Japan’s ALOS-3 Satellite

Issue: 7 / 2019

Japan is planning to put an experimental infrared sensor on board the ALOS-3 satellite which it plans to launch into space orbit next year. The mounted sensor will enable Japan to acquire its own early warning satellite capability to detect ballistic missiles launched from North Korea and elsewhere. The image sensor that uses tiny semiconductor particles is said to be able to detect infrared rays in two wavelength bands. ALOS-3 is an Earth observation satellite that continuously observes the global land area and orbits at an altitude of 669km.