Code: EM140B Schedule Version: 3.00 Processed by SCHED version: 11.50 Development version 11.5. Started Apr. 2 PI: Jun Yang, contact person Address: Onsala Space Observatory SE-439 92 Onsala Sweden Phone: +46 31 7725531 EMAIL: jun.yang@chalmers.se Fax: +46 31 7725590 Phone during observation: +46 31 7725531 Observing mode: 2048-16-2 Notes: PI: Prashanth Mohan, Shanghai Astronomical Observatory 2Gbps, 16x32MHz, dual-pol, 2-bit, C-band/5 GHz Kunming added: enough pack space left after vex-files for scheduled observations DBBC2 stations: DDC V107. Schedule for KUNMING (Code Km ) Page 2 Revealing the radio structure of TDE AT2019dsg 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 28 Feb 2020 Day 59 --- ---------- Fringe finder ---------- 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: 630.49 630.49 630.49 630.49 694.49 694.49 694.49 694.49 758.49 758.49 758.49 758.49 822.49 822.49 822.49 822.49 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 05 30 00 3C345 22 51 15 14.3 -52.5 6.1 69.2 0 0 05 30 00 05 35 00 --- 22 56 16 13.4 -52.1 6.2 68.5 300 77 05 30 01 ---------- 50s gap for Tsys ---------- 05 40 50 J2052+1619 23 02 06 58.8 260.2 2.1 68.6 34 77 05 40 50 05 41 20 --- 23 02 37 58.7 260.3 2.1 68.6 30 85 05 40 51 05 41 50 J2058+1512 23 03 07 59.5 257.3 2.1 66.4 23 85 05 41 50 05 44 40 --- 23 05 57 58.9 257.8 2.1 66.7 170 128 05 41 51 05 45 10 J2052+1619 23 06 27 57.9 261.0 2.2 68.9 23 128 05 45 10 05 45 40 --- 23 06 57 57.7 261.0 2.2 68.9 30 136 05 45 11 05 46 10 AT2019DSG 23 07 27 57.8 256.7 2.2 65.5 22 136 05 46 10 05 49 00 --- 23 10 18 57.2 257.2 2.2 65.8 170 179 05 46 11 05 49 30 J2052+1619 23 10 48 56.9 261.6 2.3 69.2 22 179 05 49 30 05 50 00 --- 23 11 18 56.8 261.7 2.3 69.2 30 187 05 49 31 05 50 30 AT2019DSG 23 11 48 56.8 257.5 2.2 65.9 22 187 05 50 30 05 53 20 --- 23 14 39 56.2 258.0 2.3 66.1 170 231 05 50 31 05 53 50 J2052+1619 23 15 09 55.9 262.3 2.4 69.4 22 231 05 53 50 05 54 20 --- 23 15 39 55.8 262.4 2.4 69.4 30 238 05 53 51 05 54 50 AT2019DSG 23 16 09 55.9 258.3 2.3 66.3 22 238 05 54 50 05 57 40 --- 23 18 59 55.2 258.7 2.4 66.5 170 282 05 54 51 05 58 10 J2052+1619 23 19 29 54.9 263.0 2.4 69.6 22 282 05 58 10 05 58 40 --- 23 19 59 54.8 263.0 2.4 69.6 30 290 05 58 11 05 59 10 AT2019DSG 23 20 29 54.9 259.0 2.4 66.6 22 290 05 59 10 06 02 00 --- 23 23 20 54.3 259.5 2.4 66.8 170 333 05 59 11 06 02 30 J2052+1619 23 23 50 54.0 263.6 2.5 69.8 22 333 06 02 30 06 03 00 --- 23 24 20 53.8 263.6 2.5 69.8 30 341 06 02 31 Schedule for KUNMING (Code Km ) Page 3 Revealing the radio structure of TDE AT2019dsg 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 28 Feb 2020 Day 59 --- 06 03 30 AT2019DSG 23 24 50 53.9 259.7 2.4 66.9 22 341 06 03 30 06 06 20 --- 23 27 41 53.3 260.2 2.5 67.1 