[vsnet-grb-info 11711] IPN Triangulation of GRB 120323A (short/very intense)

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  13102
SUBJECT: IPN Triangulation of GRB 120323A (short/very intense)
DATE:    12/03/25 09:13:33 GMT
FROM:    Valentin Pal'shin at Ioffe Inst  <val at mail.ioffe.ru>

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 GRNS GRB team,

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

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

A. von Kienlin, X. Zhang, V. Savchencko, and A. Rau, on behalf of the
INTEGRAL SPI-ACS GRB team, report:

The short-duration, very intense GRB 120323A has been observed by 
INTEGRAL (SPI-ACS), Fermi (GBM trigger 354197421: Gruber & Connaughton, 
GCN 13099), Konus-Wind, MESSENGER (GRNS), and Swift (BAT) so far, at 
about 43820 s UT (12:10:20). 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:
   340.407 (22h 41m 38s) +29.717 (+29d 43' 03")
  Corners:
   340.592 (22h 42m 22s) +30.058 (+30d 03' 29")
   340.405 (22h 41m 37s) +29.942 (+29d 56' 30")
   340.226 (22h 40m 54s) +29.374 (+29d 22' 27")
   340.410 (22h 41m 38s) +29.493 (+29d 29' 35")
  ---------------------------------------------
The error box area is 262 sq. arcmin, and its maximum
dimension is 45 arcmin.

This box may be improved.

The center of the GBM location (Gruber & Connaughton, GCN 13099) is 6.2 
deg from the center of the IPN box.