P/1999 XN120 ( Catalina )

Japanese version
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Updated on January 30, 2001

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* Profile

Discovery Date December 5, 1999
Magnitude 16.9 mag
Discoverer Catalina Sky Survey

* Orbital Elements

   The following improved orbital elements by Kenji Muraoka, are
  from 66 observations 1999 Nov. 3 to 2000 Mar. 18, perturbations
  by 9 Planets, Moon and 5 minor planets were taken into account. 
   The mean residual is +/- 0.61 arc seconds.

      Epoch  =  2000 May  16.0  TT       JDT = 2451680.5
          T  =  2000 May   1.54310       +/- 0.07693 (m.e.) TT
       Peri. =  161.82444                +/- 0.02698
       Node  =  285.45532                +/- 0.03437   (2000.0)
       Incl. =    5.03075                +/- 0.00732
          q  =    3.2862679              +/- 0.0001965 AU
          e  =    0.2131807              +/- 0.0000385
          a  =    4.1766489              +/- 0.0001436 AU
          n  =    0.11546813             +/- 0.00000595
          P  =    8.536                  +/- 0.0004402  years
                                        (+/- 0.16 day)

* Finding Charts

* Magnitudes Graph

        m1 =  10.0 + 5 log d +  10.0 log r  [ ,0]  (             - 2000 May   1)
        m1 = -88.2 + 5 log d + 200   log r  [0, ]  (2000 May   1  -            )

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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.