Robuta

https://test.gcn.nasa.gov/circulars/26901 GCN - Circulars - 26901 - GRB 200127A: Swift-XRT refined Analysis gcn circulars grb swift xrt https://test.gcn.nasa.gov/circulars/26899 GCN - Circulars - 26899 - GRB 200127A: AbAO optical upper limit gcn circulars grb abao optical