TITLE: GCN GRB OBSERVATION REPORT NUMBER: 5144 SUBJECT: GRB 060516: Swift detection of a burst DATE: 06/05/16 07:04:09 GMT FROM: Scott Barthelmy at NASA/GSFC A. M. Parsons (GSFC), L. M. Barbier (NASA/GSFC), S. D. Barthelmy (GSFC), J. R. Cummings (NASA/ORAU), C. B. Markwardt (GSFC/UMD) and D. M. Palmer (LANL) report on behalf of the Swift Team: At 06:43:34 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 060516 (trigger=210254). Swift did not slew because of the Sun observing constraint. The BAT on-board calculated location is RA,Dec 71.178, -18.113 {04h 44m 43s, -18d 06' 47"} (J2000) with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). As is typical for image triggers, the BAT TDRSS lightcurve shows nothing above background noise. We will have to wait for the full data downlink (T+2 hrs) to tell more about this burst.