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Princeton Satellite Systems

Tag: Simulation

  • NASA SBIR Phase III: Low Energy Mission Planning

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    Charles Swanson
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    Hello PSS fans! This is Charles Swanson, recently minted doctor of plasma physics and PSS’s newest employee. It’s my distinct pleasure to discuss our most recent NASA contract: A Phase III SBIR to integrate our Low Energy Mission Planning Toolbox (LEMPT) into NASA’s open source Orbit Determination Toolbox (ODTBX). Have you read about the kinds…

  • Comparing disturbance models

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    Stephanie Thomas
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    A customer recently asked us for help comparing the disturbance analysis available in the CubeSat Toolbox with the full model in SCT Professional, for a 3U CubeSat. That is, to compare CubeSatDisturbanceAnalysis to Disturbances. The CubeSat Toolbox uses a simplified model of the spacecraft geometry as a single set of fixed areas, nominally for a…

  • Reaction Wheel Friction Models

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    Michael Paluszek
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    Reaction wheels are used in many spacecraft for attitude control. A reaction wheel is a momentum exchange device because it controls the spacecraft by exchanging momentum with the rest of the spacecraft. Momentum is exchanged via a motor that is fixed to the spacecraft. As with all rotating parts it is subject to friction. Friction…

  • Why Use Princeton Satellite Systems’ MATLAB Toolboxes?

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    Michael Paluszek
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    Almost all aerospace organizations have extensive libraries of software for simulation, design and analysis. Why then should they use our MATLAB toolboxes? I’ve been working in the aerospace business since 1979. My experience includes: The Space Shuttle Orbiter Dynamics Analysis The GPS IIR control system design The Inmarsat 3 control system design The GGS Polar…

  • Simulating Magnetic Hysteresis Damping

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    Stephanie Thomas
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    CubeSats have caused a renewed interest in magnetic control of satellites, and passive hysteresis damping in particular. Modeling actual hysteresis rods on a satellite is not trivial, and generally requires empirical data on the properties of the rods selected. Our newest CubeSat simulation demonstrates damping using rods in LEO. A permanent magnet is modeled using…

  • PSS MATLAB Toolbox Tutorial Videos

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    Amanda Knutson
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    Over the summer we worked on developing some videos to help customers get started using our MATLAB products. Our MIT intern, James Slonaker, did a fabulous job! Come check out our Toolbox Tutorial Videos on our YouTube Channel! http://www.youtube.com/user/PSSToolboxVideos. If you have any feedback or suggestions for future content, please contact us at info@test.psatellite.com.

  • Asteroid Prospector Orbiting Apophis

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    Michael Paluszek
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    Asteroid Prospector is a 6U CubeSat designed to survey asteroids. It uses a Busek Ion engine to spiral out of earth orbit and rendezvous with an asteroid. It then uses its reaction control thruster system, which employ ECAPS green propellant thrusters, to perform near-asteroid operations. Here is a picture of the spacecraft in circular orbit…

  • New PSS MATLAB Product – Core Control Toolbox

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    Amanda Knutson
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    We have just released our new MATLAB product – the Core Control Toolbox (CCT). We created the Core Control Toolbox as a base product for those customers who may have interests outside of aircraft and spacecraft modeling and simulation. It features many of the general purpose functions found in our Spacecraft Control Toolbox. Like all…