TITLE: GCN GRB OBSERVATION REPORT NUMBER: 635 SUBJECT: X-ray burst or X-ray rich GRB 000416 observed by BeppoSAX DATE: 00/04/17 18:36:17 GMT FROM: SAX Science Operations at IAS/CNR Frascati On April 16 at 14:32:54 UT a burst was detected in WFC n.2 with a peak flux of about 2 Crab in the 2-26 keV range. The burst lasted about 25 s. Preliminary position is: R.A.= 258.76 Decl.= -71.56 with an error radius of 4'. We name the source 1SAXJ1715.0-7134. A marginal detection of the burst in the GRBM (40-700 keV) would lead to classify the event as an X-Ray rich GRB, although we could not exclude a type I X-ray burster on the basis of the WFC hardness ratio. A fast TOO observation was technically feasible but we could not perform it because of budget reduction of BeppoSAX operations (see GCN n.634) L. Piro BeppoSAX Mission Scientist