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IAU Minor Planet Center

Minor Planet Center

MPEC 2004-T44 : COMET C/2003 S4 (LINEAR)

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M.P.E.C. 2004-T44                                Issued 2004 Oct. 11, 13:35 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

                           COMET C/2003 S4 (LINEAR)

Observations:
    CK03S04a  C2004 09 24.07229 03 16 37.08 +21 46 31.9          20.6 N ET044941
    CK03S04a  C2004 09 24.07352 03 16 37.07 +21 46 31.5          20.6 N ET044941
    CK03S04a  C2004 09 24.07594 03 16 37.06 +21 46 30.4          20.5 N ET044941
    CK03S04a  C2004 09 25.03501 03 16 33.11 +21 39 00.9          20.6 N ET044941
    CK03S04a  C2004 09 25.04074 03 16 33.10 +21 38 58.4          20.6 N ET044941
    CK03S04a  C2004 09 25.04646 03 16 33.09 +21 38 56.7          20.8 N ET044941
    CK03S04a  C2004 10 09.04407 03 13 57.31 +19 38 08.4          20.9 T ET044941
    CK03S04a  C2004 10 09.04782 03 13 57.27 +19 38 06.3          20.9 T ET044941
    CK03S04a  C2004 10 09.04981 03 13 57.20 +19 38 04.8          20.8 T ET044941
    CK03S04a  C2004 10 09.05325 03 13 57.18 +19 38 02.8          20.7 T ET044941
    CK03S04a  C2004 10 09.05669 03 13 57.11 +19 38 00.9          21.1 T ET044941
    CK03S04a  C2004 10 09.05899 03 13 57.08 +19 37 59.1          20.9 T ET044941
    CK03S04b  C2004 09 24.07229 03 16 37.64 +21 46 30.9          20.8 N ET044941
    CK03S04b  C2004 09 24.07352 03 16 37.63 +21 46 30.7          20.9 N ET044941
    CK03S04b  C2004 09 24.07594 03 16 37.62 +21 46 29.9          20.8 N ET044941
    CK03S04b  C2004 09 25.03501 03 16 33.74 +21 38 58.8          21.0 N ET044941
    CK03S04b  C2004 09 25.04074 03 16 33.72 +21 38 57.2          20.9 N ET044941
    CK03S04b  C2004 09 25.04646 03 16 33.71 +21 38 55.0          21.0 N ET044941
    CK03S04b  C2004 10 09.04407 03 13 57.91 +19 38 05.6          20.8 T ET044941
    CK03S04b  C2004 10 09.04782 03 13 57.85 +19 38 03.5          20.9 T ET044941
    CK03S04b  C2004 10 09.04981 03 13 57.83 +19 38 02.5          21.1 T ET044941
    CK03S04b  C2004 10 09.05325 03 13 57.79 +19 38 00.5          21.0 T ET044941
    CK03S04b  C2004 10 09.05669 03 13 57.75 +19 37 58.5          21.0 T ET044941
    CK03S04b  C2004 10 09.05899 03 13 57.70 +19 37 56.9          20.9 T ET044941

Observer details:
941 Observatorio Pla D'Arguines.  Observer R. Ferrando.  0.36-m f/6.3
    Schmidt-Cassegrain + CCD.

Orbital elements:
    C/2003 S4-A (LINEAR)
Epoch 2004 June 4.0 TT = JDT 2453160.5
T 2004 May 26.61430 TT                                  MPC
q   3.8589677            (2000.0)            P               Q
z  +0.0254247      Peri.  154.44937     +0.87265534     -0.17317364
 +/-0.0000044      Node   224.55133     +0.25495348     +0.95902910
e   0.9018869      Incl.   40.60545     +0.41649896     -0.22421882
From 142 observations 2003 Sept. 26-2004 Oct. 9, mean residual 0".55.

    C/2003 S4-B (LINEAR)
Epoch 2004 June 4.0 TT = JDT 2453160.5
T 2004 May 26.62492 TT                                  MPC
q   3.8588878            (2000.0)            P               Q
z  +0.0254204      Peri.  154.45174     +0.87264540     -0.17321765
 +/-0.0000044      Node   224.55181     +0.25499976     +0.95901754
e   0.9019055      Incl.   40.60528     +0.41649145     -0.22423428
From 142 observations 2003 Sept. 26-2004 Oct. 9, mean residual 0".56.

     The "original" and "future" barycentric values of 1/a for C/2003 S4-A
are +0.025072 and +0.025583 (+/- 0.000004) AU^-1, respectively; those for
C/2003 S4-B are +0.025068 and +0.025578 AU^-1.

Brian G. Marsden             (C) Copyright 2004 MPC           M.P.E.C. 2004-T44

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