Nakano Note (Nakano wa Kangaeru noda) NK 2494 P/2010 N1 (WISE)
The following improved orbital elements, by S. Nakano, are from 52 observations 2010 Apr. 13 to Aug. 9. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.53 arc second. See an orbit in HICQ 2010/2011. Epoch = 2010 Sept. 1.0 TT T = 2010 Aug. 16.15485 +/- 0.00051 (m.e.) TT Peri. = 153.49624 +/- 0.00025 Node = 113.21121 +/- 0.00056 (2000.0) Inc. = 12.87626 +/- 0.00011 q = 1.4945157 +/- 0.0000080 AU e = 0.5337767 +/- 0.0000224 a = 3.2055795 +/- 0.0000483 AU n' = 0.17172924 +/- 0.00000388 P = 5.739 +/- 0.0001298 years (+/- 0.05 day) The predicted orbit for the 2016 return is as follows: T = 2016 July 13.88321 TT Epoch = 2016 July 31.0 TT Peri. = 160.85136 e = 0.4965929 Node = 106.10203 (2000.0) a = 3.2875532 AU Inc. = 15.36379 n'= 0.16534645 q = 1.6549776 AU P = 5.961 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2010/ 100706 C51 0.4+ 0.3- 100710 H21 0.5+ 0.0 100413 703 0.4+ 0.0 100706 C51 0.0 0.3- 100710 H21 0.5+ 0.1- 100413 703 1.4+ 0.6- 100706 C51 0.5+ 1.2- 100710 H21 0.5+ 0.1- 100413 703 1.4- 1.1+ 100706 C51 0.4+ 0.3- 100710 H21 0.3+ 0.1- 100413 703 0.8- 0.7+ 100706 C51 0.1+ 0.3+ 100710 568 0.2- 0.0 100508 703 0.1- 1.5- 100706 C51 0.7+ 0.1- 100710 568 0.2- 0.0 100508 703 0.4+ 0.1- 100706 C51 0.1+ 0.0 100710 568 0.2- 0.0 100508 703 0.2+ 0.4- 100706 C51 0.3+ 0.2- 100710 568 0.2- 0.0 100508 703 0.1+ 1.3- 100706 C51 0.0 0.4+ 100710 568 0.2- 0.0 100518 703 0.5+ 0.6+ 100706 C51 0.2+ 0.3- 100710 568 0.1- 0.0 100518 703 0.2+ 1.5+ 100706 C51 0.0 0.4- 100715 568 0.3- 0.0 100518 703 1.4+ 0.3+ 100707 C51 0.7+ 0.3+ 100806 D90 0.7- 0.8+ 100518 703 1.1- 1.4+ 100707 C51 0.4+ 0.5- 100806 D90 0.1- 0.6+ 100705 C51 0.5+ 0.3- 100707 C51 0.0 0.4- 100806 D90 0.9+ 0.5+ 100705 C51 0.4+ 0.1- 100707 C51 0.1+ 0.5+ 100809 215 0.9+ 0.2- 100705 C51 0.7+ 0.6- 100707 C51 0.1+ 0.3- 100809 215 1.8+ 1.1+ 100705 C51 0.5+ 0.3- 100707 C51 0.1+ 0.0 100809 215 0.9+ 0.4+ 100706 C51 0.3+ 0.4+ 100710 H21 0.5+ 0.1- ( ) -------- Rejected Obs.
Associate of Central Bureau for Astronomical Telegrams Syuichi Nakano 2013 May 27