GCN Circular 7765
Adria C. Updike, Ginger Bryngelson, and Dieter H. Hartmann (Clemson University) report on behalf of the Clemson GRB Follow-Up Team: We observed the field of GRB 080515 (GCN 7721, Holland et al.) twice using the Kitt Peak 4m telescope + NEWFIRM in the J band under decent weather conditions. The first observation was performed 5 hours and 20 minutes after the burst; the second 29 hours and 20 minutes after the burst. We detect a fading source inside the XRT error circle (GCN 7762, Page et al.) at RA (J2000) = 00:12:39, Dec (J2000) = +32:34:41 (+/- 2 arcsec). We therefore conclude that this is the afterglow of GRB 080515. At 5.33 hours after the burst, the J-band magnitude of the afterglow was 16.4 +/- 0.1 mag (10 minute stack). 29.33 hours after the burst, the magnitude was at our detection limit near 20.7 mag (20 minute stack). All magnitudes were calibrated to the 2MASS catalog. An image of the afterglow can be found here http://www.ces.clemson.edu/~aupdike/GRB080515/080515.jpg . This message may be cited.