JC
J. Carvajal Godínez
9 records found
1
Authored
Since the launch of the first artificial satellite in October 1957, both satellite computers and their onboard software have changed significantly to integrate more functionalities and making mission operations more reliable. As a result, satellites have become more sophisticated
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Bus saturation is deemed as one of the primary causes of delays in the data propagation between spacecraft components. However, the conditions under which bus congestion can affect measurements variability were not well characterized before. This paper presents a bus saturatio ...
Project Irazú
Advances of a store & forward CubeSat mission for environmental monitoring in Costa Rica
In 2007, the Government of Costa Rica announced to the world its ambitious goal of turning into the first carbon neutral country by 2021. Following the announcement, governmental institutions, universities, NGOs and private companies have worked arduously on the creation of diffe
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The Central American region has embarked on different endeavors related to space engineering in recent years. CubeSat missions are currently being independently developed in Costa Rica and Guatemala, with the main purpose of training the human resources, creating the know-how, an
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Failure detection, isolation, and recovery is an essential requirement of any space mission design. Several spacecraft components, especially sensors, are prone to performance deviation due to intrinsic physical effects. For that reason, innovative approaches for the treatment of
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Cubesats to pocketqubes
Opportunities and challenges
In the last two decades, CubeSats have changed the perception of satellite missions aided by standardization and usage of commercial-off-the-shelf components. CubeSats have also proven the feasibility of low cost and short development time spac ...
Contributed
There are several benefits of using autonomous sensors in spacecraft. Avoidance of wired connections reduces cost, mass, and increases the flexibility and reliability of the system. The impact of wire reduction can be significant, especially for small satellites with many sensors
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Miniaturization and cost reduction of hardware components have created a trend in the space industry where the traditional centralized computer is being replaced by distributed computer architecture. However, this trend comes with a cost: the on-board software complexity of the s
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