Suzaku

Suzaku (formerly ASTRO-EII) was an X-ray observing satellite operated by NASA and Japan Aerospace Exploration Agency (JAXA) from its 2005 launch until 2015 when communication became unstable and it was switched off, easily exceeding its 2-year primary mission and exceeding its designed lifetime of 8 years. Instruments:

• XRT - X-ray telescope.
• XRS - X-ray spectrometer.
• XIS - X-ray imaging spectrometer.
• HXD - Hard X-ray Detector.

It reentered Earth atmosphere in January 2025.