TITLE:   GCN CIRCULAR
NUMBER:  40728
SUBJECT: GRB 250614A: Fermi GBM Final Real-time Localization
DATE:    25/06/14 12:28:37 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 12:18:05 UT on 14 Jun 2025, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 250614A (trigger 771596290.023932 / 250614513).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 343.1, Dec = 54.6 (J2000 degrees, equivalent to J2000 22h 52m, 54d 36'), with a statistical uncertainty of 1.0 degrees.

The angle from the Fermi LAT boresight is 1.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250614513/quicklook/glg_skymap_all_bn250614513.png

The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250614513/quicklook/glg_healpix_all_bn250614513.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250614513/quicklook/glg_lc_medres34_bn250614513.gif