Electronic Telegram No. 3852
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 G2 = P/2005 JQ_5 (CATALINA)
     M. Masek, Liberec, Czech Republic, reports the recovery of comet
P/2005 JQ_5 (cf. IAUC 8531) on CCD images taken with a 0.3-m f/10 reflector
(astrometry tabulated below).  The comet shows central condensation in a faint
coma of diameter about 40", with no tail.

     2014 UT             R.A. (2000) Decl.       Mag.   Observer
     Apr.  9.38799   20 36 02.98   -15 22 31.6   18.7   Masek
           9.39693   20 36 06.17   -15 22 23.6   18.7     "
           9.40486   20 36 08.98   -15 22 16.8   18.7     "
          10.37102   20 41 56.45   -15 06 44.0   19.3     "
          10.38719   20 42 02.21   -15 06 27.8   19.2     "
          10.40400   20 42 08.17   -15 06 11.5   19.4     "

The indicated correction to the prediction by S. Nakano on MPC 75732 is
Delta(T) = -0.10 day.  The comet was missed at its 2009 return to perihelion.
Linked orbital elements by G. V. Williams from 558 observations spanning
2005 May 6-2014 Apr. 10 (mean residual 0".5):

                    Epoch = 2014 May  23.0 TT
     T = 2014 May  29.87908 TT        Peri. = 222.73982
     e = 0.6934656                    Node  =  95.80766 2000.0
     q = 0.8259015 AU                 Incl. =   5.69160
       a =  2.6943193 AU   n = 0.22285916   P =   4.42 years

                    Epoch = 2010 Jan.  4.0 TT
     T = 2009 Dec. 28.79920 TT        Peri. = 222.74287
     e = 0.6942277                    Node  =  95.83241 2000.0
     q = 0.8230894 AU                 Incl. =   5.69533
       a =  2.6918380 AU   n = 0.22316737   P =   4.42 years

                    Epoch = 2005 July  9.0 TT
     T = 2005 July 28.03406 TT        Peri. = 222.68363
     e = 0.6935919                    Node  =  95.86141 2000.0
     q = 0.8255909 AU                 Incl. =   5.69581
       a =  2.6944162 AU   n = 0.22284713   P =   4.42 years


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2014 CBAT
2014 April 10                    (CBET 3852)              Daniel W. E. Green