Syncom IV-4 (Leasat-4) communications satellite
E1098695
UNEXPLORED
Syncom IV-4 (Leasat-4) was a U.S. Navy leased communications satellite designed to provide secure military communications from geosynchronous orbit.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Syncom IV-4 (Leasat-4) communications satellite canonical | 2 |
| Syncom IV-4 (Leasat-4) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T14418939 — 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: Syncom IV-4 (Leasat-4) communications satellite Context triple: [STS-51-I, primaryPayload, Syncom IV-4 (Leasat-4) communications satellite]
-
A.
Telstar 3C communications satellite
Telstar 3C was a commercial communications satellite launched in 1984 to provide telecommunications services, including television and data transmission, primarily over North America.
-
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.
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C.
SBS-3 communications satellite
The SBS-3 communications satellite was a commercial geostationary communications spacecraft operated by Satellite Business Systems to provide telecommunications services in the early 1980s.
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D.
ANIK C2 communications satellite
ANIK C2 is a Canadian commercial communications satellite used to provide telecommunications and broadcasting services.
-
E.
CBAS-1 military communications satellite
CBAS-1 is a classified U.S. military communications satellite designed to provide secure, high-capacity relay capabilities for defense and national security operations in geostationary orbit.
- 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: Syncom IV-4 (Leasat-4) communications satellite Target entity description: Syncom IV-4 (Leasat-4) was a U.S. Navy leased communications satellite designed to provide secure military communications from geosynchronous orbit.
-
A.
Telstar 3C communications satellite
Telstar 3C was a commercial communications satellite launched in 1984 to provide telecommunications services, including television and data transmission, primarily over North America.
-
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.
SBS-3 communications satellite
The SBS-3 communications satellite was a commercial geostationary communications spacecraft operated by Satellite Business Systems to provide telecommunications services in the early 1980s.
-
D.
ANIK C2 communications satellite
ANIK C2 is a Canadian commercial communications satellite used to provide telecommunications and broadcasting services.
-
E.
CBAS-1 military communications satellite
CBAS-1 is a classified U.S. military communications satellite designed to provide secure, high-capacity relay capabilities for defense and national security operations in geostationary orbit.
- F. None of above. chosen
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Space Shuttle mission STS-51-I
linked to: Syncom IV-4 (Leasat-4) communications satellite