GCN Circular 9920
Adria C. Updike, Dieter H. Hartmann (Clemson University), Brian Murphy (Butler University), and Kenneth Rumstay (Valdosta State University) report: We observed the field of GRB 090915 (Cummings & Markwardt GCN 9912, Fermi-GBM trigger 274721737) using the 0.9m SARA telescope located at Kitt Peak National Observatory beginning 44173 seconds after the burst and continuing for about half an hour. Observations were carried out under good weather conditions at high airmass. In 21 minutes of stacked exposures, we marginally detect a source within the XRT error circle (Beardmore, Page, & Sakamoto, GCN 9914) at R ~ 20.5 +/- 0.3 (as compared to field stars using the USNO B1.0 catalog). The object is not found in the DSS catalog. Variability can not be established from these single-epoch observations. It is likely that the above source is the same identified by Hoversten & Sakamoto (GCN 9918). To establish the decay, follow-up observations are encouraged. This message may be cited.