• Preparing MPCs (Info)

  • MPEC 2009-J14 : COMET C/2002 S7 = 2008 N4 = 1996 X3 (SOHO)

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    Read MPEC 2009-J13 Read MPEC 2009-J15


    M.P.E.C. 2009-J14                                Issued 2009 May 4, 03:19 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.
    
                 Prepared using the Tamkin Foundation Computer Network
    
                                  MPC@CFA.HARVARD.EDU
              URL http://www.cfa.harvard.edu/iau/mpc.html  ISSN 1523-6714
    
                      COMET C/2002 S7 = 2008 N4 = 1996 X3 (SOHO)
    
    Orbital elements:
    Epoch 1996 Dec. 23.0 TT = JDT 2450440.5
    T 1996 Dec. 6.12338 TT                                  MPC
    q   0.0490795            (2000.0)            P               Q
    n   0.17006641     Peri.   51.39986     -0.19306219     -0.96411157
    a   3.2264407      Node    50.72645     +0.81106449     -0.26134311
    e   0.9847883      Incl.   13.61683     +0.55217875     +0.04678309
    P   5.80
    
    Epoch 2002 Sept. 3.0 TT = JDT 2452520.5
    T 2002 Sept. 21.06697 TT                                MPC
    q   0.0482438            (2000.0)            P               Q
    n   0.17039402     Peri.   51.58326     -0.19352578     -0.96417362
    a   3.2223038      Node    50.56599     +0.81094498     -0.26128641
    e   0.9850282      Incl.   13.58602     +0.55219201     +0.04581097
    P   5.78
    
    Epoch 2008 June 23.0 TT = JDT 2454640.5
    T 2008 July 4.38322 TT                                  MPC
    q   0.0481635            (2000.0)            P               Q
    n   0.17042230     Peri.   52.38575     -0.19486007     -0.96455411
    a   3.2219474      Node    49.82469     +0.81045099     -0.26052514
    e   0.9850514      Incl.   13.46737     +0.55244796     +0.04197640
    P   5.78
    Residuals in seconds of arc
    961205 249(89.2- 52.2-)Y  020920 249(19.4+ 29.8-)Y  020921 249  1.4-  7.3+ Y
    961205 249  9.0- 18.1- Y  020920 249 18.3+ 15.8+ Y  020921 249 15.1- 18.9+ Y
    961205 249 19.5-  2.3- Y  020920 249(63.1+ 18.4+)Y  020921 249  7.2-  9.7+ Y
    961206 249(37.5-  7.3+)Y  020921 249 (5.9- 24.1-)Y  080704 249  5.2+  5.2+ Y
    961206 249  3.8+ 14.3- Y  020921 249(29.1-  6.0-)Y  080704 249  4.3+  7.1+ Y
    961206 249  6.4+ 12.3- Y  020921 249(29.1- 40.7+)Y  080704 249  0.2+  5.0+ Y
    020920 249(28.1- 16.2-)Y  020921 249  9.1+ 16.0+ Y  080704 249  2.0+  4.4+ Y
    020920 249  5.8+  8.7- Y  020921 249(13.1- 51.3+)Y  080704 249  5.7-  5.0+ Y
    020920 249  7.6+  2.3+ Y  020921 249  9.3+ 16.9- Y  080704 249  3.3-  7.2+ Y
    020920 249(30.0-  7.3+)Y  020921 249  4.6- 17.7- Y  080704 249  5.8+  0.5+ Y
    020920 249(15.5- 20.7+)Y  020921 249(22.0+ 32.0-)Y  080704 249  4.3+  4.0+ Y
    020920 249 13.2-  9.7- Y  020921 249(29.2- 21.4-)Y  080704 249  7.6-  1.3- Y
    020920 249(13.6+ 30.7-)Y  020921 249  2.1-  6.4- Y  080704 249(15.2+ 21.0+)Y
    020920 249  9.7-  7.8+ Y  020921 249  1.6- 12.7- Y  080704 249(33.1+ 41.7+)Y
    020920 249  9.9-  9.5- Y  020921 249  4.4- 10.3- Y  080704 249(23.9- 14.0+)Y
    
         Following up on MPEC 2008-P60 (where the comets C/1996 S5, C/1996 S4 and
    C/1996 S3 should have been given as C/1996 X5, C/1996 X4 and C/1996 X3),
    R. Kracht has suggested that the correct linkage for C/2002 S7 = C/2008 N4 is
    with C/1996 X3, on the assumption that the comet was affected by small
    nongravitational forces (see also MPEC 2009-H56).  The above nongravitational
    linkage, with parameters A1 = 0.0000, A2 = +0.0027, is based on Kracht's work.
    
    Brian G. Marsden             (C) Copyright 2009 MPC           M.P.E.C. 2009-J14
    

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