OAA computing section circular NK 710 127P/Holt-Olmstead
The following improved orbital elements, by S. Nakano, are from 48 observations 1990-1996. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.72 arc second. Epoch = 1997 Feb. 1.0 TT T = 1997 Feb. 6.67990 +/- 0.00410 (m.e.) TT Peri. = 6.26216 +/- 0.00110 Node = 14.06103 +/- 0.00008 (2000.0) Inc. = 14.40707 +/- 0.00006 q = 2.1535132 +/- 0.0000053 AU e = 0.3704668 +/- 0.0000015 a = 3.4208096 +/- 0.0000035 AU n' = 0.15577965 +/- 0.00000024 P = 6.327 +/- 0.0000096 years T = 1990 Oct. 4.50878 TT Epoch = 1990 Sept.26.0 TT Peri. = 2.59146 e = 0.3922292 Node = 15.32256 (2000.0) a = 3.3620536 AU Inc. = 14.89230 n'= 0.15988110 q = 2.0433578 AU P = 6.165 years The predicted orbit for the 2003 return is as follows: T = 2003 June 12.46239 TT Epoch = 2003 June 10.0 TT Peri. = 6.49672 e = 0.3695924 Node = 14.00812 (2000.0) a = 3.4249143 AU Inc. = 14.39615 n'= 0.15549968 q = 2.1590920 AU P = 6.338 years The following residuals in seconds of arc are from the above orbital elements: 1990/ 900922 688 0.7+ 1.1+ 901119 801 1.2+ 0.2+ 900914 675 (2.1- 2.3-) 900923 675 0.0 1.0- 901206 372 0.7- 0.6- 900914 675 (1.6- 3.1-) 900923 675 0.0 0.4- 901206 372 1.8+ 0.5- 900916 675 0.1- 1.0+ 900925 688 1.1+ 0.1+ 901207 372 (2.7- 1.3-) 900916 675 1.8- 0.1+ 900925 688 0.9+ 0.1+ 901214 801 0.9+ 0.5+ 900918 675 0.9- 0.6- 900926 372 0.4+ 0.6- 901214 801 0.8+ 0.3+ 900918 675 1.6- 1.2- 900930 372 0.0 0.3- 1996/ 900919 801 0.9- 0.1+ 901015 095 (4.1- 3.5+) 960616 568 1.0+ 0.2+ 900919 801 0.8- 0.1- 901015 095 (2.3+ 1.8-) 960616 568 0.8+ 0.4+ 900920 657 (5.0- 6.4-) 901016 801 0.2- 0.1+ 960616 568 0.8+ 0.4+ 900920 657 (4.5- 6.4-) 901016 801 0.1- 0.1- 960919 696 0.4+ 0.6- 900920 675 0.5+ 1.1+ 901020 801 1.2- 0.2- 960919 696 0.6+ 0.5- 900920 675 0.5+ 0.3+ 901020 801 0.5- 0.8- 960919 691 0.2- 0.4- 900920 372 0.6- 0.4+ 901020 372 0.6+ 0.8- 960919 691 0.5- 0.0 900920 372 1.2- 0.2+ 901023 372 1.5+ 0.4- 960919 691 0.3- 0.2- 900921 801 0.6- 0.1- 901023 372 1.3- 0.8+ 960920 691 0.3- 0.1+ 900921 801 0.3- 0.1+ 901111 372 0.9- 0.4+ 960920 691 0.4- 1.2- 900921 372 0.8- 0.5+ 901114 801 1.0+ 0.2+ 960920 691 0.2- 0.0 900921 372 (2.0- 0.4+) 901114 801 0.8+ 0.2+ 900922 688 0.5+ 1.2+ 901119 801 1.3+ 0.2+ ( ) -------- Rejected Obs.
Director, Computing Section Syuichi Nakano 2000 May 12