TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

The active debris removal(ADR) concept has continuously evolved for the debris removal from the LEO [low Earth orbit] region. One of the evolving ADR methods is space robotics which has continuously matured over a couple of decades. In space robotics, the satellite system consists of a robotic arm mounted over it which can be called a debris chaser satellite. The main function of the debris chaser satellite is to chase, capture and de-orbit the space junk to a very low earth orbit.  2, record 1, English, - chaser%20satellite

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 CONT

Au cours d'une mission de retrait actif d'un débris spatial en orbite autour de la Terre, un engin spatial chasseur ou un satellite chasseur doit aller à la rencontre du débris de grande taille, par exemple un satellite cible, avec l'objectif de modifier son orbite soit pour une réentrée dans l'atmosphère ou un placement dans une orbite cimetière de ce dernier. Différentes techniques de capture de débris de grandes tailles ont été proposées et peuvent être classées en trois classes : une première classe dans laquelle un lien rigide entre le débris et l'engin chasseur est établi par exemple au travers de bras robotiques ou de mécanismes de saisie ou de prise; une deuxième classe dans laquelle un lien souple entre le débris et l'engin chasseur est mis en œuvre par exemple en utilisant des filets ou des harpons; une troisième classe, formée par des systèmes de capture sans contact de l'engin chasseur avec le débris et utilisant par exemple une projection de mousse ou un guidage par faisceau d'ions.  2, record 1, French, - satellite%20chasseur

Record 1,  Textual support,  Spanish

Record number: 1, Textual support number: 1 CONT

Una familia de satélites "limpiadores" suizos se encargará de eliminar piezas de basura espacial que orbitan alrededor de la Tierra y que suponen una amenaza para los satélites y las naves espaciales, con los que pueden colisionar. [...] A una velocidad de 28.000 kilómetros por hora, el [satélite] se reunirá con el blanco de su misión y lo abrazará con una especie de gancho, inspirado en los mecanismos de agarre de animales y plantas. Una vez unidos el satélite limpiador y la pieza de basura, el primero utilizará su motor para lanzarse en compañía del otro hacia la atmósfera terrestre donde, al entrar en contacto con los gases que la forman, se desintegrarán los dos artefactos a temperaturas superiores a los 1000 grados [Celsius].  1, record 1, Spanish, - sat%C3%A9lite%20limpiador

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 CONT

[Global navigation satellite system(GNSS) ] positioning is affected by various measurement errors, such as ionospheric delay, tropospheric delay, and multipath effect. In addition, the GNSS signal is weak[;] it comes from 20, 000 to 30, 000 km away and is vulnerable to unintentional radio frequency interference or malicious interference(jamming and spoofing)... Therefore, it is of great significance to enhance the reliability and positioning accuracy of GNSS by other means... Many studies consider using signals of opportunity(SOP) for positioning when GNSS is unavailable or unreliable. These SOP include digital television[, ] Bluetooth[, low earth orbit(LEO), ] Wi-Fi[, ] vision[, ] 5 G [(fifth generation), ] and so on.  3, record 2, English, - opportunity%20signal

Record number: 2, Textual support number: 1 OBS

opportunity signal; signal of opportunity: designations usually used in the plural.  5, record 2, English, - opportunity%20signal

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 OBS

signal d'opportunité : désignation habituellement utilisée au pluriel.  2, record 2, French, - signal%20d%27opportunit%C3%A9

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 DEF

An anti-satellite interceptor launched from the ground into a temporary parking orbit from which it manoeuvres to attack a low earth orbit(LEO) satellite.  2, record 3, English, - low%2Daltitude%20short%2Dduration%20orbital%20interceptor

Record number: 3, Textual support number: 1 OBS

ASAT: antisatellite or anti-satellite.  4, record 3, English, - low%2Daltitude%20short%2Dduration%20orbital%20interceptor

Record 3,  Textual support,  French

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 DEF

[An interceptor] launched on a booster from the ground or from an aircraft into a suborbital trajectory that is designed to intersect that of a low earth orbit(LEO) satellite.  3, record 4, English, - low%2Daltitude%20direct%2Dascent%20ASAT%20interceptor

Record number: 4, Textual support number: 1 OBS

ASAT: antisatellite or anti-satellite.  4, record 4, English, - low%2Daltitude%20direct%2Dascent%20ASAT%20interceptor