170 385 06 03 31 ---------- 50s gap for Tsys ---------- 06 07 10 J2052+1619 23 28 31 52.9 264.2 2.6 70.0 42 385 06 07 10 06 07 40 --- 23 29 01 52.8 264.3 2.6 70.0 30 392 06 07 11 06 08 10 J2058+1512 23 29 31 53.6 261.7 2.5 68.4 23 392 06 08 10 06 11 00 --- 23 32 21 53.0 262.2 2.5 68.5 170 436 06 08 11 06 11 30 J2052+1619 23 32 52 51.9 264.8 2.7 70.2 23 436 06 11 30 06 12 00 --- 23 33 22 51.8 264.9 2.7 70.2 30 444 06 11 31 06 12 30 AT2019DSG 23 33 52 51.9 261.1 2.6 67.5 22 444 06 12 30 06 15 20 --- 23 36 42 51.3 261.5 2.6 67.6 170 487 06 12 31 06 15 50 J2052+1619 23 37 12 50.9 265.4 2.7 70.3 22 487 06 15 50 06 16 20 --- 23 37 42 50.8 265.4 2.7 70.3 30 495 06 15 51 06 16 50 AT2019DSG 23 38 12 50.9 261.8 2.7 67.7 22 495 06 16 50 06 19 40 --- 23 41 03 50.3 262.2 2.7 67.9 170 538 06 16 51 06 20 10 J2052+1619 23 41 33 50.0 265.9 2.8 70.4 22 538 06 20 10 06 20 40 --- 23 42 03 49.8 266.0 2.8 70.4 30 546 06 20 11 06 21 10 AT2019DSG 23 42 33 50.0 262.4 2.7 67.9 22 546 06 21 10 06 24 00 --- 23 45 24 49.3 262.8 2.8 68.1 170 590 06 21 11 06 24 30 J2052+1619 23 45 54 49.0 266.5 2.9 70.5 22 590 06 24 30 06 25 00 --- 23 46 24 48.9 266.5 2.9 70.5 30 597 06 24 31 06 25 30 AT2019DSG 23 46 54 49.0 263.0 2.8 68.1 22 597 06 25 30 06 28 20 --- 23 49 44 48.3 263.4 2.9 68.2 170 641 06 25 31 06 28 50 J2052+1619 23 50 14 48.0 267.0 2.9 70.6 22 641 06 28 50 06 29 20 --- 23 50 44 47.9 267.0 3.0 70.6 30 649 06 28 51 06 29 50 AT2019DSG 23 51 15 48.0 263.6 2.9 68.3 22 649 06 29 50 06 32 40 --- 23 54 05 47.4 264.0 2.9 68.4 170 692 06 29 51 ---------- 50s gap for Tsys ---------- 06 33 30 J2052+1619 23 54 55 46.9 267.5 3.0 70.7 43 692 06 33 30 06 34 00 --- 23 55 25 46.8 267.6 3.0 70.7 30 700 06 33 31 Schedule for KUNMING (Code Km ) Page 4 Revealing the radio structure of TDE AT2019dsg 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 28 Feb 2020 Day 59 --- 06 34 30 J2058+1512 23 55 55 47.7 265.4 2.9 69.4 24 700 06 34 30 06 37 20 --- 23 58 46 47.1 265.7 3.0 69.5 170 744 06 34 31 06 37 50 J2052+1619 23 59 16 46.0 268.0 3.1 70.7 24 744 06 37 50 06 38 20 --- 23 59 46 45.8 268.1 3.1 70.7 30 751 06 37 51 06 38 50 AT2019DSG 00 00 16 46.0 264.8 3.0 68.6 23 751 06 38 50 06 41 40 --- 00 03 06 45.3 265.1 3.1 68.7 170 795 06 38 51 06 42 10 J2052+1619 00 03 37 45.0 268.5 3.2 70.8 23 795 06 42 10 06 42 40 --- 00 04 07 44.9 268.6 3.2 70.8 30 803 06 42 11 06 43 10 AT2019DSG 00 04 37 45.0 265.3 3.1 68.7 23 803 06 43 10 06 46 00 --- 00 07 27 44.3 265.7 3.2 68.8 170 846 06 43 11 06 46 30 J2052+1619 00 07 57 44.0 269.0 3.2 70.8 23 846 06 46 30 06 47 00 --- 00 08 27 43.9 269.1 3.2 70.8 30 854 06 46 31 06 47 30 AT2019DSG 00 08 57 44.0 265.8 3.2 68.8 23 854 06 47 30 06 50 20 --- 00 11 48 43.4 266.2 3.2 68.9 170 897 06 47 31 06 50 50 J2052+1619 00 12 