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NASA Spitzer Space Telescope • Jet Propulsion Laboratory
• California Institute of Technology
• Vision for Space Exploration
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Frame Frame About the Spitzer Space Telescope Frame Frame
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Fast Facts
 
Current Status
 
Spitzer History
 
Spitzer Technology
 
— Overview
 
— Cryo-Telescope Assembly
 
—— Telescope
 
—— MIC
 
——— IRAC
 
——— IRS
 
——— MIPS
 
—— Cryostat
 
—— Outer Shell
 
— Spacecraft
 
—— Solar Panels
 
—— Spacecraft Bus
 
— Developments
 
Spitzer Science
 
Lyman Spitzer, Jr.
 
 

Spitzer's Cryogenic Telescope Assembly

CTA Diagram
Diagram of the CTA

Spitzer's Cryogenic Telescope Assembly (CTA) consists of four main parts: a superfluid helium cryostat, a light-weight 85cm Ritchey-Chretien telescope, an Outer Shell Group, and a Multiple Instrument Chamber which houses the Science Instruments. Everything that is cold is part of the CTA. The CTA is mechanically mounted to, but thermally isolated from, the spacecraft by means of low conductivity struts and thermal radiation shields. The solar array and spacecraft shields block the CTA from the sun and spacecraft components at all times, helping to keep the CTA as cold as possible.



The Spitzer Space Telescope is a NASA mission managed by the Jet Propulsion Laboratory. This website is maintained by the Spitzer Science Center, located on the campus of the California Institute of Technology and part of NASA's Infrared Processing and Analysis Center. Privacy Policy

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