Hubble Space Telescope solar arrays
E261934
The Hubble Space Telescope solar arrays are large, wing-like photovoltaic panels that provide electrical power to the Hubble observatory while in Earth orbit.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Hubble Space Telescope solar arrays canonical | 1 |
| Hubble solar array drive electronics | 1 |
| Hubble solar arrays | 1 |
| Solar Array Drive Mechanism sensors | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2389183 — 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: Hubble Space Telescope solar arrays Context triple: [STS-109, componentReplaced, Hubble Space Telescope solar arrays]
-
A.
Hubble Space Telescope Fine Guidance Sensors
The Hubble Space Telescope Fine Guidance Sensors are high-precision optical instruments that both keep Hubble accurately pointed at astronomical targets and serve as scientific tools for measuring stellar positions and distances.
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B.
Hubble Space Telescope data electronics
Hubble Space Telescope data electronics are the onboard systems responsible for processing, storing, and transmitting the telescope’s scientific observations and operational data back to Earth.
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C.
Fine Guidance Sensor
The Fine Guidance Sensor is a high-precision pointing and stabilization instrument on the James Webb Space Telescope that locks onto guide stars to keep the observatory accurately aimed during observations.
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D.
Hubble Space Telescope Servicing Mission 3A
Hubble Space Telescope Servicing Mission 3A was a 1999 Space Shuttle mission that repaired and upgraded the Hubble Space Telescope to restore its scientific capabilities.
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E.
Corrective Optics Space Telescope Axial Replacement (COSTAR)
Corrective Optics Space Telescope Axial Replacement (COSTAR) was a set of corrective mirrors installed on the Hubble Space Telescope to compensate for its flawed primary mirror and restore its intended imaging performance.
- 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: Hubble Space Telescope solar arrays Target entity description: The Hubble Space Telescope solar arrays are large, wing-like photovoltaic panels that provide electrical power to the Hubble observatory while in Earth orbit.
-
A.
Hubble Space Telescope Fine Guidance Sensors
The Hubble Space Telescope Fine Guidance Sensors are high-precision optical instruments that both keep Hubble accurately pointed at astronomical targets and serve as scientific tools for measuring stellar positions and distances.
-
B.
Hubble Space Telescope data electronics
Hubble Space Telescope data electronics are the onboard systems responsible for processing, storing, and transmitting the telescope’s scientific observations and operational data back to Earth.
-
C.
Fine Guidance Sensor
The Fine Guidance Sensor is a high-precision pointing and stabilization instrument on the James Webb Space Telescope that locks onto guide stars to keep the observatory accurately aimed during observations.
-
D.
Hubble Space Telescope Servicing Mission 3A
Hubble Space Telescope Servicing Mission 3A was a 1999 Space Shuttle mission that repaired and upgraded the Hubble Space Telescope to restore its scientific capabilities.
-
E.
Corrective Optics Space Telescope Axial Replacement (COSTAR)
Corrective Optics Space Telescope Axial Replacement (COSTAR) was a set of corrective mirrors installed on the Hubble Space Telescope to compensate for its flawed primary mirror and restore its intended imaging performance.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
photovoltaic power system
ⓘ
spacecraft solar array ⓘ |
| associatedWith |
Hubble Space Telescope servicing mission
ⓘ
surface form:
Hubble Space Telescope servicing missions
|
| connectedTo | Hubble Space Telescope power distribution system ⓘ |
| convert | sunlight to electricity ⓘ |
| designedFor | Sun-synchronous pointing relative to spacecraft attitude ⓘ |
| designedTo |
minimize pointing disturbances
ⓘ
operate for many years in space environment ⓘ |
| enable |
battery charging for orbital night operations
ⓘ
continuous operation of Hubble instruments during orbital day ⓘ |
| environmentalExposure |
micrometeoroids
ⓘ
space radiation ⓘ thermal cycling ⓘ vacuum ⓘ |
| experiencedIssue |
jitter due to flexing in and out of Earth’s shadow
ⓘ
structural oscillations affecting pointing stability ⓘ |
| finalServicingMission |
STS-125
ⓘ
surface form:
STS-125 (Servicing Mission 4, 2009)
|
| firstInstalled | 1990 ⓘ |
| firstReplacementMission |
STS-61
ⓘ
surface form:
STS-61 (Servicing Mission 1, 1993)
|
| internationalContribution |
European Space Agency
ⓘ
surface form:
European Space Agency (original arrays)
|
| launchedWith |
STS-31
ⓘ
surface form:
Space Shuttle Discovery STS-31
|
| locatedOn | exterior of Hubble Space Telescope ⓘ |
| material |
more radiation-resistant solar cells (later arrays)
ⓘ
silicon solar cells (original arrays) ⓘ |
| missionRole | primary power source for Hubble Space Telescope ⓘ |
| mounting | two opposite wings on telescope body ⓘ |
| numberOfWings | 2 ⓘ |
| operateIn | low Earth orbit ⓘ |
| operator | NASA ⓘ |
| orbitingBody | Earth ⓘ |
| orientation | deployable panels ⓘ |
| originalDesignBy | European Space Agency ⓘ |
| originalType | flexible roll-out solar array ⓘ |
| partOf | Hubble Space Telescope ⓘ |
| powerOutput |
approximately 2,400 watts at end of life (post-SM4 configuration)
ⓘ
approximately 4,500 watts at launch (original arrays, beginning of life) ⓘ approximately 4,800 watts at beginning of life (post-SM4 configuration) ⓘ |
| provide | electrical power ⓘ |
| replacedBy |
rigid, smaller, more efficient solar arrays in 1993
ⓘ
third-generation solar arrays in 2002 ⓘ |
| secondReplacementMission |
STS-109
ⓘ
surface form:
STS-109 (Servicing Mission 3B, 2002)
|
| shape | wing-like ⓘ |
| status | operational (as of mid-2020s) ⓘ |
| storeEnergyVia | spacecraft batteries ⓘ |
| supplyPowerTo |
Hubble Space Telescope science instruments
ⓘ
surface form:
Hubble Space Telescope scientific instruments
Hubble Space Telescope support systems ⓘ |
| trackingCapability | Sun-tracking ⓘ |
| use | photovoltaic cells ⓘ |
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: Hubble Space Telescope solar arrays Description of subject: The Hubble Space Telescope solar arrays are large, wing-like photovoltaic panels that provide electrical power to the Hubble observatory while in Earth orbit.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Solar Array Drive Mechanism sensors
this entity surface form:
Hubble solar array drive electronics
Hubble Space Telescope Servicing Mission 3B
→
replacedComponent
→
Hubble Space Telescope solar arrays
ⓘ
this entity surface form:
Hubble solar arrays