IAU Electronic Telegram No. 4612

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/2019 E1 = P/2003 L1 (SCOTTI)
     E. Schwab, Egelsbach, Germany, reports the recovery of comet P/2003 L1
(cf. IAUCs 8145, 8153) on CCD images obtained by D. Abreu with the 1.0-m f/4.4
reflector at the European Space Agency's Optical Ground Station at Tenerife,
Spain (astrometry tabulated below).  The comet shows a faint tail extending
about 10" in p.a. 300 degrees in what is apparently a stacked image totalling
600 s of exposure time.

     2019 UT             R.A. (2000) Decl.       Mag.   Observer
     Mar.  9.10987   11 35 12.12   - 6 40 13.0   20.3   Abreu
           9.11741   11 35 11.92   - 6 40 11.7   20.3     "
           9.12493   11 35 11.70   - 6 40 10.3   20.3     "
          10.09125   11 34 46.85   - 6 37 09.7   20.4     "
          10.09879   11 34 46.66   - 6 37 08.0   20.3     "
          10.10633   11 34 46.44   - 6 37 06.7   20.2     "

The indicated correction to the prediction by S. Nakano in the ICQ's 2019
Comet Handbook is Delta(T) = -0.17 day.  The following linked orbital elements
by G. V. Williams, from 75 observations spanning 2002 Apr. 5-2019 Mar. 10
(mean residual 0".4), appear on MPEC 2019-E80.

                    Epoch = 2020 July 10.0 TT
     T = 2020 July 11.30192 TT        Peri. = 354.97025
     e = 0.2527396                    Node  = 226.05927 2000.0
     q = 5.0167158 AU                 Incl. =   9.02208
       a =  6.7134778 AU   n = 0.05666080   P =  17.4 years


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2019 CBAT
2019 March 10                    (CBET 4612)              Daniel W. E. Green