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At the heart of this venture is the APSR Refueler, a 300 kg spacecraft developed by the company Astercale. Designed for agility and efficiency, the APSR Refueler will transport Hydrazine—a powerful propellant—beyond the geostationary belt, which sits approximately 36,000 kilometers from the Earth. This region is of strategic importance for communications and Earth observation, housing essential satellites including one operated by the United States Space Force, which is set to benefit from this refueling mission.