TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

ORBIT PERFORMANCE [3 records]

Record 1 2017-11-16

English

Subject field(s)
  • Launchers (Astronautics)
CONT

Ariane-5(Expendable Rocket) is part of the European Union's Space Program. At present, the Ariane 5 functions as a Commercial Satellite Launcher and will be used to launch the ATV Cargo/Supply Spacecraft to the International Space station(ISS) in the future. Ariane-5 is the successor to Ariane 4.... The Main Cryogenic Stage is the core of the Ariane 5 launcher. It is 30 meters high and utilizes the Vulcain Rocket Engine. The propellants are liquid hydrogen and liquid oxygen. Two Solid Rocket Boosters are around 30 metres high. The two solid boosters deliver more than 90 percent of the total launcher's thrust at the start of flight. Upper Stage is used to propel the payload to its final orbit. The upper stage uses storable propellants. Ariane-5 is developing new upper stages, along with modifications to the main cryogenic stage and solid boosters, that will increase performance and meet demands of space commercial launch market.

OBS

Ariane 5: term officially approved by the International Space Station official approval Group (ISSOAG).

French

Domaine(s)
  • Lanceurs (Astronautique)
CONT

L'ISS sera [...] desservie par une flotte mixte. Dans cette optique, l'Europe a décidé d'utiliser son propre système de transport spatial : Ariane 5. [...] Ariane 5 n'est pas équipée pour effectuer des manœuvres de rendez-vous et d'accostage avec une station spatiale. Il lui faut pour cela un complément «intelligent» possédant l'avionique et les ressources nécessaires, c'est le rôle de l'ATV (Automated Transfer Vehicle).

OBS

Ariane 5 : terme uniformisé par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).

Spanish

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Record 2 2003-05-30

English

Subject field(s)
  • Launchers (Astronautics)
CONT

The Attitude and Vernier Upper Module. The Vega launch vehicle is equipped with a liquid propulsion module(AVUM), which provides roll control and pitch, yaw, and axial thrust during the final phase of flight. It shall perform the following functions :-roll control;-attitude control during coasting flight and in orbit phase;-correction of axial velocity error due to solid rocket motor performance scatter;-generation of the required velocity change for orbit circularisation(as required) ;-satellite pointing;-satellite release manoeuvres;-empty stage de-orbiting.

French

Domaine(s)
  • Lanceurs (Astronautique)
CONT

Enfin, on attend la signature du contrat de développement du petit lanceur Vega. Il s'agit d'un lanceur composé de trois étages à propergol solide, surmonté d'un module supérieur à liquide dit AVUM (Attitude and Vernier Upper Module) - permettant le contrôle d'attitude et d'orbite, la séparation des satellites et la désorbitisation - ainsi que d'une coiffe.

Spanish

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Record 3 2002-12-23

English

Subject field(s)
  • Spacecraft
  • Solar Energy
CONT

The Advanced Solar Gallium Arsenide Array(ASGA) will provide valuable information on the performance of gallium arsenide(GaAs) solar arrays and on the effects of the low Earth orbit environment on their components. These solar cells, already being used in a trial form to power the Soviet MIR space station, are expected to form the backbone of the next generation of compact, high power-to-weight ratio European solar energy generators.

French

Domaine(s)
  • Engins spatiaux
  • Énergie solaire

Spanish

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