GCN Circular 24695
Subject
GRB 190531B: Fermi GBM Final Real-time Localization
Date
2019-05-31T20:21:23Z (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 20:10:12 UT on 31 May 2019, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 190531B (trigger 581026217.141598 / 190531840).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 20.2, Dec = -39.4 (J2000 degrees, equivalent to J2000 01h 20m, -39d 23'), with a statistical uncertainty of 1.0 degrees.
The angle from the Fermi LAT boresight is 22.0 degrees.
The skymap can be found here:
http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190531840/quicklook/glg_skymap_all_bn190531840.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/bn190531840/quicklook/glg_healpix_all_bn190531840.fit
The GBM light curve can be found here:
http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190531840/quicklook/glg_lc_medres34_bn190531840.gif
