Robuta

https://gcn.nasa.gov/circulars/30735 GCN - Circulars - 30735 - Fermi GRB 210827B: Global MASTER-Net observations report global master gcn circulars fermi grb https://gcn.nasa.gov/circulars/30727 GCN - Circulars - 30727 - GRB 210827B: BALROG localization (Fermi Trigger 651751821 / GRB 210827424) gcn circulars grb