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Spacecraft Computer Systems

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Random Access Memory (RAM)

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RAM provides the memory space for the CPU to store and access data quickly while performing tasks.

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Guidance, Navigation, and Control (GNC)

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Responsible for determining the spacecraft's trajectory and position, and executing maneuvers to follow the desired path.

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Redundancy Management

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Involves using backup systems and components to prevent mission failure in case of a malfunction.

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Central Processing Unit (CPU)

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The CPU acts as the brain of the spacecraft's computer system, executing commands and processing data.

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Communication Systems

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Allow the spacecraft to communicate with ground stations, relaying commands, data, and status reports.

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On-Board Timekeeping Systems

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Provide precise timing necessary for navigation, communication, and scientific experiments.

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Data Storage

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Used to store software, data, and mission information that can be preserved between power cycles.

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Telemetry Systems

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Collect and transmit data on the health and performance of spacecraft systems to ground control.

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Electrical Power System (EPS)

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Manages the generation, storage, and distribution of electrical power from sources like solar panels and batteries.

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Command and Data Handling (C&DH)

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Handles the execution of commands to spacecraft subsystems and the collection and storage of operational data.

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Power Supply Unit (PSU)

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Converts electrical power from the solar panels or batteries to the correct voltage and current to run the spacecraft systems.

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Thermal Control System (TCS)

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Maintains the temperature of the computer systems within acceptable limits.

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Attitude and Orbit Control Systems (AOCS)

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Controls the spacecraft’s orientation and orbit path using various sensors and actuators.

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Flight Software

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The software that provides the instructions for all on-board systems to operate and interact.

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Robotics Control Systems

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Operate robotic arms or rovers, allowing for the manipulation of objects, collection of samples, or repairs.

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