COVER INFORMATION Station: VLBA_OV (Code Ov ) 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_OV (Code Ov ) 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 23 38 18.0 92.8 -4.9 -53.5 0 0 20 45 10 20 46 10 --- 15 24 38 18.2 93.0 -4.9 -53.5 60 8 20 45 11 20 46 10 MG2016 15 24 38 19.7 90.3 -4.9 -54.3 -11 8 20 46 21 20 49 40 --- 15 28 08 20.4 90.9 -4.9 -54.3 199 33 20 46 11 20 49 40 J2018+0831 15 28 08 18.9 93.5 -4.8 -53.5 -11 33 20 49 51 20 51 10 --- 15 29 39 19.2 93.8 -4.8 -53.5 79 44 20 49 41 20 51 10 MG2016 15 29 39 20.7 91.1 -4.8 -54.3 -11 44 20 51 21 20 54 40 --- 15 33 09 21.4 91.6 -4.8 -54.3 199 69 20 51 11 20 55 20 J2018+0831 15 33 49 20.0 94.4 -4.8 -53.4 29 69 20 55 20 20 56 20 --- 15 34 50 20.2 94.6 -4.7 -53.4 60 77 20 55 21 20 56 20 MG2016 15 34 50 21.7 91.9 -4.8 -54.3 -11 77 20 56 31 20 59 50 --- 15 38 20 22.4 92.4 -4.7 -54.3 199 103 20 56 21 20 59 50 J2018+0831 15 38 20 20.9 95.1 -4.7 -53.3 -11 103 21 00 01 21 01 20 --- 15 39 50 21.2 95.4 -4.7 -53.3 79 113 20 59 51 21 01 40 J2018+0831 15 40 10 21.3 95.4 -4.6 -53.3 14 113 Stopped 21 07 40 --- 15 46 11 22.5 96.4 -4.5 -53.2 360 113 21 09 10 3C345 15 47 42 78.8 72.6 -0.9 -98.7 -36 113 21 09 46 21 14 10 --- 15 52 43 79.7 71.7 -0.8 -100.3 264 147 21 09 11 21 18 40 J2018+0831 15 57 13 24.7 98.2 -4.4 -52.8 146 147 21 18 40 21 19 40 --- 15 58 13 24.9 98.3 -4.3 -52.8 60 154 21 18 41 21 19 40 MG2016 15 58 13 26.4 95.6 -4.4 -54.0 -11 154 21 19 51 21 23 10 --- 16 01 44 27.1 96.1 -4.3 -53.9 199 180 21 19 41 21 23 10 J2018+0831 16 01 44 25.5 98.9 -4.3 -52.7 -11 180 21 23 21 21 24 40 --- 16 03 14 25.8 99.2 -4.3 -52.6 79 190 21 23 11 21 24 40 MG2016 16 03 14 27.4 96.4 -4.3 -53.9 -11 190 21 24 51 21 28 10 --- 16 06 45 28.1 96.9 -4.2 -53.8 199 216 21 24 41 21 28 50 J2018+0831 16 07 25 26.7 99.9 -4.2 -52.5 29 216 21 28 50 21 29 50 --- 16 08 25 26.9 100.0 -4.2 -52.5 60 224 21 28 51 Schedule for VLBA_OV (Code Ov ) 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 08 25 28.4 97.2 -4.2 -53.7 -11 224 21 30 01 21 33 20 --- 16 11 56 29.1 97.8 -4.1 -53.6 199 249 21 29 51 21 33 20 J2018+0831 16 11 56 27.5 100.6 -4.1 -52.3 -11 249 21 33 31 21 34 50 --- 16 13 26 27.8 100.9 -4.1 -52.3 79 259 21 33 21 21 34 50 MG2016 16 13 26 29.4 98.1 -4.1 -53.6 -11 259 21 35 01 21 38 20 --- 16 16 56 30.1 98.6 -4.1 -53.4 199 285 21 34 51 21 39 00 J2018+0831 16 17 37 28.7 101.6 -4.0 -52.1 29 285 21 39 00 21 40 00 --- 16 18 37 28.9 101.8 -4.0 -52.0 60 293 21 39 01 21 40 00 MG2016 16 18 37 30.4 98.9 -4.0 -53.4 -11 293 21 40 11 21 43 30 --- 16 22 07 31.1 99.5 -4.0 -53.3 199 318 21 40 01 21 43 30 J2018+0831 16 22 07 29.5 102.4 -4.0 -51.9 -11 318 21 43 41 21 45 00 --- 16 23 38 29.8 102.7 -3.9 -51.8 79 329 21 43 31 21 45 00 MG2016 16 23 38 31.4 99.8 -3.9 -53.2 -11 329 21 45 11 21 48 30 --- 16 27 08 32.1 100.4 -3.9 -53.1 199 354 21 45 01 21 49 10 J2018+0831 16 27 48 30.6 103.4 -3.9 -51.6 29 354 21 49 10 21 50 10 --- 16 28 48 30.8 103.6 -3.8 -51.5 60 362 21 49 11 21 50 10 MG2016 16 28 48 32.4 100.7 -3.9 -53.0 -11 362 21 50 21 21 53 40 --- 16 32 19 33.1 101.3 -3.8 -52.8 199 388 21 50 11 21 53 40 J2018+0831 16 32 19 31.5 104.2 -3.8 -51.3 -11 388 21 53 51 21 55 10 --- 16 33 49 31.8 104.5 -3.8 -51.2 79 398 21 53 41 21 55 10 MG2016 16 33 49 33.4 101.6 -3.8 -52.8 -11 398 21 55 21 21 58 40 --- 16 37 20 34.1 102.2 -3.7 -52.6 199 