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Advantages of Sun synchronous orbit | disadvantages of Sun synchronous orbit

This page covers advantages and disadvantages of Sun synchronous orbit and its basics. It mentions benefits or advantages of Sun synchronous orbit and drawbacks or disadvantages of Sun synchronous orbit.

What is Sun synchronous orbit?

Introduction:
An earth satellite orbit in which the orbital plane is near polar and the altitude is such that satellite passes over all places on earth having same latitude twice in each orbit at the same local suntime. This orbit lies at a altitude between 700 to 800 Km above the Earth.

Sun synchronous orbit

The satellite in this orbit shift its orbital plane by approx. one degree/day. Satellites put in this orbit cover each area of the world at a constant local time of the day called local sun time.

Benefits or advantages of Sun synchronous orbit

Following are the benefits or advantages of Sun synchronous orbit:
➨The orbit is designed in such a way that angle between orbital plane and sun remains constant resulting into consistent lighting conditions.
➨The satellites in this orbit can help in monitoring activities near the poles unlike other satellites.
➨The Sun synchronous orbiting satellites cover entire globe on regular basis and provides repetitive coverage on periodic basis. Satellite passes over all places on earth having same latitude twice in each orbit at the same local suntime.
➨Low altitude of this orbit allows good ground resolution.
➨It offers easy active measurements with the help of Radar or using Lidar.

Drawbacks or disadvantages of Sun synchronous orbit

Following are the drawbacks or disadvantages of Sun synchronous orbit:
➨The satellite launched in this orbit can not view a particular spot on the Earth's surface continuously. This is done by geosynchronous orbiting satellite.
➨For weather forecasting the use of polar orbiting satellite data is limited unlike Geosynchronous orbiting satellite.
➨Sun synchronous orbiting satellite passes over polar parts on every orbital period which is 2 times a day where as geosynchronous orbiting satellite orbital period is approx. 24 hours. Hence Geosynchronous satellite can view a particular spot on the Earth's surface continuously.

Conclusion: In order to understand advantages of Sun synchronous orbit and disadvantages of Sun synchronous orbit one has to understand Sun synchronous orbit basics >>.



Satellite related links

To know more about satellite go through following mentioned links:
Satellite tutorial   what is a satellite   Satellite frequency bands of operation   Parts of a satellite   Satellite Orbits   Satellite Services   Satellite types   Satellite Capacity Allocation   Satellite Network Configuration   Satellite Applications   Satellite Terminology  Satellite Applications   Satellite Launch Procedure   Remote sensing satellites   Satellite TTC   Satellite Launch Service Providers   Satellite Parts Manufacturers  


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