18 43.0 269.5 3.3 70.8 23 897 06 50 50 06 51 20 --- 00 12 48 42.9 269.5 3.3 70.8 30 905 06 50 51 06 51 50 AT2019DSG 00 13 18 43.0 266.4 3.3 68.9 23 905 06 51 50 06 54 40 --- 00 16 09 42.4 266.7 3.3 69.0 170 949 06 51 51 06 55 10 J2052+1619 00 16 39 42.0 269.9 3.4 70.8 23 949 06 55 10 06 55 40 --- 00 17 09 41.9 270.0 3.4 70.8 30 956 06 55 11 06 56 10 AT2019DSG 00 17 39 42.0 266.9 3.3 69.0 23 956 06 56 10 06 59 00 --- 00 20 29 41.4 267.2 3.4 69.0 170 1000 06 56 11 ---------- 50s gap for Tsys ---------- 06 59 50 J2052+1619 00 21 19 41.0 270.4 3.5 70.8 43 1000 06 59 50 07 00 20 --- 00 21 50 40.8 270.5 3.5 70.8 30 1008 06 59 51 07 00 50 J2058+1512 00 22 20 41.7 268.5 3.4 69.9 24 1008 07 00 50 07 03 40 --- 00 25 10 41.1 268.8 3.4 69.9 170 1051 07 00 51 07 04 10 J2052+1619 00 25 40 40.0 270.9 3.5 70.8 24 1051 07 04 10 07 04 40 --- 00 26 10 39.9 270.9 3.5 70.8 30 1059 07 04 11 Schedule for KUNMING (Code Km ) Page 5 Revealing the radio structure of TDE AT2019dsg 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 28 Feb 2020 Day 59 --- 07 05 10 AT2019DSG 00 26 40 40.0 267.9 3.5 69.1 23 1059 07 05 10 07 08 00 --- 00 29 31 39.4 268.2 3.5 69.2 170 1103 07 05 11 07 08 30 J2052+1619 00 30 01 39.0 271.3 3.6 70.8 23 1103 07 08 30 07 09 00 --- 00 30 31 38.9 271.4 3.6 70.8 30 1110 07 08 31 07 09 30 AT2019DSG 00 31 01 39.0 268.4 3.6 69.2 23 1110 07 09 30 07 12 20 --- 00 33 51 38.4 268.7 3.6 69.2 170 1154 07 09 31 07 12 50 J2052+1619 00 34 22 38.0 271.8 3.7 70.8 23 1154 07 12 50 07 13 20 --- 00 34 52 37.9 271.8 3.7 70.7 30 1162 07 12 51 07 13 50 AT2019DSG 00 35 22 38.0 268.9 3.6 69.2 23 1162 07 13 50 07 16 40 --- 00 38 12 37.4 269.2 3.7 69.2 170 1205 07 13 51 07 17 10 J2052+1619 00 38 42 37.0 272.2 3.8 70.7 23 1205 07 17 10 07 17 40 --- 00 39 12 36.9 272.2 3.8 70.7 30 1213 07 17 11 07 18 10 AT2019DSG 00 39 42 37.1 269.3 3.7 69.2 23 1213 07 18 10 07 21 00 --- 00 42 33 36.4 269.7 3.7 69.2 170 1256 07 18 11 07 21 30 J2052+1619 00 43 03 36.0 272.6 3.8 70.7 23 1256 07 21 30 07 22 00 --- 00 43 33 35.9 272.7 3.8 70.7 30 1264 07 21 31 07 22 30 AT2019DSG 00 44 03 36.1 269.8 3.8 69.2 23 1264 07 22 30 07 25 20 --- 00 46 54 35.4 270.1 3.8 69.2 170 1308 07 22 31 ---------- 50s gap for Tsys ---------- 07 26 10 J2052+1619 00 47 44 35.0 273.1 3.9 70.6 43 1308 07 26 10 07 26 40 --- 00 48 14 34.9 273.1 3.9 70.6 30 1315 07 26 11 07 27 10 J2058+1512 00 48 44 35.7 271.3 3.8 69.9 24 1315 07 27 10 07 30 00 --- 00 51 34 35.1 271.6 3.9 69.9 170 1359 07 27 11 07 30 30 J2052+1619 00 52 04 34.0 273.5 4.0 70.5 24 1359 07 30 30 07 31 00 --- 00 52 35 33.9 273.5 4.0 70.5 30 1367 07 30 31 07 31 30 AT2019DSG 00 53 05 34.0 270.8 3.9 69.2 23 1367 07 31 30 07 34 20 --- 00 55 55 33.4 271.1 4.0 69.2 170 1410 07 31 31 07 34 50 J2052+1619 00 56 25 33.0 