GCN Circular 2433
M. C. Nysewander, J. A. Moran, C. Zdanowicz, D. Reichart (U. North Carolina) and M. Schwartz (Tenagra Observatories) report on behalf of the FUN GRB Collaboration: We twice observed the error circle of GRB 031026 (Bulter et al., GCN 2429) with the 32-inch Tenagra II telescope beginning 3.9 hours (Nysewander et al., GCN 2428) and 25.7 hours after the burst. We covered 99% of the error circle in four pointings with a total integration time per pointing of 1350 sec for the first epoch and 1500 sec for the second epoch. Using the image subtraction routine ISIS2 (Alard 2000), we find no transients to the limiting magnitude of our first epoch image, which we measure to be Ic = 20.4 mag (3 sigma) using five USNO-B1 stars for calibration. Assuming R_V = 3.1, the Galactic extinction along the line of sight is A_Ic = 1.5 mag.