OAA computing section circular NK 1575 P/2007 VQ11 (Catalina)

The following improved orbital elements, by S. Nakano, are from 48 observations 2007 Nov. 3 to 2008 Feb. 10. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.63 arc second. Epoch = 2008 Feb. 24.0 TT T = 2008 Feb. 13.54320 +/- 0.05370 (m.e.) TT Peri. = 277.64773 +/- 0.01705 Node = 164.05840 +/- 0.00180 (2000.0) Inc. = 12.32501 +/- 0.00008 q = 2.6938542 +/- 0.0000973 AU e = 0.5020196 +/- 0.0000685 a = 5.4095585 +/- 0.0001422 AU n' = 0.07833599 +/- 0.00000309 P = 12.582 +/- 0.0004961 years (+/- 0.18 day) The predicted orbit for the 2020 return is as follows: T = 2020 Sept.15.32967 TT Epoch = 2020 Sept.28.0 TT Peri. = 277.60086 e = 0.5030566 Node = 163.82135 (2000.0) a = 5.4248106 AU Inc. = 12.32038 n'= 0.07800585 q = 2.6958237 AU P = 12.635 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2007/ 071205 703 0.4- 0.1- 080202 215 0.2+ 0.2+ 071103 703 0.1- 0.5- 071205 703 0.7- 0.5+ 080202 215 0.4- 0.6- 071103 703 0.4- 0.1+ 071205 703 0.5- 0.6+ 080202 215 0.0 1.2- 071103 703 0.6- 0.8+ 2008/ 080202 204 0.2+ 0.1- 071103 703 0.8- 0.4+ 080201 703 1.2+ 0.5- 080202 204 0.0 0.4- 071106 D29 0.5+ 0.2- 080201 703 1.0+ 1.0+ 080205 118 1.4- 0.4- 071106 D29 1.2+ 0.1- 080201 703 0.7+ 1.1+ 080205 118 1.1- 1.0- 071106 D29 0.5+ 0.2- 080201 703 1.1+ 0.6+ 080206 A77 (0.4- 3.4+) 071106 D29 0.3+ 0.5+ 080201 703 0.3- 0.4+ 080206 A77 1.2- 1.1- 071109 703 0.3+ 0.8+ 080201 703 0.1- 1.0+ 080206 A77 (0.9+ 2.3+) 071109 703 0.4- 0.1+ 080201 703 0.4+ 0.0 080207 G96 0.2+ 0.3+ 071109 703 1.1- 1.0- 080201 673 0.8- 0.4- 080207 G96 1.2+ 0.3+ 071109 703 0.2+ 1.0- 080201 673 0.8- 0.3- 080207 G96 1.0+ 0.2+ 071118 699 0.8+ 0.4+ 080201 673 0.6- 0.0 080207 G96 0.4+ 0.0 071118 699 0.7- 0.0 080201 673 0.4- 0.4+ 080210 349 0.6+ 0.8+ 071118 699 0.3+ 0.1+ 080201 J95 0.3- 0.0 080210 349 0.2- 0.0 071118 699 1.0+ 0.6- 080201 J95 0.4- 0.0 071205 703 0.6+ 0.4- 080201 J95 0.1- 0.3- ( ) -------- Rejected Obs.

Director, Computing Section Syuichi Nakano 2008 Feb. 14

Back to Nakano Note Page