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  • MPEC 2007-R36 : COMET P/2007 R1 (LARSON)

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    M.P.E.C. 2007-R36                                Issued 2007 Sept.  9, 17:00 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 R1 (LARSON)
    
    Observations:
        PK07R010  C2007 09 04.37126 00 10 49.76 +01 49 44.7          18.2 T ER036G96
        PK07R010  C2007 09 04.37887 00 10 49.58 +01 49 42.9          18.5 T ER036G96
        PK07R010  C2007 09 04.38648 00 10 49.36 +01 49 40.6          18.1 T ER036G96
        PK07R010  C2007 09 04.39427 00 10 49.22 +01 49 39.3          18.1 T ER036G96
        PK07R010  C2007 09 08.29450 00 09 16.09 +01 34 17.2          19.2 N ER036734
        PK07R010  C2007 09 08.30163 00 09 15.95 +01 34 15.2          19.4 N ER036734
        PK07R010  C2007 09 08.30403 00 09 15.90 +01 34 14.7          18.4 N ER036H06
        PK07R010  C2007 09 08.30872 00 09 15.75 +01 34 13.0          19.2 N ER036734
        PK07R010  C2007 09 08.32187 00 09 15.45 +01 34 10.3          19.0 N ER036H06
        PK07R010  C2007 09 08.42369 00 09 12.78 +01 33 45.9          17.8 T ER036G96
        PK07R010  C2007 09 08.42457 00 09 12.78 +01 33 45.5          18.0 T ER036G96
        PK07R010  C2007 09 08.42546 00 09 12.75 +01 33 45.6          17.9 T ER036G96
        PK07R010  C2007 09 08.42634 00 09 12.76 +01 33 45.3          18.0 T ER036G96
        PK07R010  C2007 09 08.89480 00 09 01.27 +01 31 50.4                 ER036204
        PK07R010  C2007 09 08.94407 00 09 00.06 +01 31 39.3          18.5 T ER036B33
        PK07R010  C2007 09 08.94932 00 08 59.93 +01 31 37.1          18.7 T ER036B33
        PK07R010  C2007 09 08.97882 00 08 59.27 +01 31 28.6          18.5 N ER036157
        PK07R010  C2007 09 08.99221 00 08 58.77 +01 31 26.9                 ER036204
        PK07R010  C2007 09 09.00571 00 08 58.41 +01 31 22.0          18.6 N ER036B40
        PK07R010  C2007 09 09.02609 00 08 57.82 +01 31 16.8                 ER036B40
        PK07R010  C2007 09 09.02953 00 08 57.87 +01 31 18.4          18.4 T ER036473
        PK07R010  C2007 09 09.03436 00 08 57.26 +01 31 12.4                 ER036B40
        PK07R010  C2007 09 09.06751 00 08 56.84 +01 31 08.2          18.8 N ER036204
        PK07R010  C2007 09 09.07390 00 08 56.54 +01 31 05.3          19.3 T ER036232
        PK07R010  C2007 09 09.07541 00 08 56.68 +01 31 06.2          18.9 T ER036473
        PK07R010  C2007 09 09.11318 00 08 55.70 +01 30 54.5          19.3 T ER036232
        PK07R010  C2007 09 09.11767 00 08 55.62 +01 30 57.4          18.7 N ER036I77
        PK07R010  C2007 09 09.13195 00 08 55.29 +01 30 54.4          18.9 N ER036I77
        PK07R010  C2007 09 09.14504 00 08 54.92 +01 30 52.8          18.9 N ER036I77
        PK07R010  C2007 09 09.15246 00 08 54.75 +01 30 47.2          19.2 R ER036232
        PK07R010  C2007 09 09.24226 00 08 52.62 +01 30 25.8          18.2 T ER036673
        PK07R010  C2007 09 09.25069 00 08 52.38 +01 30 23.8                 ER036673
        PK07R010  C2007 09 09.26262 00 08 52.08 +01 30 20.8                 ER036673
        PK07R010  C2007 09 09.27130 00 08 51.88 +01 30 18.6                 ER036673
        PK07R010  C2007 09 09.28036 00 08 51.60 +01 30 16.5                 ER036734
        PK07R010  C2007 09 09.28395 00 08 51.49 +01 30 15.2                 ER036734
        PK07R010  C2007 09 09.28748 00 08 51.39 +01 30 14.2          19.1 N ER036734
    
    Observer details:
    157 Frasso Sabino.  Observers R. Haver, R. Gorelli.  Measurer R. Haver.
        0.37-m f/5.8 Schmidt-Cassegrain + CCD.
    204 Schiaparelli Observatory.  Observers L. Buzzi, F. Luppi.  Measurer
        L. Buzzi.  0.60-m f/4.64 reflector + CCD.
    232 Masquefa Observatory.  Observer E. Reina.  0.25-m f/3.3 Schmidt-Cassegrain
        + CCD.
    473 Remanzacco.  Observers G. Sostero, E. Guido, V. Gonano.  0.45-m f/4.4
        Newtonian reflector + CCD.
    673 Table Mountain Observatory, Wrightwood.  Observer J. Young.  0.61-m f/16
        Cassegrain + CCD.
    734 Farpoint Observatory.  Observer G. Hug.  0.7-m reflector + CCD.
    B33 Libbiano Observatory, Peccioli.  Observers P. Bacci, P. Piludu, R. Enzo,
        R. Emilio.  Measurer P. Bacci.  0.5-m f/10 Ritchey-Chretien + CCD.
    B40 Skylive Observatory, Catania.  Observer F. Tozzi.  0.41-m f/10
        Schmidt-Cassegrain + CCD.
    G96 Mt. Lemmon Survey.  Observers S. M. Larson, R. A. Kowalski.  Measurers
        E. C. Beshore, A. Boattini, A. R. Gibbs, A. D. Grauer, R. E. Hill,
        R. A. Kowalski, S. M. Larson.  1.5-m reflector + CCD.
    H06 RAS Observatory, Mayhill.  Observers E. Guido, G. Sostero.  0.25-m f/3.4
        reflector + CCD.
    I77 CEAMIG-REA Observatory, Belo Horizonte.  Observers C. Jacques, E. Pimentel.
        Measurer C. Jacques.  0.30-m f/3.0 Schmidt-Cassegrain + CCD.
    
    Orbital elements:
        P/2007 R1 (Larson)
    T 2009 Feb. 22.484 TT                                   MPC
    q   3.77499              (2000.0)            P               Q
    n   0.062381       Peri.  249.888       +0.320141       -0.947360
    a   6.29652        Node   181.461       +0.920021       +0.311980
    e   0.40046        Incl.    9.725       +0.225989       +0.071951
    P  15.8
    From 33 observations 2007 Sept. 4-9.
    
    Ephemeris:
        P/2007 R1 (Larson)
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
    2007 09 07    00 09.80   +01 39.5    3.753    4.718   161.0     4.0  17.6
    2007 09 17    00 05.48   +00 57.5    3.692    4.689   172.0     1.7  17.5
    2007 09 27    00 00.83   +00 12.7    3.660    4.661   176.9     0.7  17.5
    2007 10 07    23 56.23   -00 31.9    3.658    4.633   165.7     3.1  17.5
    2007 10 17    23 52.07   -01 13.5    3.685    4.605   154.6     5.3  17.5
    2007 10 27    23 48.72   -01 49.4    3.739    4.577   143.6     7.4  17.5
    
    Brian G. Marsden             (C) Copyright 2007 MPC           M.P.E.C. 2007-R36
    

    Read MPEC 2007-R35 Read MPEC 2007-R37


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