TITLE: GCN CIRCULAR NUMBER: 9358 SUBJECT: GRB 090515: KAIT optical upper limits DATE: 09/05/15 05:57:53 GMT FROM: Ryan Chornock at UC Berkeley W. Li, R. Chornock, and A. V. Filippenko (UC Berkeley) report on behalf of the KAIT GRB team: The Katzman Automatic Imaging Telescope (KAIT) at Lick Observatory responded to the Swift trigger of GRB 090515 (Beardmore et al., GCN 9356) and began a sequence of filtered and unfiltered 20s images followed by a set of three 180s unfiltered images. We detect no new source within the XRT error circle (Beardmore et al., GCN 9356). Individual unfiltered 20s exposures starting at 04:59:09 UT have 3-sigma limiting magnitudes (calibrated to USNO B1) of about mag 19.1. Our combined set of 3x180s unfiltered images has an upper limit of about mag 20.5 at a midpoint of 05:19:47 UT.