COVER INFORMATION Station: GBT_VLBA (Code Gb ) 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 GBT_VLBA (Code Gb ) 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: 775.75 775.75 743.75 743.75 711.75 711.75 679.75 679.75 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 20 45 10 J2018+0831 17 57 23 46.4 123.8 -2.4 -41.2 0 0 20 45 10 20 46 10 --- 17 58 23 46.5 124.1 -2.3 -41.0 60 8 20 45 11 20 46 10 MG2016 17 58 23 48.5 120.9 -2.4 -43.3 -36 8 20 46 46 20 49 40 --- 18 01 53 49.1 121.8 -2.3 -42.8 174 30 20 46 11 20 49 40 J2018+0831 18 01 53 47.1 125.0 -2.3 -40.4 -36 30 20 50 16 20 51 10 --- 18 03 24 47.4 125.4 -2.3 -40.2 54 37 20 49 41 20 51 10 MG2016 18 03 24 49.4 122.2 -2.3 -42.6 -36 37 20 51 46 20 54 40 --- 18 06 54 49.9 123.2 -2.2 -42.0 174 60 20 51 11 20 55 20 J2018+0831 18 07 34 48.0 126.6 -2.2 -39.5 4 60 20 55 20 20 56 20 --- 18 08 35 48.2 126.9 -2.2 -39.3 60 67 20 55 21 20 56 20 MG2016 18 08 35 50.2 123.7 -2.2 -41.7 -36 67 20 56 56 20 59 50 --- 18 12 05 50.8 124.7 -2.1 -41.1 174 90 20 56 21 20 59 50 J2018+0831 18 12 05 48.7 127.9 -2.1 -38.7 -36 90 21 00 26 21 01 20 --- 18 13 35 48.9 128.4 -2.1 -38.4 54 97 20 59 51 21 01 40 J2018+0831 18 13 55 49.0 128.5 -2.1 -38.3 -1 97 Stopped 21 07 40 --- 18 19 56 49.9 130.3 -2.0 -37.2 359 97 21 09 10 3C345 18 21 27 71.0 281.8 1.6 86.2 -195 97 21 12 25 21 14 10 --- 18 26 27 70.1 282.0 1.7 85.6 105 110 21 09 11 21 18 40 J2018+0831 18 30 58 51.5 133.8 -1.8 -34.9 -9 110 21 18 49 21 19 40 --- 18 31 58 51.7 134.1 -1.8 -34.7 51 117 21 18 41 21 19 40 MG2016 18 31 58 53.9 130.9 -1.8 -37.2 -36 117 21 20 16 21 23 10 --- 18 35 29 54.4 132.1 -1.7 -36.4 174 139 21 19 41 21 23 10 J2018+0831 18 35 29 52.1 135.2 -1.7 -33.9 -36 139 21 23 46 21 24 40 --- 18 36 59 52.4 135.7 -1.7 -33.6 54 146 21 23 11 21 24 40 MG2016 18 36 59 54.6 132.6 -1.7 -36.1 -36 146 21 25 16 21 28 10 --- 18 40 30 55.1 133.8 -1.7 -35.3 174 168 21 24 41 21 28 50 J2018+0831 18 41 10 52.9 137.2 -1.6 -32.6 4 168 21 28 50 21 29 50 --- 18 42 10 53.0 137.5 -1.6 -32.3 60 176 21 28 51 Schedule for GBT_VLBA (Code Gb ) 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 18 42 10 55.3 134.4 -1.6 -34.9 -36 176 21 30 26 21 33 20 --- 18 45 41 55.8 135.6 -1.6 -34.0 174 199 21 29 51 21 33 20 J2018+0831 18 45 41 53.5 138.8 -1.6 -31.5 -36 199 21 33 56 21 34 50 --- 18 47 11 53.7 139.3 -1.5 -31.1 54 206 21 33 21 21 34 50 MG2016 18 47 11 56.0 136.2 -1.6 -33.6 -36 206 21 35 26 21 38 20 --- 18 50 41 56.5 137.5 -1.5 -32.7 174 228 21 34 51 21 39 00 J2018+0831 18 51 22 54.2 140.8 -1.5 -30.0 4 228 21 39 00 21 40 00 --- 18 52 22 54.4 141.2 -1.4 -29.8 60 236 21 39 01 21 40 00 MG2016 18 52 22 56.7 138.1 -1.5 -32.3 -35 236 21 40 35 21 43 30 --- 18 55 52 57.2 139.4 -1.4 -31.3 175 258 21 40 01 21 43 30 J2018+0831 18 55 52 54.8 142.5 -1.4 -28.9 -36 258 21 44 06 21 45 00 --- 18 57 23 55.0 143.0 -1.4 -28.4 54 265 21 43 31 21 45 00 MG2016 18 57 23 57.4 140.0 -1.4 -30.9 -35 265 21 45 35 21 48 30 --- 19 00 53 57.8 141.4 -1.3 -29.9 175 288 21 45 01 21 49 10 J2018+0831 19 01 33 55.4 144.6 -1.3 -27.3 4 288 21 49 10 21 50 10 --- 19 02 33 55.5 145.0 -1.3 -27.0 60 296 21 49 11 21 50 10 MG2016 19 02 33 58.0 142.1 -1.3 -29.4 -35 296 21 50 45 21 53 40 --- 19 06 04 58.4 143.5 -1.2 -28.4 