Nakano Note (Nakano wa Kangaeru noda) NK 2826 C/2014 A5 (PANSTARRS)

The following improved orbital elements, by S. Nakano, are from 29 observations 2014 Jan. 4 to 2015 Feb. 20. 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. 2015 Observations show the residuals of -780" and +880" from an orbit in HICQ 2014. The comet has passed 0.78 AU from Jupiter on 2014 May 26 UT. Another night observations are required. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Epoch = 2014 Aug. 11.0 TT T = 2014 Aug. 13.61998 +/- 0.00547 (m.e.) TT Peri. = 182.59366 +/- 0.00064 Node = 310.10270 +/- 0.00002 (2000.0) Inc. = 31.98844 +/- 0.00002 q = 4.8003248 +/- 0.0000089 AU e = 0.9612942 +/- 0.0000127 1/a = +0.0080632 +/- 0.0000026 1/AU a = 124.0 AU P = 1381 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2014/ 140126 568 0.1- 0.1- 140220 F51 0.0 0.3+ 140104 F51 0.2+ 0.0 140126 568 0.0 0.1- 140220 F51 0.0 0.1- 140104 F51 0.2+ 0.0 140127 568 0.0 0.1- 140322 G96 0.7+ 0.2+ 140104 F51 0.0 0.1+ 140127 568 0.0 0.1- 140322 G96 0.0 0.1+ 140104 F51 0.2+ 0.0 140127 568 0.0 0.1- 140322 G96 0.2- 0.3+ 140106 H06 1.5- 0.1- 140128 204 0.1+ 0.6+ 2015/ 140106 H06 1.2- 0.1- 140128 204 0.4- 0.7+ 150220 F51 0.2- 0.1+ 140106 H06 0.8- 0.3- 140128 204 0.5- 0.2+ 150220 F51 0.0 0.0 140107 H06 0.6- 1.2+ 140202 C10 1.1+ 0.2- 150220 F51 0.2+ 0.1- 140107 H06 0.7- 0.7+ 140202 C10 0.3- 0.5- 140126 568 0.1- 0.1- 140220 F51 0.1+ 0.0 ( ) -------- Rejected Obs.

Associate of the CBAT Syuichi Nakano 2015 Mar. 16

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