OAA computing section circular NK 883 P/2002 AR2 (LINEAR)
The following improved orbital elements, by S. Nakano, are from 39 observations 2002 Jan. 6 to Apr. 7. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.52 arc second. Epoch = 2002 Jan. 6.0 TT T = 2002 Jan. 16.53113 +/- 0.00965 (m.e.) TT Peri. = 73.67163 +/- 0.00657 Node = 7.84723 +/- 0.00654 (2000.0) Inc. = 21.10916 +/- 0.00090 q = 2.0644451 +/- 0.0010305 AU e = 0.6156698 +/- 0.0001293 a = 5.3715397 +/- 0.0006019 AU n' = 0.07916913 +/- 0.00001331 P = 12.449 +/- 0.0020926 years (+/- 0.76 day) The predicted orbit for the 2014 return is as follows: T = 2014 May 15.42341 TT Epoch = 2014 May 23.0 TT Peri. = 73.41103 e = 0.6164710 Node = 7.66831 (2000.0) a = 5.3414583 AU Inc. = 21.10465 n'= 0.07983886 q = 2.0486043 AU P = 12.345 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2002/ 020109 704 0.6+ 0.6- 020405 966 0.3- 0.8+ 020106 704 0.1- 0.1+ 020109 704 (1.9+ 2.2-) 020405 557 0.1- 0.2- 020106 704 0.3- 0.0 020109 704 (1.4+ 2.3-) 020406 696 0.5- 0.2- 020106 704 0.0 0.4+ 020202 704 1.1- 0.2- 020406 696 0.1- 0.4- 020106 704 0.6- 0.2+ 020202 704 0.8- 0.1- 020406 540 0.1+ 0.2+ 020106 704 0.0 0.3+ 020202 704 (2.1- 0.2-) 020406 540 0.7- 0.7- 020108 704 0.1+ 0.1+ 020225 704 0.5+ 0.4+ 020406 540 0.8+ 1.2- 020108 704 0.9- 0.5+ 020225 704 0.9+ 0.7- 020406 966 0.2- 0.1+ 020108 704 0.3+ 0.4- 020225 704 0.4+ 0.2- 020406 966 0.2+ 0.1+ 020108 704 0.5+ 1.3- 020304 704 0.0 0.2+ 020407 696 1.1- 0.0 020108 704 0.0 0.2- 020304 704 0.4- 0.7+ 020407 696 0.2+ 0.7- 020108 704 0.6- 0.5- 020304 704 0.1+ 0.1+ 020407 118 0.4+ 0.5+ 020108 704 0.5+ 0.9+ 020405 557 0.4+ 0.4- 020407 118 0.4- 0.6+ 020108 704 0.9+ 0.3+ 020405 966 0.2+ 0.9+ 020109 704 0.4+ 0.3+ 020405 557 0.7+ 0.4+ ( ) -------- Rejected Obs.
Director, Computing Section Late edition Syuichi Nakano 2002 Oct. 31