55P/Tempel-Tuttle (1998)

Japanese version
Home page
Updated on September 15, 1998

---------------------------------------------------------------------

* Profile

Designation 55P/1997 E1
Recovery Date March 4, 1997
Magnitude 22.5 mag
Recoverer K. J. Meech, O. R. Hainaut and J. Bauer (Mauna Kea)

* Orbital Elements

   The following improved orbital elements by Kenji Muraoka, 
  are from 348 observations 1866 to 1998, including 9 planets, 
  and 5 minor planets perturbations and non-gravitational effect 
  of style II.   The mean residual is +/- 1.08 arc seconds.

      Epoch  =  1998 Mar.  8.0  TT       JDT = 2450880.5
          T  =  1998 Feb. 28.09752       +/- 0.00011 (m.e.) TT
       Peri. =  172.49873                +/- 0.00017
       Node  =  235.25865                +/- 0.00010   (2000.0)
       Incl. =  162.48615                +/- 0.00002
          q  =    0.9765761              +/- 0.0000003 AU
          e  =    0.9055183              +/- 0.0000000
          a  =   10.3361455              +/- 0.0000003 AU
          n  =    0.02965966             +/- 0.00000000
          P  =   33.231                  +/- 0.0000015  years
         A1  =   -0.401                  +/- 0.007
         A2  =   +0.00880                +/- 0.00000

* Finding Charts

* 1997 Sept.29 - 1998 Jan. 27
* 1998 Jan. 27 - 1998 Aug. 25

* Magnitudes Graph

        m1 = 15.0 + 5 log d +  7.0 log r  [    ,-100]  (             - 1997 Nov. 20)
        m1 =  7.5 + 5 log d + 35.0 log r  [-100, -40]  (1997 Nov. 20 - 1998 Jan. 19)
        m1 =  8.5 + 5 log d + 20.0 log r  [ -40,    ]  (1998 Jan. 19 -             )

---------------------------------------------------------------------

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.

---------------------------------------------------------------------

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