IAU Electronic Telegram No. 3925

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/2014 O2 = P/1997 T3 (Lagerkvist-Carsenty)
     E. Schwab reports the recovery of comet P/1997 T3 (cf. IAUC 6754) on
images taken by P. Ruiz with the European Space Agency's Optical Ground
Station 1.0-m f/4.4 reflector at Tenerife; measurers assisting Ruiz
included  E. Schwab, D. Koschny, M. Micheli, and M. Busch. The observations
on July 29 and 30 show a nearly stellar object with no tail.

     2014 UT             R.A. (2000) Decl.       Mag.   Observer
     July 29.08228   00 56 44.66   +00 51 23.4   20.0   Ruiz
          29.11716   00 56 44.97   +00 51 24.1   19.9
          29.17448   00 56 45.53   +00 51 25.2   20.3
          29.20174   00 56 45.79   +00 51 25.6   20.1
          30.09233   00 56 54.48   +00 51 40.5   20.3
          30.13069   00 56 54.82   +00 51 40.9   20.4
          30.18739   00 56 55.32   +00 51 41.9   20.3

The indicated correction to the prediction by B. G. Marsden on MPC 79348 is
Delta(T) = -1.28 days.  The following linked orbital elements by G. V. Williams
are from 171 observations spanning 1997 Oct. 05-2014 July 30 (mean residual
0".6); additional orbital elements and an ephemeris appear on MPEC 2014-O65.

                    Epoch = 1998 Mar.  8.0 TT
     T = 1998 Mar. 11.25072 TT        Peri. = 334.20425
     e = 0.3653686                    Node  =  63.19894 2000.0
     q = 4.2401820 AU                 Incl. =   4.83533
       a =  6.6813301 AU   n = 0.05707024   P =  17.270 years

                    Epoch = 2015 May  18.0 TT
     T = 2015 May   7.35857 TT        Peri. = 334.05878
     e = 0.3633529                    Node  =  63.13042 2000.0
     q = 4.2257220 AU                 Incl. =   4.84765
       a =  6.6374636 AU   n = 0.05763693   P =  17.100 years


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2014 CBAT
2014 July 30                     (CBET 3925)              Michael Rudenko