175 318 21 50 11 21 53 40 J2018+0831 19 06 04 55.9 146.4 -1.2 -26.0 -36 318 21 54 16 21 55 10 --- 19 07 34 56.1 147.0 -1.2 -25.6 54 325 21 53 41 21 55 10 MG2016 19 07 34 58.6 144.1 -1.2 -27.9 -35 325 21 55 45 21 58 40 --- 19 11 05 59.0 145.6 -1.2 -26.9 175 348 21 55 11 21 59 20 J2018+0831 19 11 45 56.5 148.7 -1.1 -24.3 5 348 21 59 20 22 00 20 --- 19 12 45 56.6 149.1 -1.1 -24.0 60 355 21 59 21 22 00 20 MG2016 19 12 45 59.2 146.3 -1.1 -26.3 -35 355 22 00 55 22 03 50 --- 19 16 16 59.5 147.8 -1.1 -25.2 175 378 22 00 21 22 03 50 J2018+0831 19 16 16 57.0 150.6 -1.0 -22.9 -35 378 22 04 25 22 05 20 --- 19 17 46 57.1 151.2 -1.0 -22.4 55 385 22 03 51 22 05 20 MG2016 19 17 46 59.7 148.5 -1.0 -24.7 -35 385 22 05 55 22 08 50 --- 19 21 16 60.0 150.0 -1.0 -23.5 175 407 22 05 21 Schedule for GBT_VLBA (Code Gb ) 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 19 21 57 57.5 153.0 -1.0 -21.1 5 407 22 09 30 22 10 30 --- 19 22 57 57.6 153.4 -0.9 -20.8 60 415 22 09 31 22 10 30 MG2016 19 22 57 60.2 150.8 -1.0 -23.0 -35 415 22 11 05 22 14 00 --- 19 26 27 60.5 152.4 -0.9 -21.7 175 438 22 10 31 22 14 00 J2018+0831 19 26 27 57.9 154.9 -0.9 -19.6 -35 438 22 14 35 22 15 30 --- 19 27 58 58.0 155.6 -0.9 -19.1 55 445 22 14 01 22 15 30 MG2016 19 27 58 60.7 153.1 -0.9 -21.2 -35 445 22 16 05 22 19 00 --- 19 31 28 61.0 154.8 -0.8 -19.9 175 467 22 15 31 22 19 40 J2018+0831 19 32 08 58.3 157.4 -0.8 -17.7 5 467 22 19 40 22 20 40 --- 19 33 08 58.4 157.9 -0.8 -17.3 60 475 22 19 41 22 20 40 MG2016 19 33 08 61.1 155.6 -0.8 -19.3 -35 475 22 21 15 22 24 10 --- 19 36 39 61.4 157.3 -0.7 -18.0 175 498 22 20 41 22 24 10 J2018+0831 19 36 39 58.7 159.5 -0.7 -16.1 -35 498 22 24 45 22 25 40 --- 19 38 09 58.8 160.2 -0.7 -15.6 55 505 22 24 11 22 25 40 MG2016 19 38 09 61.5 158.0 -0.7 -17.4 -35 505 22 26 15 22 29 10 --- 19 41 40 61.7 159.7 -0.6 -16.1 175 527 22 25 41 22 29 50 J2018+0831 19 42 20 59.0 162.1 -0.6 -14.1 5 527 22 29 50 22 30 50 --- 19 43 20 59.1 162.6 -0.6 -13.7 60 535 22 29 51 22 30 50 MG2016 19 43 20 61.9 160.6 -0.6 -15.4 -35 535 22 31 25 22 34 20 --- 19 46 51 62.1 162.3 -0.6 -14.0 175 558 22 30 51 22 34 20 J2018+0831 19 46 51 59.3 164.2 -0.5 -12.4 -35 558 22 34 55 22 35 50 --- 19 48 21 59.4 164.9 -0.5 -11.9 55 565 22 34 21 22 35 50 MG2016 19 48 21 62.2 163.1 -0.5 -13.4 -35 565 22 36 25 22 39 20 --- 19 51 51 62.4 164.9 -0.5 -12.0 175 587 22 35 51 22 40 00 J2018+0831 19 52 32 59.6 166.9 -0.4 -10.3 5 587 22 40 00 22 41 00 --- 19 53 32 59.6 167.4 -0.4 -9.9 60 595 22 40 01 22 41 00 MG2016 19 53 32 62.4 165.8 -0.4 -11.3 -35 595 22 41 35 22 44 30 --- 19 57 02 62.6 167.6 -0.4 -9.9 175 617 22 41 01 22 44 30 J2018+0831 19 57 02 59.8 169.1 -0.4 -8.6 -35 617 22 45 05 22 46 00 --- 19 58 33 59.8 169.8 -0.3 -8.0 55 625 22 44 31 Schedule for GBT_VLBA (Code Gb ) 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 19 58 33 62.7 168.4 -0.4 -9.3 -36 625 22 46 36 22 49 30 --- 20 02 03 62.8 170.2 -0.3 -7.8 174 647 22 46 01 22 50 10 J2018+0831 20 02 43 59.9 171.9 -0.3 -6.4 4 647 22 50 10 22 51 10 --- 20 03 43 60.0 172.4 -0.3 -6.0 60 655 22 50 11 22 51 10 MG2016 20 03 43 62.8 171.1 -0.3 -7.1 -36 655 22 51 46 22 54 40 --- 20 07 14 62.9 173.0 -0.2 -5.6 174 677 22 51 11 22 54 40 J2018+0831 20 07 14 60.0 