ALOS-2

Systematic Observation Strategy

ALOS-2 observation plan

Notes for ALOS-2 observation plan

ALOS-2 basic observation scenario is not always observed due to the following reasons, so please refer to the weekly observation plan (= observation plan for the week starting from the following Monday, which is made every Thursday) via AUIG4 (*1) for a more realistic observation plan.

(1) The maximum observation duty cycle has been reduced from 50% to 30% after the end of nominal operation phase in October 2019.
(2) Observations with higher priority than the basic observation scenario are sometimes conducted.
(3) Due to implement radio interference countermeasures during observations, ALOS-2 PALSAR-2 observation operations are restricted in certain regions outside Japan. (updated May 2026)


*1 AUIG4 [https://auig4.jaxa.jp/app/en/home] (weekly observation plan, observation results)

ALOS-2 observation results

  • Observation results during the nominal operation period
    ALOS-2 observation results during the nominal operation period (2014/8/4~2019/5/23) are summarized in the KML files for each observation mode.
  • Accumulated observation results

    ALOS-2 accumulated observation results (from observation start date to present:2014/8/4~2025/12/7) of SM1(StripMap 3m)and SM2(StripMap 6m)mode are summarized in the KML files.
  • Annual observation results

    ALOS-2 annual observation results (from observation start date to present:2014/8/4~2025/12/7) of SM3 (StripMap 10m) and W2 (ScanSAR) mode are summarized in the KML files.
  • Obsevation results of Supersites

    Observation results of ALOS-2 Supersites (from observation start date to present : 2014/8/4~2025/12/7) are summarized in the KML files for each observation sites.
    • World priority disaster prevention
    • Asia-RiCE/SAFE Project Supersites
    • JJ-FAST Supersites
    • K&C (Kyoto & Carbon Initiative) Supersites
    • -Research Announcement on the Earth Observations: EO-RA4- PI Supersites (Starts in 2025)
    • Volcano Supersites