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IAUC 9068: P/2009 Q2; C/2009 Q3

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IAUC number 

                                                  Circular No. 9068
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://www.cfa.harvard.edu/iau/cbat.html  ISSN 0081-0304
Phone 617-495-7440/7244/7444 (for emergency use only)


COMET P/2009 Q2 (LINEAR-NEAT)
     J. V. Scotti, Lunar and Planetary Laboratory, reports his
recovery of comet P/2003 XD_10 (cf. IAUC 8257) showing stellar
appearance on Spacewatch images obtained with the 1.8-m f/2.7
reflector at Kitt Peak (first observation tabulated below).

     2009 UT             R.A. (2000) Decl.       Mag.   Observer
     Aug. 27.39043    1 18 00.41   - 7 20 05.0   21.5   Scotti

     The indicated correction to the prediction on MPC 59598 is
Delta(T) = -0.10 day.  Additional astrometry by Scotti for Aug. 27,
28, and 29 -- together with orbital elements for epoch 2003 (and
those below), residuals, and an ephemeris -- appear on MPEC
2009-Q68.

                    Epoch = 2010 Feb. 13.0 TT
     T = 2010 Jan. 31.8363 TT         Peri. =  16.0938
     e = 0.416377                     Node  =  40.5285  2000.0
     q = 1.989593 AU                  Incl. =  13.4361
       a =  3.409038 AU    n = 0.1565872    P =   6.29 years


COMET C/2009 Q3 (LINEAR)
     J. V. Scotti, Lunar and Planetary Laboratory, reports his
recovery of comet P/2002 T1 (cf. IAUC 7983) showing a "soft"
appearance (no obvious coma or tail) on Spacewatch images obtained
with the 1.8-m f/2.7 reflector at Kitt Peak (first observation
tabulated below).

     2009 UT             R.A. (2000) Decl.       Mag.   Observer
     Aug. 28.49035    4 31 39.80   +25 09 34.5   21.1   Scotti

     The indicated correction to the prediction on MPC 56804 is
Delta(T) = +0.04 day.  Additional astrometry by Scotti for Aug. 28
and 29 -- together with orbital elements for epoch 2002 (and those
below), residuals, and an ephemeris -- appear on MPEC 2009-Q69.

                    Epoch = 2009 Sept. 6.0 TT
     T = 2009 Aug. 25.5302 TT         Peri. =   3.8270
     e = 0.639260                     Node  =  14.2249  2000.0
     q = 1.314740 AU                  Incl. =  21.3965
       a =  3.644561 AU    n = 0.1416564    P =   6.96 years

                      (C) Copyright 2009 CBAT
2009 August 29                 (9068)            Daniel W. E. Green

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