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Radar astronomy, the Glossary

Index Radar astronomy

Radar astronomy is a technique of observing nearby astronomical objects by reflecting radio waves or microwaves off target objects and analyzing their reflections.[1]

Table of Contents

  1. 50 relations: Arecibo Observatory, Asteroid belt, Astrometry, Astronomical object, Astronomical unit, Cassini–Huygens, Civil Aviation Technology College, Earth, Ephemeris, Flyby (spaceflight), Galilean moons, General relativity, Goldstone Deep Space Communications Complex, Goldstone Solar System Radar, Imaging radar, Impact event, Inverse-square law, Jean-Luc Margot, Jet Propulsion Laboratory, Jupiter, Libration, Magellan (spacecraft), Mars, Mars Express, Mercury (planet), Microwave, Moon, NASA Deep Space Network, Near-Earth object, Parallax, Paul Elek, Pluton (complex), Public relations, Radar, Radar altimeter, Radio astronomy, Radio wave, RT-70, Saturn, Shuttle Radar Topography Mission, Solar System, Tehran, Transceiver, University of California, Los Angeles, Venus, Watt, 4179 Toutatis, 6489 Golevka, 73P/Schwassmann–Wachmann, 99942 Apophis.

Arecibo Observatory

The Arecibo Observatory, also known as the National Astronomy and Ionosphere Center (NAIC) and formerly known as the Arecibo Ionosphere Observatory, is an observatory in Barrio Esperanza, Arecibo, Puerto Rico owned by the US National Science Foundation (NSF).

See Radar astronomy and Arecibo Observatory

Asteroid belt

The asteroid belt is a torus-shaped region in the Solar System, centered on the Sun and roughly spanning the space between the orbits of the planets Jupiter and Mars.

See Radar astronomy and Asteroid belt

Astrometry

Astrometry is a branch of astronomy that involves precise measurements of the positions and movements of stars and other celestial bodies.

See Radar astronomy and Astrometry

Astronomical object

An astronomical object, celestial object, stellar object or heavenly body is a naturally occurring physical entity, association, or structure that exists within the observable universe.

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Astronomical unit

The astronomical unit (symbol: au, or AU) is a unit of length defined to be exactly equal to.

See Radar astronomy and Astronomical unit

Cassini–Huygens

Cassini–Huygens, commonly called Cassini, was a space-research mission by NASA, the European Space Agency (ESA), and the Italian Space Agency (ASI) to send a space probe to study the planet Saturn and its system, including its rings and natural satellites.

See Radar astronomy and Cassini–Huygens

Civil Aviation Technology College

The Civil Aviation Technology College (CATC College)(Higher Education Center of Civil Aviation and Airports of the country) is the oldest training centre providing specialized manpower needed by Iran's civil aviation industry, It has been operating since 1938 (officially 1940) the order of King Reza Pahlavi.

See Radar astronomy and Civil Aviation Technology College

Earth

Earth is the third planet from the Sun and the only astronomical object known to harbor life.

See Radar astronomy and Earth

Ephemeris

In astronomy and celestial navigation, an ephemeris (pl. ephemerides) is a book with tables that gives the trajectory of naturally occurring astronomical objects as well as artificial satellites in the sky, i.e., the position (and possibly velocity) over time.

See Radar astronomy and Ephemeris

Flyby (spaceflight)

A flyby is a spaceflight operation in which a spacecraft passes in proximity to another body, usually a target of its space exploration mission and/or a source of a gravity assist (also called swing-by) to impel it towards another target.

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Galilean moons

The Galilean moons, or Galilean satellites, are the four largest moons of Jupiter: Io, Europa, Ganymede, and Callisto.

See Radar astronomy and Galilean moons

General relativity

General relativity, also known as the general theory of relativity and Einstein's theory of gravity, is the geometric theory of gravitation published by Albert Einstein in 1915 and is the current description of gravitation in modern physics.

See Radar astronomy and General relativity

Goldstone Deep Space Communications Complex

The Goldstone Deep Space Communications Complex (GDSCC), commonly called the Goldstone Observatory, is a satellite ground station located in Fort Irwin in the U.S. state of California.

See Radar astronomy and Goldstone Deep Space Communications Complex

Goldstone Solar System Radar

The Goldstone Solar System Radar (GSSR) is a large radar system used for investigating objects in the Solar System.

See Radar astronomy and Goldstone Solar System Radar

Imaging radar

Imaging radar is an application of radar which is used to create two-dimensional images, typically of landscapes.

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Impact event

An impact event is a collision between astronomical objects causing measurable effects.

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Inverse-square law

In science, an inverse-square law is any scientific law stating that the observed "intensity" of a specified physical quantity is inversely proportional to the square of the distance from the source of that physical quantity.

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Jean-Luc Margot

Jean-Luc Margot (born 1969) is a Belgian-born astronomer and a UCLA professor with expertise in planetary sciences and SETI.

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Jet Propulsion Laboratory

Jet Propulsion Laboratory (JPL) is a Federally Funded Research and Development Center (FFRDC) in La Cañada Flintridge, California, Crescenta Valley, United States.

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Jupiter

Jupiter is the fifth planet from the Sun and the largest in the Solar System.

See Radar astronomy and Jupiter

Libration

In lunar astronomy, libration is the cyclic variation in the apparent position of the Moon perceived by Earth-bound observers and caused by changes between the orbital and rotational planes of the moon.

