JAXA Ends Efforts to Restore Hitomi X-ray Astronomy Satellite

Artist’s rendition of the Astro-H “Hitomi” satellite. Photo: JAXA

[Via Satellite 04-28-2016] The Japan Aerospace Exploration Agency (JAXA) has announced it will cease its efforts to restore the ailing X-ray Astronomy Satellite Astro H (Hitomi). Based on most of its analyses, including simulations on the mechanisms of object separation, the agency reported it is likely that both solar array paddles had broken off at their bases where they are vulnerable to rotation.

Initially JAXA had received some signals believed to be from Astro H after separation, so the agency was hoping to restore communication with the satellite. However, JAXA has concluded that the received signals were not from Astro H due to the differences in frequencies as a consequence of technological study.

JAXA also reported receiving information from overseas organizations that indicated the separation of the two solar array paddles. Thus, the agency has determined it cannot restore Astro H’s functions, and will cease its efforts to do so.

JAXA will now focus on reviewing all phases from design, manufacturing, verification, and operations to identify the causes that may have led to this anomaly, including background factors.