174.1 -0.2 -4.7 -36 677 22 55 16 22 56 10 --- 20 08 44 60.1 174.8 -0.2 -4.1 54 684 22 54 41 22 56 10 MG2016 20 08 44 63.0 173.8 -0.2 -5.0 -36 684 22 56 46 22 59 40 --- 20 12 15 63.0 175.7 -0.1 -3.4 174 706 22 56 11 23 00 20 J2018+0831 20 12 55 60.1 176.9 -0.1 -2.4 4 706 23 00 20 23 01 20 --- 20 13 55 60.1 177.4 -0.1 -2.1 60 714 23 00 21 23 01 20 MG2016 20 13 55 63.0 176.6 -0.1 -2.7 -36 714 23 01 56 23 04 50 --- 20 17 26 63.1 178.5 -0.0 -1.2 174 737 23 01 21 23 04 50 J2018+0831 20 17 26 60.2 179.2 -0.0 -0.7 -36 737 23 05 26 23 06 20 --- 20 18 56 60.2 179.9 -0.0 -0.1 54 744 23 04 51 23 06 20 MG2016 20 18 56 63.1 179.3 -0.0 -0.6 -36 744 23 06 56 23 09 50 --- 20 22 26 63.1 181.2 0.0 1.0 174 766 23 06 21 23 10 30 J2018+0831 20 23 07 60.1 182.0 0.1 1.6 4 766 23 10 30 23 11 30 --- 20 24 07 60.1 182.5 0.1 2.0 60 774 23 10 31 23 11 30 MG2016 20 24 07 63.1 182.1 0.1 1.7 -36 774 23 12 06 23 15 00 --- 20 27 37 63.0 184.0 0.1 3.2 174 796 23 11 31 23 15 00 J2018+0831 20 27 37 60.1 184.2 0.1 3.3 -36 796 23 15 36 23 16 30 --- 20 29 08 60.1 185.0 0.2 3.9 54 803 23 15 01 23 16 30 MG2016 20 29 08 63.0 184.8 0.1 3.8 -36 803 23 17 06 23 20 00 --- 20 32 38 62.9 186.7 0.2 5.3 174 825 23 16 31 23 20 40 J2018+0831 20 33 18 60.0 187.0 0.2 5.6 4 825 23 20 40 23 21 40 --- 20 34 18 60.0 187.5 0.3 5.9 60 833 23 20 41 23 21 40 MG2016 20 34 18 62.9 187.6 0.2 6.1 -36 833 23 22 16 23 25 10 --- 20 37 49 62.8 189.5 0.3 7.6 174 856 23 21 41 Schedule for GBT_VLBA (Code Gb ) 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 20 37 49 59.9 189.2 0.3 7.3 -36 856 23 25 46 23 26 40 --- 20 39 19 59.8 190.0 0.3 7.9 54 863 23 25 11 23 26 40 MG2016 20 39 19 62.8 190.3 0.3 8.2 -36 863 23 27 16 23 30 10 --- 20 42 50 62.6 192.1 0.4 9.7 174 885 23 26 41 23 30 50 J2018+0831 20 43 30 59.7 192.0 0.4 9.5 4 885 23 30 50 23 31 50 --- 20 44 30 59.6 192.5 0.4 9.9 60 893 23 30 51 23 31 50 MG2016 20 44 30 62.5 193.0 0.4 10.3 -36 893 23 32 26 23 35 20 --- 20 48 01 62.4 194.8 0.5 11.8 174 915 23 31 51 23 35 20 J2018+0831 20 48 01 59.5 194.2 0.5 11.2 -36 915 23 35 56 23 36 50 --- 20 49 31 59.4 194.9 0.5 11.7 54 922 23 35 21 23 36 50 MG2016 20 49 31 62.3 195.6 0.5 12.4 -36 922 23 37 26 23 40 20 --- 20 53 01 62.1 197.4 0.5 13.8 174 945 23 36 51 23 41 00 J2018+0831 20 53 42 59.2 196.8 0.6 13.3 4 945 23 41 00 23 42 00 --- 20 54 42 59.1 197.3 0.6 13.6 60 952 23 41 01 23 42 00 MG2016 20 54 42 62.0 198.2 0.6 14.5 -36 952 23 42 36 23 45 30 --- 20 58 12 61.8 200.0 0.6 15.9 174 975 23 42 01 23 45 30 J2018+0831 20 58 12 58.9 198.9 0.7 14.9 -36 975 23 46 06 23 47 00 --- 20 59 43 58.8 199.6 0.7 15.4 54 982 23 45 31 23 47 00 MG2016 20 59 43 61.7 200.7 0.7 16.4 -36 982 23 47 36 23 50 30 --- 21 03 13 61.4 202.5 0.7 17.8 174 1004 23 47 01 23 51 10 J2018+0831 21 03 53 58.5 201.5 0.7 16.9 4 1004 23 51 10 23 52 10 --- 21 04 53 58.4 202.0 0.8 17.3 60 1012 23 51 11 23 52 10 MG2016 21 04 53 61.3 203.3 0.7 18.4 -35 1012 23 52 45 23 55 40 --- 21 08 24 61.0 205.0 0.8 19.7 175 1034 23 52 11 23 55 40 J2018+0831 21 08 24 58.2 203.6 0.8 18.5 -36 1034 23 56 16 23 57 10 --- 21 09 54 58.1 204.2 0.8 19.0 54 1041 23 55 41 --- Start: Tue 29 Oct 2019 Day 302 -- Stop: Wed 30 Oct 2019 Day 303 --- 23 57 10 MG2016 21 09 54 60.9 205.7 0.8 20.3 -35 