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Updated on September 29, 2004 

Orbital ElementsThe following improved orbital elements by Kenji Muraoka, are from 360 observations 1990 Nov. 11 to 1999 Apr. 15, including 9 Planets Moon and 5 minor planets perturbations and nongravitational effect of style II. The mean residual is +/ 0.87 arc seconds. Epoch = 1997 Dec. 18.0 TT JDT = 2450800.5 T = 1997 Dec. 12.27163 +/ 0.00318 (m.e.) TT Peri. = 355.37636 +/ 0.00139 Node = 108.85859 +/ 0.00003 (2000.0) Incl. = 20.54699 +/ 0.00003 q = 1.9478423 +/ 0.0000022 AU e = 0.4659871 +/ 0.0000027 a = 3.6475567 +/ 0.0000052 AU n = 0.14148194 +/ 0.00000030 P = 6.966 +/ 0.0000148 years A1 = +2.238 +/ 0.268 A2 = +0.60905 +/ 0.05127

Finding Charts 
Magnitudes Graphm1 = 8.5 + 5 log d + 30 log r [ ,70] (  1997 Oct. 3) m1 = 40.8 + 5 log d  78.5 log r(t + 100) [40, 75] (1997 Oct. 3  1998 Feb. 25) m1 = 4.8 + 5 log d + 20.0 log r [ 75, ] (1998 Feb. 25  ) * Gray curve is: m1 = 8.5 + 5 log d + 30 log r

The orbital elements are calculated by Kenji Muraoka.
