Electronic Telegram No. 595 Central Bureau for Astronomical Telegrams INTERNATIONAL ASTRONOMICAL UNION M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A. IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions) CBAT@CFA.HARVARD.EDU (science) URL http://cfa-www.harvard.edu/iau/cbat.html PSR 0833-45 C. S. Flanagan, Johannesburg Planetarium; and S. J. Buchner, Hartebeesthoek Radio Astronomy Observatory (HRAO), report that an increase in the rotation frequency of PSR 0833-45 (cf. IAUC 8730) of magnitude [Delta(nu)]/nu = +2.62 x 10^{-6} has been observed from the HBAO, with the "glitch" occurring on Aug. 12.93 UT. Ten hours of observations, commencing six hours after the event, indicate an accompanying fractional increase in the spin-down rate of +0.23 +/- 0.04. NOTE: These 'Central Bureau Electronic Telegrams' are sometimes superseded by text appearing later in the printed IAU Circulars. (C) Copyright 2006 CBAT 2006 August 14 (CBET 595) Daniel W. E. Green