273.9 4.0 70.4 23 1410 07 34 50 07 35 20 --- 00 56 55 32.9 274.0 4.1 70.4 30 1418 07 34 51 Schedule for KUNMING (Code Km ) Page 6 Revealing the radio structure of TDE AT2019dsg 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 28 Feb 2020 Day 59 --- 07 35 50 AT2019DSG 00 57 25 33.0 271.2 4.0 69.2 23 1418 07 35 50 07 38 40 --- 01 00 16 32.4 271.5 4.0 69.2 170 1462 07 35 51 07 39 10 J2052+1619 01 00 46 32.0 274.3 4.1 70.4 23 1462 07 39 10 07 39 40 --- 01 01 16 31.9 274.4 4.1 70.4 30 1469 07 39 11 07 40 10 AT2019DSG 01 01 46 32.1 271.7 4.1 69.2 23 1469 07 40 10 07 43 00 --- 01 04 37 31.4 271.9 4.1 69.1 170 1513 07 40 11 07 43 30 J2052+1619 01 05 07 31.1 274.7 4.2 70.3 23 1513 07 43 30 07 44 00 --- 01 05 37 30.9 274.8 4.2 70.3 30 1521 07 43 31 07 44 30 AT2019DSG 01 06 07 31.1 272.1 4.1 69.1 23 1521 07 44 30 07 47 20 --- 01 08 57 30.4 272.4 4.2 69.1 170 1564 07 44 31 07 47 50 J2052+1619 01 09 27 30.1 275.2 4.3 70.2 23 1564 07 47 50 07 48 20 --- 01 09 57 30.0 275.2 4.3 70.2 30 1572 07 47 51 07 48 50 AT2019DSG 01 10 27 30.1 272.5 4.2 69.1 23 1572 07 48 50 07 51 40 --- 01 13 18 29.4 272.8 4.3 69.0 170 1615 07 48 51 ---------- 50s gap for Tsys ---------- 07 52 30 J2052+1619 01 14 08 29.0 275.6 4.3 70.1 43 1615 07 52 30 07 53 00 --- 01 14 38 28.9 275.6 4.4 70.0 30 1623 07 52 31 07 53 30 J2058+1512 01 15 08 29.8 273.9 4.3 69.6 24 1623 07 53 30 07 56 20 --- 01 17 59 29.1 274.2 4.3 69.5 170 1667 07 53 31 07 56 50 J2052+1619 01 18 29 28.0 276.0 4.4 69.9 24 1667 07 56 50 07 57 20 --- 01 18 59 27.9 276.0 4.4 69.9 30 1674 07 56 51 07 57 50 AT2019DSG 01 19 29 28.0 273.4 4.4 69.0 23 1674 07 57 50 08 00 40 --- 01 22 19 27.4 273.7 4.4 68.9 170 1718 07 57 51 08 01 10 J2052+1619 01 22 50 27.1 276.4 4.5 69.8 23 1718 08 01 10 08 01 40 --- 01 23 20 26.9 276.4 4.5 69.8 30 1726 08 01 11 08 02 10 AT2019DSG 01 23 50 27.1 273.8 4.4 68.9 23 1726 08 02 10 08 05 00 --- 01 26 40 26.4 274.1 4.5 68.8 170 1769 08 02 11 08 05 30 J2052+1619 01 27 10 26.1 276.8 4.6 69.7 23 1769 08 05 30 08 06 00 --- 01 27 40 26.0 276.8 4.6 69.7 30 1777 08 05 31 Schedule for KUNMING (Code Km ) Page 7 Revealing the radio structure of TDE AT2019dsg 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 28 Feb 2020 Day 59 --- 08 06 30 AT2019DSG 01 28 10 26.1 274.3 4.5 68.8 23 1777 08 06 30 08 09 20 --- 01 31 01 25.4 274.6 4.6 68.8 170 1821 08 06 31 08 09 50 J2052+1619 01 31 31 25.1 277.2 4.6 69.6 23 1821 08 09 50 08 10 20 --- 01 32 01 25.0 277.3 4.6 69.6 30 1828 08 09 51 08 10 50 AT2019DSG 01 32 31 25.1 274.7 4.6 68.7 23 1828 08 10 50 08 13 40 --- 01 35 22 24.5 275.0 4.6 68.7 170 1872 08 10 51 08 14 10 J2052+1619 01 35 52 24.1 277.6 4.7 69.4 23 1872 08 14 10 08 14 40 --- 01 36 22 24.0 277.7 4.7 69.4 30 1879 08 14 11 08 15 10 AT2019DSG 01 36 52 24.1 275.1 