Low Orbit Satellite Height

A satellite with a low eccentricity orbit moves in a near circle around the earth.

Low orbit satellite height.

In practice only 1 1 ratio geosynchronous and 1 2 ratios semi synchronous are common. The mean orbital velocity of any satellite that needs to reach an leo should be 7 5km s 27 000km h. This means the track of the satellite as seen from the central body will repeat exactly after a fixed number of orbits. Where all of our satellites reside and where the iss orbits the planet.

As the satellite moves the earth rotates underneath it. A low earth orbit leo is an earth centred orbit with an altitude of 2 000 km 1 200 mi or less approximately one third of the radius of earth or with at least 11 25 periods per day an orbital period of 128 minutes or less and an eccentricity less than 0 25. The federal communications commission doesn t believe low earth orbit satellite providers can deliver internet service while keeping latency below 100ms. The satellites orbit in a circular low earth orbit at about 500 km 310 mi altitude in a high inclination orbit for a planned six to twelve month duration.

An orbit whose period is a rational multiple of the average rotational period of the body being orbited and in the same direction of rotation as that body. By stephanie mlot june 15 2020. Most of the manmade objects in outer space are in leo. The semi synchronous orbit is a near circular orbit low eccentricity 26 560 kilometers from the center of the earth about 20 200 kilometers above the surface.

Objects in low earth orbit are at an altitude of between 160 to 2 000 km. There is a large variety of other sources that define leo in terms of. The satellites communicate with three testing ground stations in washington state and california for short term experiments of less than ten minutes duration roughly daily. Amazon plans to launch a constellation of 3 236 satellites into low earth orbit in order to provide internet to unserved and underserved communities around the world.

Eccentricity refers to the shape of the orbit. Objects below approximately 160 kilometers 99 mi will experience very rapid orbital decay and altitude loss. In addition to height eccentricity and inclination also shape a satellite s orbit. The relatively low altitude of satellites in this orbit offers some attractive perks for satellite manufacturers and hobbyists.

This value decreases as the altitude increases. A low earth orbit leo is an orbit around earth with an altitude above earth s surface of 2 000 kilometers 1 200 mi and an orbital period between about 84 and 127 minutes.