- 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.
Alignment of Earth, sun, and an inferior planet on the same side of the sun.
Industry:Aerospace
The angular distance of the orbital plane from the plane of the planet's equator, stated in degrees.
Industry:Aerospace
Conceptual basis for celestial positions, aligned with respect to extremely distant objects and utilizing the theory of general relativity. Link.
Industry:Aerospace
The realization of the ICRS provided by the adopted positions of extragalactic objects.
Industry:Aerospace
The angular distance of a celestial object measured westward along the celestial equator from the zenith crossing. In effect, HA represents the RA for a particular location and time of day.
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
Interplanetary trajectory using the least amount of propulsive energy. See Chapter 4.
Industry:Aerospace
An antenna onboard of a spacecraft with a focused, narrow radiowave beam width. This narrow beam width allows more precise targeting of the radio signal - also known as a directional antenna.
Industry:Aerospace
A low-noise amplifier used in DSN.
Industry:Aerospace
