Nakano Note (Nakano wa Kangaeru noda) NK 4057 C/2019 K1 (ATLAS)
The following improved orbital elements, by S. Nakano, are from 228 observations 2019 May 16 to 2020 Mar. 3. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.61 arc second. The comet has passed 1.20 AU from Jupiter on 2019 Feb. 22 UT. Residuals on 2020 March observations were -25" mainly for Declination from an orbit in NK 4017 (= HICQ 2020). Epoch = 2020 Feb. 1.0 TT T = 2020 Feb. 12.96337 +/- 0.00053 (m.e.) TT Peri. = 265.70680 +/- 0.00024 Node = 73.37489 +/- 0.00001 (2000.0) Inc. = 87.14886 +/- 0.00009 q = 2.0125864 +/- 0.0000051 AU e = 0.9997487 +/- 0.0000055 1/a = +0.0001249 +/- 0.0000028 1/AU origin = +0.000452 (Q= 8) future = +0.000554 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2019/ 190523 705 (2.0+ 0.6+) 190602 J22 1.5- 1.3+ 190516 T08 0.9- 0.8+ 190523 705 1.8+ 0.6+ 190602 J22 0.2- 0.4- 190516 T08 0.1- 0.0 190523 H01 0.2+ 0.4- 190602 L27 0.4- 1.8+ 190516 T08 0.1- 0.4- 190523 705 1.5+ 0.5+ 190602 L27 0.2+ 0.3+ 190516 T08 0.1- 0.3- 190523 H01 0.2+ 0.3- 190605 Q11 0.0 1.0+ 190516 T08 0.4+ 0.4+ 190523 H01 0.1+ 0.1- 190605 Q11 0.1- 0.8+ 190516 T08 1.1- 1.9+ 190523 T05 0.1- 0.1- 190605 Q11 0.1- 0.9+ 190517 K91 0.3- 0.6- 190523 T05 0.6- 0.6+ 190605 N55 1.3+ 0.0 190517 K91 0.2- 0.6- 190523 T05 0.5- 0.0 190605 N55 0.5+ 0.4- 190517 K91 0.3- 0.6- 190523 T05 0.1- 0.1+ 190605 N55 0.2+ 0.4+ 190517 K91 0.2- 0.7- 190523 T08 0.6- 0.2+ 190605 N55 0.3- 0.6+ 190517 K91 0.1- 0.6- 190523 T08 0.3- 0.0 190606 N55 0.0 0.5+ 190517 Q62 0.6+ 0.4- 190523 T08 0.1- 0.7+ 190606 N55 0.1- 0.1+ 190517 Q62 0.2+ 0.1- 190524 215 0.3+ 1.6+ 190606 N55 (4.0- 1.7-) 190518 X74 0.5+ 0.1+ 190524 215 0.8- 1.3+ 190607 N55 0.2- 0.2+ 190518 X74 0.3+ 0.2+ 190524 215 1.6- 1.4+ 190607 N55 0.1- 0.3+ 190518 X74 0.1+ 0.2+ 190524 G40 0.1- 0.5- 190607 N55 0.0 0.1+ 190518 Q62 0.8- 0.1- 190524 G40 0.7+ 0.7- 190613 349 0.1- 0.5+ 190518 Q62 0.3+ 0.2- 190524 H01 0.3+ 0.1- 190613 349 0.5+ 1.1+ 190518 Q62 0.2+ 0.2+ 190524 705 (2.1+ 0.4+) 190613 349 0.2- 1.2+ 190518 N55 0.7- 0.9+ 190524 705 1.8+ 0.6+ 190613 349 0.1+ 1.5+ 190518 N55 (1.0- 2.0+) 190524 H01 0.1+ 0.2- 190613 N55 0.1+ 0.3+ 190518 N55 1.2- 0.3+ 190524 705 1.8+ 0.4+ 190613 N55 0.1+ 0.7+ 190518 N55 0.3- 0.8+ 190524 H01 0.3+ 0.4- 190613 N55 0.3- 0.3+ 190518 N55 0.7- 0.2- 190524 H01 0.3+ 0.3- 190614 N55 0.2+ 0.2- 190519 585 0.4- 0.9+ 190524 349 0.4- 0.4+ 190614 N55 0.0 0.1+ 190519 585 0.4- 0.1- 190524 349 0.6- 0.9+ 190614 N55 0.1- 0.0 190519 L29 1.0- 0.8+ 190524 349 0.7- 0.7+ 190619 N55 0.1- 0.3+ 190519 L29 1.3- 1.3+ 190524 595 0.6- 0.6- 190619 N55 0.3- 0.0 190521 N55 0.5- 0.8- 190524 595 0.7- 0.5+ 190619 N55 0.2- 0.1+ 190521 N55 0.1- 0.6- 190525 H01 0.2+ 0.3- 190624 Q62 0.3+ 0.1+ 190521 N55 0.0 0.6- 190525 H01 0.5+ 0.3- 190624 Q62 0.4+ 0.1+ 190521 N55 0.8- 0.4+ 190525 H01 0.2+ 0.5- 190624 Q62 0.4+ 0.2+ 190521 N55 0.1- 0.1- 190525 H01 0.3+ 0.3- 190626 N55 0.2- 0.7- 190521 N55 