COVER INFORMATION Station: VLBA_FD (Code Fd ) 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_FD (Code Fd ) 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 16 20 57 30.5 98.5 -4.0 -59.4 0 0 20 45 10 20 46 10 --- 16 21 58 30.7 98.6 -4.0 -59.4 60 8 20 45 11 20 46 10 MG2016 16 21 58 31.9 95.5 -4.0 -60.9 -10 8 20 46 20 20 49 40 --- 16 25 28 32.7 96.0 -3.9 -60.8 200 33 20 46 11 20 49 40 J2018+0831 16 25 28 31.5 99.1 -3.9 -59.2 -10 33 20 49 50 20 51 10 --- 16 26 58 31.8 99.3 -3.9 -59.2 80 44 20 49 41 20 51 10 MG2016 16 26 58 33.0 96.2 -3.9 -60.8 -10 44 20 51 20 20 54 40 --- 16 30 29 33.7 96.7 -3.8 -60.7 200 70 20 51 11 20 55 20 J2018+0831 16 31 09 32.7 100.0 -3.8 -59.0 30 70 20 55 20 20 56 20 --- 16 32 09 32.9 100.1 -3.8 -58.9 60 77 20 55 21 20 56 20 MG2016 16 32 09 34.1 96.9 -3.8 -60.7 -10 77 20 56 30 20 59 50 --- 16 35 40 34.9 97.4 -3.7 -60.5 200 103 20 56 21 20 59 50 J2018+0831 16 35 40 33.6 100.7 -3.7 -58.8 -10 103 21 00 00 21 01 20 --- 16 37 10 33.9 100.9 -3.7 -58.7 80 113 20 59 51 21 01 40 J2018+0831 16 37 30 34.0 100.9 -3.7 -58.7 14 113 Stopped 21 07 40 --- 16 43 31 35.3 101.9 -3.6 -58.4 360 113 21 09 10 3C345 16 45 01 80.9 -1.7 0.0 178.1 -8 113 21 09 18 21 14 10 --- 16 50 02 80.8 -7.7 0.1 171.4 292 151 21 09 11 21 18 40 J2018+0831 16 54 33 37.6 103.7 -3.4 -57.7 176 151 21 18 40 21 19 40 --- 16 55 33 37.8 103.9 -3.4 -57.7 60 159 21 18 41 21 19 40 MG2016 16 55 33 39.1 100.5 -3.4 -59.7 -11 159 21 19 51 21 23 10 --- 16 59 04 39.8 101.0 -3.4 -59.5 199 184 21 19 41 21 23 10 J2018+0831 16 59 04 38.5 104.4 -3.3 -57.4 -11 184 21 23 21 21 24 40 --- 17 00 34 38.8 104.7 -3.3 -57.3 79 195 21 23 11 21 24 40 MG2016 17 00 34 40.1 101.3 -3.3 -59.4 -11 195 21 24 51 21 28 10 --- 17 04 05 40.9 101.9 -3.3 -59.2 199 220 21 24 41 21 28 50 J2018+0831 17 04 45 39.7 105.4 -3.2 -57.0 29 220 21 28 50 21 29 50 --- 17 05 45 39.9 105.6 -3.2 -56.9 60 228 21 28 51 Schedule for VLBA_FD (Code Fd ) 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 17 05 45 41.2 102.1 -3.2 -59.1 -11 228 21 30 01 21 33 20 --- 17 09 15 42.0 102.7 -3.2 -58.9 199 254 21 29 51 21 33 20 J2018+0831 17 09 15 40.6 106.2 -3.2 -56.7 -11 254 21 33 31 21 34 50 --- 17 10 46 40.9 106.5 -3.1 -56.6 79 264 21 33 21 21 34 50 MG2016 17 10 46 42.3 103.0 -3.2 -58.8 -11 264 21 35 01 21 38 20 --- 17 14 16 43.0 103.6 -3.1 -58.6 199 289 21 34 51 21 39 00 J2018+0831 17 14 56 41.8 107.3 -3.1 -56.2 29 289 21 39 00 21 40 00 --- 17 15 56 42.0 107.4 -3.1 -56.1 60 297 21 39 01 21 40 00 MG2016 17 15 56 43.4 103.9 -3.1 -58.5 -11 297 21 40 11 21 43 30 --- 17 19 27 44.1 104.5 -3.0 -58.2 199 323 21 40 01 21 43 30 J2018+0831 17 19 27 42.7 108.1 -3.0 -55.8 -11 323 21 43 41 21 45 00 --- 17 20 57 43.0 108.4 -3.0 -55.7 79 333 21 43 31 21 45 00 MG2016 17 20 57 44.4 104.8 -3.0 -58.1 -11 333 21 45 11 21 48 30 --- 17 24 28 45.1 105.4 -2.9 -57.8 199 359 21 45 01 21 49 10 J2018+0831 17 25 08 43.9 109.2 -2.9 -55.3 29 359 21 49 10 21 50 10 --- 17 26 08 44.1 109.4 -2.9 -55.2 60 366 21 49 11 21 50 10 MG2016 17 26 08 45.5 105.7 -2.9 -57.7 -11 366 21 50 21 21 53 40 --- 17 29 39 46.2 106.4 -2.8 -57.4 199 392 21 50 11 21 53 40 J2018+0831 17 29 39 44.8 110.1 -2.8 -54.8 -11 392 21 53 51 21 55 10 --- 17 31 09 45.1 110.4 -2.8 -54.7 79 402 21 53 41 21 55 10 MG2016 17 31 09 46.5 106.7 -2.8 -57.3 -11 402 21 55 21 21 58 40 --- 17 34 40 