The Space Oblique Mercator (SOM) projection is a modified cylindrical projection with the map surface defined by a satellite orbit. The SOM is an extremely complicated projection. We urge you to refer to "Map Projections a Working Manual" by Snyder for a detailed explanation.
The SOM projection was designed especially for continuous mapping of satellite imagery.
The ellipsoidal form with a non-circular satellite orbit is implemented within the Geographic Calculator.
The "Space Oblique Mercator" projection has the following parameters:
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False Northing
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False Easting
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Longitude of the Central Meridian
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Semi-major Axis of the Satellite Orbit
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Eccentricity of the Satellite Orbit
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Longitude of the Ascending Node
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Length of Time of the Earth's Rotation
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Time of Revolution of the Satellite
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Inclination of the Satellite Orbit
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Longitude of Perigee relative to the Ascending Node
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