TITLE: GCN GRB OBSERVATION REPORT NUMBER: 3568 SUBJECT: GRB 050525a: PROMPT VRcIc Detections DATE: 05/07/06 19:25:10 GMT FROM: Josh Haislip at U.North Carolina J. Haislip, C. MacLeod, M. Nysewander, A. Foster, J. A. Crain, D. Reichart, M. Bayliss, J. Kirschbrown, and C. Mack report on behalf of the UNC team of the FUN GRB Collaboration: We observed the BAT localization of GRB 050525a (Band et al., GCN 3466) with PROMPT-5 beginning 5.3 hours after the burst. We detect the afterglow (Rykoff et al., GCN 3465) in VRcIc across multiple epochs. Using the field calibration of Nysewander et al. (GCN 3566), we find that Rc = 19.84 +/- 0.11 mag at a mean time of 8.1 hours after the burst. PROMPT is still being built and commissioned.