Boundary of energetic electrons during the January 13-14, 1967, magnetic storm

Abstract

Measurements of energetic electron fluxes were made aboard the synchronous satellite ATS 1 (1966–110A) during the magnetic storm of January 13–14, 1967. Between 0007 and about 0105 UT (approximately 1400–1500 local time) on January 14 the electron fluxes dropped to background levels in a manner, which, when associated with the on board magnetometer data, suggests that the boundary of the magnetosphere was compressed to less than 6.6 RE on the day side of the magnetosphere.