81P/Wild 2 (1997)

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Updated on September 29, 2004

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Orbital Elements The following improved orbital elements by Kenji Muraoka, are from 760 observations 1978 to 1997, including 9 Planets, Moon and 5 minor planets perturbations and non-gravitational effect of style II. The mean residual is +/- 0.80 arc seconds. Epoch = 1997 Apr. 22.0 TT JDT = 2450560.5 T = 1997 May 6.62722 +/- 0.00017 (m.e.) TT Peri. = 41.76780 +/- 0.00013 Node = 136.15645 +/- 0.00010 (2000.0) Incl. = 3.24261 +/- 0.00001 q = 1.5826222 +/- 0.0000006 AU e = 0.5402209 +/- 0.0000002 a = 3.4421362 +/- 0.0000006 AU n = 0.15433414 +/- 0.00000004 P = 6.386 +/- 0.0000017 years A1 = +0.113 +/- 0.006 A2 = +0.02089 +/- 0.00023

Finding Charts 1996 Jan. 8 - 1997 June 11 1997 June 11 - 1998 Apr. 27

Magnitudes Graph m1 = 5.3 + 5 log d + 21.6 log r(t + 20) [ ,95] ( - 1997 Aug. 9) m1 = 8.2 + 5 log d + 12.5 log r [95, ] (1997 Aug. 9 - )

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.