Skip to main content
Testing. You are viewing the public testing version of GCN. For the production version, go to
Introducing Einstein Probe, Astro Flavored Markdown, and Notices Schema v4.0.0. See news and announcements

GCN Circular 5252

GRB 060614: Swift detection of a burst with a bright optical and X-ray counterpart
2006-06-14T13:04:09Z (18 years ago)
Ann M. Parsons at NASA/GSFC/Swift <>
A. M. Parsons (GSFC), J. R. Cummings (NASA/ORAU),
N. Gehrels (NASA/GSFC), M. R. Goad (U Leicester), C. Gronwall (PSU),
S. T. Holland (GSFC/USRA), J. A. Kennea (PSU),
V. La Parola (INAF-IASFPA), V. Mangano (INAF-IASFPA),
F. E. Marshall (NASA/GSFC), K. M. McLean (LANL/UTD), C. Pagani (PSU),
D. M. Palmer (LANL), P. Romano (INAF-OAB) and
M. Stamatikos (NASA/ORAU) report on behalf of the Swift Team:

At 12:43:48 UT, the Swift Burst Alert Telescope (BAT) triggered and
located GRB 060614 (trigger=214805).  Swift slewed immediately to 
the burst.  The BAT on-board calculated location is 
RA,Dec 320.862, -53.034 {21h 23m 27s, -53d 02' 02"} (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 120 sec, with initial bright sharp
peak and a long, also bright, somewhat softer extended peak.  The peak 
count rate was ~10000 counts/sec (15-350 keV), at ~2 sec after the 

The XRT began observing the field at 12:45:19 UT, 91 seconds after the
BAT trigger. XRT found a very bright, fading and uncatalogued X-ray source
located at RA(J2000) = 21h 23m 32.3s, Dec(J2000) = -53d 01' 32.1", with an
estimated uncertainty of 5.0 arcseconds (90% confidence radius). 
This location is 58 arcseconds from the BAT on-board position, within
the BAT error circle. The initial flux in the 0.1s image was
6.0e-08 erg/cm2/s (0.2-10 keV). 

UVOT took a finding chart exposure of 100 seconds with the White
(160-650 nm) filter starting 102 seconds after the BAT trigger. There
is a candidate afterglow in the rapidly available 2.7'x2.7' sub-image
at (RA,DEC) (J2000) of (320.8839,-53.0267) or
(21h23m32.14s,-53o01'36.1")  with a 1-sigma error radius of about 0.5
arc sec. This position is 4.3 arc sec. from the center of the XRT
error circle. The estimated magnitude is 18.4 with a 1-sigma error of
about 0.5 mag. No correction has been made for the expected extinction
corresponding to E(B-V) of  0.02.
Looking for U.S. government information and services? Visit