Nakano Note (Nakano wa Kangaeru noda) NK 3102 P/2015 T5 (Sheppard-Tholen)
The following improved orbital elements, by S. Nakano, are from 20 observations 2015 Oct. 13 to 2016 Feb. 2. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.25 arc second. Epoch = 2016 Jan. 13.0 TT T = 2016 Jan. 22.08154 +/- 0.74468 (m.e.) TT Peri. = 61.72802 +/- 0.03395 Node = 311.19522 +/- 0.00120 (2000.0) Inc. = 11.04864 +/- 0.00013 q = 9.3386939 +/- 0.0000965 AU e = 0.6658401 +/- 0.0000648 a = 27.9467789 +/- 0.0001942 AU n' = 0.00667124 +/- 0.00000007 P = 147.740 +/- 0.0015400 years (+/- 0.56 day) The predicted orbit for the 2165 return is as follows: T = 2165 Mar. 30.09530 TT Epoch = 2165 Mar. 12.0 TT Peri. = 62.03274 e = 0.6730670 Node = 310.89326 (2000.0) a = 28.6162043 AU Inc. = 11.04158 n'= 0.00643852 q = 9.3555803 AU P = 153.080 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2015/ 151103 568 0.0 0.0 151117 568 0.0 0.1- 151013 568 0.0 0.1- 151105 568 0.0 0.0 2016/ 151013 568 0.0 0.1- 151107 568 0.1+ 0.0 160107 568 0.0 0.0 151013 568 0.1+ 0.0 151107 568 0.1+ 0.0 160107 568 0.0 0.1+ 151102 H06 0.4- 1.0+ 151107 568 0.1+ 0.0 160202 568 0.0 0.0 151102 H06 1.0- 0.3+ 151108 291 0.6- 0.5+ 160202 568 0.0 0.1- 151102 H06 1.1- 0.3+ 151108 291 0.5- 0.6+ 151103 568 0.1- 0.0 151117 568 0.0 0.1- ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2016 May 5