Nakano Note (Nakano wa Kangaeru noda) NK 3578 C/2018 F1 (Grauer)

The following improved orbital elements, by S. Nakano, are from 71 observations 2017 Dec. 22 to 2018 Mar. 23. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.44 arc second. Epoch = 2018 Dec. 28.0 TT T = 2018 Dec. 14.07439 +/- 0.00232 (m.e.) TT Peri. = 71.62226 +/- 0.00221 Node = 177.29047 +/- 0.00015 (2000.0) Inc. = 46.07189 +/- 0.00052 q = 2.9930961 +/- 0.0001041 AU e = 0.9907816 +/- 0.0000634 1/a = +0.0030799 +/- 0.0000212 1/AU origin = +0.004589 (Q= 6) future = +0.004598 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2017/ 180317 F51 0.2+ 0.1+ 180319 W96 0.2+ 0.1+ 171222 F51 0.1- 0.1+ 180317 F51 0.2+ 0.0 180319 I52 0.7+ 0.7- 171222 F51 0.0 0.1- 180317 I52 0.1+ 0.1+ 180319 I52 0.1+ 0.1- 171222 F51 0.0 0.2- 180317 I52 0.1+ 0.4- 180319 I52 0.0 0.3- 171222 F51 0.1+ 0.1+ 180317 I52 0.7- 0.1- 180319 I52 0.1- 0.1+ 2018/ 180317 I52 0.5- 0.0 180319 F51 0.1+ 0.1+ 180117 F51 0.1+ 0.1- 180317 B49 1.2- 0.5- 180319 F51 0.2+ 0.1+ 180117 F51 0.2- 0.3+ 180317 B49 1.2- 0.6- 180319 F51 0.2+ 0.1+ 180223 G96 0.2- 0.1+ 180317 B49 1.2- 0.8- 180319 F51 0.2+ 0.1+ 180223 G96 0.3- 0.1+ 180318 850 1.0- 1.0- 180320 703 0.8- 0.0 180223 G96 0.1- 0.3- 180318 850 0.2- 0.2- 180320 703 1.6- 0.1+ 180223 G96 0.3- 0.1+ 180318 850 0.1- 0.7+ 180320 703 1.0- 0.5- 180310 F51 0.2+ 0.0 180318 850 0.6+ 0.2- 180320 703 1.6- 0.6- 180310 F51 0.1+ 0.1- 180318 I52 0.5- 0.1+ 180322 703 0.6- 1.1- 180310 F51 0.2+ 0.0 180318 I52 0.6- 0.7- 180322 703 0.2+ 0.7- 180317 G96 0.2- 0.1- 180318 I52 0.7- 0.2+ 180322 703 0.3+ 0.2- 180317 G96 0.2- 0.1- 180318 I52 0.4- 0.4+ 180322 703 0.3- 0.5+ 180317 G96 0.5- 0.2- 180318 G96 0.3- 0.0 180322 Q11 0.5- 0.1+ 180317 G96 0.4- 0.6+ 180318 G96 0.3- 0.1+ 180322 Q11 0.6- 0.1+ 180317 F51 0.2+ 0.0 180318 G96 0.4- 0.1+ 180322 Q11 0.3- 0.1+ 180317 F51 0.2+ 0.0 180318 G96 0.3- 0.3- 180323 Q11 0.5- 0.0 180317 I52 0.0 0.0 180319 G40 0.3- 0.4- 180323 Q11 0.6- 0.1+ 180317 I52 0.2- 0.1+ 180319 G40 0.5- 0.0 180323 Q11 0.3- 0.0 180317 I52 0.3- 0.0 180319 W96 0.2- 0.2+ 180317 I52 0.0 0.1+ 180319 W96 0.1+ 0.1+ ( ) -------- Rejected Obs.

Associate of the CBAT Syuichi Nakano 2018 Apr. 7

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