GCN Circular 31758
Subject
GRB 220315A: Fermi GBM Final Real-time Localization
Date
2022-03-15T02:37:20Z (3 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 02:25:56 UT on 15 Mar 2022, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 220315A (trigger 669003961.874798 / 220315101).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 236.1, Dec = -76.8 (J2000 degrees, equivalent to J2000 15h 44m, -76d 47'), with a statistical uncertainty of 3.5 degrees.
The angle from the Fermi LAT boresight is 21.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220315101/quicklook/glg_skymap_all_bn220315101.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/bn220315101/quicklook/glg_healpix_all_bn220315101.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220315101/quicklook/glg_lc_medres34_bn220315101.gif