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GCN Circular 32919

Subject
GRB 221108A: Fermi GBM Final Localization
Date
2022-11-08T16:06:58Z (2 years ago)
From
Rachel Dunwoody at UCD <rachel.dunwoody@ucdconnect.ie>
The Fermi GBM team reports the detection of a likely LONG GRB.

At 11:19:33.13 UT on 8 Nov 2022, the Fermi Gamma-ray Burst Monitor (GBM)
triggered and located GRB 221108A (trigger 689599178 / 221108472).

The on-ground calculated location, using the Fermi GBM trigger data, is RA
= 346.7, Dec = -54.7 (J2000 degrees, equivalent to J2000 23h 07m, -54d
42'), with a statistical uncertainty of 12.8 degrees.

The angle from the Fermi LAT boresight is 133 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn221108472/quicklook/glg_skymap_all_bn221108472.png

The HEALPix FITS file, including the estimated localization systematic, can
be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn221108472/quicklook/glg_healpix_all_bn221108472.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn221108472/quicklook/glg_lc_medres34_bn221108472.gif
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