COVER INFORMATION Station: URUMQI (Code Ur ) Experiment: e-EVN observation of a possibly imminent merger of SMBH binary Exp. Code: RA005 Schedule Version: 3.00 Processed by SCHED version: 11.60 Release 11.6; April 2020 PI: Tao AN Address: Shanghai Astronomical Observatory No. 80 Nandan Road Shanghai 200030 China Phone: +86-21-64386191 EMAIL: antao@shao.ac.cn Fax: Phone during observation: Observing mode: Phase-referencing Notes: 1.6 GHz, dual polarisation, 1024 Mbps eVLBI, 5.5 hours at GST: 0800-1330 Drafted by Yingkang Zhang Schedule for URUMQI (Code Ur ) Page 2 e-EVN observation of a possibly imminent merger of SMBH binary 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 ---------------------------------------------------------------------------------------- --- Sun 27 Feb 2022 Day 58 --- Next scan frequencies: 1626.49 1626.49 1626.49 1626.49 1690.49 1690.49 1690.49 1690.49 Next BBC frequencies: 326.49 326.49 326.49 326.49 390.49 390.49 390.49 390.49 Next scan bandwidths: 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 21 30 00 4C39.25 13 49 30 42.0 -71.8 4.4 62.4 0 0 21 30 00 21 35 00 --- 13 54 30 41.1 -71.2 4.4 62.0 300 38 21 30 01 21 38 00 J1430+2303 13 57 31 68.3 158.5 -0.6 -16.8 -54 38 21 38 00 21 42 30 --- 14 02 02 68.6 161.2 -0.5 -14.7 216 73 21 38 01 21 42 30 P1427+2348 14 02 02 69.5 162.8 -0.4 -13.6 -6 73 No stop 21 44 00 --- 14 03 32 69.6 163.7 -0.4 -12.8 84 85 21 42 31 21 44 00 J1430+2303 14 03 32 68.7 162.2 -0.5 -14.0 -6 85 No stop 21 48 30 --- 14 08 03 68.9 165.0 -0.4 -11.8 264 119 21 44 01 21 49 20 P1427+2348 14 08 53 69.8 167.2 -0.3 -10.1 44 119 21 49 20 21 50 50 --- 14 10 23 69.9 168.2 -0.3 -9.3 90 131 21 49 21 21 50 50 J1430+2303 14 10 23 69.0 166.4 -0.3 -10.6 -6 131 No stop 21 55 20 --- 14 14 54 69.2 169.3 -0.3 -8.4 264 165 21 50 51 21 55 20 P1427+2348 14 14 54 70.0 171.2 -0.2 -7.0 -6 165 No stop 21 56 50 --- 14 16 24 70.1 172.2 -0.2 -6.2 84 177 21 55 21 21 56 50 J1430+2303 14 16 24 69.3 170.3 -0.2 -7.6 -6 177 No stop 22 01 20 --- 14 20 55 69.4 173.2 -0.2 -5.3 264 212 21 56 51 22 01 20 P1427+2348 14 20 55 70.2 175.2 -0.1 -3.8 -6 212 No stop 22 02 50 --- 14 22 25 70.2 176.2 -0.1 -3.0 84 223 22 01 21 22 03 30 J1430+2303 14 23 05 69.4 174.6 -0.1 -4.2 34 223 22 03 30 22 06 30 --- 14 26 06 69.5 176.6 -0.1 -2.7 180 246 22 03 31 22 06 30 P1427+2348 14 26 06 70.2 178.7 -0.0 -1.0 -6 246 No stop 22 08 00 --- 14 27 36 70.2 179.7 -0.0 -0.2 84 258 22 06 31 22 08 00 J1430+2303 14 27 36 69.5 177.6 -0.1 -1.9 -6 258 No stop 22 12 30 --- 14 32 07 69.5 180.5 0.0 0.4 264 292 22 08 01 22 12 30 P1427+2348 14 32 07 70.2 182.8 0.1 2.2 -6 292 No stop 22 14 00 --- 14 33 37 70.2 183.8 0.1 3.0 84 304 22 12 31 22 14 00 J1430+2303 14 33 37 69.5 181.5 0.0 1.2 -6 304 