Electronic Telegram No. 2510 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 SUPERNOVA 2010iz IN UGC 3552 Further to CBET 2498, J. K. Kodros, W. Li, S. B. Cenko, and A. V. Filippenko report the LOSS discovery of an apparent supernova on unfiltered KAIT images: SN 2010 UT R.A. (2000.0) Decl. Mag. Offset 2010iz Oct. 16.55 6 49 50.94 +28 22 22.1 17.2 5".2 E, 5".9 N Nothing was visible at this position on a KAIT image from Mar. 22.18 UT (limiting mag 19.0). Following posting on the Central Bureau's unconfirmed- objects webpage, Markku Nissinen and Veli-Pekka Hentunen, Varkaus, Finland, write that they remotely used a 43-cm f/6.8 Global-Rent-a-Scope (GRAS) located near Nerpio, Spain, to obtain images (limiting mag 21.0) of 2010iz to derive position end figures 50s.93, 21".8 and magnitude V = 16.8 on Oct. 20.126. NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2010 CBAT 2010 October 20 (CBET 2510) Daniel W. E. Green