1041 23 57 45 00 00 40 --- 21 13 25 60.6 207.3 0.9 21.5 175 1064 23 57 11 Schedule for GBT_VLBA (Code Gb ) 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 21 14 05 57.7 206.1 0.9 20.4 5 1064 00 01 20 00 02 20 --- 21 15 05 57.6 206.5 0.9 20.7 60 1072 00 01 21 00 02 20 MG2016 21 15 05 60.4 208.1 0.9 22.1 -35 1072 00 02 55 00 05 50 --- 21 18 36 60.1 209.7 1.0 23.3 175 1094 00 02 21 00 05 50 J2018+0831 21 18 36 57.3 208.0 1.0 21.8 -35 1094 00 06 25 00 07 20 --- 21 20 06 57.2 208.6 1.0 22.3 55 1101 00 05 51 00 07 20 MG2016 21 20 06 60.0 210.4 1.0 23.8 -35 1101 00 07 55 00 10 50 --- 21 23 36 59.6 211.9 1.1 25.0 175 1124 00 07 21 00 11 30 J2018+0831 21 24 17 56.8 210.4 1.1 23.6 5 1124 00 11 30 00 12 30 --- 21 25 17 56.7 210.8 1.1 23.9 60 1131 00 11 31 00 12 30 MG2016 21 25 17 59.4 212.6 1.1 25.5 -35 1131 00 13 05 00 16 00 --- 21 28 47 59.0 214.2 1.1 26.7 175 1154 00 12 31 00 16 00 J2018+0831 21 28 47 56.3 212.2 1.2 25.0 -35 1154 00 16 35 00 17 30 --- 21 30 18 56.1 212.8 1.2 25.4 55 1161 00 16 01 00 17 30 MG2016 21 30 18 58.9 214.8 1.2 27.1 -35 1161 00 18 05 00 21 00 --- 21 33 48 58.5 216.3 1.2 28.2 175 1184 00 17 31 00 21 40 J2018+0831 21 34 28 55.7 214.5 1.3 26.7 5 1184 00 21 40 00 22 40 --- 21 35 28 55.6 214.9 1.3 26.9 60 1191 00 21 41 00 22 40 MG2016 21 35 28 58.3 216.9 1.3 28.7 -35 1191 00 23 15 00 26 10 --- 21 38 59 57.9 218.4 1.3 29.7 175 1214 00 22 41 00 26 10 J2018+0831 21 38 59 55.2 216.2 1.3 27.9 -35 1214 00 26 45 00 27 40 --- 21 40 29 55.0 216.8 1.4 28.3 55 1221 00 26 11 00 27 40 MG2016 21 40 29 57.7 219.0 1.3 30.2 -35 1221 00 28 15 00 31 10 --- 21 44 00 57.2 220.3 1.4 31.2 175 1243 00 27 41 00 31 50 J2018+0831 21 44 40 54.5 218.4 1.4 29.5 5 1243 00 31 50 00 32 50 --- 21 45 40 54.4 218.7 1.4 29.7 60 1251 00 31 51 00 32 50 MG2016 21 45 40 57.0 221.0 1.4 31.6 -35 1251 00 33 25 00 36 20 --- 21 49 11 56.6 222.3 1.5 32.6 175 1274 00 32 51 00 36 20 J2018+0831 21 49 11 53.9 220.0 1.5 30.6 -35 1274 00 36 55 00 37 50 --- 21 50 41 53.8 220.6 1.5 31.0 55 1281 00 36 21 Schedule for GBT_VLBA (Code Gb ) 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 21 50 41 56.4 222.9 1.5 33.0 -35 1281 00 38 25 00 41 20 --- 21 54 11 55.9 224.2 1.6 33.8 175 1303 00 37 51 00 42 00 J2018+0831 21 54 52 53.2 222.0 1.6 32.0 5 1303 00 42 00 00 43 00 --- 21 55 52 53.1 222.4 1.6 32.3 60 1311 00 42 01 00 44 30 3C345 21 57 22 31.2 298.3 5.2 63.8 -69 1311 00 45 39 00 49 30 --- 22 02 23 30.4 298.8 5.3 63.3 231 1341 00 44 31 00 54 00 J2018+0831 22 06 54 51.6 226.1 1.8 34.8 116 1341 00 54 00 00 55 00 --- 22 07 54 51.4 226.4 1.8 35.0 60 1349 00 54 01 00 55 00 MG2016 22 07 54 54.0 228.9 1.8 37.1 -34 1349 00 55 34 00 58 30 --- 22 11 24 53.4 230.1 1.9 37.8 176 1371 00 55 01 00 58 30 J2018+0831 22 11 24 50.9 227.6 1.9 35.8 -34 1371 00 59 04 01 00 00 --- 22 12 55 50.7 228.0 1.9 36.1 56 1378 00 58 31 01 00 00 MG2016 22 12 55 53.2 230.6 1.9 38.1 -34 1378 01 00 34 01 03 30 --- 22 16 25 52.7 231.7 1.9 38.8 176 1401 01 00 01 01 04 10 J2018+0831 22 17 05 50.1 229.4 2.0 36.9 6 1401 01 04 10 01 05 10 --- 22 18 05 49.9 229.7 2.0 37.1 60 1409 01 04 11 01 05 10 MG2016 22 18 05 52.4 232.2 2.0 39.2 -34 1409 01 05 44 01 08 40 --- 22 21 36 51.9 233.3 2.0 39.9 176 1432 01 05 11 01 08 40 J2018+0831 