TITLE: GCN GRB OBSERVATION REPORT NUMBER: 3957 SUBJECT: WIRO observations in I of GRB 050908 DATE: 05/09/09 19:28:11 GMT FROM: Chris Rodgers at U of Wyoming D. Dale, R. Barlow, C. Paul, C. Rodgers, D. Allen, R. Canterna, M. Pierce report on behalf of the Wyoming Infrared Observatory GRB Team as part of the FUN GRB Collaboration. We responded to GRB 050908 (GCN 3942) at 07:40:25 UT with a 2 minute I exposure and at 10:25:35 UT with a 4 minute I exposure centered on the position of the original Swift-BAT GRB Position under 1.5 arcsecond photometric conditions. The source was detected in the 2 minute I exposure in the same position reported by GCN 3943 (Torii et al.). Zero points were calculated using the USNO B1.0 catalogue. UT Time Since Filter Magnitude 07:40:25 1:57:54 I 18.410 +/- 0.128 The source was no longer detected in the 4 minute I exposure. UT Time Since Filter Limiting Magnitude 10:25:35 4:43:04 I 18.620 10 sigma limiting magnitude were derived from the USNO-B1.0 catalogue. This message may be cited.