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IAU Minor Planet Center

Minor Planet Center

MPEC 2004-X31 : COMET C/2004 X1 (LINEAR)

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M.P.E.C. 2004-X31                                Issued 2004 Dec.  9, 18:17 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 X1 (LINEAR)

Observations:
    CK04X010  C2004 12 07.07585 21 56 11.20 -04 32 40.1          18.7 T EX031704
    CK04X010  C2004 12 07.08809 21 56 16.85 -04 31 56.3          18.8 T EX031704
    CK04X010  C2004 12 07.10027 21 56 22.76 -04 31 07.7          19.1 T EX031704
    CK04X010  C2004 12 07.11247 21 56 28.56 -04 30 20.3          18.9 T EX031704
    CK04X010  C2004 12 09.10381 22 12 32.49 -02 25 54.5          16.5 T EX031703
    CK04X010  C2004 12 09.10487 22 12 32.95 -02 25 50.4          16.2 T EX031703
    CK04X010  C2004 12 09.10593 22 12 33.41 -02 25 46.8          16.4 T EX031703
    CK04X010  C2004 12 09.10699 22 12 33.84 -02 25 43.9          16.6 T EX031703
    CK04X010  C2004 12 09.69580 22 17 20.03 -01 48 38.4                 EX031246
    CK04X010  C2004 12 09.69624 22 17 20.13 -01 48 37.6                 EX031246
    CK04X010  C2004 12 09.69667 22 17 20.39 -01 48 34.5                 EX031246
    CK04X010  C2004 12 09.69706 22 17 20.53 -01 48 33.7                 EX031246
    CK04X010  C2004 12 09.69747 22 17 20.73 -01 48 32.5                 EX031246
    CK04X010  C2004 12 09.69793 22 17 20.91 -01 48 30.8                 EX031246
    CK04X010  C2004 12 09.69846 22 17 21.21 -01 48 28.8                 EX031246
    CK04X010  C2004 12 09.69895 22 17 21.43 -01 48 26.7                 EX031246

Observer details:
246 Klet Observatory-KLENOT.  Observers M. Tichy, M. Kocer, J. Ticha.
    Measurer M. Tichy.  1.06-m KLENOT Telescope + CCD.
703 Catalina Sky Survey.  Observer E. J. Christensen.  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.
704 Lincoln Laboratory ETS, New Mexico.  Observers M. Blythe, F. Shelly,
    M. Bezpalko, R. Huber, L. Manguso, D. Torres, R. Kracke, M. McCleary,
    H. Stange, A. Milner.  Measurers J. Stuart, R. Sayer, J. Evans, J. Kommers.
    1.0-m f/2.15 reflector + CCD.

Orbital elements:
    C/2004 X1 (LINEAR)
T 2004 Nov. 7.366 TT                                    MPC
q   0.81028              (2000.0)            P               Q
                   Peri.  355.104       +0.996612       +0.082245
                   Node     0.179       -0.071708       +0.870755
e   1.0            Incl.    5.669       -0.040278       +0.484790
From 14 observations 2004 Dec. 7-9.

Ephemeris:
    C/2004 X1 (LINEAR)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2004 12 01    21 08.29   -10 28.0    0.543    0.925    67.4    79.8  15.8
2004 12 11    22 27.87   -00 26.0    0.519    1.025    79.4    70.7  16.2
2004 12 21    23 46.12   +09 29.6    0.560    1.142    91.2    59.4  16.8
2004 12 31    00 53.80   +16 50.8    0.660    1.269    99.2    49.9  17.6
2005 01 10    01 48.21   +21 27.6    0.803    1.401   102.8    43.2  18.5
2005 01 20    02 31.49   +24 13.7    0.976    1.535   103.1    38.6  19.3
2005 01 30    03 06.70   +25 54.8    1.171    1.670   101.2    35.3  20.1

     The 1990-1991 observations of P/2004 V4 on MPEC 2004-X29 should not
have been preceded by the letter "C" (for CCD).

Brian G. Marsden             (C) Copyright 2004 MPC           M.P.E.C. 2004-X31

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