22 21 36 49.4 230.7 2.0 37.8 -34 1432 01 09 14 01 10 10 --- 22 23 06 49.2 231.2 2.1 38.1 56 1439 01 08 41 01 10 10 MG2016 22 23 06 51.6 233.7 2.0 40.1 -35 1439 01 10 45 01 13 40 --- 22 26 37 51.1 234.8 2.1 40.8 175 1461 01 10 11 01 14 20 J2018+0831 22 27 17 48.5 232.4 2.1 38.9 6 1461 01 14 20 01 15 20 --- 22 28 17 48.4 232.7 2.2 39.1 60 1469 01 14 21 01 15 20 MG2016 22 28 17 50.8 235.3 2.1 41.1 -35 1469 01 15 55 01 18 50 --- 22 31 48 50.2 236.3 2.2 41.7 175 1492 01 15 21 01 18 50 J2018+0831 22 31 48 47.8 233.7 2.2 39.7 -34 1492 01 19 24 01 20 20 --- 22 33 18 47.6 234.1 2.2 39.9 56 1499 01 18 51 01 20 20 MG2016 22 33 18 50.0 236.7 2.2 41.9 -35 1499 01 20 55 01 23 50 --- 22 36 48 49.4 237.7 2.3 42.5 175 1521 01 20 21 Schedule for GBT_VLBA (Code Gb ) 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 22 37 29 46.9 235.3 2.3 40.6 6 1521 01 24 30 01 25 30 --- 22 38 29 46.8 235.6 2.3 40.8 60 1529 01 24 31 01 25 30 MG2016 22 38 29 49.1 238.2 2.3 42.8 -35 1529 01 26 05 01 29 00 --- 22 41 59 48.5 239.1 2.4 43.3 175 1552 01 25 31 01 29 00 J2018+0831 22 41 59 46.2 236.5 2.4 41.4 -34 1552 01 29 34 01 30 30 --- 22 43 30 46.0 236.9 2.4 41.6 56 1559 01 29 01 01 30 30 MG2016 22 43 30 48.3 239.5 2.4 43.5 -35 1559 01 31 05 01 34 00 --- 22 47 00 47.7 240.4 2.4 44.1 175 1581 01 30 31 01 34 40 J2018+0831 22 47 40 45.3 238.0 2.5 42.2 6 1581 01 34 40 01 35 40 --- 22 48 40 45.1 238.3 2.5 42.4 60 1589 01 34 41 01 35 40 MG2016 22 48 40 47.4 240.9 2.5 44.3 -35 1589 01 36 15 01 39 10 --- 22 52 11 46.8 241.8 2.5 44.8 175 1612 01 35 41 01 39 10 J2018+0831 22 52 11 44.5 239.2 2.6 42.9 -34 1612 01 39 44 01 40 40 --- 22 53 41 44.3 239.5 2.6 43.1 56 1619 01 39 11 01 40 40 MG2016 22 53 41 46.5 242.2 2.6 45.0 -35 1619 01 41 15 01 44 10 --- 22 57 12 45.9 243.0 2.6 45.4 175 1641 01 40 41 01 44 50 J2018+0831 22 57 52 43.5 240.6 2.6 43.6 6 1641 01 44 50 01 45 50 --- 22 58 52 43.4 240.8 2.7 43.8 60 1649 01 44 51 01 45 50 MG2016 22 58 52 45.6 243.5 2.6 45.7 -35 1649 01 46 25 01 49 20 --- 23 02 23 45.0 244.3 2.7 46.1 175 1672 01 45 51 01 49 20 J2018+0831 23 02 23 42.8 241.7 2.7 44.2 -34 1672 01 49 54 01 50 50 --- 23 03 53 42.5 242.1 2.7 44.4 56 1679 01 49 21 01 50 50 MG2016 23 03 53 44.8 244.7 2.7 46.3 -35 1679 01 51 25 01 54 20 --- 23 07 23 44.1 245.5 2.8 46.7 175 1701 01 50 51 01 55 00 J2018+0831 23 08 04 41.8 243.0 2.8 44.9 6 1701 01 55 00 01 56 00 --- 23 09 04 41.6 243.3 2.8 45.0 60 1709 01 55 01 01 56 00 MG2016 23 09 04 43.8 245.9 2.8 46.9 -35 1709 01 56 35 01 59 30 --- 23 12 34 43.2 246.7 2.9 47.2 175 1732 01 56 01 01 59 30 J2018+0831 23 12 34 41.0 244.1 2.9 45.4 -34 1732 02 00 04 02 01 00 --- 23 14 05 40.7 244.4 2.9 45.6 56 1739 01 59 31 Schedule for GBT_VLBA (Code Gb ) 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 23 14 05 42.9 247.0 2.9 47.4 -35 1739 02 01 35 02 04 30 --- 23 17 35 42.3 247.8 3.0 47.8 175 1761 02 01 01 02 05 10 J2018+0831 23 18 15 40.0 245.4 3.0 46.1 6 1761 02 05 10 02 06 10 --- 23 19 15 39.8 245.6 3.0 46.2 60 1769 02 05 11 02 06 10 MG2016 23 19 15 42.0 248.2 3.0 47.9 -35 1769 02 06 45 02 09 40 --- 23 22 46 41.4 249.0 3.0 48.3 175 1792 02 06 11 02 09 40 J2018+0831 23 22 46 39.2 246.4 3.1 46.5 -34 1792 02 10 14 02 11 10 --- 23 24 16 38.9 246.7 3.1 46.7 56 