Record 4,  Textual support,  French

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 CONT

Low Earth Orbit (LEO) satellites are located approximately 1000 km from the surface of the Earth and this allows the use of low power handheld mobile telephones. LEO satellites must move quickly to avoid falling into the Earth, therefore; LEO satellites circle the Earth in approximately 100 minutes at 24,000 km per hour.  7, record 5, English, - low%20Earth%20orbit%20satellite

Record number: 5, Textual support number: 1 OBS

They are located around 900 km over the Earth. Full coverage of the Earth’s surface would require a minimum of 48 LEO satellites.  8, record 5, English, - low%20Earth%20orbit%20satellite

Record number: 5, Textual support number: 2 OBS

low-orbiting satellite: reproduced from "Titles, Names and Acronyms related to the activities of the International Oceanographic Commission of Unesco" with the authorization of Unesco.  9, record 5, English, - low%20Earth%20orbit%20satellite

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 DEF

Satellite situé à une altitude d'environ 1000 km au-dessus de la Terre.  6, record 5, French, - satellite%20en%20orbite%20basse

Record number: 5, Textual support number: 1 CONT

Satellites en orbite basse. Ces satellites en orbite basse ont une période de révolution qui varie entre 90 minutes et deux heures, et ils ne sont visibles de la Terre que durant une période qui ne peut excéder vingt minutes. La zone de couverture terrestre [...] de ces satellites est un cercle dont le rayon est de l'ordre d'une ou plusieurs centaines de kilomètres. [...] pour assurer la continuité du service et une couverture mondiale, il est nécessaire de déployer un grand nombre de satellites (constellation de satellites) autour de la Terre [...]  4, record 5, French, - satellite%20en%20orbite%20basse

Record number: 5, Textual support number: 1 OBS

satellite sur orbite à basse altitude : reproduit de «Titles, Names and Acronyms related to the activities of the International Oceanographic commission of Unesco», avec l'autorisation de l'Unesco.  7, record 5, French, - satellite%20en%20orbite%20basse

Record number: 5, Textual support number: 2 OBS

LEO : orbite basse terrestre.  6, record 5, French, - satellite%20en%20orbite%20basse

Record 5,  Textual support,  Spanish

Record number: 5, Textual support number: 1 DEF

Satélite situado a una distancia de alrededor de 900 km sobre la superficie terrestre.  1, record 5, Spanish, - sat%C3%A9lite%20de%20%C3%B3rbita%20terrestre%20baja

Record number: 5, Textual support number: 1 OBS

Se pretende que estos satélites combinen algunas funciones de las comunicaciones celulares, como por ejemplo, radiobúsqueda, telefonía móvil, etc. Para dar cobertura a toda la superficie de la Tierra se requeriría un mínimo de 48 satélites LEO.  1, record 5, Spanish, - sat%C3%A9lite%20de%20%C3%B3rbita%20terrestre%20baja

Record number: 5, Textual support number: 2 OBS

satélite en órbita baja: Reproducido del "Titles, Names and Acronyms related to the activities of the International Oceanographic Commission of Unesco", con la autorización de Unesco.  3, record 5, Spanish, - sat%C3%A9lite%20de%20%C3%B3rbita%20terrestre%20baja

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 CONT

In 1993 the Norwegian Space Center in cooperation with the Swedish Space Corporation proposed the establishment of a Polar Satellite Service to launch small(up to 250 kg) spacecraft into LEO [Low-Earth Orbit] inclinations of 70 degrees to 110 degrees.  3, record 6, English, - polar%20satellite%20service

Record 6,  Textual support,  French

Record 6,  Textual support,  Spanish

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 CONT

Orbit control [consists in] controlling satellites to keep [them] flying on the designated orbit. When a satellite flies in low earth orbit(LEO), it gradually descends due to air drag. It is necessary to push the satellite back to the original orbit by activating station-keeping thrusters. Geostationary satellites do not descend due to air drag, however, they do de-orbit from their designated stationary position because the gravitational field of the Earth is not uniform and because the gravitational pull of the Sun and the Moon alters their orbit. In a similar way, geostationary satellites are pushed back to their original position by activating station-keeping thrusters.  2, record 7, English, - orbit%20control

Record number: 7, Textual support number: 1 OBS

orbit control: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG).  3, record 7, English, - orbit%20control