423 21 55 11 21 59 20 J2018+0831 16 38 00 32.6 105.3 -3.7 -51.0 29 423 21 59 20 22 00 20 --- 16 39 00 32.8 105.4 -3.7 -50.9 60 431 21 59 21 22 00 20 MG2016 16 39 00 34.4 102.5 -3.7 -52.5 -11 431 22 00 31 22 03 50 --- 16 42 31 35.1 103.1 -3.6 -52.3 199 457 22 00 21 22 03 50 J2018+0831 16 42 31 33.5 106.1 -3.6 -50.7 -11 457 22 04 01 22 05 20 --- 16 44 01 33.8 106.4 -3.6 -50.6 79 467 22 03 51 22 05 20 MG2016 16 44 01 35.4 103.4 -3.6 -52.2 -11 467 22 05 31 22 08 50 --- 16 47 31 36.0 104.1 -3.5 -52.0 199 493 22 05 21 Schedule for VLBA_OV (Code Ov ) 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 48 12 34.6 107.2 -3.5 -50.3 29 493 22 09 30 22 10 30 --- 16 49 12 34.7 107.4 -3.5 -50.2 60 500 22 09 31 22 10 30 MG2016 16 49 12 36.4 104.4 -3.5 -51.9 -11 500 22 10 41 22 14 00 --- 16 52 42 37.0 105.0 -3.5 -51.7 199 526 22 10 31 22 14 00 J2018+0831 16 52 42 35.4 108.0 -3.4 -50.0 -11 526 22 14 11 22 15 30 --- 16 54 13 35.7 108.3 -3.4 -49.8 79 536 22 14 01 22 15 30 MG2016 16 54 13 37.3 105.3 -3.4 -51.6 -11 536 22 15 41 22 19 00 --- 16 57 43 38.0 106.0 -3.4 -51.4 199 562 22 15 31 22 19 40 J2018+0831 16 58 23 36.5 109.2 -3.3 -49.5 29 562 22 19 40 22 20 40 --- 16 59 23 36.7 109.4 -3.3 -49.4 60 570 22 19 41 22 20 40 MG2016 16 59 23 38.3 106.3 -3.3 -51.2 -11 570 22 20 51 22 24 10 --- 17 02 54 39.0 107.0 -3.3 -51.0 199 595 22 20 41 22 24 10 J2018+0831 17 02 54 37.3 110.1 -3.3 -49.1 -11 595 22 24 21 22 25 40 --- 17 04 24 37.6 110.4 -3.2 -49.0 79 605 22 24 11 22 25 40 MG2016 17 04 24 39.3 107.3 -3.3 -50.9 -11 605 22 25 51 22 29 10 --- 17 07 55 39.9 108.0 -3.2 -50.6 199 631 22 25 41 22 29 50 J2018+0831 17 08 35 38.4 111.2 -3.2 -48.6 29 631 22 29 50 22 30 50 --- 17 09 35 38.6 111.5 -3.2 -48.5 60 639 22 29 51 22 30 50 MG2016 17 09 35 40.3 108.4 -3.2 -50.5 -11 639 22 31 01 22 34 20 --- 17 13 06 40.9 109.1 -3.1 -50.2 199 664 22 30 51 22 34 20 J2018+0831 17 13 06 39.2 112.2 -3.1 -48.2 -11 664 22 34 31 22 35 50 --- 17 14 36 39.5 112.5 -3.1 -48.1 79 674 22 34 21 22 35 50 MG2016 17 14 36 41.2 109.4 -3.1 -50.0 -12 674 22 36 02 22 39 20 --- 17 18 07 41.9 110.1 -3.0 -49.7 198 700 22 35 51 22 40 00 J2018+0831 17 18 47 40.3 113.4 -3.0 -47.6 29 700 22 40 00 22 41 00 --- 17 19 47 40.4 113.6 -3.0 -47.5 60 708 22 40 01 22 41 00 MG2016 17 19 47 42.2 110.5 -3.0 -49.6 -12 708 22 41 12 22 44 30 --- 17 23 17 42.8 111.2 -2.9 -49.2 198 733 22 41 01 22 44 30 J2018+0831 17 23 17 41.1 114.4 -2.9 -47.2 -12 733 22 44 42 22 46 00 --- 17 24 48 41.4 114.8 -2.9 -47.0 78 743 22 44 31 Schedule for VLBA_OV (Code Ov ) 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 24 48 43.1 111.6 -2.9 -49.1 -12 743 22 46 12 22 49 30 --- 17 28 18 43.8 112.4 -2.9 -48.7 198 769 22 46 01 22 50 10 J2018+0831 17 28 58 42.1 115.7 -2.8 -46.5 28 769 22 50 10 22 51 10 --- 17 29 58 42.3 115.9 -2.8 -46.4 60 777 22 50 11 22 51 10 MG2016 17 29 58 44.1 112.7 -2.8 -48.5 -12 777 22 51 22 22 54 40 --- 17 33 29 44.7 113.5 -2.8 -48.2 198 802 22 51 11 22 54 40 J2018+0831 17 33 29 42.9 116.7 -2.8 -46.0 -12 802 22 54 52 22 56 10 --- 17 34 59 43.2 117.1 -2.7 -45.8 78 812 22 54 41 22 56 10 MG2016 17 34 59 45.0 113.9 -2.8 -48.0 -12 812 22 56 22 22 59 40 --- 17 38 30 45.6 114.7 -2.7 -47.6 198 838 22 56 11 23 00 20 J2018+0831 17 39 10 43.9 118.1 -2.7 -45.3 28 838 23 00 20 23 01 20 --- 17 40 10 44.1 118.3 -2.6 -45.1 60 845 23 00 