TITLE:   GCN CIRCULAR
NUMBER:  39294
SUBJECT: GRB 250212A: Fermi GBM Final Real-time Localization
DATE:    25/02/12 01:00:30 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 00:49:53 UT on 12 Feb 2025, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 250212A (trigger 761014198.925334 / 250212035).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 282.5, Dec = 52.8 (J2000 degrees, equivalent to J2000 18h 49m, 52d 47'), with a statistical uncertainty of 8.1 degrees.

The angle from the Fermi LAT boresight is 127.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250212035/quicklook/glg_skymap_all_bn250212035.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/bn250212035/quicklook/glg_healpix_all_bn250212035.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250212035/quicklook/glg_lc_medres34_bn250212035.gif