MPEC 2007-P23 : COMET C/2007 P1 (McNAUGHT)

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M.P.E.C. 2007-P23                                Issued 2007 Aug.  9, 20:35 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/2007 P1 (McNAUGHT)

Observations:
    CK07P010  C2007 08 07.72005 01 59 58.59 -31 40 36.8          18.7 T EP023E12
    CK07P010  C2007 08 07.73165 01 59 57.69 -31 41 03.4          19.7 T EP023E12
    CK07P010  C2007 08 07.74334 01 59 56.79 -31 41 34.4          18.0 T EP023E12
    CK07P010  C2007 08 07.75589 01 59 55.96 -31 42 05.4          19.7 T EP023E12
    CK07P010  C2007 08 08.66104 01 58 47.39 -32 17 47.7                 EP023E12
    CK07P010  C2007 08 08.67512 01 58 46.32 -32 18 17.1          18.0 T EP023E12
    CK07P010  C2007 08 08.68934 01 58 45.29 -32 18 48.4          18.2 T EP023E12
    CK07P010  C2007 08 08.70338 01 58 44.11 -32 19 27.2          18.8 T EP023E12
    CK07P010  C2007 08 08.75479 01 58 39.85 -32 21 22.9          18.2 T EP023E12
    CK07P010  C2007 08 08.75556 01 58 39.97 -32 21 26.9          18.1 T EP023E12
    CK07P010  C2007 08 08.75634 01 58 39.92 -32 21 27.2          18.2 T EP023E12
    CK07P010  C2007 08 08.75711 01 58 39.86 -32 21 28.9          18.6 T EP023E12
    CK07P010  C2007 08 09.68900 01 57 26.46 -32 58 07.7                 EP023E12
    CK07P010  C2007 08 09.69648 01 57 25.84 -32 58 26.0                 EP023E12
    CK07P010  C2007 08 09.73471 01 57 22.56 -32 59 57.3          18.4 T EP023428
    CK07P010  C2007 08 09.74209 01 57 21.95 -33 00 15.1          19.5 N EP023428

Observer details:
428 Reedy Creek.  Observer J. Broughton.  0.51-m f/2.7 reflector + CCD.
E12 Siding Spring Survey.  Observers R. H. McNaught, G. J. Garradd.
    0.5-m Uppsala Schmidt + CCD.

Orbital elements:
    C/2007 P1 (McNaught)
T 2007 Mar. 26.439 TT                                   MPC
q   0.63318              (2000.0)            P               Q
                   Peri.   97.689       +0.029624       +0.986938
                   Node   190.879       +0.178246       +0.150666
e   1.0            Incl.  122.963       +0.983540       -0.057032
From 12 observations 2007 Aug. 7-9.

Ephemeris:
    C/2007 P1 (McNaught)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2007 08 08    01 59.63   -31 51.6    1.826    2.413   113.2    22.7  18.1
2007 08 18    01 44.40   -38 17.9    1.858    2.547   122.3    19.6  18.4
2007 08 28    01 23.60   -44 06.9    1.930    2.678   128.5    17.2  18.7
2007 09 07    00 57.79   -48 50.6    2.042    2.807   130.8    15.8  19.0
2007 09 17    00 28.85   -52 11.9    2.193    2.933   129.2    15.4  19.4
2007 09 27    23 59.88   -54 09.6    2.378    3.058   124.4    15.7  19.7

Brian G. Marsden             (C) Copyright 2007 MPC           M.P.E.C. 2007-P23

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