21 23 01 20 MG2016 17 40 10 45.9 115.1 -2.7 -47.4 -12 845 23 01 32 23 04 50 --- 17 43 41 46.5 115.9 -2.6 -46.9 198 871 23 01 21 23 04 50 J2018+0831 17 43 41 44.7 119.2 -2.6 -44.7 -12 871 23 05 02 23 06 20 --- 17 45 11 45.0 119.6 -2.6 -44.5 78 881 23 04 51 23 06 20 MG2016 17 45 11 46.8 116.3 -2.6 -46.8 -12 881 23 06 32 23 09 50 --- 17 48 42 47.4 117.2 -2.5 -46.3 198 906 23 06 21 23 10 30 J2018+0831 17 49 22 45.7 120.6 -2.5 -43.9 28 906 23 10 30 23 11 30 --- 17 50 22 45.9 120.9 -2.5 -43.7 60 914 23 10 31 23 11 30 MG2016 17 50 22 47.7 117.6 -2.5 -46.1 -12 914 23 11 42 23 15 00 --- 17 53 52 48.4 118.5 -2.4 -45.6 198 940 23 11 31 23 15 00 J2018+0831 17 53 52 46.5 121.8 -2.4 -43.2 -12 940 23 15 12 23 16 30 --- 17 55 23 46.7 122.2 -2.4 -43.0 78 950 23 15 01 23 16 30 MG2016 17 55 23 48.6 118.9 -2.4 -45.4 -12 950 23 16 42 23 20 00 --- 17 58 53 49.2 119.8 -2.4 -44.8 198 975 23 16 31 23 20 40 J2018+0831 17 59 33 47.4 123.3 -2.3 -42.3 28 975 23 20 40 23 21 40 --- 18 00 33 47.6 123.6 -2.3 -42.1 60 983 23 20 41 23 21 40 MG2016 18 00 33 49.5 120.3 -2.3 -44.6 -12 983 23 21 52 23 25 10 --- 18 04 04 50.1 121.2 -2.3 -44.0 198 1008 23 21 41 Schedule for VLBA_OV (Code Ov ) 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 18 04 04 48.1 124.5 -2.3 -41.5 -12 1008 23 25 22 23 26 40 --- 18 05 34 48.4 125.0 -2.2 -41.3 78 1018 23 25 11 23 26 40 MG2016 18 05 34 50.4 121.6 -2.2 -43.8 -12 1018 23 26 52 23 30 10 --- 18 09 05 51.0 122.6 -2.2 -43.2 198 1044 23 26 41 23 30 50 J2018+0831 18 09 45 49.1 126.1 -2.2 -40.6 28 1044 23 30 50 23 31 50 --- 18 10 45 49.2 126.4 -2.1 -40.4 60 1052 23 30 51 23 31 50 MG2016 18 10 45 51.2 123.1 -2.2 -42.9 -12 1052 23 32 02 23 35 20 --- 18 14 16 51.8 124.1 -2.1 -42.3 198 1077 23 31 51 23 35 20 J2018+0831 18 14 16 49.8 127.5 -2.1 -39.7 -12 1077 23 35 32 23 36 50 --- 18 15 46 50.0 127.9 -2.1 -39.4 78 1087 23 35 21 23 36 50 MG2016 18 15 46 52.1 124.5 -2.1 -42.0 -12 1087 23 37 02 23 40 20 --- 18 19 17 52.6 125.6 -2.0 -41.4 198 1113 23 36 51 23 41 00 J2018+0831 18 19 57 50.7 129.2 -2.0 -38.6 28 1113 23 41 00 23 42 00 --- 18 20 57 50.8 129.5 -2.0 -38.4 60 1120 23 41 01 23 42 00 MG2016 18 20 57 52.9 126.1 -2.0 -41.0 -12 1120 23 42 12 23 45 30 --- 18 24 27 53.5 127.2 -1.9 -40.3 198 1146 23 42 01 23 45 30 J2018+0831 18 24 27 51.4 130.6 -1.9 -37.7 -12 1146 23 45 42 23 47 00 --- 18 25 58 51.6 131.0 -1.9 -37.4 78 1156 23 45 31 23 47 00 MG2016 18 25 58 53.7 127.7 -1.9 -40.0 -12 1156 23 47 12 23 50 30 --- 18 29 28 54.3 128.8 -1.8 -39.3 198 1182 23 47 01 23 51 10 J2018+0831 18 30 08 52.2 132.4 -1.8 -36.5 28 1182 23 51 10 23 52 10 --- 18 31 08 52.4 132.7 -1.8 -36.3 60 1189 23 51 11 23 52 10 MG2016 18 31 08 54.5 129.3 -1.8 -38.9 -12 1189 23 52 22 23 55 40 --- 18 34 39 55.1 130.5 -1.8 -38.2 198 1215 23 52 11 23 55 40 J2018+0831 18 34 39 52.9 133.8 -1.7 -35.5 -12 1215 23 55 52 23 57 10 --- 18 36 09 53.1 134.4 -1.7 -35.2 78 1225 23 55 41 --- Start: Tue 29 Oct 2019 Day 302 -- Stop: Wed 30 Oct 2019 Day 303 --- 23 57 10 MG2016 18 36 09 55.3 131.0 -1.7 -37.8 -13 1225 23 57 23 00 00 40 --- 18 39 40 55.8 132.2 -1.7 -37.0 197 1250 23 57 11 Schedule for VLBA_OV (Code Ov ) 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 40 20 53.7 135.8 -1.6 -34.2 27 1250 00 01 20 00 02 20 --- 18 41 20 53.8 136.1 -1.6 -33.9 60 1258 00 01 21 00 02 20 MG2016 18 41 20 56.0 132.8 -1.6 -36.6 -13 1258 00 02 33 00 05 50 --- 18 44 51 56.6 134.1 -1.6 -35.7 197 1283 00 02 21 00 05 50 J2018+0831 18 44 51 54.3 137.4 -1.6 -33.1 -13 1283 00 06 03 00 07 20 --- 18 46 21 54.5 137.9 -1.5 -32.7 77 1293 00 05 51 00 07 20 MG2016 18 46 21 56.8 134.6 -1.6 -35.3 -13 1293 00 07 33 00 10 50 --- 18 49 52 57.3 135.9 -1.5 -34.4 197 1319 00 07 21 00 11 30 J2018+0831 18 50 32 55.0 139.4 -1.5 -31.6 27 1319 00 11 30 00 12 30 --- 18 51 32 55.2 139.8 -1.5 -31.3 60 1326 00 11 31 00 12 30 MG2016 18 51 32 57.5 136.5 -1.5 -34.0 -13 1326 00 12 43 00 16 00 --- 18 55 02 58.0 137.9 -1.4 -33.0 197 1352 00 12 31 00 16 00 J2018+0831 18 55 02 55.6 141.1 -1.4 -30.4 -13 1352 00 16 13 00 17 30 --- 18 56 33 55.8 141.7 -1.4 -30.0 77 1362 00 16 01 00 17 30 MG2016 18 56 33 58.2 138.5 -1.4 -32.6 -13 1362 00 17 43 00 21 00 --- 19 00 03 58.6 139.8 -1.3 -31.6 197 1387 00 17 31 00 21 40 J2018+0831 19 00 43 56.3 143.3 -1.3 -28.8 27 1387 00 21 40 00 22 40 --- 19 01 43 56.4 143.7 -1.3 -28.5 60 1395 00 21 41 00 22 40 MG2016 19 01 43 58.8 140.5 -1.3 -31.1 -13 1395 00 22 53 00 26 10 --- 19 05 14 59.3 142.0 -1.2 -30.1 197 1420 00 22 41 00 26 10 J2018+0831 19 05 14 56.8 145.1 -1.2 -27.5 -13 1420 00 26 23 00 27 40 --- 19 06 44 57.0 145.7 -1.2 -27.0 77 1430 00 26 11 00 27 40 MG2016 19 06 44 59.5 142.6 -1.2 -29.6 -13 1430 00 27 53 00 31 10 --- 19 10 15 59.9 144.1 -1.2 -28.5 197 1455 00 27 41 00 31 50 J2018+0831 19 10 55 57.5 147.4 -1.1 -25.7 27 1455 00 31 50 00 32 50 --- 19 11 55 57.6 147.8 -1.1 -25.4 60 1463 00 31 51 00 32 50 MG2016 19 11 55 60.1 144.8 -1.1 -27.9 -13 1463 00 33 03 00 36 20 --- 19 15 26 60.5 146.3 -1.1 -26.8 197 1489 00 32 51 00 36 20 J2018+0831 19 15 26 57.9 149.3 -1.1 -24.3 -13 1489 00 36 33 00 37 50 --- 19 16 56 58.1 149.9 -1.0 -23.8 77 1498 00 36 21 Schedule for VLBA_OV (Code Ov ) 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 16 56 60.6 147.0 -1.1 -26.3 -13 1498 00 38 03 00 41 20 --- 19 20 27 61.0 148.6 -1.0 -25.1 197 1524 00 37 51 00 42 00 J2018+0831 19 21 07 58.5 151.7 -1.0 -22.4 27 1524 00 42 00 00 43 00 --- 19 22 07 58.6 152.2 -1.0 -22.1 60 1532 00 42 01 00 44 30 3C345 19 23 37 58.9 287.2 2.7 81.7 -14 1532 00 44 44 00 49 30 --- 19 28 38 57.9 287.5 2.8 81.1 286 1568 00 44 31 00 54 00 J2018+0831 19 33 09 59.5 157.1 -0.8 -18.2 169 1568 00 54 00 00 55 00 --- 19 34 09 59.6 157.6 -0.7 -17.9 60 1576 00 54 01 00 55 00 MG2016 19 34 09 62.3 155.1 -0.8 -20.0 -14 1576 00 55 14 00 58 30 --- 19 37 39 62.6 156.9 -0.7 -18.6 196 1601 00 55 01 00 58 30 J2018+0831 19 37 39 59.9 159.2 -0.7 -16.6 -14 1601 00 58 44 01 00 00 --- 19 39 10 60.0 160.0 -0.7 -16.0 76 1611 00 58 31 01 00 00 MG2016 19 39 10 62.7 157.6 -0.7 -18.0 -14 1611 01 00 14 01 03 30 --- 19 42 40 62.9 159.4 -0.6 -16.6 196 1636 01 00 01 01 04 10 J2018+0831 19 43 20 60.2 162.0 -0.6 -14.4 26 1636 01 04 10 01 05 10 --- 19 44 20 60.3 162.4 -0.6 -14.1 60 1644 01 04 11 01 05 10 MG2016 19 44 20 63.1 160.3 -0.6 -15.9 -14 1644 01 05 24 01 08 40 --- 19 47 51 63.3 162.1 -0.5 -14.4 196 1669 01 05 11 01 08 40 J2018+0831 19 47 51 60.5 164.1 -0.5 -12.7 -14 1669 01 08 54 01 10 10 --- 19 49 21 60.6 164.9 -0.5 -12.1 76 1679 01 08 41 01 10 10 MG2016 19 49 21 63.4 162.9 -0.5 -13.8 -14 1679 01 10 24 01 13 40 --- 19 52 52 63.6 164.8 -0.5 -12.3 196 1704 01 10 11 01 14 20 J2018+0831 19 53 32 60.8 167.0 -0.4 -10.5 26 1704 01 14 