No stop 22 18 30 --- 14 38 08 69.4 184.5 0.1 3.5 264 338 22 14 01 Schedule for URUMQI (Code Ur ) Page 3 e-EVN observation of a possibly imminent merger of SMBH binary 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 ---------------------------------------------------------------------------------------- --- Sun 27 Feb 2022 Day 58 --- 22 19 20 P1427+2348 14 38 58 70.1 187.4 0.2 5.8 44 338 22 19 20 22 20 50 --- 14 40 28 70.1 188.4 0.2 6.6 90 350 22 19 21 22 20 50 J1430+2303 14 40 28 69.4 186.0 0.2 4.7 -6 350 No stop 22 25 20 --- 14 44 59 69.3 189.0 0.2 7.0 264 385 22 20 51 22 25 20 P1427+2348 14 44 59 69.9 191.4 0.3 9.0 -6 385 No stop 22 26 50 --- 14 46 29 69.9 192.4 0.3 9.8 84 396 22 25 21 22 26 50 J1430+2303 14 46 29 69.3 189.9 0.3 7.8 -6 396 No stop 22 31 20 --- 14 51 00 69.1 192.8 0.3 10.1 264 431 22 26 51 22 31 20 P1427+2348 14 51 00 69.7 195.3 0.4 12.1 -7 431 No stop 22 32 50 --- 14 52 30 69.6 196.3 0.4 12.8 83 442 22 31 21 22 33 30 J1430+2303 14 53 10 69.0 194.2 0.4 11.1 34 442 22 33 30 22 36 30 --- 14 56 10 68.9 196.1 0.4 12.6 180 465 22 33 31 22 36 30 P1427+2348 14 56 10 69.4 198.6 0.5 14.6 -7 465 No stop 22 38 00 --- 14 57 41 69.3 199.5 0.5 15.4 83 477 22 36 31 22 38 00 J1430+2303 14 57 41 68.8 197.0 0.4 13.3 -6 477 No stop 22 42 30 --- 15 02 11 68.5 199.8 0.5 15.5 264 512 22 38 01 22 42 30 P1427+2348 15 02 11 69.0 202.3 0.6 17.5 -7 512 No stop 22 44 00 --- 15 03 42 68.9 203.2 0.6 18.2 83 523 22 42 31 22 44 00 J1430+2303 15 03 42 68.4 200.7 0.5 16.2 -7 523 No stop 22 48 30 --- 15 08 12 68.1 203.4 0.6 18.2 263 558 22 44 01 22 49 20 P1427+2348 15 09 03 68.5 206.4 0.7 20.6 43 558 22 49 20 22 50 50 --- 15 10 33 68.4 207.3 0.7 21.3 90 569 22 49 21 22 50 50 J1430+2303 15 10 33 67.9 204.7 0.7 19.2 -7 569 No stop 22 55 20 --- 15 15 04 67.6 207.3 0.7 21.2 263 604 22 50 51 22 55 20 P1427+2348 15 15 04 68.0 209.9 0.8 23.2 -7 604 No stop 22 56 50 --- 15 16 34 67.8 210.7 0.8 23.9 83 615 22 55 21 22 56 50 J1430+2303 15 16 34 67.5 208.1 0.8 21.8 -7 615 No stop 23 01 20 --- 15 21 05 67.1 210.6 0.8 23.7 263 650 22 56 51 23 01 20 P1427+2348 15 21 05 67.4 213.2 0.9 25.7 -7 650 No stop 23 02 50 --- 15 22 35 67.3 214.0 0.9 26.3 83 662 23 01 21 Schedule for URUMQI (Code Ur ) Page 4 e-EVN observation of a possibly imminent merger of SMBH binary 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 ---------------------------------------------------------------------------------------- --- Sun 27 Feb 2022 Day 58 --- 23 03 30 J1430+2303 15 23 15 66.9 211.8 0.9 24.5 33 662 23 03 30 23 06 30 --- 15 26 15 66.6 213.4 0.9 25.7 180 685 23 03 31 23 06 30 P1427+2348 15 26 15 66.9 215.9 1.0 27.7 -7 685 No stop 23 08 00 --- 15 27 46 66.7 216.7 1.0 28.2 83 696 23 06 31 23 08 00 J1430+2303 