TITLE: GCN CIRCULAR NUMBER: 9573 SUBJECT: GRB 090625B: Swift observation of the INTEGRAL GRB 090625B DATE: 09/06/25 14:50:41 GMT FROM: David Burrows at PSU/Swift J. Mao (INAF-OAB), D. N. Burrows (PSU), E. A. Hoversten (PSU), J. A. Kennea (PSU), K. L. Page (U Leicester), M. A. Stark (PSU) and R. L. C. Starling (U Leicester) report on behalf of the Swift Team: Swift executed a Target of Opportunity observation of the INTEGRAL GRB 090625B, slewing to the burst at 14:24 UT. XRT observations began at 14:30:13. The observation begins too late after the burst for us to determine whether any sources in the field of view are fading. However, we find a faint X-ray source located at RA,Dec = 2.2618, -65.7803 which is equivalent to: RA (J2000.0) = 00 09 2.83 DEC (J2000.0) = -65 46 49.2 with an uncertainty of 4.1 arcsec (radius, 90% containment). UVOT observations are being made, but data will not be available until a ground downlink. Burst Advocate for this burst is J. Mao (jirong.mao AT brera.inaf.it). Please contact the BA by email if you require additional information regarding Swift followup of this burst. In extremely urgent cases, after trying the Burst Advocate, you can contact the Swift PI by phone (see Swift TOO web site for information: http://www.swift.psu.edu/too.html.)