Record 7,  Textual support,  French

Record number: 7, Textual support number: 1 DEF

Maintien d'un satellite sur son orbite.  2, record 7, French, - contr%C3%B4le%20d%27orbite

Record number: 7, Textual support number: 1 CONT

Contrôle d'orbite autonome pour le maintien à poste de satellites.  3, record 7, French, - contr%C3%B4le%20d%27orbite

Record number: 7, Textual support number: 1 OBS

contrôle d'orbite : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).  2, record 7, French, - contr%C3%B4le%20d%27orbite

Record 7,  Textual support,  Spanish

Record number: 7, Textual support number: 1 DEF

Mantenimiento de un satélite artificial dentro de sus boxes de órbita y actitud por medio de la ejecución de maniobras de corrección.  1, record 7, Spanish, - control%20orbital

Record 8,  Textual support,  English

Record number: 8, Textual support number: 1 OBS

Classification of satellite orbits : 1. Type of orbit : Circular(with centre of the circle at the centre of the earth), Elliptical(with the earth's centre as one of the two foci of the ellipse). 2. Plane of orbit : Equatorial orbit(directly above the earth's equator), Polar orbit(passes over both poles). Inclined orbits(any other orbit). 3. Altitude of the communications satellite : GEO(geostationary orbit), MEO(medium earth orbit), LEO(low earth orbit).  3, record 8, English, - circular%20equatorial%20orbit

Record 8,  Textual support,  French

Record number: 8, Textual support number: 1 CONT

Tous les satellites de télécommunication (transmission de données, d'images et de sons) sont placés sur une orbite circulaire équatoriale. La raison en est simple : ainsi placés, ils peuvent facilement «arroser» différentes zones du globe et relayer des données provenant de deux points très éloignés. C'est cette localisation équatoriale qui explique l'orientation au sud d'une antenne parabolique installée depuis la France et plus globalement l'hémisphère nord.  1, record 8, French, - orbite%20circulaire%20%C3%A9quatoriale

Record 8,  Textual support,  Spanish

Record 9,  Textual support,  English

Record number: 9, Textual support number: 1 CONT

High data rate intersatellite communications will be needed in applications such as short range links between clusters of satellites in one or adjacent orbital slots, medium range links forming a network in LEO(Low Earth Orbit) and MEO(Medium Earth Orbit) constellations, and longer links between GEO(Geostationary Orbit) satellites. This requires optical intersatellite links or satellite to ground communications links with digital data transfer at 10 Gbps at ranges of 10 000 kilometres.  2, record 9, English, - optical%20intersatellite%20link

Record number: 9, Textual support number: 1 OBS

Optical intersatellite links offer higher data rates than microwave alternatives. There is no requirement for spectrum approval and interference threats are minimal with laser communications.  2, record 9, English, - optical%20intersatellite%20link

Record 9,  Textual support,  French

Record number: 9, Textual support number: 1 OBS

Les liaisons optiques intersatellites offrent un débit binaire plus élevé que les liaisons hyperfréquences, aucune approbation de spectre n'est nécessaire et les risques de brouillage sont minimes.  5, record 9, French, - liaison%20optique%20intersatellite

Record 9,  Textual support,  Spanish

Record 10,  Textual support,  English

Record number: 10, Textual support number: 1 CONT

Skynet provides Loral with an entry into the satellite service business, bringing it four orbiting satellites that beam TV programs, phone calls and computer data around the country. Loral also has signed an agreement with Alcatel of France to combine its geostationary system with Alcatel' s proposed SATIVOD LEO internet satellite system.  2, record 10, English, - satellite%20for%20interactive%20video%20on%20demand

Record 10,  Textual support,  French

Record number: 10, Textual support number: 1 CONT

Notre objectif est d'être les premiers sur le marché mondial des services multimédia avec une système économique de satellites et de terminaux «bon marché» au sol. Sativod, a l'opposé de l'ambitieux projet Teledesic de Bill Gates, utilisera des technologies existantes et peu complexes sans s'approprier une importante bande de fréquences. Ce sera un système souple, compatible et évolutif qui s'adaptera aux systèmes terrestres et au progrès des applications du numérique.  2, record 10, French, - SATIVOD

Record 10,  Textual support,  Spanish

Record 11,  Textual support,  French

Record 11,  Textual support,  Spanish