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GCN Circular 28349

Subject
GRB 200903A: Fermi GBM Final Real-time Localization
Date
2020-09-03T00:55:04Z (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 00:44:19 UT on 3 Sep 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 200903A (trigger 620786664.250206 / 200903031).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 159.0, Dec = 54.9 (J2000 degrees, equivalent to J2000 10h 35m, 54d 53'), with a statistical uncertainty of 3.6 degrees.

The angle from the Fermi LAT boresight is 58.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200903031/quicklook/glg_skymap_all_bn200903031.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/bn200903031/quicklook/glg_healpix_all_bn200903031.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200903031/quicklook/glg_lc_medres34_bn200903031.gif
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