TERMIUM Plus^®

Fiche 1,  Justifications,  Anglais

Record number: 1, Textual support number: 1 CONT

GOES-9, a three axis stabilized spacecraft, remains stationary in space which allows the [imager and sounder] instruments to be continuously pointed at the earth. The scanning system moves back and forth(i. e., east to west and then west to east) as it moves north to south. While the spacecraft is stationary, it is not absolutely still. Earth location and registration accuracy are [affected] by orbital motions, instrument motion, and thermal distortion. A complicated set of navigation(earth location) and registration(image-to-image location of a landmark) correction schemes are necessary to compensate for these effects.... The registration schemes briefly are : 1) image motion compensation(IMC) and 2) mirror motion compensation(MMC). The IMC removes spacecraft orbit and attitude motion from each image. The MMC automatically corrects for the predictable effects of the instrument mirror motions.  3, fiche 1, Anglais, - mirror%20motion%20compensation

Fiche 1,  Justifications,  Français

Fiche 1,  Justifications,  Espagnol

Fiche 2,  Justifications,  Anglais

Record number: 2, Textual support number: 1 DEF

An orbit correction consisting in an increase of the mean altitude of an artificial satellite.  2, fiche 2, Anglais, - orbit%20raising

Record number: 2, Textual support number: 1 CONT

Following the initial orbit raising attempt, the Terra team developed a revised plan with eight maneuvers required to raise Terra’s orbit. Each maneuver was performed as planned.  3, fiche 2, Anglais, - orbit%20raising

Fiche 2,  Justifications,  Français

Record number: 2, Textual support number: 1 DEF

Correction d'orbite consistant à augmenter l'altitude moyenne d'un satellite artificiel.  2, fiche 2, Français, - rel%C3%A8vement%20d%27orbite

Fiche 2,  Justifications,  Espagnol

Fiche 3,  Justifications,  Anglais

Record number: 3, Textual support number: 1 CONT

Many spacecraft use small rockets called thrusters to move around in space. Thrusters can change the speed and direction of a spacecraft. They allow a spacecraft to steer in space, to jump to a higher orbit, or to fall back to Earth.  4, fiche 3, Anglais, - thruster

Record number: 3, Textual support number: 2 CONT

The control rocket is a vernier or other rocket used to control the attitude of, or slightly change the speed of, a spacecraft.  5, fiche 3, Anglais, - thruster

Record number: 3, Textual support number: 3 CONT

The propulsion subsystem featured sets of small thrusters and a main engine. The thrusters were used to perform Odyssey's attitude control and trajectory correction manoeuvres, while the main engine was used to place the spacecraft in orbit around Mars. The main engine, which used hydrazine propellant with nitrogen tetroxide as an oxidiser, produced a minimum thrust of 65. 3 kilograms of force. Each of the four thrusters used for attitude control produce a thrust of 0. 1 kilogram of force. Four 2. 3-kilogram-force thrusters were used for turning the spacecraft. In addition to miscellaneous tubing, pyro valves and filters, the propulsion subsystem also included a single gaseous helium tank used to pressurise the fuel and oxidiser tanks. The propulsion subsystem weighed 49. 7 kilograms.  4, fiche 3, Anglais, - thruster

Fiche 3,  Justifications,  Français

Record number: 3, Textual support number: 1 DEF

Moteur-fusée de très petite poussée.  4, fiche 3, Français, - micropropulseur

Record number: 3, Textual support number: 1 CONT

Des micropulseurs télécommandés développent des impulsions radiales axiales qui corrigent l'attitude ou la position du satellite sur son orbite.  2, fiche 3, Français, - micropropulseur

Record number: 3, Textual support number: 1 OBS

On prévoit dans de nombreux satellites de petits propulseurs [...] dont les emplacements sont fixes.  5, fiche 3, Français, - micropropulseur

Record number: 3, Textual support number: 2 OBS

Micropropulseur télécommandé.  6, fiche 3, Français, - micropropulseur

Fiche 3,  Justifications,  Espagnol

Fiche 4,  Justifications,  Anglais

Record number: 4, Textual support number: 1 DEF

A command and platform orientation technique that is used especially for the stabilization and orbit correction of the spacecraft.  2, fiche 4, Anglais, - platform%20positioning

Record number: 4, Textual support number: 1 OBS

platform positioning: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG).  2, fiche 4, Anglais, - platform%20positioning

Fiche 4,  Justifications,  Français

Record number: 4, Textual support number: 1 DEF

Technique de commande et d'orientation d'une plateforme (stabilisation, correction d'orbite, etc.).  1, fiche 4, Français, - pilotage%20de%20plateforme

Record number: 4, Textual support number: 1 OBS

plateforme (sing.); plateformes (pl.) : Ces graphies, puisées des Rectifications de l'orthographe recommandées par le Conseil supérieur de la langue française, sont attestées dans le Petit Robert (2004).  3, fiche 4, Français, - pilotage%20de%20plateforme

Record number: 4, Textual support number: 2 OBS

pilotage de plateforme : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).  1, fiche 4, Français, - pilotage%20de%20plateforme

Fiche 4,  Justifications,  Espagnol

Fiche 5,  Justifications,  Anglais

Record number: 5, Textual support number: 1 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.  2, fiche 5, Anglais, - attitude%20and%20Vernier%20upper%20module

Fiche 5,  Justifications,  Français

Record number: 5, Textual support number: 1 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.  2, fiche 5, Français, - module%20sup%C3%A9rieur%20Vernier%2Fcommande%20d%27orientation

Fiche 5,  Justifications,  Espagnol