TITLE:   GCN CIRCULAR
NUMBER:  33524
SUBJECT: GRB 230328A: Fermi GBM Final Real-time Localization
DATE:    23/03/28 14:08:58 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 13:58:24 UT on 28 Mar 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230328A (trigger 701704709.245818 / 230328582).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 196.8, Dec = 1.1 (J2000 degrees, equivalent to J2000 13h 07m, 1d 06'), with a statistical uncertainty of 8.4 degrees.

The angle from the Fermi LAT boresight is 47.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230328582/quicklook/glg_skymap_all_bn230328582.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/bn230328582/quicklook/glg_healpix_all_bn230328582.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230328582/quicklook/glg_lc_medres34_bn230328582.gif