TITLE:   GCN CIRCULAR
NUMBER:  35814
SUBJECT: GRB 240227A: Fermi GBM Final Real-time Localization
DATE:    24/02/27 04:48:09 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 04:40:15 UT on 27 Feb 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 240227A (trigger 730701620.164308 / 240227195).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 69.6, Dec = -61.2 (J2000 degrees, equivalent to J2000 04h 38m, -61d 12'), with a statistical uncertainty of 3.6 degrees.

The angle from the Fermi LAT boresight is 13.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240227195/quicklook/glg_skymap_all_bn240227195.png

The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240227195/quicklook/glg_healpix_all_bn240227195.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240227195/quicklook/glg_lc_medres34_bn240227195.gif