MPEC 2005-A52 : COMET C/2004 X2 (LINEAR)

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M.P.E.C. 2005-A52                                Issued 2005 Jan. 14, 15:49 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.

                  Supported in part by the Brinson Foundation
             Prepared using the Tamkin Foundation Computer Network

                              MPC@CFA.HARVARD.EDU
          URL http://cfa-www.harvard.edu/iau/mpc.html  ISSN 1523-6714

                           COMET C/2004 X2 (LINEAR)

Observations:
    CK04X020  C2005 01 06.66757 09 06 22.53 +07 44 18.1                 EA052349
    CK04X020  C2005 01 06.67299 09 06 22.18 +07 44 15.0                 EA052349
    CK04X020  C2005 01 06.67839 09 06 21.82 +07 44 11.7          17.9 T EA052349
    CK04X020  C2005 01 07.38591 09 05 34.77 +07 37 33.6          16.6 T EA052703
    CK04X020  C2005 01 07.39124 09 05 34.47 +07 37 30.7          17.0 T EA052703
    CK04X020  C2005 01 07.39657 09 05 34.11 +07 37 27.2          16.9 T EA052703
    CK04X020  C2005 01 07.40191 09 05 33.79 +07 37 24.1          16.8 T EA052703
    CK04X020  C2005 01 09.03390 09 03 44.46 +07 22 01.7          17.5 N EA052213
    CK04X020  C2005 01 09.03465 09 03 44.40 +07 22 01.2          17.5 N EA052213
    CK04X020  C2005 01 09.03541 09 03 44.33 +07 22 00.7          17.5 N EA052213
    CK04X020  C2005 01 10.97916 09 01 31.44 +07 03 58.0          17.5 N EA052138
    CK04X020  C2005 01 10.97927 09 01 31.49 +07 03 56.8          18.1 N EA052118
    CK04X020  C2005 01 10.98339 09 01 31.19 +07 03 54.8          18.1 N EA052118
    CK04X020  C2005 01 10.98867 09 01 30.83 +07 03 51.7          17.9 N EA052118
    CK04X020  C2005 01 10.99014 09 01 30.66 +07 03 51.7          18.1 N EA052138
    CK04X020  C2005 01 11.00388 09 01 29.79 +07 03 43.1          18.6 T EA052561
    CK04X020  C2005 01 11.00904 09 01 29.42 +07 03 40.5          18.9 T EA052561
    CK04X020  C2005 01 11.01435 09 01 29.11 +07 03 36.8          18.8 T EA052561
    CK04X020  C2005 01 11.99836 09 00 20.83 +06 54 33.4          18.2 T EA052A41
    CK04X020  C2005 01 12.02697 09 00 18.82 +06 54 17.9          18.2 T EA052A41
    CK04X020  C2005 01 12.05663 09 00 16.71 +06 54 01.3          18.0 T EA052A41

Observer details:
118 Modra.  Observer S. Gajdos.  0.6-m f/5.5 reflector + CCD.
138 Village-Neuf.  Observers C. Demeautis, D. Matter, M. Porte.  Measurer
    C. Demeautis.
213 Observatorio Montcabre.  Observer R. Naves.  Measurer M. Campas.  0.30-m
    f/6.6 Schmidt-Cassegrain + CCD.
349 Ageo.  Observer K. Kadota.  0.25-m f/5.0 reflector + CCD.
561 Piszkesteto.  Observer J. Kelemen.  0.6-m Schmidt + CCD.
703 Catalina Sky Survey.  Observer S. M. Larson.  Measurers E. C. Beshore,
    C. M. Casey, E. J. Christensen, G. J. Garradd, R. E. Hill, S. M. Larson,
    R. H. McNaught.  0.68-m Schmidt + CCD.
A41 Rezman Observatory, Kamnik.  Observer R. Palcic.  0.40-m f/3.5 reflector
    + CCD.

Orbital elements:
    C/2004 X2 (LINEAR)
T 2004 Aug. 24.2161 TT                                  MPC
q   3.792315             (2000.0)            P               Q
z  +0.000826       Peri.  162.1910      -0.5027622      -0.4180584
                   Node   307.3391      +0.6310115      +0.4207306
e   0.996868       Incl.   72.1082      +0.5908085      -0.8051167
From 131 observations 2004 Nov. 19-2005 Jan. 12.

Ephemeris:
    C/2004 X2 (LINEAR)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2005 01 10    09 02.65   +07 13.1    3.086    3.983   152.3     6.6  18.4
2005 01 20    08 50.83   +05 43.1    3.062    4.011   162.3     4.3  18.5
2005 01 30    08 38.65   +04 20.3    3.076    4.040   166.3     3.3  18.5
2005 02 09    08 26.87   +03 06.2    3.127    4.071   160.4     4.7  18.6
2005 02 19    08 16.19   +02 01.3    3.215    4.103   150.3     6.9  18.7
2005 03 01    08 07.14   +01 05.3    3.333    4.137   139.5     9.0  18.8

Brian G. Marsden             (C) Copyright 2005 MPC           M.P.E.C. 2005-A52

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