Astro-H was successfully launched on 17th February 2016. Astro-H (now known as Hitomi) is an X-ray astronomy satelite commissioned by the Japanese Aerospace Exploration Agency (JAXA) that extensively uses SpaceWire and the Remote Memory Access Protocol (RMAP). It was created to study the hot and energentic Universe, and will probe the sky in the X-ray and gamma-ray portions of the electromagnetic spectrum. For more information please see the JAXA Astro-H mission website.
Image © JAXA.