TITLE:   GCN CIRCULAR
NUMBER:  44604
SUBJECT: GRB 260514A: Fermi GBM Final Real-time Localization
DATE:    26/05/14 05:05:36 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 04:56:40 UT on 14 May 2026, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 260514A (trigger 800427405.55421 / 260514206).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 231.1, Dec = -37.7 (J2000 degrees, equivalent to J2000 15h 24m, -37d 42'), with a statistical uncertainty of 10.9 degrees.

The angle from the Fermi LAT boresight is 97.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260514206/quicklook/glg_skymap_all_bn260514206.png

The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260514206/quicklook/glg_healpix_all_bn260514206.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260514206/quicklook/glg_lc_medres34_bn260514206.gif