• Processing (Info)

    • MPEC 2007-K17 : COMET C/2007 JA21 (LINEAR)

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    Read MPEC 2007-K16 Read MPEC 2007-K18 

    M.P.E.C. 2007-K17                                Issued 2007 May 18, 15:49 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 14.29398 17 36 25.89 +53 05 43.7          18.8 T EK017673
    CK07J21A  C2007 05 14.30451 17 36 25.06 +53 05 43.4                 EK017673
    CK07J21A  C2007 05 14.32407 17 36 23.52 +53 05 42.7                 EK017673
    CK07J21A  C2007 05 14.34132 17 36 22.18 +53 05 42.0                 EK017673
    CK07J21A  C2007 05 14.35914 17 36 20.77 +53 05 41.2                 EK017673
    CK07J21A  C2007 05 14.97688 17 35 32.54 +53 05 18.5          18.6 T EK017561
    CK07J21A  C2007 05 14.98050 17 35 32.14 +53 05 17.0          18.9 T EK017561
    CK07J21A  C2007 05 14.98412 17 35 31.90 +53 05 18.5          19.4 T EK017561
    CK07J21A  C2007 05 16.96147 17 32 55.89 +53 03 33.8          18.9 N EK017213
    CK07J21A  C2007 05 16.96386 17 32 55.69 +53 03 33.4          19.0 N EK017213
    CK07J21A  C2007 05 16.96719 17 32 55.40 +53 03 33.1          19.2 N EK017213
    CK07J21A  C2007 05 18.41490 17 30 59.47 +53 01 45.1          18.7 T EK017703
    CK07J21A  C2007 05 18.41984 17 30 59.11 +53 01 46.4          18.9 T EK017703
    CK07J21A  C2007 05 18.42477 17 30 58.78 +53 01 44.9          18.7 T EK017703
    CK07J21A  C2007 05 18.42970 17 30 58.24 +53 01 44.5          18.7 T EK017703

Observer details:
213 Observatorio Montcabre.  Observer R. Naves.  Measurer M. Campas.  0.30-m
    f/10 Schmidt-Cassegrain + CCD.
561 Piszkesteto Stn. (Konkoly).  Observer J. Kelemen.  0.6-m Schmidt + CCD.
673 Table Mountain Observatory, Wrightwood.  Observer J. Young.  0.61-m f/16
    Cassegrain + CCD.
703 Catalina Sky Survey.  Observer R. E. Hill.  Measurers E. C. Beshore,
    A. Boattini, A. R. Gibbs, A. D. Grauer, R. E. Hill, R. A. Kowalski,
    S. M. Larson.  0.68-m Schmidt + CCD.

Orbital elements:
    C/2007 JA21 (LINEAR)
T 2006 Nov. 26.248 TT                                   MPC
q   5.38796              (2000.0)            P               Q
                   Peri.   95.068       -0.039135       -0.412510
                   Node    65.521       -0.468923       -0.796707
e   1.0            Incl.   89.840       +0.882372       -0.441693
From 44 observations 2007 May 11-18.

Ephemeris:
    C/2007 JA21 (LINEAR)
Date    TT    R. A. (2000) Decl.     Delta      r     Elong.  Phase   m1    m2
2007 05 10    17 41.89   +53 06.1    5.228    5.524   101.8    10.3  19.0
2007 05 20    17 28.86   +52 59.2    5.212    5.541   103.8    10.2  19.0
2007 05 30    17 15.11   +52 30.0    5.208    5.558   105.1    10.1  19.0
2007 06 09    17 01.40   +51 37.0    5.219    5.577   105.5    10.1  19.1
2007 06 19    16 48.45   +50 20.8    5.245    5.596   105.1    10.1  19.1
2007 06 29    16 36.86   +48 43.5    5.288    5.616   103.7    10.1  19.1
2007 07 09    16 27.04   +46 48.4    5.346    5.638   101.5    10.2  19.2
2007 07 19    16 19.17   +44 39.7    5.420    5.660    98.5    10.2  19.2
2007 07 29    16 13.29   +42 21.7    5.507    5.682    94.8    10.3  19.3

     Further observations of this comet are desirable.

Brian G. Marsden             (C) Copyright 2007 MPC           M.P.E.C. 2007-K17

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    MPEC number:

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