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The three regions include the cryogenic instrument module (1), the electronics compartment (2), and finally the Command and Data Handling subsystem and MIRI crycooler (3), which is inside the spacecraft bus physically. [1] MIRI needs to be colder than the other instruments so it has an additional cooler. [1] MIRI is the mid-infrared instrument. [1]
FGS/NIRISS ETU, 2016 FGS Test unit undergoes cryogenic testing, 2012 Infographic of JWST instruments and their observation ranges of light by wavelength. Fine Guidance Sensor and Near Infrared Imager and Slitless Spectrograph (FGS-NIRISS) is an instrument on the James Webb Space Telescope (JWST) that combines a Fine Guidance Sensor and a science instrument, a near-infrared imager and a ...
To allow mid-infrared observations within the JWST, the MIRI instrument has an additional cooling system. It works roughly similar to how most refrigerators or an air-conditioner works: a fluid is brought down to a cold temperature in the warm section, and sent back to the cold section where it absorbs heat, then it goes back to the condenser.
Michael Petach (December 30, 1959 – June 25, 2024) was an American engineer who made contributions in the fields of cryogenics and thermoacoustics in developing systems for space applications. He worked as an engineer for Northrop Grumman. His notable work revolved around developing cryocoolers and the traveling-wave thermoacoustic electric ...
The average 2025 year-end price target for the S&P 500 this year is 6,539, implying potential gains of around 11% from current levels after a 23% gain last year.
NEW YORK (AP) — U.S. stock indexes slipped on Thursday as Wall Street’s weak end to last year carried into 2025. The S&P 500 fell 0.2% to extend the four-day losing streak that dimmed the ...