C/1997 P2 ( Spacewatch )

Japanese version
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Updated on December 25, 1997

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* Profile

Discovery Date August 12, 1997
Magnitude 18.6 mag
Discoverer Spacewatch (Kitt Peak)

* Orbital Elements

   The following improved orbital elements by Kenji Muraoka, are 
  from  90 observations  1997 Aug. 12 to Sept. 30, perturbations 
  by 9 Planets, Moon and 5 minor planets were taken into account.
   The mean residual is +/- 0.63 arc seconds.

      Epoch  =  1997 Aug. 20.0  TT       JDT = 2450680.5
          T  =  1997 Aug. 31.12099       +/- 0.77531 (m.e.) TT
       Peri. =   24.49517                +/- 0.18312
       Node  =  302.91720                +/- 0.22980   (2000.0)
       Incl. =   14.58375                +/- 0.05987
          q  =    4.2633919              +/- 0.0011667 AU
          e  =    1.0284013              +/- 0.0000916
        1/a  =   -0.0066617              +/- 0.0000216 1/AU
  orig. 1/a  =   -0.0000311 
  fut.  1/a  =   -0.0023503 

* Finding Charts

* 1997 May 2 - 1998 Oct. 24

* Magnitudes Graph

        m1 = 10.0 + 5 log d + 10.0 log r

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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.

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Copyright(C) Seiichi Yoshida (comet@aerith.net). All rights reserved.