- Settore: 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.
Certain dynamical features in a planet's atmosphere (not to be confused with gravitational waves, see above).
Industry:Aerospace
Technique whereby a spacecraft takes angular momentum from a planet's solar orbit (or a satellite's orbit) to accelerate the spacecraft, or the reverse. See Chapter 4.
Industry:Aerospace
Einsteinian distortions of the space-time medium predicted by general relativity theory (not yet directly detected as of March 2010). (Not to be confused with gravity waves.)
Industry:Aerospace
The mutual attraction of all masses in the universe. Newton's Law of Universal Gravitation holds that every two bodies attract each other with a force that is directly proportional to the product of their masses, and inversely proportional to the square of the distance between them. This relation is given by the formula at right, where F is the force of attraction between the two objects, given G the Universal Constant of Gravitation, masses m1 and m2, and d distance. Also stated as Fg = gmm/r2 where Fg is the force of gravitational attraction, M the larger of the two masses, m the smaller mass, and r the radius of separation of the centers of the masses. See also weight.
Industry:Aerospace
A direct, circular, low inclination orbit about the Earth having a period of 23 hours 56 minutes 4 seconds.
Industry:Aerospace
Encompasses DSN, GCF, DSMS, and project data processing systems.
Industry:Aerospace
A geosynchronous equatorial circular orbit. Also called Clarke orbit.
Industry:Aerospace
Facilities that provide data and voice communications between JPL and the three dsccs.
Industry:Aerospace
Electromagnetic radiation in the neighborhood of 100 femtometers wavelength.
Industry:Aerospace
One of billions of systems, each composed of numerous stars, nebulae, and dust.
Industry:Aerospace