47.2 107.4 -2.8 -56.9 199 428 21 55 11 21 59 20 J2018+0831 17 35 20 45.9 111.2 -2.7 -54.2 29 428 21 59 20 22 00 20 --- 17 36 20 46.2 111.5 -2.7 -54.1 60 435 21 59 21 22 00 20 MG2016 17 36 20 47.6 107.7 -2.7 -56.8 -11 435 22 00 31 22 03 50 --- 17 39 50 48.3 108.4 -2.7 -56.4 199 461 22 00 21 22 03 50 J2018+0831 17 39 50 46.9 112.2 -2.7 -53.7 -11 461 22 04 01 22 05 20 --- 17 41 21 47.2 112.5 -2.6 -53.5 79 471 22 03 51 22 05 20 MG2016 17 41 21 48.6 108.7 -2.6 -56.3 -11 471 22 05 31 22 08 50 --- 17 44 51 49.3 109.5 -2.6 -55.9 199 497 22 05 21 Schedule for VLBA_FD (Code Fd ) 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 17 45 31 48.0 113.4 -2.6 -53.0 29 497 22 09 30 22 10 30 --- 17 46 32 48.2 113.7 -2.5 -52.9 60 505 22 09 31 22 10 30 MG2016 17 46 32 49.7 109.8 -2.6 -55.7 -11 505 22 10 41 22 14 00 --- 17 50 02 50.4 110.6 -2.5 -55.3 199 530 22 10 31 22 14 00 J2018+0831 17 50 02 48.9 114.5 -2.5 -52.4 -11 530 22 14 11 22 15 30 --- 17 51 32 49.2 114.8 -2.5 -52.2 79 540 22 14 01 22 15 30 MG2016 17 51 32 50.7 110.9 -2.5 -55.1 -11 540 22 15 41 22 19 00 --- 17 55 03 51.4 111.7 -2.4 -54.7 199 566 22 15 31 22 19 40 J2018+0831 17 55 43 50.0 115.8 -2.4 -51.6 29 566 22 19 40 22 20 40 --- 17 56 43 50.2 116.0 -2.4 -51.4 60 574 22 19 41 22 20 40 MG2016 17 56 43 51.7 112.1 -2.4 -54.5 -11 574 22 20 51 22 24 10 --- 18 00 14 52.4 112.9 -2.3 -54.0 199 599 22 20 41 22 24 10 J2018+0831 18 00 14 50.8 116.9 -2.3 -50.9 -11 599 22 24 21 22 25 40 --- 18 01 44 51.1 117.3 -2.3 -50.7 79 610 22 24 11 22 25 40 MG2016 18 01 44 52.7 113.2 -2.3 -53.8 -11 610 22 25 51 22 29 10 --- 18 05 15 53.4 114.1 -2.2 -53.3 199 635 22 25 41 22 29 50 J2018+0831 18 05 55 51.9 118.3 -2.2 -50.0 29 635 22 29 50 22 30 50 --- 18 06 55 52.1 118.6 -2.2 -49.8 60 643 22 29 51 22 30 50 MG2016 18 06 55 53.7 114.5 -2.2 -53.0 -11 643 22 31 01 22 34 20 --- 18 10 25 54.4 115.4 -2.2 -52.5 199 669 22 30 51 22 34 20 J2018+0831 18 10 25 52.8 119.5 -2.1 -49.2 -11 669 22 34 31 22 35 50 --- 18 11 56 53.1 119.9 -2.1 -49.0 79 679 22 34 21 22 35 50 MG2016 18 11 56 54.7 115.8 -2.1 -52.3 -11 679 22 36 01 22 39 20 --- 18 15 26 55.4 116.7 -2.1 -51.7 199 704 22 35 51 22 40 00 J2018+0831 18 16 06 53.8 121.0 -2.1 -48.2 29 704 22 40 00 22 41 00 --- 18 17 07 54.0 121.3 -2.0 -48.0 60 712 22 40 01 22 41 00 MG2016 18 17 07 55.7 117.2 -2.1 -51.4 -11 712 22 41 11 22 44 30 --- 18 20 37 56.4 118.1 -2.0 -50.8 199 738 22 41 01 22 44 30 J2018+0831 18 20 37 54.7 122.3 -2.0 -47.3 -11 738 22 44 41 22 46 00 --- 18 22 07 54.9 122.8 -2.0 -47.0 79 748 22 44 31 Schedule for VLBA_FD (Code Fd ) 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 18 22 07 56.7 118.5 -2.0 -50.5 -11 748 22 46 11 22 49 30 --- 18 25 38 57.3 119.6 -1.9 -49.8 199 774 22 46 01 22 50 10 J2018+0831 18 26 18 55.7 124.0 -1.9 -46.2 29 774 22 50 10 22 51 10 --- 18 27 18 55.9 124.3 -1.9 -45.9 60 781 22 50 11 22 51 10 MG2016 18 27 18 57.6 120.0 -1.9 -49.5 -12 781 22 51 22 22 54 40 --- 18 30 49 58.3 121.1 -1.8 -48.8 198 807 22 51 11 22 54 40 J2018+0831 18 30 49 56.5 125.4 -1.8 -45.2 -12 807 22 54 52 22 56 10 --- 18 32 19 56.7 125.9 -1.8 -44.8 78 817 22 54 41 22 56 10 MG2016 18 32 19 58.6 121.6 -1.8 -48.4 -12 817 22 56 22 22 59 40 --- 18 35 50 59.2 122.7 -1.7 -47.7 198 842 22 56 11 23 00 20 J2018+0831 18 36 30 57.5 127.2 -1.7 -43.8 28 842 23 00 20 23 01 20 --- 18 37 30 57.6 