TITLE:   GCN CIRCULAR
NUMBER:  37197
SUBJECT: GRB 240817A: Fermi GBM Final Real-time Localization
DATE:    24/08/17 01:32:40 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 01:22:07 UT on 17 Aug 2024, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 240817A (trigger 745550532.876778 / 240817057).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 227.0, Dec = -45.8 (J2000 degrees, equivalent to J2000 15h 07m, -45d 47'), with a statistical uncertainty of 7.8 degrees.

The angle from the Fermi LAT boresight is 60.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240817057/quicklook/glg_skymap_all_bn240817057.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/bn240817057/quicklook/glg_healpix_all_bn240817057.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2024/bn240817057/quicklook/glg_lc_medres34_bn240817057.gif