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Simple Fabry-Perot-based instrument for surface pressure sensing from space

Mitchel and O-Brien observed in 1989 that a passive satellite measurement using the oxygen A-band could exhibit a precision better than 1% when used to make a surface pressure measurement. We will present a design and performance simulation for a Fabry-Perot interferometer based instrument which should exceed this level of performance. The design is small, inexpensive and rugged.