15 27 46 66.4 214.1 0.9 26.3 -6 696 No stop 23 12 30 --- 15 32 16 65.9 216.4 1.0 27.9 264 731 23 08 01 23 12 30 P1427+2348 15 32 16 66.2 218.9 1.1 29.9 -7 731 No stop 23 14 00 --- 15 33 47 66.0 219.7 1.1 30.4 83 742 23 12 31 23 14 00 J1430+2303 15 33 47 65.8 217.2 1.0 28.4 -6 742 No stop 23 18 30 --- 15 38 17 65.3 219.4 1.1 30.0 264 777 23 14 01 23 19 20 P1427+2348 15 39 07 65.4 222.2 1.2 32.2 44 777 23 19 20 23 20 50 --- 15 40 38 65.2 222.9 1.2 32.7 90 788 23 19 21 23 20 50 J1430+2303 15 40 38 65.0 220.5 1.2 30.8 -6 788 No stop 23 25 20 --- 15 45 08 64.4 222.5 1.2 32.2 264 823 23 20 51 23 25 20 P1427+2348 15 45 08 64.7 224.9 1.3 34.0 -6 823 No stop 23 26 50 --- 15 46 39 64.5 225.6 1.3 34.5 84 835 23 25 21 23 26 50 J1430+2303 15 46 39 64.3 223.2 1.3 32.7 -6 835 No stop 23 31 20 --- 15 51 09 63.7 225.2 1.3 34.0 264 869 23 26 51 23 31 20 P1427+2348 15 51 09 63.9 227.5 1.4 35.8 -6 869 No stop 23 32 50 --- 15 52 40 63.7 228.2 1.4 36.2 84 881 23 31 21 23 33 30 J1430+2303 15 53 20 63.4 226.1 1.4 34.6 34 881 23 33 30 23 36 30 --- 15 56 20 63.0 227.4 1.4 35.5 180 904 23 33 31 23 36 30 P1427+2348 15 56 20 63.2 229.7 1.5 37.2 -6 904 No stop 23 38 00 --- 15 57 51 63.0 230.3 1.5 37.6 84 915 23 36 31 23 38 00 J1430+2303 15 57 51 62.8 228.0 1.4 35.9 -6 915 No stop 23 42 30 --- 16 02 21 62.2 229.8 1.5 37.0 264 950 23 38 01 23 42 30 P1427+2348 16 02 21 62.3 232.1 1.6 38.7 -6 950 No stop 23 44 00 --- 16 03 52 62.1 232.6 1.6 39.0 84 962 23 42 31 23 44 00 J1430+2303 16 03 52 62.0 230.4 1.5 37.4 -6 962 No stop 23 48 30 --- 16 08 22 61.3 232.1 1.6 38.5 264 996 23 44 01 Schedule for URUMQI (Code Ur ) Page 5 e-EVN observation of a possibly imminent merger of SMBH binary 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 ---------------------------------------------------------------------------------------- --- Sun 27 Feb 2022 Day 58 --- 23 49 20 P1427+2348 16 09 12 61.3 234.6 1.7 40.3 44 996 23 49 20 23 50 50 --- 16 10 43 61.1 235.2 1.7 40.6 90 1008 23 49 21 23 50 50 J1430+2303 16 10 43 61.0 233.0 1.7 39.0 -6 1008 No stop 23 55 20 --- 16 15 13 60.3 234.6 1.7 40.0 264 1042 23 50 51 23 55 20 P1427+2348 16 15 13 60.4 236.8 1.8 41.5 -6 1042 No stop 23 56 50 --- 16 16 44 60.2 237.3 1.8 41.8 84 1054 23 55 21 --- Start: Sun 27 Feb 2022 Day 58 -- Stop: Mon 28 Feb 2022 Day 59 --- 23 56 50 J1430+2303 16 16 44 60.1 235.2 1.8 40.3 -6 1054 No stop 00 01 20 --- 16 21 14 59.4 236.7 1.8 41.2 264 1088 23 56 51 00 01 20 P1427+2348 16 21 14 59.5 238.8 1.9 42.7 -6 1088 No stop 00 02 50 --- 16 22 45 59.3 239.3 1.9 43.0 84 1100 00 01 21 00 03 30 J1430+2303 16 23 25 59.1 237.5 1.9 41.6 34 1100 00 03 30 00 06 30 --- 16 26 25 58.7 238.5 1.9 42.2 180 1123 00 03 31 00 06 30 P1427+2348 16 26 25 58.7 240.5 2.0 