Nakano Note (Nakano wa Kangaeru noda) NK 3502 C/2015 X5 (PANSTARRS)

The following improved orbital elements, by T. Kobayashi, are from 117 observations 2015 Dec. 6 to 2017 Oct. 15. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.46 arc second. See the previous orbits in NK 3167, HICQ 2017 and NK 3349. Epoch = 2018 Jan. 2.0 TT T = 2017 Dec. 31.02234 +/- 0.00493 (m.e.) TT Peri. = 27.75172 +/- 0.00045 Node = 122.31455 +/- 0.00002 (2000.0) Inc. = 124.29082 +/- 0.00005 q = 6.8017787 +/- 0.0000266 AU e = 1.0033525 +/- 0.0000152 1/a = -0.0004929 +/- 0.0000022 1/AU origin = +0.000044 (Q= 8) future = +0.000022 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2015/ 160305 F51 0.3- 0.4+ 170109 G96 0.3+ 0.8- 151206 F51 0.2+ 0.1+ 160305 F51 0.3- 0.4+ 170119 461 0.1+ 0.8+ 151206 F51 0.0 0.3+ 160305 F51 0.2- 0.5+ 170119 130 0.5- 1.3- 151206 F51 0.0 0.4+ 160305 F51 0.3- 0.4+ 170119 461 0.4+ 0.6+ 151206 F51 0.2+ 0.2+ 160404 F51 0.4- 0.1+ 170119 130 0.2+ 0.6+ 151207 W85 0.1- 0.1+ 160404 F51 0.4- 0.1+ 170119 461 0.5+ 0.2+ 151207 W85 0.1- 0.0 160404 F51 0.5- 0.0 170120 461 0.1- 0.1+ 151207 W85 0.1- 0.2- 160404 F51 0.5- 0.1+ 170120 461 0.3- 0.6+ 151207 W85 0.2- 0.1+ 161124 461 0.5- 0.2+ 170120 461 0.3- 0.5+ 151208 H01 0.2+ 0.1+ 161124 461 0.4- 0.1+ 170120 461 0.6- 0.3+ 151208 H01 0.0 0.4+ 161124 461 0.0 0.0 170124 461 0.0 0.1+ 151208 H01 0.1+ 0.2+ 161130 G45 0.4- 1.0+ 170124 461 0.3- 0.1- 151208 H01 0.2+ 0.1+ 161130 G45 0.4- 0.7+ 170124 461 0.1+ 0.6+ 151208 H06 1.3+ 0.1- 161130 G45 0.6- 0.0 170124 461 0.1- 0.8+ 151208 H06 0.2+ 0.1- 161130 G45 0.6+ 1.0- 170128 F51 0.5- 0.2+ 151208 568 0.0 0.5+ 161130 G45 0.3- 1.0- 170128 F51 0.4- 0.2+ 151208 568 0.1- 0.5+ 161205 G45 0.7- 0.0 170128 F51 0.4- 0.2+ 151208 568 0.1- 0.4+ 161205 G45 0.0 0.1- 170128 F51 0.3- 0.1+ 151213 926 0.3+ 0.6- 161205 G45 0.8- 0.2+ 170128 215 0.1- 0.5- 151213 926 0.6+ 0.3- 161205 G45 0.7- 0.8- 170128 215 0.0 0.4- 151213 926 0.2- 0.3- 161209 215 0.5+ 0.4+ 170128 215 0.1+ 0.1- 151215 926 0.3+ 0.0 161209 215 0.3+ 0.2+ 170131 G96 0.6+ 0.7- 151215 926 0.1- 0.6- 161209 215 0.1+ 0.1+ 170131 G96 0.3+ 0.2+ 151218 Q62 0.6+ 0.5- 161209 H06 0.6- 0.3+ 170131 G96 0.1- 0.4+ 151218 Q62 0.3+ 0.6- 161209 H06 0.8- 0.5+ 170131 G96 0.3- 0.3+ 151218 Q62 0.0 0.8- 161209 H06 1.0- 0.2+ 170201 703 0.0 0.4+ 2016/ 161220 461 0.0 1.1- 170201 703 1.0+ 0.2- 160111 474 0.2+ 0.4- 161220 461 0.0 0.4- 170201 703 1.9+ 0.2- 160111 474 0.1- 0.5- 161221 J43 0.2+ 0.4- 170225 G96 0.2+ 0.1- 160111 474 0.2- 0.1- 161221 J43 0.3+ 0.3+ 170225 G96 0.2+ 0.4+ 160112 F51 0.3- 0.2+ 161221 J43 0.1+ 0.4+ 170225 G96 0.8+ 0.6- 160112 F51 0.1- 0.2+ 161221 J43 0.0 0.0 170225 G96 1.2+ 1.8- 160202 474 0.3+ 0.1- 2017/ 170327 A71 0.2+ 0.2+ 160202 474 0.3- 0.3+ 170107 G96 0.6+ 0.5- 170327 A71 0.3+ 0.2- 160202 474 0.1+ 0.1+ 170107 G96 0.6+ 1.1- 170327 A71 0.4+ 0.2- 160202 474 0.5+ 0.4- 170107 G96 0.0 0.4- 170401 461 0.9- 0.1+ 160304 F51 0.1- 0.3+ 170107 G96 0.4- 0.5+ 170401 461 0.4- 0.0 160304 F51 0.3- 0.2+ 170109 G96 0.5+ 0.4- 171015 461 0.0 0.7+ 160304 F51 0.1- 0.2+ 170109 G96 0.2+ 0.7- 171015 461 0.1- 0.7+ 160304 F51 0.3- 0.3+ 170109 G96 0.4+ 0.6- 171015 461 0.2- 0.7+ ( ) -------- Rejected Obs.

Associate of the CBAT Syuichi Nakano 2017 Nov. 26

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