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IAUC 8438: P/2004 V5 = P/2003 YM_159; P/2004 V3; P/2004 V4

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IAUC number 

                                                  Circular No. 8438
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 P/2004 V5 = P/2003 YM_159 (LINEAR-HILL)
     While the initial report inferred that the discovery
of comet P/2003 YM_159 at Catalina was a team discovery
(thus the name 'LINEAR-Catalina' given on IAUC 8433),
it has since been determined that observer Rik Hill was alone
in discovering, measuring, and reporting the comet -- thereby
allowing his name to be used in place of the survey name (as
also approved by the Catalina team).  Consultation with the IAU
Committee on Small-Body Nomenclature has yielded the decision to
introduce for this comet the new principal designation P/2004 V5
and to replace the name 'LINEAR-Catalina' with 'LINEAR-Hill'.
The components A and B are defined as before.  The following
improved orbital elements from MPEC 2004-V79 are for component A, with the
preliminary elements for component B being well satisfied with
the same elements but with Delta(T) = +0.23 day.

                    Epoch = 2005 Mar. 11.0 TT
     T = 2005 Feb. 28.6935 TT         Peri. =  87.6836
     e = 0.445237                     Node  =  47.8590  2000.0
     q = 4.410971 AU                  Incl. =  19.3582
       a =  7.951091 AU    n = 0.0439606    P =  22.42 years


COMET P/2004 V3 (SIDING SPRING)
     Improved elliptical orbital elements from MPEC 2004-V77:

     T = 2004 Nov. 13.938 TT          Peri. = 322.759
     e = 0.45163                      Node  = 356.082   2000.0
     q = 3.94084 AU                   Incl. =  50.454
       a =  7.18647 AU     n = 0.051160     P =  19.3 years


COMET P/2004 V4 (NEAT)
     Improved elliptical orbital elements from MPEC 2004-V78:

     T = 2005 Jan. 31.1328 TT         Peri. = 347.0816
     e = 0.475536                     Node  = 103.7625  2000.0
     q = 1.920247 AU                  Incl. =  12.4600
       a =  3.661350 AU    n = 0.1406832    P =   7.01 years

                      (C) Copyright 2004 CBAT
2004 November 15               (8438)            Daniel W. E. Green

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