• MPC Preparation (Info)

  • MPEC 2004-J71 : COMET C/2004 F4 (BRADFIELD)

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    M.P.E.C. 2004-J71                                Issued 2004 May 15, 14:42 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
    
                              COMET C/2004 F4 (BRADFIELD)
    
    Observations:
        CK04F040  C2004 05 10.75810 01 03 06.34 +41 06 57.1                 EJ071349
        CK04F040  C2004 05 10.75870 01 03 06.35 +41 06 58.6                 EJ071349
        CK04F040  C2004 05 10.77583 01 03 07.17 +41 07 35.9                 EJ071349
        CK04F040  C2004 05 10.77643 01 03 07.21 +41 07 37.2           8.6 T EJ071349
        CK04F040  C2004 05 11.77098 01 03 54.96 +41 42 49.7          11.9 N EJ071379
        CK04F040  C2004 05 11.77213 01 03 55.07 +41 42 52.7          12.1 N EJ071379
        CK04F040  C2004 05 11.77557 01 03 55.17 +41 43 00.2          12.1 N EJ071379
        CK04F040  C2004 05 12.06285 01 04 09.18 +41 52 51.8                 EJ071557
        CK04F040  C2004 05 12.06425 01 04 09.24 +41 52 55.0                 EJ071557
        CK04F040  C2004 05 12.06565 01 04 09.33 +41 52 57.7                 EJ071557
        CK04F040  C2004 05 12.06704 01 04 09.40 +41 53 00.6                 EJ071557
        CK04F040  C2004 05 12.06844 01 04 09.46 +41 53 03.6                 EJ071557
        CK04F040  C2004 05 12.07031 01 04 09.54 +41 53 07.6                 EJ071557
        CK04F040  C2004 05 14.74031 01 06 25.29 +43 20 32.9                 EJ071349
        CK04F040  C2004 05 14.74093 01 06 25.31 +43 20 34.3                 EJ071349
        CK04F040  C2004 05 14.74333 01 06 25.45 +43 20 38.9                 EJ071349
        CK04F040  C2004 05 14.74394 01 06 25.47 +43 20 40.0           9.4 T EJ071349
        CK04F040  C2004 05 15.05694 01 06 41.68 +43 30 22.2          14.1 N EJ071J87
        CK04F040  C2004 05 15.05988 01 06 41.83 +43 30 27.1          14.2 N EJ071J87
        CK04F040  C2004 05 15.10569 01 06 44.33 +43 31 53.4          13.0 N EJ071213
        CK04F040  C2004 05 15.10716 01 06 44.40 +43 31 56.2          13.1 N EJ071213
        CK04F040  C2004 05 15.10921 01 06 44.51 +43 32 00.2          13.0 N EJ071213
    
    Observer details:
    213 Observatorio Montcabre.  Observer R. Naves.  Measurer M. Campas.  0.30-m
        f/6.6 Schmidt-Cassegrain + CCD.
    349 Ageo.  Observer K. Kadota.  0.25-m f/5.0 reflector + CCD.
    379 Hamamatsu-Yuto.  Observer S. Wakuda.  0.25-m f/5.0 Schmidt-Cassegrain
        + CCD.
    557 Ondrejov.  Observer P. Kusnirak.  0.65-m f/3.6 reflector + CCD.
    J87 La Canada.  Observer J. Lacruz.  0.30-m f/3.3 Schmidt-Cassegrain + CCD.
    
    Orbital elements:
        C/2004 F4 (Bradfield)
    T 2004 Apr. 17.0902 TT                                  MPC
    q   0.168285             (2000.0)            P               Q
    z  +0.004040       Peri.  332.7912      -0.7929582      -0.0629426
                       Node   222.7777      -0.2528719      -0.8709376
    e   0.999320       Incl.   63.1646      -0.5543221      +0.4873458
    From 63 observations 2004 Apr. 23-May 15.
    
    Ephemeris:
        C/2004 F4 (Bradfield)
    Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
    2004 05 15    01 06.64   +43 28.7    1.397    0.874    38.5    46.1  10.1
    2004 05 25    01 15.37   +47 59.6    1.574    1.097    43.9    39.8  11.4
    2004 06 04    01 22.90   +51 40.3    1.719    1.303    49.0    36.0  12.3
    2004 06 14    01 28.09   +54 53.9    1.839    1.495    54.4    33.5  13.1
    2004 06 24    01 29.98   +57 50.3    1.935    1.678    60.1    31.7  13.7
    2004 07 04    01 27.55   +60 33.0    2.014    1.852    66.1    30.1  14.2
    2004 07 14    01 19.64   +63 00.8    2.077    2.018    72.4    28.7  14.6
    2004 07 24    01 04.97   +65 08.2    2.130    2.179    79.0    27.2  15.0
    
    Brian G. Marsden             (C) Copyright 2004 MPC           M.P.E.C. 2004-J71
    

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    MPEC number:

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    • 1997-B01 (the full form)
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    • B01 (the abbreviated form)