1799 02 09 41 02 11 10 MG2016 23 24 16 41.1 249.3 3.1 48.4 -35 1799 02 11 45 02 14 40 --- 23 27 47 40.4 250.0 3.1 48.7 175 1822 02 11 11 02 15 20 J2018+0831 23 28 27 38.2 247.6 3.2 47.1 6 1822 02 15 20 02 16 20 --- 23 29 27 38.0 247.8 3.2 47.2 60 1829 02 15 21 02 16 20 MG2016 23 29 27 40.1 250.4 3.2 48.9 -34 1829 02 16 54 02 19 50 --- 23 32 58 39.5 251.1 3.2 49.2 176 1852 02 16 21 02 19 50 J2018+0831 23 32 58 37.3 248.6 3.2 47.5 -34 1852 02 20 24 02 21 20 --- 23 34 28 37.1 248.9 3.3 47.6 56 1859 02 19 51 02 21 20 MG2016 23 34 28 39.2 251.4 3.2 49.3 -34 1859 02 21 54 02 24 50 --- 23 37 58 38.6 252.2 3.3 49.6 176 1882 02 21 21 02 25 30 J2018+0831 23 38 39 36.3 249.7 3.3 48.0 6 1882 02 25 30 02 26 30 --- 23 39 39 36.1 250.0 3.3 48.1 60 1890 02 25 31 02 26 30 MG2016 23 39 39 38.2 252.5 3.3 49.7 -34 1890 02 27 04 02 30 00 --- 23 43 09 37.6 253.2 3.4 49.9 176 1912 02 26 31 02 30 00 J2018+0831 23 43 09 35.5 250.7 3.4 48.4 -34 1912 02 30 34 02 31 30 --- 23 44 40 35.2 251.0 3.4 48.5 56 1919 02 30 01 02 31 30 MG2016 23 44 40 37.3 253.5 3.4 50.0 -34 1919 02 32 04 02 35 00 --- 23 48 10 36.6 254.2 3.5 50.3 176 1942 02 31 31 02 35 40 J2018+0831 23 48 50 34.4 251.8 3.5 48.8 6 1942 02 35 40 02 36 40 --- 23 49 50 34.2 252.0 3.5 48.9 60 1950 02 35 41 02 36 40 MG2016 23 49 50 36.3 254.5 3.5 50.4 -34 1950 02 37 14 02 40 10 --- 23 53 21 35.7 255.2 3.6 50.6 176 1972 02 36 41 Schedule for GBT_VLBA (Code Gb ) 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 23 53 21 33.6 252.7 3.6 49.1 -34 1972 02 40 44 02 41 40 --- 23 54 51 33.3 253.0 3.6 49.2 56 1980 02 40 11 02 41 40 MG2016 23 54 51 35.4 255.5 3.6 50.7 -34 1980 02 42 14 02 45 10 --- 23 58 22 34.7 256.1 3.6 50.9 176 2002 02 41 41 02 45 50 J2018+0831 23 59 02 32.5 253.8 3.7 49.5 6 2002 02 45 50 02 46 50 --- 00 00 02 32.3 254.0 3.7 49.6 60 2010 02 45 51 02 46 50 MG2016 00 00 02 34.4 256.4 3.7 51.0 -34 2010 02 47 24 02 50 20 --- 00 03 33 33.7 257.1 3.7 51.2 176 2033 02 46 51 02 50 20 J2018+0831 00 03 33 31.7 254.6 3.7 49.8 -34 2033 02 50 54 02 51 50 --- 00 05 03 31.4 254.9 3.8 49.9 56 2040 02 50 21 02 51 50 MG2016 00 05 03 33.4 257.4 3.7 51.3 -34 2040 02 52 24 02 55 20 --- 00 08 33 32.8 258.0 3.8 51.4 176 2063 02 51 51 02 56 00 J2018+0831 00 09 14 30.6 255.7 3.8 50.1 6 2063 02 56 00 02 57 00 --- 00 10 14 30.4 255.9 3.9 50.2 60 2070 02 56 01 02 57 00 MG2016 00 10 14 32.4 258.3 3.8 51.5 -34 2070 02 57 34 03 00 30 --- 00 13 44 31.8 259.0 3.9 51.7 176 2093 02 57 01 03 00 30 J2018+0831 00 13 44 29.7 256.5 3.9 50.4 -34 2093 03 01 04 03 02 00 --- 00 15 15 29.4 256.8 3.9 50.5 56 2100 03 00 31 03 02 00 MG2016 00 15 15 31.5 259.2 3.9 51.8 -34 2100 03 02 34 03 05 30 --- 00 18 45 30.8 259.8 4.0 51.9 176 2123 03 02 01 03 06 10 J2018+0831 00 19 25 28.6 257.5 4.0 50.7 6 2123 03 06 10 03 07 10 --- 00 20 25 28.4 257.7 4.0 50.7 60 2131 03 06 11 03 07 10 MG2016 00 20 25 30.5 260.1 4.0 52.0 -34 2131 03 07 44 03 10 40 --- 00 23 56 29.8 260.7 4.1 52.1 176 2153 03 07 11 03 10 40 J2018+0831 00 23 56 27.8 258.3 4.1 50.9 -34 2153 03 11 14 03 12 10 --- 00 25 26 27.5 258.6 4.1 50.9 56 2161 03 10 41 03 12 10 MG2016 00 25 26 29.5 261.0 4.1 52.1 -34 2161 03 12 44 03 15 40 --- 00 28 57 28.8 261.6 4.1 52.3 176 2183 03 12 11 03 16 20 J2018+0831 00 29 