An analysis of geosychronous orbits and geostationary orbits

Geosynchronous Polar Orbits The more correct term would be near polar orbits. These orbits have an inclination near 90 degrees. This allows the satellite to see virtually every part of the Earth as the Earth rotates underneath it.

An analysis of geosychronous orbits and geostationary orbits

Tweet Key Difference: Geostationary orbit is a kind of geosynchronous orbit but with an addition feature. It remains stationary with respect to a single point on the surface of the planet. Many people confuse geosynchronous orbit and geostationary orbit.

People tend to think that both are the same and often use them as synonyms. However, geostationary orbit is a type of geosynchronous orbit.

To understand these orbits, one must be clear about the concept of an orbit. An orbit is a curved path that is taken by an object around a star, planet, moon, etc. Thus, we can simply define it "as the path determing the motion of a body around the other body".

The most common example is our solar system in which planets like Earth, Saturn and Jupiter follow an orbit around the sun.

Geosynchronous orbit has the same orbital period as the rotation period of a central body around which the object is following this path. The term is mostly used in context to satellites that move around the Earth.

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Earth takes 24 hours to complete one rotation and thus geosynchronous satellites of the Earth also takes 24 hours to complete their orbit.

There are many geosynchronous orbits that are present around the Earth. We all are aware with the fact, that the Earth rotates about an imaginary line that passes through the North and South poles of the planet.

This particular line can also be referred to as the axis of rotation. To simplify, keep your thump pointing upward in a thumps up position. The direction of thumb can denote the axis of rotation of the Earth and the direction of fingers can describe the direction of rotation of the Earth.

If we want that an object must remain in a fixed location in an orbit with respect to the Earth, then we have to consider a few points like: Satellite around Earth is also following an orbit path thus, it is also moving.

To make a satellite look constant or fixed with respect to the Earth, the orbit needs to be a circular orbit and that too stationed over the equator.

Advantages and disadvantages of GEO | Geosynchronous orbit | Geostationary Orbit

If a satellite will be fixed with these attributes, the movement of the Earth and satellite will be synchronized and the satellite's position will be fixed with respect to a fixed location on the Earth. Features of geostationary orbit around the Earth: No tracking equipment is required to send or receive signals from the satellites placed in this orbit.

Geostationary satellites are used to provide continuous service over a large and wide area. These satellites placed in geostationary orbit have trouble monitoring activities near the poles.

From the above explanation, it is clear that a geostationary orbit is a type of geosynchronous orbit. However, in case of a satellite, the choice of a particular orbit depends upon its mission.

There can be many geosynchronous orbits but only one geostationary orbit with respect to Earth as the central body.

Image Courtesy:A system of inclined geosynchronous satellite orbits has a service area defined on a surface of the earth.

An analysis of geosychronous orbits and geostationary orbits

The service area has elevation angles greater than a predetermined minimum elevation angle elevation angle from the horizon. A satellite has an orbit with respect to the earth having a sky track when viewed from within said service area. Advantages and disadvantages of GEO | Geosynchronous orbit | Geostationary Orbit.

There are orbits around the earth where satellites are installed after their launch. Following are the features of GEO orbit. • Orbit period: 24 hours • Orbit height from Earth: km • Life of satellite in the orbit: Long • Propagation loss in the orbit: Highest • Number of satellites to cover entire regions on Earth: 3.

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“Space Law/Space WARC: An Analysis of the Space Law Issues Raised at the ITU World Administrative Radio Conference on the Geostationary Orbit” Houston Journal of International Law, Vol. 8, , p. Types of Orbits. What we have just described in the previous section is how a satellite orbits the Earth - it is just like the baseball that goes all the way around the Earth.

An analysis of geosychronous orbits and geostationary orbits

graveyard geostationary ring, to limit the lifetimes of debris at this orbits is not so practical since inclination manoeuvres are quite expensive. Finally, the discovery of high area-to-mass debris in eccentric orbits around the GEO region [11] renewed the interest in the stability of graveyard orbits [12].

They each make an orbit in about 99 minutes, complete over 14 orbits per day, and provide complete coverage of the Earth every 16 days. There is an 8-day offset between the two satellites. What are the orbit paths of the Landsat satellites? | Landsat Missions.

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