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IAU Minor Planet Center

Minor Planet Center

MPEC 2005-G74 : 2005 GH81

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M.P.E.C. 2005-G74                                Issued 2005 Apr. 11, 15:34 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

                                   2005 GH81

Observations:
     K05G81H* C2005 04 10.19445 09 30 38.41 +25 09 06.8          18.1 R EG074703
     K05G81H  C2005 04 10.20175 09 30 43.95 +25 07 40.7          18.5 R EG074703
     K05G81H  C2005 04 10.20906 09 30 49.64 +25 06 15.1          18.4 R EG074703
     K05G81H  C2005 04 10.21638 09 30 55.22 +25 04 49.8          18.4 R EG074703
     K05G81H  C2005 04 10.28640 09 31 49.11 +24 51 00.6          19.2 R EG074703
     K05G81H  C2005 04 10.28692 09 31 49.40 +24 50 54.1          19.4 R EG074703
     K05G81H  C2005 04 10.28744 09 31 49.90 +24 50 47.7          20.0 R EG074703
     K05G81H  C2005 04 10.28798 09 31 50.30 +24 50 43.0          19.1 R EG074703
     K05G81H  C2005 04 10.85398 09 39 10.80 +23 00 34.8                 EG074J95
     K05G81H  C2005 04 10.85946 09 39 14.78 +22 59 30.3                 EG074J95
     K05G81H  C2005 04 10.86492 09 39 18.86 +22 58 27.9          19.3 R EG074J95
     K05G81H  C2005 04 11.16811 09 43 03.81 +22 00 38.5          18.9 R EG074G96
     K05G81H  C2005 04 11.17495 09 43 08.62 +21 59 20.0          19.0 R EG074G96
     K05G81H  C2005 04 11.18183 09 43 13.41 +21 58 01.5          18.9 R EG074G96
     K05G81H  C2005 04 11.18571 09 43 15.97 +21 57 21.0          19.3 R EG074G90
     K05G81H  C2005 04 11.18839 09 43 18.07 +21 56 46.4          19.2 R EG074G90
     K05G81H  C2005 04 11.18869 09 43 18.26 +21 56 42.4          18.4 R EG074G96
     K05G81H  C2005 04 11.19145 09 43 20.25 +21 56 10.8          18.7 R EG074G90
     K05G81H  C2005 04 11.25698 09 44 06.09 +21 43 39.4          19.0 R EG074651
     K05G81H  C2005 04 11.25840 09 44 07.10 +21 43 22.7          19.1 R EG074651
     K05G81H  C2005 04 11.25948 09 44 07.85 +21 43 10.4          19.0 R EG074651

Observer details:
651 Grasslands Observatory, Tucson.  Observer J. E. McGaha.  0.62-m f/5.1
    Newtonian reflector + CCD.
703 Catalina Sky Survey.  Observer E. J. Christensen.  Measurers E. C. Beshore,
    C. M. Casey, E. J. Christensen, G. J. Garradd, A. D. Grauer, R. E. Hill,
    S. M. Larson, R. H. McNaught.  0.68-m Schmidt + CCD.
G90 Three Buttes Observatory, Tucson.  Observer G. R. Jones.  0.40-m
    Ritchey-Chretien + CCD.
G96 Mt. Lemmon Survey.  Observer A. Grauer.  Measurers E. C. Beshore,
    C. M. Casey, E. J. Christensen, G. J. Garradd, A. Grauer, R. E. Hill,
    S. M. Larson, R. H. McNaught.  1.5-m reflector + CCD.
J95 Great Shefford.  Observer P. Birtwhistle.  0.30-m f/6.3 Schmidt-Cassegrain
    + CCD.

Orbital elements:
2005 GH81
Epoch 2005 Mar. 31.0 TT = JDT 2453460.5                 MPC
M  12.97683              (2000.0)            P               Q
n   0.37996547     Peri.  117.51481     -0.73278657     -0.67699371
a   1.8878753      Node    20.12385     +0.53254790     -0.63331944
e   0.5299158      Incl.   11.49804     +0.42357594     -0.37494801
P   2.59           H   21.9           G   0.15
From 21 observations 2005 Apr. 10-11.

Ephemeris:
2005 GH81                a,e,i = 1.89, 0.53, 11                  q = 0.8875
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase     V
2005 04 10    09 28.04   +25 47.5    0.110    1.054   115.6    59.0    19.4
2005 04 12    09 52.84   +19 24.3    0.116    1.068   121.4    53.3    19.3
2005 04 14    10 13.61   +13 31.0    0.124    1.081   126.4    48.3    19.3
2005 04 16    10 31.07   +08 17.9    0.134    1.095   130.3    44.3    19.4
2005 04 18    10 45.88   +03 47.2    0.145    1.109   133.4    41.2    19.6
2005 04 20    10 58.57   -00 03.9    0.158    1.123   135.6    38.7    19.7
2005 04 22    11 09.56   -03 20.1    0.172    1.138   137.2    36.9    19.9
2005 04 24    11 19.20   -06 06.6    0.187    1.152   138.3    35.5    20.0
2005 04 26    11 27.73   -08 28.2    0.203    1.167   138.9    34.5    20.2
2005 04 28    11 35.37   -10 29.2    0.220    1.182   139.3    33.7    20.4
2005 04 30    11 42.28   -12 13.0    0.237    1.197   139.4    33.2    20.6

2005 05 10    12 09.71   -18 00.6    0.331    1.274   137.7    32.2    21.4
2005 05 20    12 30.89   -21 10.6    0.435    1.352   134.2    32.4    22.1

Brian G. Marsden             (C) Copyright 2005 MPC           M.P.E.C. 2005-G74

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