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  • MPEC 2007-K51 : COMET C/2007 K1 (LEMMON)

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    M.P.E.C. 2007-K51                                Issued 2007 May 25, 20:38 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.
    
                 Prepared using the Tamkin Foundation Computer Network
    
                                  MPC@CFA.HARVARD.EDU
              URL http://www.cfa.harvard.edu/iau/mpc.html  ISSN 1523-6714
    
                               COMET C/2007 K1 (LEMMON)
    
    Observations:
        CK07K010  C2007 05 18.44419 18 23 52.40 +29 28 54.7          20.4 N EK051G96
        CK07K010  C2007 05 18.44646 18 23 52.33 +29 28 55.5          20.2 N EK051G96
        CK07K010  C2007 05 18.44874 18 23 52.26 +29 28 56.5          20.5 N EK051G96
        CK07K010  C2007 05 18.45101 18 23 52.18 +29 28 57.3          20.5 N EK051G96
        CK07K010  C2007 05 18.92912 18 23 37.53 +29 31 46.8          20.2 N EK051A17
        CK07K010  C2007 05 18.94514 18 23 37.17 +29 31 54.2          20.6 N EK051A17
        CK07K010  C2007 05 18.95020 18 23 36.97 +29 31 57.4          20.8 N EK051595
        CK07K010  C2007 05 18.95387 18 23 36.84 +29 31 57.9          20.5 N EK051A74
        CK07K010  C2007 05 18.96111 18 23 36.60 +29 32 00.3          20.0 N EK051A17
        CK07K010  C2007 05 18.96113 18 23 36.60 +29 32 00.5          20.5 N EK051A74
        CK07K010  C2007 05 18.96840 18 23 36.41 +29 32 03.2          20.2 N EK051A74
        CK07K010  C2007 05 19.02398 18 23 34.67 +29 32 22.9          20.5 N EK051595
        CK07K010  C2007 05 19.25469 18 23 27.67 +29 33 44.5          20.4 N EK051649
        CK07K010  C2007 05 19.27459 18 23 26.85 +29 33 52.8          20.5 N EK051649
        CK07K010  C2007 05 19.28119 18 23 26.76 +29 33 55.1          20.4 N EK051H55
        CK07K010  C2007 05 19.28505 18 23 26.52 +29 33 56.6          20.5 N EK051H55
        CK07K010  C2007 05 19.28989 18 23 26.41 +29 33 58.3          20.4 N EK051H55
        CK07K010  C2007 05 19.29373 18 23 26.29 +29 33 59.9          20.6 N EK051H55
        CK07K010  C2007 05 19.33484 18 23 25.03 +29 34 13.3          20.6 N EK051734
        CK07K010  C2007 05 19.33777 18 23 24.93 +29 34 14.6                 EK051734
        CK07K010  C2007 05 19.34481 18 23 24.82 +29 34 18.9                 EK051703
        CK07K010  C2007 05 19.34576 18 23 24.71 +29 34 17.8          20.3 N EK051734
        CK07K010  C2007 05 19.34868 18 23 24.62 +29 34 18.8                 EK051734
        CK07K010  C2007 05 19.35153 18 23 24.52 +29 34 19.8          20.3 N EK051734
        CK07K010  C2007 05 19.35565 18 23 24.38 +29 34 22.2                 EK051703
        CK07K010  C2007 05 19.45714 18 23 21.19 +29 34 57.4                 EK051291
        CK07K010  C2007 05 19.46123 18 23 21.16 +29 34 59.0          20.6 N EK051673
        CK07K010  C2007 05 19.46536 18 23 20.96 +29 35 00.0                 EK051291
        CK07K010  C2007 05 19.46678 18 23 20.91 +29 35 01.7                 EK051673
        CK07K010  C2007 05 19.47303 18 23 20.68 +29 35 03.9                 EK051673
        CK07K010  C2007 05 19.47338 18 23 20.72 +29 35 03.5                 EK051291
        CK07K010  C2007 05 19.47731 18 23 20.56 +29 35 05.3                 EK051673
        CK07K010  C2007 05 19.97365 18 23 05.32 +29 38 02.4                 EK051246
        CK07K010  C2007 05 19.97444 18 23 05.21 +29 38 01.0                 EK051246
        CK07K010  C2007 05 20.06097 18 23 02.47 +29 38 31.4                 EK051J95
        CK07K010  C2007 05 20.06669 18 23 02.30 +29 38 33.3                 EK051J95
        CK07K010  C2007 05 20.06913 18 23 02.18 +29 38 32.8          20.4 T EK051473
        CK07K010  C2007 05 20.07221 18 23 02.06 +29 38 35.4          20.6 N EK051J95
        CK07K010  C2007 05 20.93625 18 22 34.97 +29 43 39.2          20.2 T EK051473
