Robuta

https://gcn.nasa.gov/circulars/22987 GCN - Circulars - 22987 - GRB 180720C: Enhanced Swift-XRT position gcn circulars grb enhanced swift https://gcn.nasa.gov/circulars/22991 GCN - Circulars - 22991 - GRB 180720C: LT observations gcn circulars grb lt observations