TITLE: GCN CIRCULAR NUMBER: 10133 SUBJECT: GRB091026 : IRSF NIR upper limit DATE: 09/11/04 16:35:22 GMT FROM: Kenta Nishimoto at Nagoya U/MOA-II K. Nishimoto, T. Sako (Nagoya Univ.) on behalf of the MOA Collaboration, M. Kurita, T. Nagayama (Nagoya Univ.) on behalf of the IRSF Collabration report: We searched for a NIR afterglow of GRB091026 (Markwardt et al., GCN 10081) starting from 18:43:32.3 UT on 2009 Oct 26 (5.5 hours after the burst) with the SIRIUS on the IRSF 1.4m telescope at SAAO in South Africa. In images of a 300sec exposure with J, H and Ks filter, we did not find any object within the error circle of the Swift XRT source position (Evans. et al., GCN 10084). A 5 sigma upper limits are the followings. J > 18.35 H > 17.39 K > 16.70 This photometry was done by using the DoPhot and calibrated against the 2MASS cataloged stars