37 26.7 259.3 4.2 51.1 6 2183 03 16 20 03 17 20 --- 00 30 37 26.5 259.5 4.2 51.2 60 2191 03 16 21 Schedule for GBT_VLBA (Code Gb ) 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 00 30 37 28.5 261.9 4.2 52.3 -34 2191 03 17 54 03 20 50 --- 00 34 08 27.8 262.5 4.2 52.4 176 2214 03 17 21 03 20 50 J2018+0831 00 34 08 25.8 260.1 4.2 51.3 -34 2214 03 21 24 03 22 20 --- 00 35 38 25.5 260.4 4.3 51.4 56 2221 03 20 51 03 22 20 MG2016 00 35 38 27.5 262.7 4.3 52.5 -34 2221 03 22 54 03 25 50 --- 00 39 09 26.9 263.3 4.3 52.6 176 2244 03 22 21 03 26 30 J2018+0831 00 39 49 24.7 261.1 4.3 51.5 6 2244 03 26 30 03 27 30 --- 00 40 49 24.5 261.2 4.4 51.5 60 2251 03 26 31 03 27 30 MG2016 00 40 49 26.5 263.6 4.3 52.6 -34 2251 03 28 04 03 31 00 --- 00 44 19 25.9 264.2 4.4 52.7 176 2274 03 27 31 03 31 00 J2018+0831 00 44 19 23.8 261.8 4.4 51.6 -34 2274 03 31 34 03 32 30 --- 00 45 50 23.6 262.1 4.4 51.7 56 2281 03 31 01 03 32 30 MG2016 00 45 50 25.6 264.4 4.4 52.7 -34 2281 03 33 04 03 36 00 --- 00 49 20 24.9 265.0 4.5 52.8 176 2304 03 32 31 03 36 40 J2018+0831 00 50 00 22.7 262.8 4.5 51.8 6 2304 03 36 40 03 37 40 --- 00 51 00 22.5 262.9 4.5 51.8 60 2312 03 36 41 03 37 40 MG2016 00 51 00 24.5 265.3 4.5 52.8 -34 2312 03 38 14 03 41 10 --- 00 54 31 23.9 265.9 4.6 52.9 176 2334 03 37 41 03 41 10 J2018+0831 00 54 31 21.9 263.5 4.6 51.9 -34 2334 03 41 44 03 42 40 --- 00 56 01 21.6 263.8 4.6 52.0 56 2341 03 41 11 03 42 40 MG2016 00 56 01 23.6 266.1 4.6 52.9 -34 2341 03 43 14 03 46 10 --- 00 59 32 22.9 266.7 4.7 52.9 176 2364 03 42 41 03 46 50 J2018+0831 01 00 12 20.8 264.5 4.7 52.0 6 2364 03 46 50 03 47 50 --- 01 01 12 20.6 264.6 4.7 52.1 60 2372 03 46 51 03 47 50 MG2016 01 01 12 22.6 266.9 4.7 53.0 -34 2372 03 48 24 03 51 20 --- 01 04 43 21.9 267.5 4.7 53.0 176 2394 03 47 51 03 51 20 J2018+0831 01 04 43 19.9 265.2 4.8 52.1 -33 2394 03 51 53 03 52 50 --- 01 06 13 19.6 265.4 4.8 52.2 57 2402 03 51 21 03 52 50 MG2016 01 06 13 21.6 267.7 4.8 53.0 -34 2402 03 53 24 03 56 20 --- 01 09 44 20.9 268.3 4.8 53.0 176 2425 03 52 51 Schedule for GBT_VLBA (Code Gb ) 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 01 10 24 18.8 266.1 4.9 52.2 7 2425 03 57 00 03 58 00 --- 01 11 24 18.6 266.3 4.9 52.2 60 2432 03 57 01 03 58 00 MG2016 01 11 24 20.6 268.5 4.9 53.1 -34 2432 03 58 34 04 01 30 --- 01 14 54 19.9 269.1 4.9 53.1 176 2455 03 58 01 04 01 30 J2018+0831 01 14 54 17.9 266.8 4.9 52.3 -33 2455 04 02 03 04 03 00 --- 01 16 25 17.6 267.1 5.0 52.3 57 2462 04 01 31 04 03 00 MG2016 01 16 25 19.6 269.3 4.9 53.1 -34 2462 04 03 34 04 06 30 --- 01 19 55 18.9 269.9 5.0 53.1 176 2485 04 03 01 04 07 10 J2018+0831 01 20 35 16.8 267.7 5.0 52.3 7 2485 04 07 10 04 08 10 --- 01 21 35 16.6 267.9 5.0 52.3 60 2493 04 07 11 04 08 10 MG2016 01 21 35 18.6 270.1 5.0 53.1 -34 2493 04 08 44 04 11 40 --- 01 25 06 17.9 270.7 5.1 53.1 176 2515 04 08 11 04 11 40 J2018+0831 01 25 06 15.9 268.4 5.1 52.4 -33 2515 04 12 13 04 13 10 --- 01 26 36 15.6 268.7 5.1 52.4 57 2523 04 11 41 04 13 10 MG2016 01 26 36 17.6 270.9 5.1 53.1 -34 2523 04 13 44 04 16 40 --- 01 30 07 16.9 271.5 5.2 53.1 176 2545 04 13 11 04 17 20 J2018+0831 01 30 47 14.8 269.3 5.2 52.4 7 2545 04 17 20 04 18 20 --- 01 31 47 14.6 269.5 5.2 52.4 60 2553 04 