Nakano Note (Nakano wa Kangaeru noda) NK 2255 P/2011 VJ5 (Lemmon)
The following improved orbital elements, by S. Nakano, are from 54 observations 2011 Nov. 3 to 2012 Mar. 30. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.66 arc second. See an orbit in NK 2219. Epoch = 2011 Dec. 25.0 TT T = 2011 Dec. 8.70306 +/- 0.00050 (m.e.) TT Peri. = 315.12611 +/- 0.00035 Node = 169.99713 +/- 0.00020 (2000.0) Inc. = 3.97259 +/- 0.00005 q = 1.5063662 +/- 0.0000048 AU e = 0.5571569 +/- 0.0000194 a = 3.4015799 +/- 0.0000438 AU n' = 0.15710249 +/- 0.00000304 P = 6.274 +/- 0.0001213 years (+/- 0.04 day) The predicted orbit for the 2018 return is as follows: T = 2018 Mar. 21.88819 TT Epoch = 2018 Mar. 23.0 TT Peri. = 315.28149 e = 0.5569419 Node = 169.91644 (2000.0) a = 3.4032277 AU Inc. = 3.97525 n'= 0.15698840 q = 1.5078277 AU P = 6.278 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2011/ 120201 G96 0.1+ 0.3+ 120219 691 (4.2- 2.1+) 111103 G96 0.0 0.3- 120201 F65 0.9+ 0.0 120219 691 (4.6- 1.4+) 111103 G96 0.3+ 0.3- 120201 F65 0.9+ 0.1- 120219 349 (2.9- 1.1+) 111103 G96 0.4- 0.2- 120201 F65 1.0+ 0.0 120219 349 (3.4- 0.6+) 111103 G96 0.4- 0.5- 120202 807 0.6+ 0.1+ 120222 H06 0.3+ 0.1- 111104 H36 1.8+ 0.7- 120202 807 0.3+ 0.1- 120222 H06 0.2- 0.1+ 111104 H36 1.4- 0.2- 120202 807 0.3+ 0.0 120227 A71 0.5- 0.1+ 111104 H36 0.4- 0.8+ 120202 807 0.4+ 0.1- 120227 A71 0.0 0.3- 111105 B18 0.6- 1.1- 120202 807 0.6+ 0.1- 120228 F51 0.3+ 0.0 111105 B18 0.3+ 0.4- 120202 G96 0.5- 0.2+ 120228 F51 0.3+ 0.0 111105 B18 0.3- 0.6- 120202 G96 0.6- 0.9+ 120228 F51 0.3+ 0.1+ 111105 B18 0.1- 0.8- 120202 G96 0.7- 0.6+ 120321 703 (3.4- 0.2+) 2012/ 120202 G96 1.5- 0.6+ 120321 703 (3.2- 1.0-) 120201 703 (2.3- 0.6+) 120202 703 0.5+ 0.6- 120321 703 (2.4- 0.9-) 120201 703 0.3- 0.1- 120202 703 0.2- 0.9- 120321 703 1.7- 1.7- 120201 703 1.1- 0.5+ 120202 703 (2.2- 0.3-) 120325 704 0.1+ 0.2+ 120201 703 (2.3- 0.3-) 120203 H06 0.1- 0.8+ 120325 704 0.8+ 0.4- 120201 703 (2.6- 0.4-) 120203 H06 1.4- 1.3+ 120325 704 0.5- 1.4+ 120201 703 0.9- 0.2- 120203 H06 (2.2- 1.4+) 120330 G96 1.5- 0.8- 120201 703 1.2- 0.7+ 120203 H06 (2.1- 1.2+) 120330 G96 1.2- 1.2- 120201 703 0.1+ 0.1+ 120204 215 0.7- 0.8+ 120330 G96 0.4- 0.9- 120201 G96 0.5+ 0.3+ 120204 215 0.4- 0.5+ 120330 G96 0.7- 1.0- 120201 G96 0.2+ 0.1- 120204 215 0.0 0.2+ 120201 G96 0.4+ 0.0 120219 691 (3.4- 1.1+) ( ) -------- Rejected Obs.
Associate of Central Bureau for Astronomical Telegrams Syuichi Nakano 2012 Apr. 28