Nakano Note (Nakano wa Kangaeru noda) NK 2674 C/2012 U1 (PANSTARRS)

The following improved orbital elements, by S. Nakano, are from 118 observations 2012 Oct. 17 to 2014 Mar. 26. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.39 arc second. The comet has passed 3.83 AU from Jupiter on 2012 Apr. 7 UT. See the previous orbits in HICQ 2013 and NK 2548. Epoch = 2014 July 2.0 TT T = 2014 July 4.88853 +/- 0.00298 (m.e.) TT Peri. = 70.06944 +/- 0.00044 Node = 26.98202 +/- 0.00001 (2000.0) Inc. = 56.33900 +/- 0.00003 q = 5.2637822 +/- 0.0000207 AU e = 0.9995814 +/- 0.0000088 1/a = +0.0000795 +/- 0.0000017 1/AU origin = +0.001262 (Q= 8) future = +0.000826 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2012/ 130105 461 0.3+ 0.4+ 131128 H45 0.0 0.0 121017 G96 0.1- 0.3- 130105 461 0.0 0.2- 131128 H45 0.1+ 0.1+ 121017 G96 0.5+ 0.3- 130107 461 0.3- 0.3- 131128 H45 0.2+ 0.1+ 121017 G96 0.3+ 0.4- 130107 461 0.4- 0.2+ 131202 C23 0.8+ 1.0+ 121017 G96 0.0 0.5- 130712 461 0.3- 0.2- 131202 C23 0.4+ 0.0 121018 F51 0.1+ 0.0 130712 461 0.3+ 0.0 131208 C10 0.2- 0.2- 121018 F51 0.1- 0.0 130712 461 0.2+ 0.2+ 131208 C10 0.1- 0.2- 121018 F51 0.0 0.0 130720 461 0.2- 0.1+ 131226 C23 0.4+ 0.1- 121019 568 0.1- 0.0 130720 461 0.1- 0.0 131226 C23 0.5- 0.6+ 121019 568 0.1- 0.1+ 130901 H06 0.9+ 0.1- 2014/ 121019 568 0.1+ 0.1+ 130901 H06 0.8+ 0.2- 140101 H45 0.5+ 0.2+ 121020 H06 1.0- 0.4- 130901 H06 0.6+ 0.2- 140101 H45 0.6+ 0.2- 121020 H06 0.4- 0.3- 130906 215 1.6- 0.1+ 140101 H45 0.4+ 0.1- 121020 H06 0.7+ 0.4- 130906 215 1.5- 0.3- 140101 H45 0.5+ 0.1- 121022 291 0.5- 0.4- 130906 215 1.4- 0.5- 140101 H45 0.7+ 0.0 121022 291 0.1- 0.1+ 130907 C47 0.0 0.1- 140102 C23 0.0 0.3+ 121022 F65 0.0 0.2+ 130907 C47 0.4+ 0.0 140102 C23 0.1- 0.0 121022 F65 0.2- 0.1- 130907 C47 0.7+ 0.1- 140102 C23 0.2- 0.1- 121022 C32 0.1+ 0.2+ 131023 970 0.2+ 0.2- 140113 C23 0.1+ 1.3- 121022 C32 0.1- 0.1+ 131023 970 0.8+ 0.7- 140113 C23 1.0+ 0.9- 121022 C32 0.5+ 0.4+ 131030 926 0.4- 0.0 140113 C23 0.1+ 0.9- 121022 C32 0.0 0.0 131030 926 0.1- 0.6+ 140120 H45 0.4- 0.5- 121022 C32 0.4+ 0.1- 131030 926 0.1- 0.3+ 140120 H45 0.4- 0.3- 121025 G96 0.3- 0.5- 131110 C23 0.7+ 0.1+ 140120 H45 0.2- 0.2- 121025 G96 0.0 0.5- 131110 C23 0.2+ 0.3+ 140204 C23 0.2+ 1.0+ 121025 G96 0.1- 0.3- 131113 130 0.7- 0.6- 140204 C23 0.1- 0.4- 121025 G96 0.1- 0.0 131113 130 0.5+ 0.6- 140222 C23 0.1- 0.7- 121102 G96 0.2- 0.6- 131113 130 0.2+ 0.0 140222 C23 0.1+ 0.5- 121102 G96 0.3- 0.5- 131118 900 0.5- 0.4- 140305 C23 0.4- 0.7- 121102 G96 0.4+ 0.1- 131118 900 0.4- 1.1- 140305 C23 (2.2- 0.2-) 121102 G96 0.1- 0.1- 131124 F51 0.1+ 0.0 140308 215 0.1- 0.7- 121103 F51 0.1+ 0.0 131124 F51 0.2- 0.3+ 140308 215 0.0 0.4- 121103 F51 0.0 0.1+ 131124 F51 0.0 0.1+ 140308 215 0.3+ 0.5+ 121103 F51 0.0 0.1+ 131124 F51 0.2- 0.1+ 140313 B96 1.0- 0.4+ 121103 F51 0.0 0.0 131125 C23 0.5- 0.3+ 140313 B96 0.9- 0.3+ 121104 C10 0.2- 0.2- 131125 C23 0.5+ 0.2- 140313 B96 1.5- 1.9+ 121104 C10 0.2+ 0.1- 131128 H45 0.5+ 0.0 140324 C23 1.3+ 0.1+ 121113 H06 0.3- 1.2+ 131128 H45 0.4+ 0.0 140324 C23 0.5- 0.1+ 121113 H06 0.1- 0.6+ 131128 H45 0.2+ 0.1+ 140326 461 0.2+ 0.2- 121113 H06 0.2- 0.5- 131128 H45 0.0 0.1+ 140326 461 0.6+ 0.3+ 2013/ 131128 H45 0.2+ 0.1+ ( ) -------- Rejected Obs.

Associate of the CBAT Syuichi Nakano 2014 Apr. 11

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