GCN Circular 28228
Subject
IPN triangulation of GRB 200805A (short)
Date
2020-08-07T23:50:34Z (4 years ago)
From
Anna Ridnaia at Ioffe Institute <ridnaia@mail.ioffe.ru>
A. Ridnaia, 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,
and
A. von Kienlin, X. Zhang, A. Rau, V. Savchenko, E. Bozzo,
and C. Ferrigno, on behalf of the INTEGRAL SPI-ACS GRB team, report:
The short-duration GRB 200521A
(CALET-CGBM detection: Shimizu et al., GCN Circ. 28217;
CGBM-SPI-ACS triangulation: Tamura et al., GCN Circ. 28219)
was detected by CALET (CGBM), Konus-Wind, and
INTEGRAL (SPI-ACS) at about 48670 s UT (13:31:10).
We have triangulated it to a preliminary, 3 sigma error arc whose
coordinates are:
---------------------------------------------
RA(2000), deg Dec(2000), deg
---------------------------------------------
Center:
97.601 (06h 30m 24s) -31.467 (-31d 28' 01")
Corners:
97.403 (06h 29m 37s) -31.623 (-31d 37' 23")
121.103 (08h 04m 25s) -44.012 (-44d 00' 43")
120.592 (08h 02m 22s) -43.397 (-43d 23' 49")
97.798 (06h 31m 11s) -31.310 (-31d 18' 36")
84.870 (05h 39m 29s) -13.195 (-13d 11' 43")
84.208 (05h 36m 50s) -12.881 (-12d 52' 52")
---------------------------------------------
The error arc area is 20.3 sq. deg, and its maximum
dimension is ~43.7 deg (the minimum one is ~27.6 arcmin).
The Sun distance was ~58 deg.
This arc may be improved.
A triangulation map is posted at
http://www.ioffe.ru/LEA/GRBs/GRB200805_T48670/IPN/
The Konus-Wind time history and spectrum will be given in a forthcoming
GCN Circular.