TITLE:   GCN CIRCULAR
NUMBER:  33542
SUBJECT: GRB 230330A: Fermi GBM Final Real-time Localization
DATE:    23/03/30 04:44:38 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 04:34:29 UT on 30 Mar 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230330A (trigger 701843674.478352 / 230330191).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 282.7, Dec = -12.6 (J2000 degrees, equivalent to J2000 18h 50m, -12d 35'), with a statistical uncertainty of 4.0 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/bn230330191/quicklook/glg_skymap_all_bn230330191.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/bn230330191/quicklook/glg_healpix_all_bn230330191.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230330191/quicklook/glg_lc_medres34_bn230330191.gif