See Radar astronomy and Libration

Magellan (spacecraft)

The Magellan spacecraft was a robotic space probe launched by NASA on May 4, 1989.

See Radar astronomy and Magellan (spacecraft)

Mars

Mars is the fourth planet from the Sun.

See Radar astronomy and Mars

Mars Express

Mars Express is a space exploration mission being conducted by the European Space Agency (ESA).

See Radar astronomy and Mars Express

Mercury (planet)

Mercury is the first planet from the Sun and the smallest in the Solar System.

See Radar astronomy and Mercury (planet)

Microwave

Microwave is a form of electromagnetic radiation with wavelengths shorter than other radio waves (as originally discovered) but longer than infrared waves.

See Radar astronomy and Microwave

Moon

The Moon is Earth's only natural satellite.

See Radar astronomy and Moon

NASA Deep Space Network

The NASA Deep Space Network (DSN) is a worldwide network of spacecraft communication ground segment facilities, located in the United States (California), Spain (Madrid), and Australia (Canberra), that supports NASA's interplanetary spacecraft missions.

See Radar astronomy and NASA Deep Space Network

Near-Earth object

A near-Earth object (NEO) is any small Solar System body orbiting the Sun whose closest approach to the Sun (perihelion) is less than 1.3 times the Earth–Sun distance (astronomical unit, AU).

See Radar astronomy and Near-Earth object

Parallax

Parallax is a displacement or difference in the apparent position of an object viewed along two different lines of sight and is measured by the angle or half-angle of inclination between those two lines.

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Paul Elek

Paul Elek (1906–1976), Obituaries, AJR Information, Association of Jewish Refugees in Great Britain, Vol.

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Pluton (complex)

Pluton is a system of deep space communications and planetary radar in Crimea.

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Public relations

Public relations (PR) is the practice of managing and disseminating information from an individual or an organization (such as a business, government agency, or a nonprofit organization) to the public in order to influence their perception.

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Radar

Radar is a system that uses radio waves to determine the distance (ranging), direction (azimuth and elevation angles), and radial velocity of objects relative to the site.

See Radar astronomy and Radar

Radar altimeter

A radar altimeter (RA), also called a radio altimeter (RALT), electronic altimeter, reflection altimeter, or low-range radio altimeter (LRRA), measures altitude above the terrain presently beneath an aircraft or spacecraft by timing how long it takes a beam of radio waves to travel to ground, reflect, and return to the craft.

See Radar astronomy and Radar altimeter

Radio astronomy

Radio astronomy is a subfield of astronomy that studies celestial objects at radio frequencies. Radar astronomy and radio astronomy are Observational astronomy.

See Radar astronomy and Radio astronomy

Radio wave

Radio waves are a type of electromagnetic radiation with the lowest frequencies and the longest wavelengths in the electromagnetic spectrum, typically with frequencies below 300 gigahertz (GHz) and wavelengths greater than, about the diameter of a grain of rice.

See Radar astronomy and Radio wave

RT-70

There are three radio telescopes designated RT-70, all in countries that were once part of the former Soviet Union, all with similar specifications: 70m dishes and an operating range of 5–300 GHz.

See Radar astronomy and RT-70

Saturn

Saturn is the sixth planet from the Sun and the second-largest in the Solar System, after Jupiter.

See Radar astronomy and Saturn

Shuttle Radar Topography Mission

The Shuttle Radar Topography Mission (SRTM) is an international research effort that obtained digital elevation models on a near-global scale from 56°S to 60°N, to generate the most complete high-resolution digital topographic database of Earth prior to the release of the ASTER GDEM in 2009.

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Solar System

The Solar SystemCapitalization of the name varies.

See Radar astronomy and Solar System

Tehran

Tehran (تهران) or Teheran is the capital and largest city of Iran as well as the largest in Tehran Province.

See Radar astronomy and Tehran

Transceiver

In radio communication, a transceiver is an electronic device which is a combination of a radio ''trans''mitter and a re''ceiver'', hence the name.

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University of California, Los Angeles

The University of California, Los Angeles (UCLA) is a public land-grant research university in Los Angeles, California, United States.

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Venus

Venus is the second planet from the Sun.

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Watt

The watt (symbol: W) is the unit of power or radiant flux in the International System of Units (SI), equal to 1 joule per second or 1 kg⋅m2⋅s−3.

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4179 Toutatis

4179 Toutatis (provisional designation) is an elongated, stony asteroid and slow rotator, classified as a near-Earth object and potentially hazardous asteroid of the Apollo asteroid group, approximately 2.5 kilometers in diameter.

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6489 Golevka

6489 Golevka is an Apollo, Mars-crosser, and Alinda asteroid discovered in 1991 by Eleanor F. Helin.

See Radar astronomy and 6489 Golevka

73P/Schwassmann–Wachmann

73P/Schwassmann–Wachmann, also known as Schwassmann–Wachmann 3 or SW3 for short, is a periodic comet that has a 5.4 year orbital period and that has been actively disintegrating since 1995.

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99942 Apophis

99942 Apophis (provisional designation) is a near-Earth asteroid and a potentially hazardous object with a diameter of that caused a brief period of concern in December 2004 when initial observations indicated a probability up to 2.7% that it would hit Earth on April 13, 2029.

See Radar astronomy and 99942 Apophis

References

[1] https://en.wikipedia.org/wiki/Radar_astronomy

Also known as Planetary radar, Radar telescope.