USNA Standard CubeSat Bus USNA‐P1 CubeSat (USNA‐14) Jin Kang kang@usna.edu Specifications EA 470 United States Naval Academy 2 Activities • Two satellites launching (USNA‐14, 15) – Complete by May 2016 – Environment test in May 2016 – Hands‐off 1 June • Leverage current satellite architecture – Learn from satellite integration and testing – Apply knowledge to new design • Documentation will be heavily emphasized Mission Objectives • • • • • • Buildable in 90 day time frame Command and Data Handling Electrical Power System Communications Attitude Determination and Control Documentation for easy reconstruction EA 470 United States Naval Academy 4 Goal of Project • Develop USNA standard bus – Modular hardware – Modular software – High capability to be able to use on multitude of missions – Small mass and volume • Demonstrate functionality Concept of Operation StaCSat Payloads IR Sensor Interface Charged Particle Detector Electrical Power Helium Radio Additional Radio Your Idea Here Thrusters Motherboard and Processor 6 months EA 470 90 days United States Naval Academy 6 Stack EA 470 United States Naval Academy 7 Small Spacecraft Propulsion • Extend life of CubeSats • Electric Propulsion • Collaboration with GWU and NASA Goddard • Launch in Sept 2015 • Mission is to integrate 4 vacuum arc thruster systems on a 1.5U CubeSat Propulsion Integration • Performance analysis using Simulink • Three Maneuvers: – De‐tumbling, pointing control, and delta‐V • Propulsion system integration testing • STK mission planning Example Tasks Systems Engineering Budget analysis (power, mass, link, etc.) Solar panel design, development, testing GlobalStar radio integration Release mechanism design, development, testing • Integration and testing (component level + system level) • • • • •