Nakano Note (Nakano wa Kangaeru noda) NK 3093 P/2015 HG16 (PANSTARRS)
The following improved orbital elements, by S. Nakano, are from 33 observations 2015 Mar. 24 to 2016 Apr. 6. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.18 arc second. Epoch = 2014 July 2.0 TT T = 2014 June 28.97872 +/- 0.00527 (m.e.) TT Peri. = 48.15401 +/- 0.00126 Node = 59.52588 +/- 0.00009 (2000.0) Inc. = 18.86851 +/- 0.00002 q = 3.1317956 +/- 0.0000267 AU e = 0.3462277 +/- 0.0000084 a = 4.7903462 +/- 0.0000154 AU n' = 0.09400560 +/- 0.00000045 P = 10.485 +/- 0.0000506 years The predicted orbit for the 2024 return is as follows: T = 2024 Oct. 16.16311 TT Epoch = 2024 Oct. 17.0 TT Peri. = 46.74598 e = 0.3465030 Node = 57.05366 (2000.0) a = 4.7793529 AU Inc. = 19.00604 n'= 0.09433013 q = 3.1232927 AU P = 10.448 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2015/ 150421 F51 0.4+ 0.0 160403 F51 0.6- 0.2+ 150324 F51 0.1- 0.0 150421 F51 0.2- 0.0 160403 F51 0.0 0.1- 150324 F51 0.1- 0.0 150421 F51 0.1- 0.0 160403 F51 0.1- 0.1- 150324 F51 0.2- 0.1+ 150421 F51 0.1- 0.5- 160403 F51 0.3+ 0.3- 150324 F51 0.2+ 0.0 150424 F51 0.0 0.1+ 160404 F51 0.1- 0.0 150409 F51 0.2+ 0.2- 150424 F51 0.0 0.1+ 160404 F51 0.1- 0.1- 150409 F51 0.1+ 0.1+ 150424 F51 0.1+ 0.2+ 160404 F51 0.1- 0.1+ 150409 F51 0.3- 0.0 150424 F51 0.1- 0.2+ 160404 F51 0.1- 0.2+ 150420 F51 0.1+ 0.1- 2016/ 160406 568 0.0 0.2- 150420 F51 0.1+ 0.0 160211 F51 0.3+ 0.1+ 160406 568 0.1+ 0.2- 150420 F51 0.1- 0.1- 160211 F51 0.2- 0.0 160406 568 0.1+ 0.2- 150420 F51 0.0 0.1+ 160211 F51 0.3+ 0.3+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2016 Apr. 12