Nakano Note (Nakano wa Kangaeru noda) NK 4254 P/2005 CR16 = 2003 WR168 = C3XUF62
The following improved orbital elements, by S. Nakano, are from 95 observations 2003 to 2020. 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. Identification with C3XUF62 found by Hidetaka Sato, Tokyo, Japan. Residuals for recovery observations on November 16 were +17'.6 for Right Ascension and +4'.4 for Declination from a multipul orbit 2003-2005 in MPO 132989 with the delta-T correction = -1.29 days. The object has passed 0.85 AU from Jupiter on 1951 Sept. 3 UT. Epoch = 2021 July 5.0 TT T = 2021 June 23.56299 +/- 0.00773 (m.e.) TT Peri. = 313.09579 +/- 0.00129 Node = 139.98042 +/- 0.00012 (2000.0) Inc. = 9.39377 +/- 0.00002 q = 3.2469877 +/- 0.0000013 AU e = 0.5103851 +/- 0.0000002 a = 6.6317181 +/- 0.0000038 AU n' = 0.05771185 +/- 0.00000005 P = 17.078 +/- 0.0000146 years T = 2004 June 25.94073 TT Epoch = 2004 July 14.0 TT Peri. = 312.96138 e = 0.5095397 Node = 140.22637 (2000.0) a = 6.6073358 AU Inc. = 9.40419 n'= 0.05803159 q = 3.2406357 AU P = 16.984 years The predicted orbit for the 2038 return is as follows: T = 2038 Aug. 25.90352 TT Epoch = 2038 Sept.14.0 TT Peri. = 313.16703 e = 0.5123187 Node = 139.93085 (2000.0) a = 6.6876378 AU Inc. = 9.39453 n'= 0.05698952 q = 3.2614358 AU P = 17.295 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2003/ 050308 693 0.0 0.0 201105 G96 0.4- 0.3- 031119 644 0.4+ 0.5+ 050308 693 0.1+ 0.0 201105 G96 0.5+ 0.0 031119 644 0.3+ 0.3+ 050310 G96 0.0 0.5- 201105 G96 0.1- 0.1+ 031119 644 0.3+ 0.2+ 050310 G96 0.2+ 0.5- 201105 G96 0.4- 0.3- 031119 644 0.1+ 1.1+ 050310 G96 0.1+ 0.4- 201116 G96 0.2- 0.0 031119 644 0.4+ 0.4+ 050310 G96 0.2+ 0.6- 201116 G96 0.3- 0.1- 031119 644 0.2+ 0.1+ 050404 693 0.6+ 0.1+ 201116 G96 0.1+ 0.1- 031121 699 0.4- 0.5+ 050404 693 0.2+ 0.2- 201116 G96 0.2- 0.1+ 031121 699 1.2- 0.3+ 050404 693 0.2+ 0.1- 201116 I52 0.2+ 0.5- 031121 699 (2.3- 1.0+) 050404 693 0.1- 0.0 201116 I52 0.1- 0.4+ 031121 699 1.2- 0.6+ 2020/ 201116 I52 0.5+ 0.3- 2005/ 200829 G96 0.1+ 0.1- 201116 I52 0.8+ 0.4+ 050117 691 0.9- 0.4+ 200829 G96 0.6+ 0.2+ 201117 H06 0.1- 0.1- 050117 691 0.6- 0.1+ 200829 G96 0.3- 0.1- 201117 H06 0.1- 0.1- 050117 691 0.5- 0.0 200829 G96 0.3- 0.7+ 201117 711 0.4+ 0.9+ 050202 704 0.7+ 0.0 200921 G96 0.6- 0.0 201117 711 0.4+ 1.0+ 050202 704 0.7+ 0.8- 200921 G96 0.0 0.2+ 201117 H06 0.3+ 0.2- 050202 704 0.8+ 0.6+ 200921 G96 0.4+ 0.2- 201117 711 0.5+ 0.8+ 050204 691 0.6- 0.0 201014 F52 0.1- 0.1+ 201117 L01 0.4- 0.2+ 050204 691 0.4- 0.2+ 201014 F52 0.1- 0.1+ 201117 L01 0.3+ 0.2+ 050204 691 0.3- 0.1- 201014 F52 0.1+ 0.0 201118 711 0.0 1.6+ 050209 699 1.6- 0.4+ 201014 F52 0.0 0.1- 201118 711 0.5- 0.9+ 050209 699 0.4- 1.1+ 201016 G96 0.1+ 0.2- 201118 711 0.4+ 0.7+ 050209 699 0.3- 1.1+ 201016 G96 0.3- 0.1- 201118 246 0.1- 0.5+ 050209 699 0.3- 0.2- 201016 G96 0.1- 0.2+ 201118 246 0.3- 0.6- 050304 691 0.7+ 0.2+ 201016 G96 0.3- 0.2+ 201118 246 0.2+ 1.1+ 050304 691 0.3+ 0.2+ 201019 F52 0.2+ 0.2- 201118 246 0.1+ 0.6+ 050304 691 0.9+ 0.1+ 201019 F52 0.0 0.1- 201118 246 0.3- 0.1+ 050308 G96 0.3+ 0.4- 201019 F52 0.1+ 0.3- 201118 K63 1.0+ 0.2+ 050308 G96 0.1+ 0.4- 201024 F52 0.3+ 0.0 201118 K61 0.3+ 0.9- 050308 G96 0.3+ 0.6- 201024 F52 0.2- 0.1- 201118 K61 0.2+ 1.0- 050308 G96 0.2- 0.5- 201024 F52 0.4- 0.0 201118 K61 0.3+ 0.9- 050308 693 0.2+ 0.0 201024 F52 0.1- 0.3- 201118 K63 0.1+ 0.6+ ( ) -------- Rejected Obs.
Associate of the CBAT Syuichi Nakano 2020 Nov. 19