Nakano Note (Nakano wa Kangaeru noda) NK 5409 C/2012 KA51 ()
The following improved orbital elements, by S. Nakano, are from 22 observations 2012 Mar. 11 to Dec. 28. 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. The comet has passed 6.72 AU from Uranus on 2005 July 18 and 3.82 AU from Jupiter on 2010 Mar. 24 UT. See an orbit in CBET 5549 (same orbit). Epoch = 2011 Nov. 15.0 TT T = 2011 Nov. 1.55565 +/- 0.00414 (m.e.) TT Peri. = 94.16622 +/- 0.00060 Node = 344.84653 +/- 0.00011 (2000.0) Inc. = 70.70697 +/- 0.00007 q = 4.8952696 +/- 0.0000191 AU e = 0.9939802 +/- 0.0000236 1/a = +0.0012297 +/- 0.0000048 1/AU origin = +0.001725 (Q= 7) future = +0.002036 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2012/ 120522 I41 0.1- 0.0 120528 I41 0.1- 0.3+ 120311 F51 0.3+ 0.5+ 120522 I41 0.3- 0.2- 120528 I41 0.2- 0.0 120311 F51 0.3- 0.1+ 120523 I41 0.3+ 0.3- 120528 I41 0.4- 0.1+ 120313 F51 0.1+ 0.2+ 120523 I41 0.1+ 0.0 121217 H06 0.6+ 0.1+ 120313 F51 0.0 0.1- 120523 I41 0.3+ 0.2+ 121217 H06 0.1+ 0.1+ 120401 F51 0.1+ 0.0 120524 I41 0.0 0.1+ 121228 F51 0.4- 0.3- 120401 F51 0.5+ 0.6- 120524 I41 0.2+ 0.1+ 121228 F51 0.2- 0.0 120522 I41 0.0 0.3- 120524 I41 0.0 0.1+ ( ) -------- Rejected Obs.
Associate of the CBAT Late edition Syuichi Nakano 2025 Apr. 23