Space launch on December 2025 carried four DiskSat units from Aerospace Corp. to a 550‑kilometer orbit aboard a Rocket Lab Electron rocket launched from NASA’s Wallops Flight Facility in Virginia. The 17‑kilogram satellites are descending at roughly two kilometers per month due to atmospheric drag while engineers commission Enpulsion Nano Field Emission Electric Propulsion systems intended to lower the satellites to orbits below 300 kilometers.

Darren Rowen, mission chief engineer, said the development represents a significant advancement in containerized satellites since the introduction of cubesats in the early 2000s. Principal investigator Catherine Venturini added that propulsive lowering and sustainment at lower altitude is forthcoming.

The DiskSat bus measures 1 meter in diameter and 2.5 centimeters in depth, featuring carbon fiber composite facesheets bonded to an aluminum‑honeycomb core. Because of this form factor, engineers modified power management, communications, attitude control and thermal subsystems.

The early‑orbit phase involved numerous first‑time operations, including the bus, dispenser, S‑band radio and ground network, creating a steep learning curve, according to a paper presented at the 2026 Small Satellite Conference. Thermal control proved challenging because thrusters, payloads, star trackers and other components were mounted on the exterior.

The custom dispenser, essential for deployment, carried high risk; its failure would end the mission, Rowen said. Once in orbit, engineers identified stray light affecting star trackers and corrected the issue by revising the concept of operations. Battery heater imbalances caused two batteries on DiskSat C and one on DiskSat A to become permanently disabled after a software fix, the paper reported. Rowen described the outcome as a painful lesson but noted that the mission remains on track to achieve its objectives.

During the demonstration, Aerospace Corp. transferred DiskSat technology through commercial licensing agreements with Neumann Space, Orbotic Systems and Satlyt, with additional companies showing interest. Venturini said the demonstration’s value lies not only in proving the concept but also in fostering an industrial base for future DiskSat production.