Nakano Note (Nakano wa Kangaeru noda) NK 2907 C/2014 R3 (PANSTARRS)

The following improved orbital elements, by S. Nakano, are from 52 observations 2014 Sept. 6 to 2015 Apr. 23. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.37 arc second. The comet has passed 3.31 AU from Uranus on 2005 Sept. 29 UT. Epoch = 2016 July 31.0 TT T = 2016 Aug. 7.74483 +/- 0.10165 (m.e.) TT Peri. = 113.38536 +/- 0.01020 Node = 334.11131 +/- 0.00034 (2000.0) Inc. = 90.83713 +/- 0.00014 q = 7.2762185 +/- 0.0005262 AU e = 0.9996749 +/- 0.0001321 1/a = +0.0000447 +/- 0.0000182 1/AU origin = +0.000123 (Q= 6) future = +0.000175 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2014/ 140910 J95 0.6+ 0.2- 140916 215 0.2+ 0.0 140906 F51 0.1- 0.1+ 140912 U69 0.2+ 0.1- 140917 U69 1.0+ 0.7- 140906 F51 0.0 0.3+ 140912 U69 0.1- 0.2+ 140917 U69 1.0+ 0.4- 140906 F51 0.1- 0.1+ 140913 I93 0.4+ 0.2- 141027 461 0.5+ 0.6+ 140906 F51 0.0 0.0 140913 958 0.1- 0.8- 141027 461 0.3+ 0.6+ 140907 H21 0.5+ 0.2+ 140913 I93 0.1- 0.2- 141028 461 0.1+ 0.1- 140907 H21 0.1+ 0.4+ 140913 958 0.0 0.2- 141028 461 0.0 0.1- 140907 H21 0.1+ 0.3+ 140913 958 0.2- 0.7- 141028 461 0.0 0.0 140907 J95 0.1- 0.5- 140913 I93 0.0 0.2+ 141028 461 0.3- 0.2- 140907 J95 0.2+ 1.0- 140914 H21 0.3+ 0.0 2015/ 140908 J95 0.5- 0.2- 140914 H21 0.0 0.0 150321 215 0.5+ 0.5- 140908 H21 0.9+ 0.2+ 140914 H21 0.1+ 0.1- 150321 215 0.2+ 0.3- 140908 H21 0.4+ 0.1+ 140916 568 0.2- 0.0 150321 215 0.1+ 0.1- 140908 H21 0.9+ 0.9- 140916 568 0.1- 0.0 150410 461 0.2- 0.4+ 140908 958 0.7+ 0.6- 140916 568 0.1- 0.0 150410 461 0.1- 0.4+ 140908 958 0.4+ 0.4- 140916 568 0.2- 0.0 150410 461 0.1- 0.4+ 140908 958 0.3+ 0.6- 140916 215 0.0 0.3+ 150423 C10 0.2- 0.1- 140910 J95 0.2+ 0.1+ 140916 215 0.0 0.2+ 150423 C10 0.1- 0.3- ( ) -------- Rejected Obs.

Associate of the CBAT Syuichi Nakano 2015 May 17

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