43.6 -6 1123 No stop 00 08 00 --- 16 27 55 58.4 241.0 2.0 43.9 84 1135 00 06 31 00 10 00 3C345 16 29 56 85.5 144.0 -0.2 -33.7 18 1135 00 10 00 00 15 00 --- 16 34 57 85.9 155.4 -0.1 -23.1 300 1173 00 10 01 00 16 30 P1427+2348 16 36 27 57.1 243.6 2.1 45.2 -2 1173 00 16 30 00 18 00 --- 16 37 57 56.8 244.0 2.2 45.4 88 1185 00 16 31 00 18 00 J1430+2303 16 37 57 56.8 242.1 2.1 44.1 -6 1185 No stop 00 22 30 --- 16 42 28 56.1 243.4 2.2 44.8 264 1219 00 18 01 00 22 30 P1427+2348 16 42 28 56.1 245.3 2.2 46.1 -6 1219 No stop 00 24 00 --- 16 43 58 55.8 245.7 2.3 46.3 84 1231 00 22 31 00 24 00 J1430+2303 16 43 58 55.9 243.9 2.2 45.0 -6 1231 No stop 00 28 30 --- 16 48 29 55.1 245.2 2.3 45.7 264 1265 00 24 01 00 29 20 P1427+2348 16 49 19 55.0 247.2 2.4 46.9 44 1265 00 29 20 00 30 50 --- 16 50 49 54.7 247.6 2.4 47.1 90 1277 00 29 21 00 30 50 J1430+2303 16 50 49 54.7 245.8 2.3 46.0 -6 1277 No stop 00 35 20 --- 16 55 20 54.0 247.0 2.4 46.5 264 1312 00 30 51 Schedule for URUMQI (Code Ur ) Page 6 e-EVN observation of a possibly imminent merger of SMBH binary 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 ---------------------------------------------------------------------------------------- --- Mon 28 Feb 2022 Day 59 --- 00 35 20 P1427+2348 16 55 20 53.9 248.8 2.5 47.7 -6 1312 No stop 00 36 50 --- 16 56 50 53.7 249.2 2.5 47.8 84 1323 00 35 21 00 36 50 J1430+2303 16 56 50 53.7 247.4 2.4 46.7 -6 1323 No stop 00 41 20 --- 17 01 21 53.0 248.6 2.5 47.2 264 1358 00 36 51 00 41 20 P1427+2348 17 01 21 52.9 250.4 2.6 48.3 -6 1358 No stop 00 42 50 --- 17 02 51 52.7 250.8 2.6 48.4 84 1369 00 41 21 00 43 30 J1430+2303 17 03 31 52.6 249.2 2.5 47.5 34 1369 00 43 30 00 46 30 --- 17 06 32 52.1 250.0 2.6 47.8 180 1392 00 43 31 00 46 30 P1427+2348 17 06 32 52.0 251.7 2.6 48.8 -6 1392 No stop 00 48 00 --- 17 08 02 51.8 252.0 2.7 48.9 84 1404 00 46 31 00 48 00 J1430+2303 17 08 02 51.8 250.3 2.6 47.9 -6 1404 No stop 00 52 30 --- 17 12 33 51.1 251.5 2.7 48.4 264 1438 00 48 01 00 52 30 P1427+2348 17 12 33 51.0 253.1 2.7 49.3 -6 1438 No stop 00 54 00 --- 17 14 03 50.7 253.5 2.8 49.4 84 1450 00 52 31 00 54 00 J1430+2303 17 14 03 50.8 251.8 2.7 48.5 -6 1450 No stop 00 58 30 --- 17 18 34 50.0 252.9 2.8 48.9 264 1485 00 54 01 00 59 20 P1427+2348 17 19 24 49.8 254.7 2.9 49.9 44 1485 00 59 20 01 00 50 --- 17 20 54 49.5 255.1 2.9 50.0 90 1496 00 59 21 01 00 50 J1430+2303 17 20 54 49.6 253.4 2.8 49.1 -6 1496 No stop 01 05 20 --- 17 25 25 48.8 254.5 2.9 49.4 264 1531 01 00 51 01 05 20 P1427+2348 17 25 25 48.7 256.1 3.0 50.3 -6 1531 No stop 01 06 50 --- 17 26 55 48.5 256.4 3.0 50.4 84 1542 01 05 21 01 06 50 J1430+2303 17 26 55 48.6 254.8 2.9 49.5 -6 1542 No stop 01 11 20 --- 17 31 26 47.8 255.8 3.0 49.8 264 1577 