TITLE: GCN CIRCULAR NUMBER: 6515 SUBJECT: GRB 070612A: SARA detection of possible OT DATE: 07/06/12 08:20:57 GMT FROM: Adria C. Updike at Clemson U Adria C. Updike, Dieter H. Hartmann (Clemson University), Gary Henson (ETSU), Robert Mesler, Christina Bunker, and Jason Carson (ETSU/SARA REU program) report: We imaged the field of GRB 070612 (GCN 6509, Grupe et al.) beginning 1 hour and 17 minutes after the trigger (282006) with the SARA 0.9m at Kitt Peak under decent weather conditions and high airmass. We obtained 20 minutes of exposures in the R band before the target set. We detect a source at RA 08:05:28.533, Dec +37:16:09.57 (+/- 1") at an R-band magnitude of 17.16 +/- 0.17 calibrated relative to 5 USNO B1.0 stars. It appears that this coincides with a source in the SDSS images near this location (GCN 6510, Cool et. al), but appears significantly brighter than two nearby sources of similar magnitude. Thus, we identify this as a possible afterglow signature, however we cannot establish whether or not it is fading. We encourage further observations. The SARA Homepage can be found at: http://saraobservatory.org This message may be cited.