COVER INFORMATION Station: VLBA_BR (Code Br ) Experiment: Confirming the first detection of a merging dual SMBH system at high-z Exp. Code: gs044b Schedule Version: 2.00 Processed by SCHED version: 11.50 Development version 11.5. Started Apr. 2 PI: Cristiana Spingola Address: University of Bologna - INAF-IRA via Gobetti 101 40129 Bologna Italy Phone: +39 3938231373 EMAIL: spingola@ira.inaf.it Fax: Phone during observation: Observing mode: Notes: v2: T6 IF C->B, BBC 9-12 -> 5-8 COVER LETTER: Schedule for VLBA_BR (Code Br ) Page 2 Confirming the first detection of a merging dual SMBH system at high-z 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 ---------------------------------------------------------------------------------------- --- Tue 29 Oct 2019 Day 302 --- Next scan frequencies: 4860.25 4860.25 4892.25 4892.25 4924.25 4924.25 4956.25 4956.25 Next BBC frequencies: 760.25 760.25 792.25 792.25 824.25 824.25 856.25 856.25 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 20 45 10 J2018+0831 15 18 00 16.2 95.2 -5.0 -42.2 0 0 20 45 10 20 46 10 --- 15 19 00 16.4 95.4 -5.0 -42.2 60 8 20 45 11 20 46 10 MG2016 15 19 00 18.3 93.1 -5.0 -42.9 -12 8 20 46 22 20 49 40 --- 15 22 31 18.9 93.8 -5.0 -42.8 198 33 20 46 11 20 49 40 J2018+0831 15 22 31 16.9 96.1 -4.9 -42.2 -12 33 20 49 52 20 51 10 --- 15 24 01 17.2 96.4 -4.9 -42.1 78 43 20 49 41 20 51 10 MG2016 15 24 01 19.2 94.1 -4.9 -42.8 -12 43 20 51 22 20 54 40 --- 15 27 32 19.8 94.8 -4.9 -42.8 198 69 20 51 11 20 55 20 J2018+0831 15 28 12 17.9 97.2 -4.8 -42.0 28 69 20 55 20 20 56 20 --- 15 29 12 18.1 97.4 -4.8 -42.0 60 77 20 55 21 20 56 20 MG2016 15 29 12 20.0 95.1 -4.9 -42.7 -12 77 20 56 32 20 59 50 --- 15 32 43 20.6 95.7 -4.8 -42.7 198 102 20 56 21 20 59 50 J2018+0831 15 32 43 18.6 98.0 -4.8 -41.9 -12 102 21 00 02 21 01 20 --- 15 34 13 18.9 98.3 -4.7 -41.9 78 112 20 59 51 21 01 40 J2018+0831 15 34 33 18.9 98.4 -4.7 -41.9 14 112 Stopped 21 07 40 --- 15 40 34 19.9 99.6 -4.6 -41.7 360 112 21 09 10 3C345 15 42 04 76.2 121.5 -1.0 -47.8 -34 112 21 09 44 21 14 10 --- 15 47 05 76.9 124.3 -0.9 -45.8 266 146 21 09 11 21 18 40 J2018+0831 15 51 36 21.7 101.8 -4.5 -41.4 147 146 21 18 40 21 19 40 --- 15 52 36 21.9 102.0 -4.4 -41.3 60 154 21 18 41 21 19 40 MG2016 15 52 36 23.9 99.6 -4.5 -42.2 -12 154 21 19 52 21 23 10 --- 15 56 06 24.5 100.3 -4.4 -42.1 198 180 21 19 41 21 23 10 J2018+0831 15 56 06 22.5 102.7 -4.4 -41.2 -12 180 21 23 22 21 24 40 --- 15 57 37 22.7 103.0 -4.4 -41.1 78 190 21 23 11 21 24 40 MG2016 15 57 37 24.7 100.6 -4.4 -42.0 -12 190 21 24 52 21 28 10 --- 16 01 07 25.3 101.3 -4.3 -41.9 198 215 21 24 41 21 28 50 J2018+0831 16 01 47 23.4 103.8 -4.3 -41.0 28 215 21 28 50 21 29 50 --- 16 02 48 23.6 104.0 -4.3 -40.9 60 223 21 28 51 Schedule for VLBA_BR (Code Br ) Page 3 Confirming the first detection of a merging dual SMBH system at high-z 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 ---------------------------------------------------------------------------------------- --- Tue 29 Oct 2019 Day 302 --- 21 29 50 MG2016 16 02 48 25.6 101.7 -4.3 -41.8 -12 223 21 30 02 21 33 20 --- 16 06 18 26.1 102.4 -4.2 -41.7 198 248 21 29 51 21 33 20 J2018+0831 16 06 18 24.1 104.7 -4.2 -40.8 -12 248 21 33 32 21 34 50 --- 16 07 48 24.4 105.0 -4.2 -40.7 78 258 21 33 21 21 34 50 MG2016 16 07 48 26.4 102.7 -4.2 -41.6 -12 258 21 35 02 21 38 20 --- 16 11 19 27.0 103.4 -4.1 -41.5 198 284 21 34 51 21 39 00 J2018+0831 16 11 59 25.0 105.9 -4.1 -40.5 28 284 21 39 00 21 40 00 --- 16 12 59 25.2 106.1 -4.1 -40.4 60 292 21 39 01 21 40 00 MG2016 16 12 59 27.2 103.8 -4.1 -41.4 -12 292 21 40 12 21 43 30 --- 16 16 30 27.8 104.5 -4.1 -41.3 198 317 21 40 01 21 43 30 J2018+0831 16 16 30 25.8 106.8 -4.0 -40.2 -12 317 21 43 42 21 45 00 --- 16 18 00 26.0 107.2 -4.0 -40.2 78 327 21 43 31 21 45 00 MG2016 16 18 00 28.0 104.8 -4.0 -41.2 -12 327 21 45 12 21 48 30 --- 16 21 31 28.6 105.5 -4.0 -41.0 198 353 21 45 01 21 49 