01 06 51 01 11 20 P1427+2348 17 31 26 47.7 257.4 3.1 50.7 -6 1577 No stop 01 12 50 --- 17 32 56 47.4 257.7 3.1 50.7 84 1588 01 11 21 01 13 30 J1430+2303 17 33 36 47.4 256.3 3.0 50.0 34 1588 01 13 30 01 16 30 --- 17 36 37 46.9 257.0 3.1 50.2 180 1612 01 13 31 01 16 30 P1427+2348 17 36 37 46.8 258.5 3.1 50.9 -6 1612 No stop 01 18 00 --- 17 38 07 46.5 258.8 3.2 51.0 84 1623 01 16 31 Schedule for URUMQI (Code Ur ) Page 7 e-EVN observation of a possibly imminent merger of SMBH binary 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 ---------------------------------------------------------------------------------------- --- Mon 28 Feb 2022 Day 59 --- 01 18 00 J1430+2303 17 38 07 46.6 257.3 3.1 50.2 -5 1623 No stop 01 22 30 --- 17 42 38 45.8 258.2 3.2 50.5 265 1658 01 18 01 01 22 30 P1427+2348 17 42 38 45.7 259.7 3.2 51.2 -5 1658 No stop 01 24 00 --- 17 44 08 45.4 260.0 3.3 51.3 85 1669 01 22 31 01 24 00 J1430+2303 17 44 08 45.5 258.6 3.2 50.6 -5 1669 No stop 01 28 30 --- 17 48 39 44.7 259.5 3.3 50.8 265 1704 01 24 01 01 29 20 P1427+2348 17 49 29 44.5 261.1 3.4 51.5 45 1704 01 29 20 01 30 50 --- 17 50 59 44.2 261.4 3.4 51.6 90 1715 01 29 21 01 30 50 J1430+2303 17 50 59 44.3 260.0 3.3 50.9 -5 1715 No stop 01 35 20 --- 17 55 30 43.5 260.9 3.4 51.1 265 1750 01 30 51 01 35 20 P1427+2348 17 55 30 43.4 262.3 3.5 51.8 -5 1750 No stop 01 36 50 --- 17 57 00 43.1 262.6 3.5 51.8 85 1762 01 35 21 01 36 50 J1430+2303 17 57 00 43.2 261.2 3.4 51.2 -5 1762 No stop 01 41 20 --- 18 01 31 42.4 262.1 3.5 51.3 265 1796 01 36 51 01 41 20 P1427+2348 18 01 31 42.3 263.5 3.6 51.9 -5 1796 No stop 01 42 50 --- 18 03 01 42.0 263.8 3.6 52.0 85 1808 01 41 21 01 43 30 J1430+2303 18 03 41 42.0 262.5 3.5 51.4 35 1808 01 43 30 01 46 30 --- 18 06 42 41.5 263.1 3.6 51.5 180 1831 01 43 31 01 46 30 P1427+2348 18 06 42 41.4 264.4 3.6 52.1 -5 1831 No stop 01 48 00 --- 18 08 12 41.1 264.7 3.7 52.1 85 1842 01 46 31 01 48 00 J1430+2303 18 08 12 41.2 263.3 3.6 51.5 -5 1842 No stop 01 52 30 --- 18 12 43 40.4 264.2 3.7 51.6 265 1877 01 48 01 01 52 30 P1427+2348 18 12 43 40.3 265.6 3.7 52.2 -5 1877 No stop 01 54 00 --- 18 14 13 40.0 265.8 3.8 52.2 85 1888 01 52 31 01 54 00 J1430+2303 18 14 13 40.1 264.5 3.7 51.7 -5 1888 No stop 01 58 30 --- 18 18 44 39.3 265.3 3.8 51.8 265 1923 01 54 01 01 59 20 P1427+2348 18 19 34 39.0 266.8 3.9 52.3 45 1923 01 59 20 02 00 50 --- 18 21 04 38.8 267.1 3.9 52.3 90 1935 01 59 21 02 00 50 J1430+2303 18 21 04 38.9 265.7 3.8 51.8 -5 1935 No stop 02 05 20 --- 18 25 35 38.1 266.6 3.9 51.9 265 1969 02 00 51 Schedule for URUMQI (Code Ur ) Page 8 e-EVN observation of a possibly imminent merger of SMBH binary 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 ---------------------------------------------------------------------------------------- --- Mon 28 Feb 2022 Day 59 --- 02 05 20 P1427+2348 18 25 35 37.9 267.9 4.0 52.4 -5 1969 No stop 02 06 50 --- 18 27 05 37.7 268.2 4.0 52.4 85 1981 02 05 21 02 06 50 J1430+2303 18 27 05 37.8 266.8 3.9 51.9 -5 1981 No stop 02 11 20 --- 18 31 36 37.0 267.6 4.0 52.0 265 2015 02 06 51 02 11 20 P1427+2348 18 31 36 36.9 268.9 4.1 52.4 -5 2015 No stop 02 12 50 --- 18 33 06 36.6 269.2 4.1 52.4 85 2027 02 11 21 02 13 30 J1430+2303 18 33 46 36.6 268.0 4.0 52.0 35 2027 02 13 30 02 16 30 --- 18 36 47 36.1 268.6 4.1 52.0 180 2050 02 13 31 02 16 30 P1427+2348 18 36 47 35.9 269.8 4.1 52.4 -5 2050 No stop 02 18 00 --- 18 38 17 35.6 270.1 4.2 52.4 85 2062 02 16 31 02 18 00 J1430+2303 18 38 17 35.8 268.8 4.1 52.0 -5 2062 No stop 02 22 30 --- 18 42 48 35.0 269.6 4.2 52.0 265 2096 02 18 01 02 22 30 P1427+2348 18 42 48 34.8 270.9 4.2 52.4 -5 2096 No stop 02 24 00 --- 18 44 18 34.5 271.1 4.3 52.4 85 2108 02 22 31 02 24 00 J1430+2303 18 44 18 34.7 269.9 4.2 52.0 -5 2108 No stop 02 28 30 --- 18 48 49 33.9 270.6 4.3 52.0 265 2142 02 24 01 02 29 20 P1427+2348 18 49 39 33.6 272.0 4.4 52.4 45 2142 02 29 20 02 30 50 --- 18 51 09 33.3 272.3 4.4 52.4 90 2154 02 29 21 02 30 50 J1430+2303 18 51 09 33.4 271.0 4.3 52.0 -5 2154 No stop 02 35 20 --- 18 55 40 32.6 271.8 4.4 52.0 265 2188 02 30 51 02 35 20 P1427+2348 18 55 40 32.5 273.0 4.5 52.3 -5 2188 No stop 02 36 50 --- 18 57 10 32.2 273.3 4.5 52.3 85 2200 02 35 21 02 36 50 J1430+2303 18 57 10 32.4 272.1 4.4 52.0 -5 2200 No stop 02 41 20 --- 19 01 41 31.5 272.8 4.5 51.9 265 2235 02 36 51 02 41 20 P1427+2348 19 01 41 31.4 274.0 4.6 52.2 -5 2235 No stop 02 42 50 --- 19 03 11 31.1 274.3 4.6 52.2 85 2246 02 41 21 02 43 30 J1430+2303 19 03 51 31.1 273.2 4.5 51.9 35 2246 02 43 30 02 46 30 --- 19 06 52 30.6 273.7 4.6 51.9 180 2269 02 43 31 02 46 30 P1427+2348 19 06 52 30.5 274.9 4.6 52.2 -5 2269 No stop 02 48 00 --- 19 08 22 30.2 275.1 4.7 52.1 85 2281 02 46 31 Schedule for URUMQI (Code Ur ) Page 9 e-EVN observation of a possibly imminent merger of SMBH binary 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 ---------------------------------------------------------------------------------------- --- Mon 28 Feb 2022 Day 59 --- 02 48 00 J1430+2303 19 08 22 30.3 273.9 4.6 51.8 -5 2281 No stop 02 52 30 --- 19 12 53 29.5 274.7 4.7 51.8 265 2315 02 48 01 02 52 30 P1427+2348 19 12 53 29.4 275.8 4.7 52.0 -5 2315 No stop 02 54 00 --- 19 14 23 29.1 276.1 4.8 52.0 85 2327 02 52 31 02 55 00 3C345 19 15 23 61.7 275.7 2.5 70.0 -8 2327 02 55 00 03 00 00 --- 19 20 24 60.8 276.4 2.6 69.8 292 2365 02 55 01 SETUP FILE INFORMATION: NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings. ======== Setup file: