[AAVSO-HEN] GRB 090802B: Fermi GBM detection

[grb at aavso.org]

The following is a GCN Circular circulated via the AAVSO network.
For an archive and more information on circulars visit:
http://lheawww.gsfc.nasa.gov/docs/gamcosray/legr/bacodine/gcn3_archive.html

TITLE:   GCN CIRCULAR
NUMBER:  9744
SUBJECT: GRB 090802B: Fermi GBM detection
DATE:    09/08/03 22:04:39 GMT
FROM:    Alexander van der Horst at NASA/MSFC  <Alexander.J.VanDerHorst at nasa.gov>

A.J. van der Horst (NASA/MSFC/ORAU) reports on behalf of the Fermi GBM 
Team:

"At 15:58:23.44 UT on 2 August 2009, the Fermi Gamma-Ray Burst Monitor
triggered and located GRB 090208B (trigger 270921505 / 090802666).
The on-ground calculated location, using the GBM trigger data, is
RA = 267.0, DEC = -71.8 (J2000 degrees, equivalent to 17h48m, -71d46'),
with an uncertainty of 10.7 degrees (radius, 1-sigma containment,
statistical only; there is additionally a systematic error which
is currently estimated to be 2 to 3 degrees).
The angle from the Fermi LAT boresight is 104 degrees.
Since the source is weak, the time-averaged spectrum is poorly constrained."