TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

A satellite orbit, the plane of which coincides with that of the equator of the primary body.  2, record 1, English, - equatorial%20orbit

Record number: 1, Textual support number: 1 OBS

equatorial orbit; equatorial orbit of a satellite : designations and definition standardized by the International Electrotechnical Commission(IEC).  3, record 1, English, - equatorial%20orbit

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

Orbite de satellite dont le plan coïncide avec celui de l'équateur du corps principal.  2, record 1, French, - orbite%20%C3%A9quatoriale

Record number: 1, Textual support number: 1 OBS

Pratiquement, orbite d'inclinaison très faible, ou nulle.  3, record 1, French, - orbite%20%C3%A9quatoriale

Record number: 1, Textual support number: 2 OBS

orbite équatoriale; orbite équatoriale de satellite : désignations et définition normalisées par la Commission électrotechnique internationale (CEI).  4, record 1, French, - orbite%20%C3%A9quatoriale

Record 1,  Textual support,  Spanish

Record number: 1, Textual support number: 1 OBS

órbita ecuatorial; órbita ecuatorial de un satélite: designaciones normalizadas por la Comisión Electrotécnica Internacional (CEI).  2, record 1, Spanish, - %C3%B3rbita%20ecuatorial

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

The point in the orbit where the spacecraft crosses the equatorial plane moving from the northern hemisphere to the southern hemisphere.  2, record 2, English, - descending%20node

Record number: 2, Textual support number: 1 OBS

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

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 CONT

[...] endroit où la projection de l'orbite sur le globe terrestre coupe le plan de l'équateur [dans le sens nord-sud].  2, record 2, French, - n%26oelig%3Bud%20descendant

Record number: 2, Textual support number: 1 OBS

Il existe pour chaque orbite un nœud ascendant et un nœud descendant. [...] Ces deux références sont généralement exprimées en degrés par rapport au méridien de Greenwich.  2, record 2, French, - n%26oelig%3Bud%20descendant

Record number: 2, Textual support number: 2 OBS

noeud descendant : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).  3, record 2, French, - n%26oelig%3Bud%20descendant

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 CONT

The final Syncom was... doglegged into an equatorial synchronous orbit... by a combination of third stage, apogee motor, and attitude and velocity control maneuvers.  1, record 3, English, - attitude%20control%20maneuver

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 CONT

[...] le système de stabilisation du satellite comportant [le système de mesure d'attitude] est en mesure d'exécuter correctement toutes les manœuvres d'attitude et de changement de position.  1, record 3, French, - man%26oelig%3Buvre%20d%27attitude

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 OBS

Satellites operating in near-geostationary orbits have an orbit period of 24 hours with an inclination of up to five degrees from the equatorial plane.  1, record 4, English, - near%2Dgeostationary%20orbits

Record number: 4, Textual support number: 2 OBS

near-geostationary orbits: term officially approved by the International Civil Aviation Organization (ICAO).  2, record 4, English, - near%2Dgeostationary%20orbits

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 OBS

Satellites ayant une période de révolution de 24 heures et suivant une orbite qui présente une inclinaison maximale de cinq degrés par rapport au plan équatorial.  1, record 4, French, - satellites%20quasi%20g%C3%A9ostationnaires

Record number: 4, Textual support number: 2 OBS

satellites quasi géostationnaires : terme uniformisé par l'Organisation de l'aviation civile internationale (OACI).  2, record 4, French, - satellites%20quasi%20g%C3%A9ostationnaires

Record 4,  Textual support,  Spanish

Record number: 4, Textual support number: 1 OBS

Satélites que describen órbitas casi geoestacionarias tienen un período orbital de 24 horas con una inclinación de hasta 5 grados respecto al plano ecuatorial.  1, record 4, Spanish, - %C3%B3rbitas%20casi%20geoestacionarias

Record number: 4, Textual support number: 2 OBS

órbitas casi geoestacionarias: término aceptado oficialmente por la Organización de Aviación Civil Internacional (OACI).  2, record 4, Spanish, - %C3%B3rbitas%20casi%20geoestacionarias

Record 5,  Textual support,  French

Record 5,  Textual support,  Spanish

Record 6,  Textual support,  French

Record 6,  Textual support,  Spanish

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 DEF

A satellite orbit which is neither equatorial nor polar.  2, record 7, English, - inclined%20orbit

Record number: 7, Textual support number: 1 PHR

Inclined orbit satellite.  3, record 7, English, - inclined%20orbit

Record 7,  Textual support,  French

Record number: 7, Textual support number: 1 DEF

Orbite de satellite qui n'est ni équatoriale ni polaire.  2, record 7, French, - orbite%20inclin%C3%A9e

