Robuta

https://test.gcn.nasa.gov/circulars/13938 GCN - Circulars - 13938 - GRB 121102A: Swift detection of a burst of a gcn circulars grb swift https://test.gcn.nasa.gov/circulars/13948 GCN - Circulars - 13948 - GRB 121102A: Swift/UVOT Upper Limits gcn circulars grb swift upper