Nakano Note (Nakano wa Kangaeru noda) NK 3463 C/2017 S7 (Lemmon)

The following improved orbital elements, S. Nakano, are from 63 observations 2016 Dec. 18 to 2017 Oct. 7. 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. Epoch = 2017 June 16.0 TT T = 2017 May 27.93265 +/- 0.21977 (m.e.) TT Peri. = 187.75004 +/- 0.01443 Node = 262.78691 +/- 0.00006 (2000.0) Inc. = 124.22083 +/- 0.00088 q = 7.6141463 +/- 0.0002368 AU e = 1.0020951 +/- 0.0001537 1/a = -0.0002752 +/- 0.0000202 1/AU origin = +0.000123 (Q= 7) future = +0.000124 The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2016/ 170927 Z17 0.7+ 0.7- 171002 G96 0.4+ 0.2+ 161218 G96 0.2+ 0.9+ 170929 K88 0.4- 0.2+ 171002 G96 0.3+ 0.4+ 161218 G96 0.4- 0.5+ 170929 K88 0.9- 0.0 171002 691 0.3- 0.5+ 161218 G96 0.2- 1.7- 170929 U69 0.6+ 0.7- 171002 G96 0.2- 0.3+ 161218 G96 0.5+ 1.1- 170929 U69 0.6+ 1.0- 171002 691 0.1- 0.3+ 161227 G96 0.5+ 0.4+ 170929 U69 0.8+ 1.2- 171002 691 0.1+ 0.0 161227 G96 0.2+ 0.1- 170930 K88 0.3- 0.7+ 171003 G40 0.1- 0.0 161227 G96 0.2+ 0.1+ 170930 K88 0.1- 0.2+ 171003 G40 0.2- 0.3+ 161227 G96 0.6- 0.1- 170930 I52 0.1- 0.1+ 171004 850 0.4- 0.5+ 161230 G96 0.5- 0.5+ 170930 I52 0.3+ 0.3- 171004 850 0.5- 0.2+ 161230 G96 0.1+ 0.3+ 170930 I52 0.4- 0.3- 171004 850 0.5- 0.1- 161230 G96 0.6- 0.0 171001 A71 0.3+ 0.1- 171006 926 0.3- 0.3+ 161230 G96 0.4+ 0.4+ 171001 A71 0.1+ 0.1+ 171006 926 0.1+ 0.5+ 2017/ 171001 118 0.2- 0.1+ 171006 926 0.1+ 0.4+ 170926 G96 0.0 0.1- 171001 118 0.7- 0.2+ 171007 H01 0.5+ 0.6- 170926 G96 0.0 0.3- 171001 G96 0.4- 0.3+ 171007 H01 0.5+ 0.4- 170926 G96 0.1+ 0.3- 171001 G96 0.2+ 1.6+ 171007 H01 0.4+ 0.3- 170926 G96 0.2+ 0.5- 171001 G96 0.3+ 0.3+ 171007 H01 0.4+ 0.3- 170927 Z17 0.4+ 0.3- 171001 G96 0.3+ 0.3- 171007 926 0.6- 0.2- 170927 Z17 0.3- 0.0 171002 G40 0.3- 0.7+ 171007 926 0.0 0.2- 170927 Z17 0.3+ 0.5- 171002 G40 0.4- 0.1- 171007 926 0.1+ 0.1+ 170927 Z17 0.4+ 0.2- 171002 G96 0.4- 0.1+ ( ) -------- Rejected Obs.

Associate of the CBAT Syuichi Nakano 2017 Oct. 8

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