        CK07K010  C2007 05 20.93718 18 22 34.87 +29 43 38.3          20.4 T EK051473
        CK07K010  C2007 05 20.94560 18 22 34.64 +29 43 42.2          20.5 T EK051473
        CK07K010  C2007 05 21.24919 18 22 25.09 +29 45 28.2          20.5 N EK051673
        CK07K010  C2007 05 21.26238 18 22 24.66 +29 45 33.5                 EK051673
        CK07K010  C2007 05 21.27326 18 22 24.29 +29 45 36.9                 EK051673
        CK07K010  C2007 05 21.27859 18 22 24.17 +29 45 37.8                 EK051673
        CK07K010  C2007 05 21.44951 18 22 18.62 +29 46 37.9                 EK051291
        CK07K010  C2007 05 21.45742 18 22 18.35 +29 46 40.6                 EK051291
        CK07K010  C2007 05 21.46531 18 22 18.07 +29 46 44.2                 EK051291
        CK07K010  C2007 05 21.97484 18 22 01.97 +29 49 39.5          20.5 N EK051A44
        CK07K010  C2007 05 21.99187 18 22 01.42 +29 49 45.2          20.3 N EK051A44
        CK07K010  C2007 05 22.01315 18 22 00.72 +29 49 52.6          20.7 N EK051A44
        CK07K010  C2007 05 22.42714 18 21 47.37 +29 52 14.8          20.7 N EK051G96
        CK07K010  C2007 05 22.43427 18 21 47.16 +29 52 17.6          20.6 N EK051G96
        CK07K010  C2007 05 22.44160 18 21 46.90 +29 52 20.0          20.7 N EK051G96
        CK07K010  C2007 05 22.44877 18 21 46.69 +29 52 22.3          20.7 N EK051G96
        CK07K010  C2007 05 23.28235 18 21 19.74 +29 57 05.9          20.7 N EK051H55
        CK07K010  C2007 05 23.28716 18 21 19.61 +29 57 07.6          20.7 N EK051H55
        CK07K010  C2007 05 23.29195 18 21 19.40 +29 57 08.7          20.9 N EK051H55
        CK07K010  C2007 05 23.42868 18 21 14.94 +29 57 55.6          20.4 N EK051G96
        CK07K010  C2007 05 23.43410 18 21 14.72 +29 57 57.3          20.5 N EK051G96
        CK07K010  C2007 05 23.43915 18 21 14.58 +29 57 59.0          20.8 N EK051G96
        CK07K010  C2007 05 23.44416 18 21 14.40 +29 58 00.8          20.7 N EK051G96
        CK07K010  C2007 05 24.02013 18 20 55.62 +30 01 14.1          20.6 N EK051473
        CK07K010  C2007 05 24.02756 18 20 55.31 +30 01 16.3          20.8 N EK051473
        CK07K010  C2007 05 24.27243 18 20 47.34 +30 02 38.7          20.6 N EK051H55
        CK07K010  C2007 05 24.28042 18 20 47.07 +30 02 41.5          20.6 N EK051H55
        CK07K010  C2007 05 24.28846 18 20 46.77 +30 02 44.3          20.8 N EK051H55
        CK07K010  C2007 05 24.29745 18 20 46.52 +30 02 47.4                 EK051658
        CK07K010  C2007 05 24.30036 18 20 46.42 +30 02 48.3                 EK051658
        CK07K010  C2007 05 24.30439 18 20 46.29 +30 02 49.7                 EK051658
        CK07K010  C2007 05 24.30844 18 20 46.15 +30 02 51.0                 EK051658
        CK07K010  C2007 05 24.31118 18 20 46.07 +30 02 52.0                 EK051658
        CK07K010  C2007 05 24.31778 18 20 45.80 +30 02 53.8                 EK051291
        CK07K010  C2007 05 24.32587 18 20 45.49 +30 02 56.5                 EK051291
        CK07K010  C2007 05 24.33385 18 20 45.26 +30 02 59.2                 EK051291
        CK07K010  C2007 05 24.94282 18 20 25.15 +30 06 21.9                 EK051J95
        CK07K010  C2007 05 24.95505 18 20 24.77 +30 06 25.1          20.4 N EK051J95
        CK07K010  C2007 05 25.25945 18 20 14.63 +30 08 05.4                 EK051291
        CK07K010  C2007 05 25.26745 18 20 14.35 +30 08 08.0                 EK051291
        CK07K010  C2007 05 25.27756 18 20 14.07 +30 08 12.1                 EK051658
        CK07K010  C2007 05 25.28055 18 20 13.97 +30 08 13.0                 EK051658
        CK07K010  C2007 05 25.28799 18 20 13.73 +30 08 15.6                 EK051658
        CK07K010  C2007 05 25.29668 18 20 13.45 +30 08 18.4                 EK051658
        CK07K010  C2007 05 25.30537 18 20 13.20 +30 08 21.3                 EK051658
    
