GCN Circular 23768
E. Bissaldi (Politecnico & INFN Bari), C. Meegan (UAH) and P. Veres (UAH) report on behalf of the Fermi GBM Team: "At 07:19:07.57 UT on 22 January 2019, the Fermi Gamma-Ray Burst Monitor triggered and located GRB 190122A (trigger 569834352 / 190122305), which was also detected by the Fermi/LAT (Longo et al. 2019, GCN 23767). The GBM on-ground location is consistent with the LAT position. The angle from the Fermi LAT boresight at the GBM trigger time is 26 degrees. The GBM light curve consists of a single FRED-like pulse with a duration (T90) of about 54 s (50-300 keV). The time-averaged spectrum from T0+0.8 s to T0+22.3 s is adequately fit by a simple power law function with index -1.59 +/- 0.01. The event fluence (10-1000 keV) in this time interval is (3.95 +/- 0.10)E-7 erg/cm^2. The 1-sec peak photon flux measured starting from T0+5.6 s in the 10-1000 keV band is 6.3 +/- 0.3 ph/s/cm^2. The spectral analysis results presented above are preliminary; final results will be published in the GBM GRB Catalog."