4.6 68.6 23 1879 08 15 10 08 18 00 --- 01 39 42 23.5 275.4 4.7 68.6 170 1923 08 15 11 ---------- 50s gap for Tsys ---------- 08 18 50 J2052+1619 01 40 32 23.1 278.0 4.8 69.3 43 1923 08 18 50 08 19 20 --- 01 41 03 23.0 278.1 4.8 69.3 30 1931 08 18 51 08 19 50 J2058+1512 01 41 33 23.8 276.4 4.7 69.0 24 1931 08 19 50 08 22 40 --- 01 44 23 23.2 276.7 4.7 68.9 170 1974 08 19 51 08 23 10 J2052+1619 01 44 53 22.1 278.4 4.9 69.1 24 1974 08 23 10 08 23 40 --- 01 45 23 22.0 278.5 4.9 69.1 30 1982 08 23 11 08 24 10 AT2019DSG 01 45 53 22.1 276.0 4.8 68.4 23 1982 08 24 10 08 27 00 --- 01 48 44 21.4 276.3 4.8 68.3 170 2026 08 24 11 08 27 30 J2052+1619 01 49 14 21.1 278.8 4.9 69.0 23 2026 08 27 30 08 28 00 --- 01 49 44 21.0 278.9 4.9 68.9 30 2033 08 27 31 08 28 30 AT2019DSG 01 50 14 21.1 276.4 4.9 68.3 23 2033 08 28 30 08 31 20 --- 01 53 04 20.5 276.7 4.9 68.2 170 2077 08 28 31 08 31 50 J2052+1619 01 53 35 20.2 279.2 5.0 68.8 23 2077 08 31 50 08 32 20 --- 01 54 05 20.0 279.3 5.0 68.8 30 2085 08 31 51 08 32 50 AT2019DSG 01 54 35 20.1 276.8 4.9 68.2 23 2085 08 32 50 08 35 40 --- 01 57 25 19.5 277.1 5.0 68.1 170 2128 08 32 51 08 36 10 J2052+1619 01 57 55 19.2 279.6 5.1 68.6 23 2128 08 36 10 08 36 40 --- 01 58 25 19.1 279.7 5.1 68.6 30 2136 08 36 11 Schedule for KUNMING (Code Km ) Page 8 Revealing the radio structure of TDE AT2019dsg 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 28 Feb 2020 Day 59 --- 08 37 10 AT2019DSG 01 58 55 19.2 277.2 5.0 68.1 24 2136 08 37 10 08 40 00 --- 02 01 46 18.5 277.5 5.1 68.0 170 2179 08 37 11 08 40 30 J2052+1619 02 02 16 18.2 280.0 5.1 68.4 24 2179 08 40 30 08 41 00 --- 02 02 46 18.1 280.1 5.2 68.4 30 2187 08 40 31 08 41 30 AT2019DSG 02 03 16 18.2 277.7 5.1 67.9 24 2187 08 41 30 08 44 20 --- 02 06 07 17.5 277.9 5.1 67.8 170 2231 08 41 31 ---------- 50s gap for Tsys ---------- 08 45 10 J2052+1619 02 06 57 17.2 280.5 5.2 68.2 44 2231 08 45 10 08 45 40 --- 02 07 27 17.1 280.5 5.2 68.2 30 2238 08 45 11 08 46 10 J2058+1512 02 07 57 17.9 278.9 5.1 68.1 24 2238 08 46 10 08 49 00 --- 02 10 47 17.2 279.2 5.2 68.0 170 2282 08 46 11 08 49 30 J2052+1619 02 11 17 16.2 280.9 5.3 68.1 24 2282 08 49 30 08 50 00 --- 02 11 48 16.1 280.9 5.3 68.0 30 2290 08 49 31 08 50 30 AT2019DSG 02 12 18 16.2 278.5 5.2 67.6 24 2290 08 50 30 08 53 20 --- 02 15 08 15.5 278.8 5.3 67.5 170 2333 08 50 31 08 53 50 J2052+1619 02 15 38 15.2 281.3 5.4 67.9 24 2333 08 53 50 08 54 20 --- 02 16 08 15.1 281.3 5.4 67.8 30 2341 08 53 51 08 54 50 AT2019DSG 02 16 38 15.2 278.9 5.3 67.5 24 2341 08 54 50 08 57 40 --- 02 19 29 14.5 279.2 5.4 67.4 170 2385 08 54 51 08 58 10 J2052+1619 02 19 59 14.3 281.7 5.4 67.7 24 2385 08 58 10 08 58 40 --- 02 20 29 14.2 281.7 5.4 67.6 30 2392 08 58 11 08 59 10 AT2019DSG 02 20 59 14.2 279.4 5.4 