Nakano Note (Nakano wa Kangaeru noda) NK 2813 C/2011 J2 - C (LINEAR)
The following improved orbital elements, by S. Nakano, are from 98 observations 2011 Mar. 10 to 2014 Dec. 6 using selected observations of principal component before 2014 Mar. and excepting observations between 2014 Apr.-Oct.. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, and non-gravitational effects of the sublimating molecule = CO (or N2) using Yabushita's theory (MN 283, 347) were taken into account. The mean residual is +/- 0.64 arc second. The separation of the component C was about 4" from the principal component on Nov. 2 UT. See the previous orbits in NK 2196, NK 2248, NK 2374, NK 2474, NK 2595 (= HICQ 2014), NK 2760 for the principal and NK 2788 for component B. Epoch = 2013 Dec. 14.0 TT T = 2013 Dec. 25.27220 +/- 0.00387 (m.e.) TT Peri. = 85.28878 +/- 0.00091 Node = 163.94708 +/- 0.00007 (2000.0) Inc. = 122.79855 +/- 0.00008 q = 3.4434708 +/- 0.0000312 AU e = 1.0006218 +/- 0.0000372 1/a = -0.0001806 +/- 0.0000108 1/AU origin = +0.000001 (Q= 7) future = -0.000050 Y1 = +2.157 +/- 0.820 Y2 = +4.53419 +/- 0.63191 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2014/ 141007 J13 0.7- 0.1+ 141011 J13 0.6- 0.0 141004 J13 0.8- 0.3+ 141008 J13 0.7- 0.1+ 141102 209 0.1- 0.3+ 141004 J13 0.7- 0.3+ 141008 J13 0.8- 0.0 141102 209 0.2+ 1.9- 141006 J13 0.7- 0.2+ 141009 J13 0.7- 0.1+ 141206 B96 (3.3+ 2.8+) 141006 J13 0.7- 0.2+ 141009 J13 0.6- 0.0 141206 B96 2.8+ 0.3+ 141007 J13 0.7- 0.3+ 141011 J13 0.6- 0.1+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2015 Jan. 26