MPEC 2004-H51 : 2004 HH20

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M.P.E.C. 2004-H51                                Issued 2004 Apr. 23, 00:26 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 HH20

Observations:
     K04H20H* C2004 04 21.36843 14 04 50.35 -10 35 41.9          19.0   EH051704
     K04H20H  C2004 04 21.37948 14 04 56.61 -10 37 29.3          19.4   EH051704
     K04H20H  C2004 04 21.39053 14 05 02.80 -10 39 16.7          19.7   EH051704
     K04H20H  C2004 04 21.40173 14 05 09.24 -10 41 05.9          19.2   EH051704
     K04H20H  C2004 04 21.41278 14 05 15.75 -10 42 53.8          19.5   EH051704
     K04H20H  C2004 04 22.29682 14 15 10.78 -13 13 56.4          18.7   EH051704
     K04H20H  C2004 04 22.29699 14 15 10.87 -13 14 00.4          18.7   EH051704
     K04H20H  C2004 04 22.30752 14 15 17.51 -13 15 51.1          19.0   EH051704
     K04H20H  C2004 04 22.31799 14 15 24.12 -13 17 43.0          19.0   EH051704
     K04H20H  C2004 04 22.31815 14 15 24.25 -13 17 44.3          18.8   EH051704
     K04H20H  C2004 04 22.32853 14 15 30.81 -13 19 34.4          18.9   EH051704
     K04H20H  C2004 04 22.32869 14 15 30.90 -13 19 35.1          19.3   EH051704
     K04H20H  C2004 04 22.33920 14 15 37.49 -13 21 29.1          19.4   EH051704
     K04H20H pC2004 04 22.96799 14 23 21.72 -15 16 52.9          19.6 R EH051J95
     K04H20H pC2004 04 22.97230 14 23 24.74 -15 17 38.5          19.2 R EH051J95

Observer details:
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.
J95 Great Shefford.  Observer P. Birtwhistle.  0.30-m f/6.3 Schmidt-Cassegrain
    + CCD.

Orbital elements:
2004 HH20
Epoch 2004 July 14.0 TT = JDT 2453200.5                 MPC
M  27.62160              (2000.0)            P               Q
n   0.42137996     Peri.  198.82509     -0.62211114     +0.78197355
a   1.7620577      Node    32.73713     -0.70883388     -0.54157662
e   0.4141423      Incl.    4.10017     -0.33246392     -0.30856462
P   2.34           H   24.7           G   0.15           U   8
Residuals in seconds of arc
040421 704  0.1+  0.1-    040422 704  0.0   1.2+    040422 704  1.0+  0.7+
040421 704  0.1+  0.0     040422 704  0.3-  1.0-    040422 704  0.8+  1.7+
040421 704  1.4-  0.1+    040422 704  0.0   0.4+    040422 704  0.0   0.5-
040421 704  1.0-  0.3-    040422 704  0.3+  0.0     040422 J95  0.7-  2.2-
040421 704  1.1+  0.7-    040422 704  0.8+  0.4+    040422 J95  0.9-  0.8+

Ephemeris:
2004 HH20                a,e,i = 1.76, 0.41, 4                   q = 1.0323
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2004 04 15    13 17.50   +02 09.3    0.064    1.066   167.4    11.9    19.6
2004 04 17    13 29.00   -00 57.0    0.057    1.061   170.0     9.5    19.2
2004 04 19    13 43.27   -04 48.6    0.052    1.056   173.5     6.2    18.9
2004 04 21    14 01.14   -09 34.3    0.047    1.052   177.4     2.5    18.4
2004 04 23    14 23.71   -15 19.5    0.042    1.048   174.4     5.4    18.4
2004 04 25    14 52.29   -21 58.9    0.039    1.044   166.9    12.7    18.5
2004 04 27    15 28.08   -29 06.9    0.037    1.041   157.9    21.4    18.7
2004 04 29    16 11.49   -35 54.7    0.037    1.039   148.2    30.7    18.9
2004 05 01    17 00.96   -41 26.0    0.038    1.036   138.8    39.8    19.2
2004 05 03    17 52.46   -45 06.5    0.040    1.035   130.4    47.9    19.6
2004 05 05    18 40.92   -46 58.7    0.044    1.033   123.6    54.4    20.0
2004 05 07    19 22.81   -47 30.2    0.048    1.033   118.2    59.5    20.3
2004 05 09    19 57.10   -47 13.0    0.053    1.032   114.1    63.2    20.6
2004 05 11    20 24.44   -46 30.8    0.058    1.032   111.1    65.9    20.9
2004 05 13    20 46.08   -45 38.5    0.064    1.033   109.0    67.7    21.2
2004 05 15    21 03.28   -44 44.1    0.070    1.034   107.5    68.8    21.4

Kyle E. Smalley              (C) Copyright 2004 MPC           M.P.E.C. 2004-H51

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