[Iaude] CBET 4513: 20180429 : 2008 CT_190

quai at eps.harvard.edu quai at eps.harvard.edu
Sun Apr 29 13:21:53 EDT 2018

                                                  Electronic Telegram No. 4513
Central Bureau for Astronomical Telegrams
Mailing address:  Hoffman Lab 209; Harvard University;
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Prepared using the Tamkin Foundation Computer Network

2008 CT_190
     K. S. Noll, Goddard Space Flight Center, NASA; W. M. Grundy, Lowell
Observatory; and S. D. Benecchi, Planetary Science Institute, report the
detection of a binary companion to the transneptunian object 2008 CT_190.
They observed 2008 CT_190 starting on 2012 May 18.97928 UT with the Wide Field
Camera 3 on the Hubble Space Telescope.  Three dithered observations were
made, two in the F606W filter bracketing one in the F814W filter.  The images
show a partially resolved binary with the components along an axis that is
aligned approximately east-west.  Point-spread-functoin fits yield a
consistent result for all three images with two components separated by
0".053 +/- 0".008 with the component to the upper right of the image (west)
being fainter by 0.4 +/- 0.3 mag.

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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2018 CBAT
2018 April 29                    (CBET 4513)              Daniel W. E. Green

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