TITLE: GCN CIRCULAR NUMBER: 15828 SUBJECT: GRB 140213A: Skynet R-COP Detection of Optical Afterglow DATE: 14/02/13 23:29:52 GMT FROM: Adam S. Trotter at UNC-Chapel Hill/PROMPT/Skynet A. Trotter, J. Haislip, D. Reichart, A. LaCluyze, A. Verveer, T. Spuck, A. Foster, N. Frank, K. Ivarsen, J. Moore, M. Nysewander, R. Beauchemin, T. Berger, M. Carroll, H. T. Cromartie, R. Egger, M. Hinckle, A. Ireland, M. Maples, L. Scott, and J. A. Crain report: Skynet observed the Swift-BAT localization of GRB 140213A (Holland et al., GCN 15825, Swift trigger 586569) with the 14-inch R-COP telescope at Perth Observatory, Australia. Observations began at 59s and continued until 92m post-trigger, with rotating exposures in the BVRI bands increasing from 10s to 80s. We detect a fading optical source in all bands at the position of the source detected by the Swift UVOT (Siegel & Holland, GCN 15826). The source faded from R=14.3 at t=113s to R=17.8 at t=73m. A preliminary light curve is at: http://www.skynet.unc.edu/grb/grb140213a.png Photometry is calibrated to five APASS-DR7 stars in the field, and has not been corrected for the Galactic foreground extinction corresponding to E(B-V)=0.07 (Schlegel et al. 1998). Skynet observations are ongoing.