A library containing functions for simulating the orbital environment of a spacecraft.
The Physics Library functions in this library allow you to work with the various aspects of a spacecrafts environment including:
- Position: The physical location of the spacecraft wrt various frames of reference.
- Attitude: The orientation of the spacecraft in various frames of reference.
- Power: Power produced and used by the spacecraft.
- Temperature: Thermal inputs, outputs and flows, and their effect on overall temperature.
- Forces: Linear and angular forces exerted both externally and internally.
- Hardware State: Aspects of the internal state of various subsystems.
The goal of this library is to provide for as full a simulation as possible of the complete spacecraft. The Physics typedefs are used to define the structure of the spacecraft. Both Static and Dynamic definitions exist for element. The elements are described using the following categories:
- Structures: Physical elements of the spacecraft. These are located in the Body frame of the spacecraft and can be:
- Panel: 4 corners and a thickness
- Box: 6 sides and a wall thickness
- Cylinder: 2 ends and a radius
- Sphere: center and a radius
- Components: Logical elements of the spacecraft. They represent additional physical elements of the spacecraft that are not purely structural. They have physical qualities (mass, power, temperature) tied to them, and are in turn tied to a Structure.
- Devices: Specialized Component extensions. Each different type has specialized information tied to it, as well as being tied to a Component. Currently supported Devices are:
- Reaction Wheel
- IMU
- GPS
- Processor (CPU)
- Magnetic Torque Rod (MTR)
- Sun Sensor (SS)
- Solar Panel String
- Many of the elements used in the cosmosstruc are defined here.
1.8.11 
