Central Bureau for Astronomical Telegrams

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IAUC 8145: C/2003 L1; P/2003 K2; C/2003 K4

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IAUC number 

                                                  Circular No. 8145
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)
CBAT@CFA.HARVARD.EDU (science)
URL http://cfa-www.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7440/7244/7444 (for emergency use only)


COMET C/2003 L1 (SCOTTI)
     J. V. Scotti, Lunar and Planetary Laboratory, University of
Arizona, reports the discovery of a comet on CCD images taken with
the Spacewatch 0.9-m f/3 reflector at Kitt Peak (discovery
observation below), showing a coma of diameter 6" and a faint tail
about 0'.62 long in p.a. 273 deg.  Images taken by A. S. Descour on
June 5.3 UT with the 1.8-m f/2.7 Spacewatch reflector also show a
tail, and June 7.2 images by Scotti with the larger instrument show
the tail 0'.30 long in p.a. 273 deg.

     2003 UT             R.A. (2000) Decl.        m1
     June  4.20655   14 48 10.53   -15 24 45.0   19.7

The available astrometry, the following preliminary parabolic
orbital elements, and an ephemeris appear on MPEC 2003-L33.  The
comet is very probably of short period.

     T = 2002 Jan. 11.952 TT          Peri. = 270.575
                                      Node  = 226.498   2000.0
     q = 2.66888 AU                   Incl. =  12.403


COMET P/2003 K2 (CHRISTENSEN)
     This comet appears to be of short period, the following
orbital elements taken from MPEC 2003-L31:

     T = 2003 Apr.  8.059 TT          Peri. = 346.655
     e = 0.84062                      Node  =  93.550   2000.0
     q = 0.55568 AU                   Incl. =  10.152
       a =  3.48647 AU     n = 0.151400     P =   6.51 years


COMET C/2003 K4 (LINEAR)
     Improved parabolic orbital elements from MPEC 2003-L29:

     T = 2004 Oct. 13.497 TT          Peri. = 198.563
                                      Node  =  18.748   2000.0
     q = 1.02128 AU                   Incl. = 134.279

                      (C) Copyright 2003 CBAT
2003 June 7                    (8145)            Daniel W. E. Green

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