• MPC Preparation (Info)

    • MPEC 2007-L27 : COMET C/2007 JA21 (LINEAR)

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    Read MPEC 2007-L26 Read MPEC 2007-L28 

    M.P.E.C. 2007-L27                                Issued 2007 June 8, 17:49 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/2007 JA21 (LINEAR)

Observations:
    CK07J21A  C2007 05 25.71771 17 21 02.61 +52 45 20.2          18.3 T EL027361
    CK07J21A  C2007 06 06.36437 17 04 59.20 +51 53 20.2          19.0 N EL027850
    CK07J21A  C2007 06 06.38153 17 04 57.60 +51 53 14.9          19.0 N EL027850
    CK07J21A  C2007 06 07.15186 17 03 55.21 +51 48 40.1          19.5 N EL027850
    CK07J21A  C2007 06 07.19037 17 03 51.93 +51 48 25.2          19.5 N EL027850
    CK07J21A  C2007 06 07.21725 17 03 49.74 +51 48 15.2          19.6 N EL027850
    CK07J21A  C2007 06 08.26181 17 02 25.07 +51 41 49.2          19.0 T EL027673
    CK07J21A  C2007 06 08.26875 17 02 24.48 +51 41 45.7                 EL027673
    CK07J21A  C2007 06 08.27569 17 02 23.96 +51 41 43.5                 EL027673
    CK07J21A  C2007 06 08.28264 17 02 23.41 +51 41 41.4                 EL027673

Observer details:
361 Sumoto.  Observer S. Nakano.  0.25-m f/4.8 reflector + CCD.
673 Table Mountain Observatory, Wrightwood.  Observer D. Mayes.  0.6-m f/16
    Cassegrain + CCD.
850 Cordell-Lorenz Observatory, Sewanee.  Observers D. T. Durig, D. S. Hardage.
    0.30-m f/6 Ritchey-Chretien + CCD.

Orbital elements:
    C/2007 JA21 (LINEAR)
T 2006 Nov. 12.739 TT                                   MPC
q   5.36314              (2000.0)            P               Q
                   Peri.   93.512       -0.028124       -0.412865
                   Node    65.555       -0.447035       -0.809377
e   1.0            Incl.   89.825       +0.894074       -0.417674
From 74 observations 2007 May 11-June 8.

Ephemeris:
    C/2007 JA21 (LINEAR)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2007 05 30    17 15.12   +52 30.0    5.210    5.560   105.1    10.1  19.0
2007 06 09    17 01.42   +51 37.1    5.223    5.580   105.5    10.1  19.1
2007 06 19    16 48.49   +50 21.0    5.250    5.601   105.1    10.1  19.1
2007 06 29    16 36.93   +48 43.8    5.294    5.623   103.7    10.1  19.1
2007 07 09    16 27.13   +46 49.0    5.354    5.645   101.5    10.2  19.2
2007 07 19    16 19.28   +44 40.7    5.429    5.668    98.5    10.2  19.2
2007 07 29    16 13.42   +42 23.1    5.518    5.693    94.8    10.2  19.3

     Further observations of this comet are desirable.

Brian G. Marsden             (C) Copyright 2007 MPC           M.P.E.C. 2007-L27

    Read MPEC 2007-L26 Read MPEC 2007-L28

    MPEC number:

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