OAA computing section circular NK 1230 P/2004 FY140 (LINEAR)
The following improved orbital elements, by S. Nakano, are from 52 observations 2004 Mar. 27 to July 12. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.42 arc second. See an orbit on YC 2486. Epoch = 2004 Aug. 23.0 TT T = 2004 Aug. 7.09313 +/- 0.36558 (m.e.) TT Peri. = 239.79059 +/- 0.04864 Node = 327.27145 +/- 0.00450 (2000.0) Inc. = 2.12719 +/- 0.00016 q = 4.1060814 +/- 0.0001217 AU e = 0.1699485 +/- 0.0000609 a = 4.9467793 +/- 0.0000791 AU n' = 0.08958190 +/- 0.00000215 P = 11.002 +/- 0.0002639 years (+/- 0.10 day) The predicted orbit for the 2015 return is as follows: T = 2015 July 24.83570 TT Epoch = 2015 Aug. 6.0 TT Peri. = 241.96471 e = 0.1702740 Node = 326.78560 (2000.0) a = 4.8923212 AU Inc. = 2.13696 n'= 0.09108181 q = 4.0592860 AU P = 10.821 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 2004/ 040416 704 0.5+ 0.2+ 040423 691 0.1+ 0.1+ 040327 704 0.1+ 0.6- 040416 704 0.3+ 1.1+ 040423 691 0.1+ 0.1+ 040327 704 0.6+ 0.5- 040416 704 0.0 0.0 040423 691 0.2+ 0.0 040327 704 0.1+ 0.4- 040416 704 0.1- 0.5+ 040426 699 0.4- 0.3+ 040327 704 0.3+ 0.4- 040420 704 0.7+ 0.2- 040426 699 0.8- 0.3- 040327 704 0.4- 0.3+ 040420 704 0.6- 0.3+ 040426 699 0.2- 0.1+ 040331 704 0.9- 0.0 040420 704 0.4+ 0.5+ 040426 699 0.0 0.6+ 040331 704 0.1+ 0.3+ 040420 704 0.1+ 0.5+ 040604 413 0.2- 0.3- 040331 704 0.3- 0.4+ 040420 704 0.2- 1.0+ 040604 413 0.3+ 0.4- 040331 704 0.3- 0.3+ 040421 704 0.6+ 0.0 040605 413 0.2- 0.0 040331 704 0.6- 0.4+ 040421 704 0.8+ 0.0 040605 413 0.1- 0.0 040402 608 0.6+ 0.4- 040421 704 0.2+ 0.1+ 040607 413 0.0 0.0 040402 608 0.1+ 0.2- 040421 704 0.3+ 0.2- 040607 413 0.1- 0.0 040402 608 0.5- 0.4- 040421 704 0.1- 0.3+ 040712 E12 0.3- 0.4- 040403 608 0.1+ 0.7- 040422 703 0.4- 0.8- 040712 E12 0.1- 0.1- 040403 608 0.1+ 0.7- 040422 703 0.7- 0.9- 040712 E12 0.1- 0.1+ 040403 608 0.5- 0.0 040422 703 0.0 0.7- 040712 E12 0.5+ 0.2+ 040416 704 0.7+ 0.8+ 040422 703 0.4+ 0.4+ ( ) -------- Rejected Obs.
Director, Computing Section Late edition Syuichi Nakano 2005 Sept. 12