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observation
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First Spaceborne Observation of an Earth Reflected GPS Signal
Graphicals Methods for Orbit Calculations of Satellites
Policy for Robust Space-based Earth Science, Technology and Applications
Final Report for the Atmospheric CO2 Observations from Space (ACOS) task
High Altitude Aircraft Program of NASA/Ames Research Center (Abstract Only)
Principal Characteristics of a National Satellite for Earth Observation: Project SPOT
Lifecycle of NASA's Earth Science Enterprise Data Resources
Opportunities from Earth Observation and Monitoring on Space Station Freedom
Significant Accomplishments in Sciences, 1970
Earth Resources Technology Satellite: Non-US Standard Catalog No. N-15, Supplement
Earth Resources Technology Satellite: Non-US Standard Catalog No. N-17
Earth Resources Technology Satellite: Non-US Standard Catalog No. N-18
Earth Resources Technology Satellite: Non-US Standard Catalog No. N-16
Earth Resources Technology Satellite: Non-US Standard Catalog No. N-20