10 J2018+0831 16 22 11 26.7 108.0 -3.9 -39.9 28 353 21 49 10 21 50 10 --- 16 23 11 26.8 108.3 -3.9 -39.9 60 360 21 49 11 21 50 10 MG2016 16 23 11 28.9 105.9 -4.0 -40.9 -12 360 21 50 22 21 53 40 --- 16 26 42 29.4 106.6 -3.9 -40.7 198 386 21 50 11 21 53 40 J2018+0831 16 26 42 27.4 109.0 -3.9 -39.7 -12 386 21 53 52 21 55 10 --- 16 28 12 27.6 109.3 -3.8 -39.6 78 396 21 53 41 21 55 10 MG2016 16 28 12 29.7 107.0 -3.9 -40.7 -12 396 21 55 22 21 58 40 --- 16 31 42 30.2 107.7 -3.8 -40.5 198 421 21 55 11 21 59 20 J2018+0831 16 32 22 28.3 110.2 -3.8 -39.3 28 421 21 59 20 22 00 20 --- 16 33 23 28.4 110.5 -3.8 -39.2 60 429 21 59 21 22 00 20 MG2016 16 33 23 30.5 108.1 -3.8 -40.4 -12 429 22 00 32 22 03 50 --- 16 36 53 31.1 108.8 -3.7 -40.1 198 455 22 00 21 22 03 50 J2018+0831 16 36 53 29.0 111.2 -3.7 -39.0 -12 455 22 04 02 22 05 20 --- 16 38 23 29.2 111.6 -3.7 -38.9 78 465 22 03 51 22 05 20 MG2016 16 38 23 31.3 109.2 -3.7 -40.0 -12 465 22 05 32 22 08 50 --- 16 41 54 31.9 109.9 -3.6 -39.8 198 490 22 05 21 Schedule for VLBA_BR (Code Br ) Page 4 Confirming the first detection of a merging dual SMBH system at high-z 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 ---------------------------------------------------------------------------------------- --- Tue 29 Oct 2019 Day 302 --- 22 09 30 J2018+0831 16 42 34 29.9 112.5 -3.6 -38.6 28 490 22 09 30 22 10 30 --- 16 43 34 30.0 112.7 -3.6 -38.5 60 498 22 09 31 22 10 30 MG2016 16 43 34 32.1 110.3 -3.6 -39.7 -12 498 22 10 42 22 14 00 --- 16 47 05 32.7 111.1 -3.6 -39.5 198 524 22 10 31 22 14 00 J2018+0831 16 47 05 30.6 113.5 -3.5 -38.2 -12 524 22 14 12 22 15 30 --- 16 48 35 30.8 113.8 -3.5 -38.1 78 534 22 14 01 22 15 30 MG2016 16 48 35 32.9 111.4 -3.5 -39.4 -12 534 22 15 42 22 19 00 --- 16 52 06 33.4 112.2 -3.5 -39.1 198 559 22 15 31 22 19 40 J2018+0831 16 52 46 31.4 114.8 -3.4 -37.8 28 559 22 19 40 22 20 40 --- 16 53 46 31.6 115.0 -3.4 -37.7 60 567 22 19 41 22 20 40 MG2016 16 53 46 33.7 112.6 -3.4 -39.0 -12 567 22 20 52 22 24 10 --- 16 57 17 34.2 113.4 -3.4 -38.7 198 592 22 20 41 22 24 10 J2018+0831 16 57 17 32.1 115.8 -3.4 -37.4 -12 592 22 24 22 22 25 40 --- 16 58 47 32.3 116.2 -3.3 -37.3 78 602 22 24 11 22 25 40 MG2016 16 58 47 34.5 113.8 -3.4 -38.6 -12 602 22 25 52 22 29 10 --- 17 02 17 35.0 114.6 -3.3 -38.3 198 628 22 25 41 22 29 50 J2018+0831 17 02 57 32.9 117.1 -3.3 -36.9 28 628 22 29 50 22 30 50 --- 17 03 58 33.1 117.4 -3.3 -36.8 60 636 22 29 51 22 30 50 MG2016 17 03 58 35.3 115.0 -3.3 -38.1 -12 636 22 31 02 22 34 20 --- 17 07 28 35.8 115.8 -3.2 -37.8 198 661 22 30 51 22 34 20 J2018+0831 17 07 28 33.6 118.2 -3.2 -36.5 -12 661 22 34 32 22 35 50 --- 17 08 58 33.8 118.6 -3.2 -36.4 78 671 22 34 21 22 35 50 MG2016 17 08 58 36.0 116.2 -3.2 -37.7 -12 671 22 36 02 22 39 20 --- 17 12 29 36.5 117.0 -3.1 -37.4 198 697 22 35 51 22 40 00 J2018+0831 17 13 09 34.4 119.6 -3.1 -35.9 28 697 22 40 00 22 41 00 --- 17 14 09 34.6 119.8 -3.1 -35.8 60 704 22 40 01 22 41 00 MG2016 17 14 09 36.8 117.4 -3.1 -37.2 -12 704 22 41 12 22 44 30 --- 17 17 40 37.3 118.3 -3.0 -36.9 198 730 22 41 01 22 44 30 J2018+0831 17 17 40 35.1 120.7 -3.0 -35.5 -12 730 22 44 42 22 46 00 --- 17 19 10 35.3 121.1 -3.0 -35.3 78 740 22 44 31 Schedule for VLBA_BR (Code Br ) Page 5 Confirming the first detection of a merging dual SMBH system at high-z 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 ---------------------------------------------------------------------------------------- --- Tue 29 Oct 2019 Day 302 --- 22 46 00 MG2016 17 19 10 37.5 118.7 -3.0 -36.7 -13 740 22 46 13 22 49 30 --- 17 22 41 38.0 119.5 -3.0 -36.3 197 765 22 46 01 22 50 10 J2018+0831 17 23 21 35.9 122.1 -2.9 -34.9 28 765 22 50 10 22 51 10 --- 17 24 21 36.0 122.3 -2.9 -34.8 60 773 22 50 11 22 51 10 MG2016 17 24 21 38.3 119.9 -2.9 -36.2 -13 773 22 51 23 22 54 40 --- 17 27 52 38.8 120.8 -2.9 -35.8 197 798 22 51 11 22 54 40 J2018+0831 17 27 52 36.5 123.2 -2.9 -34.4 -13 