The following improved orbital elements by Kenji Muraoka, are from
888 observations 1999 Apr. 16 to Dec. 10, including 8 Planets, Moon
and 3 minor planets perturbations and non-gravitational effect of
style II. The mean residual is +/- 0.78 arc seconds.
Epoch = 1999 July 1.0 TT JDT = 2451360.5
T = 1999 July 11.17316 +/- 0.00019 (m.e.) TT
Peri. = 40.70436 +/- 0.00060
Node = 162.65140 +/- 0.00018 (2000.0)
Incl. = 149.35276 +/- 0.00009
q = 0.7080729 +/- 0.0000070 AU
e = 0.9996221 +/- 0.0000050
1/a = +0.0005337 +/- 0.0000071 1/AU
A1 = +2.65 +/- 0.28
A2 = -0.1028 +/- 0.0527
( P = 81103 years )