Robuta

https://test.gcn.nasa.gov/circulars/24261 GCN - Circulars - 24261 - GRB 190427A: Swift detection of a short burst of a gcn circulars grb https://gcn.nasa.gov/circulars/24330 GCN - Circulars - 24330 - GRB 190427A, Swift-BAT refined analysis gcn circulars grb swift bat