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GCN Circular 27294

Subject
GRB 200303A: Fermi GBM Final Real-time Localization
Date
2020-03-03T02:44:36Z (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 02:34:23 UT on 3 Mar 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 200303A (trigger 604895668.847358 / 200303107).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 207.4, Dec = 50.8 (J2000 degrees, equivalent to J2000 13h 49m, 50d 47'), with a statistical uncertainty of 3.8 degrees.

The angle from the Fermi LAT boresight is 108.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200303107/quicklook/glg_skymap_all_bn200303107.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/bn200303107/quicklook/glg_healpix_all_bn200303107.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200303107/quicklook/glg_lc_medres34_bn200303107.gif
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