798 22 54 53 22 56 10 --- 17 29 22 36.7 123.6 -2.8 -34.2 77 808 22 54 41 22 56 10 MG2016 17 29 22 39.0 121.2 -2.8 -35.6 -13 808 22 56 23 22 59 40 --- 17 32 52 39.5 122.1 -2.8 -35.2 197 834 22 56 11 23 00 20 J2018+0831 17 33 32 37.3 124.7 -2.8 -33.7 27 834 23 00 20 23 01 20 --- 17 34 33 37.5 124.9 -2.7 -33.6 60 841 23 00 21 23 01 20 MG2016 17 34 33 39.7 122.6 -2.8 -35.0 -13 841 23 01 33 23 04 50 --- 17 38 03 40.2 123.5 -2.7 -34.6 197 867 23 01 21 23 04 50 J2018+0831 17 38 03 37.9 125.9 -2.7 -33.2 -13 867 23 05 03 23 06 20 --- 17 39 33 38.1 126.3 -2.7 -33.0 77 877 23 04 51 23 06 20 MG2016 17 39 33 40.4 123.9 -2.7 -34.4 -13 877 23 06 33 23 09 50 --- 17 43 04 40.9 124.8 -2.6 -34.0 197 902 23 06 21 23 10 30 J2018+0831 17 43 44 38.7 127.4 -2.6 -32.4 27 902 23 10 30 23 11 30 --- 17 44 44 38.8 127.6 -2.6 -32.3 60 910 23 10 31 23 11 30 MG2016 17 44 44 41.1 125.3 -2.6 -33.8 -13 910 23 11 43 23 15 00 --- 17 48 15 41.6 126.2 -2.5 -33.3 197 935 23 11 31 23 15 00 J2018+0831 17 48 15 39.3 128.6 -2.5 -31.8 -13 935 23 15 13 23 16 30 --- 17 49 45 39.5 129.0 -2.5 -31.6 77 945 23 15 01 23 16 30 MG2016 17 49 45 41.8 126.6 -2.5 -33.1 -13 945 23 16 43 23 20 00 --- 17 53 16 42.3 127.6 -2.4 -32.7 197 971 23 16 31 23 20 40 J2018+0831 17 53 56 40.0 130.1 -2.4 -31.1 27 971 23 20 40 23 21 40 --- 17 54 56 40.2 130.4 -2.4 -30.9 60 978 23 20 41 23 21 40 MG2016 17 54 56 42.5 128.1 -2.4 -32.4 -13 978 23 21 53 23 25 10 --- 17 58 27 43.0 129.1 -2.4 -31.9 197 1004 23 21 41 Schedule for VLBA_BR (Code Br ) Page 6 Confirming the first detection of a merging dual SMBH system at high-z 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 ---------------------------------------------------------------------------------------- --- Tue 29 Oct 2019 Day 302 --- 23 25 10 J2018+0831 17 58 27 40.6 131.4 -2.3 -30.4 -13 1004 23 25 23 23 26 40 --- 17 59 57 40.8 131.8 -2.3 -30.2 77 1014 23 25 11 23 26 40 MG2016 17 59 57 43.2 129.5 -2.3 -31.7 -13 1014 23 26 53 23 30 10 --- 18 03 27 43.6 130.5 -2.3 -31.2 197 1039 23 26 41 23 30 50 J2018+0831 18 04 07 41.3 133.0 -2.3 -29.6 27 1039 23 30 50 23 31 50 --- 18 05 08 41.4 133.3 -2.2 -29.4 60 1047 23 30 51 23 31 50 MG2016 18 05 08 43.8 131.0 -2.3 -30.9 -13 1047 23 32 03 23 35 20 --- 18 08 38 44.3 132.0 -2.2 -30.4 197 1072 23 31 51 23 35 20 J2018+0831 18 08 38 41.8 134.3 -2.2 -28.9 -13 1072 23 35 33 23 36 50 --- 18 10 08 42.0 134.7 -2.1 -28.6 77 1082 23 35 21 23 36 50 MG2016 18 10 08 44.4 132.5 -2.2 -30.2 -13 1082 23 37 03 23 40 20 --- 18 13 39 44.9 133.5 -2.1 -29.6 197 1107 23 36 51 23 41 00 J2018+0831 18 14 19 42.5 136.0 -2.1 -28.0 27 1107 23 41 00 23 42 00 --- 18 15 19 42.6 136.3 -2.1 -27.8 60 1115 23 41 01 23 42 00 MG2016 18 15 19 45.1 134.0 -2.1 -29.3 -13 1115 23 42 13 23 45 30 --- 18 18 50 45.5 135.1 -2.0 -28.8 197 1140 23 42 01 23 45 30 J2018+0831 18 18 50 43.0 137.3 -2.0 -27.2 -13 1140 23 45 43 23 47 00 --- 18 20 20 43.2 137.8 -2.0 -27.0 77 1150 23 45 31 23 47 00 MG2016 18 20 20 45.7 135.5 -2.0 -28.5 -13 1150 23 47 13 23 50 30 --- 18 23 51 46.1 136.6 -1.9 -27.9 197 1176 23 47 01 23 51 10 J2018+0831 18 24 31 43.7 139.0 -1.9 -26.3 27 1176 23 51 10 23 52 10 --- 18 25 31 43.8 139.4 -1.9 -26.1 60 1183 23 51 11 23 52 10 MG2016 18 25 31 46.3 137.2 -1.9 -27.6 -13 1183 23 52 23 23 55 40 --- 18 29 02 46.7 138.3 -1.9 -27.0 197 1209 23 52 11 23 55 40 J2018+0831 18 29 02 44.1 140.4 -1.8 -25.5 -13 1209 23 55 53 23 57 10 --- 18 30 32 44.3 140.9 -1.8 -25.2 77 1219 23 55 41 --- Start: Tue 29 Oct 2019 Day 302 -- Stop: Wed 30 Oct 2019 Day 303 --- 23 57 10 MG2016 18 30 32 46.8 138.7 -1.8 -26.7 -13 1219 23 57 23 00 00 40 --- 18 34 02 47.2 139.9 -1.8 -26.0 197 1244 23 57 11 Schedule for VLBA_BR (Code Br ) Page 7 Confirming the first detection of a merging dual SMBH system at high-z 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 30 Oct 2019 Day 303 --- 00 01 20 J2018+0831 18 34 42 44.7 142.2 -1.7 -24.4 27 1244 00 01 20 00 02 20 --- 18 35 43 44.8 142.5 -1.7 -24.2 60 1252 00 01 21 00 02 20 MG2016 18 35 43 47.4 140.4 -1.7 -25.7 -13 1252 00 02 33 00 05 50 --- 18 39 13 47.7 141.6 -1.7 -25.1 197 1277 00 02 21 00 05 50 J2018+0831 18 39 13 45.2 143.7 -1.7 -23.6 -13 1277 00 06 03 00 07 20 --- 18 40 43 45.3 144.2 -1.6 -23.3 77 1287 00 05 51 00 07 20 MG2016 18 40 43 47.9 142.1 -1.7 -24.8 -13 1287 00 07 33 00 10 50 --- 18 44 14 48.3 143.2 -1.6 -24.1 197 1313 00 07 21 00 11 30 J2018+0831 18 44 54 45.7 145.5 -1.6 -22.5 27 1313 00 11 30 00 12 30 --- 18 45 54 45.8 145.8 -1.6 -22.3 60 1320 00 11 31 00 12 30 MG2016 18 45 54 48.4 143.8 -1.6 -23.7 -13 1320 00 12 43 00 16 00 --- 18 49 25 48.8 145.0 -1.5 -23.0 197 1346 00 12 31 00 16 00 J2018+0831 18 49 25 46.2 147.0 -1.5 -21.6 -13 1346 00 16 13 00 17 30 --- 18 50 55 46.3 147.5 -1.5 -21.3 77 1356 00 16 01 00 17 30 MG2016 18 50 55 48.9 145.5 -1.5 -22.7 -13 1356 00 17 43 00 21 00 --- 18 54 26 49.2 146.7 -1.4 -21.9 197 1381 00 17 31 00 21 40 J2018+0831 18 55 06 46.7 148.9 -1.4 -20.4 27 1381 00 21 40 00 22 40 --- 18 56 06 46.8 149.2 -1.4 -20.2 60 1389 00 21 41 00 22 40 MG2016 18 56 06 49.4 147.3 -1.4 -21.6 -13 1389 00 22 53 00 26 10 --- 18 59 37 49.7 148.5 -1.3 -20.8 197 1414 00 22 41 00 26 10 J2018+0831 18 59 37 47.0 150.4 -1.3 -19.5 -13 1414 00 26 23 00 27 40 --- 19 01 07 47.2 150.9 -1.3 -19.1 77 1424 00 26 11 00 27 40 MG2016 19 01 07 49.8 149.1 -1.3 -20.5 -13 1424 00 27 53 00 31 10 --- 19 04 37 50.1 150.3 -1.3 -19.7 197 1449 00 27 41 00 31 50 J2018+0831 19 05 17 47.5 152.4 -1.2 -18.2 27 1449 00 31 50 00 32 50 --- 19 06 18 47.6 152.7 -1.2 -18.0 60 1457 00 31 51 00 32 50 MG2016 19 06 18 50.3 150.9 -1.2 -19.3 -14 1457 00 33 04 00 36 20 --- 19 09 48 50.5 152.2 -1.2 -18.5 196 1482 00 32 51 00 36 20 J2018+0831 19 09 48 47.8 154.0 -1.2 -17.2 -13 1482 00 36 33 00 37 50 --- 19 11 18 47.9 154.5 -1.1 -16.9 77 1492 00 36 21 Schedule for VLBA_BR (Code Br ) Page 8 Confirming the first detection of a merging dual SMBH system at high-z 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 30 Oct 2019 Day 303 --- 00 37 50 MG2016 19 11 18 50.7 152.8 -1.1 -18.2 -14 1492 00 38 04 00 41 20 --- 19 14 49 50.9 154.1 -1.1 -17.3 196 1517 00 37 51 00 42 00 J2018+0831 19 15 29 48.2 156.0 -1.1 -15.9 26 1517 00 42 00 00 43 00 --- 19 16 29 48.3 156.3 -1.0 -15.7 60 1525 00 42 01 00 44 30 3C345 19 18 00 61.3 267.6 2.6 60.2 2 1525 00 44 30 00 49 30 --- 19 23 00 60.5 268.6 2.7 60.2 300 1564 00 44 31 00 54 00 J2018+0831 19 27 31 49.0 160.3 -0.9 -13.1 184 1564 00 54 00 00 55 00 --- 19 28 31 49.0 160.7 -0.8 -12.9 60 1572 00 54 01 00 55 00 MG2016 19 28 31 51.8 159.2 -0.9 -14.0 -14 1572 00 55 14 00 58 30 --- 19 32 02 52.0 160.6 -0.8 -13.1 196 1597 00 55 01 00 58 30 J2018+0831 19 32 02 49.2 162.0 -0.8 -12.0 -14 1597 00 58 44 01 00 00 --- 19 33 32 49.3 162.6 -0.8 -11.7 76 1607 00 58 31 01 00 00 MG2016 19 33 32 52.1 161.2 -0.8 -12.7 -14 1607 01 00 14 01 03 30 --- 19 37 03 52.3 162.5 -0.7 -11.8 196 1632 01 00 01 01 04 10 J2018+0831 19 37 43 49.5 164.1 -0.7 -10.6 26 1632 01 04 10 01 05 10 --- 19 38 43 49.6 164.5 -0.7 -10.4 60 1640 01 04 11 01 05 10 MG2016 19 38 43 52.4 163.2 -0.7 -11.4 -14 1640 01 05 24 01 08 40 --- 19 42 14 52.5 164.6 -0.6 -10.4 196 1665 01 05 11 01 08 40 J2018+0831 19 42 14 49.7 165.8 -0.6 -9.5 -14 1665 01 08 54 01 10 10 --- 19 43 44 49.8 166.4 -0.6 -9.1 76 1675 01 08 41 01 10 10 MG2016 19 43 44 52.6 165.2 -0.6 -10.0 -14 1675 01 10 24 01 13 40 --- 19 47 14 52.7 166.6 -0.5 -9.1 196 1700 01 10 11 01 14 20 J2018+0831 19 47 54 49.9 168.0 -0.5 -8.1 26 1700 01 14 20 01 15 20 --- 19 48 55 50.0 168.3 -0.5 -7.8 60 1708 01 14 21 01 15 20 MG2016 19 48 55 52.8 167.2 -0.5 -8.6 -14 1708 01 15 34 01 18 50 --- 19 52 25 52.9 168.7 -0.5 -7.7 196 1733 01 15 21 01 18 50 J2018+0831 19 52 25 50.1 169.7 -0.4 -6.9 -14 1733 01 19 04 01 20 20 --- 19 53 55 50.1 170.3 -0.4 -6.6 76 1743 01 18 51 01 20 20 MG2016 19 53 55 53.0 169.3 -0.4 -7.3 -14 1743 01 20 34 01 23 50 --- 19 57 26 53.1 170.7 -0.4 -6.3 