Skip to main content
Testing. You are viewing the public testing version of GCN. For the production version, go to
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

GCN Circular 10964

GRB 100719A: Swift-BAT refined analysis
2010-07-19T14:49:02Z (14 years ago)
Scott Barthelmy at NASA/GSFC <>
H. A. Krimm (GSFC/USRA), S. D. Barthelmy (GSFC), W. H. Baumgartner (GSFC/UMBC),
J. R. Cummings (GSFC/UMBC), N. Gehrels (GSFC), R. Margutti (INAF-OAB),
C. B. Markwardt (GSFC/UMD), D. M. Palmer (LANL), T. Sakamoto (GSFC/UMBC),
M. Stamatikos (GSFC/ORAU), J. Tueller (GSFC), T. N. Ukwatta (GWU)
(i.e. the Swift-BAT team):
Using the data set from T-61 to T+242 sec from recent telemetry downlinks,
we report further analysis of BAT GRB 100719A (trigger #429357)
(Margutti, et al., GCN Circ. 10963).  The BAT ground-calculated position is
RA, Dec = 112.319, -5.857 deg which is 
   RA(J2000)  =  07h 29m 16.6s 
   Dec(J2000) = -05d 51' 24.4" 
with an uncertainty of 2.4 arcmin, (radius, sys+stat, 90% containment).
The partial coding was 57%.
The mask-weighted light curve shows a few overlapping peaks starting
at ~T-5 sec, peaking at ~T+2 sec, and ending at ~T+80 sec.
T90 (15-350 keV) is 36.0 +- 9.2 sec (estimated error including systematics).
The time-averaged spectrum from T-3.9 to T+35.1 sec is best fit by a simple
power-law model.  The power law index of the time-averaged spectrum is
1.69 +- 0.25.  The fluence in the 15-150 keV band is 5.3 +- 0.9 x 10^-7 erg/cm2.
The 1-sec peak photon flux measured from T+2.06 sec in the 15-150 keV band
is 0.6 +- 0.2 ph/cm2/sec.  All the quoted errors are at the 90% confidence
The results of the batgrbproduct analysis are available at
Looking for U.S. government information and services? Visit