Nakano Note (Nakano wa Kangaeru noda) NK 4407 C/2015 A2 (PANSTARRS)

The following improved orbital elements, by S. Nakano, are from 21 observations 2014 Dec. 2 to 2015 Jan. 21. The mean residual is +/- 0.21 arc second. See an orbit in HICQ 2015. T = 2015 Sept. 6.49434 +/- 0.25467 (m.e.) TT Peri. = 213.21175 +/- 0.03283 Node = 258.45995 +/- 0.00021 (2000.0) Inc. = 108.65792 +/- 0.00380 q = 5.2380853 +/- 0.0009131 AU e = 1.0 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2014/ 150114 F51 0.1+ 0.3- 150116 568 0.1- 0.1- 141202 F51 0.2- 0.2- 150114 F51 0.1- 0.1- 150120 I41 0.5+ 0.1+ 141202 F51 0.0 0.1- 150115 U69 (2.5+ 0.5+) 150120 I41 0.2- 0.1- 141202 F51 0.1+ 0.5+ 150115 U69 (2.9+ 0.6-) 150121 I41 0.5- 0.1+ 2015/ 150116 H01 0.0 0.1+ 150121 I41 0.1- 0.5+ 150112 F51 0.2+ 0.0 150116 H01 0.0 0.1+ 150214 H06(30.7+ 20.7+) 150112 F51 0.2+ 0.5- 150116 H01 0.1- 0.1+ 150214 H06(30.9+ 20.4+) 150112 F51 0.3+ 0.1+ 150116 H01 0.1- 0.2+ 150214 H06(31.2+ 20.2+) 150114 F51 0.0 0.2- 150116 568 0.0 0.0 150114 F51 0.1+ 0.2- 150116 568 0.1+ 0.1+ ( ) -------- Rejected Obs.

Associate of the CBAT Syuichi Nakano 2021 Mar. 19

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