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TITLE:   GCN CIRCULAR
NUMBER:  27171
SUBJECT: GRB 200223A: Fermi GBM Final Real-time Localization
DATE:    20/02/23 19:42:25 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 19:32:03 UT on 23 Feb 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 200223A (trigger 604179128.242596 / 200223814).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 248.4, Dec = -55.8 (J2000 degrees, equivalent to J2000 16h 33m, -55d 47'), with a statistical uncertainty of 7.5 degrees.

The angle from the Fermi LAT boresight is 44.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200223814/quicklook/glg_skymap_all_bn200223814.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/bn200223814/quicklook/glg_healpix_all_bn200223814.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200223814/quicklook/glg_lc_medres34_bn200223814.gif