軌道要素
The following improved orbital elements by Kenji Muraoka, are
from 321 observations 1998 Oct. 2 to 1999 Dec. 27, perturbations
by 9 Planets, Moon and 5 minor planets were taken into account.
The mean residual is +/- 0.75 arc seconds.
Epoch = 1999 July 1.0 TT JDT = 2451360.5
T = 1999 June 25.25150 +/- 0.00006 (m.e.) TT
Peri. = 226.35289 +/- 0.00013
Node = 153.35713 +/- 0.00014 (2000.0)
Incl. = 170.15984 +/- 0.00002
q = 1.4677240 +/- 0.0000004 AU
e = 0.9991009 +/- 0.0000021
1/a = +0.0006126 +/- 0.0000014 1/AU
orig. 1/a = +0.000558
fut. 1/a = +0.001457
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