17 21 04 18 20 MG2016 01 31 47 16.6 271.7 5.2 53.0 -34 2553 04 18 54 04 21 50 --- 01 35 18 15.9 272.3 5.3 53.0 176 2576 04 18 21 04 21 50 J2018+0831 01 35 18 13.9 270.0 5.3 52.4 -33 2576 04 22 23 04 23 20 --- 01 36 48 13.6 270.2 5.3 52.4 57 2583 04 21 51 04 23 20 MG2016 01 36 48 15.6 272.5 5.3 53.0 -33 2583 04 23 53 04 26 50 --- 01 40 19 14.9 273.0 5.3 53.0 177 2606 04 23 21 04 27 30 J2018+0831 01 40 59 12.8 270.9 5.4 52.4 7 2606 04 27 30 04 28 30 --- 01 41 59 12.6 271.1 5.4 52.4 60 2614 04 27 31 04 28 30 MG2016 01 41 59 14.6 273.3 5.4 53.0 -33 2614 04 29 03 04 32 00 --- 01 45 29 13.9 273.8 5.4 52.9 177 2636 04 28 31 04 32 00 J2018+0831 01 45 29 11.9 271.6 5.4 52.4 -33 2636 04 32 33 04 33 30 --- 01 47 00 11.6 271.8 5.5 52.4 57 2644 04 32 01 Schedule for GBT_VLBA (Code Gb ) 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 01 47 00 13.6 274.0 5.4 52.9 -33 2644 04 34 03 04 37 00 --- 01 50 30 12.9 274.6 5.5 52.8 177 2667 04 33 31 04 37 40 J2018+0831 01 51 10 10.8 272.5 5.5 52.3 7 2667 04 37 40 04 38 40 --- 01 52 10 10.6 272.6 5.6 52.3 60 2674 04 37 41 04 38 40 MG2016 01 52 10 12.6 274.8 5.5 52.8 -33 2674 04 39 13 04 42 10 --- 01 55 41 11.9 275.4 5.6 52.7 177 2697 04 38 41 04 42 10 J2018+0831 01 55 41 9.9 273.2 5.6 52.3 -33 2697 04 42 43 04 43 40 --- 01 57 11 9.6 273.4 5.6 52.3 57 2704 04 42 11 04 43 40 MG2016 01 57 11 11.6 275.6 5.6 52.7 -33 2704 04 44 13 04 47 10 --- 02 00 42 10.9 276.1 5.7 52.6 177 2727 04 43 41 04 47 50 J2018+0831 02 01 22 8.8 274.0 5.7 52.2 7 2727 04 47 50 04 48 50 --- 02 02 22 8.6 274.2 5.7 52.2 60 2735 04 47 51 04 48 50 MG2016 02 02 22 10.6 276.4 5.7 52.6 -33 2735 04 49 23 04 52 20 --- 02 05 53 9.9 276.9 5.8 52.5 177 2758 04 48 51 04 52 20 J2018+0831 02 05 53 7.9 274.7 5.8 52.1 -33 2758 04 52 53 04 53 50 --- 02 07 23 7.6 275.0 5.8 52.1 57 2765 04 52 21 04 53 50 MG2016 02 07 23 9.6 277.1 5.8 52.5 -33 2765 04 54 23 04 57 20 --- 02 10 54 8.9 277.7 5.8 52.4 177 2788 04 53 51 04 58 00 J2018+0831 02 11 34 6.8 275.6 5.9 52.0 7 2788 04 58 00 04 59 00 --- 02 12 34 6.6 275.7 5.9 52.0 60 2796 04 58 01 04 59 00 MG2016 02 12 34 8.6 277.9 5.9 52.4 -33 2796 04 59 33 05 02 30 --- 02 16 04 7.9 278.4 5.9 52.3 177 2818 04 59 01 05 04 00 MG2016 02 17 35 7.6 278.7 6.0 52.2 69 2818 05 04 00 05 07 30 --- 02 21 05 7.0 279.2 6.0 52.1 210 2845 05 04 01 05 09 10 MG2016 02 22 45 6.6 279.5 6.0 52.1 79 2845 05 09 10 05 12 40 --- 02 26 16 6.0 280.0 6.1 D 51.9 0 2873 05 09 11 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: gbt6cmc LO1=7.868, LO2=12.732, LO3=10.5 Setup group: 1 Station: GBT_VLBA 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= 5636.00 5636.00 5636.00 5636.00 5636.00 5636.00 5636.00 5636.00 Net SB= U U U U U U U U IF SB = L L L L L L L L Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 2 3 4 5 6 7 8 BBC SB= L L L L L L L L IF = A C A C A C A C The following frequency sets based on these setups were used. Frequency Set: 15 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= 775.75 775.75 743.75 743.75 711.75 711.75 679.75 679.75 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= 735.75 735.75 703.75 703.75 CRD bw= 16.00 16.00 16.00 16.00 Matching frequency sets: 15 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