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Satellite camera attitude determination and image navigation by means of earth edge and landmark measurement

  • US 6,023,291 A
  • Filed: 09/29/1997
  • Issued: 02/08/2000
  • Est. Priority Date: 10/16/1996
  • Status: Expired due to Term
First Claim
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1. A method for imaging a celestial object with a spacecraft orbiting the celestial object, comprising steps of:

  • operating an imager instrument aboard the spacecraft to generate data representing an image of the celestial object;

    processing the image data to derive a location of at least one predetermined landmark in the image and a location of edges of the celestial object in the image; and

    further processing the detected locations to obtain an attitude of the imager instrument.

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