OAA computing section circular NK 1198 P/1999 DN3 (Korlevic-Juric)
The following improved orbital elements, by S. Nakano, are from 43 observations 1999 Feb. 18 to July 7. Perturbations by Mercury to Neptune and three minor planets, Ceres, Pallas and Vesta, were taken into account. The mean residual is +/- 0.65 arc second. See a previous orbit in NK 752 (= HICQ 2005). Epoch = 1998 Sept.24.0 TT T = 1998 Oct. 1.34044 +/- 0.26328 (m.e.) TT Peri. = 161.37295 +/- 0.03655 Node = 5.95468 +/- 0.00020 (2000.0) Inc. = 18.72007 +/- 0.00059 q = 3.9084589 +/- 0.0001347 AU e = 0.1350743 +/- 0.0000353 a = 4.5188376 +/- 0.0000534 AU n' = 0.10260392 +/- 0.00000182 P = 9.606 +/- 0.0001703 years (+/- 0.06 day) The predicted orbit for the 2008 return is as follows: T = 2008 May 11.01147 TT Epoch = 2008 May 14.0 TT Peri. = 161.76682 e = 0.1358863 Node = 5.84273 (2000.0) a = 4.5070640 AU Inc. = 18.73095 n'= 0.10300623 q = 3.8946160 AU P = 9.568 years The following residuals in seconds of arc are from the above orbital elements: Date Code Residual(") Date Code Residual(") Date Code Residual(") 1999/ 990410 699 0.4+ 0.1+ 990514 719 (3.2- 2.2-) 990218 120 0.0 0.1- 990414 704 0.1- 0.5- 990516 046 0.2- 0.8- 990219 120 1.7+ 0.4- 990414 704 0.3- 0.2+ 990516 046 0.1+ 0.1+ 990219 120 (4.1+ 1.5+) 990414 704 0.7+ 0.2+ 990516 046 0.6+ 0.8- 990224 120 1.7- 0.6+ 990415 704 0.3+ 0.0 990520 402 0.1- 0.6+ 990224 120 0.4- 0.9- 990415 704 1.0+ 0.3- 990520 402 0.1- 0.5+ 990324 699 0.4+ 0.5- 990415 704 1.0- 0.4+ 990520 402 1.7- 0.1- 990324 699 0.1+ 1.3+ 990415 704 0.1- 0.4- 990520 360 0.7- 0.1- 990324 699 1.2+ 0.3+ 990415 704 (3.0- 0.4-) 990520 360 1.1- 0.3- 990406 704 0.3- 0.0 990514 860 0.3- 0.3- 990520 360 0.7- 0.3- 990406 704 0.9- 0.4+ 990514 860 1.4+ 0.5+ 990614 867 0.1- 0.5+ 990406 704 1.2- 0.2- 990514 860 1.3+ 0.9+ 990614 867 0.4- 0.0 990406 704 0.1- 0.6- 990514 734 0.3+ 1.1- 990614 867 0.2- 0.3+ 990406 704 0.5- 0.3- 990514 719 (1.2+ 2.3+) 990707 360 0.2- 0.3- 990410 699 0.3+ 0.4+ 990514 734 1.4+ 0.3+ 990707 360 0.1+ 0.2- 990410 699 0.1- 0.7+ 990514 734 0.6+ 0.1+ 990707 360 0.7+ 0.0 ( ) -------- Rejected Obs.
Director, Computing Section Syuichi Nakano 2005 July 4