• MPC Preparation (Info)

  • MPEC 2004-J12 : COMET P/2004 H2 (LARSEN)

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    M.P.E.C. 2004-J12                                Issued 2004 May 1, 18:52 UT
    
         The Minor Planet Electronic Circulars contain information on unusual
             minor planets and routine data on comets.  They are published
       on behalf of Commission 20 of the International Astronomical Union by the
              Minor Planet Center, Smithsonian Astrophysical Observatory,
                              Cambridge, MA 02138, U.S.A.
    
             Supported in part by the Steven and Michele Kirsch Foundation
                 Prepared using the Tamkin Foundation Computer Network
    
                                  MPC@CFA.HARVARD.EDU
              URL http://cfa-www.harvard.edu/iau/mpc.html  ISSN 1523-6714
    
                               COMET P/2004 H2 (LARSEN)
    
    Observations:
        PK04H020   2004 04 25.70243 16 14 13.56 -02 58 19.1          19.0 T EJ012372
        PK04H020  C2004 04 28.69365 16 13 09.81 -02 47 59.2          18.6 T EJ012360
        PK04H020  C2004 04 28.69758 16 13 09.67 -02 47 58.1                 EJ012360
        PK04H020  C2004 04 30.06029 16 12 37.24 -02 43 34.8                 EJ012118
        PK04H020  C2004 04 30.08247 16 12 36.77 -02 43 29.4                 EJ012118
    
    Observer details:
    118 Modra.  Observers S. Gajdos, J. Vilagi.  0.6-m f/5.5 reflector + CCD.
    360 Kuma Kogen.  Observer A. Nakamura.  0.60-m f/5.8 Ritchey-Chretien + CCD.
    372 Geisei.  Observer T. Seki.  0.60-m f/3.5 reflector.
    
    Orbital elements:
        P/2004 H2 (Larsen)
    T 2004 May 17.490 TT                                    MPC
    q   2.62670              (2000.0)            P               Q
    n   0.102961       Peri.  106.501       -0.515826       +0.842804
    a   4.50840        Node   131.421       -0.843199       -0.467764
    e   0.41738        Incl.   11.823       -0.151455       -0.266229
    P   9.57
    From 34 observations 2004 Apr. 19-30.
    
    Ephemeris:
        P/2004 H2 (Larsen)
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
    2004 04 25    16 14.45   -03 00.8    1.724    2.631   147.9    11.7  18.9
    2004 05 05    16 10.40   -02 29.1    1.676    2.628   155.7     9.1  18.8
    2004 05 15    16 04.91   -02 09.7    1.650    2.627   161.0     7.2  18.8
    2004 05 25    15 58.75   -02 06.2    1.649    2.627   161.0     7.2  18.8
    2004 06 04    15 52.82   -02 20.8    1.671    2.629   155.7     9.1  18.8
    2004 06 14    15 47.93   -02 53.2    1.717    2.633   147.9    11.8  18.9
    2004 06 24    15 44.72   -03 42.0    1.784    2.639   139.3    14.5  19.0
    
    Brian G. Marsden             (C) Copyright 2004 MPC           M.P.E.C. 2004-J12
    

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