Status and expected perfomance of the MAXI mission for the JEM/ISS

J. Kataoka*, N. Kawai

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review


MAXI (Monitor of All-sky X-ray Image) is the first payload to be attached on JEM-EF (Kibo exposed facility) of ISS. It provides an all sky X-ray image every ISS orbit. Only with a few weeks scan, MAXI is expected to make a milli-Crab X-ray all sky map excluding bright region around the sun. Thus, MAXI does not only inform X-ray novae and transients rapidly to world astronomers if once they occur, but also observes long-term variability of Galact ic and extra-Galactic X-ray sources. MAXI also provides an X-ray source catalogue at that time with diffuse cosmic X-ray background. MAXI consists of two kinds of detectors, position sensitive gas-proportional counters for 2-30 keV X-rays and CCD cameras for 0.5-10 keV X-rays. All instruments of MAXI are now in final phase of pre-launching tests of their flight modules. We are also carrying out performance tests for X-ray detectors and collimators. Data processing and analysis software including alert system on ground are being developed by mission team. In this paper we report an overview of final instruments of MAXI and capability of MAXI.

Original languageEnglish
Pages (from-to)830-833
Number of pages4
JournalAIP Conference Proceedings
Publication statusPublished - 2009 Apr 13
Externally publishedYes
Event4th International Meeting on High Energy Gamma-Ray Astronomy - Heidelberg, Germany
Duration: 2008 Jul 72008 Jul 11


  • All sky monitor
  • International space station
  • X-ray

ASJC Scopus subject areas

  • Physics and Astronomy(all)


Dive into the research topics of 'Status and expected perfomance of the MAXI mission for the JEM/ISS'. Together they form a unique fingerprint.

Cite this