Voyager 1 electrical power subsystem
E870144
The Voyager 1 electrical power subsystem is the spacecraft’s radioisotope thermoelectric generator–based system that supplies and manages electrical power for all onboard instruments and systems throughout its deep-space mission.
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
spacecraft electrical power subsystem
ⓘ
spacecraft subsystem ⓘ |
| cannotUse | solar arrays ⓘ |
| designedFor |
autonomous operation
ⓘ
deep-space mission ⓘ high reliability ⓘ long-duration operation ⓘ redundancy ⓘ |
| developedBy |
Jet Propulsion Laboratory
NERFINISHED
ⓘ
NASA NERFINISHED ⓘ |
| environment |
deep space
ⓘ
interstellar space ⓘ |
| exceededDesignLifetime | true ⓘ |
| hasComponent |
RTG power conversion units
ⓘ
battery (for transient loads only) ⓘ cabling and harnesses ⓘ fuses and circuit protection devices ⓘ load switching circuitry ⓘ power control electronics ⓘ power distribution unit ⓘ voltage regulation circuitry ⓘ |
| initialElectricalPowerOutput | approximately 470 watts at launch ⓘ |
| initialNumberOfRTGs | 3 ⓘ |
| launchDate | 1977-09-05 ⓘ |
| lifetimeDesignGoal | at least 5 years ⓘ |
| managesPowerFor |
Voyager 1 attitude control system
NERFINISHED
ⓘ
Voyager 1 communication system ⓘ Voyager 1 data handling system ⓘ Voyager 1 science instruments NERFINISHED ⓘ Voyager 1 thermal control system ⓘ |
| mission |
Voyager 1 interstellar mission
NERFINISHED
ⓘ
Voyager program NERFINISHED ⓘ |
| mustOperateAt | large heliocentric distances ⓘ |
| partOf | Voyager 1 NERFINISHED ⓘ |
| poweredBy |
Pu-238 radioisotope fuel
ⓘ
plutonium-238 ⓘ |
| powerOutputDecreasesDueTo |
radioactive decay of Pu-238
ⓘ
thermocouple degradation ⓘ |
| providesPowerTo |
attitude thruster valves
ⓘ
heaters for thermal control ⓘ onboard computers ⓘ radio receivers ⓘ radio transmitters ⓘ |
| reasonForRTGUse | insufficient solar flux at outer planets and beyond ⓘ |
| stillOperationalAsOf | 2024 ⓘ |
| supports |
load shedding strategies
ⓘ
power margin management ⓘ selective instrument shutdown to conserve power ⓘ |
| uses |
RTG
NERFINISHED
ⓘ
radioisotope thermoelectric generators ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.