Robuta

https://gcn.nasa.gov/circulars/38643 GCN - Circulars - 38643 - GRB 241221A: Fermi GBM Final Real-time Localization real time gcn circulars grb https://gcn.nasa.gov/circulars/38644 GCN - Circulars - 38644 - Fermi GRB 241221A: Global MASTER-Net observations report global master gcn circulars fermi grb