[vsnet-grb-info 10589] IPN localization of bright GRB 110518A

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  12018
SUBJECT: IPN localization of bright GRB 110518A
DATE:    11/05/19 23:20:59 GMT
FROM:    Valentin Pal'shin at Ioffe Inst  <val at mail.ioffe.ru>

S. Golenetskii, R. Aptekar, E. Mazets, V. Pal'shin, D. Frederiks,
D. Svinkin, and T. Cline on behalf of the Konus-Wind team,

K. Hurley on behalf of the Mars Odyssey and MESSENGER GRB teams,

I. G. Mitrofanov, D. Golovin, M. L. Litvak, and A. B. Sanin,
on behalf of the HEND-Odyssey GRB team,

J. Goldsten on behalf of the MESSENGER GRNS GRB team,

A. von Kienlin, X. Zhang, and A. Rau, on behalf of the
INTEGRAL SPI-ACS GRB team,

D. Smith, J. McTiernan, R. Schwartz, and W. Hajdas, on behalf
of the RHESSI GRB team,

and

J. Cummings, D. Palmer, S. Barthelmy, N. Gehrels, and H. Krimm, on
behalf of the Swift-BAT team, report:

Konus-Wind, Swift (BAT), INTEGRAL SPI-ACS, RHESSI, Mars Odyssey (HEND), 
and MESSENGER (GRNS) observed the long bright GRB 110518A at about 
20:38:14 UT. The burst was outside the coded  field of view of the BAT.

We have triangulated it to a 3 sigma error box whose coordinates are:
-----------------------------------------------
    RA(2000), deg              Dec(2000), deg
-----------------------------------------------
Center:
   67.180 (04h 28m 43s)   -34.195 (-34d 11' 43")
Corners:
   67.910 (04h 31m 38s)   -33.755 (-33d 45' 18")
   66.826 (04h 27m 18s)   -34.525 (-34d 31' 28")
   66.438 (04h 25m 45s)   -34.626 (-34d 37' 35")
   67.529 (04h 30m 07s)   -33.864 (-33d 51' 51")
-----------------------------------------------
The error box area is 536 sq. arcmin.
The maximum distance between the box corners is 1.5 deg.
This error box may be improved.

Spectral information will be reported in a forthcoming GCN Circular.