TITLE: GCN CIRCULAR NUMBER: 31796 SUBJECT: GRB 220326A: Fermi GBM Final Localization DATE: 22/03/26 15:16:01 GMT FROM: Joshua Wood at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely LONG GRB At 04:09:32.48 UT on 26 Mar 2022, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 220326A (trigger 669960577 / 220326173). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 185.6, Dec = -31.0 (J2000 degrees, equivalent to J2000 12h 22m, +-31d 00'), with a statistical uncertainty of 11.6 degrees. The angle from the Fermi LAT boresight is 96.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220326173/quicklook/glg_skymap_all_bn220326173.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/bn220326173/quicklook/glg_healpix_all_bn220326173.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220326173/quicklook/glg_lc_medres34_bn220326173.gif