Space astrophysics in Japan

The overview of Japanese space programs describes long-term strategies and missions dedicated to the study of solar physics, cosmic X-ray astronomy, IR astronomy, or radio astronomy. Collaboration with the U.S. is noted for the shuttle-assisted Infrared Telescope in Space which requires a small unmanned space platform. Five satellite projects under development are mentioned, four of which are dedicated exclusively to astronomical observations, and the basic parameters are given of astronomical satellites already launched.