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IAUC 7998: P/2002 T5; Sats OF JUPITER

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                                                  Circular No. 7998
Central Bureau for Astronomical Telegrams
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
URL http://cfa-www.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7440/7244/7444 (for emergency use only)

     An apparently asteroidal object reported by LINEAR (discovery
observation given below), posted on the NEO Confirmation Page due
to unusual motion, has been found to be cometary in appearance.
D. T. Durig and J. A. K. Blackwood, University of the South,
Sewanee, TN, report that CCD images taken with a 0.30-m reflector
on Oct. 18.4 UT show the object to be diffuse with a hint of a tail
12"-15" long in p.a. 330 deg and a soft coma of diameter 5"-8".
Images taken by G. Hug, Eskridge, KS, also with a 0.30-m reflector
at about the same time, show a nearly stellar coma with extension
about 10"-15" long in p.a. about 280 deg.

     2002 UT             R.A. (2000) Decl.        m1
     Oct.  5.38947    4 44 17.33   -12 15 26.7   18.4

     Astrometry (Oct. 5-22), the following elliptical orbital
elements, and an ephemeris appear on MPEC 2002-U20.

     T = 2003 July  1.7593 TT         Peri. = 327.4640
     e = 0.438402                     Node  = 123.2783  2000.0
     q = 3.924792 AU                  Incl. =  30.9153
       a =  6.988610 AU    n = 0.0533480    P =  18.475 years

     The IAU Working Group on Planetary System Nomenclature has
approved the following new designations and names:

    Jupiter XVII    Callirrhoe  = S/1999 J 1
    Jupiter XVIII   Themisto    = S/1975 J 1  = S/2000 J 1
    Jupiter XIX     Magaclite   = S/2000 J 8
    Jupiter XX      Taygete     = S/2000 J 9
    Jupiter XXI     Chaldene    = S/2000 J 10
    Jupiter XXII    Harpalyke   = S/2000 J 5
    Jupiter XXIII   Kalyke      = S/2000 J 2
    Jupiter XXIV    Iocaste     = S/2000 J 3
    Jupiter XXV     Erinome     = S/2000 J 4
    Jupiter XXVI    Isonoe      = S/2000 J 6
    Jupiter XXVII   Praxidike   = S/2000 J 7

                      (C) Copyright 2002 CBAT
2002 October 22                (7998)            Daniel W. E. Green

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