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GCN Circular 31693

Subject
GRB 220306A: Fermi GBM Final Real-time Localization
Date
2022-03-06T07:30:08Z (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 07:20:00 UT on 6 Mar 2022, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 220306A (trigger 668244005.521712 / 220306306).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 184.9, Dec = -30.0 (J2000 degrees, equivalent to J2000 12h 19m, -30d 00'), with a statistical uncertainty of 6.5 degrees.

The angle from the Fermi LAT boresight is 118.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220306306/quicklook/glg_skymap_all_bn220306306.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/bn220306306/quicklook/glg_healpix_all_bn220306306.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220306306/quicklook/glg_lc_medres34_bn220306306.gif
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