TITLE:   GCN CIRCULAR
NUMBER:  27482
SUBJECT: GRB 200403A: Fermi GBM Final Real-time Localization
DATE:    20/04/03 21:40:37 GMT
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 21:30:16 UT on 3 Apr 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 200403A (trigger 607642221.34614 / 200403896).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 81.3, Dec = 73.3 (J2000 degrees, equivalent to J2000 05h 25m, 73d 17'), with a statistical uncertainty of 1.1 degrees.

The angle from the Fermi LAT boresight is 161.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200403896/quicklook/glg_skymap_all_bn200403896.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/bn200403896/quicklook/glg_healpix_all_bn200403896.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200403896/quicklook/glg_lc_medres34_bn200403896.gif