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ALOS-2 (DAICHI-2)

The Japan Aerospace Exploration Agency Advanced Land Observing Satellite-2 (ALOS-2), nicknamed DAICHI-2, is an active Earth-observation mission launched on 24 May 2014 as the successor to DAICHI. Its PALSAR-2 L-band synthetic-aperture radar observes day and night in all weather for cartography, disaster monitoring, land and infrastructure observation, resource surveys, and global tropical-forest monitoring. JAXA described ALOS-2 as in the latter phase of operation in October 2026, with observations continuing alongside ALOS-4 under a revised schedule. Global 10 m Stripmap and some 10 m crustal-deformation observations have ended, while wetland/rapid-deforestation and polar observations continue.

ALOS-2 (DAICHI-2)
NARITA Masahiro · Creative Commons Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0): reuse and adaptation permitted with attribution, license link, indication of changes, and share-alike compliance. Asset used unchanged. · Source
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Identity

Aliases
DAICHI-2ALOS-2Advanced Land Observing Satellite-2Advanced Land Observing Satellite 2
Name
ALOS-2 (DAICHI-2)
Status
active

Details

Astronauts
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Description
The Japan Aerospace Exploration Agency Advanced Land Observing Satellite-2 (ALOS-2), nicknamed DAICHI-2, is an active Earth-observation mission launched on 24 May 2014 as the successor to DAICHI. Its PALSAR-2 L-band synthetic-aperture radar observes day and night in all weather for cartography, disaster monitoring, land and infrastructure observation, resource surveys, and global tropical-forest monitoring. JAXA described ALOS-2 as in the latter phase of operation in October 2026, with observations continuing alongside ALOS-4 under a revised schedule. Global 10 m Stripmap and some 10 m crustal-deformation observations have ended, while wetland/rapid-deforestation and polar observations continue.
Destination
Sun-synchronous, sub-recurrent orbit at 628 km (97.9° inclination; 14-day repeat cycle) for all-weather, day-and-night L-band radar observation supporting cartography, disaster monitoring, land and infrastructure observation, resource surveys, and tropical-forest monitoring
Programs
Start Date
2014-05-24
Vehicle Families

Links

Official Url
https://global.jaxa.jp/projects/sat/alos2/index.html

Assets & Meta

Creation Time
August 13, 2026 at 20:56:01 UTC
Updated Time
November 9, 2026 at 09:00:59 UTC
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