Fig. 3From: Statistical study on propagation characteristics of Omega signals (VLF) in magnetosphere detected by the Akebono satellite a Duration of data processed in the magnetic and electric field with longitude restricted to ±10°. b Omega signal propagation for the Norway station in the magnetic field and c the electric field. Rectangle indicates the location of the Norway station at latitude 55.96° N and longitude 100.72° EBack to article page