20 01 15 20 --- 19 54 32 60.8 167.5 -0.4 -10.1 60 1712 01 14 21 01 15 20 MG2016 19 54 32 63.6 165.7 -0.4 -11.6 -14 1712 01 15 34 01 18 50 --- 19 58 03 63.8 167.6 -0.4 -10.0 196 1737 01 15 21 01 18 50 J2018+0831 19 58 03 61.0 169.2 -0.4 -8.7 -14 1737 01 19 04 01 20 20 --- 19 59 33 61.0 170.0 -0.3 -8.1 76 1747 01 18 51 01 20 20 MG2016 19 59 33 63.9 168.4 -0.3 -9.4 -14 1747 01 20 34 01 23 50 --- 20 03 04 64.0 170.4 -0.3 -7.8 196 1772 01 20 21 Schedule for VLBA_OV (Code Ov ) 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 20 03 44 61.2 172.1 -0.3 -6.4 26 1772 01 24 30 01 25 30 --- 20 04 44 61.2 172.6 -0.2 -6.0 60 1780 01 24 31 01 25 30 MG2016 20 04 44 64.1 171.3 -0.3 -7.1 -14 1780 01 25 44 01 29 00 --- 20 08 14 64.1 173.3 -0.2 -5.5 196 1805 01 25 31 01 29 00 J2018+0831 20 08 14 61.3 174.4 -0.2 -4.5 -14 1805 01 29 14 01 30 30 --- 20 09 45 61.3 175.2 -0.2 -3.9 76 1815 01 29 01 01 30 30 MG2016 20 09 45 64.2 174.1 -0.2 -4.8 -14 1815 01 30 44 01 34 00 --- 20 13 15 64.2 176.1 -0.1 -3.2 196 1840 01 30 31 01 34 40 J2018+0831 20 13 55 61.3 177.3 -0.1 -2.2 26 1840 01 34 40 01 35 40 --- 20 14 55 61.3 177.8 -0.1 -1.7 60 1848 01 34 41 01 35 40 MG2016 20 14 55 64.3 177.0 -0.1 -2.4 -14 1848 01 35 54 01 39 10 --- 20 18 26 64.3 179.0 -0.0 -0.8 196 1873 01 35 41 01 39 10 J2018+0831 20 18 26 61.4 179.6 -0.0 -0.3 -14 1873 01 39 24 01 40 40 --- 20 19 56 61.4 180.4 0.0 0.3 76 1883 01 39 11 01 40 40 MG2016 20 19 56 64.3 179.8 -0.0 -0.1 -14 1883 01 40 54 01 44 10 --- 20 23 27 64.3 181.8 0.1 1.5 196 1908 01 40 41 01 44 50 J2018+0831 20 24 07 61.3 182.6 0.1 2.1 26 1908 01 44 50 01 45 50 --- 20 25 07 61.3 183.1 0.1 2.5 60 1916 01 44 51 01 45 50 MG2016 20 25 07 64.3 182.8 0.1 2.2 -14 1916 01 46 04 01 49 20 --- 20 28 38 64.2 184.7 0.1 3.8 196 1941 01 45 51 01 49 20 J2018+0831 20 28 38 61.3 184.9 0.2 3.9 -14 1941 01 49 34 01 50 50 --- 20 30 08 61.3 185.7 0.2 4.6 76 1951 01 49 21 01 50 50 MG2016 20 30 08 64.2 185.6 0.2 4.5 -14 1951 01 51 04 01 54 20 --- 20 33 39 64.1 187.5 0.2 6.1 196 1976 01 50 51 01 55 00 J2018+0831 20 34 19 61.2 187.8 0.3 6.3 26 1976 01 55 00 01 56 00 --- 20 35 19 61.1 188.3 0.3 6.7 60 1984 01 55 01 01 56 00 MG2016 20 35 19 64.1 188.5 0.3 6.9 -14 1984 01 56 14 01 59 30 --- 20 38 49 64.0 190.4 0.3 8.5 196 2009 01 56 01 01 59 30 J2018+0831 20 38 49 61.0 190.1 0.3 8.1 -14 2009 01 59 44 02 01 00 --- 20 40 20 61.0 190.8 0.4 8.7 76 2019 01 59 31 Schedule for VLBA_OV (Code Ov ) 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 40 20 63.9 191.2 0.3 9.1 -14 2019 02 01 14 02 04 30 --- 20 43 50 63.7 193.2 0.4 10.7 196 2044 02 01 01 02 05 10 J2018+0831 20 44 30 60.8 192.9 0.4 10.4 26 2044 02 05 10 02 06 10 --- 20 45 30 60.7 193.4 0.4 10.8 60 2052 02 05 11 02 06 10 MG2016 20 45 30 63.7 194.1 0.4 11.4 -14 2052 02 06 24 02 09 40 --- 20 49 01 63.5 196.0 0.5 12.9 196 2077 02 06 11 02 09 40 J2018+0831 20 49 01 60.6 195.2 0.5 12.2 -14 2077 02 09 54 02 11 10 --- 20 50 31 60.5 195.9 0.5 12.8 76 2087 02 09 41 02 11 10 MG2016 20 50 31 63.4 196.8 0.5 13.6 -14 2087 02 11 24 02 14 40 --- 20 54 02 63.2 198.6 0.6 15.0 196 2113 02 11 11 02 15 20 J2018+0831 20 54 42 60.3 197.9 0.6 14.4 26 2113 02 15 20 02 16 20 --- 20 55 42 60.2 198.4 0.6 14.7 60 2120 02 15 21 02 16 20 MG2016 20 55 42 63.1 199.5 0.6 15.7 -14 2120 02 16 34 02 19 50 --- 20 59 13 62.8 201.3 0.6 17.2 196 2145 