TERMIUM Plus®

From: Translation Bureau

On social media

Consult the Government of Canada’s terminology data bank.

Z1 TRUSS SEGMENT [3 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2005-03-08

English

Subject field(s)
  • Orbital Stations
CONT

The first segment to be launched into orbit, designated Z1, will not permanently attach to other truss segments. The Z1 segment is a 10 ft(3 m) cubelike truss made from six machined bulkheads that are bolted together. The truss houses four control moment gyroscopes that form part of the guidance, navigation, and control system. The location of Z1 is nearly in the middle of the station, which makes it an ideal location for the gyroscopes. A micrometeor shield composed of three sheets of 0. 25 in.(6 mm) aluminum about 5 in.(127 mm) apart protects the sensitive gyroscopes from debris. The 18, 300 lb(8, 300 kg) Z1 segment is currently scheduled to be launched by the end of this year. The truss is a transitional structure that will connect to the pressurized Unity module already on orbit. Astronauts will tighten 16 motorized bolts on the circular coupling on the Unity module side into nuts on Z1 and connect the associated utility plug-ins. Pressurized units generally have circular couplings and nonpressurized unit connectors are rectangular.

CONT

The Z1 truss segment is equipped with several spacewalk aids : Two EVA tool stowage devices(ETSDs), 22 worksite interface(WIF) sockets, 1 flight-releasable grapple fixture(FRGF), 11 trusses, 2 tray launch restraints, numerous standard handholds and handrails, and several custom handles.

OBS

The first piece of truss structure - we refer to it as the Z1 Truss because it is the zenith or uppermost - will be on the uppermost part of the station or the top; the zenith.

OBS

Z1 truss; integrated truss structure Z1; Z1; ITS-Z1: terms and abbreviations officially approved by the International Space Station official approval Group (ISSOAG).

PHR

Z1 keel pin assembly, truss latch.

French

Domaine(s)
  • Stations orbitales
CONT

[...] l'élément de structure Z1 [est une] pièce unique en son genre. Il s'agit d'un élément de structure externe à l'intérieur duquel se trouvent des gyroscopes et du matériel de télécommunication et qui servira plus tard de plate-forme de montage des immenses panneaux solaires qui alimenteront la Station spatiale internationale en électricité.

CONT

Z1 est une plate-forme de communication [qui] supporte des systèmes de communication en bande Ku et S. Le système en bande Ku permet une transmission de données à haut-débit vers le sol, à la vitesse de 50 Mbps Mégabits par secondes). C'est suffisant pour transmettre 4 signaux vidéo en même temps. Ce système servira donc pour la liaison télévisée, mais aussi pour le fret à bord.

OBS

poutre Z1; segment de poutre intégrée Z1; Z1; ITS-Z1 : termes et abréviations uniformisés par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).

PHR

Structure Z1 porteuse de la poutrelle.

PHR

Structure en treillis Z-1.

Spanish

Save record 1

Record 2 2003-05-23

English

Subject field(s)
  • Orbital Stations
CONT

Relocate P6 Truss from atop Z1 Truss to final assembly locationattached to P5 Truss(becomes final port-side truss segment).

OBS

The assembly sequence of the trusses on the International Space Station does not usually correspond to the number assigned to each segment of the struss structure. Trusses are numbered as follows: P1, P3, P4, P5, P6 (port side) and S1, S3, S4, S5, S6 (starboard side). In this case, the P6 truss is referred to as the final port-side truss segment.

OBS

final port-side truss segment: term officially approved by the International Space Station official approval Group (ISSOAG).

Key term(s)
  • final port truss segment

French

Domaine(s)
  • Stations orbitales
OBS

La séquence d'assemblage des poutres bâbord (P1, P3, P4, P5, P6) et tribord (S0, S1, S3, S4,S5, S6) de la Station spatiale internationale diffère habituellement de l'ordre de numérotation des segments structuraux de la grande poutrelle. Dans le cas présent, la poutre P6 correspond au dernier segment bâbord de la poutrelle.

OBS

dernier segment bâbord de la poutrelle : terme uniformisé par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).

Spanish

Save record 2

Record 3 2001-10-25

English

Subject field(s)
  • Orbital Stations
CONT

The P6 truss ... houses a deployable radiator. Ammonia coolant lines from the U.S. laboratory module ultimately will be connected through the Z1 truss to the radiator to dissipate heat generated by the lab’s electronic gear. At launch, P6 weighs 17.5 tons and measures 16-by-16-by 49 feet.

CONT

The P6 truss will connect to Z1 to provide auxiliary power for station construction and primary power to the U. S. laboratory that will be attached to the Unity module early in the launch schedule. When the station is nearly fully assembled, P6 will then be removed from the Z1 truss and placed in its final position on the end of the station's main truss. The rectangular coupling where the P6 segment was attached to Z1 will remain unoccupied.

OBS

The P6 truss is a component of the photovoltaic module.

OBS

P6 truss; integrated truss structure P6; P6; ITS-P6: terms and abbreviations officially approved by the International Space Station official approval Group (ISSOAG).

French

Domaine(s)
  • Stations orbitales
CONT

À l'aide du Canadarm, Garneau saisira [...] la poutrelle P6 - une section de la poutrelle principale de la station sur laquelle les panneaux solaires ont été fixés avant le lancement. Garneau amènera ensuite l'ensemble, qui pèse 16 000 kilogrammes et mesure environ 14 mètres de longueur, à quelques centimètres à peine d'une autre section de poutrelle qui fait déjà partie de la station. Appelée Z1, cette section est munie d'un système d'attache en forme de pince qui sera utilisé pour saisir P6 et la maintenir en place.

OBS

La poutre P6 est une des composantes du module photovoltaïque.

OBS

poutre P6; segment de poutre intégrée P6; P6; ITS-P6 : termes et abréviations uniformisés par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).

Spanish

Save record 3

Copyright notice for the TERMIUM Plus® data bank

© Public Services and Procurement Canada, 2026
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau

Display options

Change the order of display of the official languages of Canada
Option to display the non-official languages (Spanish or Portuguese)
Display definitions, contexts, etc., on records

Features

GCtranslate (available on the Government of Canada network only)

Use this artificial intelligence prototype to translate Government of Canada content up to and including Protected B. Available to employees of selected departments and agencies only.

Writing tools

The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.

Glossaries and vocabularies

Access Translation Bureau glossaries and vocabularies.

Date Modified: