MAXI (ISS experiment)


The Monitor of All-sky X-ray Image (MAXI) use several highly sensitive X-ray detectors, including the Gas Slit Camera (GSC) and the Solid-state Slit Camera (SSC), located at the Equipment Exchange Unit (EER) site 1 on the Japanese Experiment Module - Exposed Facility (JEF), aboard the International Space Station.[1]


MAXI was developed by Japan Aerospace Exploration Agency (JAXA), Tsukuba, Japan, and is designed to continuously monitor X-ray sources and variability as the International Space Station (ISS) orbits Earth. It was launched in 2009.

MAXI conducts a full sky survey every 96 minutes searching for variations in X-ray sources.

MAXI helped discover the rapidly rotating black-hole/star system MAXI J1659-152.[2]


MAXI has been in operation for several years and has made several x-ray photos of nebulae and space objects while being stationed on the ISS (International Space Station).


iSEEP Wide-Field MAXI (iWF-MAXI) is a follow-on instrument to the current MAXI. Compared with MAXI, which can only monitor 2% of the celestial sphere instantaneously, iWF-MAXI is always capable of monitoring 10%, and can monitor up to 80% in 92 minutes. iWF-MAXI will utilize the i-SEEP (IVA-replaceable Small Exposed Experiment Platform) bus, an exposure adapter for middle-sized payloads in JEM-EF. Chosen as an ISAS Mission of Opportunity in 2015,[3] iWF-MAXI is currently targeted to begin observation at the ISS by 2019.[4]

See also


  1. ^ Staff (18 April 2018). "international Space Station - Monitor of All-sky X-ray Image (MAXI) - 04.25.18 - ISS Science for Everyone - Science Objectives for Everyone". NASA. Retrieved 3 July 2018.
  2. ^ E. Kuulkers, et al. - MAXI J1659-152: The shortest orbital period black-hole transient in outburst (2012)
  3. ^ "第 48 回宇宙理学委員会 議事録" (PDF) (in Japanese). Steering Committee for Space Science. Retrieved 13 November 2015.
  4. ^ "iWF-MAXI soft X-ray transient monitor on the ISS" (PDF). JAXA. Retrieved 30 October 2015.

External links