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GCN Circular 27887

Subject
GRB 200604A: Fermi GBM Final Real-time Localization
Date
2020-06-04T20:10:21Z (4 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 20:00:05 UT on 4 Jun 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 200604A (trigger 612993610.010234 / 200604833).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 179.5, Dec = -3.9 (J2000 degrees, equivalent to J2000 11h 58m, -3d 53'), with a statistical uncertainty of 10.1 degrees.

The angle from the Fermi LAT boresight is 54.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200604833/quicklook/glg_skymap_all_bn200604833.png

The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200604833/quicklook/glg_healpix_all_bn200604833.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200604833/quicklook/glg_lc_medres34_bn200604833.gif
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