127.6 -1.7 -43.6 60 850 23 00 21 23 01 20 MG2016 18 37 30 59.5 123.2 -1.7 -47.3 -12 850 23 01 32 23 04 50 --- 18 41 00 60.1 124.4 -1.7 -46.4 198 876 23 01 21 23 04 50 J2018+0831 18 41 00 58.2 128.8 -1.6 -42.7 -12 876 23 05 02 23 06 20 --- 18 42 31 58.5 129.3 -1.6 -42.3 78 886 23 04 51 23 06 20 MG2016 18 42 31 60.4 124.9 -1.6 -46.1 -12 886 23 06 32 23 09 50 --- 18 46 01 61.0 126.1 -1.6 -45.2 198 911 23 06 21 23 10 30 J2018+0831 18 46 41 59.2 130.8 -1.5 -41.2 28 911 23 10 30 23 11 30 --- 18 47 42 59.3 131.1 -1.5 -40.9 60 919 23 10 31 23 11 30 MG2016 18 47 42 61.3 126.7 -1.5 -44.7 -12 919 23 11 42 23 15 00 --- 18 51 12 61.9 128.0 -1.5 -43.8 198 944 23 11 31 23 15 00 J2018+0831 18 51 12 59.9 132.5 -1.5 -39.9 -12 944 23 15 12 23 16 30 --- 18 52 42 60.1 133.0 -1.4 -39.5 78 954 23 15 01 23 16 30 MG2016 18 52 42 62.1 128.6 -1.5 -43.3 -12 954 23 16 42 23 20 00 --- 18 56 13 62.7 130.0 -1.4 -42.3 198 980 23 16 31 23 20 40 J2018+0831 18 56 53 60.8 134.7 -1.4 -38.2 28 980 23 20 40 23 21 40 --- 18 57 53 60.9 135.1 -1.4 -37.9 60 988 23 20 41 23 21 40 MG2016 18 57 53 63.0 130.6 -1.4 -41.8 -12 988 23 21 52 23 25 10 --- 19 01 24 63.6 132.1 -1.3 -40.7 198 1013 23 21 41 Schedule for VLBA_FD (Code Fd ) 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 19 01 24 61.5 136.5 -1.3 -36.8 -12 1013 23 25 22 23 26 40 --- 19 02 54 61.7 137.1 -1.3 -36.3 78 1023 23 25 11 23 26 40 MG2016 19 02 54 63.8 132.7 -1.3 -40.2 -12 1023 23 26 52 23 30 10 --- 19 06 25 64.4 134.2 -1.2 -39.0 198 1049 23 26 41 23 30 50 J2018+0831 19 07 05 62.3 138.9 -1.2 -34.9 28 1049 23 30 50 23 31 50 --- 19 08 05 62.4 139.3 -1.2 -34.5 60 1056 23 30 51 23 31 50 MG2016 19 08 05 64.6 135.0 -1.2 -38.4 -12 1056 23 32 02 23 35 20 --- 19 11 35 65.1 136.6 -1.1 -37.1 198 1082 23 31 51 23 35 20 J2018+0831 19 11 35 62.9 140.9 -1.1 -33.3 -12 1082 23 35 32 23 36 50 --- 19 13 06 63.1 141.6 -1.1 -32.7 78 1092 23 35 21 23 36 50 MG2016 19 13 06 65.4 137.3 -1.1 -36.6 -12 1092 23 37 02 23 40 20 --- 19 16 36 65.9 139.0 -1.1 -35.2 198 1118 23 36 51 23 41 00 J2018+0831 19 17 16 63.7 143.6 -1.0 -31.1 27 1118 23 41 00 23 42 00 --- 19 18 17 63.8 144.0 -1.0 -30.7 60 1125 23 41 01 23 42 00 MG2016 19 18 17 66.1 139.8 -1.0 -34.5 -13 1125 23 42 13 23 45 30 --- 19 21 47 66.6 141.6 -1.0 -33.1 197 1151 23 42 01 23 45 30 J2018+0831 19 21 47 64.2 145.7 -1.0 -29.3 -13 1151 23 45 43 23 47 00 --- 19 23 17 64.4 146.5 -0.9 -28.7 77 1161 23 45 31 23 47 00 MG2016 19 23 17 66.8 142.3 -0.9 -32.4 -13 1161 23 47 13 23 50 30 --- 19 26 48 67.2 144.2 -0.9 -30.9 197 1186 23 47 01 23 51 10 J2018+0831 19 27 28 64.9 148.6 -0.9 -26.9 27 1186 23 51 10 23 52 10 --- 19 28 28 65.0 149.2 -0.8 -26.5 60 1194 23 51 11 23 52 10 MG2016 19 28 28 67.4 145.1 -0.9 -30.1 -13 1194 23 52 23 23 55 40 --- 19 31 59 67.9 147.1 -0.8 -28.5 197 1219 23 52 11 23 55 40 J2018+0831 19 31 59 65.4 151.0 -0.8 -24.9 -13 1219 23 55 53 23 57 10 --- 19 33 29 65.5 151.8 -0.8 -24.3 77 1229 23 55 41 --- Start: Tue 29 Oct 2019 Day 302 -- Stop: Wed 30 Oct 2019 Day 303 --- 23 57 10 MG2016 19 33 29 68.0 148.0 -0.8 -27.8 -13 1229 23 57 23 00 00 40 --- 19 37 00 68.4 150.0 -0.7 -26.0 197 1254 23 57 11 Schedule for VLBA_FD (Code Fd ) 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 19 37 40 65.9 154.1 -0.7 -22.3 27 1254 00 01 20 00 02 20 --- 19 38 40 66.0 154.7 -0.7 -21.8 60 1262 00 01 