TITLE: GCN CIRCULAR NUMBER: 15552 SUBJECT: GRB 131125A: iPTF upper limits on the afterglow of a short GRB DATE: 13/11/29 17:47:17 GMT FROM: Leo Singer at CIT/PTF L. P. Singer (Caltech), M. M. Kasliwal (Carnegie Observatories), and S. B. Cenko (NASA/GSFC) report on behalf of the intermediate Palomar Transient Factory (iPTF) collaboration: The short-hard GRB 131125A triggered Fermi GBM (Fermi trigger 407089974) at 2013-11-25 16:32:47 and was localized by IPN using Fermi, INTEGRAL, and Konus-Wind (Golenetskii et al., GCN 15546). Starting 2013-11-26 04:16 UT, we imaged about 95 deg^2 surrounding the Fermi GBM localization, covering most of the intersection between the GBM 1-sigma statistical+systematic error contour and the IPN Fermi-INTEGRAL 3-sigma annulus, also including the entire intersection with the Fermi-Wind annulus. Using standard iPTF vetting procedures including Palomar 60-inch follow-up, we find no afterglow candidates to an average limiting magnitude of R~20.4 at 11.8 hours after the burst. See http://www.its.caltech.edu/~lsinger/iptf/Fermi407089974.pdf for a diagram of the PTF fields observed in relation to the Fermi and IPN localizations.