Space Shuttle electrical power system
E822837
The Space Shuttle electrical power system was the orbiter’s integrated network of fuel cells, distribution buses, and control equipment that generated and supplied electricity to all onboard systems and payloads.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Space Shuttle electrical power system canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9808102 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Space Shuttle electrical power system Context triple: [Shuttle Remote Manipulator System, powerSource, Space Shuttle electrical power system]
-
A.
Space Shuttle thermal protection system
The Space Shuttle thermal protection system was a complex arrangement of heat-resistant tiles, blankets, and reinforced carbon-carbon designed to shield the orbiter from the extreme temperatures of atmospheric reentry.
-
B.
Space Shuttle Main Engines
The Space Shuttle Main Engines were highly efficient, reusable liquid-fuel rocket engines that powered NASA’s Space Shuttle orbiters during launch and ascent into space.
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C.
TRW spacecraft bus
The TRW spacecraft bus is a satellite platform developed by TRW that provides the structural support, power, propulsion, and control systems for space observatories and other spacecraft.
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D.
Hubble Space Telescope Power Control Unit
The Hubble Space Telescope Power Control Unit is a critical subsystem that distributes and regulates electrical power for all of Hubble’s instruments and systems, ensuring stable and reliable operation in orbit.
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E.
Orbital Maneuvering System
The Orbital Maneuvering System was the Space Shuttle’s pair of rear-mounted rocket engines used for orbital insertion, adjustment, and deorbit burns.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Space Shuttle electrical power system Target entity description: The Space Shuttle electrical power system was the orbiter’s integrated network of fuel cells, distribution buses, and control equipment that generated and supplied electricity to all onboard systems and payloads.
-
A.
Space Shuttle thermal protection system
The Space Shuttle thermal protection system was a complex arrangement of heat-resistant tiles, blankets, and reinforced carbon-carbon designed to shield the orbiter from the extreme temperatures of atmospheric reentry.
-
B.
Space Shuttle Main Engines
The Space Shuttle Main Engines were highly efficient, reusable liquid-fuel rocket engines that powered NASA’s Space Shuttle orbiters during launch and ascent into space.
-
C.
TRW spacecraft bus
The TRW spacecraft bus is a satellite platform developed by TRW that provides the structural support, power, propulsion, and control systems for space observatories and other spacecraft.
-
D.
Hubble Space Telescope Power Control Unit
The Hubble Space Telescope Power Control Unit is a critical subsystem that distributes and regulates electrical power for all of Hubble’s instruments and systems, ensuring stable and reliable operation in orbit.
-
E.
Orbital Maneuvering System
The Orbital Maneuvering System was the Space Shuttle’s pair of rear-mounted rocket engines used for orbital insertion, adjustment, and deorbit burns.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
spacecraft electrical power system
ⓘ
subsystem of Space Shuttle orbiter ⓘ |
| byproduct | water ⓘ |
| controlledBy | General Purpose Computers ⓘ |
| controlledFrom |
aft flight deck panels
ⓘ
mission control center ⓘ |
| countryOfOrigin |
United States
ⓘ
linked to:
United States of America
|
| designGoal |
fault tolerance
ⓘ
high reliability ⓘ redundancy ⓘ |
| distributionArchitecture | multiple main DC buses ⓘ |
| fuelCellManufacturer | Pratt & Whitney ⓘ |
| fuelCellType | alkaline hydrogen-oxygen fuel cell ⓘ |
| hasComponent |
battery system
ⓘ
bus switching units ⓘ essential buses ⓘ fuel cell powerplants ⓘ inverters ⓘ main DC buses ⓘ power control electronics ⓘ remote power controllers ⓘ transformer-rectifier units ⓘ |
| missionPhase |
landing
ⓘ
launch ⓘ on-orbit operations ⓘ reentry ⓘ |
| nominalVoltageLevel | 28 V DC ⓘ |
| numberOfFuelCells | 3 ⓘ |
| operator | NASA ⓘ |
| partOf | Space Shuttle orbiter ⓘ |
| primaryPowerSource | alkaline fuel cell ⓘ |
| program |
Space Shuttle program
ⓘ
linked to:
NASA Space Shuttle program
|
| provides |
electrical power to orbiter systems
ⓘ
electrical power to payloads ⓘ potable water for crew ⓘ |
| providesRedundancy | triple fuel cell configuration ⓘ |
| reactant |
liquid hydrogen
ⓘ
liquid oxygen ⓘ |
| supportsSubsystem |
communications and tracking system
ⓘ
environmental control and life support system ⓘ guidance navigation and control system ⓘ orbital maneuvering system ⓘ payload bay experiments ⓘ reaction control system ⓘ |
| usedOnVehicle |
Space Shuttle Atlantis
ⓘ
Space Shuttle Challenger ⓘ Space Shuttle Columbia ⓘ Space Shuttle Discovery ⓘ Space Shuttle Endeavour ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Space Shuttle electrical power system Description of subject: The Space Shuttle electrical power system was the orbiter’s integrated network of fuel cells, distribution buses, and control equipment that generated and supplied electricity to all onboard systems and payloads.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.