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IAU Minor Planet Center

Minor Planet Center

MPEC 2005-U19 : COMET C/2005 T4 (SWAN)

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M.P.E.C. 2005-U19                                Issued 2005 Oct. 23, 04:12 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 T4 (SWAN)

Observations:
    CK05T040  C2005 10 22.06892 16 27 47.50 -09 13 25.2          12.4 T EU019703
    CK05T040  C2005 10 22.07064 16 27 47.68 -09 13 27.0                 EU019703
    CK05T040  C2005 10 22.07230 16 27 47.91 -09 13 28.7                 EU019703
    CK05T040  C2005 10 22.39354 16 28 24.32 -09 17 53.4          18.1 N EU019413
    CK05T040  C2005 10 22.39504 16 28 24.50 -09 17 55.1          18.0 N EU019413
    CK05T040  C2005 10 22.39654 16 28 24.67 -09 17 56.3          18.0 N EU019413
    CK05T040  C2005 10 22.39809 16 28 24.83 -09 17 57.4          17.9 N EU019413
    CK05T040  C2005 10 22.39960 16 28 24.99 -09 17 58.8          17.9 N EU019413
    CK05T040  C2005 10 22.40110 16 28 25.18 -09 18 00.0          17.7 N EU019413
    CK05T040  C2005 10 23.11432 16 29 41.59 -09 27 54.7          17.1 N EU019651
    CK05T040  C2005 10 23.11660 16 29 41.84 -09 27 56.5          16.9 N EU019651
    CK05T040  C2005 10 23.11889 16 29 42.08 -09 27 57.9          17.1 N EU019651

Observer details:
413 Siding Spring.  Observer R. H. McNaught.  1.0-m f/8 reflector + CCD.
651 Grasslands Observatory, Tucson.  Observer J. E. McGaha.  0.62-m f/5.1
    reflector + CCD.
703 Catalina Sky Survey.  Observer E. J. Christensen.  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.

Orbital elements:
    C/2005 T4 (SWAN)
T 2005 Oct.  9.602 TT                                   MPC
q   0.64699              (2000.0)            P               Q
                   Peri.   40.696       +0.950054       -0.274365
                   Node    25.945       -0.289733       -0.952518
e   1.0            Incl.  160.126       +0.115986       -0.132037
From 12 observations 2005 Oct. 22-23.

Ephemeris:
    C/2005 T4 (SWAN)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2005 10 17    16 14.42   -07 44.9    0.856    0.666    41.3    80.8  12.9
2005 10 22    16 27.66   -09 12.3    1.054    0.698    39.7    65.6  13.6
2005 10 27    16 35.17   -10 14.3    1.244    0.744    36.7    53.0  14.2
2005 11 01    16 39.76   -11 02.0    1.420    0.799    33.0    42.6  14.8
2005 11 06    16 42.83   -11 40.6    1.583    0.862    29.0    33.9  15.4

Brian G. Marsden             (C) Copyright 2005 MPC           M.P.E.C. 2005-U19

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