• MPC Preparation (Info)

    • MPEC 2008-X65 : COMET P/2008 X1 (HILL)

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    M.P.E.C. 2008-X65                                Issued 2008 Dec. 8, 15:57 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/2008 X1 (HILL)

Observations:
    PK08X010  C2008 12 04.16428 05 24 29.44 +03 17 14.2          18.2 T EX065704
    PK08X010  C2008 12 04.17583 05 24 28.87 +03 17 12.0          18.9 T EX065704
    PK08X010  C2008 12 04.18760 05 24 28.24 +03 17 18.6          18.5 T EX065704
    PK08X010  C2008 12 04.19929 05 24 27.67 +03 17 20.6          18.5 T EX065704
    PK08X010  C2008 12 05.28314 05 23 33.79 +03 21 20.2          19.0 T EX065H55
    PK08X010  C2008 12 05.28657 05 23 33.60 +03 21 21.0          18.8 T EX065H55
    PK08X010  C2008 12 05.29074 05 23 33.38 +03 21 21.8          18.5 T EX065H55
    PK08X010  C2008 12 05.67927 05 23 13.97 +03 22 52.0                 EX065900
    PK08X010  C2008 12 05.69083 05 23 13.39 +03 22 54.5          18.3 T EX065900
    PK08X010  C2008 12 05.70330 05 23 12.66 +03 22 58.1          17.4 T EX065349
    PK08X010  C2008 12 05.70624 05 23 12.52 +03 22 58.6                 EX065349
    PK08X010  C2008 12 05.94267 05 23 00.98 +03 23 52.7                 EX065585
    PK08X010  C2008 12 05.94384 05 23 00.83 +03 23 52.8                 EX065585
    PK08X010  C2008 12 05.94493 05 23 00.74 +03 23 55.0          17.8 N EX065585
    PK08X010  C2008 12 05.95244 05 23 00.37 +03 23 55.2          17.7 N EX065585
    PK08X010  C2008 12 05.95541 05 23 00.17 +03 23 56.4          17.8 N EX065585
    PK08X010  C2008 12 05.95689 05 23 00.10 +03 23 56.7          17.6 N EX065585
    PK08X010  C2008 12 05.97389 05 22 59.28 +03 24 00.5          17.7 N EX065213
    PK08X010  C2008 12 05.97542 05 22 59.21 +03 24 01.0          17.7 N EX065213
    PK08X010  C2008 12 05.97999 05 22 58.97 +03 24 01.0          17.7 N EX065213
    PK08X010  C2008 12 06.68813 05 22 23.19 +03 26 54.7          17.8 N EX065900
    PK08X010  C2008 12 06.69969 05 22 22.56 +03 26 57.2                 EX065900
    PK08X010  C2008 12 06.87868 05 22 13.81 +03 27 41.5          17.6 T EX065A77
    PK08X010  C2008 12 07.79922 05 21 26.98 +03 31 38.9          17.8 N EX065104
    PK08X010  C2008 12 07.81906 05 21 25.92 +03 31 40.3          18.5 N EX065104
    PK08X010  C2008 12 07.83117 05 21 25.36 +03 31 45.0          19.3 N EX065104
    PK08X010  C2008 12 07.83833 05 21 24.99 +03 31 46.8          17.6 T EX065A77
    PK08X010  C2008 12 07.85073 05 21 24.35 +03 31 49.9          17.6 T EX065A77
    PK08X010  C2008 12 07.86313 05 21 23.72 +03 31 53.2          17.5 T EX065A77

Observer details:
104 San Marcello Pistoiese.  Observers L. Tesi, E. Tognelli, G. Fagioli,
    M. Mazzucato.  Measurer L. Tesi.  0.60-m f/4 reflector + CCD.
213 Observatorio Montcabre.  Observer R. Naves.  Measurer M. Campas.  0.30-m
    f/10 Schmidt-Cassegrain + CCD.
349 Ageo.  Observer K. Kadota.  0.25-m f/5.0 reflector + CCD.
585 Kiev comet station.  Observers A. Baransky, V. Ponomarenko.  0.7-m f/4
    reflector + CCD.
704 Lincoln Laboratory ETS, New Mexico.  Observers M. Bezpalko, D. Torres,
    R. Kracke, G. Spitz, J. Kistler.  Measurers J. Stuart, S. Scruggs.  1.0-m
    f/2.15 reflector + CCD.
900 Moriyama.  Observer Y. Ikari.  0.26-m f/7.0 reflector + CCD.
A77 Observatoire Chante-Perdrix, Dauban.  Observers C. Rinner, F. Kugel.
    Measurer F. Kugel.  0.5-m f/3 reflector + CCD.
H55 Astronomical Research Observatory, Charleston.  Observer R. Holmes.
    Measurers C. Fager, H. Devore.  0.61-m f/4.0 astrograph + CCD.

Orbital elements:
    P/2008 X1 (Hill)
T 2009 May 11.785 TT                                    MPC
q   2.34052              (2000.0)            P               Q
n   0.144530       Peri.    6.318       -0.545925       -0.786554
a   3.59609        Node   117.132       +0.753803       -0.611473
e   0.34915        Incl.   18.923       +0.365715       +0.086217
P   6.82
From 51 observations 2008 Dec. 4-7.

Ephemeris:
    P/2008 X1 (Hill)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2008 11 30    05 27.78   +03 04.3    1.635    2.568   156.0     9.0  17.7
2008 12 10    05 19.56   +03 41.8    1.593    2.543   160.6     7.4  17.6
2008 12 20    05 10.83   +04 40.9    1.577    2.519   158.7     8.2  17.5
2008 12 30    05 02.73   +05 59.8    1.588    2.496   151.5    10.8  17.5
2009 01 09    04 56.33   +07 34.6    1.623    2.475   142.2    14.1  17.5
2009 01 19    04 52.40   +09 19.9    1.680    2.455   132.5    17.2  17.5
2009 01 29    04 51.36   +11 10.8    1.755    2.436   123.0    19.8  17.6

Brian G. Marsden             (C) Copyright 2008 MPC           M.P.E.C. 2008-X65

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    MPEC number:

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