196 1768 01 20 21 Schedule for VLBA_BR (Code Br ) Page 9 Confirming the first detection of a merging dual SMBH system at high-z 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 30 Oct 2019 Day 303 --- 01 24 30 J2018+0831 19 58 06 50.2 171.9 -0.4 -5.5 26 1768 01 24 30 01 25 30 --- 19 59 06 50.2 172.2 -0.3 -5.2 60 1776 01 24 31 01 25 30 MG2016 19 59 06 53.1 171.4 -0.4 -5.9 -14 1776 01 25 44 01 29 00 --- 20 02 37 53.2 172.8 -0.3 -4.9 196 1801 01 25 31 01 29 00 J2018+0831 20 02 37 50.3 173.6 -0.3 -4.3 -14 1801 01 29 14 01 30 30 --- 20 04 07 50.3 174.2 -0.3 -3.9 76 1811 01 29 01 01 30 30 MG2016 20 04 07 53.2 173.4 -0.3 -4.5 -14 1811 01 30 44 01 34 00 --- 20 07 38 53.3 174.8 -0.2 -3.5 196 1836 01 30 31 01 34 40 J2018+0831 20 08 18 50.4 175.8 -0.2 -2.8 26 1836 01 34 40 01 35 40 --- 20 09 18 50.4 176.2 -0.2 -2.6 60 1844 01 34 41 01 35 40 MG2016 20 09 18 53.3 175.5 -0.2 -3.1 -14 1844 01 35 54 01 39 10 --- 20 12 49 53.4 177.0 -0.1 -2.1 196 1869 01 35 41 01 39 10 J2018+0831 20 12 49 50.4 177.5 -0.1 -1.7 -14 1869 01 39 24 01 40 40 --- 20 14 19 50.5 178.1 -0.1 -1.3 76 1879 01 39 11 01 40 40 MG2016 20 14 19 53.4 177.6 -0.1 -1.7 -14 1879 01 40 54 01 44 10 --- 20 17 49 53.4 179.0 -0.0 -0.7 196 1904 01 40 41 01 44 50 J2018+0831 20 18 29 50.5 179.8 -0.0 -0.2 26 1904 01 44 50 01 45 50 --- 20 19 30 50.5 180.1 0.0 0.1 60 1912 01 44 51 01 45 50 MG2016 20 19 30 53.4 179.7 -0.0 -0.2 -14 1912 01 46 04 01 49 20 --- 20 23 00 53.4 181.1 0.0 0.8 196 1937 01 45 51 01 49 20 J2018+0831 20 23 00 50.5 181.5 0.1 1.0 -14 1937 01 49 34 01 50 50 --- 20 24 30 50.4 182.1 0.1 1.4 76 1947 01 49 21 01 50 50 MG2016 20 24 30 53.4 181.8 0.1 1.2 -14 1947 01 51 04 01 54 20 --- 20 28 01 53.4 183.2 0.1 2.2 196 1972 01 50 51 01 55 00 J2018+0831 20 28 41 50.4 183.7 0.2 2.5 26 1972 01 55 00 01 56 00 --- 20 29 41 50.4 184.1 0.2 2.8 60 1980 01 55 01 01 56 00 MG2016 20 29 41 53.3 183.9 0.2 2.6 -14 1980 01 56 14 01 59 30 --- 20 33 12 53.3 185.3 0.2 3.6 196 2005 01 56 01 01 59 30 J2018+0831 20 33 12 50.4 185.5 0.2 3.7 -14 2005 01 59 44 02 01 00 --- 20 34 42 50.3 186.0 0.3 4.1 76 2015 01 59 31 Schedule for VLBA_BR (Code Br ) Page 10 Confirming the first detection of a merging dual SMBH system at high-z 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 30 Oct 2019 Day 303 --- 02 01 00 MG2016 20 34 42 53.3 185.9 0.2 4.0 -14 2015 02 01 14 02 04 30 --- 20 38 13 53.2 187.4 0.3 5.0 196 2040 02 01 01 02 05 10 J2018+0831 20 38 53 50.2 187.6 0.3 5.2 26 2040 02 05 10 02 06 10 --- 20 39 53 50.2 188.0 0.3 5.4 60 2048 02 05 11 02 06 10 MG2016 20 39 53 53.2 188.0 0.3 5.5 -14 2048 02 06 24 02 09 40 --- 20 43 24 53.1 189.5 0.4 6.4 196 2073 02 06 11 02 09 40 J2018+0831 20 43 24 50.1 189.4 0.4 6.3 -14 2073 02 09 54 02 11 10 --- 20 44 54 50.1 190.0 0.4 6.7 76 2083 02 09 41 02 11 10 MG2016 20 44 54 53.0 190.1 0.4 6.8 -14 2083 02 11 24 02 14 40 --- 20 48 24 52.9 191.5 0.5 7.8 196 2108 02 11 11 02 15 20 J2018+0831 20 49 04 50.0 191.6 0.5 7.8 26 2108 02 15 20 02 16 20 --- 20 50 05 49.9 191.9 0.5 8.0 60 2116 02 15 21 02 16 20 MG2016 20 50 05 52.9 192.2 0.5 8.3 -14 2116 02 16 34 02 19 50 --- 20 53 35 52.7 193.6 0.6 9.2 196 2141 02 16 21 02 19 50 J2018+0831 20 53 35 49.8 193.3 0.6 8.9 -14 2141 02 20 04 02 21 20 --- 20 55 05 49.7 193.8 0.6 9.3 76 2151 02 19 51 02 21 20 MG2016 20 55 05 52.7 194.2 0.6 9.6 -14 2151 02 21 34 02 24 50 --- 20 58 36 52.5 195.6 0.6 10.5 196 2176 02 21 21 02 25 30 J2018+0831 20 59 16 49.6 195.4 0.7 10.3 26 2176 02 25 30 02 26 30 --- 21 00 16 49.5 195.8 0.7 10.6 60 2184 02 25 31 02 26 30 MG2016 21 00 16 52.4 196.2 0.7 11.0 -14 2184 02 26 44 02 30 00 --- 21 03 47 52.3 197.6 0.7 11.9 196 2209 02 26 31 02 30 00 J2018+0831 21 03 47 49.4 197.1 0.7 11.4 -14 2209 02 30 14 02 31 30 --- 21 05 17 49.3 197.6 0.8 11.8 76 2219 02 30 01 02 31 30 MG2016 21 05 17 52.2 198.2 0.8 12.3 -14 2219 02 31 44 02 35 00 --- 21 08 48 52.0 199.6 0.8 13.2 196 2244 02 31 31 02 35 40 J2018+0831 21 09 28 49.1 199.2 