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18 relations: Atomic clock, Crystal oscillator, Falcon Heavy, GPS signals, Gravity, Hertz, Hyperfine structure, Ion, Jet Propulsion Laboratory, Ka band, Low Earth orbit, Mercury (element), NASA Deep Space Network, Occultation, Radio navigation, SpaceX, Star tracker, X band.
Atomic clock
An atomic clock is a clock device that uses an electron transition frequency in the microwave, optical, or ultraviolet region of the electromagnetic spectrum of atoms as a frequency standard for its timekeeping element.
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Crystal oscillator
A crystal oscillator is an electronic oscillator circuit that uses the mechanical resonance of a vibrating crystal of piezoelectric material to create an electrical signal with a precise frequency.
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Falcon Heavy
Falcon Heavy is a partially reusable heavy-lift launch vehicle designed and manufactured by SpaceX.
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GPS signals
Global Positioning System (GPS) satellites broadcast microwave signals to enable GPS receivers on or near the Earth's surface to determine location and time and derive velocity.
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Gravity
Gravity, or gravitation, is a natural phenomenon by which all things with mass or energy—including planets, stars, galaxies, and even light—are brought toward (or gravitate toward) one another.
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Hertz
The hertz (symbol: Hz) is the derived unit of frequency in the International System of Units (SI) and is defined as one cycle per second.
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Hyperfine structure
In atomic physics, hyperfine structure refers to small shifts and splittings in the energy levels of atoms, molecules and ions, due to interaction between the state of the nucleus and the state of the electron clouds.
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Ion
An ion is an atom or molecule that has a non-zero net electrical charge (its total number of electrons is not equal to its total number of protons).
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Jet Propulsion Laboratory
The Jet Propulsion Laboratory (JPL) is a federally funded research and development center and NASA field center in Pasadena, California, United States, with large portions of the campus in La Cañada Flintridge, California.
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Ka band
The Ka band (pronounced as either "kay-ay band" or "ka band") is a portion of the microwave part of the electromagnetic spectrum defined as frequencies in the range 26.5–40 gigahertz (GHz), i.e. wavelengths from slightly over one centimeter down to 7.5 millimeters.
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Low Earth orbit
A low Earth orbit (LEO) is an orbit around Earth with an altitude of or less, and with an orbital period of between about 84 and 127 minutes.
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Mercury (element)
Mercury is a chemical element with symbol Hg and atomic number 80.
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NASA Deep Space Network
The NASA Deep Space Network (DSN) is a worldwide network of US spacecraft communication facilities, located in the United States (California), Spain (Madrid), and Australia (Canberra), that supports NASA's interplanetary spacecraft missions.
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Occultation
An occultation is an event that occurs when one object is hidden by another object that passes between it and the observer.
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Radio navigation
Radio navigation or radionavigation is the application of radio frequencies to determine a position of an object on the Earth.
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SpaceX
Space Exploration Technologies Corp., doing business as SpaceX, is a private American aerospace manufacturer and space transportation services company headquartered in Hawthorne, California.
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Star tracker
A star tracker is an optical device that measures the positions of stars using photocells or a camera.
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X band
The X band is the designation for a band of frequencies in the microwave radio region of the electromagnetic spectrum.
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