- 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.
A measurement of a rocket's relative performance. Expressed in seconds, the number of which a rocket can produce one pound of thrust from one pound of fuel. The higher the specific impulse, the less fuel required to produce a given amount of thrust.
Industry:Aerospace
Unit of angular measurement equal to the angle at the center of a circle subtended by an arc equal in length to the radius. Equals about 57.296 degrees.
Industry:Aerospace
The angular distance between peaks or troughs of two waveforms of similar frequency.
Industry:Aerospace
A quantity of data used as the basis for multiplexing, for example in accordance with CCSDS.
Industry:Aerospace
Configuration in which one celestial body is opposite another in the sky. A planet is in opposition when it is 180 degrees away from the sun as viewed from another planet (such as Earth). For example, Saturn is at opposition when it is directly overhead at midnight on Earth.
Industry:Aerospace
The line marking the apparent junction of Earth and sky. For the technical definition, please follow this link to the U.S. Naval Observatory's Astronomical Applications.
Industry:Aerospace
The space within the boundary of the heliopause, containing the sun and solar system.
Industry:Aerospace
