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GCN Circular 27472

Subject
GRB 200402A: Fermi GBM Final Real-time Localization
Date
2020-04-02T09:49:59Z (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 09:39:37 UT on 2 Apr 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 200402A (trigger 607513182.90837 / 200402403).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 50.5, Dec = 42.3 (J2000 degrees, equivalent to J2000 03h 22m, 42d 17'), with a statistical uncertainty of 5.1 degrees.

The angle from the Fermi LAT boresight is 88.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200402403/quicklook/glg_skymap_all_bn200402403.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/bn200402403/quicklook/glg_healpix_all_bn200402403.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200402403/quicklook/glg_lc_medres34_bn200402403.gif
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