TITLE: GCN CIRCULAR NUMBER: 15816 SUBJECT: GRB 140211A: Swift detection of a burst DATE: 14/02/11 12:39:09 GMT FROM: Jay R. Cummings at NASA/GSFC/Swift J. R. Cummings (NASA/UMBC), M. M. Chester (PSU), V. D'Elia (ASDC), L. Izzo (URoma/ICRA), J. A. Kennea (PSU), H. A. Krimm (CRESST/GSFC/USRA), C. B. Markwardt (NASA/GSFC), K. L. Page (U Leicester) and R. L. C. Starling (U Leicester) report on behalf of the Swift Team: At 12:23:03 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 140211A (trigger=586289). Swift did not slew due to a Moon constraint. The BAT on-board calculated location is RA, Dec 124.230, +20.244 which is RA(J2000) = 08h 16m 55s Dec(J2000) = +20d 14' 37" with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve showed a broad structure with a duration of about 20 sec. The peak count rate was ~1200 counts/sec (15-350 keV), at ~1 sec after the trigger. Due to a Moon observing constraint, Swift cannot slew to the BAT position until 20:04 UT on 2014 February 14. There will thus be no XRT or UVOT data for this trigger before this time. Burst Advocate for this burst is J. R. Cummings (jayc AT milkyway.gsfc.nasa.gov). 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.)