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IAU Minor Planet Center

Minor Planet Center

MPEC 2007-S54 : COMET P/2007 R3 (GIBBS)

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M.P.E.C. 2007-S54                                Issued 2007 Sept. 25, 15:44 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 P/2007 R3 (GIBBS)

Observations:
    PK07R030  C2007 09 19.23282 00 39 03.57 +01 15 17.4          19.6 T ES054704
    PK07R030  C2007 09 19.24477 00 39 03.24 +01 15 11.9          19.7 T ES054704
    PK07R030  C2007 09 19.25674 00 39 02.79 +01 15 12.0          20.0 T ES054704
    PK07R030  C2007 09 19.28068 00 39 01.83 +01 15 08.5          19.9 T ES054704
    PK07R030  C2007 09 19.34743 00 38 59.22 +01 14 57.8          19.2 T ES054691
    PK07R030  C2007 09 19.36499 00 38 58.59 +01 14 56.1          19.1 T ES054691
    PK07R030  C2007 09 19.38255 00 38 57.98 +01 14 53.4          19.2 T ES054691
    PK07R030  C2007 09 19.99764 00 38 35.47 +01 13 26.5          19.1 N ES054204
    PK07R030  C2007 09 20.12320 00 38 30.62 +01 13 09.0                 ES054204
    PK07R030  C2007 09 20.66043 00 38 10.76 +01 11 53.9                 ES054349
    PK07R030  C2007 09 20.66766 00 38 10.47 +01 11 52.4                 ES054349
    PK07R030  C2007 09 20.67491 00 38 10.20 +01 11 51.8          18.1 T ES054349
    PK07R030  C2007 09 20.85438 00 38 03.89 +01 11 25.2          19.5 T ES054215

Observer details:
204 Schiaparelli Observatory.  Observers L. Buzzi, F. Luppi.  Measurer
    L. Buzzi.  0.60-m f/4.64 reflector + CCD.
215 Buchloe.  Observer W. Hasubick.  0.44-m f/4.6 reflector + CCD.
349 Ageo.  Observer K. Kadota.  0.25-m f/5.0 reflector + CCD.
691 Steward Observatory, Kitt Peak.  Observer R. S. McMillan.  0.9-m f/3
    reflector + CCD.
704 Lincoln Laboratory ETS, New Mexico.  Observers M. Bezpalko, D. Torres,
    R. Kracke, G. Spitz, J. Kistler.  Measurers J. Stuart, S. Scruggs.  1.0-m
    f/2.15 reflector + CCD.

Orbital elements:
    P/2007 R3 (Gibbs)
T 2007 June 7.569 TT                                    MPC
q   2.23394              (2000.0)            P               Q
n   0.096776       Peri.  294.367       +0.844132       +0.535243
a   4.69848        Node    33.297       -0.469218       +0.765454
e   0.52454        Incl.    3.230       -0.259377       +0.357204
P  10.2
From 65 observations 2007 Sept. 14-20.

Ephemeris:
    P/2007 R3 (Gibbs)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2007 09 17    00 40.39   +01 20.4    1.404    2.385   163.6     6.8  18.0
2007 09 27    00 34.12   +00 56.8    1.415    2.415   174.6     2.2  18.1
2007 10 07    00 27.65   +00 34.4    1.451    2.446   173.0     2.9  18.2
2007 10 17    00 21.97   +00 18.4    1.513    2.480   161.9     7.2  18.3
2007 10 27    00 17.91   +00 13.0    1.598    2.515   151.1    11.0  18.5
2007 11 06    00 15.93   +00 20.3    1.706    2.552   140.7    14.2  18.7
2007 11 16    00 16.24   +00 40.8    1.833    2.590   130.9    16.8  18.9
2007 11 26    00 18.79   +01 13.9    1.975    2.630   121.6    18.6  19.2

     Further observations of this comet are desirable.

Brian G. Marsden             (C) Copyright 2007 MPC           M.P.E.C. 2007-S54

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