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GCN Circular 25240

Subject
GRB 190731A: Fermi GBM Final Real-time Localization
Date
2019-07-31T22:49:31Z (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 22:38:20 UT on 31 Jul 2019, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 190731A (trigger 586305505.368608 / 190731943).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 342.8, Dec = -73.9 (J2000 degrees, equivalent to J2000 22h 51m, -73d 54'), with a statistical uncertainty of 1.0 degrees.

The angle from the Fermi LAT boresight is 43.0 degrees.

The skymap can be found here:
http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190731943/quicklook/glg_skymap_all_bn190731943.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/bn190731943/quicklook/glg_healpix_all_bn190731943.fit

The GBM light curve can be found here:
http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2019/bn190731943/quicklook/glg_lc_medres34_bn190731943.gif
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