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GCN Circular 34631

Subject
GRB 230906A: Fermi GBM Final Localizationn
Date
2023-09-06T15:07:02Z (7 months ago)
From
Elisabetta Bissaldi at Politecnico and INFN Bari <elisabetta.bissaldi@ba.infn.it>
Via
email
The Fermi GBM team reports the detection of a likely SHORT GRB

"At 12:55:07.15 UT on 06 September 2023, the Fermi Gamma-ray Burst Monitor (GBM)
triggered and located GRB 230906A (trigger 715697712/230906538).

The on-ground calculated location, using the Fermi GBM trigger data,
is RA = 81.37, Dec = -47.41 (J2000 degrees, equivalent to J2000 05h 25m, -47d 24'),
with a statistical uncertainty of 2.79 degrees.

The angle from the Fermi LAT boresight is 55.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230906538/quicklook/glg_skymap_all_bn230906538.png

The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230906538/quicklook/glg_healpix_all_bn230906538.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230906538/quicklook/glg_lc_medres34_bn230906538.gif  "




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