Nakano Note (Nakano wa Kangaeru noda) NK 2905 C/2014 N2 (PANSTARRS)
The following improved orbital elements, by S. Nakano, are from 50 observations 2014 July 2 to 2015 Mar. 12. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.55 arc second. The comet will pass 1.66 AU from Jupiter on 2016 Jan. 22 UT. Epoch = 2014 Sept.20.0 TT T = 2014 Oct. 8.22711 +/- 0.00086 (m.e.) TT Peri. = 237.86011 +/- 0.00030 Node = 143.80450 +/- 0.00005 (2000.0) Inc. = 133.01351 +/- 0.00006 q = 2.1844035 +/- 0.0000043 AU e = 0.9994948 +/- 0.0000139 1/a = +0.0002313 +/- 0.0000064 1/AU origin = +0.000819 (Q= 7) future = +0.000293 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2014/ 140704 E23 0.1+ 1.1- 140802 Q62 0.2- 0.0 140702 F51 0.0 0.0 140704 E23 0.1+ 0.8- 140802 Q62 0.4- 0.1+ 140702 F51 0.0 0.1+ 140704 E23 0.8- 0.2- 140820 E07 0.4- 0.2- 140702 F51 0.1- 0.1+ 140707 Q62 0.1- 0.5+ 140820 E07 0.6- 0.6+ 140702 F51 0.2+ 0.1+ 140707 Q62 0.3- 0.4+ 140820 E07 0.1+ 0.2- 140703 W96 0.8- 0.9- 140707 Q62 0.8- 0.0 140911 Q62 0.6- 1.0- 140703 W96 0.9- 0.5- 140707 Q62 0.6- 0.2+ 140911 Q62 0.3- 0.6- 140703 W96 0.6- 0.2- 140708 F51 0.1- 0.0 140911 Q62 0.4- 0.4- 140703 W96 1.1- 0.1- 140708 F51 0.0 0.0 140919 E07 1.9+ 1.0+ 140703 568 0.4+ 0.0 140708 F51 0.0 0.2+ 140919 E07 0.6+ 0.6- 140703 568 0.4+ 0.0 140708 F51 0.0 0.1- 141011 Q62 0.4+ 0.5- 140703 568 0.4+ 0.0 140719 Q62 0.3- 0.0 141011 Q62 0.3+ 0.4- 140703 Q62 0.0 0.1- 140719 Q62 0.2- 0.1+ 141011 Q62 0.2+ 0.2- 140703 Q62 0.2- 0.1+ 140719 Q62 0.0 0.3+ 2015/ 140703 Q62 1.1- 0.1+ 140728 Q62 0.1+ 0.4+ 150312 Q62 0.4- 0.6+ 140704 W96 1.9- 1.8- 140728 Q62 0.0 0.3+ 150312 Q62 0.2+ 0.0 140704 W96 0.8- 0.7- 140728 Q62 0.3- 0.1+ 140704 W96 0.6- 0.9- 140802 Q62 1.0- 0.2- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2015 May 17