Electronic Telegram No. 2203 Central Bureau for Astronomical Telegrams INTERNATIONAL ASTRONOMICAL UNION CBAT Director: Daniel W. E. Green; Room 209; Dept. of Earth and Planetary Sciences; Harvard University; 20 Oxford St.; Cambridge, MA 02138; U.S.A. e-mail: cbat@iau.org; cbatiau@eps.harvard.edu URL http://www.cfa.harvard.edu/iau/cbat.html SUPERNOVA 2010ak IN MCG +03-41-142 Further to CBET 2177, J. Rex, S. B. Cenko, W. Li, and A. V. Filippenko, University of California, report the LOSS discovery of an apparent supernova on unfiltered KAIT images: SN 2010 UT R.A. (2000.0) Decl. Mag. Offset 2010ak Mar. 11.55 16 10 50.01 +17 58 36.1 18.2 7".5 W, 7".3 N Additional KAIT magnitudes for 2010ak in MCG +03-41-142: 2009 Aug. 20.20 UT, [19.2; 2010 Mar. 12.45, 18.1. NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2010 CBAT 2010 March 13 (CBET 2203) Daniel W. E. Green