AMPTE lithium tracer releases in the solar wind - Observations inside the magnetosphere

The transfer of mass from the solar wind to the magnetosphere and its transport and energization within the magnetosphere are investigated. Lithium atoms released on September 11 and 20, 1984 are utilized as the tracers in this study. The components and capabilities of the Charge Composition Explorer, which are to measure magnetospheric ion composition, are described. The data collected is analyzed and it is observed that Li ions did not enter the magnetosphere in sufficient quantities to be distinguished from the background particles. The modeling of solar wind and magnetosheath transport of Li ions is examined; more than 20 percent of the Li released on September 11, and 50 percent of the Li released on September 20 are mapped to the area around the stagnation point of the magnetopause.