C/1997 D1 ( Mueller )

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Updated on March 26, 1999

Profile Discovery Date February 17, 1997 Magnitude 16 mag Discoverer Jean Mueller

Orbital Elements The following improved orbital elements by Kenji Muraoka, are from 421 observations 1997 Feb. 20 to 1998 Sept. 2, perturbations by 9 Planets, Moon and 5 minor planets were taken into account. The mean residual is +/- 0.60 arc seconds. Epoch = 1997 Sept. 29.0 TT JDT = 2450720.5 T = 1997 Oct. 11.61134 +/- 0.00010 (m.e.) TT Peri. = 184.96032 +/- 0.00003 Node = 279.17147 +/- 0.00003 (2000.0) Incl. = 141.88886 +/- 0.00002 q = 2.2476425 +/- 0.0000005 AU e = 1.0011074 +/- 0.0000021 1/a = -0.0004927 +/- 0.0000010 1/AU orig. 1/a = +0.000310 1/AU fut. 1/a = -0.000191 1/AU

Finding Charts 1997 Jan. 2 - 1997 Dec. 8 1997 Dec. 8 - 1999 Mar. 13

Magnitudes Graph m1 = 10.0 + 5 log d + 5.0 log r [ ,0] ( - 1997 Oct. 11) m1 = 7.5 + 5 log d + 12.0 log r [0, ] (1997 Oct. 11 - )

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.