NASA Swift Mission: GRB 060223B: Swift detection of a bright burst

TITLE: GCN GRB OBSERVATION REPORT
NUMBER: 4821
SUBJECT: GRB 060223B: Swift detection of a bright burst
DATE: 06/02/23 20:01:52 GMT
FROM: Jay R. Cummings at NASA/GSFC/Swift jayc@milkyway.gsfc.nasa.gov

J. R. Cummings (NASA/ORAU), S. D. Barthelmy (GSFC), D. N. Burrows (PSU), M. M. Chester (PSU), A. Cucchiara (PSU), J. A. Kennea (PSU), H. A. Krimm (GSFC/USRA), C. B. Markwardt (GSFC/UMD), D. M. Palmer (LANL), M. Perri (ASDC), L. Vetere (ASDC) and H. Z. Ziaeepour (UCL-MSSL) report on behalf of the Swift Team:

At 19:41:04 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 060223B (trigger=192152). Swift did not slew due to a moon constraint. The BAT on-board calculated location is RA,Dec 254.241, -30.807 {16h 56m 58s, -30d 48′ 24″} (J2000) with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve showed a multi-peaked structure with a duration of about 15 sec. The peak count rate was ~6000 counts/sec (15-350 keV), at ~3 sec after the trigger.

We anticipate that the narrow-field instruments will be able to observe the burst at about T+18 hours.

[GCN OPS NOTE(23feb06): Per author’s request, “060223” was changed to “060223B”.]