Telstar 3C communications satellite
E484455
Telstar 3C was a commercial communications satellite launched in 1984 to provide telecommunications services, including television and data transmission, primarily over North America.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Telstar 3 series | 1 |
| Telstar 3C | 1 |
| Telstar 3C communications satellite canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4967391 — 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: Telstar 3C communications satellite Context triple: [STS-41-D, payload, Telstar 3C communications satellite]
-
A.
ANIK C2 communications satellite
ANIK C2 is a Canadian commercial communications satellite used to provide telecommunications and broadcasting services.
-
B.
SBS-4 communications satellite
The SBS-4 communications satellite was a commercial telecommunications spacecraft operated by Satellite Business Systems to provide business-oriented communication services in North America.
-
C.
PALAPA B1 communications satellite
PALAPA B1 was an Indonesian communications satellite launched in the early 1980s to expand the country's domestic and regional telecommunications capabilities.
-
D.
Alouette satellites
The Alouette satellites were pioneering Canadian scientific spacecraft launched in the 1960s to study the ionosphere, marking Canada as one of the first nations to design and build its own satellite.
-
E.
Hughes Syncom communications satellites
The Hughes Syncom communications satellites were pioneering early geosynchronous communications satellites developed by Hughes Aircraft Company that helped demonstrate and establish the feasibility of global satellite communications.
- 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: Telstar 3C communications satellite Target entity description: Telstar 3C was a commercial communications satellite launched in 1984 to provide telecommunications services, including television and data transmission, primarily over North America.
-
A.
ANIK C2 communications satellite
ANIK C2 is a Canadian commercial communications satellite used to provide telecommunications and broadcasting services.
-
B.
SBS-4 communications satellite
The SBS-4 communications satellite was a commercial telecommunications spacecraft operated by Satellite Business Systems to provide business-oriented communication services in North America.
-
C.
PALAPA B1 communications satellite
PALAPA B1 was an Indonesian communications satellite launched in the early 1980s to expand the country's domestic and regional telecommunications capabilities.
-
D.
Alouette satellites
The Alouette satellites were pioneering Canadian scientific spacecraft launched in the 1960s to study the ionosphere, marking Canada as one of the first nations to design and build its own satellite.
-
E.
Hughes Syncom communications satellites
The Hughes Syncom communications satellites were pioneering early geosynchronous communications satellites developed by Hughes Aircraft Company that helped demonstrate and establish the feasibility of global satellite communications.
- F. None of above. chosen
Statements (37)
| Predicate | Object |
|---|---|
| instanceOf |
artificial satellite
ⓘ
commercial communications satellite ⓘ communications satellite ⓘ |
| commercialUse | yes ⓘ |
| countryOfOperator |
United States
ⓘ
linked to:
United States of America
|
| followedBy | Telstar 401 ⓘ |
| hasTransponders | yes ⓘ |
| launchCountry |
United States
ⓘ
linked to:
United States of America
|
| launchDate | 1984 ⓘ |
| launchMass | approximately 650 kilograms ⓘ |
| launchSite |
Cape Canaveral
ⓘ
Cape Canaveral Air Force Station ⓘ
linked to:
Cape Canaveral Space Force Station
|
| launchVehicle | Delta 3920 ⓘ |
| manufacturer | Hughes Aircraft Company ⓘ |
| missionType |
data transmission
ⓘ
telecommunications ⓘ television transmission ⓘ |
| operator | AT&T ⓘ |
| orbitRegime | geosynchronous ⓘ |
| orbitType | geostationary orbit ⓘ |
| ownedBy | AT&T ⓘ |
| partOfSeries |
Telstar 3 series
ⓘ
linked to:
Telstar 3C communications satellite
|
| powerSource | solar panels ⓘ |
| precededBy | Telstar 3B ⓘ |
| primaryCoverageArea | North America ⓘ |
| purpose |
provide data transmission services
ⓘ
provide telecommunications services ⓘ provide television services ⓘ |
| serviceRegion |
Canada
ⓘ
United States ⓘ
linked to:
United States of America
|
| serviceType | fixed-satellite service ⓘ |
| spacecraftBus | HS-376 ⓘ |
| usedFor |
data communications
ⓘ
long-distance telephone traffic ⓘ television distribution ⓘ |
| usesFrequencyBand |
C-band
ⓘ
Ku-band ⓘ |
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: Telstar 3C communications satellite Description of subject: Telstar 3C was a commercial communications satellite launched in 1984 to provide telecommunications services, including television and data transmission, primarily over North America.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Telstar 3C communications satellite
linked to: Telstar 3C communications satellite
linked to: Telstar 3C communications satellite