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  • MPEC 2004-F89 : COMET C/2004 C1 (LARSEN)

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    M.P.E.C. 2004-F89                                Issued 2004 Mar. 30, 18:17 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 C/2004 C1 (LARSEN)
    
    Observations:
        CK04C010   2004 02 20.60660 10 13 23.72 +10 36 25.5          19.5 T EF089372
        CK04C010   2004 02 25.57882 10 11 19.52 +11 09 21.1          20.0 T EF089372
        CK04C010   2004 02 27.64583 10 10 28.82 +11 22 54.1          20.1 T EF089372
        CK04C010  C2004 03 20.53853 10 02 53.31 +13 33 29.4          19.3 T EF089360
        CK04C010  C2004 03 20.54319 10 02 53.15 +13 33 30.2                 EF089360
        CK04C010  C2004 03 20.54863 10 02 53.08 +13 33 31.6                 EF089360
        CK04C010  C2004 03 26.12287 10 01 34.79 +14 01 24.9          20.7 T EF089691
        CK04C010  C2004 03 26.15471 10 01 34.36 +14 01 34.4          20.5 T EF089691
        CK04C010  C2004 03 26.18788 10 01 33.89 +14 01 43.8          20.4 T EF089691
        CK04C010  C2004 03 26.56706 10 01 29.24 +14 03 29.7          19.7 T EF089360
        CK04C010  C2004 03 26.57272 10 01 29.07 +14 03 31.7                 EF089360
        CK04C010  C2004 03 26.57727 10 01 29.14 +14 03 33.2                 EF089360
    
    Observer details:
    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.
    691 Steward Observatory, Kitt Peak.  Observer A. E. Gleason.  0.9-m f/3
        reflector + CCD.
    
    Orbital elements:
        C/2004 C1 (Larsen)
    T 2003 Mar. 19.3997 TT                                  MPC
    q   4.347328             (2000.0)            P               Q
    n   0.0248351      Peri.  315.9388      -0.3478132      -0.9097198
    a  11.634785       Node   151.9553      +0.9366897      -0.3476122
    e   0.626351       Incl.   28.8408      +0.0404758      +0.2271028
    P  39.7
    From 68 observations 2004 Jan. 23-Mar. 26.
    
    Ephemeris:
        C/2004 C1 (Larsen)
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
    2004 03 26    10 01.60   +14 00.8    4.136    4.959   141.9     7.1        20.6
    2004 04 05    10 00.10   +14 44.0    4.270    4.989   131.4     8.6        20.7
    2004 04 15    09 59.77   +15 17.9    4.424    5.020   121.4     9.8        20.9
    2004 04 25    10 00.65   +15 42.6    4.592    5.051   111.7    10.7        21.0
    2004 05 05    10 02.73   +15 58.2    4.770    5.082   102.3    11.2        21.1
    2004 05 15    10 05.92   +16 05.5    4.954    5.114    93.4    11.4        21.2
    2004 05 25    10 10.13   +16 05.3    5.140    5.146    84.7    11.3        21.3
    2004 06 04    10 15.23   +15 58.4    5.324    5.179    76.4    11.0        21.4
    2004 06 14    10 21.12   +15 45.6    5.503    5.212    68.2    10.4        21.5
    2004 06 24    10 27.67   +15 27.6    5.674    5.246    60.3     9.7        21.5
    2004 07 04    10 34.79   +15 05.3    5.835    5.279    52.6     8.8        21.5
    2004 07 14    10 42.36   +14 39.4    5.983    5.314    45.0     7.8        21.6
    2004 07 24    10 50.29   +14 10.6    6.117    5.348    37.6     6.7        21.6
    
    Brian G. Marsden             (C) Copyright 2004 MPC           M.P.E.C. 2004-F89
    

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