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Teledyne Technologies’ Infrared Detectors Aboard The James Webb Space Telescope

January 2, 2022

Teledyne Technologies Incorporated (NYSE:TDY) provided 15, extremely sensitive, H2RG infrared detectors that are used in three of the four science instruments of NASA’s James Webb Space Telescope: the Near-Infrared Camera (NIRCam), the Fine Guidance Sensor (FGS) and the Near-Infrared Spectrograph (NIRSpec).

Ten Teledyne detectors in NIRCam will study the structure and morphology of the universe. Three Teledyne detectors in FGS will be used to point and stabilize the telescope. Two Teledyne detectors in NIRSpec will reveal information about chemical composition, temperature, and velocity of what JWST observes. Teledyne also provided the SIDECAR ASIC focal plane electronics that operate the H2RG detectors.​​

The James Webb Space Telescope in the Cleanroom at the Guiana Space Center, in French Guiana. Webb was carefully lifted from its packing container and then raised to a vertical position. Image is courtesy of NASA/Chris Gunn.

Teledyne provided most of the detectors for NASA’s flagship astronomy missions. JWST’s predecessor, the Hubble Space Telescope, uses Teledyne detectors for imaging in ultraviolet, visible, and infrared light. JWST, however, will concentrate solely on infrared imaging and spectroscopy. This is because JWST will explore the very distant universe, for which ultraviolet and visible emissions have been stretched by the expansion of the universe into infrared wavelengths, a process known as redshift.

Teledyne’s infrared detectors enable JWST to observe the first stars and galaxies, allowing scientists to understand the early evolution of the universe. In 2027, NASA will launch its next flagship astrophysics mission, the Roman Space Telescope, for which Teledyne recently delivered the infrared detectors.​​

For example, Teledyne provided imaging detectors for the Advanced Baseline Imager in the U.S. National Oceanic and Atmospheric Administration’s Geostationary Operational Environmental Satellites (GOES), and NASA’s Orbiting Carbon Observatory-2 (OCO-2). Teledyne sensors are also included in multiple European Union Sentinel satellites, including the anthropogenic CO2 emissions monitoring (CO2M) mission and the Copernicus Hyperspectral Imaging Mission for the Environment (CHIME).​​

In addition to imaging sensors, a Teledyne system provides the electricity that operates the Curiosity and Perseverance Mars Rovers; the electrical power is produced by Teledyne’s Multi-Mission Radioisotope Thermoelectric Generator (MMRTG).

Robert Mehrabian, Chairman, President and Chief Executive Officer of Teledyne, said, "For decades, scientists have used our ground-based and space-based detectors to look outward to our solar system, to the stars and exoplanets of the Milky Way, and to galaxies millions and billions of light years from Earth. More recently, our detectors have been extensively used to look down upon the Earth, monitoring pollution and greenhouse gas emissions, and enabling environmental science and climatology."​​

Filed Under: Detection, Infrared, Instruments, Launch, Satellites

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