인공위성

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  • The Soviet Union inaugurates the “Space Age” with its launch of Sputnik, the world’s first artificial satellite.[1]
  • An artificial satellite was a man-made form of technology that was put in orbit around a planet.[2]
  • Earth launched its first artificial satellite, Sputnik, in 1957.[2]
  • By the late 20th century, the cryonics fad had resulted in cryonics satellites being put into Earth's orbit.[2]
  • According to Tom Paris, by 1996 Earth had surveillance satellites in orbit.[2]
  • Artificial earth satellites have been placed into orbit since 1957, and I have been observing then for 57 years (as of 2017).[3]
  • Amateur and professional astronomers often encounter satellites by accident (or on purpose) in their nightly activities.[3]
  • While on my 13th aurora viewing expedition there was a favorable flyover of the Iridium 6 satellite.[3]
  • Contact with the satellite was lost by JAXA on March 26.[3]
  • A satellite is an object (e.g., Moon, planet or machine that orbits a planet or star).[4]
  • For example, Earth is a satellite because it orbits the Sun.[4]
  • In astronomy, the word ‘satellite’ usually refers to a machine launched into space to orbit the Earth or another space object.[4]
  • Thousands of artificial satellites orbit Earth.[4]
  • satellite, artificial, object constructed by humans and placed in orbit around the earth or other celestial body (see also space probe).[5]
  • During the first decade of space exploration, all of the satellites were launched from either the United States or USSR.[5]
  • It allows crew members to contact starships in orbit without relying on an artificial satellite to relay the signal.[6]
  • The author's previous theory of the artificial satellite is derived in terms of the disturbed eccentric anomaly.[7]
  • The satellite orbit must be determined with an RMS radial accuracy of 13 cm.[8]
  • In this paper, an algorithm to determine onboard the satellite orbit in real-time using the GPS system and Kalman filtering is developed.[8]
  • The algorithm is developed to determine artificial satellite orbits according the dynamical model (the force model).[8]
  • The integration of the satellite motion equation is carried out using the simple 4th order of the Runge-Kutta (RK4) algorithm.[8]
  • In astronomy, a satellite will be understood as a celestial body orbiting around a planet or another celestial body (a moon).[9]
  • A satellite cannot “fly” per se and is unable to leave the Earth’s surface on its own.[9]
  • These scientists designed Project Vanguard as an experiment to study how the environment of space affects satellites.[10]
  • The first two satellites successfully launched into orbit — Sputnik 1 and Sputnik 2 — were sent on smaller rockets.[10]
  • It appears that for higher elevation angles, an impractically large number of satellites would be required.[11]
  • According to further features, the nodal period of such satellites may be about 28,720 seconds, slightly less than eight hours.[11]
  • The above TGS and TTGS orbits for the satellites provide a large number of advantages over the previously used or proposed systems.[11]
  • A further embodiment uses eight satellites in "straight" elliptical TGS orbits, that is having the perigee angle at -90° as in FIG.[11]
  • The device launched fifty years ago was the first artificial satellite, called Sputnik-1.[12]
  • The engineers and technicians set to work once again, night and day, to produce another satellite, this time inhabited.[12]
  • There was no question of going as far as recovering the passenger of this second satellite.[12]
  • For the following, let us suppose that the satellite has been launched; it has become an astronomical object.[13]
  • This transition will affect the future of analytical, semi-analytical and numerical artificial satellite theories in a dramatic way.[14]
  • One way to provide for this transition need is through the use of some type of satellite ephemeris compression.[14]
  • A satellite is an object that revolves around another object in a path called an orbit.[15]
  • The earth can also be considered a satellite of the sun.[15]
  • Artificial satellites are put into orbit by man.[15]
  • The first artificial satellite, Sputnik 1, was launched by the Soviet Union on October 4, 1957 - the US launched Explorer-1 in January 1958.[15]
  • An artificial satellite is an object that people have made and launched into orbit using rockets.[16]
  • There are currently over a thousand active satellites orbiting the Earth.[16]
  • Altitudes of satellites above the Earth’s surface also vary.[16]
  • This is to match the rotation of the Earth so that the satellite appears to stay above the same point above the Earth’s surface.[16]
  • The United States orbited its first satellite, Explorer 1, three months later (January 31, 1958).[17]
  • Scientific satellites are chiefly used to collect data about Earth’s surface and atmosphere and to make astronomical observations.[17]
  • Navigation satellites enable the crews of oceangoing vessels and airplanes to determine the position of their craft in all kinds of weather.[17]
  • Passive satellites do not have any sensors on board and their role is basically that of an orbiting target.[18]
  • The lower the orbit is, the faster the satellite circles the earth.[18]
  • If its orbit is equatorial, the satellite remains in one position above the equator.[18]
  • Other satellites present more of a problem; consequently, their orbits are less well known.[18]
  • Artificial satellites are used to study the Earth, other planets, to help us communicate, and even to observe the distant Universe.[19]
  • The first artificial satellite was the Soviet Sputnik 1 mission, launched in 1957.[19]
  • Since then, dozens of countries have launched satellites, with more than 3,000 currently operating spacecraft going around the Earth.[19]
  • This is where a satellite takes 24 hours to orbit the Earth; the same amount of time it takes the Earth to rotate once on its axis.[19]
  • World Space Week 2020 will celebrate the impact of satellites on humanity from Oct. 4 to Oct. 10.[20]
  • A satellite is an object in space that orbits or circles around a bigger object.[20]
  • Artificial satellites, however, did not become a reality until the mid-20th century.[20]
  • The first artificial satellite was Sputnik, a Russian beach-ball-size space probe that lifted off on Oct. 4, 1957.[20]
  • In the context of spaceflight, a satellite is an object that has been intentionally placed into orbit.[21]
  • On 4 October 1957 the Soviet Union launched the world's first artificial satellite, Sputnik 1.[21]
  • Since then, about 8,900 satellites from more than 40 countries have been launched.[21]
  • Satellite orbits vary greatly, depending on the purpose of the satellite, and are classified in a number of ways.[21]