21 00 02 20 MG2016 19 38 40 68.6 151.0 -0.7 -25.2 -13 1262 00 02 33 00 05 50 --- 19 42 10 68.9 153.2 -0.6 -23.3 197 1287 00 02 21 00 05 50 J2018+0831 19 42 10 66.3 156.7 -0.6 -20.1 -13 1287 00 06 03 00 07 20 --- 19 43 41 66.5 157.6 -0.6 -19.4 77 1297 00 05 51 00 07 20 MG2016 19 43 41 69.1 154.2 -0.6 -22.5 -13 1297 00 07 33 00 10 50 --- 19 47 11 69.4 156.4 -0.6 -20.6 197 1323 00 07 21 00 11 30 J2018+0831 19 47 51 66.8 160.0 -0.5 -17.3 27 1323 00 11 30 00 12 30 --- 19 48 52 66.9 160.7 -0.5 -16.8 60 1330 00 11 31 00 12 30 MG2016 19 48 52 69.5 157.5 -0.5 -19.6 -13 1330 00 12 43 00 16 00 --- 19 52 22 69.8 159.9 -0.5 -17.6 197 1356 00 12 31 00 16 00 J2018+0831 19 52 22 67.1 162.8 -0.4 -14.9 -13 1356 00 16 13 00 17 30 --- 19 53 52 67.2 163.7 -0.4 -14.1 77 1366 00 16 01 00 17 30 MG2016 19 53 52 69.9 160.9 -0.4 -16.7 -13 1366 00 17 43 00 21 00 --- 19 57 23 70.2 163.3 -0.4 -14.6 197 1391 00 17 31 00 21 40 J2018+0831 19 58 03 67.4 166.3 -0.4 -11.9 27 1391 00 21 40 00 22 40 --- 19 59 03 67.5 167.0 -0.3 -11.3 60 1399 00 21 41 00 22 40 MG2016 19 59 03 70.3 164.5 -0.4 -13.6 -14 1399 00 22 54 00 26 10 --- 20 02 34 70.5 167.0 -0.3 -11.4 196 1424 00 22 41 00 26 10 J2018+0831 20 02 34 67.6 169.2 -0.3 -9.4 -14 1424 00 26 24 00 27 40 --- 20 04 04 67.7 170.2 -0.3 -8.6 76 1434 00 26 11 00 27 40 MG2016 20 04 04 70.5 168.1 -0.3 -10.5 -14 1434 00 27 54 00 31 10 --- 20 07 35 70.7 170.6 -0.2 -8.2 196 1459 00 27 41 00 31 50 J2018+0831 20 08 15 67.8 172.9 -0.2 -6.2 26 1459 00 31 50 00 32 50 --- 20 09 15 67.8 173.5 -0.2 -5.6 60 1467 00 31 51 00 32 50 MG2016 20 09 15 70.7 171.8 -0.2 -7.2 -14 1467 00 33 04 00 36 20 --- 20 12 45 70.8 174.4 -0.1 -4.9 196 1492 00 32 51 00 36 20 J2018+0831 20 12 45 67.9 175.8 -0.1 -3.6 -14 1492 00 36 34 00 37 50 --- 20 14 16 67.9 176.8 -0.1 -2.8 76 1502 00 36 21 Schedule for VLBA_FD (Code Fd ) 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 20 14 16 70.8 175.5 -0.1 -3.9 -14 1502 00 38 04 00 41 20 --- 20 17 46 70.9 178.2 -0.0 -1.6 196 1527 00 37 51 00 42 00 J2018+0831 20 18 26 68.0 179.5 -0.0 -0.4 26 1527 00 42 00 00 43 00 --- 20 19 27 68.0 180.2 0.0 0.2 60 1535 00 42 01 00 44 30 3C345 20 20 57 45.4 297.3 3.6 84.2 -1 1535 00 44 31 00 49 30 --- 20 25 58 44.4 297.4 3.7 83.5 299 1573 00 44 31 00 54 00 J2018+0831 20 30 28 67.8 187.4 0.2 6.5 182 1573 00 54 00 00 55 00 --- 20 31 29 67.8 188.1 0.2 7.0 60 1581 00 54 01 00 55 00 MG2016 20 31 29 70.7 188.4 0.2 7.3 -14 1581 00 55 14 00 58 30 --- 20 34 59 70.6 190.9 0.2 9.6 196 1606 00 55 01 00 58 30 J2018+0831 20 34 59 67.7 190.4 0.3 9.0 -14 1606 00 58 44 01 00 00 --- 20 36 29 67.6 191.3 0.3 9.8 76 1616 00 58 31 01 00 00 MG2016 20 36 29 70.5 192.0 0.3 10.5 -14 1616 01 00 14 01 03 30 --- 20 40 00 70.3 194.5 0.3 12.7 196 1641 01 00 01 01 04 10 J2018+0831 20 40 40 67.4 194.0 0.4 12.1 26 1641 01 04 10 01 05 10 --- 20 41 40 67.3 194.6 0.4 12.7 60 1649 01 04 11 01 05 10 MG2016 20 41 40 70.2 195.7 0.4 13.8 -14 1649 01 05 24 01 08 40 --- 20 45 11 70.0 198.2 0.4 15.9 196 1674 01 05 11 01 08 40 J2018+0831 20 45 11 67.1 196.8 0.4 14.5 -14 1674 01 08 54 01 10 10 --- 20 46 41 67.0 197.7 0.5 15.3 76 1684 01 08 41 01 10 10 MG2016 20 46 41 69.9 199.2 0.4 16.8 -14 1684 01 10 24 01 13 40 --- 20 50 12 69.7 201.6 0.5 18.8 196 1709 01 10 11 01 14 20 J2018+0831 20 50 52 66.7 200.2 0.5 17.5 26 1709 01 14 20 01 15 20 --- 