The following improved orbital elements by Kenji Muraoka, are
from 553 observations 1998 May 26 to 1999 Feb. 14, perturbations
by 9 Planets, Moon and 5 minor planets were taken into account.
The mean residual is +/- 0.60 arc seconds.
Epoch = 1998 July 6.0 TT JDT = 2451000.5
T = 1998 July 17.44629 +/- 0.00002 (m.e.) TT
Peri. = 99.45875 +/- 0.00014
Node = 211.11919 +/- 0.00014 (2000.0)
Incl. = 9.92700 +/- 0.00002
q = 0.9635471 +/- 0.0000001 AU
e = 0.9866924 +/- 0.0000040
1/a = +0.0138110 +/- 0.0000041 1/AU
( P = 616 years )
Finding Charts
Magnitudes Graph
m1 = 15.5 + 5 log d + 25.0 log r [ , 0] ( - 1998 July 17)
m1 = 14.5 + 5 log d - 14.5 log r [ 0,40] (1998 July 17 - 1998 Aug. 26)
m1 = 14.0 + 5 log d - 2.5 log r [40,70] (1998 Aug. 26 - 1998 Sept.25)
m1 = 12.7 + 5 log d + 5.0 log r [70, ] (1998 Sept.25 - )
* Gray curve is: m1 = 15.5 + 5 log d + 25.0 log r
The orbital elements are calculated by Kenji Muraoka.
The charts are made with StellaNavigator Ver.2.0 for Windows
(AstroArts / ASCII).
The magnitudes graphs are made with Comet for Windows.
Copyright(C) Seiichi Yoshida (comet@aerith.net). All rights reserved.