GCN Circular 25586
Subject
GRB 190831A: Fermi GBM Final Real-time Localization
Date
2019-08-31T08:07:51Z (6 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 07:57:31 UT on 31 Aug 2019, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 190831A (trigger 588931056.191116 / 190831332).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 65.6, Dec = 14.9 (J2000 degrees, equivalent to J2000 04h 22m, 14d 54'), with a statistical uncertainty of 5.0 degrees.
The angle from the Fermi LAT boresight is 99.0 degrees.
The skymap can be found here:
http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190831332/quicklook/glg_skymap_all_bn190831332.png
The HEALPix FITS file, including the estimated localization systematic, can be found here:
http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190831332/quicklook/glg_healpix_all_bn190831332.fit
The GBM light curve can be found here:
http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190831332/quicklook/glg_lc_medres34_bn190831332.gif