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Minor Planet Center

MPEC 2009-R48 : COMET C/2009 R1 (McNAUGHT)

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M.P.E.C. 2009-R48                                Issued 2009 Sept. 12, 15:04 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 R1 (McNAUGHT)

Observations:
    CK09R010  C2009 09 10.61053 21 18 20.56 -33 47 05.2          16.7 T ER048D90
    CK09R010  C2009 09 10.61630 21 18 20.17 -33 47 04.9          17.4 N ER048D90
    CK09R010  C2009 09 10.63912 21 18 18.57 -33 47 03.5          17.6 T ER048E12
    CK09R010  C2009 09 10.64261 21 18 18.34 -33 47 03.4          17.5 T ER048E12
    CK09R010  C2009 09 11.90886 21 16 52.31 -33 45 48.3          17.2 N ER048213
    CK09R010  C2009 09 11.92031 21 16 51.55 -33 45 47.6          17.0 N ER048213
    CK09R010  C2009 09 12.00338 21 16 46.05 -33 45 41.0                 ER048I21
    CK09R010  C2009 09 12.06018 21 16 42.14 -33 45 36.8          17.0 N ER048I21

Observer details:
213 Observatorio Montcabre.  Observer R. Naves.  Measurer M. Campas.  0.30-m
    f/10 Schmidt-Cassegrain + CCD.
D90 RAS Observatory, Moorook.  Observer H. Sato.  0.30-m f/9.5
    Ritchey-Chretien + CCD.
E12 Siding Spring Survey.  Observer R. H. McNaught.  0.5-m Uppsala Schmidt
    + CCD.
I21 El Condor Observatory, Cordoba.  Observer W. Robledo.  Measurer
    C. Montivero.  0.20-m f/3.9 Schmidt-Cassegrain + CCD.

Orbital elements:
    C/2009 R1 (McNaught)
T 2010 July 2.1654 TT                                   MPC
q   0.401424             (2000.0)            P               Q
                   Peri.  130.8635      -0.4152440      -0.6929681
                   Node   322.7260      +0.1978227      +0.5635880
e   1.0            Incl.   76.6981      +0.8879406      -0.4496262
From 43 observations 2009 July 20-Sept. 12.

Ephemeris:
    C/2009 R1 (McNaught)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2009 09 06    21 23.70   -33 49.7    3.693    4.554   144.9     7.3  17.4
2009 09 16    21 12.36   -33 40.0    3.681    4.445   134.6     9.3  17.3
2009 09 26    21 02.35   -33 15.7    3.694    4.334   123.9    11.1  17.2
2009 10 06    20 54.14   -32 38.8    3.727    4.222   113.3    12.6  17.1
2009 10 16    20 47.97   -31 51.7    3.772    4.109   102.8    13.7  17.0
2009 10 26    20 43.97   -30 56.7    3.825    3.994    92.5    14.4  16.9
2009 11 05    20 42.08   -29 55.6    3.879    3.878    82.6    14.7  16.8
2009 11 15    20 42.17   -28 50.1    3.928    3.760    73.0    14.6  16.7
2009 11 25    20 44.06   -27 40.8    3.969    3.641    63.7    14.1  16.6

Brian G. Marsden             (C) Copyright 2009 MPC           M.P.E.C. 2009-R48

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