記事タイトル：Comet C/2002 C1 (Ikeya-Zhang)'s Orbit　

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お名前： 佐藤　裕久 　　 
Muraoka's orbit

   The following improved orbital elements, by Kenji Muraoka, are
  from 190 observations  2002 Feb.  1  to  14, perturbations, by 
  9 Planets, Moon and 5 minor planets were taken into account. 
   The mean residual is +/- 0.64 arc seconds.

      Epoch  =  2002 Mar. 27.0  TT       JDT = 2452360.5
          T  =  2002 Mar. 18.93979       +/- 0.00042 (m.e.) TT
       Peri. =   34.57971                +/- 0.00266
       Node  =   93.41399                +/- 0.01271   (2000.0)
       Incl. =   28.11126                +/- 0.00904
          q  =    0.5071990              +/- 0.0159253 AU
          e  =    0.9911915              +/- 0.0001950
          a  =   57.5804972              +/- 1.2823589 AU
          n゜ =    0.00225575             +/- 0.00007536
          P  =  436.93                   +/-14.60      years

Sato's orbit

Orbital elements:
C/2002 C1 (Ikeya-Zhang)
T 2002 Mar. 18.9389 TT                                  
q   0.507151             (2000.0)            P               Q
z  +0.017650       Peri.   34.5829      -0.5488744      -0.6910284
                   Node    93.4206      +0.6202357      -0.7138925
e   0.991049       Incl.   28.1107      +0.5603968      +0.1133015
P 426.47
From 190 observations 2002 Feb. 1-14, mean residual 0".65.
[2002年2月16日 20時15分34秒]
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