20 51 52 66.7 200.8 0.5 18.0 60 1717 01 14 21 01 15 20 MG2016 20 51 52 69.5 202.7 0.5 19.8 -14 1717 01 15 34 01 18 50 --- 20 55 22 69.2 205.0 0.6 21.7 196 1742 01 15 21 01 18 50 J2018+0831 20 55 22 66.4 202.9 0.6 19.8 -14 1742 01 19 04 01 20 20 --- 20 56 53 66.3 203.8 0.6 20.5 76 1752 01 18 51 01 20 20 MG2016 20 56 53 69.1 205.9 0.6 22.6 -14 1752 01 20 34 01 23 50 --- 21 00 23 68.7 208.1 0.7 24.4 196 1777 01 20 21 Schedule for VLBA_FD (Code Fd ) 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 21 01 03 65.9 206.1 0.7 22.5 26 1777 01 24 30 01 25 30 --- 21 02 04 65.8 206.7 0.7 23.0 60 1785 01 24 31 01 25 30 MG2016 21 02 04 68.6 209.1 0.7 25.3 -13 1785 01 25 43 01 29 00 --- 21 05 34 68.2 211.2 0.8 27.1 197 1811 01 25 31 01 29 00 J2018+0831 21 05 34 65.4 208.6 0.8 24.6 -13 1811 01 29 13 01 30 30 --- 21 07 04 65.3 209.4 0.8 25.3 77 1820 01 29 01 01 30 30 MG2016 21 07 04 68.0 212.1 0.8 27.8 -13 1820 01 30 43 01 34 00 --- 21 10 35 67.6 214.1 0.8 29.5 197 1846 01 30 31 01 34 40 J2018+0831 21 11 15 64.8 211.6 0.9 27.1 27 1846 01 34 40 01 35 40 --- 21 12 15 64.7 212.1 0.9 27.6 60 1854 01 34 41 01 35 40 MG2016 21 12 15 67.4 215.0 0.9 30.3 -13 1854 01 35 53 01 39 10 --- 21 15 46 67.0 216.9 0.9 31.8 197 1879 01 35 41 01 39 10 J2018+0831 21 15 46 64.3 213.9 0.9 29.0 -13 1879 01 39 23 01 40 40 --- 21 17 16 64.1 214.6 1.0 29.6 77 1889 01 39 11 01 40 40 MG2016 21 17 16 66.8 217.7 1.0 32.5 -13 1889 01 40 53 01 44 10 --- 21 20 47 66.3 219.5 1.0 34.0 197 1914 01 40 41 01 44 50 J2018+0831 21 21 27 63.6 216.7 1.0 31.3 27 1914 01 44 50 01 45 50 --- 21 22 27 63.5 217.1 1.1 31.7 60 1922 01 44 51 01 45 50 MG2016 21 22 27 66.1 220.4 1.0 34.7 -13 1922 01 46 03 01 49 20 --- 21 25 57 65.6 222.1 1.1 36.0 197 1947 01 45 51 01 49 20 J2018+0831 21 25 57 63.0 218.8 1.1 33.0 -13 1947 01 49 33 01 50 50 --- 21 27 28 62.8 219.4 1.1 33.6 77 1957 01 49 21 01 50 50 MG2016 21 27 28 65.3 222.8 1.1 36.6 -13 1957 01 51 03 01 54 20 --- 21 30 58 64.8 224.4 1.2 37.9 197 1983 01 50 51 01 55 00 J2018+0831 21 31 38 62.2 221.3 1.2 35.0 27 1983 01 55 00 01 56 00 --- 21 32 39 62.1 221.7 1.2 35.4 60 1990 01 55 01 01 56 00 MG2016 21 32 39 64.6 225.2 1.2 38.5 -13 1990 01 56 13 01 59 30 --- 21 36 09 64.0 226.7 1.3 39.7 197 2016 01 56 01 01 59 30 J2018+0831 21 36 09 61.6 223.2 1.3 36.6 -13 2016 01 59 43 02 01 00 --- 21 37 39 61.3 223.8 1.3 37.1 77 2026 01 59 31 Schedule for VLBA_FD (Code Fd ) 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 21 37 39 63.8 227.3 1.3 40.2 -13 2026 02 01 13 02 04 30 --- 21 41 10 63.2 228.8 1.3 41.4 197 2051 02 01 01 02 05 10 J2018+0831 21 41 50 60.7 225.5 1.4 38.4 27 2051 02 05 10 02 06 10 --- 21 42 50 60.6 225.9 1.4 38.7 60 2059 02 05 11 02 06 10 MG2016 21 42 50 63.0 229.5 1.4 41.9 -13 2059 02 06 23 02 09 40 --- 21 46 21 62.4 230.9 1.4 42.9 197 2084 02 06 11 02 09 40 J2018+0831 21 46 21 60.0 227.3 1.5 39.7 -13 2084 02 09 53 02 11 10 --- 21 47 51 59.8 227.8 1.5 40.2 77 2094 02 09 41 02 11 10 MG2016 21 47 51 62.1 231.4 1.5 43.4 -13 2094 02 11 23 02 14 40 --- 21 51 22 61.5 232.8 1.5 44.3 197 2119 02 11 11 02 15 20 J2018+0831 21 52 02 59.1 229.4 1.5 41.3 27 2119 02 15 20 02 16 20 --- 21 53 02 58.9 229.7 1.6 41.6 60 2127 02 15 21 02 16 20 MG2016 21 53 02 61.2 233.4 1.5 44.8 -13 2127 02 16 33 02 19 50 --- 21 56 32 60.6 234.6 1.6 45.7 197 2153 02 16 21 02 19 50 