57P/du Toit-Neujmin-Delporte (1996)

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Profile

Orbital Elements The following improved orbital elements by Kenji Muraoka, are from 111 observations 1983 to 1997,including 9 Planets Moon and 5 minor planets perturbations and non-gravitational effect of style II. The mean residual is +/- 0.95 arc seconds. Epoch = 1996 Mar. 18.0 TT JDT = 2450160.5 T = 1996 Mar. 5.70843 +/- 0.00119 (m.e.) TT Peri. = 115.21425 +/- 0.00071 Node = 188.98625 +/- 0.00049 (2000.0) Incl. = 2.84566 +/- 0.00005 q = 1.7196893 +/- 0.0000017 AU e = 0.5007745 +/- 0.0000003 a = 3.4447149 +/- 0.0000012 AU n = 0.15416087 +/- 0.00000008 P = 6.393 +/- 0.0000034 years A1 = +0.263 +/- 0.059 A2 = +0.02440 +/- 0.00180

Finding Charts 1995 July 2 - 1996 Apr. 7 1996 Apr. 7 - 1997 May 12

Magnitudes Graph m1 = 12.5 + 5 log d + 15.0 log r [ ,120] ( - 1996 July 3) m1 = 1.4 + 5 log d + 30.0 log r [190, ] (1996 July 3 - )

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.