OAA computing section circular NK 510R D/Kowal-Mrkos
The following improved orbital elements, by S. Nakano, are from 8 observations 1984 Apr. 23-1984 May 19. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 1.26 arc seconds. See previous computation on NK 510. Epoch = 1984 May 20.0 TT T = 1984 June 7.60366 +/- 0.69359 (m.e.) TT Peri. = 337.97197 +/- 0.33292 Node = 249.31675 +/- 0.02174 (2000.0) Inc. = 2.95522 +/- 0.00235 q = 1.9512012 +/- 0.0020100 AU e = 0.4825206 +/- 0.0017248 a = 3.7705871 +/- 0.0034887 AU n' = 0.13461412 +/- 0.00018682 P = 7.322 +/- 0.0101614 years (+/- 3.71 day) The predicted orbit for the 2000 return is as follows: T = 2000 Nov. 3.06752 TT Epoch = 2000 Oct. 23.0 TT Peri. = 315.72427 e = 0.3924692 Node = 245.41756 (2000.0) a = 4.4324689 AU Inc. = 5.35318 n'= 0.10561741 q = 2.6928614 AU P = 9.332 years The following residuals in seconds of arc are from the above orbital elements: 19/ 19/ 19/ 840423 675 1.2- 0.1- 840430 675 1.2+ 2.5+ 840519 046 0.9- 0.3- 840423 675 0.7+ 0.8- 840502 046 0.4+ 1.7- 840519 046 1.0+ 0.4+ 840430 675 1.1+ 1.3+ 840502 046 2.3- 1.4- ( ) -------- Rejected Obs.
Director, Computing Section Syuichi Nakano 1997 May 4