- 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.
One of three DSN tracking sites at Goldstone, California; Madrid, Spain; and Canberra, Australia; spaced about equally around the Earth for continuous tracking of deep-space vehicles.
Industry:Aerospace
The effect on frequency imposed by relative motion between transmitter and receiver. See Chapter 6.
Industry:Aerospace
The point at which an orbit crosses a reference plane (such as a planet's equatorial plane or the ecliptic plane) going south.
Industry:Aerospace
Mass per unit volume. For example, the density of water can be stated as 1 gram/cm3.
Industry:Aerospace
The measure of a celestial body's apparent height above or below the celestial equator.
Industry:Aerospace
Db, an expression of ratio (see db, above). One tenth of a Bel. See NIST website for further definition.
Industry:Aerospace
A configuration in which two celestial bodies have their least apparent separation.
Industry:Aerospace