02 16 21 02 19 50 J2018+0831 20 59 13 60.0 200.1 0.7 16.1 -14 2145 02 20 04 02 21 20 --- 21 00 43 59.9 200.8 0.7 16.6 76 2155 02 19 51 02 21 20 MG2016 21 00 43 62.7 202.1 0.7 17.8 -14 2155 02 21 34 02 24 50 --- 21 04 14 62.5 203.8 0.7 19.2 196 2181 02 21 21 02 25 30 J2018+0831 21 04 54 59.5 202.8 0.8 18.2 26 2181 02 25 30 02 26 30 --- 21 05 54 59.5 203.2 0.8 18.5 60 2188 02 25 31 02 26 30 MG2016 21 05 54 62.3 204.7 0.8 19.8 -14 2188 02 26 44 02 30 00 --- 21 09 24 62.0 206.4 0.8 21.2 196 2214 02 26 31 02 30 00 J2018+0831 21 09 24 59.2 204.8 0.8 19.8 -14 2214 02 30 14 02 31 30 --- 21 10 55 59.1 205.5 0.9 20.3 76 2223 02 30 01 02 31 30 MG2016 21 10 55 61.9 207.1 0.8 21.8 -14 2223 02 31 44 02 35 00 --- 21 14 25 61.6 208.8 0.9 23.1 196 2249 02 31 31 02 35 40 J2018+0831 21 15 05 58.7 207.4 0.9 21.7 26 2249 02 35 40 02 36 40 --- 21 16 05 58.6 207.8 0.9 22.1 60 2256 02 35 41 02 36 40 MG2016 21 16 05 61.4 209.6 0.9 23.7 -14 2256 02 36 54 02 40 10 --- 21 19 36 61.0 211.2 1.0 24.9 196 2282 02 36 41 Schedule for VLBA_OV (Code Ov ) 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 19 36 58.3 209.4 1.0 23.2 -14 2282 02 40 24 02 41 40 --- 21 21 06 58.1 210.0 1.0 23.7 76 2291 02 40 11 02 41 40 MG2016 21 21 06 60.9 211.9 1.0 25.4 -14 2291 02 41 54 02 45 10 --- 21 24 37 60.5 213.5 1.1 26.6 196 2317 02 41 41 02 45 50 J2018+0831 21 25 17 57.7 211.8 1.1 25.1 26 2317 02 45 50 02 46 50 --- 21 26 17 57.6 212.2 1.1 25.4 60 2324 02 45 51 02 46 50 MG2016 21 26 17 60.3 214.2 1.1 27.2 -14 2324 02 47 04 02 50 20 --- 21 29 48 59.9 215.8 1.2 28.3 196 2350 02 46 51 02 50 20 J2018+0831 21 29 48 57.2 213.6 1.2 26.5 -14 2350 02 50 34 02 51 50 --- 21 31 18 57.0 214.2 1.2 26.9 76 2359 02 50 21 02 51 50 MG2016 21 31 18 59.7 216.4 1.2 28.8 -14 2359 02 52 04 02 55 20 --- 21 34 49 59.3 217.9 1.2 29.9 196 2385 02 51 51 02 56 00 J2018+0831 21 35 29 56.6 215.9 1.3 28.2 26 2385 02 56 00 02 57 00 --- 21 36 29 56.4 216.3 1.3 28.5 60 2392 02 56 01 02 57 00 MG2016 21 36 29 59.1 218.6 1.3 30.4 -13 2392 02 57 13 03 00 30 --- 21 39 59 58.7 220.0 1.3 31.5 197 2418 02 57 01 03 00 30 J2018+0831 21 39 59 56.0 217.7 1.3 29.5 -13 2418 03 00 43 03 02 00 --- 21 41 30 55.8 218.3 1.4 29.9 77 2428 03 00 31 03 02 00 MG2016 21 41 30 58.5 220.6 1.4 31.9 -13 2428 03 02 13 03 05 30 --- 21 45 00 58.0 222.0 1.4 32.9 197 2453 03 02 01 03 06 10 J2018+0831 21 45 40 55.3 219.8 1.4 31.0 27 2453 03 06 10 03 07 10 --- 21 46 41 55.2 220.2 1.5 31.3 60 2461 03 06 11 03 07 10 MG2016 21 46 41 57.8 222.6 1.4 33.4 -13 2461 03 07 23 03 10 40 --- 21 50 11 57.3 224.0 1.5 34.3 197 2486 03 07 11 03 10 40 J2018+0831 21 50 11 54.7 221.5 1.5 32.2 -13 2486 03 10 53 03 12 10 --- 21 51 41 54.5 222.0 1.5 32.6 77 2496 03 10 41 03 12 10 MG2016 21 51 41 57.1 224.5 1.5 34.7 -13 2496 03 12 23 03 15 40 --- 21 55 12 56.6 225.8 1.6 35.6 197 2521 03 12 11 03 16 20 J2018+0831 21 55 52 54.0 223.5 1.6 33.7 27 2521 03 16 20 03 17 20 --- 21 56 52 53.8 223.9 1.6 33.9 60 2529 03 16 21 Schedule for VLBA_OV (Code Ov ) 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 56 52 56.4 226.4 1.6 36.0 -13 2529 03 17 33 03 20 50 --- 22 00 23 55.9 227.6 1.7 36.9 197 2554 03 17 21 03 20 50 J2018+0831 22 00 23 53.3 225.1 1.7 34.8 -13 2554 03 21 03 03 22 20 --- 22 01 53 53.1 225.6 1.7 35.1 77 2564 03 20 51 03 22 20 MG2016 22 01 53 55.6 228.2 1.7 37.3 -13 2564 