Record number: 7, Textual support number: 1 PHR

Satellite sur orbite inclinée.  3, record 7, French, - orbite%20inclin%C3%A9e

Record 7,  Textual support,  Spanish

Record 8,  Textual support,  English

Record number: 8, Textual support number: 1 CONT

With meteorologists aboard, the Apollo X could be flown in polar or synchronous equatorial orbit to augment space weather observations.  1, record 8, English, - synchronous%20equatorial%20orbit

Record 8,  Textual support,  French

Record number: 8, Textual support number: 1 CONT

L'Apollo X pourrait être placé sur une orbite polaire ou sur une orbite équatoriale synchrone pour permettre un plus grand nombre d'observations météorologiques.  1, record 8, French, - orbite%20%C3%A9quatoriale%20synchrone

Record 8,  Textual support,  Spanish

Record 9,  Textual support,  English

Record number: 9, Textual support number: 1 CONT

The local orbital reference system is defined at each point of the orbit by three unit vectors. These vectors are derived from the satellite position and velocity vectors: Vector L is colinear with position vector P (on the axis between the Earth’s centre and the satellite). It defines the yaw axis. Vector T is perpendicular to the orbital plane (vector L, vector V). It defines the pitch axis. Vector R completes the set of orthogonal axes. It lies in the plane defined by Vectors L and V and defines the roll axis. It does not coincide exactly with the velocity vector due to the eccentricity of the orbit.  3, record 9, English, - roll%20axis

Record number: 9, Textual support number: 2 CONT

Spacecraft axes. The three orthogonal axes of rotation : roll, pitch and yaw. If the spacecraft has a recognisable longitudinal axis or a specified forward direction of flight, the axes are analogous to those of an aircraft, where the roll axis is the longitudinal axis; the pitch axis is in the plane of the wings; and the yaw axis is the "vertical" axis, orthogonal to both the roll and pitch axes. The axes are mutually perpendicular, with an "origin" at the vehicle's centre of mass. For a winged spacecraft such as a Space Shuttle, the similarity with an aircraft is obvious. For expendable launch vehicles the roll axis is the axis which is vertical at launch and the other axes are more-or-less arbitrarily assigned since the vehicle rotates about the roll axis in flight.... The axes of a cylindrical spacecraft(e. g. Apollo, Suyuz, etc.) are similar to those of an ELV [Expendable Launch Vehicle] at launch, but one orbit assume the axis-definition of an aircraft(i. e. defined relative to the pilot's seat). The axes of a satellite mirror those of an aircraft "flying along the orbital arc" : the roll axis is aligned with the direction of travel; the yaw axis passes through the sub-satellite point; and the pitch axis is orthogonal to the other two. For a satellite in an equatorial orbit, the pitch axis is aligned approximately with the Earth's spin axis. The pitch axis is also the spin axis for the spin-stabilised satellite.  4, record 9, English, - roll%20axis

Record number: 9, Textual support number: 1 OBS

In the compilation of engineering drawings the three orthogonal axes are often labelled in Cartesian fashion: x=roll, y=pitch, z=yaw. For the three-axis stabilised spacecraft, the x-axis and y-axis are otherwise known as the east-west and north-south axes, respectively; the z-axis passes through the sub-satellite point. This leads to the definition of the box-shaped satellite’s faces as follows: the "plus-x face" faces east; the "minus-x face" faces west; +y faces south; -y faces north; +z is the Earth-pointing face; and -z is the "anti-Earth face."  4, record 9, English, - roll%20axis

Record number: 9, Textual support number: 2 OBS

roll axis; axis of roll: terms officially approved by the International Space Station official approval Group (ISSOAG) and by the RADARSAT-2 Terminology Approval Group (RTAG).  5, record 9, English, - roll%20axis

Record 9,  Textual support,  French

Record number: 9, Textual support number: 1 CONT

Le repère orbital local est défini en chaque point de l'orbite par les trois vecteurs unitaires. Ces vecteurs sont construits à partir du vecteur position et du vecteur vitesse du satellite : le vecteur L est colinéaire au vecteur position P (sur l'axe centre Terre, satellite). Il définit l'axe de lacet. Le vecteur T est perpendiculaire au plan de l'orbite (vecteur L, vecteur V). Il définit l'axe de tangage. Le vecteur R complète le trièdre. Il appartient au plan (vecteur L, vecteur V) et définit l'axe de roulis. Il ne coïncide pas exactement avec le vecteur vitesse à cause de l'excentricité de l'orbite.  1, record 9, French, - axe%20de%20roulis

