Electronic Telegram No. 3751
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
CBAT Director:  Daniel W. E. Green; Hoffman Lab 209; Harvard University;
 20 Oxford St.; Cambridge, MA  02138; U.S.A.
e-mail:  cbatiau@eps.harvard.edu (alternate cbat@iau.org)
URL http://www.cbat.eps.harvard.edu/index.html
Prepared using the Tamkin Foundation Computer Network


COMET P/2013 X2 = P/2008 A2 (LINEAR)
     H. Sato, Tokyo, Japan reports his recovery of comet P/2008 A2 (cf. IAUC
8912) on luminance-filtered CCD exposures taken with iTelescope 0.51-m and
0.43-m astrographs near Mayhill, NM, U.S.A. (astrometry tabulated below), the
object appearing stellar on both nights in numerous stacked 60-s exposures.

     2013 UT             R.A. (2000) Decl.       Mag.   Observer
     Dec. 11.50976   11 14 31.19   + 6 44 24.9          Sato
          11.51295   11 14 31.67   + 6 44 18.7   20.2     "
          14.48507   11 21 04.15   + 5 19 08.1            "
          14.48706   11 21 04.40   + 5 19 04.5            "
          14.48906   11 21 04.67   + 5 19 01.0   19.5     "
          14.52541   11 21 09.32   + 5 17 57.5            "
          14.52905   11 21 09.80   + 5 17 50.7   20.6     "

The indicated correction to the prediction by B. G. Marsden on MPC 75731 is
Delta(T) = -0.24 day.  The following linked orbital elements by G. V. Williams
are from 148 observations spanning 2008 Jan. 13-2013 Dec. 14 (mean residual
0".5):

                    Epoch = 2014 Mar.  4.0 TT
     T = 2014 Mar.  3.22971 TT        Peri. = 235.37386
     e = 0.5943419                    Node  = 312.69068 2000.0
     q = 1.2999061 AU                 Incl. =  18.22658
       a =  3.2044375 AU   n = 0.17182105   P =   5.74 years


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2013 CBAT
2013 December 14                 (CBET 3751)              Daniel W. E. Green