TITLE:   GCN CIRCULAR
NUMBER:  30050
SUBJECT: GRB 210519A: Fermi GBM Final Localization
DATE:    21/05/19 15:38:55 GMT
FROM:    Rachel Dunwoody at UCD  <rachel.dunwoody@ucdconnect.ie>

The Fermi GBM team reports the detection of a likely long GRB.

At 06:38:53.86 UT on 19 May 2021, the Fermi Gamma-ray Burst Monitor (GBM)
triggered and located GRB 210519A (trigger 643099138 / 210519277).

The on-ground calculated location, using the Fermi GBM trigger data, is RA
= 187.9, Dec = -40.2(J2000 degrees, equivalent to J2000 12h 31m, -40d 12'),
with a statistical uncertainty of 4.3 degrees.

The angle from the Fermi LAT boresight is 75 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn210519277/quicklook/glg_skymap_all_bn210519277.png

The HEALPix FITS file, including the estimated localization systematic, can
be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn210519277/quicklook/glg_healpix_all_bn210519277.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn210519277/quicklook/glg_lc_medres34_bn210519277.gif