[vsnet-grb-info 17431] IPN Triangulation of GRB 151229B (extremely intense/long)
GCN Circulars
gcncirc at capella2.gsfc.nasa.gov
Tue Jan 12 04:50:49 JST 2016
TITLE: GCN CIRCULAR
NUMBER: 18852
SUBJECT: IPN Triangulation of GRB 151229B (extremely intense/long)
DATE: 16/01/11 19:48:08 GMT
FROM: Dmitry Svinkin at Ioffe Institute <svinkin at mail.ioffe.ru>
S. Golenetskii, R. Aptekar, D. Frederiks, D. Svinkin,
and T. Cline on behalf of the Konus-Wind team,
K. Hurley, on behalf of the IPN,
I. G. Mitrofanov, D. Golovin, M. L. Litvak, and A. B. Sanin,
on behalf of the HEND-Odyssey GRB team,
A. von Kienlin, X. Zhang, A. Rau, V. Savchenko, E. Bozzo,
and C. Ferrigno, on behalf of the INTEGRAL SPI-ACS GRB team,
S. Barthelmy, J. Cummings, N. Gehrels, H. Krimm, and D. Palmer,
on behalf of the Swift-BAT team, and
W. Boynton, C. Fellows, K. Harshman, H. Enos, and R. Starr,
on behalf of the GRS-Odyssey GRB team, report:
The long-duration, extremely intense GRB 151229B has been detected by
Konus-Wind, Swift (BAT), and INTEGRAL (SPI-ACS), so far, at about 77063
s UT (21:24:23). The burst was outside the coded field of view of the
BAT. The burst was Mars-occulted to Odyssey.
We have triangulated it to a preliminary, 3 sigma error box whose
coordinates are:
---------------------------------------------
RA(2000), deg Dec(2000), deg
---------------------------------------------
Center:
66.759 (04h 27m 02s) -7.167 ( -7d 10' 00")
Corners:
71.595 (04h 46m 23s) -10.885 (-10d 53' 06")
67.582 (04h 30m 20s) -8.217 ( -8d 13' 00")
62.910 (04h 11m 38s) -3.557 ( -3d 33' 27")
65.994 (04h 23m 59s) -6.129 ( -6d 07' 46")
---------------------------------------------
The error box area is about 3 sq. deg,
and its maximum dimension is 11.3 deg
(the minimum one is 27 arcmin).
The Sun distance was 136 deg.
This box may be improved.
A triangulation map is posted at
http://www.ioffe.ru/LEA/GRBs/GRB151229_T77056/IPN/
The Konus-Wind time history and spectrum will be given in a forthcoming
GCN Circular.
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