GCN Circular 31835
Subject
GRB 220405A: Fermi GBM Final Localization
Date
2022-04-05T15:43:46Z (3 years ago)
From
Elisabetta Bissaldi at INFN,Bari <elisabetta.bissaldi@ba.infn.it>
The Fermi GBM team reports the detection of a likely LONG GRB.
At 06:11:39.12 UT on 5 Apr 2022, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 220405A (trigger 670831904.120598 / 220405258).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 29.4, Dec = -22.8 (J2000 degrees, equivalent to J2000 01h 57m, -22d 48'), with a statistical uncertainty of 1.2 degrees.
The angle from the Fermi LAT boresight is 18.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220405258/quicklook/glg_skymap_all_bn220405258.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/bn220405258/quicklook/glg_healpix_all_bn220405258.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220405258/quicklook/glg_lc_medres34_bn220405258.gif