TITLE:   GCN CIRCULAR
NUMBER:  34521
SUBJECT: GRB 230822A: Fermi GBM Final Real-time Localization
DATE:    23/08/22 23:59:33 GMT
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 23:48:54 UT on 22 Aug 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230822A (trigger 714440939.403512 / 230822992).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 143.4, Dec = 38.0 (J2000 degrees, equivalent to J2000 09h 33m, 38d 00'), with a statistical uncertainty of 18.4 degrees.

The angle from the Fermi LAT boresight is 78.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230822992/quicklook/glg_skymap_all_bn230822992.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/bn230822992/quicklook/glg_healpix_all_bn230822992.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230822992/quicklook/glg_lc_medres34_bn230822992.gif