    Observer details:
    246 Klet Observatory-KLENOT.  Observers M. Tichy, J. Ticha.  Measurer M. Tichy.
        1.06-m KLENOT Telescope + CCD.
    291 LPL/Spacewatch II.  Observers M. T. Read, R. S. McMillan, T. H. Bressi.
        1.8-m f/2.7 reflector + CCD.
    473 Remanzacco.  Observers L. Donato, V. Gonano, E. Guido, A. Lepardo,
        V. Santini, G. Sostero, M. Gonano.  0.45-m f/4.4 Newtonian reflector + CCD.
    595 Farra d'Isonzo.  Observers E. Pettarin, F. Fabris, G. Lombardi, F. Piani.
        Measurers F. Fabris, E. Pettarin.  0.40-m f/4.5 reflector + CCD.
    649 Powell Observatory, Louisburg.  Observers R. Fredrick, R. Trentman.
        0.75-m Newtonian reflector + CCD.
    658 National Research Council of Canada.  Observer R. M. Robb.  Measurer
        D. D. Balam.  1.82-m Plaskett telescope + CCD.
    673 Table Mountain Observatory, Wrightwood.  Observer J. Young.  0.61-m f/16
        Cassegrain + CCD.
    703 Catalina Sky Survey.  Observer A. R. Gibbs.  Measurers E. C. Beshore,
        A. R. Gibbs, A. D. Grauer, R. E. Hill, R. A. Kowalski, S. M. Larson.
        0.68-m Schmidt + CCD.
    734 Farpoint Observatory.  Observer G. Hug.  0.7-m reflector + CCD.
    A17 Guidestar Observatory, Weinheim.  Observers M. Emmerich, S. Melchert.
        0.36-m f/6 Schmidt-Cassegrain + CCD.
    A44 Altschwendt.  Observer W. Ries.  0.45-m f/3.6 reflector + CCD.
    A74 Bergen-Enkheim Observatory.  Observer U. Suessenberger.  0.36-m f/4.6
        Schmidt-Cassegrain + CCD.
    G96 Mt. Lemmon Survey.  Observer S. M. Larson.  Measurers E. C. Beshore,
        A. R. Gibbs, A. D. Grauer, R. E. Hill, R. A. Kowalski, S. M. Larson.
        1.5-m reflector + CCD.
    H55 Astronomical Research Observatory, Charleston.  Observer R. Holmes.
        0.61-m f/4.0 astrograph + CCD, 0.81-m f/4.0 astrograph + CCD.
    J95 Great Shefford.  Observer P. Birtwhistle.  0.40-m f/6.0 Schmidt-Cassegrain
        + CCD.
    
    Orbital elements:
        C/2007 K1 (Lemmon)
    T 2007 Mar. 31.686 TT                                   MPC
    q   9.24693              (2000.0)            P               Q
                       Peri.   50.142       +0.046953       -0.504520
                       Node   294.669       -0.916959       +0.320566
    e   1.0            Incl.  108.430       +0.396209       +0.801684
    From 84 observations 2007 May 18-25.
    
    Ephemeris:
        C/2007 K1 (Lemmon)
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
    2007 05 20    18 23.07   +29 38.2    8.739    9.251   117.6     5.6  20.4
    2007 05 30    18 17.55   +30 33.1    8.686    9.253   121.3     5.4  20.4
    2007 06 09    18 11.48   +31 19.3    8.655    9.255   123.6     5.2  20.4
    2007 06 19    18 05.07   +31 55.6    8.644    9.258   124.5     5.2  20.3
    2007 06 29    17 58.52   +32 21.3    8.655    9.261   123.9     5.2  20.4
    2007 07 09    17 52.07   +32 36.4    8.687    9.264   121.8     5.4  20.4
    2007 07 19    17 45.93   +32 41.2    8.739    9.268   118.5     5.5  20.4
    2007 07 29    17 40.31   +32 36.8    8.808    9.272   114.3     5.7  20.4
    
    Brian G. Marsden             (C) Copyright 2007 MPC           M.P.E.C. 2007-K51
    

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