TITLE: GCN GRB OBSERVATION REPORT NUMBER: 5566 SUBJECT: GRB 060912B: Watcher observations DATE: 06/09/13 00:07:52 GMT FROM: John French at UCD,Ireland J.French (UCD Dublin), P.Kubanek (AsU AV CR Ondrejov & ISDC Versoix), and Martin Jelinek (IAA Granada) report on behalf of the Watcher collaboration: The Watcher 0.4 m telescope, located at the Boyden Observatory, South Africa, began observing the location of GRB 060912B at 17:34:44 UT (60s after the burst). We detect a bright source (Rmag = 12.1+/-0.2) at RA 18:05:00.005, DEC -19:51:42.37 J2000, which is present in USNO-B1.0 (as U0675_24058876 with coordinate end figures 0.005 and 42.37), but significantly brighter than expected. Unfiltered images, calibrated relative to USNO, give an approximate Rmag = 12.1+/-0.2 for the source, as opposed to the value of 14.4 quoted in the catalog. The object is not present in Simbad as a known variable star. We do not, however, expect that this source is associated with GRB 060912B due to the absence of significant decay up to T0+4hrs. Finding charts can be found at: http://bermuda.ucd.ie/~jfrench/060912/charts.html