Migrations in the Sea
Science

A satellite with an orbital period the same as the Earth's rotation period
Geostationary satellite
A satellite with an orbital period the same as the Earth's rotation period. Geostationary satellite. A geostationary satellite orbits Earth at the same speed as Earth's rotation, making it appear stationary over one spot.

A satellites which passes above both poles of Earth
Polar satellites
A satellite which passes above both poles of Earth is called a polar satellite. Polar satellites orbit Earth in a way that allows them to see every part of the planet as it rotates, making them ideal for weather and environmental monitoring.