page_title: Integrated Science Instrument Module
section_title: Gallery
hierarchical_section_title: Integrated Science Instrument Module / Gallery
caption_attribution_description: A technician is installing the bolts that will hold the MIRI, or Mid-Infrared Instrument, to the composite Integrated Science Instrument Module (ISIM) structure, or the black frame. The MIRI is attached to a balance beam, called the Horizontal Integration Tool (HIT), hanging from a precision overhead crane. That's the same tool that Hubble engineers used to prepare hardware for its servicing missions. Photo Credit: NASA/Chris Gunn; Text Credit: NASA/Laura Betz Engineers worked meticulously to implant the James Webb Space Telescope's Mid-Infrared Instrument into the ISIM, or Integrated Science Instrument Module, in the cleanroom at NASA's Goddard Space Flight Center in Greenbelt, Md. As the successor to NASA's Hubble Space Telescope, the Webb telescope will be the most powerful space telescope ever built. It will observe the most distant objects in the universe, provide images of the first galaxies formed and see unexplored planets around distant stars. For more information, visit: www.jwst.nasa.gov NASA image use policy. NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission. Follow us on Twitter Like us on Facebook Find us on Instagram
context_page_description: Integrated Science Instrument Module is a component of the James Webb Space Telescope, a large international infrared space telescope planned for launch in spring 2021. ISIM is the heart of the JWST, and holds the main science payload which includes four science instruments and the fine guidance sensor. ISIM is the spacecraft chassis and instruments that take the light from the main mirror and convert that into the science data that is then sent back to Earth. The other two major sections of the JWST are the Optical Telescope Element and the Spacecraft Element, which includes the Spacecraft Bus and Sunshield. ISIM has a mass of 1.4 metric tons. The infrared camera instrument integrated with ISIM passed its thermal tests in early 2016. ISIM underwent intense thermal cold testing in late 2015 to early 2016. NIRcam is extremely important to JWST, because it's not only a sensitive infrared camera, but it is also used to adjust the alignment of the main mirror segments. The tests were very positive because NIRcam showed was very stable through vibration and thermal testing.
caption: MIRI installed, 2013
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