03 22 33 03 25 50 --- 22 05 24 55.1 229.4 1.8 38.1 197 2590 03 22 21 03 26 30 J2018+0831 22 06 04 52.5 227.0 1.8 36.1 27 2590 03 26 30 03 27 30 --- 22 07 04 52.4 227.3 1.8 36.3 60 2598 03 26 31 03 27 30 MG2016 22 07 04 54.9 229.9 1.8 38.4 -13 2598 03 27 43 03 31 00 --- 22 10 34 54.3 231.1 1.8 39.2 197 2623 03 27 31 03 31 00 J2018+0831 22 10 34 51.9 228.4 1.9 37.0 -13 2623 03 31 13 03 32 30 --- 22 12 05 51.6 228.9 1.9 37.4 77 2633 03 31 01 03 32 30 MG2016 22 12 05 54.1 231.6 1.9 39.5 -13 2633 03 32 43 03 36 00 --- 22 15 35 53.5 232.7 1.9 40.3 197 2658 03 32 31 03 36 40 J2018+0831 22 16 15 51.0 230.2 2.0 38.2 27 2658 03 36 40 03 37 40 --- 22 17 16 50.8 230.5 2.0 38.4 60 2666 03 36 41 03 37 40 MG2016 22 17 16 53.3 233.2 2.0 40.6 -13 2666 03 37 53 03 41 10 --- 22 20 46 52.7 234.3 2.0 41.3 197 2691 03 37 41 03 41 10 J2018+0831 22 20 46 50.3 231.6 2.0 39.1 -13 2691 03 41 23 03 42 40 --- 22 22 16 50.1 232.0 2.1 39.4 77 2701 03 41 11 03 42 40 MG2016 22 22 16 52.5 234.7 2.0 41.6 -13 2701 03 42 53 03 46 10 --- 22 25 47 51.9 235.8 2.1 42.2 197 2727 03 42 41 03 46 50 J2018+0831 22 26 27 49.4 233.3 2.1 40.2 27 2727 03 46 50 03 47 50 --- 22 27 27 49.2 233.5 2.1 40.4 60 2734 03 46 51 03 47 50 MG2016 22 27 27 51.6 236.3 2.1 42.5 -13 2734 03 48 03 03 51 20 --- 22 30 58 51.0 237.3 2.2 43.1 197 2760 03 47 51 03 51 20 J2018+0831 22 30 58 48.7 234.6 2.2 41.0 -13 2760 03 51 33 03 52 50 --- 22 32 28 48.4 235.0 2.2 41.3 77 2770 03 51 21 03 52 50 MG2016 22 32 28 50.8 237.7 2.2 43.4 -13 2770 03 53 03 03 56 20 --- 22 35 59 50.2 238.7 2.3 44.0 197 2795 03 52 51 Schedule for VLBA_OV (Code Ov ) 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 36 39 47.7 236.1 2.3 42.0 27 2795 03 57 00 03 58 00 --- 22 37 39 47.6 236.4 2.3 42.1 60 2803 03 57 01 03 58 00 MG2016 22 37 39 49.9 239.1 2.3 44.2 -13 2803 03 58 13 04 01 30 --- 22 41 09 49.3 240.1 2.3 44.8 197 2828 03 58 01 04 01 30 J2018+0831 22 41 09 47.0 237.3 2.4 42.7 -13 2828 04 01 43 04 03 00 --- 22 42 40 46.7 237.7 2.4 42.9 77 2838 04 01 31 04 03 00 MG2016 22 42 40 49.0 240.5 2.4 45.0 -13 2838 04 03 13 04 06 30 --- 22 46 10 48.4 241.4 2.4 45.5 197 2863 04 03 01 04 07 10 J2018+0831 22 46 50 46.0 238.8 2.5 43.6 27 2863 04 07 10 04 08 10 --- 22 47 51 45.9 239.1 2.5 43.7 60 2871 04 07 11 04 08 10 MG2016 22 47 51 48.1 241.8 2.5 45.8 -13 2871 04 08 23 04 11 40 --- 22 51 21 47.5 242.7 2.5 46.2 197 2897 04 08 11 04 11 40 J2018+0831 22 51 21 45.3 240.0 2.5 44.2 -13 2897 04 11 53 04 13 10 --- 22 52 51 45.0 240.4 2.6 44.4 77 2906 04 11 41 04 13 10 MG2016 22 52 51 47.2 243.1 2.5 46.4 -13 2906 04 13 23 04 16 40 --- 22 56 22 46.6 244.0 2.6 46.9 197 2932 04 13 11 04 17 20 J2018+0831 22 57 02 44.3 241.4 2.6 45.0 27 2932 04 17 20 04 18 20 --- 22 58 02 44.1 241.6 2.6 45.1 60 2940 04 17 21 04 18 20 MG2016 22 58 02 46.3 244.4 2.6 47.1 -13 2940 04 18 33 04 21 50 --- 23 01 33 45.7 245.2 2.7 47.5 197 2965 04 18 21 04 21 50 J2018+0831 23 01 33 43.5 242.5 2.7 45.6 -13 2965 04 22 03 04 23 20 --- 23 03 03 43.2 242.8 2.7 45.8 77 2975 04 21 51 04 23 20 MG2016 23 03 03 45.4 245.6 2.7 47.7 -12 2975 04 23 32 04 26 50 --- 23 06 34 44.8 246.4 2.8 48.1 198 3000 04 23 21 04 27 30 J2018+0831 23 07 14 42.5 243.8 2.8 46.3 27 3000 04 27 30 04 28 30 --- 23 08 14 42.3 244.1 2.8 46.4 60 3008 04 27 31 04 28 30 MG2016 23 08 14 44.5 246.8 2.8 48.3 -12 3008 04 