3 Terms
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Space flight
Of or relating to the act of voyaging outside the Earth's atmosphere and into outer space, and the science involved in achieving it.
Industry: Aerospace
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Space flight
lagrange points
Aerospace; Space flight
Five points with respect to an orbit which a body can stably occupy. Designated L1 through L5. See Chapter 5.
klystron
Aerospace; Space flight
A microwave travelling wave tube power amplifier used in transmitters.
kilogram (kg)
Aerospace; Space flight
The SI base unit of mass, based on the mass of a metal cylinder kept in France. See also g (gram).
keyhole
Aerospace; Space flight
An area in the sky where an antenna cannot track a spacecraft because the required angular rates would be too high. Mechanical limitations may also contribute to keyhole size. Discussed in depth ...
k-band
Aerospace; Space flight
A range of microwave radio frequencies in the neighborhood of 12 to 40 ghz.
