Low Earth orbit
A low Earth orbit (LEO) is usually described as an orbit inside the area which comes from the Earth’s surface up to an altitude of 2,000 kilometres (1,200 miles). Other definitions use other numbers such as orbital eccentricity and orbital period. Satellites in LEO go around the Earth many times per day.
Also, internet satellite constellations such as Starlink satellites are placed in the LEO orbit.[1]
Satellites are put in low Earth orbit if the things they do must be done in outer space but need not be far away. Some satellites are in LEO to photograph the Earth, for example some weather satellites and Earth resource satellites. Most space telescopes are in LEO since they only have to be above the Earth's atmosphere. The International Space Station is in LEO.
Low Earth Orbit Media
A view from the International Space Station in a low Earth orbit (LEO) at about 400 km (250 mi), with yellow-green airglow visible at Earth's horizon, where roughly at an altitude of 100 km (62 mi) the boundary between Earth and outer space lies and flying speeds reach orbital velocities.
Scaled diagram of several significant satellites of Earth
Roughly half an orbit of the International Space Station
References
- ↑ Latifiyan, Pouya; Mazlumi, Farhad; HabibNejad, Saeed (2024). "1". Satellite Internet in the Aviation Industry. Aviation Electronics and Telecommunications Engineering Department (1st ed.). Tehran, Iran: Civil Aviation Technology College. doi:10.13140/RG.2.2.25125.92640.
