Robuta

https://gcn.nasa.gov/circulars/32574 GCN - Circulars - 32574 - GRB 220921A: Fermi GBM detection gcn circulars grb fermi gbm https://test.gcn.nasa.gov/circulars/32568 GCN - Circulars - 32568 - GRB 220921A: Fermi-LAT detection gcn circulars grb fermi lat