Robuta

https://gcn.nasa.gov/circulars/34490 GCN - Circulars - 34490 - GRB 230818A: Leavitt Observatory upper limit gcn circulars grb leavitt observatory https://gcn.nasa.gov/circulars/34486 GCN - Circulars - 34486 - GRB 230818A: Swift/UVOT Detection gcn circulars grb swift detection