Emit

Instruments

EMIT Imaging Spectrometer Elements

EMIT uses an advanced two mirror telescope and high throughput F/1.8 Dyson imaging spectrometer. The telescope focuses light entering EMIT on the spectrometer slit where it passed through calcium fluoride crystal refractive element to the grating.
Snow &
Water Imaging
Spectrometer (SWIS)

The Snow and Water Imaging Spectrometer (SWIS) imaging spectrometer was developed as part of the NASA Instrument Incubator Program.
EMIT Telescope and Spectrometer

A view of NASA’s Earth Surface Mineral Dust Source Investigation (EMIT) telescope and imaging spectrometer, in a clean room at NASA’s Jet Propulsion Laboratory in southern California.

EMIT Mineral Dust
Source Measurements Close
a Gap in
Our Knowledge

Mineral dust blown into the air is an important part of the Earth system.
Wind blows dust into the atmosphere from desert regions around the world,
and can carry dust across oceans. Dark minerals that absorb sunlight can warm
the Earth, while light-colored minerals can cool the Earth. By accurately mapping
the composition of areas that produce mineral dust, EMIT will advance
our understanding of dust’s effects throughout the Earth system and to human
populations now and in the future.

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