Record number: 9, Textual support number: 1 OBS

axe de roulis : terme uniformisé par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI) et par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).  2, record 9, French, - axe%20de%20roulis

Record 9,  Textual support,  Spanish

Record 10,  Textual support,  English

Record number: 10, Textual support number: 1 CONT

The local orbital reference system is defined at each point of the orbit by three unit vectors. These vectors are derived from the satellite position and velocity vectors: Vector L is colinear with position vector P (on the axis between the Earth’s centre and the satellite). It defines the yaw axis. Vector T is perpendicular to the orbital plane (vector L, vector V). It defines the pitch axis. Vector R completes the set of orthogonal axes. It lies in the plane defined by Vectors L and V and defines the roll axis. It does not coincide exactly with the velocity vector due to the eccentricity of the orbit.  2, record 10, English, - pitch%20axis

Record number: 10, Textual support number: 2 CONT

Spacecraft axes. The three orthogonal axes of rotation : roll, pitch and yaw. If the spacecraft has a recognisable longitudinal axis or a specified forward direction of flight, the axes are analogous to those of an aircraft, where the roll axis is the longitudinal axis; the pitch axis is in the plane of the wings; and the yaw axis is the "vertical" axis, orthogonal to both the roll and pitch axes. The axes are mutually perpendicular, with an "origin" at the vehicle's centre of mass. For a winged spacecraft such as a Space Shuttle, the similarity with an aircraft is obvious. For expendable launch vehicles the roll axis is the axis which is vertical at launch and the other axes are more-or-less arbitrarily assigned since the vehicle rotates about the roll axis in flight.... The axes of a cylindrical spacecraft(e. g. Apollo, Suyuz, etc.) are similar to those of an ELV [Expendable Launch Vehicle] at launch, but one orbit assume the axis-definition of an aircraft(i. e. defined relative to the pilot's seat). The axes of a satellite mirror those of an aircraft "flying along the orbital arc" : the roll axis is aligned with the direction of travel; the yaw axis passes through the sub-satellite point; and the pitch axis is orthogonal to the other two. For a satellite in an equatorial orbit, the pitch axis is aligned approximately with the Earth's spin axis. The pitch axis is also the spin axis for the spin-stabilised satellite.  3, record 10, English, - pitch%20axis

Record number: 10, Textual support number: 1 OBS

In the compilation of engineering drawings the three orthogonal axes are often labelled in Cartesian fashion: x=roll, y=pitch, z=yaw. For the three-axis stabilised spacecraft, the x-axis and y-axis are otherwise known as the east-west and north-south axes, respectively; the z-axis passes through the sub-satellite point. This leads to the definition of the box-shaped satellite’s faces as follows: the "plus-x face" faces east; the "minus-x face" faces west; +y faces south; -y faces north; +z is the Earth-pointing face; and -z is the "anti-Earth face."  3, record 10, English, - pitch%20axis

Record number: 10, Textual support number: 2 OBS

pitch axis: term officially approved by the International Space Station official approval Group (ISSOAG) and by the RADARSAT-2 Terminology Approval Group (RTAG).  4, record 10, English, - pitch%20axis

Record 10,  Textual support,  French

Record number: 10, Textual support number: 1 CONT

Le repère orbital local est défini en chaque point de l'orbite par les trois vecteurs unitaires. Ces vecteurs sont construits à partir du vecteur position et du vecteur vitesse du satellite : Le vecteur L est colinéaire au vecteur position P (sur l'axe centre Terre, satellite). Il définit l'axe de lacet. Le vecteur T est perpendiculaire au plan de l'orbite (vecteur L, vecteur V). Il définit l'axe de tangage. Le vecteur R complète le trièdre. Il appartient au plan (vecteur L, vecteur V) et définit l'axe de roulis. Il ne coïncide pas exactement avec le vecteur vitesse à cause de l'excentricité de l'orbite.  2, record 10, French, - axe%20de%20tangage

Record number: 10, Textual support number: 1 OBS

axe de tangage : terme uniformisé par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI) et par le Groupe de travail de la terminologie de RADARSAT-2.  3, record 10, French, - axe%20de%20tangage

Record 10,  Textual support,  Spanish

Record 11,  Textual support,  English

Record number: 11, Textual support number: 1 CONT

The orbit inclination is the angle between the orbital plane and the equatorial plane, measured at the ascending node in the direction of orbital motion, the orbit is called direct when the inclination is smaller than 90° and retrograde when the inclination is larger than 90°.  3, record 11, English, - orbit%20inclination

Record number: 11, Textual support number: 1 OBS

orbit inclination; orbital inclination: terms officially approved by the RADARSAT-2 Terminology Approval Group (RTAG).  4, record 11, English, - orbit%20inclination

