GCN Circular 13353

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

V. Connaughton, M. Briggs, and C. Meegan, 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

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 short-duration GRB 120603A has been observed by Fermi (GBM: trigger
360412331), INTEGRAL (SPI-ACS), Konus-Wind, Suzaku (WAM), and MESSENGER
(GRNS), so far, at about 37930 s UT (10:32:10).

We have triangulated it to a preliminary, 3 sigma error box whose
coordinates are:
---------------------------------------------
    RA(2000), deg                 Dec(2000), deg
   ---------------------------------------------
   Center:
    198.794 (13h 15m 11s)  +4.326 ( +4d 19' 35")
   Corners:
    197.693 (13h 10m 46s)  +2.527 ( +2d 31' 36")
    199.766 (13h 19m 04s)  +6.230 ( +6d 13' 49")
    199.927 (13h 19m 42s)  +6.103 ( +6d 06' 12")
    197.853 (13h 11m 25s)  +2.399 ( +2d 23' 56")
   ---------------------------------------------

The error box area is 0.857 sq. deg, and its maximum
dimension is 4.280 deg.

This box may be improved.

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