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National Aeronautics and Space Administration
업종: Aerospace
Number of terms: 16933
Number of blossaries: 2
Company Profile:
The Executive Branch agency of the United States government, responsible for the nation's civilian space program and aeronautics and aerospace research.
Two-way communications mode wherein the spacecraft generates its downlink frequency based upon the frequency of the uplink it receives.
Industry:Aerospace
In telemetry, one particular measurement to which changing values may be assigned. See Chapter 10.
Industry:Aerospace
The outward-tending apparent force of a body revolving around another body.
Industry:Aerospace
The main frequency of a radio signal generated by a transmitter prior to application of any modulation.
Industry:Aerospace
In the U.S., 109. In other countries using SI, 1012.
Industry:Aerospace
Based on the mean Earth-to-sun distance, 149,597,870 km. Refer to "Units of Measure" section for complete information.
Industry:Aerospace
Small bodies composed of rock and metal in orbit about the sun.
Industry:Aerospace
Angular distance.
Industry:Aerospace
Change in velocity. Note that since velocity comprises both direction and magnitude (speed), a change in either direction or speed constitutes acceleration.
Industry:Aerospace
The galaxy which includes the sun and Earth.
Industry:Aerospace