# Earth Polychromatic Imaging Camera (EPIC)
*sensor . products*

Ten-channel UV/VIS/NIR spectroradiometer on DSCOVR imaging the entire sunlit Earth disk from L1.

## Specifications
- **product status**: operational
- **deployment context**: orbital
- **manufacturer**: nasa
- **sensor**: {"instrument_family":"passive-optical","measurement_principle":"passive","spectral_range_nm":{"min":317.5,"max":779.5},"spectral_band_count":10,"gsd_m":{"native":8,"resampled":24},"swath_km":12742}
- **entity type**: sensor
- **last verified date**: 2026-06-16
- **verified by**: agency-doc
- **claim status**: agency-sourced
- **provider**: nasa
- **attributes**: {"kind":"sensor","product_status":"operational","deployment_context":"orbital","manufacturer":"nasa","description":"Ten-channel UV/VIS/NIR spectroradiometer on DSCOVR imaging the entire sunlit Earth disk from L1.","sensor":"{\"instrument_family\":\"passive-optical\",\"measurement_principle\":\"passive\",\"spectral_range_nm\":{\"min\":317.5,\"max\":779.5},\"spectral_band_count\":10,\"gsd_m\":{\"native\":8,\"resampled\":24},\"swath_km\":12742}"}
- **relevance**: in-scope

## Editorial
EPIC is the Earth-observation sensor on DSCOVR at Sun-Earth L1, configured as a ten-channel UV/VIS/NIR spectroradiometer and full-disk Earth camera.[^nasa-epic-about] It images the sunlit Earth disk in ten narrow-band spectral channels spanning 317.5-779.5 nm.[^nasa-epic-about] The optical system uses a 2048 x 2048 pixel CCD with a 30-cm aperture Cassegrain telescope.[^nasa-epic-about] Its imaging cadence covers the entire sunlit Earth every 60 to 100 minutes, with about 8 x 8 km native projected pixel size near the equator and about 24 x 24 km downlinked images after onboard averaging.[^nasa-epic-about][^nasa-epic-home] Its Earth-observation applications include ozone and SO2, aerosols, cloud reflectivity and cloud height, vegetation properties, and UV-radiation estimates at the Earth's surface.[^nasa-epic-about]

## Compositional position
- dscovr (missions) --[mission_payloads]--> Earth Polychromatic Imaging Camera (EPIC)

## Sources
- [nasa-epic-about] | NASA GSFC EPIC instrument page | https://epic.gsfc.nasa.gov/about/epic | tier=agency-doc | accessed=2026-06-16
- [nasa-epic-home] | DSCOVR EPIC daily Earth imagery, NASA GSFC | https://epic.gsfc.nasa.gov/ | tier=agency-doc | accessed=2026-06-16

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Source: https://eo-atlas.org/products/sensor/epic-dscovr
Maintainer: SpectraWorks B.V. (CC-BY 4.0)