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IAUC 7168: C/1999 J3

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                                                  Circular No. 7168
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
BMARSDEN@CFA.HARVARD.EDU or DGREEN@CFA.HARVARD.EDU (science)
URL http://cfa-www.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7244/7440/7444 (for emergency use only)


COMET C/1999 J3 (LINEAR)
     The following additional precise CCD observations have been
reported:

     1999 UT             R.A. (2000) Decl.        m1    Observer
     May  14.13090   15 39 22.13   +73 47 31.6   16.8   DeGraff
          14.14063   15 39 18.73   +73 47 47.6   17.0     "
          14.69829   15 35 57.32   +74 02 52.6   17.8   Oribe
          14.70523   15 35 54.86   +74 03 03.1            "
          14.71461   15 35 51.30   +74 03 19.0            "

D. R. DeGraff (Stull Observatory).  0.81-m f/4 reflector.
T. Oribe (Saji Observatory).  1.03-m f/4.2 reflector.  Hint of tail
  to the southwest; 10" coma.  Communicated by S. Nakano, Sumoto,
  Japan.

     Preliminary parabolic orbital elements by the undersigned from
11 observations, May 12-14:

     T = 1999 Sept.23.675 TT          Peri. = 154.749
                                      Node  = 230.487   2000.0
     q = 1.14768 AU                   Incl. = 102.370

1999 TT     R. A. (2000) Decl.   Delta     r    Elong. Phase    m1
May  12    15 51.2    +72 47.0   2.077   2.294   89.0   26.1   17.2
     14    15 40.1    +73 43.9   2.075   2.272   87.7   26.4   17.1
     16    15 27.7    +74 36.7   2.073   2.249   86.4   26.7   17.1
     18    15 13.9    +75 25.0   2.071   2.226   85.1   26.9   17.1
     20    14 58.7    +76 08.2   2.071   2.204   83.8   27.2   17.0
     22    14 42.0    +76 45.8   2.071   2.181   82.4   27.4   17.0
     24    14 24.0    +77 17.4   2.071   2.158   81.0   27.6   16.9
     26    14 04.8    +77 42.6   2.072   2.136   79.6   27.8   16.9
     28    13 44.8    +78 01.1   2.073   2.113   78.2   28.0   16.8
     30    13 24.3    +78 12.7   2.074   2.090   76.8   28.2   16.8
June  1    13 03.7    +78 17.5   2.075   2.068   75.4   28.3   16.7
      3    12 43.4    +78 15.9   2.077   2.045   74.0   28.5   16.7
      5    12 23.9    +78 08.1   2.079   2.023   72.6   28.6   16.6
      7    12 05.4    +77 54.9   2.081   2.000   71.2   28.7   16.6
      9    11 48.1    +77 36.8   2.082   1.978   69.9   28.8   16.6
     11    11 32.2    +77 14.6   2.084   1.955   68.5   28.9   16.5

                      (C) Copyright 1999 CBAT
1999 May 14                    (7168)            Daniel W. E. Green

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