0.8 12.8 26 2244 02 35 40 02 36 40 --- 21 10 28 49.0 199.6 0.9 13.1 60 2252 02 35 41 02 36 40 MG2016 21 10 28 51.9 200.2 0.8 13.6 -14 2252 02 36 54 02 40 10 --- 21 13 59 51.7 201.6 0.9 14.5 196 2277 02 36 41 Schedule for VLBA_BR (Code Br ) Page 11 Confirming the first detection of a merging dual SMBH system at high-z 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 30 Oct 2019 Day 303 --- 02 40 10 J2018+0831 21 13 59 48.8 200.8 0.9 13.9 -14 2277 02 40 24 02 41 40 --- 21 15 29 48.7 201.4 0.9 14.3 76 2287 02 40 11 02 41 40 MG2016 21 15 29 51.6 202.1 0.9 14.9 -14 2287 02 41 54 02 45 10 --- 21 18 59 51.4 203.5 1.0 15.7 196 2312 02 41 41 02 45 50 J2018+0831 21 19 40 48.4 202.9 1.0 15.2 26 2312 02 45 50 02 46 50 --- 21 20 40 48.4 203.3 1.0 15.5 60 2320 02 45 51 02 46 50 MG2016 21 20 40 51.3 204.1 1.0 16.1 -14 2320 02 47 04 02 50 20 --- 21 24 10 51.0 205.4 1.1 17.0 196 2345 02 46 51 02 50 20 J2018+0831 21 24 10 48.1 204.5 1.1 16.3 -14 2345 02 50 34 02 51 50 --- 21 25 40 48.0 205.0 1.1 16.6 76 2355 02 50 21 02 51 50 MG2016 21 25 40 50.9 206.0 1.1 17.4 -14 2355 02 52 04 02 55 20 --- 21 29 11 50.7 207.3 1.1 18.2 196 2380 02 51 51 02 56 00 J2018+0831 21 29 51 47.7 206.5 1.2 17.5 26 2380 02 56 00 02 57 00 --- 21 30 51 47.7 206.9 1.2 17.8 60 2388 02 56 01 02 57 00 MG2016 21 30 51 50.5 207.9 1.2 18.6 -14 2388 02 57 14 03 00 30 --- 21 34 22 50.2 209.1 1.2 19.4 196 2413 02 57 01 03 00 30 J2018+0831 21 34 22 47.4 208.1 1.3 18.5 -14 2413 03 00 44 03 02 00 --- 21 35 52 47.3 208.6 1.3 18.9 76 2423 03 00 31 03 02 00 MG2016 21 35 52 50.1 209.7 1.3 19.7 -14 2423 03 02 14 03 05 30 --- 21 39 23 49.8 210.9 1.3 20.5 196 2448 03 02 01 03 06 10 J2018+0831 21 40 03 46.9 210.0 1.3 19.8 26 2448 03 06 10 03 07 10 --- 21 41 03 46.8 210.4 1.4 20.0 60 2456 03 06 11 03 07 10 MG2016 21 41 03 49.7 211.5 1.3 20.9 -14 2456 03 07 24 03 10 40 --- 21 44 34 49.4 212.8 1.4 21.6 196 2481 03 07 11 03 10 40 J2018+0831 21 44 34 46.5 211.6 1.4 20.7 -14 2481 03 10 54 03 12 10 --- 21 46 04 46.4 212.1 1.4 21.0 76 2491 03 10 41 03 12 10 MG2016 21 46 04 49.2 213.3 1.4 22.0 -14 2491 03 12 24 03 15 40 --- 21 49 34 48.9 214.5 1.5 22.7 196 2516 03 12 11 03 16 20 J2018+0831 21 50 15 46.0 213.5 1.5 21.9 26 2516 03 16 20 03 17 20 --- 21 51 15 45.9 213.8 1.5 22.1 60 2524 03 16 21 Schedule for VLBA_BR (Code Br ) Page 12 Confirming the first detection of a merging dual SMBH system at high-z 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 30 Oct 2019 Day 303 --- 03 17 20 MG2016 21 51 15 48.7 215.1 1.5 23.0 -14 2524 03 17 34 03 20 50 --- 21 54 45 48.4 216.3 1.6 23.8 196 2549 03 17 21 03 20 50 J2018+0831 21 54 45 45.6 214.9 1.6 22.7 -14 2549 03 21 04 03 22 20 --- 21 56 15 45.5 215.4 1.6 23.0 76 2559 03 20 51 03 22 20 MG2016 21 56 15 48.3 216.8 1.6 24.1 -14 2559 03 22 34 03 25 50 --- 21 59 46 47.9 218.0 1.7 24.8 196 2584 03 22 21 03 26 30 J2018+0831 22 00 26 45.1 216.8 1.7 23.8 26 2584 03 26 30 03 27 30 --- 22 01 26 45.0 217.1 1.7 24.0 60 2592 03 26 31 03 27 30 MG2016 22 01 26 47.7 218.5 1.7 25.1 -14 2592 03 27 44 03 31 00 --- 22 04 57 47.4 219.7 1.7 25.8 196 2617 03 27 31 03 31 00 J2018+0831 22 04 57 44.6 218.2 1.8 24.7 -14 2617 03 31 14 03 32 30 --- 22 06 27 44.4 218.7 1.8 25.0 76 2627 03 31 01 03 32 30 MG2016 22 06 27 47.2 220.1 1.8 26.0 -14 2627 03 32 44 03 36 00 --- 22 09 58 46.8 221.3 1.8 26.7 196 2652 03 32 31 03 36 40 J2018+0831 22 10 38 44.0 220.0 1.9 25.7 26 2652 03 36 40 03 37 40 --- 22 11 38 43.9 220.3 1.9 25.9 60 2660 03 36 41 03 37 40 MG2016 22 11 38 46.6 221.8 1.9 27.0 -14 2660 03 37 54 03 41 10 --- 22 15 09 46.2 222.9 1.9 27.6 196 2685 03 37 41 03 41 10 J2018+0831 22 15 09 43.5 221.4 1.9 26.5 -14 2685 03 41 24 03 42 40 --- 22 16 39 43.3 221.8 2.0 26.8 76 2695 03 41 11 03 42 40 MG2016 22 16 39 46.1 223.4 1.9 27.9 -14 2695 03 42 54 03 46 10 --- 22 20 09 45.7 224.5 2.0 28.5 196 2720 03 42 41 03 46 50 J2018+0831 22 20 50 42.9 223.1 2.0 27.5 26 2720 03 46 50 03 47 50 --- 22 