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GCN Circular 32946

Subject
GRB 221118A: Fermi GBM Final Real-time Localization
Date
2022-11-18T13:58:58Z (2 years ago)
From
Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>
The Fermi GBM team reports the detection of a likely LONG GRB

At 13:48:19 UT on 18 Nov 2022, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 221118A (trigger 690472104.534408 / 221118575).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 276.5, Dec = -45.3 (J2000 degrees, equivalent to J2000 18h 26m, -45d 17'), with a statistical uncertainty of 6.3 degrees.

The angle from the Fermi LAT boresight is 112.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn221118575/quicklook/glg_skymap_all_bn221118575.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/bn221118575/quicklook/glg_healpix_all_bn221118575.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn221118575/quicklook/glg_lc_medres34_bn221118575.gif
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