Robuta

https://gcn.nasa.gov/circulars/14635?query=130513A GCN - Circulars - 14635 - GRB 130513A: Swift-XRT detection of the afterglow. of the gcn circulars grb https://gcn.nasa.gov/circulars/14642 GCN - Circulars - 14642 - v2 - GRB 130513A: RATIR Optical and NIR Observations gcn circulars grb