Geocorona (GEO) Imager

• GEO Observations

  • Far ultraviolet imaging of the Earth’s Geocorona

• Measurement Requirement

  • FOV: 1° x 360° for Geocorona
  • Spatial Resolution: 90 km
  • Spectral Resolution:Lyman alpha 121.6 nm

• Storm/substorm Observations

  • Image Time: 2 minutes generating 720 images/day

• Derived Quantities

  • Integrated line-of-sight density map of the Earth’s Geocorona
  • Important input for ring current modeling in conjunction with the neutral atom imaging
  • 
    (Image at left from Rairden et al., 1986)

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