Integration of Geophysical Parameters for Electrodynamic Tether Propulsion Modeling Environment

Abstract

Electrodynamic tether propulsion enables a future for very small satellites to operate over theoretically infinite orbital lifetimes, subjected to material lifetimes in the space environment. The advantage of electrodynamic tethers relying on the in-situ collection of electrons for propulsion from the ionosphere makes this an attractive alternative to consumable propulsion systems. However, the extremely complex electrodynamics and mechanical dynamics of operating this system in the space environment requires a robust modeling environment. This report explores the recent developments to integrate updated geophysical parameters into the TEMPEST modeling software to support this goal. The discussion is introduced by a detailed exploration of the fundamental tradeoffs of a CubeSat versus traditional satellite system and how electrodynamic tethers can bridge this gap. The report is then concluded by a summary of the motivations of the MiTEE CubeSat Program and the progress into this modeling endeavor.