J2018+0831 21 56 32 58.3 231.0 1.6 42.5 -13 2153 02 20 03 02 21 20 --- 21 58 03 58.1 231.5 1.6 42.9 77 2162 02 19 51 02 21 20 MG2016 21 58 03 60.4 235.1 1.6 46.1 -12 2162 02 21 32 02 24 50 --- 22 01 33 59.7 236.3 1.7 46.9 198 2188 02 21 21 02 25 30 J2018+0831 22 02 13 57.4 232.9 1.7 44.0 28 2188 02 25 30 02 26 30 --- 22 03 14 57.2 233.2 1.7 44.2 60 2196 02 25 31 02 26 30 MG2016 22 03 14 59.4 236.9 1.7 47.3 -12 2196 02 26 42 02 30 00 --- 22 06 44 58.8 238.0 1.8 48.1 198 2221 02 26 31 02 30 00 J2018+0831 22 06 44 56.6 234.4 1.8 45.0 -12 2221 02 30 12 02 31 30 --- 22 08 14 56.3 234.8 1.8 45.4 78 2231 02 30 01 02 31 30 MG2016 22 08 14 58.5 238.5 1.8 48.5 -12 2231 02 31 42 02 35 00 --- 22 11 45 57.9 239.5 1.9 49.2 198 2257 02 31 31 02 35 40 J2018+0831 22 12 25 55.6 236.1 1.9 46.3 28 2257 02 35 40 02 36 40 --- 22 13 25 55.4 236.4 1.9 46.5 60 2265 02 35 41 02 36 40 MG2016 22 13 25 57.6 240.0 1.9 49.5 -12 2265 02 36 52 02 40 10 --- 22 16 56 56.9 241.1 1.9 50.2 198 2290 02 36 41 Schedule for VLBA_FD (Code Fd ) 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 22 16 56 54.8 237.5 2.0 47.2 -12 2290 02 40 22 02 41 40 --- 22 18 26 54.5 237.9 2.0 47.5 78 2300 02 40 11 02 41 40 MG2016 22 18 26 56.6 241.5 2.0 50.5 -12 2300 02 41 52 02 45 10 --- 22 21 57 56.0 242.5 2.0 51.1 198 2326 02 41 41 02 45 50 J2018+0831 22 22 37 53.7 239.1 2.1 48.3 28 2326 02 45 50 02 46 50 --- 22 23 37 53.6 239.4 2.1 48.5 60 2333 02 45 51 02 46 50 MG2016 22 23 37 55.6 242.9 2.1 51.4 -12 2333 02 47 02 02 50 20 --- 22 27 07 55.0 243.9 2.1 52.0 198 2359 02 46 51 02 50 20 J2018+0831 22 27 07 52.9 240.3 2.1 49.1 -12 2359 02 50 32 02 51 50 --- 22 28 38 52.6 240.7 2.2 49.4 78 2369 02 50 21 02 51 50 MG2016 22 28 38 54.7 244.3 2.1 52.3 -12 2369 02 52 02 02 55 20 --- 22 32 08 54.0 245.1 2.2 52.8 198 2394 02 51 51 02 56 00 J2018+0831 22 32 48 51.8 241.8 2.2 50.1 28 2394 02 56 00 02 57 00 --- 22 33 49 51.6 242.1 2.2 50.2 60 2402 02 56 01 02 57 00 MG2016 22 33 49 53.7 245.6 2.2 53.1 -12 2402 02 57 12 03 00 30 --- 22 37 19 53.0 246.4 2.3 53.6 198 2428 02 57 01 03 00 30 J2018+0831 22 37 19 51.0 242.9 2.3 50.8 -12 2428 03 00 42 03 02 00 --- 22 38 49 50.7 243.3 2.3 51.0 78 2438 03 00 31 03 02 00 MG2016 22 38 49 52.7 246.8 2.3 53.8 -12 2438 03 02 12 03 05 30 --- 22 42 20 52.0 247.6 2.4 54.3 198 2463 03 02 01 03 06 10 J2018+0831 22 43 00 49.9 244.3 2.4 51.7 28 2463 03 06 10 03 07 10 --- 22 44 00 49.7 244.6 2.4 51.8 60 2471 03 06 11 03 07 10 MG2016 22 44 00 51.7 248.0 2.4 54.5 -12 2471 03 07 22 03 10 40 --- 22 47 31 51.0 248.8 2.5 54.9 198 2496 03 07 11 03 10 40 J2018+0831 22 47 31 49.0 245.4 2.5 52.3 -12 2496 03 10 52 03 12 10 --- 22 49 01 48.7 245.7 2.5 52.5 78 2506 03 10 41 03 12 10 MG2016 22 49 01 50.7 249.1 2.5 55.1 -12 2506 03 12 22 03 15 40 --- 22 52 32 49.9 249.9 2.5 55.5 198 2532 03 12 11 03 16 20 J2018+0831 22 53 12 47.9 246.7 2.6 53.0 28 2532 03 16 20 03 17 20 --- 22 54 12 47.7 246.9 2.6 53.2 60 2540 03 16 21 Schedule for VLBA_FD (Code Fd ) 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 22 54 12 49.6 250.2 2.6 55.7 -12 2540 03 17 32 03 20 50 --- 22 57 42 48.9 251.0 2.6 56.1 198 2565 03 17 21 03 20 50 J2018+0831 22 57 42 47.0 247.7 2.6 53.6 -12 2565 03 21 02 03 22 20 --- 22 59 13 46.7 248.0 2.7 53.8 78 2575 03 20 51 03 22 20 MG2016 22 59 13 48.6 251.3 2.6 56.3 -12 2575 03 22 32 