IAU Electronic Telegram No. 4539

Central Bureau for Astronomical Telegrams
Mailing address: 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/2018 P2 = P/2001 T3 (NEAT)
     E. Schwab, Egelsbach, Germany, reports his recovery of comet P/2001 T3
(cf. IAUC 7733) on CCD images obtained by P. Ruiz on Aug. 10.2 UT with
a 1.0-m f/4.4 reflector at the European Space Agency's Optical Ground Station,
Tenerife, Spain; the comet shows a faint tail extending about 10" in p.a.
270 degrees.  M. Micheli reported confirming CCD astrometry from observations
obtained on Aug. 12.3 by F. Monteiro and five other observers with a 1.0-m
f/7 reflector at the Observatorio Astronomico do Sertao de Itaparica at
Nova Itacuruba, Brazil.

     2018 UT             R.A. (2000) Decl.       Mag.   Observer
     Aug. 10.19601    5 51 36.15   +27 48 20.5   18.8   Ruiz
          10.20355    5 51 37.01   +27 48 23.0   18.8     "
          10.21109    5 51 37.86   +27 48 26.1   19.0     "
          12.31315    5 55 38.41   +28 01 00.4   20.8   Monteiro
          12.31562    5 55 38.71   +28 01 00.9   20.4     "

     The indicated correction to the prediction by G. V. Williams on MPC 94679
is Delta(T) = -1.16 days.  The following linked orbital elements by G. V.
Williams (from 143 observations spanning 2001 Aug. 20-2018 Aug. 12; mean
residual 0".5) and an ephemeris appear on MPEC 2018-P81.

                    Epoch = 2018 June 11.0 TT
     T = 2018 June  9.50134 TT        Peri. = 356.77946
     e = 0.6144070                    Node  =  55.16339 2000.0
     q = 2.4853397 AU                 Incl. =  19.39738
       a =  6.4455008 AU   n = 0.06023086   P =  16.36 years


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                         (C) Copyright 2018 CBAT
2018 August 13                   (CBET 4539)              Daniel W. E. Green