TITLE: GCN CIRCULAR NUMBER: 6805 SUBJECT: GRB 070920: Swift detection of a burst DATE: 07/09/20 04:19:07 GMT FROM: David Palmer at LANL D. Grupe (PSU), N. Gehrels (NASA/GSFC), F. E. Marshall (NASA/GSFC), C. Pagani (PSU), D. M. Palmer (LANL), J. L. Racusin (PSU), G. Sato (GSFC/ISAS), M. Stamatikos (NASA/ORAU), M. C. Stroh (PSU), T. N. Ukwatta (GSFC/GWU) and L. Vetere (PSU) report on behalf of the Swift Team: At 04:00:13 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 070920 (trigger=291614). The BAT on-board calculated location is RA, Dec 100.932, +72.227 which is RA(J2000) = 06h 43m 44s Dec(J2000) = +72d 13' 38" with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). As is often the case with 64-second image triggers, the BAT light curve shows no obvious variation in the count rate. Because Swift is in the process of returning to normal operations, automatic slewing to GRBs is currently disabled. Therefore, there are no prompt XRT or UVOT observations of this burst. Burst Advocate for this burst is D. Grupe (grupe AT astro.psu.edu). 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.)