03 25 50 --- 23 02 43 47.9 252.0 2.7 56.6 198 2601 03 22 21 03 26 30 J2018+0831 23 03 23 45.9 248.9 2.7 54.3 28 2601 03 26 30 03 27 30 --- 23 04 24 45.7 249.1 2.8 54.4 60 2608 03 26 31 03 27 30 MG2016 23 04 24 47.5 252.3 2.7 56.8 -12 2608 03 27 42 03 31 00 --- 23 07 54 46.8 253.0 2.8 57.1 198 2634 03 27 31 03 31 00 J2018+0831 23 07 54 44.9 249.8 2.8 54.7 -12 2634 03 31 12 03 32 30 --- 23 09 24 44.6 250.1 2.8 54.9 78 2644 03 31 01 03 32 30 MG2016 23 09 24 46.5 253.3 2.8 57.3 -12 2644 03 32 42 03 36 00 --- 23 12 55 45.8 254.0 2.9 57.6 198 2670 03 32 31 03 36 40 J2018+0831 23 13 35 43.8 250.9 2.9 55.3 28 2670 03 36 40 03 37 40 --- 23 14 35 43.6 251.1 2.9 55.4 60 2677 03 36 41 03 37 40 MG2016 23 14 35 45.4 254.3 2.9 57.7 -12 2677 03 37 52 03 41 10 --- 23 18 06 44.7 255.0 3.0 58.0 198 2703 03 37 41 03 41 10 J2018+0831 23 18 06 42.9 251.8 3.0 55.7 -12 2703 03 41 22 03 42 40 --- 23 19 36 42.6 252.1 3.0 55.9 78 2713 03 41 11 03 42 40 MG2016 23 19 36 44.4 255.2 3.0 58.1 -12 2713 03 42 52 03 46 10 --- 23 23 07 43.7 255.9 3.0 58.4 198 2738 03 42 41 03 46 50 J2018+0831 23 23 47 41.7 252.8 3.1 56.2 28 2738 03 46 50 03 47 50 --- 23 24 47 41.5 253.0 3.1 56.3 60 2746 03 46 51 03 47 50 MG2016 23 24 47 43.3 256.2 3.1 58.5 -12 2746 03 48 02 03 51 20 --- 23 28 17 42.6 256.8 3.1 58.7 198 2772 03 47 51 03 51 20 J2018+0831 23 28 17 40.8 253.7 3.2 56.6 -12 2772 03 51 32 03 52 50 --- 23 29 48 40.5 253.9 3.2 56.7 78 2782 03 51 21 03 52 50 MG2016 23 29 48 42.3 257.0 3.2 58.8 -12 2782 03 53 02 03 56 20 --- 23 33 18 41.5 257.6 3.2 59.1 198 2807 03 52 51 Schedule for VLBA_FD (Code Fd ) 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 23 33 58 39.6 254.7 3.2 57.1 28 2807 03 57 00 03 58 00 --- 23 34 59 39.4 254.8 3.3 57.1 60 2815 03 57 01 03 58 00 MG2016 23 34 59 41.2 257.9 3.2 59.2 -11 2815 03 58 11 04 01 30 --- 23 38 29 40.4 258.5 3.3 59.4 199 2840 03 58 01 04 01 30 J2018+0831 23 38 29 38.7 255.4 3.3 57.4 -12 2840 04 01 42 04 03 00 --- 23 39 59 38.4 255.7 3.3 57.5 78 2851 04 01 31 04 03 00 MG2016 23 39 59 40.1 258.7 3.3 59.4 -11 2851 04 03 11 04 06 30 --- 23 43 30 39.4 259.3 3.4 59.6 199 2876 04 03 01 04 07 10 J2018+0831 23 44 10 37.5 256.4 3.4 57.8 28 2876 04 07 10 04 08 10 --- 23 45 10 37.3 256.6 3.4 57.8 60 2884 04 07 11 04 08 10 MG2016 23 45 10 39.0 259.6 3.4 59.7 -11 2884 04 08 21 04 11 40 --- 23 48 41 38.3 260.1 3.5 59.9 199 2910 04 08 11 04 11 40 J2018+0831 23 48 41 36.5 257.1 3.5 58.0 -11 2910 04 11 51 04 13 10 --- 23 50 11 36.2 257.4 3.5 58.1 79 2920 04 11 41 04 13 10 MG2016 23 50 11 38.0 260.3 3.5 60.0 -11 2920 04 13 21 04 16 40 --- 23 53 42 37.2 260.9 3.6 60.1 199 2945 04 13 11 04 17 20 J2018+0831 23 54 22 35.3 258.0 3.6 58.4 29 2945 04 17 20 04 18 20 --- 23 55 22 35.1 258.2 3.6 58.4 60 2953 04 17 21 04 18 20 MG2016 23 55 22 36.9 261.1 3.6 60.2 -11 2953 04 18 31 04 21 50 --- 23 58 53 36.1 261.7 3.6 60.3 199 2979 04 18 21 04 21 50 J2018+0831 23 58 53 34.4 258.8 3.7 58.6 -11 2979 04 22 01 04 23 20 --- 00 00 23 34.1 259.0 3.7 58.7 79 2989 04 21 51 04 23 20 MG2016 00 00 23 35.8 261.9 3.7 60.4 -11 2989 04 23 31 04 26 50 --- 00 03 53 35.0 262.4 3.7 60.5 199 3014 04 23 21 04 27 30 J2018+0831 00 04 33 33.2 259.6 3.8 58.9 29 3014 04 27 30 04 28 30 --- 00 05 34 33.0 259.8 3.8 58.9 60 3022 04 27 31 04 28 30 MG2016 00 05 34 34.7 262.7 3.8 60.6 -11 3022 04 28 41 04 