Robuta

https://test.gcn.nasa.gov/circulars/19098 GCN - Circulars - 19098 - GRB 160227A: Swift detection of a burst with an optical counterpart https://gcn.nasa.gov/circulars/19103 GCN - Circulars - 19103 - GRB 160227A: MAXI/GSC detection gcn circulars grb maxi gsc