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Moon Mineralogy Mapper (M3)
M3 with high-resolution compositional maps will improve the understanding of the early evolution of a differentiated planetary body and provide a high-resolution assessment of lunar resources.

Scientific Objectives:
The primary Science goal of M3 is to characterize and map lunar surface mineralogy in the context of lunar geologic evolution. This translates into several sub-topics relating to understanding the highland crust, basaltic volcanism, impact craters, and potential volatiles.
The primary exploration goal is to assess and map lunar mineral resources at high spatial resolution to support planning for future, targeted missions.
These M3 goals translate directly into the following requirements:
  • Accurate measurement of diagnostic absorption features of rocks and minerals;
  • High spectral resolution for deconvolution into mineral components;
  • High spatial resolution for assessment geologic context and active processes;
  • Payload Configuration Details:
    The M3 scientific instrument is a high throughput pushbroom imaging spectrometer, operating in 0.7 to 3.0 m range. It measures solar reflected energy, using a two-dimensional HgCdTe detector array.
    Sampling : 10 nanometers
    Spatial resolution: 70 m/pixel [from 100 km orbit]
    Field of View: 40 km [from 100 km orbit]
    Mass: 8.2 kg
    The spectral range 0.7 to 2.6 µm captures the absorption bands for the most important lunar minerals. In addition, the spectral range 2.5 to 3.0 µm is critical for detection of possible volatiles near the lunar poles. The presence of small amounts of OH or H2O can be unambiguously identified from fundamental absorptions that occur near 3000 nm.
    M3 measurements are obtained for 640 cross track spatial elements and 261 spectral elements. This translates to 70 m/pixel spatial resolution and 10 nm spectral resolution (continuous) from a nominal 100 km polar orbit for Chandrayaan-1. The M3 FOV is 40 km in order to allow contiguous orbit-to-orbit measurements at the equator that will minimize lighting condition variations.
    Moon Mineralogy Mapper (M3) payload is from Brown University and Jet Propulsion Laboratory, USA through NASA
    For Further Information:
    http://moonmineralogymapper.jpl.nasa.gov
    http://discovery.nasa.gov/M3.html
     
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    Last Update
    11 Nov 2008