GCN Circular 26581
Subject
GRB 191225B: Fermi GBM Final Real-time Localization
Date
2019-12-25T17:47:56Z (5 years ago)
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 17:37:51 UT on 25 Dec 2019, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 191225B (trigger 598988276.867438 / 191225735).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 145.8, Dec = -7.2 (J2000 degrees, equivalent to J2000 09h 43m, -7d 12'), with a statistical uncertainty of 2.8 degrees.
The angle from the Fermi LAT boresight is 61.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn191225735/quicklook/glg_skymap_all_bn191225735.png
The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn191225735/quicklook/glg_healpix_all_bn191225735.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn191225735/quicklook/glg_lc_medres34_bn191225735.gif