Orbital Period Of Leo Satellite

High flying geostationary satellites travel at about 11 000 kilometers per hour to avoid falling back to earth while leo satellites must travel at about 27 000 kph completing a full circuit of.
Orbital period of leo satellite. Most of the manmade objects in outer space are in leo. When the sun is quiet satellites in low earth orbit have to boost their orbits about four times per year to make up for atmospheric drag. The third reason to move a satellite is to avoid space junk orbital debris that may be in its path. 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.
Orbit of a satellite calculator high accuracy calculation welcome guest. Calculates the orbital radius and period and flight velocity from the orbital altitude. When solar activity is at its greatest a satellite may have to be maneuvered every 2 3 weeks. More technically it is an orbit arranged so that it precesses through one complete revolution each year so it always maintains the same relationship with the sun.
A sun synchronous orbit sso also called a heliosynchronous orbit is a nearly polar orbit around a planet in which the satellite passes over any given point of the planet s surface at the same local mean solar time. There is a large variety of other sources that define leo in terms of. V g m r the orbital period t may be computed by dividing the distance travelled in one orbit by the velocity. Circular orbit leo orbital mechanics orbital period orbital speed by smallsat in space flight orbital mechanics on january 16 2013.
We now note that the mass of the satellite m disappears from the equation and we are left with an expression relating the orbital velocity to the orbital radius. Objects below approximately 160 kilometers 99 mi will experience very rapid orbital decay and altitude loss.