[vsnet-grb-info 19414] IPN Triangulation of GRB 170522B (long/intense)

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  21130
SUBJECT: IPN Triangulation of GRB 170522B (long/intense)
DATE:    17/05/23 14:48:31 GMT
FROM:    Dmitry Svinkin at Ioffe Institute  <svinkin 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,

D. Svinkin, S. Golenetskii, R. Aptekar, D. Frederiks, A. Kozlova,
and T. Cline on behalf of the Konus-Wind team,

A. von Kienlin, X. Zhang, A. Rau, V. Savchenko, E. Bozzo,
and C. Ferrigno, on behalf of the INTEGRAL SPI-ACS GRB team,

and

W. Boynton, C. Fellows, K. Harshman, H. Enos, and R. Starr,
on behalf of the GRS-Odyssey GRB team, report:

A long-duration, intense GRB 170522B has been detected by
Konus-Wind, Mars-Odyssey (HEND), and INTEGRAL (SPI-ACS),
so far, at about 84124 s UT (23:22:04).

We have triangulated it to a preliminary,
3 sigma error box whose coordinates are:
  ---------------------------------------------
   RA(2000), deg                 Dec(2000), deg
  ---------------------------------------------
  Center:
   159.268 (10h 37m 04s) -34.716 (-34d 42' 56")
  Corners:
   158.845 (10h 35m 23s) -35.550 (-35d 32' 58")
   158.818 (10h 35m 16s) -35.346 (-35d 20' 45")
   159.689 (10h 38m 45s) -33.872 (-33d 52' 21")
   159.715 (10h 38m 52s) -34.080 (-34d 04' 47")
  ---------------------------------------------
The error box area is 644 sq. arcmin, and its maximum
dimension is 1.82 deg (the minimum one is 6.6 arcmin).
The Sun distance was 109 deg.

This box may be improved.

A triangulation map is posted at
http://www.ioffe.ru/LEA/GRBs/GRB170522_T84124/IPN/

The Konus-Wind time history and spectrum will be given in
a forthcoming GCN Circular.