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TITLE:   GCN CIRCULAR
NUMBER:  16364
SUBJECT: GRB 140607A: Swift detection of a burst
DATE:    14/06/07 17:27:16 GMT
FROM:    Scott Barthelmy at NASA/GSFC  <scott@milkyway.gsfc.nasa.gov>

V. Mangano (PSU), S. D. Barthelmy (GSFC),
W. H. Baumgartner (GSFC/UMBC), S. B. Cenko (GSFC),
C. B. Markwardt (NASA/GSFC), D. M. Palmer (LANL) and
T. N. Ukwatta (MSU) report on behalf of the Swift Team:

At 17:13:31 UT, the Swift Burst Alert Telescope (BAT) triggered on
GRB 140607A, (trigger=601051).  Swift did not slew due to the Sun constraint. 
The BAT on-board calculated location is 
RA, Dec 86.380, +18.917, which is 
   RA(J2000)  = +05h 45m 31s
   Dec(J2000) = +18d 55' 00"
with an uncertainty of 3 arcmin (radius, 90% containment, including 
systematic uncertainty).  As is typical for image triggers the real-time BAT
light curve shows nothing significant.  However, the image significance
of 7.87 sigma gives us confidence that this is a real event even
in the absence of XRT and UVOT follow-up. 

Due to a Sun observing constraint, Swift cannot slew to the BAT
position until 22:00 UT on 2014 August 05. There will thus be no XRT or
UVOT data for this trigger before this time. 

Burst Advocate for this burst is V. Mangano (vxm22 AT psu.edu). 
Please contact the BA by email if you require additional information
regarding Swift followup of this burst. In extremely urgent cases, after
trying the Burst Advocate, you can contact the Swift PI by phone (see
Swift TOO web site for information: http://www.swift.psu.edu/too.html.)

////////////////////////////////////////////////////////////////////////
TITLE:   GCN CIRCULAR
NUMBER:  16370
SUBJECT: GRB 140607A: Swift-BAT refined analysis
DATE:    14/06/09 17:20:48 GMT
FROM:    Tilan Ukwatta at MSU  <tilan.ukwatta@gmail.com>

H. A. Krimm (GSFC/USRA), S. D. Barthelmy (GSFC),
W. H. Baumgartner (GSFC/UMBC), J. R. Cummings (GSFC/UMBC),
N. Gehrels (GSFC), A. Y. Lien (NASA/UMBC),
V. Mangano (PSU), C. B. Markwardt (GSFC),
D. M. Palmer (LANL), T. Sakamoto (AGU),
M. Stamatikos (OSU), J. Tueller (GSFC), T. N. Ukwatta (MSU)
(i.e. the Swift-BAT team):

Using the data set from T-239 to ~T+240 sec from the recent
telemetry downlink, we report further analysis of BAT
GRB 140607A (trigger #601051) (Mangano, et al., GCN Circ. 16364).
The BAT ground-calculated position is RA, Dec = 86.373, 18.904 deg
which is
   RA(J2000)  =  05h 45m 29.5s
   Dec(J2000) = +18d 54' 15.5"
with an uncertainty of 1.9 arcmin, (radius, sys+stat,
90% containment). The partial coding was 16%.

The mask-weighted light curve shows a very weak multi-peaked
structure starting at ~T-10.0 sec, and ending around T+200 sec.
The burst location went out of the BAT FOV when Swift started slewing
around ~T+200 sec. Thus we have no data beyond ~T+240 sec and
we cannot say when the burst was ended. Based on the available data,
the T90 (15-350 keV) is 109.9 +- 18.5 sec (estimated error
including systematics).

The time-averaged spectrum from T-17.7 to T+103.8 sec is best fit
by a simple power-law model.  The power law index of the
time-averaged spectrum is 1.78 +- 0.23.  The fluence in the
15-150 keV band is 2.2 +- 0.3 x 10^-06 erg/cm2.
The 1-sec peak photon flux measured from T+31.58 sec in the
15-150 keV band is 0.9 +- 0.4 ph/cm2/sec.  All the quoted errors
are at the 90% confidence level.

The results of the batgrbproduct analysis are available at
http://swift.gsfc.nasa.gov/results/BATbursts/601051/bascript/top.html