TITLE:   GCN CIRCULAR
NUMBER:  33793
SUBJECT: GRB 230513A: Fermi GBM Final Real-time Localization
DATE:    23/05/13 22:27:50 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 SHORT GRB

At 22:17:19 UT on 13 May 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230513A (trigger 705709044.428824 / 230513929).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 160.7, Dec = 27.9 (J2000 degrees, equivalent to J2000 10h 42m, 27d 53'), with a statistical uncertainty of 7.5 degrees.

The angle from the Fermi LAT boresight is 89.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230513929/quicklook/glg_skymap_all_bn230513929.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/bn230513929/quicklook/glg_healpix_all_bn230513929.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230513929/quicklook/glg_lc_medres34_bn230513929.gif