소스

  1. ↑ Sputnik launched
  2. ↑ 2.0 2.1 2.2 2.3 Artificial satellite
  3. ↑ 3.0 3.1 3.2 3.3 Artificial Satellite Observations
  4. ↑ 4.0 4.1 4.2 4.3 Build Your Own Artificial Satellite
  5. ↑ 5.0 5.1 satellite, artificial
  6. ↑ Sentence examples by Cambridge Dictionary
  7. ↑ The theory of artificial satellites in terms of the orbital true longitude
  8. ↑ 8.0 8.1 8.2 8.3 Onboard and Real-Time Artificial Satellite Orbit Determination Using GPS
  9. ↑ 9.0 9.1 1. Introduction
  10. ↑ 10.0 10.1 Vanguard 1: Earth’s oldest artificial satellite that's still in orbit
  11. ↑ 11.0 11.1 11.2 11.3 US5871181A - Artificial satellite communication system - Google Patents
  12. ↑ 12.0 12.1 12.2 Sputnik, the first artificial satellite
  13. ↑ Artificial Satellites as Celestial Bodies, or the Introduction of ‘Experimental Celestial Mechanics’
  14. ↑ 14.0 14.1 The Future of Artificial Satellite Theories
  15. ↑ 15.0 15.1 15.2 15.3 TERRIERS Classroom: Lesson 2.1: What is a Satellite?
  16. ↑ 16.0 16.1 16.2 16.3 Artificial satellites
  17. ↑ 17.0 17.1 17.2 Earth satellite | Definition & Facts
  18. ↑ 18.0 18.1 18.2 18.3 Artificial Satellite - an overview
  19. ↑ 19.0 19.1 19.2 19.3 Artificial Satellites
  20. ↑ 20.0 20.1 20.2 20.3 What is a Satellite?
  21. ↑ 21.0 21.1 21.2 21.3 Satellite

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Spacy 패턴 목록

  • [{'LOWER': 'artificial'}, {'LEMMA': 'satellite'}]
  • [{'LOWER': 'artificial'}, {'LEMMA': 'moon'}]
  • [{'LOWER': 'space'}, {'LEMMA': 'satellite'}]
  • [{'LEMMA': 'satellite'}]
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