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GCN Circular 18202

Subject
IPN Triangulation of GRB 150824A
Date
2015-08-25T16:29:47Z (10 years ago)
From
Dmitry Svinkin at Ioffe Institute <svinkin@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,

S. Golenetskii, R. Aptekar, V. Pal'shin, 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,

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:

The long-duration, bright GRB 150824A has been detected by Fermi (GBM: 
Bissaldi and Burns, GCN Circ. 18201Loading...
 
 ), Konus-Wind, INTEGRAL (SPI-ACS), 
and Mars-Odyssey (HEND), so far, at about 6812 s UT (01:53:32).

We have triangulated it to a preliminary, 3 sigma error box whose 
coordinates are:
  ---------------------------------------------
   RA(2000), deg                 Dec(2000), deg
  ---------------------------------------------
  Center:
   167.550 (11h 10m 12s) -56.964 (-56d 57' 49")
  Corners:
   166.891 (11h 07m 34s) -57.136 (-57d 08' 10")
   167.182 (11h 08m 44s) -57.159 (-57d 09' 31")
   168.205 (11h 12m 49s) -56.787 (-56d 47' 12")
   167.915 (11h 11m 40s) -56.767 (-56d 46' 03")
  ---------------------------------------------
The error box area is 253 sq. arcmin, and its maximum
dimension is 48 arcmin (the minimum one is 6.2 arcmin).
The Sun distance was 69 deg.

This box may be improved.

A triangulation map is posted at
http://www.ioffe.ru/LEA/GRBs/GRB150824_T06810/IPN/

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