21 50 42.8 223.4 2.0 27.6 60 2728 03 46 51 03 47 50 MG2016 22 21 50 45.5 225.0 2.0 28.8 -13 2728 03 48 03 03 51 20 --- 22 25 20 45.0 226.1 2.1 29.4 197 2753 03 47 51 03 51 20 J2018+0831 22 25 20 42.4 224.4 2.1 28.2 -14 2753 03 51 34 03 52 50 --- 22 26 51 42.2 224.9 2.1 28.4 76 2763 03 51 21 03 52 50 MG2016 22 26 51 44.9 226.5 2.1 29.6 -13 2763 03 53 03 03 56 20 --- 22 30 21 44.4 227.6 2.2 30.2 197 2788 03 52 51 Schedule for VLBA_BR (Code Br ) Page 13 Confirming the first detection of a merging dual SMBH system at high-z 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 30 Oct 2019 Day 303 --- 03 57 00 J2018+0831 22 31 01 41.7 226.1 2.2 29.1 27 2788 03 57 00 03 58 00 --- 22 32 01 41.6 226.4 2.2 29.3 60 2796 03 57 01 03 58 00 MG2016 22 32 01 44.2 228.0 2.2 30.4 -13 2796 03 58 13 04 01 30 --- 22 35 32 43.8 229.1 2.3 31.0 197 2822 03 58 01 04 01 30 J2018+0831 22 35 32 41.1 227.4 2.3 29.8 -13 2822 04 01 43 04 03 00 --- 22 37 02 40.9 227.8 2.3 30.0 77 2831 04 01 31 04 03 00 MG2016 22 37 02 43.6 229.5 2.3 31.2 -13 2831 04 03 13 04 06 30 --- 22 40 33 43.1 230.5 2.3 31.7 197 2857 04 03 01 04 07 10 J2018+0831 22 41 13 40.4 229.0 2.4 30.6 27 2857 04 07 10 04 08 10 --- 22 42 13 40.3 229.3 2.4 30.8 60 2865 04 07 11 04 08 10 MG2016 22 42 13 42.9 231.0 2.4 32.0 -13 2865 04 08 23 04 11 40 --- 22 45 44 42.5 232.0 2.4 32.5 197 2890 04 08 11 04 11 40 J2018+0831 22 45 44 39.8 230.2 2.4 31.3 -13 2890 04 11 53 04 13 10 --- 22 47 14 39.7 230.7 2.5 31.5 77 2900 04 11 41 04 13 10 MG2016 22 47 14 42.3 232.4 2.5 32.7 -13 2900 04 13 23 04 16 40 --- 22 50 44 41.8 233.4 2.5 33.1 197 2925 04 13 11 04 17 20 J2018+0831 22 51 25 39.1 231.8 2.5 32.0 27 2925 04 17 20 04 18 20 --- 22 52 25 39.0 232.1 2.6 32.2 60 2933 04 17 21 04 18 20 MG2016 22 52 25 41.6 233.8 2.5 33.4 -13 2933 04 18 33 04 21 50 --- 22 55 55 41.1 234.8 2.6 33.8 197 2958 04 18 21 04 21 50 J2018+0831 22 55 55 38.5 233.0 2.6 32.6 -13 2958 04 22 03 04 23 20 --- 22 57 26 38.3 233.4 2.6 32.8 77 2968 04 21 51 04 23 20 MG2016 22 57 26 40.9 235.2 2.6 34.0 -13 2968 04 23 33 04 26 50 --- 23 00 56 40.4 236.1 2.7 34.4 197 2994 04 23 21 04 27 30 J2018+0831 23 01 36 37.8 234.5 2.7 33.3 27 2994 04 27 30 04 28 30 --- 23 02 36 37.6 234.8 2.7 33.5 60 3001 04 27 31 04 28 30 MG2016 23 02 36 40.2 236.6 2.7 34.6 -13 3001 04 28 43 04 32 00 --- 23 06 07 39.7 237.5 2.8 35.1 197 3027 04 28 31 04 32 00 J2018+0831 23 06 07 37.1 235.7 2.8 33.9 -13 3027 04 32 13 04 33 30 --- 23 07 37 36.9 236.1 2.8 34.1 77 3037 04 32 01 Schedule for VLBA_BR (Code Br ) Page 14 Confirming the first detection of a merging dual SMBH system at high-z 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 30 Oct 2019 Day 303 --- 04 33 30 MG2016 23 07 37 39.5 237.9 2.8 35.2 -13 3037 04 33 43 04 37 00 --- 23 11 08 39.0 238.8 2.8 35.6 197 3062 04 33 31 04 37 40 J2018+0831 23 11 48 36.3 237.1 2.9 34.5 27 3062 04 37 40 04 38 40 --- 23 12 48 36.2 237.4 2.9 34.6 60 3070 04 37 41 04 38 40 MG2016 23 12 48 38.7 239.2 2.9 35.8 -13 3070 04 38 53 04 42 10 --- 23 16 19 38.2 240.1 2.9 36.2 197 3095 04 38 41 04 42 10 J2018+0831 23 16 19 35.7 238.3 3.0 35.0 -13 3095 04 42 23 04 43 40 --- 23 17 49 35.5 238.6 3.0 35.2 77 3105 04 42 11 04 43 40 MG2016 23 17 49 38.0 240.5 3.0 36.4 -13 3105 04 43 53 04 47 10 --- 23 21 19 37.5 241.4 3.0 36.7 197 3130 04 43 41 04 47 50 J2018+0831 23 22 00 34.9 239.7 3.0 35.6 27 3130 04 47 50 04 48 50 --- 23 23 00 34.8 239.9 3.1 35.7 60 3138 04 47 51 04 48 50 MG2016 23 23 00 37.3 241.8 3.0 36.9 -13 3138 04 49 03 04 52 20 --- 23 26 30 36.7 242.6 3.1 37.2 197 3164 04 48 51 04 52 20 J2018+0831 23 26 30 34.2 240.8 3.1 36.1 -13 3164 04 52 33 04 53 50 --- 23 28 01 34.0 241.1 3.1 36.2 77 3173 04 52 21 04 53 50 MG2016 23 28 01 36.5 243.0 3.1 37.4 -13 3173 04 54 03 04 57 20 --- 23 31 31 36.0 243.8 3.2 37.7 197 3199 04 53 51 04 58 00 J2018+0831 23 32 11 33.4 242.1 3.2 36.6 27 3199 04 58 00 04 59 00 --- 23 33 11 33.3 242.4 3.2 36.7 60 3207 04 58 01 04 