Electronic Telegram No. 3839
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 D2 (CATALINA-PANSTARRS) = 2005 EL_284
     S. Nakano, Sumoto, Japan, writes that he has identified minor planet 2005
EL_284 (cf. MPS 130298) with comet P/2014 D2 (cf. CBET 3818).  The residuals
in 2005 were +0.03 deg off from a prediction by Nakano from the 2014 orbit,
with a Delta(T) correction of +0.13 day.  The object was reported on single
nights at three different observatories (only) in 2005, including on images
taken by M. E. Van Ness with the LONEOS 0.59-m Schmidt telescope on Mar. 11,
via the LINEAR survey on Mar. 17, and by G. Garradd with the Uppsala Schmidt
telescope at Siding Spring on July 11.  The March observations from 2005 are
tabulated below:

     2005 UT             R.A. (2000) Decl.       Mag.   Observer
     Mar. 11.35901   11 48 56.64   -14 36 43.0   17.9   Van Ness
          11.37609   11 48 56.05   -14 36 41.3            "
          11.39313   11 48 55.34   -14 36 37.1            "
          11.41019   11 48 54.73   -14 36 35.4            "
          17.39136   11 45 07.15   -14 19 10.7   18.5   LINEAR
          17.40198   11 45 06.63   -14 19 10.7   19.1     "
          17.42322   11 45 05.96   -14 19 06.2   19.0     "
          17.43386   11 45 05.42   -14 19 04.2   19.2     "

All of the 2005 astrometry, along with the following linked orbital elements
by G. V. Williams (from 75 observations spanning 2005 Mar. 11-2014 Mar. 27),
appear on MPEC 2014-F71.

                    Epoch = 2005 Dec. 16.0 TT
     T = 2006 Jan.  2.03469 TT        Peri. = 323.53489
     e = 0.2825930                    Node  = 271.67554 2000.0
     q = 3.1444413 AU                 Incl. =  10.46798
       a =  4.3830645 AU   n = 0.10740816   P =   9.18 years

                    Epoch = 2015 Feb. 27.0 TT
     T = 2015 Feb. 23.28239 TT        Peri. = 323.50940
     e = 0.2821892                    Node  = 271.68074 2000.0
     q = 3.1395906 AU                 Incl. =  10.47984
       a =  4.3738416 AU   n = 0.10774807   P =   9.15 years


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2014 CBAT
2014 March 29                    (CBET 3839)              Daniel W. E. Green