Webb Telescope ISIM Instrument Installation Timelapse

June 7, 2016 – NASA has released a time lapse video of two dozen engineers and technicians successfully installing the package of science instruments of the James Webb Space Telescope into the telescope structure.

Inside the world’s largest clean room at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, the team crane-lifted the heavy science instrument package, lowered it into an enclosure on the back of the telescope, and secured it to the telescope. This entire installation process took approximately 17 hours to complete.

These science instruments are known as the Integrated Science Instrument Module, or ISIM, and it’s the collection of cameras, spectrographs and fine guidance systems that help record the light collected by Webb’s giant golden mirror.

ISIM is one of three major elements that comprise the James Webb Space Telescope Observatory flight system. The others are the optical telescope and the spacecraft elements. Webb is an international project led by NASA with its partners, ESA (European Space Agency) and the Canadian Space Agency.

The powerful primary mirror for the James Webb Space Telescope was built by Ball Aerospace & Technologies Corp. in Boulder, Colorado. Ball Aerospace also developed the secondary mirror, tertiary mirror, and fine-steering mirror.