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GCN Circular 32443

Subject
GRB 220804A: Fermi GBM Final Localization
Date
2022-08-04T20:45:16Z (2 years ago)
From
Joshua Wood at MSFC/Fermi-GBM <joshua.r.wood@nasa.gov>
The Fermi GBM team reports the detection of a likely LONG GRB

At 02:08:32.77 UT on 4 Aug 2022, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 220804A (trigger 681271717 / 220804089).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 159.4, Dec = 9.4 (J2000 degrees, equivalent to J2000 10h 38m, +9d 24'), with a statistical uncertainty of 6.5 degrees.

The angle from the Fermi LAT boresight is 81.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220804089/quicklook/glg_skymap_all_bn220804089.png

The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220804089/quicklook/glg_healpix_all_bn220804089.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220804089/quicklook/glg_lc_medres34_bn220804089.gif
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