// ORBITAL LOGISTICS AND PROPULSION TERM
Polar Orbit
An orbit that passes over or very near the Earth's geographic poles on each revolution.
TECHNICAL DEFINITION
A polar orbit is a type of Earth orbit where a satellite passes over or very close to both the North and South Poles on each revolution, providing global coverage and enabling remote sensing, weather monitoring, and reconnaissance missions.
BACKGROUND
The International Space Station (ISS) is a space station in low Earth orbit (LEO). It is the product of the International Space Station program and is operated by five partner space agencies: NASA, Roscosmos (Russia), ESA (Europe), JAXA (Japan), and CSA (Canada). It is the first space station built, maintained and crewed through international cooperation and the largest human spacecraft ever constructed. It is an orbital research station, where scientific experiments in microgravity are conducted and the space environment is studied. Since 2 November 2000, it has hosted the longest continuous presence of humans in space. Alongside Tiangong, it is one of the only two currently operational space stations.
READ MORE ON WIKIPEDIASYNONYMS & ALIASES
- Polar-crossing orbit
- high-inclination orbit
USAGE NOTE
Weather satellites frequently use polar orbits to achieve comprehensive global atmospheric data collection.
DEVELOPERS
Organizations developing technology related to Polar Orbit.
A private aerospace manufacturer and space transportation services company that frequently launches satellites, including its own Starlink constellation, into polar and sun-synchronous orbits using its Falcon 9 rockets, particularly from Vandenberg Space Force Base.
An American public Earth imaging company that operates the largest constellation of Earth observation satellites. The majority of their satellites are in sun-synchronous orbits, a specific type of polar orbit, enabling them to image the entire globe daily.
A public American aerospace company with a New Zealand subsidiary, specializing in small satellite launches. Their Electron rocket regularly delivers customer payloads to precise polar orbits for Earth observation, communications, and scientific missions.
A Finnish company that owns and operates the world's largest constellation of Synthetic Aperture Radar (SAR) satellites. Their satellites are in polar orbits, which allows for frequent and reliable monitoring of any location on Earth, regardless of weather conditions or time of day.
The United States' civil space agency, which operates numerous scientific satellites in polar orbit for Earth science. Missions like the Landsat series and the Joint Polar Satellite System (JPSS) provide critical long-term data on climate, weather, and the environment.
An intergovernmental organization of 22 member states dedicated to the exploration of space. ESA's Copernicus Programme, with its Sentinel family of satellites, heavily utilizes polar orbits to provide comprehensive Earth observation data for environmental and security purposes.
A space-to-cloud data and analytics company that operates a large constellation of multipurpose nanosatellites. Many of their satellites are in polar orbits to collect global data on weather, maritime, and aviation activity.
A manufacturer of spacecraft, components, and instruments for national defense, civil space, and commercial space applications. They have built numerous satellites and instruments designed specifically for polar orbit missions, including the spacecraft for the Joint Polar Satellite System (JPSS).