MPEC 2009-Y14 : COMET P/2009 W1 (HILL)

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M.P.E.C. 2009-Y14                                Issued 2009 Dec. 16, 18:38 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.cfa.harvard.edu/iau/mpc.html  ISSN 1523-6714

                            COMET P/2009 W1 (HILL)

Observations:
    PK09W010  C2009 11 21.99097 09 49 19.84 +28 58 46.9          18.7 N EY014473
    PK09W010  C2009 11 21.99236 09 49 19.94 +28 58 47.2          18.7 N EY014473
    PK09W010  C2009 12 09.27097 10 00 52.50 +29 56 54.7          19.3 N EY014J47
    PK09W010  C2009 12 09.27576 10 00 52.58 +29 56 55.4          18.8 N EY014J47
    PK09W010  C2009 12 09.28055 10 00 52.73 +29 56 56.0          18.2 N EY014J47
    PK09W010  C2009 12 10.41416 10 01 24.85 +30 02 01.2          18.9 T EY014704
    PK09W010  C2009 12 10.42691 10 01 25.11 +30 02 03.5          18.7 T EY014704
    PK09W010  C2009 12 10.43963 10 01 25.54 +30 02 08.0          18.7 T EY014704
    PK09W010  C2009 12 15.20732 10 03 19.44 +30 25 05.3          19.5 N EY014461
    PK09W010  C2009 12 15.21196 10 03 19.52 +30 25 06.6                 EY014461
    PK09W010  C2009 12 15.21661 10 03 19.67 +30 25 08.3                 EY014461

Observer details:
461 University of Szeged, Piszkesteto Stn. (Konkoly).  Observer K. Sarneczky.
    0.60-m Schmidt + CCD.
473 Remanzacco.  Observers L. Donato, V. Gonano, E. Guido, V. Santini,
    G. Sostero.  0.45-m f/4.4 Newtonian reflector + CCD.
704 Lincoln Laboratory ETS, New Mexico.  Observers M. Blythe, G. Spitz,
    R. Brungard, J. Paige, P. Festler.  1.0-m f/2.15 reflector + CCD.
J47 Observatorio Nazaret.  Observer G. Muler.  Measurers J. M. Ruiz, G. Muler.
    0.30-m Schmidt-Cassegrain + CCD.

Orbital elements:
    P/2009 W1 (Hill)
T 2009 Oct. 2.061 TT                                    MPC
q   2.98322              (2000.0)            P               Q
n   0.104056       Peri.   53.563       -0.315279       -0.925530
a   4.47671        Node    56.128       +0.769645       -0.378675
e   0.33361        Incl.   14.633       +0.555199       -0.000640
P   9.47
From 105 observations 2009 Nov. 18-Dec. 15.

Ephemeris:
    P/2009 W1 (Hill)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2009 12 15    10 03.25   +30 24.0    2.405    3.013   119.4    16.5  18.2
2009 12 25    10 05.47   +31 19.9    2.309    3.022   128.5    14.7  18.1
2010 01 04    10 05.14   +32 23.9    2.230    3.031   137.8    12.6  18.1
2010 01 14    10 02.27   +33 31.4    2.171    3.042   146.7    10.2  18.0
2010 01 24    09 57.12   +34 35.8    2.136    3.054   154.4     8.0  18.0
2010 02 03    09 50.31   +35 29.8    2.127    3.066   158.7     6.7  18.0
2010 02 13    09 42.66   +36 07.4    2.145    3.080   157.4     7.1  18.0
2010 02 23    09 35.18   +36 24.5    2.189    3.094   151.4     8.8  18.1

     Further observations of this comet are desirable.

Brian G. Marsden             (C) Copyright 2009 MPC           M.P.E.C. 2009-Y14

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