Nakano Note (Nakano wa Kangaeru noda) NK 3610 P/2018 K1 (Weiland)
The following improved orbital elements, by S. Nakano, are from 97 observations 2017 Nov. 6 to 2018 June 7. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.53 arc second. K. Kadota, Ageo, gives m1 = 14.8 on 2018 May 26 and m1 = 14.7 on June 7. Epoch = 2018 Mar. 23.0 TT T = 2018 Apr. 6.89497 +/- 0.00326 (m.e.) TT Peri. = 325.00140 +/- 0.00150 Node = 260.00195 +/- 0.00015 (2000.0) Inc. = 164.19263 +/- 0.00014 q = 1.8791652 +/- 0.0000159 AU e = 0.9371391 +/- 0.0000723 a = 29.8940291 +/- 0.0344505 AU n' = 0.00603014 +/- 0.00001039 P = 163.447 +/- 0.2827205 years (+/- 103.3 days) The predicted orbit for the 2181 return is as follows: T = 2181 June 1.36621 TT Epoch = 2181 May 27.0 TT Peri. = 325.16704 e = 0.9404372 Node = 260.14645 (2000.0) a = 31.1103955 AU Inc. = 164.28163 n'= 0.00567997 q = 1.8530224 AU P = 173.523 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2017/ 180526 Q62 1.2- 0.6+ 180527 I52 0.7+ 0.5+ 171106 F51 0.1- 0.0 180526 Q62 0.7- 0.9- 180527 I52 0.3+ 0.0 171106 F51 0.0 0.0 180526 E23 0.9- 1.6+ 180527 I52 0.6+ 0.1+ 171106 F51 0.1+ 0.1- 180526 E23 0.0 0.7- 180527 W88 0.2- 0.6- 2018/ 180526 Q62 1.6- 0.0 180527 I52 0.3+ 0.1+ 180524 F51 0.2+ 0.2+ 180526 E23 0.8- 0.2+ 180527 W88 0.0 0.6- 180524 F51 0.3+ 0.2+ 180526 E23 0.1+ 1.1- 180527 W88 0.4- 0.6- 180525 T08 0.3- 0.6- 180526 E23 0.2+ 0.5- 180528 W96 0.8- 0.6+ 180525 T08 0.6- 1.0- 180526 Q62 0.4+ 0.5+ 180528 W96 1.3+ 0.2- 180525 T08 0.6- 0.8- 180526 Q62 0.0 0.3+ 180528 W96 0.5- 1.2+ 180525 T08 0.6- 0.4- 180526 Q62 0.1+ 0.4+ 180528 W96 0.5+ 1.6+ 180525 T08 0.5- 0.2- 180526 Q62 0.5- 0.0 180528 W96 0.9- 0.0 180525 T08 0.3- 0.2- 180526 Q62 0.3- 0.5+ 180528 W96 0.5+ 0.1- 180525 T08 0.7+ 0.3- 180526 Q62 0.3- 0.3- 180528 W96 1.2+ 0.1+ 180525 Q62 0.3+ 0.3+ 180526 349 0.3+ 0.6- 180528 Y00 0.3- 0.1- 180525 Q62 0.6+ 0.0 180526 349 0.4+ 0.6- 180528 Y00 0.9- 0.1- 180525 Q62 0.8+ 0.1+ 180526 372 0.2+ 0.1+ 180528 Y00 0.3- 0.1- 180525 Q62 0.3+ 0.0 180526 372 0.2+ 0.1+ 180528 Y00 0.2- 0.3- 180525 Q62 0.1+ 0.0 180526 Q62 0.5+ 0.3+ 180528 Q62 0.2+ 0.2- 180525 Q62 0.1+ 0.4+ 180526 Q62 0.5- 0.4+ 180528 Q62 0.3- 0.1- 180526 I47 0.7- 0.4+ 180526 Q62 0.2+ 0.2+ 180528 Q62 0.0 0.3+ 180526 I47 0.4- 0.4- 180526 Q62 0.4- 0.1+ 180529 H47 1.0- 0.3- 180526 W88 0.5+ 0.3+ 180526 Q62 0.3+ 0.2+ 180529 H47 0.2+ 0.0 180526 W88 0.4- 0.6- 180526 Q62 0.8- 0.6- 180530 Y00 0.3+ 0.0 180526 W88 0.8+ 0.2+ 180526 Q62 0.2+ 0.1+ 180530 Y00 0.4- 1.1- 180526 W88 0.0 0.3- 180526 Q62 0.6+ 0.1+ 180530 691 0.0 0.2+ 180526 W88 0.1- 0.3- 180526 Q62 0.3+ 0.4+ 180530 691 0.6- 0.0 180526 Q62 1.7+ 0.4- 180527 Y00 0.1- 1.1- 180607 Q23 0.5+ 0.4+ 180526 Q62 0.2+ 0.5+ 180527 Y00 1.1- 1.1- 180607 Q23 0.4+ 0.1+ 180526 Q62 0.7+ 0.9+ 180527 W88 0.4- 0.6- 180607 349 0.1- 0.5- 180526 Q62 1.6- 0.2+ 180527 W88 0.5- 0.2- 180607 349 0.3- 0.3- 180526 Q62 1.3- 0.3+ 180527 H06 1.5+ 0.0 180607 349 0.3+ 0.0 180526 Q62 0.1+ 0.1+ 180527 H06 0.1- 0.4+ 180607 349 0.0 0.2+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2018 June 12