46P/Wirtanen (1997)

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Updated on September 29, 2004

Profile

Orbital Elements The following improved orbital elements by Kenji Muraoka, are from 227 observations 1985 to 1997, including 9 Planets, Moon and 5 minor planets perturbations and non-gravitational effect of style II. The mean residual is +/- 0.65 arc seconds. Epoch = 1997 Mar. 13.0 TT JDT = 2450520.5 T = 1997 Mar. 14.15009 +/- 0.00155 (m.e.) TT Peri. = 356.34155 +/- 0.00046 Node = 82.20583 +/- 0.00013 (2000.0) Incl. = 11.72253 +/- 0.00002 q = 1.0637636 +/- 0.0000013 AU e = 0.6567484 +/- 0.0000002 a = 3.0990786 +/- 0.0000014 AU n = 0.18065716 +/- 0.00000012 P = 5.456 +/- 0.0000036 years A1 = +0.291 +/- 0.038 A2 = -0.17211 +/- 0.00078

Finding Charts 1996 July 6 - 1997 Apr. 12 1997 Apr. 12 - 1997 Sept.19

Magnitudes Graph m1 = 14.5 + 5 log d + 8.0 log r [ ,-150] ( - 1996 Oct. 15) m1 = 8.0 + 5 log d + 27.0 log r(t - 12) [-150, 180] (1996 Oct. 15 - 1997 Sept.10) m1 = 14.5 + 5 log d + 8.0 log r [ 180, ] (1997 Sept.10 - )

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.