59 00 MG2016 23 33 11 35.8 244.2 3.2 37.8 -13 3207 04 59 13 05 02 30 --- 23 36 42 35.2 245.1 3.3 38.1 197 3232 04 59 01 05 02 30 J2018+0831 23 36 42 32.7 243.2 3.3 37.0 -13 3232 05 02 43 05 04 00 --- 23 38 12 32.5 243.5 3.3 37.2 77 3242 05 02 31 05 04 00 MG2016 23 38 12 35.0 245.4 3.3 38.3 -13 3242 05 04 13 05 07 30 --- 23 41 43 34.5 246.2 3.4 38.6 197 3267 05 04 01 05 08 10 J2018+0831 23 42 23 31.9 244.5 3.4 37.5 27 3267 05 08 10 05 09 10 --- 23 43 23 31.7 244.7 3.4 37.6 60 3275 05 08 11 05 09 10 MG2016 23 43 23 34.2 246.6 3.4 38.7 -13 3275 05 09 23 05 12 40 --- 23 46 54 33.7 247.4 3.4 39.0 197 3300 05 09 11 Schedule for VLBA_BR (Code Br ) Page 15 Confirming the first detection of a merging dual SMBH system at high-z 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 30 Oct 2019 Day 303 --- 05 12 40 J2018+0831 23 46 54 31.2 245.5 3.5 37.9 -13 3300 05 12 53 05 14 10 --- 23 48 24 31.0 245.9 3.5 38.0 77 3310 05 12 41 05 14 10 MG2016 23 48 24 33.4 247.8 3.5 39.1 -13 3310 05 14 23 05 17 40 --- 23 51 54 32.9 248.6 3.5 39.4 197 3336 05 14 11 05 18 20 J2018+0831 23 52 35 30.3 246.8 3.6 38.4 27 3336 05 18 20 05 19 20 --- 23 53 35 30.2 247.0 3.6 38.4 60 3343 05 18 21 05 20 00 J2018+0831 23 54 15 30.1 247.2 3.6 38.5 34 3343 05 20 00 05 21 00 --- 23 55 15 29.9 247.4 3.6 38.6 60 3351 05 20 01 05 21 00 MG2016 23 55 15 32.4 249.3 3.6 39.6 -13 3351 05 21 13 05 24 30 --- 23 58 46 31.8 250.1 3.6 39.8 197 3376 05 21 01 05 24 30 J2018+0831 23 58 46 29.4 248.2 3.7 38.8 -13 3376 05 24 43 05 25 30 --- 23 59 46 29.2 248.4 3.7 38.9 47 3383 05 24 31 05 25 30 MG2016 23 59 46 31.7 250.3 3.7 39.9 -13 3383 05 25 43 05 29 00 --- 00 03 16 31.1 251.1 3.7 40.1 197 3408 05 25 31 05 29 00 J2018+0831 00 03 16 28.7 249.2 3.7 39.1 -13 3408 05 29 13 05 30 00 --- 00 04 16 28.5 249.4 3.8 39.2 47 3414 05 29 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess319.C1024glob Matching groups in /home/guest/rmc/SCHED/sched11.5/catalogs/freq_RDBE.dat: vc_d Setup group: 10 Station: VLBA_BR Total bit rate: 1024 Format: VDIF Bits per sample: 2 Sample rate: 64.000 Number of channels: 8 DBE type: RDBE_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 4100.00 Net SB= U U U U U U U U IF SB = U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 2 3 4 5 6 7 8 BBC SB= U U U U U U U U IF = A C A C A C A C VLBA FE= 6cm omit 6cm omit VLBA Synth= 13.6 4.1 13.6 The following frequency sets based on these setups were used. See the crd files for VLBA legacy system setups and pcal detection details. Frequency Set: 16 Setup file default. Used with PCAL = off LO sum= 4860.25 4860.25 4892.25 4892.25 4924.25 4924.25 4956.25 4956.25 BBC fr= 760.25 760.25 792.25 792.25 824.25 824.25 856.25 856.25 Bandwd= 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 VLBA legacy crd files using 4 channels based on RDBE channels: 3 4 5 6 CRD fr= 800.25 800.25 832.25 832.25 CRD bw= 16.00 16.00 16.00 16.00 Matching frequency sets: 16 17 18 19 20 21 22 23 24 26 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) * MG2016 20 16 55.378166 * 20 19 18.092000 20 20 13.506927 0.00 11 17 44.97966 * 11 27 13.00000 11 31 07.98419 0.00 From catalog imbedded in main SCHED input file. * 3C345 16 41 17.606162 * 16 42 58.809900 16 43 36.712857 0.00 39 54 10.81394 * 39 48 36.99300 39 46 42.12824 0.00 From catalog imbedded in main SCHED input file. * J2018+0831 20 15 45.733430 * 20 18 11.311946 20 19 07.828310 0.00 08 22 30.62230 * 08 31 54.54739 08 35 47.07174 0.00 From catalog imbedded in main SCHED input file. 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 MG2016 sess319.C1024glob 1 2 3 4 5 6 7 8 9 10 11 15 + 12.075 581.686 3C345 sess319.C1024glob 1 2 3 4 5 6 7 8 9 10 11 15 + 0.392 14.779 J2018+0831 sess319.C1024glob 1 2 3 4 5 6 7 8 9 10 11 15 + 4.458 200.004 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) MG2016 93.9 3C345 63.5 J2018+0831 92.9 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