The Spatial Structure of the Equatorial Anomaly in Accordance with Results of Satellite Radio Sounding from Altitudes Below the Maximum of the F2 Layer

We consider the results of an ionospheric sounding experiment onboard the mir space station (MSS) in the equatorial anomaly region and the specifics of the obtained ionograms. The experiment lasted from August 1998 and to June 1999. The station was orbiting Earth at 330–400 km and 51.6° inclination. The sounder's operating frequencies were in the range from 1 to 16 MHz.