MPEC 2004-X26 : 2004 XK4

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M.P.E.C. 2004-X26                                Issued 2004 Dec. 8, 16:33 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

                                   2004 XK4

Observations:
     K04X04K* C2004 12 07.25050 04 37 52.61 +25 20 33.1          19.2   EX026704
     K04X04K  C2004 12 07.26500 04 37 51.59 +25 20 58.3          19.9   EX026704
     K04X04K  C2004 12 07.27801 04 37 50.65 +25 21 20.0          19.4   EX026704
     K04X04K  C2004 12 07.29056 04 37 49.69 +25 21 41.0          19.5   EX026704
     K04X04K  C2004 12 07.30421 04 37 48.78 +25 22 05.4          19.5   EX026704
     K04X04K  C2004 12 08.10368 04 36 58.77 +25 44 41.3          19.7   EX026130
     K04X04K  C2004 12 08.11619 04 36 57.93 +25 45 02.1          19.9   EX026130
     K04X04K  C2004 12 08.17429 04 36 56.38 +25 46 48.5          19.1 R EX026649
     K04X04K  C2004 12 08.17607 04 36 56.23 +25 46 51.3          19.1 R EX026649
     K04X04K  C2004 12 08.17786 04 36 56.09 +25 46 54.5          19.1 R EX026649
     K04X04K  C2004 12 08.17964 04 36 56.00 +25 46 57.6          19.0 R EX026649

Observer details:
130 Lumezzane.  Observers C. Cremaschini, S. Foglia, W. Marinello, M. Micheli,
    G. Pizzetti.  Measurers F. Diomede, S. Foglia, G. Galli, W. Marinello.
    0.40-m f/4.5 reflector + CCD.
649 Powell Observatory, Louisburg.  Observers R. Fredrick, R. Trentman.
    0.75-m Newtonian reflector + 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:
2004 XK4
Epoch 2004 Dec. 1.0 TT = JDT 2453340.5                  MPC
M 344.10918              (2000.0)            P               Q
n   0.44400852     Peri.   27.48118     -0.11986485     -0.98192643
a   1.7016694      Node    69.70966     +0.87980072     -0.17341539
e   0.2555557      Incl.    8.98397     +0.45998165     +0.07581284
P   2.22           H   20.8           G   0.15
From 11 observations 2004 Dec. 7-8.

Ephemeris:
2004 XK4                 a,e,i = 1.70, 0.26, 9                   q = 1.2668
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2004 12 01    04 44.03   +22 24.8    0.311    1.296   176.6     2.6    19.1
2004 12 11    04 34.05   +27 07.2    0.301    1.282   170.2     7.5    19.3
2004 12 21    04 25.33   +31 39.1    0.306    1.273   158.1    16.8    19.6
2004 12 31    04 21.64   +35 32.6    0.324    1.268   147.2    24.8    20.0
2005 01 10    04 25.23   +38 36.3    0.351    1.267   138.2    31.2    20.4
2005 01 20    04 36.83   +40 50.5    0.388    1.272   130.8    35.9    20.7
2005 01 30    04 55.72   +42 18.8    0.430    1.280   124.8    39.2    21.1
2005 02 09    05 20.34   +43 02.5    0.479    1.294   119.9    41.4    21.4
2005 02 19    05 49.09   +43 03.5    0.532    1.311   115.8    42.8    21.7
2005 03 01    06 20.18   +42 23.8    0.592    1.332   112.2    43.5    22.0

Timothy B. Spahr             (C) Copyright 2004 MPC           M.P.E.C. 2004-X26

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