[vsnet-grb-info 25060] GRB 200221A: Fermi GBM Final Real-time Localization

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  27159
SUBJECT: GRB 200221A: Fermi GBM Final Real-time Localization
DATE:    20/02/21 04:03:14 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 SHORT GRB

At 03:52:58 UT on 21 Feb 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 200221A (trigger 603949983.711252 / 200221162).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 157.1, Dec = 33.1 (J2000 degrees, equivalent to J2000 10h 28m, 33d 06'), with a statistical uncertainty of 5.0 degrees.

The angle from the Fermi LAT boresight is 122.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200221162/quicklook/glg_skymap_all_bn200221162.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/bn200221162/quicklook/glg_healpix_all_bn200221162.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200221162/quicklook/glg_lc_medres34_bn200221162.gif