軌道要素
   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
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