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GCN Circular 33021

Subject
GRB 221205A: Fermi GBM Final Real-time Localization
Date
2022-12-05T00:42:21Z (a year 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 00:31:56 UT on 5 Dec 2022, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 221205A (trigger 691893121.981046 / 221205022).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 220.1, Dec = 54.5 (J2000 degrees, equivalent to J2000 14h 40m, 54d 30'), with a statistical uncertainty of 7.7 degrees.

The angle from the Fermi LAT boresight is 49.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn221205022/quicklook/glg_skymap_all_bn221205022.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/bn221205022/quicklook/glg_healpix_all_bn221205022.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn221205022/quicklook/glg_lc_medres34_bn221205022.gif
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