Nakano Note (Nakano wa Kangaeru noda) NK 3695 C/2018 B1 (Lemmon)

The following improved orbital elements, by S. Nakano, are from 111 observations 2017 Jan. 16 to 2018 Sept. 18. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.51 arc second. The comet has passed 3.40 AU from Jupiter on 2015 Sept. 1 and will pass 2.46 AU from Saturn on 2022 July 19 UT. See the previous orbit in NK 3550. Epoch = 2018 Mar. 23.0 TT T = 2018 Mar. 30.57903 +/- 0.00882 (m.e.) TT Peri. = 68.35526 +/- 0.00103 Node = 133.15841 +/- 0.00007 (2000.0) Inc. = 162.42297 +/- 0.00002 q = 5.1168983 +/- 0.0000418 AU e = 1.0029874 +/- 0.0000281 1/a = -0.0005838 +/- 0.0000055 1/AU origin = +0.000194 (Q= 8) future = +0.000180 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2017/ 180128 I52 0.9- 0.2- 180207 711 0.7- 0.2- 170116 F51 0.1+ 0.1- 180130 H36 0.2- 0.7+ 180209 G96 0.3- 0.1- 170116 F51 0.0 0.1+ 180130 H36 0.7+ 0.6+ 180209 G96 0.1- 0.1+ 170116 F51 0.1- 0.3+ 180130 926 0.1- 0.3- 180209 G96 0.6- 0.3- 170128 F51 0.2+ 0.2- 180130 926 0.3- 0.4- 180209 G96 0.1- 0.2- 170128 F51 0.0 0.2- 180130 926 0.4+ 0.0 180213 Q11 0.6- 0.7- 170128 F51 0.1- 0.1+ 180131 J95 0.4- 0.1+ 180213 Q11 0.9- 0.2- 2018/ 180131 J95 0.3- 0.0 180213 215 0.7+ 0.2+ 180125 G96 0.6+ 0.0 180131 J95 0.4+ 0.1- 180213 215 0.5+ 0.2+ 180125 G96 0.5+ 0.3- 180201 J95 0.1+ 0.3- 180213 215 0.9+ 0.9+ 180125 G96 0.3+ 0.2+ 180201 J95 0.5+ 0.2- 180303 K77 0.6- 0.7- 180125 G96 0.6+ 0.2+ 180203 U69 0.3- 0.1- 180303 K77 0.5+ 0.0 180125 H01 0.3- 0.4- 180203 U69 0.1- 0.1+ 180817 U69 0.1- 0.5- 180125 H01 0.4- 0.5- 180203 P93 0.3+ 0.2+ 180817 U69 0.2- 0.4- 180125 H01 0.4- 0.4- 180203 P93 0.9+ 0.3+ 180905 703 0.3+ 0.4- 180125 H01 0.4- 0.4- 180203 P93 0.9+ 0.4+ 180905 703 1.0- 0.7+ 180126 H01 0.2- 0.0 180204 703 1.3+ 0.4+ 180905 703 0.6- 0.8+ 180126 H01 0.3- 0.0 180204 703 0.8+ 1.1+ 180905 703 0.2+ 0.8+ 180126 H01 0.2- 0.0 180204 703 0.6+ 0.9+ 180905 215 0.3+ 0.3- 180126 H01 0.0 0.0 180204 703 1.0+ 0.7+ 180905 215 0.1+ 0.3+ 180126 L01 0.0 0.2- 180204 K61 0.6- 0.1- 180905 215 0.0 0.9+ 180126 L01 0.5+ 0.1- 180204 K61 0.7- 0.4- 180907 T05 0.4- 0.5- 180126 L01 0.3- 0.3- 180205 H36 0.9+ 0.6+ 180907 T05 0.3- 0.0 180127 I52 0.6- 0.8- 180205 H36 0.7+ 1.0- 180907 T05 0.1- 0.5- 180127 I52 0.1+ 0.4+ 180205 I52 0.5+ 0.4- 180907 T05 0.1+ 0.5+ 180127 I52 0.0 0.6- 180205 I52 0.3- 0.2- 180908 703 0.1- 0.2- 180127 I52 0.3+ 0.2+ 180205 I52 0.3+ 0.4+ 180908 703 0.0 0.0 180127 H36 0.5- 0.4+ 180205 I52 0.2- 0.0 180908 703 0.5- 0.9- 180127 H36 1.7- 1.2+ 180206 H36 1.1+ 0.5+ 180908 703 0.0 0.5+ 180127 H36 1.5- 0.1- 180206 H36 0.8- 0.1+ 180911 703 0.9+ 0.2- 180127 H01 0.1- 0.3- 180206 711 0.4- 0.3- 180911 703 0.2+ 1.0+ 180127 H01 0.4- 0.5- 180206 711 0.1- 0.3- 180911 703 1.0+ 0.1+ 180127 H01 0.2- 0.4- 180206 711 0.4- 0.1- 180911 703 0.5+ 0.7+ 180127 H01 0.7- 0.3- 180207 I52 0.4+ 0.9- 180918 G96 0.2+ 0.5- 180128 H36 0.1+ 0.8+ 180207 I52 0.5- 0.1- 180918 G96 0.1+ 0.1- 180128 H36 0.6+ 0.4- 180207 711 0.6- 0.3- 180918 G96 0.4- 0.4- 180128 H36 1.7+ 0.9+ 180207 711 0.8- 0.3- 180918 G96 0.4- 0.2- 180128 I52 0.5+ 0.1+ 180207 I52 0.2- 0.4- ( ) -------- Rejected Obs.

Associate of the CBAT Syuichi Nakano 2018 Oct. 11

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