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Definition

Hall Effect Thruster

HET

An electric propulsion device that uses crossed electric and magnetic fields to ionize and accelerate a noble gas (typically xenon or krypton). Common on commercial GEO satellites and constellations.

Related terms

Highly Elliptical OrbitHEO

An orbit with high eccentricity, providing long dwell times over specific regions at apogee. Molniya and Tundra orbits a...

Hohmann Transfer

A two-burn elliptical transfer between two coplanar circular orbits. The most propellant-efficient way to move between t...

Bipropellant

A propulsion system using separate fuel and oxidizer combined in a combustion chamber. Higher Isp than monopropellants b...

Electric PropulsionEP

Propulsion technologies that accelerate propellant using electric or electromagnetic fields. Includes ion thrusters, Hal...

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