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GCN Circular 33504

Subject
GRB 230322A: Fermi GBM Final Real-time Localization
Date
2023-03-22T21:08:07Z (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 20:57:41 UT on 22 Mar 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230322A (trigger 701211466.278488 / 230322873).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 12.3, Dec = 30.7 (J2000 degrees, equivalent to J2000 00h 49m, 30d 41'), with a statistical uncertainty of 7.3 degrees.

The angle from the Fermi LAT boresight is 100.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230322873/quicklook/glg_skymap_all_bn230322873.png

The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230322873/quicklook/glg_healpix_all_bn230322873.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230322873/quicklook/glg_lc_medres34_bn230322873.gif
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