- Industri: 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 closed plane curve generated in such a way that the sums of its distances from the two fixed points (the foci) is constant.
Industry:Aerospace
The plane in which Earth orbits the sun and in which solar and lunar eclipses occur.
Industry:Aerospace
A multiplier, x1018 from the Greek "hex" (six, the "h" is dropped). The reference to six is because this is the sixth multiplier in the series k, M, G, T, P, E. See the entry for CGPM.
Industry:Aerospace
A unit of force equal to the force required to accelerate a 1-g mass 1 cm per second per second. Compare with Newton.
Industry:Aerospace
Replaces Ephemeris Time, ET, as the independent argument in dynamical theories and ephemerides. Its unit of duration is based on the orbital motions of the Earth, Moon, and planets. DT has two expressions, Terrestrial Time, TT, (or Terrestrial Dynamical Time, TDT), and Barycentric Dynamical Time, TDB. More information on these, and still more timekeeping expressions, may be found at the U.S. Naval Observatory website.
Industry:Aerospace
NASA's worldwide spacecraft tracking facility managed and operated by JPL.
Industry:Aerospace
The system of computers, software, networks, and procedures that processes data from the DSN at JPL.
Industry:Aerospace
