[vsnet-grb-info 25719] GRB 200525A: Fermi GBM Final Real-time Localization

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  27819
SUBJECT: GRB 200525A: Fermi GBM Final Real-time Localization
DATE:    20/05/25 14:50:33 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 14:40:28 UT on 25 May 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 200525A (trigger 612110433.485766 / 200525611).

The on-ground calculated location, using the Fermi GBM trigger data, is RA = 20.6, Dec = -8.5 (J2000 degrees, equivalent to J2000 01h 22m, -8d 30'), with a statistical uncertainty of 5.7 degrees.

The angle from the Fermi LAT boresight is 65.0 degrees.

The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200525611/quicklook/glg_skymap_all_bn200525611.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/bn200525611/quicklook/glg_healpix_all_bn200525611.fit

The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200525611/quicklook/glg_lc_medres34_bn200525611.gif