Robuta

https://gcn.nasa.gov/circulars/29252 GCN - Circulars - 29252 - GRB 210104A: Nanshan/NEXT optical powerlaw decay gcn circulars grb nanshan next optical https://gcn.nasa.gov/circulars/29268?query=210104A GCN - Circulars - 29268 - GRB 210104A: CALET Gamma-Ray Burst Monitor detection gamma ray burst gcn circulars grb