// ORBITAL LOGISTICS AND PROPULSION TERM

Space Segment

Refers to the part of a satellite communication system that is in space, primarily the satellite itself and its onboard equipment.

TECHNICAL DEFINITION

The space segment denotes the orbital component of a satellite system, comprising the satellite spacecraft, its payload (transponders, antennas, sensors), power systems, and propulsion, responsible for transmitting and receiving signals or collecting data from its designated orbit.

BACKGROUND

Axiom Space, Inc., is an American privately funded space infrastructure developer headquartered in Houston, Texas.

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SYNONYMS & ALIASES

  • Orbital segment
  • satellite component
  • spacecraft
  • payload

USAGE NOTE

The space segment communicates with the ground segment to provide various services.

DEVELOPERS

Organizations developing technology related to Space Segment.

  • SpaceX

    Designs, manufactures, and launches advanced rockets and spacecraft. SpaceX is developing Starship, a fully reusable transportation system, and operates Starlink, a large constellation of internet satellites.

  • Airbus Defence and Space

    A leading European player in satellites (Earth observation, communication, navigation), space infrastructure, and launch vehicle components and services.

  • Lockheed Martin Space

    Develops and builds satellites for a variety of missions including GPS, weather forecasting, national security, and scientific research, as well as deep space exploration systems.

  • Maxar Technologies

    Specializes in Earth observation satellites, geospatial intelligence, and advanced space robotics for exploration and on-orbit servicing missions.

  • Rocket Lab

    Develops and operates the Electron small satellite launch vehicle, and also produces the Photon satellite platform for various orbital missions.

  • Planet Labs PBC

    Operates the world's largest fleet of Earth observation satellites, continuously imaging the Earth to provide data and insights for various industries.

  • Northrop Grumman

    A major aerospace and defense technology company involved in developing and manufacturing satellites, spacecraft components, launch vehicles (e.g., Antares), and providing cargo delivery to the ISS.

  • Blue Origin

    Developing a variety of spaceflight systems, including the New Glenn orbital launch vehicle, lunar landers, and future space infrastructure.

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