111P/Helin-Roman-Crockett (1996)

Japanese version
Home page
Updated on March 26, 1999

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* Profile

* Orbital Elements

   The following improved orbital elements by Kenji Muraoka, 
  are from 113 observations  1989 to 1998, perturbations by  
  9 Plantes, Moon and 5 minor planets were taken into account. 
   The mean residual is +/- 0.86 arc seconds.

      Epoch  =  1996 Nov. 13.0  TT       JDT = 2450400.5
          T  =  1996 Oct. 31.78429       +/- 0.00108 (m.e.) TT
       Peri. =   10.13264                +/- 0.00040
       Node  =   91.98905                +/- 0.00036   (2000.0)
       Incl. =    4.23107                +/- 0.00003
          q  =    3.4896106              +/- 0.0000012 AU
          e  =    0.1387105              +/- 0.0000003
          a  =    4.0516115              +/- 0.0000005 AU
          n  =    0.12085438             +/- 0.00000002
          P  =    8.155                  +/- 0.0000015  years

* Finding Charts

* 1995 Aug. 1 - 1998 Apr. 27

* Magnitudes Graph

        m1 = 7.0 + 5 log d + 20.0 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.