TITLE: GCN CIRCULAR NUMBER: 7879 SUBJECT: GRB 080613B: GROND Upper Limits DATE: 08/06/14 02:16:10 GMT FROM: Christian Clemens at MPE C. Clemens, A. Updike (Clemson University), T. Kruehler, J. Greiner, A. Kupcu Yoldas, A. Yoldas (all MPE Garching) and G. Szokoly (Eoetvoes Univ., Budapest and MPE Garching) report on behalf of the GROND team: We observed the field of GRB 080613B (Swift trigger 313954; Markwardt et al., GCN #7873) simultaneously in g'r'i'z'JHK with GROND (Greiner et al. 2008, PASP 120, 405) mounted at the 2.2m ESO/MPI telescope at La Silla Observatory (Chile). Observations started at 22:47 UT on June 13th, 2008, 11.6 hrs after the GRB trigger. We do not detect any object within the refined 3.6'' Swift-XRT error circle reported by Mao et al. (GCN #7875) to the following 3-sigma upper limits: g' > 24.4, r' > 24.4, i' > 23.5, z' > 23.5 and J > 22.4. Given upper limits are calibrated against USNO-B1 as well as 2MASS field stars.