67.3 24 2392 08 59 10 09 02 00 --- 02 23 50 13.6 279.6 5.4 67.2 170 2436 08 59 11 09 02 30 J2052+1619 02 24 20 13.3 282.1 5.5 67.4 24 2436 09 02 30 09 03 00 --- 02 24 50 13.2 282.2 5.5 67.4 30 2444 09 02 31 09 03 30 AT2019DSG 02 25 20 13.2 279.8 5.5 67.1 24 2444 09 03 30 09 06 20 --- 02 28 10 12.6 280.1 5.5 67.0 170 2487 09 03 31 09 06 50 J2052+1619 02 28 40 12.4 282.5 5.6 67.2 24 2487 09 06 50 09 07 20 --- 02 29 10 12.2 282.6 5.6 67.2 30 2495 09 06 51 Schedule for KUNMING (Code Km ) Page 9 Revealing the radio structure of TDE AT2019dsg 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 28 Feb 2020 Day 59 --- 09 07 50 AT2019DSG 02 29 40 12.3 280.2 5.5 67.0 24 2495 09 07 50 09 10 40 --- 02 32 31 11.6 280.5 5.6 66.8 170 2538 09 07 51 ---------- 50s gap for Tsys ---------- 09 11 30 J2052+1619 02 33 21 11.3 283.0 5.7 67.0 44 2538 09 11 30 09 12 00 --- 02 33 51 11.2 283.0 5.7 67.0 30 2546 09 11 31 09 12 30 J2058+1512 02 34 21 12.0 281.4 5.6 67.0 24 2546 09 12 30 09 15 20 --- 02 37 12 11.4 281.7 5.6 66.9 170 2590 09 12 31 09 15 50 J2052+1619 02 37 42 10.4 283.4 5.7 66.8 24 2590 09 15 50 09 16 20 --- 02 38 12 10.3 283.4 5.7 66.7 30 2597 09 15 51 09 16 50 AT2019DSG 02 38 42 10.3 281.1 5.7 66.6 24 2597 09 16 50 09 19 40 --- 02 41 32 9.6 281.4 5.7 66.4 170 2641 09 16 51 09 20 10 J2052+1619 02 42 02 9.4 283.8 5.8 66.5 24 2641 09 20 10 09 20 40 --- 02 42 33 9.3 283.9 5.8 66.5 30 2649 09 20 11 09 21 10 AT2019DSG 02 43 03 9.3 281.5 5.8 66.4 24 2649 09 21 10 09 24 00 --- 02 45 53 8.7 281.8 5.8 66.2 170 2692 09 21 11 09 24 30 J2052+1619 02 46 23 8.4 284.2 5.9 66.3 24 2692 09 24 30 09 25 00 --- 02 46 53 8.3 284.3 5.9 66.3 30 2700 09 24 31 09 25 30 AT2019DSG 02 47 23 8.3 281.9 5.8 66.2 24 2700 09 25 30 09 28 20 --- 02 50 14 7.7 282.2 5.9 66.0 170 2744 09 25 31 09 28 50 J2052+1619 02 50 44 7.5 284.7 6.0 66.0 24 2744 09 28 50 09 29 20 --- 02 51 14 7.4 284.7 6.0 66.0 30 2751 09 28 51 09 29 50 AT2019DSG 02 51 44 7.4 282.4 5.9 66.0 24 2751 09 29 50 09 32 40 --- 02 54 35 6.7 282.6 5.9 65.8 170 2795 09 29 51 09 33 10 J2052+1619 02 55 05 6.5 285.1 6.0 65.8 24 2795 09 33 10 09 33 40 --- 02 55 35 6.4 285.1 6.0 65.8 30 2803 09 33 11 09 34 10 AT2019DSG 02 56 05 6.4 282.8 6.0 65.8 24 2803 09 34 10 09 37 00 --- 02 58 55 5.8 283.1 6.0 65.6 170 2846 09 34 11 ---------- Main calibrator ---------- 09 37 30 J2052+1619 02 59 25 5.6 285.5 6.1 65.5 24 2846 09 37 30 09 38 00 --- 02 59 55 5.5 285.6 6.1 65.5 30 2854 09 37 31 Schedule for KUNMING (Code Km ) Page 10 Revealing the radio structure of TDE AT2019dsg 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 28 Feb 2020 Day 59 --- 09 38 30 J2058+1512 03 00 26 6.2 284.0 6.0 65.7 24 2854 09 38 30 09 41 20 --- 03 03 16 5.6 284.3 6.1 65.6 170 2897 09 38 31 ---------- Ef out to check pointing ---------- 09 45 20 3C454.3 03 07 17 30.8 274.7 4.2 70.2 199 2897 09 45 20 09 50 20 --- 03 12 17 29.7 275.1 4.3 70.1 300 2974 09 45 21 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess120.