ABSTRACT
Great emphasis has been put on the quality of imagery delivered by the Satellite Pour l’Observation de la Terre (SPOT) satellites to address as many needs as possible. A constant effort has been made during design, development, and on-orbit testing to insure the best quality of imagery in three technical domains: geometry (capacity
to locate the pixels on the Earth), radiometry (capacity to interpret radiometric counts in terms of radiance), and resolution (capacity to identify small objects).
