CanSat Contest simulates the fly of miniaturized satellites named CanSat (Can Satellite).
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The CanSat is an autonomous devices enclosed within the volume of a soda can.
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The volume of a CanSat has the following characteristics: 66mm diameter, 115mm height for a masse of 350gr.
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As the CanSat have small volume and are very affordable, the CanSat contest is great for learning more about space technologies.
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The CanSats are deployed from a rocket (the launch vehicle) at a height of about 3000m depending on the competition (see all the details in the contest rules).
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The CanSats are not orbited and are always deployed in the athmosphere.
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The CanSat volume cannot increase until the CanSat is deployed out of the rocket.
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This means that external antenna is allowed only after the CanSat left the rocket.
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A parachute (that increase the volume of the CanSat) is usually used to limit damages. The aim is to reuse the CanSat for several missions.