NRL's Spatial Heterodyne Imager for Mesospheric Radicals (SHIMMER) was launched into low earth orbit on Thursday, March 8, 2007. SHIMMER is a compact, rugged, high-resolution ultraviolet spectrometer that images the Earth's atmosphere.
First of a kind
It is the first satellite-based instrument to use the spatial heterodyne spectroscopy (SHS) technique, which significantly reduces the instrument's size and weight while retaining the spectral resolution and exceeding the sensitivity of comparable conventional instrumentation.
Main Goals
The two main goals of the SHIMMER mission are to demonstrate SHS for long-duration (greater than one year) spaceflight, and to measure altitude profiles of the hydroxyl radical (OH) between 40 and 100 km altitude.
JENOPTIK supplied
JENOPTIK Optical Systems provided:
- Optical tolerancing
- Mechanical design
- Fabrication of the Anamorphic telescope and Optical relay assembly
The operational band is 2.3 nm FWHM centered at 308.9 nm.
The instrument measures OH ultraviolet resonance fluorescence in middle atmosphere from low earth orbit.
Additional information is available on the Naval Research Lab website.
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