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 19618

Konus-Wind observation of GRB 160620A
2016-06-29T11:04:58Z (8 years ago)
Dmitry Frederiks at Ioffe Institute <>
D. Frederiks, S. Golenetskii, R.Aptekar, P. Oleynik, M. Ulanov,
D. Svinkin, A. Tsvetkova, A.Lysenko, A. Kozlova, and T. Cline,
on behalf of the Konus-Wind team, report:

The short GRB 160620A (IPN triangulation: Hurley et al., GCN 19594)
triggered Konus-Wind at T0=18380.236 s UT (05:06:20.236).

The light curve shows a single pulse which starts at ~T0-0.256 s,
peaks at ~T0+0.608, and have a total duration of ~1.5 s.
The emission is seen up to ~3 MeV.

As observed by Konus-Wind, the burst had a fluence
of 4.8(-0.6,+1.1)x10^-6 erg/cm2, and a 16-ms peak flux,
measured from T0+0.608 s, of 9.4(-0.6,+1.0)x10^-6 erg/cm2/s
(both in the 20 keV - 10 MeV energy range).

The time-averaged spectrum (measured from T0 to T0+8.448 s)
is best fit in the 20 keV - 15 MeV range
by the GRB (Band) function with the following model parameters:
the low-energy photon index alpha = -0.63 (-0.23,+0.35),
the high energy photon index beta = -3.41 (-6.59,+0.91),
the peak energy Ep = 158 (-27,+23) keV,
chi2 = 106/97 dof.

The Konus-Wind light curve of this GRB is available at

All the quoted errors are at the 90% confidence level.
All the quoted values are preliminary.
Looking for U.S. government information and services? Visit