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Updated27/04/2024 09:15 
 




Epic (Earth Polychromatic Imaging Camera)


Last 2 Days 2024-04-24, 2024-04-22

Data and Images Courtesy of NASA Epic

What is EPIC ?

EPIC (Earth Polychromatic Imaging Camera) is a 10-channel spectroradiometer (317 - 780 nm) onboard NOA's DSCOVR (Deep Space Climate Observatory) spacecraft. EPIC provides 10 narrow band spectral images of the entire sunlit face of Earth using a 2048x2048 four megapixel CCD (Charge Coupled Device) detector coupled to a 30-cm aperture Cassegrain telescope. Allowing EPIC to provide full disc imagery of the Earth and captures unique perspectives of certain astronomical events such as lunar transits

The DSCOVR spacecraft is located at the Earth-Sun Lagrange-1 (L-1) point giving EPIC a unique angular perspective that will be used in science applications to measure ozone, aerosols, cloud reflectivity, cloud height, vegetation properties, and UV radiation estimates at Earth's surface.

L1: Lagrangian Point 1 (Lagrange Point 1 or L1) is a neutral gravity point between the sun and Earth, about one million miles from Earth, where DSCOVR is located. At this point, about a hundredth of the distance to the Sun, DSCOVR can maintain its position between the sun and Earth. L1 is a good position from which to monitor the sun, because the constant stream of particles from the sun (the solar wind) reaches L1 about an hour before reaching Earth.