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Distant NASA Camera Yields New Earth Views

08 November 2018

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A NASA camera observing the sunlit side of Earth from a million miles away is providing new data on daily changes to our planet.

The Earth Polychromatic Imaging Camera (EPIC) instrument operates aboard the National Oceanic and Atmospheric Administration's (NOAA) Deep Space Climate Observatory (DSCOVR) satellite, which launched in February 2015 and observes Earth from a distance of about one million miles toward the Sun, allowing for observation of the entire Earth from sunrise to sunset.

A spectroradiometer, EPIC acquires images using 10 filters that detect light covering a wavelength region from the ultraviolet to the near-infrared. NASA has made publicly available daily color images that the instrument has been capturing of the sunlit Earth since June of 2015, and now following suit are a collection of science products: sulfur dioxide from volcanic eruptions, total column ozone, ultraviolet (UV) aerosols, cloud and vegetation properties and atmospheric correction including surface reflectance. Those data are available from June 2015 to about two days before the current date.

Source: NASA

Image credit: NASA Goddard/ Katy Mersmann NASA's Earth Polychromatic Imaging Camera (EPIC) sits aboard NOAA's Deep Space Climate Observatory (DSCOVR) satellite at the Lagrange point 1, one million miles away from Earth.

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