MPEC 2007-Y56 : COMET C/2007 W1 (BOATTINI)

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M.P.E.C. 2007-Y56                                Issued 2007 Dec. 31, 02:56 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 W1 (BOATTINI)

Observations:
    CK07W010  C2007 12 27.50418 12 19 40.36 -04 30 10.2          17.6 N EY056H06
    CK07W010  C2007 12 27.50758 12 19 40.49 -04 30 11.5          17.0 N EY056H06
    CK07W010  C2007 12 28.23015 12 20 16.16 -04 35 52.9          16.6 N EY056213
    CK07W010  C2007 12 28.24012 12 20 16.64 -04 35 57.7          16.6 N EY056213
    CK07W010  C2007 12 28.25152 12 20 17.19 -04 36 03.2          16.6 N EY056213
    CK07W010  C2007 12 28.68023 12 20 38.40 -04 39 21.8          17.4 T EY056423
    CK07W010  C2007 12 28.69377 12 20 39.09 -04 39 28.4          17.4 T EY056423
    CK07W010  C2007 12 29.71486 12 21 29.10 -04 47 31.5          18.2 N EY056415
    CK07W010  C2007 12 29.71698 12 21 29.16 -04 47 32.0          18.4 N EY056415
    CK07W010  C2007 12 29.71804 12 21 29.19 -04 47 32.7          18.2 N EY056415
    CK07W010  C2007 12 29.72122 12 21 29.32 -04 47 35.6          18.4 N EY056415

Observer details:
213 Observatorio Montcabre.  Observer R. Naves.  Measurer M. Campas.  0.30-m
    f/6 Schmidt-Cassegrain + CCD.
415 Kambah, near Canberra.  Observer D. Herald.  0.36-m f/3.9
    Schmidt-Cassegrain + CCD.
423 North Ryde.  Observer S. G. McAndrew.  0.20-m f/4 hyperbolic astrograph
    + CCD.
H06 RAS Observatory, Mayhill.  Observer M. Suzuki.  0.25-m f/3.4 reflector
    + CCD.

Orbital elements:
    C/2007 W1 (Boattini)
T 2008 June 24.8897 TT                                  MPC
q   0.849593             (2000.0)            P               Q
                   Peri.  306.5564      +0.1974010      +0.9775372
                   Node   334.5289      -0.8356111      +0.1283907
e   1.0            Incl.    9.8880      -0.5126275      +0.1671432
From 82 observations 2007 Nov. 20-Dec. 29.

Ephemeris:
    C/2007 W1 (Boattini)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2007 12 26    12 18.42   -04 18.3    2.785    2.917    87.8    19.7  16.4
2008 01 05    12 26.43   -05 37.1    2.524    2.797    95.6    20.5  16.0
2008 01 15    12 33.61   -06 55.9    2.266    2.674   103.6    20.9  15.5
2008 01 25    12 39.68   -08 14.7    2.015    2.551   111.9    21.0  15.1
2008 02 04    12 44.33   -09 33.6    1.773    2.426   120.4    20.5  14.6
2008 02 14    12 47.09   -10 52.9    1.543    2.299   129.3    19.4  14.1
2008 02 24    12 47.45   -12 12.9    1.328    2.171   138.5    17.6  13.5

Brian G. Marsden             (C) Copyright 2007 MPC           M.P.E.C. 2007-Y56

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