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GCN Circular 7211

Subject
IPN triangulation of GRB080122
Date
2008-01-23T23:53:42Z (17 years ago)
From
Kevin Hurley at UCBerkeley/SSL <khurley@ssl.berkeley.edu>
K. Hurley and T. Cline on behalf of the Mars Odyssey, Konus,
and MESSENGER GRB teams,

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

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

S. Golenetskii, R.Aptekar, E. Mazets, V. Pal'shin, D. Frederiks
on behalf of the Konus-Wind team,

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

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

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

E. Del Monte, Y. Evangelista, I. Lapshov, M. Rapisarda, A. Giuliani,
F. Fuschino, and M. Marisaldi, on behalf of the AGILE Team, and

A. von Kienlin, G. Lichti, and A. Rau, on behalf of the
INTEGRAL SPI-ACS GRB team, report:

Mars Odyssey (GRS), Konus-Wind, MESSENGER (GRNS), Suzaku-WAM,
Swift-BAT, AGILE-MCAL, and INTEGRAL SPI-ACS observed the long-duration
GRB 080122 at about 66764 s UT (18:32:44).  The burst was outside the
coded field of view of the BAT. The time history consists of several
multipeaked pulses with a total duration of ~150 sec.

We have triangulated it to the following, preliminary 3-sigma 
error box:
-----------------------------------------------
     RA(2000), deg            Dec(2000), deg
-----------------------------------------------
Center:
  191.352 (12h 45m 24s)   +27.014 (+27d 00' 49")
Corners:
  191.825 (12h 47m 18s)   +27.508 (+27d 30' 30")
  191.786 (12h 47m 09s)   +27.830 (+27d 49' 47")
  190.880 (12h 43m 31s)   +26.512 (+26d 30' 44")
  190.914 (12h 43m 39s)   +26.181 (+26d 10' 52")
-----------------------------------------------

The error box area is 1106 sq. arcmin.  Some improvement
is possible.

Preliminary analysis of the Konus-Wind data yields
a burst fluence of ~5x10^-5 erg/cm2 (in the 20 keV - 1 MeV range),
and an Epeak of the time-integrated spectrum of ~260 keV.

Detailed spectral parameters will be reported later.