128P/Shoemaker-Holt 1 (1997)

Japanese version
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Updated on September 29, 2004

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* Profile

Designation 128P/1996 S2
Recovery Date September 19, 1996
Magnitude 20.7 mag
Recoverer J. V. Scotti (Kitt Peak)

* Orbital Elements

    Comet 128P/Shoemaker-Holt 1 ( Nucleus A )

   The following improved orbital elements by Kenji Muraoka, are 
  from 67 observations 1987 Sept. 24 to 1996 Dec. 4, perturbations 
  by 9 Planets, Moon and 5 minor planets were taken into account. 
   The mean residual is +/- 0.89 arc seconds.

      Epoch  =  1997 Nov.  8.0  TT       JDT = 2450760.5
          T  =  1997 Nov. 20.27420       +/- 0.00651 (m.e.) TT
       Peri. =  210.21402                +/- 0.00125
       Node  =  214.52736                +/- 0.00038   (2000.0)
       Incl. =    4.36150                +/- 0.00005
          q  =    3.0470294              +/- 0.0000016 AU
          e  =    0.3212741              +/- 0.0000003
          a  =    4.4893375              +/- 0.0000007 AU
          n  =    0.10361692             +/- 0.00000003
          P  =    9.512                  +/- 0.0000023  years


    Comet 128P/Shoemaker-Holt 1 ( Nucleus B )

   The following improved orbital elements by Kenji Muraoka, are 
  from 277 observations 1987 Sep. 24 to 1999 Feb.  14 perturbations  
  by 9 Plantes, Moon and 5 minor planets were taken into account. 
   The mean residual is +/- 0.82 arc seconds.

      Epoch  =  1997 Nov.  8.0  TT       JDT = 2450760.5
          T  =  1997 Nov. 20.29529       +/- 0.00050 (m.e.) TT
       Peri. =  210.21864                +/- 0.00021
       Node  =  214.52738                +/- 0.00019   (2000.0)
       Incl. =    4.36165                +/- 0.00002
          q  =    3.0470326              +/- 0.0000008 AU
          e  =    0.3212733              +/- 0.0000002
          a  =    4.4893363              +/- 0.0000004 AU
          n  =    0.10361696             +/- 0.00000001
          P  =    9.512                  +/- 0.0000012  years

* Finding Charts

* 1996 Sept. 4 - 1998 Mar. 18
* 1997 July 21 - 1999 Mar. 13

* Magnitudes Graph

        m1 =   1.4 + 5 log d +  30.0 log r          [    ,-130]  (             - 1997 July 23)
        m1 = -43.9 + 5 log d + 118.5 log r(t - 50)  [-130,  50]  (1997 July 23 - 1998 Jan.  9)
        m1 =  -6.0 + 5 log d +  40.0 log r          [  50,    ]  (1998 Jan.  9 -             )

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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.