NASA Swift: GRB 060501: Swift detection of a burst

TITLE: GCN GRB OBSERVATION REPORT
NUMBER: 5040
SUBJECT: GRB 060501: Swift detection of a burst
DATE: 06/05/01 08:44:00 GMT
FROM: Scott Barthelmy at NASA/GSFC Scott@lheamail.gsfc.nasa.gov

V. La Parola (INAF-IASFPA), S. D. Barthelmy (GSFC), N. Gehrels (NASA/GSFC), V. Mangano (INAF-IASFPA), C. B. Markwardt (GSFC/UMD), D. M. Palmer (LANL), A. M. Parsons (GSFC), P. Romano (INAF-OAB) and E. Troja (INAF-IASFPA) report on behalf of the Swift Team:

At 08:14:58 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 060501 (trigger=208050). Swift did not slew due to the earth-observing constraint. The BAT on-board calculated location is RA,Dec 328.367, +43.983 {21h 53m 28s, +43d 58′ 59″} (J2000) with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve shows single roughly triangular shaped peak starting at T-5 sec and ending at ~T+20 sec. The peak count rate was ~2400 counts/sec (15-350 keV), at ~0 sec after the trigger.

Because of an Earth limb constraint, the spacecraft did not slew promptly to the BAT position, and so there are no immediate XRT or UVOT data products to analyze.