Nakano Note (Nakano wa Kangaeru noda) NK 2835 P/WISE (2010 K2 = 2015 B3)
The following improved orbital elements, by S. Nakano, are from 62 observations 2010 to 2015. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.40 arc second. The residuals for recovery observations on 2015 January were -1.34 deg (R. A.) and +0.73 deg (Decl.) from the prediction in NK 2316 (= HICQ 2010) with the delta-T correction = +3.4 days. Epoch = 2015 Aug. 6.0 TT T = 2015 Aug. 16.78887 +/- 0.00042 (m.e.) TT Peri. = 334.78830 +/- 0.00023 Node = 275.56752 +/- 0.00007 (2000.0) Inc. = 11.93938 +/- 0.00002 q = 1.2762142 +/- 0.0000028 AU e = 0.5698459 +/- 0.0000009 a = 2.9668768 +/- 0.0000030 AU n' = 0.19286562 +/- 0.00000029 P = 5.110 +/- 0.0000077 years T = 2010 July 7.54841 TT Epoch = 2010 July 23.0 TT Peri. = 328.52578 e = 0.5899621 Node = 281.13169 (2000.0) a = 2.9225052 AU Inc. = 10.64523 n'= 0.19727458 q = 1.1983379 AU P = 4.996 years The predicted orbit for the 2020 return is as follows: T = 2020 Sept.26.18608 TT Epoch = 2020 Sept.28.0 TT Peri. = 334.91014 e = 0.5704142 Node = 275.51938 (2000.0) a = 2.9650792 AU Inc. = 11.95090 n'= 0.19304103 q = 1.2737560 AU P = 5.106 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2010/ 100529 C51 0.4- 0.1+ 100604 474 0.2- 0.1+ 100527 C51 0.1+ 0.2+ 100529 C51 0.4- 0.3+ 100604 474 0.3- 0.0 100527 C51 0.1+ 0.1- 100529 C51 0.6- 0.2+ 100604 474 0.1- 0.1+ 100527 C51 0.1+ 0.1+ 100603 H36 0.9+ 0.3+ 100604 474 0.3+ 0.0 100527 C51 0.0 0.1+ 100603 H36 (2.3+ 0.9-) 100708 D90 0.3- 0.4+ 100527 C51 0.0 0.2+ 100603 291 0.0 0.1- 100708 D90 0.2- 0.2+ 100527 C51 0.1- 0.2+ 100603 291 0.1- 0.1- 100708 D90 0.8+ 0.8- 100527 C51 0.1+ 0.2+ 100603 291 0.1+ 0.3- 100714 474 0.7- 0.2+ 100528 C51 0.3- 0.1- 100603 H06 1.0+ 1.7- 100714 474 0.5- 0.1+ 100528 C51 0.2- 0.4+ 100603 H06 1.8+ 1.2- 100714 474 0.5- 0.0 100528 C51 0.0 0.1- 100604 H21 0.9+ 0.1+ 100714 474 0.4- 0.0 100528 C51 0.1- 0.2+ 100604 H21 1.1+ 0.7+ 100721 D90 0.2+ 0.6+ 100528 C51 0.0 0.4- 100604 H21 0.4+ 1.1+ 100721 D90 0.9+ 0.4+ 100528 C51 0.1- 0.5+ 100604 H36 1.7- 0.7- 2015/ 100528 C51 0.0 0.0 100604 H36 0.4+ 0.9- 150126 F51 0.2+ 0.0 100528 C51 0.3- 0.0 100604 291 0.1- 0.2- 150126 F51 0.1+ 0.1- 100528 C51 0.0 0.2- 100604 291 0.2- 0.1- 150126 F51 0.1- 0.2+ 100528 C51 0.2- 0.2+ 100604 695 0.2- 0.2- 150318 F51 0.1- 0.0 100528 C51 0.1- 0.2+ 100604 291 0.0 0.1- 150318 F51 0.0 0.0 100528 C51 0.0 0.1+ 100604 695 0.2- 0.1- 150318 F51 0.1- 0.0 100528 C51 0.0 0.0 100604 695 0.0 0.6+ 150318 F51 0.0 0.1- 100529 C51 0.2- 0.0 100604 474 0.1- 0.0 ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2015 Mar. 27