TITLE: GCN CIRCULAR NUMBER: 6862 SUBJECT: GRB 071010: Rapid PROMPT Detections DATE: 07/10/10 06:45:21 GMT FROM: Josh Haislip at U.North Carolina J. Haislip, D. Reichart, M. Nysewander, A. LaCluyze, K. Ivarsen, J. A. Crain, A. Foster, M. Schubel, J. Styblova, T. Brennan, and A. Trotter report: Skynet observed the localization of GRB 071010 (Moretti et al., GCN 6859) with three of the 16" PROMPT telescopes at CTIO beginning 90 seconds after the burst (35 seconds after notification) in BVRI. We detect the afterglow (Klotz et al., GCN 6860) in all filters. At 2.6 minutes after the burst, we measure I ~ 17.5 mag.