Robuta

https://gcn.nasa.gov/circulars/3839 GCN - Circulars - 3839 - GRB050820B: BAT-Swift detection of a bright GRB of a gcn circulars bat https://gcn.nasa.gov/circulars/3844 GCN - Circulars - 3844 - GRB050820B XMM-Newton observation gcn circulars xmm newton observation