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CLARREO Pathfinder

CLARREO Pathfinder is designed to measure reflected light from the Earth and the Moon, and can be used to inter-calibrate other Earth observing sensors. CLARREO Pathfinder shows promise to provide a calibration anchor point that would improve government and commercial fleets.

Viewing Posts from July 2026

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  • NASA Calibration Instrument Records First Measurements in Space

    NASA’s Calibration Absolute Radiance and Refractivity Observatory Pathfinder, or CLARREO Pathfinder mission, reached a significant milestone this summer by achieving first light. First light showcases a mission’s ability to successfully power on and capture data, in this case detailed spectral data, validating years of preparation and pre-launch testing. This moment marks the first time the […]