- Industria: 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.
The angular distance of a celestial object measured in hours, minutes, and seconds along the celestial equator eastward from the vernal equinox.
Industry:Aerospace
As in ascending above the horizon, for the technical definition, please follow this link to the U.S. Naval Observatory's Astronomical Applications.
Industry:Aerospace
Orbit in which the spacecraft moves in the opposite direction from the planet's rotatation. See prograde.
Industry:Aerospace
The deflection or bending of electromagnetic waves when they pass from one kind of transparent medium into another.
Industry:Aerospace
The deflection or bouncing of electromagnetic waves when they encounter a surface.
Industry:Aerospace
Circular polarization of an electromagnetic wave is a polarization where the tip of the electric field vector, at a fixed point in space, describes a circle as time progresses. If the wave is frozen in time the electric field vectors describe a helix along the direction of propagation. Circular polarization is a limiting case of the more general condition of elliptical polarization.
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
Quasi-stellar object observed mainly in radio waves. Quasars are extragalactic objects believed to be the very distant centers of active galaxies.
Industry:Aerospace
The unit onboard a spacecraft that provides redundant power conditioning and energy storage, and, upon command, redundant power switching for firing electro-explosive or pyro devices. The PSU has the capability to initiate 34 separate events involving one or more pyro devices..
Industry:Aerospace
