Observing Systems Capability Analysis and Review Tool
Satellite Programme: Advanced Land Observing Satellite
Original name: “Daichi” = "Great Earth".
Series of 3 satellites for land observation.
Japanese programme: JAXA responsible of development and operations.
The platforms are actively stabilised over 3 axes.
The design life time is 5 years.
The satellites exploit sunsynchronous orbits around 10:30 or 12:00, depending on the specific payload.
The replacement policy is based on launching satellites in sequence, roughly 6 months before the expected end-of-life of a satellite.
See detailed description at
Primary data transmission mode: real-time through DRTS (Data Relay and Test Satellite) to the Hatoyama ground station.
Real-time transmission of selected data in X-band to Hatoyama.
The JAXA Earth Observation Center (EOC) coordinates processing, analysis and distribution through a network of several ALOS Data Nodes (ADN), ideally one in each continent.
2006 - 2026
Associated satellites and instruments
Note: red tag => no longer operational , green tag => operational , blue tag => planned
Advanced Land Observing Satellite
(2006 - 2011)
(2014 - 2019)
(2019 - 2026)