Probably the most difficult duties in distant sensing from house is reaching required instrument calibration accuracy on-orbit. The Moon is taken into account to be a wonderful exoatmospheric calibration supply. Nevertheless, the present accuracy of the Moon as an absolute reference is proscribed to five – 10%, and this stage of accuracy is insufficient to satisfy the difficult goal of Earth Science observations. ARCSTONE is a mission idea that gives an answer to this problem. An orbiting spectrometer flying on a small satellite tv for pc in low Earth orbit will present lunar spectral reflectance with accuracy ample to determine an SI-traceable absolute lunar calibration customary for previous, present, and future Earth climate and local weather sensors.
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Sourcing information and pictures from nasa.gov/information
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