[IAUC] CBET 4114: 20150701 : (46829) 1998 OS14

[quai en eps.harvard.edu]

                                                  Electronic Telegram No. 4114
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


(46829) 1998 OS14
     P. Pravec, P. Kusnirak, K. Hornoch, and A. Galad, Ondrejov Observatory
and European Southern Observatory, La Silla, report that photometric
observations obtained during Feb. 12-Mar. 18 reveal that minor planet (46829)
is a binary system with an orbital period of 16.833 +/- 0.002 hr.  The
primary shows a period of 2.6236 +/- 0.0003 or 5.2483 +/- 0.0007 hr, and it
has a lightcurve amplitude of 0.12 mag at solar phases 0.4-3.4 deg, suggesting
a nearly spheroidal shape.  Mutual eclipse/occultation events that are 0.16-
to 0.36-magnitude deep indicate a secondary-to-primary mean-diameter ratio of
0.40 +/- 0.02.  The mean absolute magnitude of the system is H = 15.25 +/-
0.03, the slope parameter G = 0.30 +/- 0.02, and the color index in the
Johnson-Cousins photometric system is (V-R) = 0.470 +/- 0.016.


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2015 CBAT
2015 July 1                      (CBET 4114)              Daniel W. E. Green