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IAU Minor Planet Center

Minor Planet Center

MPEC 2004-H79 : 2004 HW53

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M.P.E.C. 2004-H79                                Issued 2004 Apr. 27, 14:32 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 Steven and Michele Kirsch 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 HW53

Observations:
     K04H53W* C2004 04 26.19790 11 40 33.33 +30 09 30.6          19.1   EH079704
     K04H53W  C2004 04 26.20850 11 40 32.78 +30 07 59.8          19.9   EH079704
     K04H53W  C2004 04 26.21902 11 40 32.28 +30 06 30.4          19.5   EH079704
     K04H53W  C2004 04 26.22943 11 40 31.69 +30 05 01.3          19.3   EH079704
     K04H53W  C2004 04 26.23984 11 40 31.10 +30 03 32.8          19.1   EH079704
     K04H53W  C2004 04 27.01291 11 39 58.49 +28 14 54.2          18.4 R EH079A50
     K04H53W  C2004 04 27.01368 11 39 58.44 +28 14 47.7          18.1 R EH079A50
     K04H53W  C2004 04 27.01485 11 39 58.39 +28 14 38.9          18.4 R EH079A50
     K04H53W  C2004 04 27.14257 11 39 54.71 +27 57 09.6          19.1 R EH079649
     K04H53W  C2004 04 27.14434 11 39 54.63 +27 56 55.3          19.5 R EH079649
     K04H53W  C2004 04 27.14611 11 39 54.53 +27 56 40.4          19.2 R EH079649
     K04H53W  C2004 04 27.14789 11 39 54.45 +27 56 25.8          19.3 R EH079649
     K04H53W 5C2004 04 27.17002 11 39 54.06 +27 53 25.7          18.8 R EH079673
     K04H53W 5C2004 04 27.17211 11 39 53.94 +27 53 07.4                 EH079673
     K04H53W 5C2004 04 27.17708 11 39 53.73 +27 52 26.9                 EH079673
     K04H53W 5C2004 04 27.18634 11 39 53.28 +27 51 09.2                 EH079673
     K04H53W 5C2004 04 27.19398 11 39 52.96 +27 50 06.8                 EH079673
     K04H53W 5C2004 04 27.20278 11 39 52.51 +27 48 55.1                 EH079673
     K04H53W  C2004 04 27.26072 11 39 49.65 +27 40 56.5          19.2 R EH079854
     K04H53W  C2004 04 27.26733 11 39 49.27 +27 40 02.1          19.3 R EH079854
     K04H53W  C2004 04 27.27393 11 39 48.89 +27 39 02.7          19.4 R EH079854

Observer details:
649 Powell Observatory, Louisburg.  Observers R. Fredrick, R. Trentman.
    0.75-m Newtonian + CCD.
673 Table Mountain Observatory, Wrightwood.  Observer J. Young.  0.6-m
    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.
854 Sabino Canyon Observatory, Tucson.  Observer J. E. McGaha.  0.356-m f/10.0
    Schmidt-Cassegrain + CCD.
A50 Andrushivka Astronomical Observatory.  Observer V. Lokot.  0.6-m reflector
    + CCD.

Orbital elements:
2004 HW53
Epoch 2004 Apr. 25.0 TT = JDT 2453120.5                 MPC
M  20.91587              (2000.0)            P               Q
n   0.33382527     Peri.   96.66890     -0.52802254     -0.77863739
a   2.0580531      Node    33.41652     +0.29758475     -0.54351351
e   0.5506564      Incl.   37.99138     +0.79538388     -0.31355521
P   2.95           H   19.5           G   0.15
From 21 observations 2004 Apr. 26-27.

Ephemeris:
2004 HW53                a,e,i = 2.06, 0.55, 38                  q = 0.9248
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2004 04 25    11 41.54   +33 02.9    0.336    1.216   121.6    44.8    19.3
2004 05 05    11 37.76   +12 20.9    0.418    1.293   124.7    39.9    19.7
2004 05 15    11 40.36   -01 05.6    0.538    1.371   121.4    39.0    20.4
2004 05 25    11 46.63   -09 44.9    0.682    1.450   116.3    38.8    21.0
2004 06 04    11 55.40   -15 40.1    0.838    1.529   110.9    38.3    21.6
2004 06 14    12 06.01   -20 00.6    1.002    1.607   105.6    37.5    22.0

Timothy B. Spahr             (C) Copyright 2004 MPC           M.P.E.C. 2004-H79

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