- Industry: 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.
Modulation scheme in which a phase deviation is held for a period of time in order to represent a data symbol. See Chapter 10.
Industry:Aerospace
A small nodding motion in a rotating body. Earth's nutation has a period of 18.6 years and an amplitude of 9.2 arc seconds.
Industry:Aerospace
Communications mode wherein a spacecraft generates its downlink frequency independent of any uplink frequency.
Industry:Aerospace
For technical definition, please follow this link to the U.S. Naval Observatory Astronomical Applications website.
Industry:Aerospace
