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RAX-2
RAX-2 (Radio Aurora Explorer 2) is a CubeSat satellite built as a collaboration between SRI International and students at the University of Michigan College of Engineering. It is the second spacecraft in the RAX mission. The RAX-1 mission ended after approximately two months of operation due to a gradual degradation of the solar panels that ultimately resulted in a loss of power. RAX team members applied the lessons learned from RAX-1 to the design of a second flight unit, RAX-2, which performs the same mission concept of RAX-1 (launched in November 2010) with improved bus performance and additional operational modes. Science measurements are enhanced through interactive experiments with high power ionospheric heaters where FAI will be generated on demand.
RAX-2 was launched from Vandenberg Air Force Base in October 2011 atop a Delta II rocket.
==Spacecraft design==
With the exception of the solar panels, the designs of RAX-1 and RAX-2 are largely identical. RAX-1 and RAX-2 are standard 3U CubeSats with physical dimensions of approximately 10 cm x 10 cm x 34 cm and approximate mass of 3 kg. The satellites conform to the 3U CubeSat standard such that they can be launched from the Cal Poly P-POD, a specialized container and deployment mechanism by engineers at Cal Poly San Luis Obispo that many launch providers are able to attach as secondary payloads to their launch vehicles.
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