TITLE: GCN CIRCULAR NUMBER: 9112 SUBJECT: Fermi GBM Detection of a weak source DATE: 09/04/08 21:49:48 GMT FROM: Vandiver Chaplin at UAH/Fermi-GBM V.Chaplin (UAH) reports on behalf of the Fermi Gamma-ray Burst Monitor Team: “On 07 April 2009 at 18:43:55.25 UT, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located a weak source (trigger 260822637 / 090407781). The most likely nature of the source is a weak GRB. The GBM lightcurve consists of a weak pulse of about 3 seconds starting from T0-3, and appears to only have emission between 10-100keV. Since the source is very weak, it is not possible to find a reliable on-ground calculated location and to perform any spectral analysis."