Ion engine
For a super low altitude satellite, strong thrusters are not required, although atmospheric resistance increases. A thrust equivalent to the weight of one small coin such as a dime is sufficient. A long-life and high-fuel efficiency thruster is required. An ion engine is the most appropriate type of space engine, when considering these conditions.
From the perspective of exerting the greatest possible thrust, the propellant used in the SLATS ion engine is xenon gas, which is the same propellant that was used in Hayabusa. Furthermore, SLATS uses technology developed for KIKU No. 8, which realizes greater thrust than Hayabusa.

Atomic oxygen monitoring system
The atmosphere becomes denser as we come closer to the surface of the Earth, and a substance called "atomic oxygen" increases at super low altitudes. Atomic oxygen is known to damage 1tte golden thermal control films (Multi-Layer Insulation) that are used for satellites.
Normally, oxygen gas consists of two atoms which enter a covalent bond and form a molecule. Atomic oxygen refers to a state in which oxygen gas separates due to space radiation and ultraviolet rays, existing as a single atom. This makes atomic oxygen highly reactive and causes it to damage material used on the surface of satellites.
For SLATS, countermeasures have been taken such as applying a coating which is highly resistant to atomic oxygen to the outer surface of the multi-layer insulation. SLATS is also equipped with an atomic oxygen monitoring system which measures the concentration of atomic oxygen and the deterioration of materials when reacting with atomic oxygen. The acquired data will be used in the design of future super low altitude satellites.