TITLE: GCN CIRCULAR NUMBER: 40702 SUBJECT: GRB 250612B (250612519/771424081): Fermi GBM Final Localization DATE: 25/06/12 14:23:44 GMT FROM: eliza.neights@gmail.com
The Fermi GBM team reports the detection of a likely LONG GRB
"At 12:27:56.19 UT on 12 June 2025, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 250612B (trigger 771424081/250612519).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 231.28, Dec = -29.05 (J2000 degrees, equivalent to J2000 15h 25m, -29d 03'), with a statistical uncertainty of 2.0 degrees.
The angle from the Fermi LAT boresight is 71.04 degrees.
The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250612519/q...
The HEALPix FITS file, including the estimated localization systematic, can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250612519/q...
The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250612519/q..."
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