Robuta

https://test.gcn.nasa.gov/circulars/5212 GCN - Circulars - 5212 - GRB 060604: Swift detection of a burst with possible optical counterpart https://gcn.nasa.gov/circulars/5218 GCN - Circulars - 5218 - v2 - GRB 060604: redshift gcn circulars grb redshift