## What determines the orbital period of a satellite?

The orbital period of a satellite depends on the mass of the planet being orbited and the distance of the satellite from the centre of the planet.

## What is the relationship between the radius of orbit of a satellite and its period?

By observing the time between transits, we know the orbital period. Kepler’s Third law can be used to determine the orbital radius of the planet if the mass of the orbiting star is known (R3=T2−Mstar/Msun, the radius is in AU and the period is in earth years).

**What is the orbital period of the satellite?**

The period of a satellite is the time it takes it to make one full orbit around an object. The period of the Earth as it travels around the sun is one year. If you know the satellite’s speed and the radius at which it orbits, you can figure out its period.

### What is the relationship between orbital velocity and orbital radius?

As seen in the equation v = SQRT(G * Mcentral / R), the mass of the central body (earth) and the radius of the orbit affect orbital speed.

### How does the orbital velocity of a satellite depends on the mass of the satellite?

Yes, the speed of a satellite does depend on the mass of the Earth. The total amount of (net) work done by gravity as a satellite makes a complete orbit is zero. The gravitational force has a component in the direction of the satellite’s motion as the satellite moves toward the Sun (or Earth, or whatever).

**What is the orbital period of a satellite Mcq?**

Explanation: The period is the time it takes for a satellite to complete one orbit. It is also called the sidereal period. A sidereal orbit uses some external fixed or apparently motionless object such as the sun or star for reference in determining a sidereal period.

The velocity of this orbit depends on the distance from the object to the center of the Earth. The velocity has to be just right, so that the distance to the center of the Earth is always the same. The orbital velocity formula contains a constant, G, which is called the “universal gravitational constant”.

#### What are factors that orbital speed and period depends on?

The period, speed and acceleration of a satellite are only dependent upon the radius of orbit and the mass of the central body that the satellite is orbiting.

**How is the orbital period of a satellite determined?**

For a satellite to appear fixed at a position above a certain place on the Earth, its orbital period around the Earth must be exactly equal to the rotational period of the Earth about its axis. Consider a satellite of mass m moving in a circular orbit around the Earth at a distance r from the centre of the Earth.

## What happens to the Earth during a satellite orbit?

During one half of the orbit, the satellite views the daytime side of the Earth. At the pole, satellite crosses over to the nighttime side of Earth. As the satellites orbit, the Earth turns underneath. By the time the satellite crosses back into daylight, it is over the region adjacent to the area seen in its last orbit.

The synodic period is the amount of time that it takes for an object to reappear at the same point in relation to two or more other objects (e.g. the Moon ‘s phase and its position relative to the Sun and Earth repeats every 29.5 day synodic period, longer than its 27.3 day orbit around the Earth,…

**How does eccentricity and inclination affect the orbit of a satellite?**

In addition to height, eccentricity and inclination also shape a satellite’s orbit. Eccentricity refers to the shape of the orbit. A satellite with a low eccentricity orbit moves in a near circle around the Earth. An eccentric orbit is elliptical, with the satellite’s distance from Earth changing depending on where it is in its orbit.