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Minor Planet Center

MPEC 2009-T36 : COMET C/2009 T1 (McNAUGHT)

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M.P.E.C. 2009-T36                                Issued 2009 Oct. 11, 14:21 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/2009 T1 (McNAUGHT)

Observations:
    CK09T010  C2009 10 09.74900 06 11 14.33 -58 50 27.8          17.8 T ET036E12
    CK09T010  C2009 10 09.75763 06 11 14.03 -58 50 30.1          17.8 T ET036E12
    CK09T010  C2009 10 09.76620 06 11 13.66 -58 50 32.0          18.0 T ET036E12
    CK09T010  C2009 10 09.77489 06 11 13.20 -58 50 35.2          18.0 T ET036E12
    CK09T010  C2009 10 10.67280 06 10 32.74 -58 54 58.5          18.9 T ET036474
    CK09T010  C2009 10 10.67413 06 10 32.79 -58 54 58.5          17.7 N ET036D25
    CK09T010  C2009 10 10.67454 06 10 32.66 -58 54 58.9          18.5 T ET036474
    CK09T010  C2009 10 10.67604 06 10 32.56 -58 54 59.6          18.9 T ET036474
    CK09T010  C2009 10 10.67801 06 10 32.47 -58 55 00.3          18.8 T ET036474
    CK09T010  C2009 10 10.67803 06 10 32.58 -58 54 59.8          17.8 N ET036D25
    CK09T010  C2009 10 10.68200 06 10 32.49 -58 55 00.7          17.6 N ET036D25
    CK09T010  C2009 10 10.74441 06 10 29.49 -58 55 19.7          17.7 T ET036E12
    CK09T010  C2009 10 10.75444 06 10 28.97 -58 55 22.8          17.7 T ET036E12
    CK09T010  C2009 10 10.76581 06 10 28.46 -58 55 26.3          17.7 T ET036E12
    CK09T010  C2009 10 10.83610 06 10 24.95 -58 55 45.8                 ET036D25
    CK09T010  C2009 10 10.84573 06 10 23.85 -58 55 53.1                 ET036D25
    CK09T010  C2009 10 11.28336 06 10 04.32 -58 57 58.5          17.5 T ET036I77
    CK09T010  C2009 10 11.29966 06 10 03.69 -58 58 01.3          17.3 T ET036I77
    CK09T010  C2009 10 11.31595 06 10 02.93 -58 58 06.9          16.8 T ET036I77

Observer details:
474 Mount John Observatory, Lake Tekapo.  Observers A. C. Gilmore,
    P. M. Kilmartin.  Measurer P. M. Kilmartin.  1.0-m f/7.7 reflector + CCD.
D25 Tzec Maun Observatory, Pingelly.  Observers K. Dankov, D. Chestnov.
    0.15-m f/7.3 refractor + CCD, 0.18-m f/2.8 reflector + CCD.
E12 Siding Spring Survey.  Observer R. H. McNaught.  0.5-m Uppsala Schmidt
    + CCD.
I77 CEAMIG-REA Observatory, Belo Horizonte.  Observers C. Jacques, E. Pimentel.
    Measurer C. Jacques.  0.30-m f/3.0 reflector + CCD.

Orbital elements:
    C/2009 T1 (McNaught)
T 2010 Mar. 25.069 TT                                   MPC
q   5.56975              (2000.0)            P               Q
                   Peri.  300.574       +0.280940       +0.418664
                   Node    59.778       +0.732213       +0.488212
e   1.0            Incl.   88.081       -0.620432       +0.765748
From 17 observations 2009 Oct. 9-11.

Ephemeris:
    C/2009 T1 (McNaught)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2009 10 06    06 13.82   -58 31.7    5.617    5.706    90.0    10.1  17.8
2009 10 16    06 06.08   -59 20.1    5.567    5.690    92.1    10.1  17.8
2009 10 26    05 55.56   -60 00.2    5.519    5.676    94.0    10.1  17.7
2009 11 05    05 42.40   -60 26.7    5.478    5.662    95.7    10.0  17.7
2009 11 15    05 27.08   -60 34.2    5.443    5.650    97.0    10.0  17.7
2009 11 25    05 10.36   -60 18.2    5.418    5.638    97.8    10.0  17.7
2009 12 05    04 53.34   -59 35.7    5.404    5.627    98.1    10.0  17.7
2009 12 15    04 37.10   -58 26.1    5.402    5.617    97.6    10.0  17.7
2009 12 25    04 22.59   -56 51.0    5.413    5.608    96.4    10.0  17.7

Brian G. Marsden             (C) Copyright 2009 MPC           M.P.E.C. 2009-T36

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