Nakano Note (Nakano wa Kangaeru noda) NK 3546 C/2017 S7 (Lemmon)

The following improved orbital elements, by S. Nakano, are from 123 observations 2016 Dec. 18 to 2018 Jan 20. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.45 arc second. See the previous orbit in NK 3463 (= HICQ 2018). Epoch = 2017 June 16.0 TT T = 2017 May 28.08558 +/- 0.01841 (m.e.) TT Peri. = 187.75997 +/- 0.00121 Node = 262.78684 +/- 0.00004 (2000.0) Inc. = 124.21957 +/- 0.00008 q = 7.6145436 +/- 0.0000266 AU e = 1.0023876 +/- 0.0000198 1/a = -0.0003136 +/- 0.0000026 1/AU origin = +0.000085 (Q= 8) future = +0.000086 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2016/ 171002 G96 0.2+ 0.4+ 171016 926 0.1+ 0.5+ 161218 G96 0.6+ 0.9+ 171002 G96 0.2+ 0.5+ 171016 U69 0.4- 0.2+ 161218 G96 0.0 0.5+ 171002 691 0.5- 0.7+ 171016 U69 0.2- 0.6+ 161218 G96 0.2+ 1.7- 171002 G96 0.3- 0.5+ 171114 695 0.3+ 0.1- 161218 G96 0.9+ 1.1- 171002 691 0.3- 0.5+ 171114 695 0.1+ 0.3- 161227 G96 0.4+ 0.4+ 171002 691 0.1- 0.2+ 171115 703 (2.5+ 1.3+) 161227 G96 0.2+ 0.2- 171003 G40 0.3- 0.2+ 171115 703 0.9+ 1.5+ 161227 G96 0.2+ 0.1+ 171003 G40 0.4- 0.4+ 171115 703 (0.1+ 2.4+) 161227 G96 0.7- 0.2- 171004 850 0.5- 0.6+ 171117 G96 0.3+ 0.1+ 161230 G96 0.7- 0.4+ 171004 850 0.7- 0.4+ 171117 G96 0.1- 0.4+ 161230 G96 0.1- 0.2+ 171004 850 0.7- 0.0 171117 G96 0.0 0.1+ 161230 G96 0.8- 0.1- 171006 926 0.5- 0.5+ 171117 G96 0.1- 0.1+ 161230 G96 0.2+ 0.3+ 171006 926 0.0 0.6+ 171117 F51 0.1+ 0.1- 2017/ 171006 926 0.1- 0.5+ 171117 F51 0.2- 0.7- 170926 G96 0.1- 0.0 171007 H01 0.3+ 0.5- 171117 F51 0.1+ 0.3- 170926 G96 0.0 0.1- 171007 H01 0.3+ 0.3- 171117 F51 0.0 0.3- 170926 G96 0.0 0.1- 171007 H01 0.2+ 0.1- 171118 695 0.1+ 0.3- 170926 G96 0.1+ 0.3- 171007 H01 0.2+ 0.2- 171118 695 0.1+ 0.2- 170927 Z17 0.3+ 0.2- 171007 926 0.8- 0.0 171209 F51 0.0 0.1- 170927 Z17 0.4- 0.1+ 171007 926 0.2- 0.0 171209 F51 0.1+ 0.1- 170927 Z17 0.2+ 0.4- 171007 926 0.1- 0.3+ 171209 F51 0.1+ 0.1- 170927 Z17 0.3+ 0.0 171014 215 (0.6+ 4.0+) 171209 F51 0.0 0.0 170927 Z17 0.6+ 0.5- 171014 215 (1.1+ 2.6+) 171220 G96 0.1- 1.0+ 170929 K88 0.5- 0.3+ 171014 215 1.0+ 1.4+ 171220 G96 0.1- 1.1+ 170929 K88 1.0- 0.2+ 171015 461 0.3+ 0.1- 171220 G96 0.0 0.9+ 170929 U69 0.5+ 0.5- 171015 461 0.3- 0.1- 171220 G96 0.1+ 0.6+ 170929 U69 0.5+ 0.8- 171015 461 0.1- 0.0 171223 F51 0.0 0.0 170929 U69 0.7+ 1.0- 171015 G96 0.3- 0.3+ 171223 F51 0.0 0.1+ 170930 K88 0.4- 0.8+ 171015 G96 0.1+ 0.5+ 171223 F51 0.0 0.2- 170930 K88 0.2- 0.4+ 171015 G96 0.3- 0.7+ 171223 F51 0.0 0.1- 170930 I52 0.2- 0.3+ 171015 G96 0.2+ 0.4+ 2018/ 170930 I52 0.2+ 0.2- 171016 K63 0.5- 0.8+ 180106 F51 0.2+ 0.0 170930 I52 0.5- 0.2- 171016 K63 0.3- 0.4+ 180106 F51 0.0 0.1+ 171001 A71 0.2+ 0.1+ 171016 K63 0.3- 0.4+ 180106 F51 0.1- 0.0 171001 A71 0.0 0.3+ 171016 461 0.3+ 0.2- 180113 F51 0.1- 0.1+ 171001 118 0.4- 0.2+ 171016 461 0.2+ 0.1+ 180113 F51 0.2- 0.1+ 171001 118 0.8- 0.3+ 171016 461 0.0 0.1+ 180116 G96 0.1+ 1.0+ 171001 G96 0.5- 0.5+ 171016 106 0.0 0.2+ 180116 G96 0.2+ 0.5+ 171001 G96 0.0 1.7+ 171016 106 0.6+ 0.0 180116 G96 0.7+ 0.7+ 171001 G96 0.2+ 0.4+ 171016 118 0.6- 0.2- 180116 G96 0.1+ 1.0+ 171001 G96 0.2+ 0.1- 171016 106 0.2- 0.7+ 180120 568 0.0 0.0 171002 G40 0.4- 0.8+ 171016 118 0.5- 0.2- 180120 568 0.0 0.1+ 171002 G40 0.5- 0.1+ 171016 118 0.5- 0.0 171002 G96 0.5- 0.3+ 171016 926 0.8+ 1.2+ ( ) -------- Rejected Obs.

Associate of the CBAT Syuichi Nakano 2018 Feb. 8

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