Geostationary Public Multi-Mission
Communications Satellite (Under Development)

  • Specifications :
    Mission: lifespan 15 years, Class: 3.5-ton geostationary satellite
  • Orbit : Geostationary orbit
  • Missions : Disaster and emergency communications, flood and hydrological disaster monitoring, precision navigation augmentation
  • Payloads: Flexible broadband communications payload, data collection payload, satellite navigation augmentation payload
01

Supporting Emergency Communications, Shifting Communications Paradigms, and Precision Navigation Augmentation

The Geostationary Public Multi-Mission Communications Satellite is being developed as a successor to the Chollian-2A/2B satellites and will inherit the communications mission of the Chollian-1 satellite, which was launched in June 2010. Scheduled for launch in the second half of 2027, the satellite will operate at 128.2°E above the equator, delivering public satellite communications for disaster response and emergency services. It will also perform critical tasks, such as supporting communications in areas where terrestrial networks have collapsed, providing maritime safety and sovereignty support for the Korea Coast Guard, assisting in safe aircraft operations, and securing flood monitoring information.
Based on the technology acquired through the development of the Chollian-1 and -2 satellites, this geostationary satellite is expected to lay the foundation for Korea’s independent development of communications satellites and contribute to addressing public-sector needs while enhancing the nation’s technological stature.

02

Configuration of the Geostationary Public Multi-Mission Communications Satellite

Lead Ministry
우주항공청
Business Period
2021 ~ 2027
Participating Ministries
과학기술정보통신부 환경부 국토교통부 해양경찰청
Configuration of the Geostationary Public Multi-Mission Communications Satellite
Item Key Specifications of the Geostationary Public Multi-Mission Communications Satellite
Mission Lifespan 15 years
Orbit Geostationary orbit at 128.2°E
Payloads Flexible Broadband Communications Payload (Ka-band),
Satellite-Based Augmentation System Payload (L/C-band),
Data Collection Payload (L-band))
03

Mission Objectives of the Geostationary Public Multi-Mission Communications Satellite

  • Establish a satellite communications system to enable rapid response during disasters and emergencies
  • Secure stable hydrological disaster monitoring data for mountainous regions, rivers, and dams and support maritime satellite communications for the Korea Coast Guard
  • Provide a reliable domestic satellite navigation augmentation service, achieving independence from foreign systems
  • Develop ground-to-satellite network integration technologies and serve as a testbed for advanced satellite communications technologies
맨위로