Transport dynamics calculated under the full Mie scattering theory for micron and submicron lunar ejecta in selenocentric, cislunar, and geocentric space.
In 1967, Lunar Explorer 35 was launched from the Earth and placed into a stable orbit around the Moon. The data from the dust particle experiment on this spacecraft was essentially continuous over a 5-yr period from the time of insertion in lunar orbit. Analysis of this data has been interpreted to show that micron-sized lunar ejecta leave the Moon and traverse through selenocentric and cislunar space and obtain either interplanetary/heliocentric orbits or intercept the Earth's magnetosphere and move into geocentric orbits. Extensive studies of the orbital trajectories of lunar particles in this size range have now been conducted that include a calculation of the solar radiation force using the full Mie scattering theory. A significant flux of particles with radii less than 0.1 μ are found to intercept the Earth's magnetopause surface. This flux is shown to be strongly dependent upon both the particle's density and its index of refraction.
Lunar and Planetary Science Conference Proceedings
- Pub Date:
- Lunar Dust;
- Mie Scattering;
- Transport Theory;
- Cislunar Space;
- Computerized Simulation;
- Earth Orbital Environments;
- Lunar Orbits;
- Trajectory Analysis;
- Lunar and Planetary Exploration; Moon;
- Interplanetary Dust: Dynamics;
- Interplanetary Dust: Moon;
- Interplanetary Dust: Earth Magnetosphere