Orbital Elements
The following improved orbital elements by Kenji Muraoka, are
from 171 observations 1997 Apr. 12 to 1998 Oct. 18, perturbations
by 9 Planets, Moon and 5 minor planets were taken into account.
The mean residual is +/- 0.75 arc seconds.
Epoch = 1998 Apr. 17.0 TT JDT = 2450920.5
T = 1998 Apr. 16.34313 +/- 0.00106 (m.e.) TT
Peri. = 239.85527 +/- 0.00018
Node = 55.80386 +/- 0.00007 (2000.0)
Incl. = 69.83881 +/- 0.00015
q = 3.0847713 +/- 0.0000061 AU
e = 0.9942334 +/- 0.0000099
1/a = +0.0018694 +/- 0.0000032 1/AU
( P = 12372 years )
orig. 1/a = +0.002513 1/AU
fut. 1/a = +0.002671 1/AU
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