GCN Circular 13964
V. D'Elia (ASDC), H. A. Krimm (CRESST/GSFC/USRA), C. B. Markwardt (NASA/GSFC), A. Maselli (INAF-IASFPA), P. Romano (INAF-IASFPA), B. Sbarufatti (INAF-OAB/PSU) and T. N. Ukwatta (MSU) report on behalf of the Swift Team: At 09:35:02 UT, the Swift Burst Alert Telescope (BAT) triggered and located an outburst from the SFXT source XTE J1739-302 (trigger=538084). The BAT on-board calculated location is RA, Dec 264.873, -30.360 which is RA(J2000) = 17h 39m 30s Dec(J2000) = -30d 21' 35" with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). Since this was an image trigger, the light curve shows no significant features. The peak count rate was ~1000 counts/sec (15-350 keV), at ~2 sec after the trigger. The satellite did not slew to this source because the current observing target had a higher merit. Thus there will be no data for this source from the XRT or UVOT.