Milstar communications satellites
E837380
Milstar communications satellites are a constellation of secure, jam-resistant U.S. military spacecraft designed to provide survivable, global, low-data-rate communications for strategic and tactical forces.
All labels observed (6)
| Label | Occurrences |
|---|---|
| Milstar | 1 |
| Milstar Block I satellites | 1 |
| Milstar Block II satellites | 1 |
| Milstar II satellites | 1 |
| Milstar communications satellites canonical | 1 |
| Milstar satellite constellation | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10038202 — 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: Milstar communications satellites Context triple: [Inertial Upper Stage, usedOnMission, Milstar communications satellites]
-
A.
MUOS military communications satellites
MUOS military communications satellites are a U.S. Navy narrowband tactical satellite communications system designed to provide secure, smartphone-like voice and data connectivity to mobile military forces worldwide.
-
B.
AEHF military communications satellites
The AEHF military communications satellites are a constellation of secure, jam-resistant U.S. Air Force spacecraft that provide global, survivable, high-capacity communications for military forces and national leaders.
-
C.
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.
-
D.
Iridium satellite system
The Iridium satellite system is a global network of low Earth orbit communication satellites that provides worldwide voice and data coverage, including for remote sensing platforms like Argo floats.
-
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: Milstar communications satellites Target entity description: Milstar communications satellites are a constellation of secure, jam-resistant U.S. military spacecraft designed to provide survivable, global, low-data-rate communications for strategic and tactical forces.
-
A.
MUOS military communications satellites
MUOS military communications satellites are a U.S. Navy narrowband tactical satellite communications system designed to provide secure, smartphone-like voice and data connectivity to mobile military forces worldwide.
-
B.
AEHF military communications satellites
The AEHF military communications satellites are a constellation of secure, jam-resistant U.S. Air Force spacecraft that provide global, survivable, high-capacity communications for military forces and national leaders.
-
C.
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.
-
D.
Iridium satellite system
The Iridium satellite system is a global network of low Earth orbit communication satellites that provides worldwide voice and data coverage, including for remote sensing platforms like Argo floats.
-
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 (47)
| Predicate | Object |
|---|---|
| instanceOf | military communications satellite constellation ⓘ |
| alsoKnownAs |
Military Strategic and Tactical Relay system
ⓘ
Milstar constellation ⓘ |
| countryOfOrigin |
United States
ⓘ
linked to:
United States of America
|
| designedFor |
anti-jam performance
ⓘ
low probability of intercept communications ⓘ resistance to scintillation and nuclear effects ⓘ |
| developedBy |
Lockheed Martin
ⓘ
TRW ⓘ |
| developedFor |
United States Department of Defense
ⓘ
linked to:
Department of Defense
|
| firstLaunchDate | 1994-02-07 ⓘ |
| frequencyBand |
EHF band
ⓘ
SHF band ⓘ |
| groundSegment | Milstar ground terminals ⓘ |
| hasCapability |
crosslink communications between satellites
ⓘ
global coverage ⓘ jam-resistant communications ⓘ low data rate communications ⓘ nuclear-survivable communications ⓘ secure communications ⓘ survivable communications ⓘ |
| hasPart |
Milstar Block I satellites
ⓘ
linked to:
Milstar communications satellites
Milstar Block II satellites ⓘ
linked to:
Milstar communications satellites
|
| lastLaunchDate | 2003-04-08 ⓘ |
| launchVehicle |
Titan IV rocket
ⓘ
linked to:
Titan IV launch vehicle
|
| numberOfOperationalSatellites | 5 ⓘ |
| numberOfSatellitesLaunched | 6 ⓘ |
| operator |
United States Air Force
ⓘ
United States Space Force ⓘ |
| orbitType | geosynchronous orbit ⓘ |
| partOf | U.S. military satellite communications architecture ⓘ |
| purpose |
provide command and control communications
ⓘ
support strategic military forces ⓘ support tactical military forces ⓘ |
| replacedBy |
Advanced Extremely High Frequency satellite system
ⓘ
linked to:
AEHF military communications satellites
|
| status | operational but being phased out ⓘ |
| successor |
AEHF constellation
ⓘ
linked to:
AEHF military communications satellites
|
| supportsService |
data communications
ⓘ
imagery dissemination ⓘ teletype communications ⓘ voice communications ⓘ |
| user |
National Command Authority of the United States
ⓘ
linked to:
National Command Authority
U.S. nuclear forces ⓘ U.S. strategic forces ⓘ
linked to:
United States nuclear triad
U.S. tactical forces ⓘ |
| uses |
extremely high frequency communications
ⓘ
super high frequency communications ⓘ |
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: Milstar communications satellites Description of subject: Milstar communications satellites are a constellation of secure, jam-resistant U.S. military spacecraft designed to provide survivable, global, low-data-rate communications for strategic and tactical forces.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Milstar communications satellites
linked to: Milstar communications satellites
linked to: Milstar communications satellites
linked to: Milstar communications satellites
linked to: Milstar communications satellites