Computer Command System
E49820
The Computer Command System is one of Voyager 2’s primary onboard computers, responsible for interpreting and executing commands sent from Earth to control the spacecraft’s operations.
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Voyager subsystem
→
spacecraft onboard computer → |
| alsoPartOf | Voyager 1 → |
| architecture |
custom hardwired logic
→
Harvard architecture →
surface form:
non–von Neumann architecture
|
| associatedWith | Jet Propulsion Laboratory → |
| belongsToCategory | spacecraft command and data handling systems → |
| commandInputFormat | encoded digital command words → |
| commandOutput | control signals to subsystems → |
| controls |
attitude control sequences
→
data handling sequences → instrument operations → spacecraft operations → |
| criticalRole |
executing fault protection routines
→
maintaining spacecraft health and safety → |
| designedFor |
high reliability
→
long-duration missions → |
| designedIn | 1970s → |
| developedForMission | Voyager program → |
| environment | deep space → |
| governs |
scheduling of observations
→
timing of spacecraft activities → |
| implements |
command decoding
→
command distribution to subsystems → command validation → |
| interfaceWith |
Attitude and Articulation Control Subsystem computer
→
surface form:
Attitude and Articulation Control Subsystem
Flight Data Subsystem → science instruments → |
| latencyConsideration | accounts for long one-way light time from Earth → |
| location | Voyager 2 spacecraft bus → |
| mission | Voyager 2 → |
| missionPhase |
interstellar mission phase
→
planetary flybys → |
| operatedBy | NASA → |
| operationalMode |
autonomous execution of stored sequences
→
ground-commanded real-time mode → |
| operationalStatus | still operating on Voyager 2 as of 2024 → |
| partOf | Voyager 2 → |
| powerSource | spacecraft electrical power system → |
| primaryFunction |
execute spacecraft commands
→
interpret commands from Earth → |
| programStorage | read-only memory → |
| receivesCommandsFrom | Deep Space Network → |
| supports |
real-time command execution
→
stored command sequences → |
| technologyType | radiation-hardened digital computer → |
| usedOn |
Voyager 1
→
Voyager 2 → |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.