[vsnet-grb-info 19444] IPN Triangulation of GRB 170527A
GCN Circulars
gcncirc at capella2.gsfc.nasa.gov
Wed May 31 00:12:16 JST 2017
TITLE: GCN CIRCULAR
NUMBER: 21164
SUBJECT: IPN Triangulation of GRB 170527A
DATE: 17/05/30 15:11:47 GMT
FROM: Anna Kozlova at Ioffe Institute <ann_kozlova at mail.ioffe.ru>
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. Kozlova, S. Golenetskii, R. Aptekar, D. Frederiks, D. Svinkin,
and T. Cline on behalf of the Konus-Wind team,
V. Connaughton, M. S. Briggs, C. Meegan, V. Pelassa,
and A. Goldstein, on behalf of the Fermi GBM 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 GRB 170527A (Stanbro et al.,GCN 21157)
was detected by Fermi(GBM), Konus-Wind, and
Mars-Odyssey(HEND), at about 41467 s UT (11:31:07).
We have triangulated it to a preliminary, 3 sigma error box whose
coordinates are:
---------------------------------------------
RA(2000), deg Dec(2000), deg
---------------------------------------------
Center:
192.3245 -1.4883
Corners:
192.3882 -1.5179
197.2538 +8.1347
196.7137 +7.4412
192.2608 -1.4588
188.2675 -10.5805
188.0687 -11.4344
---------------------------------------------
The error box area is 2.9 sq. deg, and its maximum
dimension is 21.6 deg (the minimum one is 8.4 arcmin).
The Sun distance was about 125 deg.
This box may be improved.
A triangulation map is posted at
http://www.ioffe.ru/LEA/GRBs/GRB170527_T41466/IPN/
The Konus-Wind time history and spectrum will be given in a forthcoming
GCN Circular.
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