GCN Circular 32075
Subject
GRB 220521A: Fermi GBM Final Real-time Localization
Date
2022-05-21T23:30:48Z (2 years ago)
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 SHORT GRB
At 23:20:21 UT on 21 May 2022, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 220521A (trigger 674868026.727134 / 220521972).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 292.6, Dec = 3.9 (J2000 degrees, equivalent to J2000 19h 30m, 3d 53'), with a statistical uncertainty of 13.6 degrees.
The angle from the Fermi LAT boresight is 88.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220521972/quicklook/glg_skymap_all_bn220521972.png
The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220521972/quicklook/glg_healpix_all_bn220521972.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220521972/quicklook/glg_lc_medres34_bn220521972.gif
