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IAU Minor Planet Center

Minor Planet Center

MPEC 2006-C63 : COMET C/2005 EL173 (LONEOS)

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M.P.E.C. 2006-C63                                Issued 2006 Feb. 11, 15:47 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
                  Supported in part by the TABASGO 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/2005 EL173 (LONEOS)

Observations:
    CK05EH3L  C2006 01 15.07568 10 15 39.38 -08 20 36.7          17   N EC063204
    CK05EH3L  C2006 01 15.10467 10 15 37.56 -08 20 41.2                 EC063204
    CK05EH3L  C2006 01 21.96909 10 08 02.13 -08 36 46.3          17.3 N EC063213
    CK05EH3L  C2006 01 21.97259 10 08 01.87 -08 36 47.0          17.3 N EC063213
    CK05EH3L  C2006 01 21.97402 10 08 01.79 -08 36 47.1          17.3 N EC063213
    CK05EH3L  C2006 01 21.97884 10 08 01.43 -08 36 47.7          17.3 N EC063213
    CK05EH3L  C2006 01 21.97899 10 08 01.46 -08 36 48.2          17.3 N EC063213
    CK05EH3L  C2006 01 22.12234 10 07 51.41 -08 37 05.1          17.6 N EC063232
    CK05EH3L  C2006 01 22.12901 10 07 50.93 -08 37 06.1          17.6 N EC063232
    CK05EH3L  C2006 01 22.13705 10 07 50.35 -08 37 06.7          17.6 N EC063232
    CK05EH3L  C2006 01 23.73147 10 05 57.89 -08 40 07.0                 EC063349
    CK05EH3L  C2006 01 23.73439 10 05 57.67 -08 40 07.2          17.4 T EC063349
    CK05EH3L  C2006 01 24.58641 10 04 56.75 -08 41 36.4                 EC063D88
    CK05EH3L  C2006 01 24.58960 10 04 56.49 -08 41 37.2                 EC063D88
    CK05EH3L  C2006 01 24.59278 10 04 56.27 -08 41 37.2          17.8 T EC063D88
    CK05EH3L  C2006 01 25.95509 10 03 17.43 -08 43 50.5          17.1 N EC063213
    CK05EH3L  C2006 01 25.95966 10 03 17.09 -08 43 50.6          17.1 N EC063213
    CK05EH3L  C2006 01 25.96010 10 03 17.05 -08 43 50.7          17.1 N EC063213
    CK05EH3L  C2006 01 28.33738 10 00 20.77 -08 47 09.9          17.0 T EC063703
    CK05EH3L  C2006 01 28.34531 10 00 20.16 -08 47 10.3          17.0 T EC063703
    CK05EH3L  C2006 01 28.35326 10 00 19.54 -08 47 11.0          17.0 T EC063703
    CK05EH3L  C2006 01 28.36124 10 00 18.93 -08 47 11.9          17.1 T EC063703

Observer details:
204 Schiaparelli Observatory.  Observer L. Buzzi.  0.60-m f/4.64 reflector
    + CCD.
213 Observatorio Montcabre.  Observer R. Naves.  Measurer M. Campas.  0.30-m
    f/10 Schmidt-Cassegrain + CCD.
232 Masquefa Observatory.  Observer E. Reina.  0.25-m f/3.3 Schmidt-Cassegrain
    + CCD.
349 Ageo.  Observer K. Kadota.  0.25-m f/5.0 reflector + CCD.
703 Catalina Sky Survey.  Observer R. E. Hill.  Measurers E. C. Beshore,
    E. J. Christensen, G. J. Garradd, A. D. Grauer, R. E. Hill, R. A. Kowalski,
    S. M. Larson, R. H. McNaught.  0.68-m Schmidt + CCD.
D88 Hiratsuka.  Observer Y. Sugiyama.  0.25-m f/5.0 reflector + CCD.

Orbital elements:
    C/2005 EL173 (LONEOS)
Epoch 2007 Mar. 1.0 TT = JDT 2454160.5
T 2007 Mar. 5.88513 TT                                  MPC
q   3.8864576            (2000.0)            P               Q
z  -0.0008515      Peri.  261.49259     +0.02630148     +0.97967112
 +/-0.0000051      Node   344.79652     +0.90469909     -0.10795676
e   1.0033092      Incl.  130.68001     -0.42523851     -0.16908528
From 84 observations 2005 Mar. 3-2006 Jan. 28, mean residual 0".51.

     The "original" and "future" barycentric values of 1/a are +0.000060
and -0.000021 (+/- 0.000005) AU^-1, respectively.

Brian G. Marsden             (C) Copyright 2006 MPC           M.P.E.C. 2006-C63

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