[vsnet-grb-info 7567] GRB 090408b: IPN Triangulation

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  9125
SUBJECT: GRB 090408b:  IPN Triangulation
DATE:    09/04/12 10:22:03 GMT
FROM:    Dmitry Frederiks at Ioffe Institute  <fred at mail.ioffe.ru>

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

K. Hurley and T. Cline, on behalf of the Mars Odyssey
and Konus GRB teams,

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,

A. von Kienlin, G. Lichti, and A. Rau, and K. Hurley on behalf of the
INTEGRAL SPI-ACS team,

E. Costa, E. Del Monte, I. Donnarumma, Y. Evangelista, M. Feroci,
I. Lapshov, F. Lazzarotto, L. Pacciani, M. Rapisarda, P. Soffitta,
for the SuperAGILE team,

G. Di Cocco, F. Fuschino, M. Galli, C. Labanti, M. Marisaldi,
on behalf of the AGILE MCAL team report:


Konus-Wind, Konus-RF, Mars-Odyssey (GRS and HEND), and INTEGRAL-SPI-ACS
observed the intense GRB 090408b (Golenetskii et al., GCN 9121).  It was
also observed by AGILE-MCAL and SuperAGILE (outside the coded field of view).

We have triangulated it to the following 3-sigma error box:

-----------------------------------------------
         RA(2000), deg            Dec(2000), deg
-----------------------------------------------
Center:
     43.98 (02h 55m 56s)    +26.61 (+26d 36' 36")
Corners:
     43.95 (02h 55m 48s)    +27.59 (+27d 35' 24")
     42.98 (02h 51m 55s)    +27.78 (+27d 46' 48")
     44.05 (02h 56m 12s)    +25.64 (+25d 38' 24")
     44.97 (02h 59m 53s)    +25.49 (+25d 29' 24")
-----------------------------------------------

The error box area is 1.48 sq. deg.
This error box may be improved.

IPN triangulation map is avalable at
at http://www.ioffe.ru/LEA/GRBs/GRB090408_T71198/IPN
--