32 00 --- 00 09 04 33.9 263.2 3.8 60.7 199 3048 04 28 31 04 32 00 J2018+0831 00 09 04 32.2 260.3 3.8 59.1 -11 3048 04 32 11 04 33 30 --- 00 10 34 31.9 260.5 3.9 59.1 79 3058 04 32 01 Schedule for VLBA_FD (Code Fd ) 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 00 10 34 33.6 263.4 3.8 60.7 -11 3058 04 33 41 04 37 00 --- 00 14 05 32.9 263.9 3.9 60.8 199 3084 04 33 31 04 37 40 J2018+0831 00 14 45 31.0 261.2 3.9 59.3 29 3084 04 37 40 04 38 40 --- 00 15 45 30.8 261.3 3.9 59.3 60 3091 04 37 41 04 38 40 MG2016 00 15 45 32.5 264.1 3.9 60.9 -11 3091 04 38 51 04 42 10 --- 00 19 16 31.8 264.6 4.0 61.0 199 3117 04 38 41 04 42 10 J2018+0831 00 19 16 30.1 261.8 4.0 59.5 -11 3117 04 42 21 04 43 40 --- 00 20 46 29.8 262.0 4.0 59.5 79 3127 04 42 11 04 43 40 MG2016 00 20 46 31.4 264.8 4.0 61.0 -11 3127 04 43 51 04 47 10 --- 00 24 17 30.7 265.3 4.1 61.1 199 3153 04 43 41 04 47 50 J2018+0831 00 24 57 28.9 262.6 4.1 59.7 29 3153 04 47 50 04 48 50 --- 00 25 57 28.6 262.8 4.1 59.7 60 3161 04 47 51 04 48 50 MG2016 00 25 57 30.3 265.6 4.1 61.1 -11 3161 04 49 01 04 52 20 --- 00 29 28 29.6 266.0 4.2 61.2 199 3186 04 48 51 04 52 20 J2018+0831 00 29 28 27.9 263.3 4.2 59.8 -11 3186 04 52 31 04 53 50 --- 00 30 58 27.6 263.5 4.2 59.8 79 3196 04 52 21 04 53 50 MG2016 00 30 58 29.3 266.2 4.2 61.2 -11 3196 04 54 01 04 57 20 --- 00 34 28 28.5 266.7 4.2 61.2 199 3222 04 53 51 04 58 00 J2018+0831 00 35 08 26.7 264.1 4.3 59.9 29 3222 04 58 00 04 59 00 --- 00 36 09 26.5 264.2 4.3 60.0 60 3230 04 58 01 04 59 00 MG2016 00 36 09 28.1 266.9 4.3 61.3 -11 3230 04 59 11 05 02 30 --- 00 39 39 27.4 267.4 4.3 61.3 199 3255 04 59 01 05 02 30 J2018+0831 00 39 39 25.7 264.7 4.3 60.1 -11 3255 05 02 41 05 04 00 --- 00 41 09 25.4 264.9 4.4 60.1 79 3266 05 02 31 05 04 00 MG2016 00 41 09 27.1 267.6 4.3 61.3 -11 3266 05 04 11 05 07 30 --- 00 44 40 26.3 268.1 4.4 61.4 199 3291 05 04 01 05 08 10 J2018+0831 00 45 20 24.5 265.5 4.4 60.2 29 3291 05 08 10 05 09 10 --- 00 46 20 24.3 265.6 4.5 60.2 60 3299 05 08 11 05 09 10 MG2016 00 46 20 25.9 268.3 4.4 61.4 -11 3299 05 09 21 05 12 40 --- 00 49 51 25.2 268.7 4.5 61.4 199 3325 05 09 11 Schedule for VLBA_FD (Code Fd ) 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 00 49 51 23.5 266.1 4.5 60.2 -11 3325 05 12 51 05 14 10 --- 00 51 21 23.2 266.3 4.5 60.3 79 3335 05 12 41 05 14 10 MG2016 00 51 21 24.9 268.9 4.5 61.4 -11 3335 05 14 21 05 17 40 --- 00 54 52 24.1 269.4 4.6 61.4 199 3360 05 14 11 05 18 20 J2018+0831 00 55 32 22.3 266.8 4.6 60.3 29 3360 05 18 20 05 19 20 --- 00 56 32 22.1 267.0 4.6 60.3 60 3368 05 18 21 05 20 00 J2018+0831 00 57 12 22.0 267.1 4.6 60.3 34 3368 05 20 00 05 21 00 --- 00 58 12 21.7 267.2 4.7 60.4 60 3376 05 20 01 05 21 00 MG2016 00 58 12 23.4 269.8 4.6 61.4 -11 3376 05 21 11 05 24 30 --- 01 01 43 22.6 270.3 4.7 61.4 199 3401 05 21 01 05 24 30 J2018+0831 01 01 43 21.0 267.6 4.7 60.4 -11 3401 05 24 41 05 25 30 --- 01 02 43 20.8 267.8 4.7 60.4 49 3408 05 24 31 05 25 30 MG2016 01 02 43 22.4 270.4 4.7 61.4 -11 3408 05 25 41 05 29 00 --- 01 06 14 21.7 270.8 4.8 61.4 199 3433 05 25 31 05 29 00 J2018+0831 01 06 14 20.0 268.2 4.8 60.4 -11 3433 05 29 11 05 30 00 --- 01 07 14 19.8 268.4 4.8 60.4 49 3440 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: 5 Station: VLBA_FD 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