[vsnet-grb-info 25133] GRB 200227A: Fermi GBM Final Real-time Localization

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  27233
SUBJECT: GRB 200227A: Fermi GBM Final Real-time Localization
DATE:    20/02/27 07:30:29 GMT
FROM:    Fermi GBM Team at MSFC/Fermi-GBM  <do_not_reply at GIOC.nsstc.nasa.gov>

The Fermi GBM team reports the detection of a likely LONG GRB

At 07:20:08 UT on 27 Feb 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 200227A (trigger 604480813.702942 / 200227306).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 56.9, Dec = 6.3 (J2000 degrees, equivalent to J2000 03h 47m, 6d 17'), with a statistical uncertainty of 1.0 degrees.

The angle from the Fermi LAT boresight is 19.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200227306/quicklook/glg_skymap_all_bn200227306.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/bn200227306/quicklook/glg_healpix_all_bn200227306.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200227306/quicklook/glg_lc_medres34_bn200227306.gif