TITLE:   GCN CIRCULAR
NUMBER:  33864
SUBJECT: GRB 230524A: Fermi GBM Final Real-time Localization
DATE:    23/05/24 06:16:55 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 06:06:35 UT on 24 May 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230524A (trigger 706601200.806822 / 230524255).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 177.5, Dec = 16.3 (J2000 degrees, equivalent to J2000 11h 50m, 16d 18'), with a statistical uncertainty of 3.2 degrees.

The angle from the Fermi LAT boresight is 93.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230524255/quicklook/glg_skymap_all_bn230524255.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/bn230524255/quicklook/glg_healpix_all_bn230524255.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230524255/quicklook/glg_lc_medres34_bn230524255.gif