OAA computing section circular NK 871 P/2001 R6 (LINEAR-Skiff)
The following improved orbital elements, by S. Nakano, are from 98 observations 2001 Aug. 19 to 2002 Feb. 1. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.70 arc second. Epoch = 2001 Oct. 18.0 TT T = 2001 Oct. 27.08866 +/- 0.00368 (m.e.) TT Peri. = 306.19051 +/- 0.00227 Node = 70.32266 +/- 0.00212 (2000.0) Inc. = 17.34485 +/- 0.00071 q = 2.1150728 +/- 0.0000676 AU e = 0.4859431 +/- 0.0000105 a = 4.1144725 +/- 0.0000379 AU n' = 0.11809536 +/- 0.00000163 P = 8.346 +/- 0.0001154 years (+/- 0.04 day) The predicted orbit for the 2010 return is as follows: T = 2010 Mar. 26.16236 TT Epoch = 2010 Mar. 25.0 TT Peri. = 308.44850 e = 0.4776754 Node = 67.32374 (2000.0) a = 4.1710487 AU Inc. = 17.38643 n'= 0.11570075 q = 2.1786415 AU P = 8.519 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2001/ 010927 413 0.6+ 0.3- 011116 699 0.2- 0.3+ 010819 704 0.9+ 0.6+ 010927 413 0.5+ 0.7- 011120 402 0.1- 1.1- 010819 704 0.3+ 0.2+ 010927 413 1.0+ 0.2+ 011120 402 0.4+ 0.1+ 010819 704 0.8+ 0.4+ 010928 372 (2.1- 1.0+) 011120 402 0.5- 0.3+ 010819 704 0.9+ 0.2+ 011008 170 (5.3- 0.1-) 011121 342 0.1+ 0.4+ 010911 704 1.0+ 0.3+ 011008 170 1.3+ 0.9- 011121 360 0.1- 0.3- 010911 704 (1.9+ 2.4-) 011010 342 0.2- 0.1+ 011121 360 0.2- 0.5- 010911 704 0.6+ 1.5- 011010 342 0.2+ 0.2- 011121 342 0.4+ 0.1- 010911 704 1.4+ 0.9- 011012 372 1.0- 0.3- 011202 170 0.1+ 1.2+ 010911 704 0.6+ 1.7- 011013 360 0.1- 0.1+ 011215 704 0.1- 0.6- 010916 704 1.1+ 0.1- 011013 360 0.1+ 0.0 011215 704 0.3- 1.0- 010916 704 0.3- 0.5- 011013 372 0.1+ 0.2- 011215 704 1.1+ 0.3+ 010916 704 0.1- 1.0- 011013 372 1.1- 0.0 011215 704 1.1+ 0.2+ 010925 699 (2.7- 1.7+) 011014 402 0.2+ 0.2- 011215 587 1.1+ 0.3+ 010925 699 (2.5- 1.7+) 011014 402 0.2- 0.0 011215 587 (1.4+ 2.4+) 010925 699 0.8- 1.0+ 011014 402 1.0+ 0.2- 011215 587 0.0 0.6- 010925 699 0.7- 1.0+ 011015 704 0.5- 0.3+ 011219 360 0.3- 0.2- 010925 699 1.8- 0.4+ 011015 704 0.1+ 1.3+ 011219 360 0.2- 0.4- 010925 699 1.7- 0.4+ 011015 704 0.4+ 0.2- 2002/ 010925 699 (3.0- 0.5+) 011015 704 0.6+ 0.4+ 020105 699 1.4+ 0.2- 010925 699 (2.8- 0.5+) 011018 170 1.1- 0.6+ 020105 699 (2.3+ 1.9+) 010925 322 (5.2- 1.9-) 011018 170 0.3- 0.8+ 020105 699 1.7+ 0.5+ 010925 322 (3.6- 0.5+) 011023 402 0.1- 0.1- 020105 699 (2.1+ 0.8+) 010925 322 0.8- 1.4+ 011023 402 0.4- 0.1+ 020113 360 0.4- 0.2+ 010926 699 1.8- 0.8+ 011023 402 0.0 0.1- 020113 360 0.8- 0.2+ 010926 699 1.7- 0.1+ 011024 360 0.2+ 0.6- 020113 360 0.7- 0.6- 010926 699 0.9- 1.0+ 011024 360 0.1+ 0.7- 020114 704 0.1+ 0.6+ 010926 699 1.2- 0.9+ 011025 352 0.6+ 1.4- 020114 704 0.1- 0.8- 010926 711 0.1+ 0.6+ 011025 352 1.1+ 0.8- 020114 699 (0.5- 2.1+) 010926 711 0.2- 0.2+ 011025 352 0.1- 0.1+ 020114 704 0.6- 0.1- 010926 711 0.1+ 0.0 011107 644 0.2- 1.1- 020114 699 1.2- 1.3+ 010927 711 0.4- 0.5+ 011107 644 0.6+ 0.5- 020114 704 0.7+ 0.4- 010927 711 0.1+ 0.4+ 011107 644 0.4- 1.0- 020114 704 (2.0+ 1.4+) 010927 711 0.1- 0.4+ 011107 644 0.5+ 0.5- 020114 699 (1.3+ 2.2+) 010927 333 0.7- 0.2+ 011107 644 0.4- 0.9- 020114 699 (6.7+ 0.6-) 010927 333 0.2+ 0.6- 011107 644 0.5+ 0.7- 020201 360 0.0 0.7+ 010927 333 0.0 0.7- 011116 699 0.3+ 1.8+ 020201 360 0.2- 0.3+ 010927 413 0.4+ 0.1- 011116 699 0.0 1.1+ 020201 360 0.3- 0.2+ 010927 413 0.5+ 0.4- 011116 699 0.8- 1.4+ ( ) -------- Rejected Obs.
Director, Computing Section Late edition Syuichi Nakano 2002 Feb. 25