[IAUC] CBET 3922: 20140713 : COMET P/2014 M5 = P/2003 O3 (LINEAR)

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                                                  Electronic Telegram No. 3922
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 en eps.harvard.edu (alternate cbat en iau.org)
URL http://www.cbat.eps.harvard.edu/index.html
Prepared using the Tamkin Foundation Computer Network


COMET P/2014 M5 = P/2003 O3 (LINEAR)
     H. Sato, Tokyo, Japan, reports his recovery of comet P/2003 O3 (cf. IAUC
8174) on CCD images obtained with iTelescope equipment using luminance filters
at Siding Spring (astrometry tabulated below).  The observations on June 21
were made with a 0.43-m f/6.8 astrograph, showing a nearly stellar object
with no tail in fourteen stacked 30-s exposures; the w-band magnitude was
measured within a circular aperture of radius 3".9.  The remaining
observations were made with a 0.5-m f/6.8 astrograph; on July 8, a strongly
condensed round coma 10" in diameter was noted, while on July 11, it again
appeared nearly stellar.

     2014 UT             R.A. (2000) Decl.       Mag.   Observer
     June 21.77337    0 26 14.27   - 3 11 49.3          Sato
          21.77582    0 26 14.79   - 3 11 44.6            "
          21.77826    0 26 15.29   - 3 11 40.3   19.8     "
     July  8.81416    1 23 19.31   + 5 41 22.1            "
           8.81563    1 23 19.58   + 5 41 25.4            "
           8.81709    1 23 19.89   + 5 41 28.7   19.3     "
          11.81690    1 33 12.82   + 7 14 54.1            "
          11.82084    1 33 13.53   + 7 15 01.2   19.4     "

The indicated correction to the prediction by S. Nakano in the ICQ's 2014
Comet Handbook is Delta(T) = +0.04 day.  Note that the comet was missed at its
2009 return to perihelion.  The following linked orbital elements by G. V.
Williams are from 253 observations spanning 2003 July 30-2014 July 11 (mean
residual 0".6); additional orbital elements and an ephemeris appear on MPEC
2014-N76.

                    Epoch = 2009 Feb. 18.0 TT
     T = 2009 Jan. 30.03361 TT        Peri. =   0.69062
     e = 0.5984580                    Node  = 341.48977 2000.0
     q = 1.2467447 AU                 Incl. =   8.36562
       a =  3.1048928 AU   n = 0.18014995   P =   5.47 years

                    Epoch = 2014 Aug. 11.0 TT
     T = 2014 July 24.75762 TT        Peri. =   0.74768
     e = 0.5970468                    Node  = 341.46199 2000.0
     q = 1.2531849 AU                 Incl. =   8.34884
       a =  3.1100014 AU   n = 0.17970626   P =   5.48 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 13                     (CBET 3922)              Daniel W. E. Green