TITLE: GCN CIRCULAR NUMBER: 19731 SUBJECT: GRB 160726A: Swift detection of a short burst DATE: 16/07/26 01:50:31 GMT FROM: Kim Page at U.of Leicester R. L. C. Starling (U Leicester), A. Y. Lien (GSFC/UMBC), K. L. Page (U Leicester) and T. Sakamoto (AGU) report on behalf of the Swift Team: At 01:34:07 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 160726A (trigger=706052). Swift did not slew immediately due to an observational constraint. The BAT on-board calculated location is RA, Dec 98.821, -6.644 which is RA(J2000) = 06h 35m 17s Dec(J2000) = -06d 38' 39" with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve showed a double-peaked structure with a duration of about 1 sec. The peak count rate was ~14000 counts/sec (15-350 keV), at ~0.7 sec after the trigger. Due to a Sun observing constraint, Swift cannot slew to the BAT position until 12:53 UT on 2016 August 10. There will thus be no XRT or UVOT data for this trigger before this time. Burst Advocate for this burst is R. L. C. Starling (rlcs1 AT star.le.ac.uk). 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.)