Record 11,  Textual support,  French

Record number: 11, Textual support number: 1 DEF

Angle formé par le plan de l'orbite d'un satellite et un plan fondamental qui, pour les satellites artificiels de la Terre, est le plan de l'équateur terrestre.  2, record 11, French, - inclinaison%20d%27orbite

Record number: 11, Textual support number: 1 OBS

L'inclinaison se compte de 0 à 90° dans le cas d'une orbite directe et de 90° à 180° dans le cas d'une orbite rétrograde.  2, record 11, French, - inclinaison%20d%27orbite

Record number: 11, Textual support number: 2 OBS

inclinaison d'orbite : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).  3, record 11, French, - inclinaison%20d%27orbite

Record 11,  Textual support,  Spanish

Record 12,  Textual support,  English

Record number: 12, 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 12, English, - circular%20equatorial%20orbit

Record 12,  Textual support,  French

Record number: 12, 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 12, French, - orbite%20circulaire%20%C3%A9quatoriale

Record 12,  Textual support,  Spanish

Record 13,  Textual support,  English

Record number: 13, Textual support number: 1 CONT

A satellite in geosynchronous equatorial orbit(GEO) is located directly above the equator, exactly 22, 300 miles out in space. At that distance, it takes the satellite a full 24 hours to circle the planet. Since it takes Earth 24 hours to spin on in its axis, the satellite and Earth move together. So, a satellite in GEO always stays directly over the same spot on Earth.  2, record 13, English, - geosynchronous%20equatorial%20orbit

Record 13,  Textual support,  French

Record 13,  Textual support,  Spanish

Record 14,  Textual support,  English

Record number: 14, Textual support number: 1 DEF

Orbit in which an equatorial satellite revolves about the Earth at the same angular rate as the Earth rotates on its axis. From the Earth, the satellite thus appears to be stationary over a point on the Earth.  1, record 14, English, - stationary%20orbit

Record 14,  Textual support,  French

Record number: 14, Textual support number: 1 DEF

Orbite sur laquelle un satellite équatorial se déplace autour du globe avec la même vitesse angulaire que celle de la Terre tournant autour de son axe. Vu d'un point de la Terre, le satellite paraît donc immobile.  1, record 14, French, - orbite%20stationnaire

Record 14,  Textual support,  Spanish

Record number: 14, Textual support number: 1 DEF

Órbita que describe un satélite ecuatorial girando alrededor de la Tierra, a la misma velocidad angular que la de rotación de la Tierra. Desde la Tierra, dicho satélite parece permanecer estacionario sobre un punto de ésta.  1, record 14, Spanish, - %C3%B3rbita%20estacionaria

Record 15,  Textual support,  English

Record number: 15, Textual support number: 1 OBS

Netherlands/Indonesia; proposed remote sensing satellite in near equatorial orbit to optimize coverage of equatorial region.  1, record 15, English, - Tropical%20Earth%20Observation%20System

Record 15,  Textual support,  French

Record number: 15, Textual support number: 1 OBS

Pays-Bas/Indonésie; projet de satellite de télédétection à orbite quasi-équatoriale devant permettre de desservir au maximum les zones équatoriales.  1, record 15, French, - Syst%C3%A8me%20d%27observation%20des%20zones%20tropicales

Record 15,  Textual support,  Spanish

Record 16,  Textual support,  English

Record number: 16, Textual support number: 1 CONT

The proposed mission would study these [X-ray] phenomena with four instruments : a large-area proportional counter, a phoswich detector, a four-component all-sky wide-field camera array and a gamma-burst detector. The instruments will be mounted on a free-flying spacecraft placed in a low altitude(600 km) circular equatorial orbit.  1, record 16, English, - gamma%2Dburst%20detector

Record 16,  Textual support,  French

Record 16,  Textual support,  Spanish

Record 17,  Textual support,  French

Record 17,  Textual support,  Spanish

Record 18,  Textual support,  English

Record number: 18, Textual support number: 1 CONT

three [synchronous] satellites ... will provide complete global coverage with the exception of a small area at the North and South poles. ...  1, record 18, English, - global%20coverage

Record number: 18, Textual support number: 2 CONT

Three satellites in synchronous equatorial orbit to provide nearly worldwide coverage.  1, record 18, English, - global%20coverage

Record 18,  Textual support,  French

Record number: 18, Textual support number: 1 CONT

Le premier réseau, celui d'Intelsat, [...] ne fut véritablement à couverture mondiale qu'en 1969 avec les satellites de la série Intelsat III.  1, record 18, French, - couverture%20mondiale

Record 18,  Textual support,  Spanish