GCN Circular 33445
Subject
GRB 230310A: Fermi GBM Final Real-time Localization
Date
2023-03-10T00:55:20Z (a year 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 LONG GRB
At 00:45:01 UT on 10 Mar 2023, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 230310A (trigger 700101906.130722 / 230310031).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 257.6, Dec = -23.5 (J2000 degrees, equivalent to J2000 17h 10m, -23d 30'), with a statistical uncertainty of 7.2 degrees.
The angle from the Fermi LAT boresight is 120.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230310031/quicklook/glg_skymap_all_bn230310031.png
The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230310031/quicklook/glg_healpix_all_bn230310031.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230310031/quicklook/glg_lc_medres34_bn230310031.gif
