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GCN Circular 31782

Subject
GRB 220323A: Fermi GBM Final Real-time Localization
Date
2022-03-23T12:20:36Z (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 SHORT GRB

At 12:10:11 UT on 23 Mar 2022, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 220323A (trigger 669730216.566582 / 220323507).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 355.2, Dec = 71.9 (J2000 degrees, equivalent to J2000 23h 40m, 71d 54'), with a statistical uncertainty of 9.9 degrees.

The angle from the Fermi LAT boresight is 25.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220323507/quicklook/glg_skymap_all_bn220323507.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/bn220323507/quicklook/glg_healpix_all_bn220323507.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220323507/quicklook/glg_lc_medres34_bn220323507.gif
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