Extended Leo Missions on Kompsat Series

Abstract

Currently, 3 Korean LEO satellites with various payloads finished their mission life successfully, and all of them have had their life extended for at least 2 years. These 3 satellites are flying with Saft Lithium-Ion batteries, made of Saft high capacity cells, and equipped with ISIS electronics. Life extension was based on spacecraft health status, including battery performances check. The article aims at sharing in-orbit data showing batteries key data such as Depth of Discharge, and performances margins vs designed lives.