sess122.L1024 --- WARNING --- This group does not match an entry in the frequency catalog. This might be ok because the catalog is not complete. But be very careful to be sure that the setup is correct. Setup group: 14 Station: URUMQI Total bit rate: 1024 Format: MARK5B Bits per sample: 2 Sample rate: 64.000 Number of channels: 8 DBE type: DBBC_DDC Speedup factor: 1.00 Disk used to record data. 1st LO= 1300.00 1300.00 1300.00 1300.00 1300.00 1300.00 1300.00 1300.00 Net SB= L L U U L L U U IF SB = U U U U U U U U Pol. = RCP LCP RCP LCP RCP LCP RCP LCP BBC = 1 9 1 9 2 10 2 10 BBC SB= L L U U L L U U IF = A2 C1 A2 C1 A2 C1 A2 C1 The following frequency sets based on these setups were used. Frequency Set: 8 Setup file default. Used with PCAL = off LO sum= 1626.49 1626.49 1626.49 1626.49 1690.49 1690.49 1690.49 1690.49 BBC fr= 326.49 326.49 326.49 326.49 390.49 390.49 390.49 390.49 Bandwd= 32.00 32.00 32.00 32.00 32.00 32.00 32.00 32.00 Matching frequency sets: 8 Track assignments are: track1= 10, 14, 2, 6, 12, 16, 4, 8 barrel=roll_off POSITIONS OF SOURCES USED IN RECORDING SCANS Source Source position (RA/Dec) Error (B1950) (J2000) (Date) (mas) * J1430+2303 14 27 59.601806 * 14 30 16.055000 14 31 16.596793 0.00 23 17 02.67583 * 23 03 45.47000 22 57 41.15066 0.00 From catalog imbedded in main SCHED input file. from FIRST survey, ~ 1 mJy * P1427+2348 14 24 44.222647 * 14 27 00.391800 14 28 00.833226 0.00 24 01 25.78988 * 23 48 00.03800 23 41 51.89033 0.00 From catalog imbedded in main SCHED input file. 1.05 deg, S-K >100 mJy * 4C39.25 09 23 55.319216 * 09 27 03.013937 09 28 26.794070 0.31 J0927+3902 39 15 23.56644 * 39 02 20.85185 38 56 35.74524 0.16 0923+392 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc J0927+39 GSFC 2016a X/S astro solution, 250526 observations. * 3C345 16 41 17.606229 * 16 42 58.809967 16 43 43.111234 0.79 J1642+3948 39 54 10.81492 * 39 48 36.99399 39 45 49.57111 0.59 1641+399 /home/guest/rmc/SCHED/sched11.6/catalogs/sources.gsfc J1642+39 GSFC 2016a X/S astro solution, 53724 observations. SOURCE SCAN SUMMARY FOR SOURCES LISTED ABOVE Scan hours are for recording scans only. Baseline hours are only counted for scans above horizon at both ends. Source Setup file Frequency sets Observing hours (duplicates not shown) Scan Baseline J1430+2303 sess122.L1024 1 2 3 4 5 6 7 8 9 10 13 14 + 3.575 324.895 P1427+2348 sess122.L1024 1 2 3 4 5 6 7 8 9 10 13 14 + 1.325 101.966 4C39.25 sess122.L1024 1 2 3 4 5 7 8 9 10 13 14 15 0.083 7.583 3C345 sess122.L1024 1 2 3 4 5 6 7 8 9 10 13 14 + 0.167 12.338 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) J1430+2303 123.6 P1427+2348 124.2 4C39.25 144.8 3C345 95.2 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