Observations of the Sun–Earth system within the CORONAS-F mission (July 31, 2001 to December 6, 2005)

Abstract

The results of the study of solar active phenomena and their manifestations in the near-Earth space observed in the declining phase of the current activity cycle within the CORONAS-F space mission are presented. During its orbital operation from July 31, 2001 to December 6, 2005, the CORONAS-F satellite recorded a series of outstanding solar events and associated effects in solar cosmic rays in the Earth's magnetosphere. The paper contains a morphological description of outstanding solar events of November 4, 2001, October–November 2003, November 6–10, 2004, January and September 2005 and the related effects in the geospace such as detection of flare-generated gamma radiation, enhanced energetic particle fluxes, and solar neutrons; deformation of the magnetosphere; displacements of the polar cap boundary and penetration boundary of particles to small heights; changes of the boundary positions, maxima, and dynamics of the radiation belts during strong magnetic storms.