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: 12 Station: KUNMING Total bit rate: 2048 Format: MARK5B 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= 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 4200.00 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 5 1 5 2 6 2 6 3 7 3 7 4 8 4 8 BBC SB= L L U U L L U U L L U U L L U U IF = A B A B A B A B A B A B A B A B The following frequency sets based on these setups were used. Frequency Set: 13 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= 630.49 630.49 630.49 630.49 694.49 694.49 694.49 694.49 758.49 758.49 758.49 758.49 822.49 822.49 822.49 822.49 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: 13 Track assignments are: track1= 18, 26, 2, 10, 20, 28, 4, 12, 22, 30, 6, 14, 24, 32, 8, 16 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * AT2019DSG 20 54 41.265069 * 20 57 02.965020 20 57 57.914266 12.00 14 00 40.58052 * 14 12 16.28980 14 16 45.26400 4.00 From catalog imbedded in main SCHED input file. From ATel 13105, e-MERLIN observations, 0.35 mJy on 2019 Jun 20 * J2058+1512 20 56 24.919674 * 20 58 45.819173 20 59 40.443962 2.08 15 00 32.08468 * 15 12 13.18646 15 16 44.22055 3.10 From catalog imbedded in main SCHED input file. rfc_2019c Petrov and Kovalev, in preparation 6 observations * J2052+1619 20 50 24.087782 * 20 52 43.619855 20 53 37.709826 0.14 16 08 26.79250 * 16 19 48.82816 16 24 12.11140 0.21 From catalog imbedded in main SCHED input file. rfc_2019c Petrov and Kovalev, in preparation 337 observations * 3C345 16 41 17.606229 * 16 42 58.809967 16 43 38.812600 0.79 J1642+3948 39 54 10.81492 * 39 48 36.99399 39 46 08.55860 0.59 1641+399 /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc J1642+39 GSFC 2016a X/S astro solution, 53724 observations. * 3C454.3 22 51 29.519739 * 22 53 57.747939 22 54 55.236124 0.65 J2253+1608 15 52 54.34808 * 16 08 53.56091 16 15 08.28855 0.73 2251+158 /home/guest/rmc/SCHED/sched11.5/catalogs/sources.gsfc J2253+16 GSFC 2016a X/S astro solution, 41272 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 AT2019DSG sess120.C2048 1 2 3 4 5 6 7 8 9 13 14 4.014 272.745 J2058+1512 sess120.C2048 1 2 3 4 5 6 7 8 9 13 14 0.897 61.250 J2052+1619 sess120.C2048 1 2 3 4 5 6 7 8 9 13 14 0.950 60.218 3C345 sess120.C2048 1 2 3 4 5 6 7 8 9 13 0.083 6.500 3C454.3 sess120.C2048 1 2 4 5 6 7 8 9 13 14 0.083 6.500 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) AT2019DSG 34.4 J2058+1512 34.7 J2052+1619 36.6 3C345 95.1 3C454.3 24.5 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