TITLE:   GCN CIRCULAR
NUMBER:  30427
SUBJECT: GRB 210709A: Fermi GBM Final Real-time Localization
DATE:    21/07/09 04:59:22 GMT
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 04:49:04 UT on 9 Jul 2021, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 210709A (trigger 647498949.307986 / 210709201).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 295.3, Dec = -44.2 (J2000 degrees, equivalent to J2000 19h 41m, -44d 12'), with a statistical uncertainty of 3.9 degrees.

The angle from the Fermi LAT boresight is 75.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn210709201/quicklook/glg_skymap_all_bn210709201.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/bn210709201/quicklook/glg_healpix_all_bn210709201.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn210709201/quicklook/glg_lc_medres34_bn210709201.gif