Nakano Note (Nakano wa Kangaeru noda) NK 2656 P/2014 D2 (Catalina-PANSTARRS)

The following improved orbital elements, by S. Nakano, are from 65 observations 2013 Jan. 21 to 2014 Mar. 21. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.50 arc second. Epoch = 2015 Feb. 27.0 TT T = 2015 Feb. 23.29683 +/- 0.00477 (m.e.) TT Peri. = 323.51336 +/- 0.00173 Node = 271.68077 +/- 0.00030 (2000.0) Inc. = 10.47983 +/- 0.00003 q = 3.1395201 +/- 0.0000389 AU e = 0.2821853 +/- 0.0000052 a = 4.3737197 +/- 0.0000144 AU n' = 0.10775257 +/- 0.00000053 P = 9.147 +/- 0.0000451 years The predicted orbit for the 2024 return is as follows: T = 2024 Apr. 30.21165 TT Epoch = 2024 May 10.0 TT Peri. = 323.68889 e = 0.2809265 Node = 271.58108 (2000.0) a = 4.3894591 AU Inc. = 10.46805 n'= 0.10717354 q = 3.1563439 AU P = 9.196 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2013/ 140308 958 0.3- 0.7+ 140309 246 0.1+ 0.4+ 130121 F51 0.0 0.1+ 140308 958 0.6- 0.5+ 140309 246 0.2+ 0.1+ 131204 F51 0.0 0.1+ 140308 958 0.4- 0.4+ 140309 246 0.3- 0.5+ 131204 F51 0.1+ 0.0 140308 203 0.2- 1.1+ 140309 246 0.3+ 0.9- 131204 F51 0.0 0.1+ 140308 203 0.5+ 0.1- 140309 246 0.3+ 0.3+ 131204 F51 0.0 0.0 140309 I89 0.2+ 0.4- 140309 246 0.0 0.2+ 2014/ 140309 I89 0.1+ 0.0 140309 246 0.3+ 0.0 140117 F51 0.3- 0.4- 140309 I89 0.3- 0.6+ 140309 246 0.0 0.3- 140117 F51 0.2- 0.3- 140309 958 0.6- 0.4+ 140310 W96 0.7- 0.2+ 140213 F51 0.2+ 0.2- 140309 958 0.1- 0.4+ 140310 W96 0.1- 0.4- 140213 F51 0.2+ 0.1- 140309 958 0.7- 0.2+ 140310 W96 0.4+ 0.3- 140221 F51 0.3+ 0.2- 140309 I47 0.6+ 0.4+ 140310 349 0.0 0.1+ 140227 703 1.0- 1.3+ 140309 I47 0.5+ 0.2+ 140310 349 0.2- 0.2- 140227 703 0.8- 0.5+ 140309 I47 0.5+ 0.7- 140320 D90 0.8+ 0.2+ 140227 703 1.6- 0.5+ 140309 Q62 0.4- 0.2+ 140320 D90 0.3+ 0.3+ 140227 703 0.4- 1.0+ 140309 Q62 0.3- 0.3+ 140320 D90 0.3+ 0.1- 140227 F51 0.1+ 0.2- 140309 Q62 0.2- 0.5+ 140320 215 0.1+ 0.2+ 140227 F51 0.3+ 0.1- 140309 D90 0.7- 0.4+ 140320 215 0.1- 0.3+ 140306 703 1.2- 0.9+ 140309 D90 1.0+ 0.1- 140320 215 0.0 0.4+ 140306 703 1.1- 0.8+ 140309 D90 0.5+ 0.3- 140321 D88 0.0 0.4+ 140306 703 1.3- 0.3- 140309 B74 0.4- 0.7- 140321 D88 0.7+ 1.4+ 140306 703 0.5- 1.1+ 140309 B74 0.1- 0.4- 140307 568 0.1+ 0.1- 140309 B74 0.6- 0.3+ ( ) -------- Rejected Obs.

Associate of the CBAT Syuichi Nakano 2014 Mar. 29

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