MPEC 2010-K53 : COMET P/2010 J5 (McNAUGHT)

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M.P.E.C. 2010-K53                                Issued 2010 May 24, 16:38 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.minorplanetcenter.org/iau/mpc.html  ISSN 1523-6714

                          COMET P/2010 J5 (McNAUGHT)

Observations:
    PK10J050  C2010 05 17.69186 16 14 39.49 -20 46 44.8          18.2 T EK053349
    PK10J050  C2010 05 17.70078 16 14 39.07 -20 46 45.1                 EK053349
    PK10J050  C2010 05 17.70459 16 14 38.95 -20 46 40.2          17.5 N EK053D96
    PK10J050  C2010 05 17.72636 16 14 38.04 -20 46 39.8                 EK053D96
    PK10J050  C2010 05 18.94932 16 13 47.73 -20 46 23.0          18.4 N EK053J75
    PK10J050  C2010 05 18.96363 16 13 47.13 -20 46 22.2          18.2 N EK053J75
    PK10J050  C2010 05 18.97794 16 13 46.54 -20 46 21.7          18.6 N EK053J75
    PK10J050  C2010 05 20.38604 16 12 47.78 -20 45 56.0          18.3 N EK053H10
    PK10J050  C2010 05 20.38932 16 12 47.71 -20 45 56.2          19.2 N EK053H10
    PK10J050  C2010 05 20.39269 16 12 47.53 -20 45 56.9          18.7 N EK053H10
    PK10J050  C2010 05 20.39598 16 12 47.37 -20 45 56.4          19.3 N EK053H10
    PK10J050  C2010 05 20.98437 16 12 22.90 -20 45 45.1                 EK053941
    PK10J050  C2010 05 20.98883 16 12 22.73 -20 45 45.3                 EK053941
    PK10J050  C2010 05 20.99403 16 12 22.51 -20 45 45.3                 EK053941
    PK10J050  C2010 05 21.62160 16 11 56.19 -20 45 29.8          18.4 T EK053E12
    PK10J050  C2010 05 21.62476 16 11 56.05 -20 45 29.3          18.3 T EK053E12
    PK10J050  C2010 05 22.70016 16 11 10.82 -20 45 07.3          18.2 T EK053E12
    PK10J050  C2010 05 22.96823 16 10 59.63 -20 45 04.7          18.3 N EK053B33
    PK10J050  C2010 05 22.97097 16 10 59.45 -20 45 06.3          18.3 N EK053B33
    PK10J050  C2010 05 22.97394 16 10 59.34 -20 45 06.2          18.5 N EK053B33
    PK10J050  C2010 05 24.41235 16 09 58.55 -20 44 33.5                 EK053H06
    PK10J050  C2010 05 24.41698 16 09 58.33 -20 44 33.6                 EK053H06
    PK10J050  C2010 05 24.42160 16 09 58.09 -20 44 33.9          18.6 T EK053H06

Observer details:
349 Ageo.  Observer K. Kadota.  0.25-m f/5.0 reflector + CCD.
941 Observatorio Pla D'Arguines.  Observers R. Ferrando, M. Ferrando.
    Measurer R. Ferrando.  0.40-m f/10 Ritchey-Chretien + CCD.
B33 Libbiano Observatory, Peccioli.  Observers P. Bacci, R. Emilio.  Measurer
    P. Bacci.  0.5-m f/8 Ritchey-Chretien + CCD.
D96 Tzec Maun Observatory, Moorook.  Observers L. Buzzi, P. Concari, S. Foglia,
    G. Galli, M. Tombelli.  0.18-m f/2.8 Newtonian reflector + CCD.
E12 Siding Spring Survey.  Observer R. H. McNaught.  0.5-m Uppsala Schmidt
    + CCD.
H06 RAS Observatory, Mayhill.  Observer H. Sato.  0.25-m f/3.4 reflector + CCD.
H10 Tzec Maun Observatory, Mayhill.  Observer L. Elenin.  0.36-m f/3.8
    Maksutov-Newtonian + CCD.
J75 OAM Observatory, La Sagra.  Observers S. Sanchez, J. Nomen, R. Stoss,
    M. Hurtado, W. K. Y. Yeung, J. Rodriguez.  0.45-m f/2.8 reflector + CCD.

Orbital elements:
    P/2010 J5 (McNaught)
T 2009 Dec. 22.054 TT                                   MPC
q   3.74912              (2000.0)            P               Q
n   0.118386       Peri.  156.717       -0.735654       +0.667401
a   4.10773        Node    65.674       -0.639721       -0.628415
e   0.08730        Incl.    7.296       -0.222643       -0.399588
P   8.33
From 52 observations 2010 May 12-24.

Ephemeris:
    P/2010 J5 (McNaught)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2010 05 24    16 10.27   -20 44.7    2.758    3.770   178.1     0.5  18.0
2010 06 03    16 03.30   -20 40.7    2.769    3.773   170.7     2.5  18.0
2010 06 13    15 56.83   -20 37.0    2.808    3.776   159.6     5.4  18.0
2010 06 23    15 51.43   -20 34.9    2.873    3.779   148.8     8.0  18.1
2010 07 03    15 47.48   -20 35.8    2.962    3.783   138.4    10.3  18.1
2010 07 13    15 45.24   -20 40.8    3.070    3.786   128.4    12.2  18.2
2010 07 23    15 44.81   -20 50.3    3.195    3.790   118.7    13.6  18.3

     Further observations of this comet are desirable.

Brian G. Marsden             (C) Copyright 2010 MPC           M.P.E.C. 2010-K53

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