Nakano Note (Nakano wa Kangaeru noda) NK 2902 P/2014 A3 (PANSTARRS)
The following improved orbital elements, by S. Nakano, are from 56 observations 2014 Jan. 9 to 2015 Feb. 23. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.42 arc second. This orbit depends upon only one night observations in 2015. See an orbit in HICQ 2014. Epoch = 2013 Apr. 18.0 TT T = 2013 Apr. 21.94992 +/- 0.01249 (m.e.) TT Peri. = 213.58942 +/- 0.00479 Node = 230.77021 +/- 0.00068 (2000.0) Inc. = 13.69913 +/- 0.00006 q = 3.5492301 +/- 0.0001347 AU e = 0.2436416 +/- 0.0000430 a = 4.6925245 +/- 0.0000683 AU n' = 0.09696037 +/- 0.00000212 P = 10.165 +/- 0.0002221 years (+/- 0.08 day) The predicted orbit for the 2023 return is as follows: T = 2023 Apr. 22.45075 TT Epoch = 2023 Apr. 6.0 TT Peri. = 214.16370 e = 0.2464353 Node = 229.97821 (2000.0) a = 4.6073240 AU Inc. = 13.71746 n'= 0.09966231 q = 3.4719166 AU P = 9.889 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2014/ 140112 926 0.1+ 0.1- 140203 C10 0.2- 0.8- 140109 F51 0.1+ 0.2- 140126 Q62 1.7+ 0.9+ 140203 W96 0.5- 0.3- 140109 F51 0.1- 0.3- 140126 Q62 1.3+ 0.7+ 140203 W96 0.5- 0.5+ 140109 F51 0.2- 0.3- 140127 372 0.7- 0.0 140204 474 0.2+ 0.4+ 140110 807 0.1- 0.2+ 140127 372 0.4- 0.1+ 140204 474 0.1- 0.4+ 140110 807 0.4+ 0.4- 140128 474 0.1+ 0.3+ 140204 474 0.0 0.3+ 140110 807 0.2- 0.2- 140128 474 0.0 0.0 140204 474 0.4- 0.2+ 140110 926 0.1- 0.1- 140128 474 0.1- 0.4+ 140208 Q62 0.2+ 0.2+ 140110 926 0.0 0.2- 140128 474 0.0 0.6+ 140208 Q62 0.1+ 0.4+ 140110 926 0.6- 0.2+ 140128 474 0.2+ 0.1+ 140208 Q62 0.1+ 0.4+ 140110 291 0.0 0.1- 140128 474 0.2- 0.2- 140320 215 0.5+ 0.9+ 140110 H06 0.9+ 0.6+ 140128 474 0.1- 0.0 140320 215 0.2+ 0.1+ 140110 291 0.0 0.1- 140128 474 0.2+ 0.2+ 140320 215 0.5+ 0.5- 140110 H06 0.7+ 0.5+ 140128 474 0.2- 0.1- 2015/ 140110 H06 0.4+ 0.2- 140128 474 0.1- 0.2- 150223 F51 0.2- 0.1- 140110 291 0.1+ 0.5+ 140128 474 0.2+ 0.3+ 150223 F51 0.1+ 0.2- 140111 291 0.1+ 0.0 140131 474 0.3- 0.6+ 150223 F51 0.1+ 0.1+ 140111 291 0.2+ 0.2- 140131 474 0.3+ 0.0 150223 F51 0.0 0.1+ 140111 291 0.3- 0.1- 140131 474 0.2- 1.5+ 140112 926 0.2- 0.3+ 140202 C10 0.6- 0.3- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2015 May 16