South Korea Develops First Mass-Produced Ultrasmall Cluster Satellites for Nuriho Rocket Launch

South Korea has completed the development of its first mass-produced "ultrasmall cluster satellites," marking a significant advancement in the nation's space capabilities. These satellites, weighing under 100 kilograms each, are equipped with cameras capable of capturing 1-meter monochrome and 4-meter color resolution imagery. The successful development was announced by the Korea Aerospace Administration (KASA).

The first five mass-produced units, designated satellites 2 through 6, have completed their pre-transport review. These satellites are slated for launch aboard the fifth flight of South Korea's homegrown Nuriho rocket later this year. This initiative is part of a broader "ultrasmall satellite cluster system" project, which began in 2020. A prototype, satellite 1, was successfully launched and placed into orbit in April 2024, followed by a verification satellite in January 2025 that helped refine cluster operation technology and thruster performance.

Upon the planned launch of five additional satellites (7-11) between July and November 2027, South Korea will establish a constellation of 10 satellites. This network aims to provide more than three daily observations of the Korean Peninsula and enable re-imaging of the same location within 24 hours. The applications for this enhanced observational capacity include monitoring security situations on the peninsula, enabling rapid responses to natural disasters and calamities, and acquiring vital Earth observation data.