TITLE:   GCN CIRCULAR
NUMBER:  11156
SUBJECT: IPN triangulation of GRB 100826A
DATE:    10/08/30 22:30:23 GMT
FROM:    Kevin Hurley at UCBerkeley/SSL  <khurley@ssl.berkeley.edu>

K. Hurley, on behalf of the IPN 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,

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

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

V. Connaughton, M. Briggs, and C. Meegan, on behalf of the Fermi GBM 
team, and

K. Yamaoka, M. Ohno, Y. Hanabata, Y. Fukazawa, T. Takahashi, M. Tashiro,
Y. Terada, T. Murakami, and K. Makishima, on behalf of the Suzaku WAM 
team, report:

The long, bright GRB 100826A, observed by the Fermi/LAT and Fermi/GBM at 
22:58:22.89 UT (McEnery & Omodei, GCN 11155), was also detected by 
Konus-Wind, Mars Odyssey (HEND), MESSENGER (GRNS), and Suzaku (WAM).

We have triangulated it to a preliminary 3 sigma error box whose
coordinates are:
-----------------------------------------------
     RA(2000), deg              Dec(2000), deg
-----------------------------------------------
Center:
  279.593 (18h 38m 22s)   -22.128 (-22d 07' 42")
Corners:
  279.356 (18h 37m 25s)   -20.511 (-20d 30' 38")
  279.424 (18h 37m 42s)   -18.324 (-18d 19' 27")
  279.708 (18h 38m 50s)   -25.604 (-25d 36' 13")
  280.041 (18h 40m 10s)   -26.935 (-26d 56' 07") 
-----------------------------------------------

The error box area is ~1.5 sq. deg
This error box may be improved.