orbital decay

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• Orbital decay — is the process of prolonged reduction in the altitude of a satellite s orbit. This can be due to drag produced by an atmosphere due to frequent collisions between the satellite and surrounding air molecules. The drag experienced by the object is… …   Wikipedia

• Decay — Contents 1 Science and technlogy 1.1 Biology 1.2 Physics 1.3 …   Wikipedia

• Orbital station-keeping — In astrodynamics orbital station keeping is a term used to describe the orbital maneuvers made by thruster burns that are needed to keep a spacecraft in a particular assigned orbit. For many Earth satellites the effects of the non Keplerian… …   Wikipedia

• Orbital Express — Orbital Express: ASTRO and NEXTSat Orbital Express was a space mission managed by the United States Defense Advanced Research Projects Agency (DARPA) and a team led by engineers at NASA s Marshall Space Flight Center (MSFC). The Orbital Express… …   Wikipedia

• decay — decayable, adj. decayedness /di kayd nis, kay id /, adj. decayless, adj. /di kay /, v.i. 1. to become decomposed; rot: vegetation that was decaying. 2. to decline in excellence, prosperity, health, etc.; deteriorate. 3. Physics. (of a radioactive …   Universalium

• NASA Orbital Debris Program Office — The NASA Orbital Debris Program Office is located at the Johnson Space Center and is the lead NASA center for orbital debris research. It is recognized world wide for its leadership in addressing orbital debris issues. The NASA Orbital Debris… …   Wikipedia

• Deterioro orbital — Saltar a navegación, búsqueda El deterioro orbital es el proceso, usualmente prolongado, de la reducción de la altura de la órbita de un satélite. Este fenómeno puede deberse a la fricción producida con la atmósfera, debido a las frecuentes… …   Wikipedia Español

• Radioactive decay — For particle decay in a more general context, see Particle decay. For more information on hazards of various kinds of radiation from decay, see Ionizing radiation. Radioactive redirects here. For other uses, see Radioactive (disambiguation).… …   Wikipedia

• Double beta decay — is a radioactive decay process where a nucleus releases two beta rays as a single process. In double beta decay, two neutrons in the nucleus are converted to protons, and two electrons and two electron antineutrinos are emitted. In the process of …   Wikipedia

• Beta decay — Nuclear physics Radioactive decay Nuclear fission Nuclear fusion Classical decays …   Wikipedia

• beta decay — Physics. a radioactive process in which a beta particle is emitted from the nucleus of an atom, raising the atomic number of the atom by one if the particle is negatively charged, lowering it by one if positively charged. [1930 35] * * * Any of… …   Universalium