0.1- 1.2- 190525 Q62 0.1+ 0.1- 190626 N55 0.2- 0.6- 190521 N55 0.1+ 0.2+ 190525 Q62 0.0 0.1- 190626 N55 0.0 0.3- 190522 807 0.1- 0.4- 190525 Q62 0.2+ 0.1+ 190629 J22 1.0+ 0.6+ 190522 807 0.2- 0.2- 190525 349 0.1- 0.5+ 190629 J22 0.5+ 0.5+ 190522 807 0.2+ 0.6- 190525 349 0.3- 0.8+ 190629 J22 (2.4+ 0.8+) 190522 H01 0.2- 0.0 190525 N55 0.6+ 0.0 190704 568 0.5- 0.3- 190522 H01 0.2+ 0.1- 190525 N55 0.9- 0.4- 190704 568 0.5- 0.3- 190522 H01 0.1- 0.6- 190525 N55 0.0 0.1+ 190704 568 0.5- 0.3- 190522 H01 0.1- 0.1- 190525 181 0.1+ 0.8- 190706 474 1.9+ 0.9+ 190522 H01 0.2- 0.0 190526 181 0.3+ 0.1+ 190706 474 0.8+ 0.4+ 190522 181 0.8- 0.3- 190526 C65 0.4+ 0.2- 190706 474 0.2+ 0.1+ 190522 181 0.1- 0.2+ 190526 C65 0.1+ 0.5- 190706 474 0.3+ 0.2+ 190522 Q62 0.0 0.0 190526 G40 0.3+ 0.7- 190722 Q62 0.0 0.3+ 190522 Q62 0.2- 0.0 190526 G40 0.2+ 0.1+ 190722 Q62 0.3+ 0.2+ 190522 Q62 0.2+ 0.5- 190526 Q11 0.3- 0.5+ 190722 Q62 0.1- 0.1- 190522 N55 0.0 0.3+ 190526 Q11 0.3- 0.5+ 190726 474 0.1- 0.0 190522 N55 0.4+ 0.5+ 190526 Q11 0.1- 0.7+ 190726 474 0.1- 0.1+ 190522 N55 0.9- 1.3- 190526 N55 0.2+ 1.3+ 190726 474 0.2- 0.0 190522 L34 1.9- 1.2- 190526 N55 0.4- 0.5+ 190727 J22 1.1+ 0.8+ 190522 L34 0.1- 0.1- 190526 N55 0.1- 0.7+ 190727 J22 1.6+ 0.8+ 190522 L01 0.7+ 0.2- 190526 N55 0.4- 0.5+ 190727 J22 0.4+ 0.8+ 190522 L01 1.0- 0.4+ 190526 N55 0.1+ 0.4+ 190903 474 0.3+ 0.3+ 190522 L01 1.1- 0.4+ 190527 N55 0.1- 0.2+ 190903 474 0.7+ 0.7+ 190522 I93 0.3- 0.3+ 190527 N55 0.5- 0.1+ 190903 474 0.5+ 0.3- 190523 I93 0.4- 0.8+ 190527 N55 0.4+ 0.7+ 190921 R57 1.2+ 0.5- 190523 I93 1.2- 1.3+ 190528 J22 0.7- 1.8+ 190921 R57 1.2+ 0.3- 190523 Z84 0.2+ 0.1+ 190528 J22 0.7- 0.8+ 190921 R57 1.2+ 0.5- 190523 Z84 0.1+ 0.0 190528 J22 1.2- 1.3+ 191226 Q38 1.6- 1.2- 190523 Z84 0.1- 0.1- 190529 Q11 0.5- 1.1+ 191226 Q38 (2.0- 1.8-) 190523 C65 0.1+ 0.0 190529 Q11 0.5- 1.2+ 191226 Q38 (2.7- 2.2-) 190523 C65 0.2+ 0.4- 190529 Q11 0.5- 1.3+ 2020/ 190523 C65 0.3+ 0.3- 190529 C95 0.5+ 0.7+ 200113 W88 0.3+ 1.0- 190523 C65 0.2+ 0.2- 190529 C95 0.3+ 1.8+ 200113 W88 1.0- 1.3- 190523 C65 0.1+ 0.0 190530 C95 0.6- 1.2+ 200223 474 0.2- 0.0 190523 C65 0.4+ 0.1- 190530 A77 1.0- 0.1+ 200223 474 0.3- 0.1+ 190523 C65 0.1+ 0.2- 190530 A77 (2.1- 2.0+) 200223 474 0.2- 0.0 190523 W88 0.1- 1.0- 190530 A77 (8.6- 3.8+) 200227 Q38 0.7+ 0.5- 190523 W88 0.3- 0.4+ 190530 T12 0.2+ 0.2- 200227 Q38 0.4- 0.5+ 190523 H01 0.1+ 0.1- 190530 T12 0.2+ 0.2- 200227 Q38 0.6+ 0.0 190523 H36 0.1- 1.3+ 190530 T12 0.2+ 0.2- 200303 X03 0.4- 0.7+ 190523 H01 0.0 0.4- 190530 T12 0.2+ 0.2- 200303 X03 0.4- 0.4+ 190523 H36 0.9- 0.3+ 190531 G40 0.1+ 0.6- 200303 X03 0.3- 0.0 190523 H36 0.1+ 0.4- 190531 G40 0.1+ 0.2+ 200303 X03 0.2- 0.1- 190523 705 1.0+ 0.6+ 190601 204 0.2- 0.6+ 200303 X03 0.2- 0.1- 190523 705 1.2+ 0.4+ 190601 204 0.1- 0.1+ 200303 X03 0.5- 0.1- 190523 705 1.2+ 0.3+ 190602 J22 1.0- 1.5+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2020 Mar. 14