GCN Circular 16752

K. Hurley and J. Goldsten, on behalf of the MESSENGER NS GRB team,

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

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

S. Golenetskii, R. Aptekar, V. Pal'shin, D. Frederiks, D. Svinkin, 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,

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

D. M. Smith, on behalf of the RHESSI GRB team, report:

The long-duration, very intense GRB 140825A has been observed by 
Konus-Wind, MESSENGER (GRNS), Mars Odyssey (HEND), Swift (BAT), RHESSI, 
and INTEGRAL (SPI-ACS), so far, at about 24925 s UT (06:55:25). The 
burst was outside the coded field of view of the BAT.

We have triangulated it to a preliminary, 3 sigma error box whose 
coordinates are:
   ---------------------------------------------
    RA(2000), deg                 Dec(2000), deg
   ---------------------------------------------
   Center:
     88.715 (05h 54m 51s) -11.830 (-11d 49' 48")
   Corners:
     88.611 (05h 54m 27s) -11.630 (-11d 37' 48")
     88.657 (05h 54m 38s) -11.950 (-11d 57' 01")
     88.818 (05h 55m 16s) -12.029 (-12d 01' 46")
     88.772 (05h 55m 05s) -11.710 (-11d 42' 36")
   ---------------------------------------------
The error box area is 169 sq. arcmin, and its maximum
dimension is 27 arcmin (the minimum one is 9 arcmin).

This box may be improved.

A triangulation map is posted at
http://www.ioffe.ru/LEA/GRBs/GRB140825_T24925/IPN/

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