28 42 04 32 00 --- 23 11 44 43.8 247.6 2.9 48.7 198 3034 04 28 31 04 32 00 J2018+0831 23 11 44 41.7 244.9 2.9 46.8 -12 3034 04 32 12 04 33 30 --- 23 13 15 41.4 245.2 2.9 47.0 78 3044 04 32 01 Schedule for VLBA_OV (Code Ov ) 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 13 15 43.6 247.9 2.9 48.8 -12 3044 04 33 42 04 37 00 --- 23 16 45 42.9 248.7 2.9 49.2 198 3069 04 33 31 04 37 40 J2018+0831 23 17 25 40.6 246.1 3.0 47.4 28 3069 04 37 40 04 38 40 --- 23 18 26 40.5 246.3 3.0 47.5 60 3077 04 37 41 04 38 40 MG2016 23 18 26 42.6 249.0 3.0 49.4 -12 3077 04 38 52 04 42 10 --- 23 21 56 41.9 249.8 3.0 49.7 198 3102 04 38 41 04 42 10 J2018+0831 23 21 56 39.8 247.1 3.0 47.9 -12 3102 04 42 22 04 43 40 --- 23 23 26 39.5 247.4 3.1 48.0 78 3112 04 42 11 04 43 40 MG2016 23 23 26 41.7 250.1 3.1 49.8 -12 3112 04 43 52 04 47 10 --- 23 26 57 41.0 250.8 3.1 50.1 198 3138 04 43 41 04 47 50 J2018+0831 23 27 37 38.8 248.3 3.1 48.4 28 3138 04 47 50 04 48 50 --- 23 28 37 38.6 248.5 3.2 48.5 60 3146 04 47 51 04 48 50 MG2016 23 28 37 40.7 251.2 3.1 50.3 -12 3146 04 49 02 04 52 20 --- 23 32 08 40.0 251.9 3.2 50.6 198 3171 04 48 51 04 52 20 J2018+0831 23 32 08 37.9 249.3 3.2 48.9 -12 3171 04 52 32 04 53 50 --- 23 33 38 37.6 249.6 3.2 49.0 78 3181 04 52 21 04 53 50 MG2016 23 33 38 39.7 252.2 3.2 50.7 -12 3181 04 54 02 04 57 20 --- 23 37 09 39.1 252.9 3.3 51.0 198 3207 04 53 51 04 58 00 J2018+0831 23 37 49 36.9 250.4 3.3 49.3 28 3207 04 58 00 04 59 00 --- 23 38 49 36.7 250.6 3.3 49.4 60 3214 04 58 01 04 59 00 MG2016 23 38 49 38.8 253.2 3.3 51.1 -12 3214 04 59 12 05 02 30 --- 23 42 19 38.1 253.9 3.4 51.3 198 3240 04 59 01 05 02 30 J2018+0831 23 42 19 36.0 251.3 3.4 49.7 -12 3240 05 02 42 05 04 00 --- 23 43 50 35.7 251.6 3.4 49.8 78 3250 05 02 31 05 04 00 MG2016 23 43 50 37.8 254.2 3.4 51.4 -12 3250 05 04 12 05 07 30 --- 23 47 20 37.1 254.9 3.5 51.7 198 3275 05 04 01 05 08 10 J2018+0831 23 48 00 34.9 252.4 3.5 50.1 28 3275 05 08 10 05 09 10 --- 23 49 01 34.8 252.6 3.5 50.2 60 3283 05 08 11 05 09 10 MG2016 23 49 01 36.8 255.2 3.5 51.8 -12 3283 05 09 22 05 12 40 --- 23 52 31 36.1 255.9 3.5 52.0 198 3309 05 09 11 Schedule for VLBA_OV (Code Ov ) 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 52 31 34.1 253.3 3.6 50.5 -12 3309 05 12 52 05 14 10 --- 23 54 01 33.8 253.6 3.6 50.6 78 3319 05 12 41 05 14 10 MG2016 23 54 01 35.8 256.2 3.6 52.1 -12 3319 05 14 22 05 17 40 --- 23 57 32 35.2 256.8 3.6 52.3 198 3344 05 14 11 05 18 20 J2018+0831 23 58 12 33.0 254.4 3.7 50.8 28 3344 05 18 20 05 19 20 --- 23 59 12 32.8 254.5 3.7 50.9 60 3352 05 18 21 05 20 00 J2018+0831 23 59 52 32.7 254.7 3.7 50.9 34 3352 05 20 00 05 21 00 --- 00 00 52 32.5 254.9 3.7 51.0 60 3360 05 20 01 05 21 00 MG2016 00 00 52 34.5 257.4 3.7 52.5 -12 3360 05 21 12 05 24 30 --- 00 04 23 33.8 258.0 3.7 52.6 198 3385 05 21 01 05 24 30 J2018+0831 00 04 23 31.8 255.5 3.8 51.2 -12 3385 05 24 42 05 25 30 --- 00 05 23 31.6 255.7 3.8 51.3 48 3391 05 24 31 05 25 30 MG2016 00 05 23 33.6 258.2 3.8 52.7 -12 3391 05 25 42 05 29 00 --- 00 08 54 32.9 258.8 3.8 52.9 198 3417 05 25 31 05 29 00 J2018+0831 00 08 54 30.9 256.3 3.8 51.5 -12 3417 05 29 12 05 30 00 --- 00 09 54 30.7 256.5 3.8 51.5 48 3423 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: 9 Station: VLBA_OV 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