NROL-71
E846508
NROL-71 is a classified U.S. National Reconnaissance Office satellite mission, believed to be an advanced spy satellite launched for intelligence-gathering purposes.
All labels observed (1)
| Label | Occurrences |
|---|---|
| NROL-71 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10183729 — 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: NROL-71 Context triple: [Delta IV Heavy, notableMission, NROL-71]
-
A.
Mobile Launcher-1
Mobile Launcher-1 was a NASA launch platform and service structure used during the Apollo and early Skylab programs to support Saturn V and Saturn IB rocket launches from Kennedy Space Center.
-
B.
KSLV-I
KSLV-I is South Korea’s first domestically developed space launch vehicle, used to place satellites into low Earth orbit and mark the country’s entry into orbital launch capability.
-
C.
KSLV-II
KSLV-II is South Korea’s next-generation, domestically developed orbital launch vehicle designed to place satellites into low Earth orbit and advance the nation’s independent space launch capabilities.
-
D.
Vanguard rocket
The Vanguard rocket was an early American expendable launch vehicle developed in the 1950s to place the first U.S. satellites into orbit during the early years of the Space Race.
-
E.
Sapphire (satellite)
Sapphire is a Canadian military surveillance satellite designed to track space objects and contribute to space situational awareness.
- 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: NROL-71 Target entity description: NROL-71 is a classified U.S. National Reconnaissance Office satellite mission, believed to be an advanced spy satellite launched for intelligence-gathering purposes.
-
A.
Mobile Launcher-1
Mobile Launcher-1 was a NASA launch platform and service structure used during the Apollo and early Skylab programs to support Saturn V and Saturn IB rocket launches from Kennedy Space Center.
-
B.
KSLV-I
KSLV-I is South Korea’s first domestically developed space launch vehicle, used to place satellites into low Earth orbit and mark the country’s entry into orbital launch capability.
-
C.
KSLV-II
KSLV-II is South Korea’s next-generation, domestically developed orbital launch vehicle designed to place satellites into low Earth orbit and advance the nation’s independent space launch capabilities.
-
D.
Vanguard rocket
The Vanguard rocket was an early American expendable launch vehicle developed in the 1950s to place the first U.S. satellites into orbit during the early years of the Space Race.
-
E.
Sapphire (satellite)
Sapphire is a Canadian military surveillance satellite designed to track space objects and contribute to space situational awareness.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
National Reconnaissance Office mission
ⓘ
reconnaissance satellite mission ⓘ |
| agencyAbbreviation | NRO NERFINISHED ⓘ |
| associatedProgram | KH-11 successor (unconfirmed) ⓘ |
| belongsTo | U.S. intelligence community NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| customerAgency | National Reconnaissance Office NERFINISHED ⓘ |
| firstLaunchAttemptDate | 2018-12-08 ⓘ |
| firstLaunchAttemptStatus | scrubbed GENERATED ⓘ |
| hasLaunchPatch | yes ⓘ |
| isClassified | true ⓘ |
| isMilitary | true ⓘ |
| isPartOf | NRO launch manifest ⓘ |
| isSpySatelliteMission | true ⓘ |
| launchAttemptCount | 2 ⓘ |
| launchAzimuth | classified ⓘ |
| launchBase | Vandenberg Air Force Base NERFINISHED ⓘ |
| launchContractor | United Launch Alliance NERFINISHED ⓘ |
| launchCountry |
United States of America
ⓘ
surface form:
United States
|
| launchDate | 2019-01-19 ⓘ |
| launchMass | classified ⓘ |
| launchOutcome | success ⓘ |
| launchPatchTheme | classified symbolism ⓘ |
| launchProvider | United Launch Alliance NERFINISHED ⓘ |
| launchSite |
Space Launch Complex 6
NERFINISHED
ⓘ
Vandenberg Air Force Base NERFINISHED ⓘ |
| launchState | California NERFINISHED ⓘ |
| launchTimeUTC | 2019-01-19T19:10:00Z ⓘ |
| launchVehicle | Delta IV Heavy NERFINISHED ⓘ |
| launchVehicleConfiguration | Delta IV Heavy 382 NERFINISHED ⓘ |
| launchVehicleCoreCount | 3 ⓘ |
| launchVehicleFamily | Delta IV NERFINISHED ⓘ |
| launchVehicleManufacturer | United Launch Alliance NERFINISHED ⓘ |
| launchYear | 2019 ⓘ |
| missionDomain | space-based reconnaissance ⓘ |
| missionPurpose |
intelligence gathering
ⓘ
national security ⓘ |
| missionSecurityClassification | Top Secret (U.S.) ⓘ |
| missionType |
electro-optical reconnaissance
ⓘ
imagery intelligence ⓘ signals intelligence ⓘ |
| operator | National Reconnaissance Office NERFINISHED ⓘ |
| orbitInclination | classified ⓘ |
| orbitType | low Earth orbit ⓘ |
| payloadType | classified reconnaissance payload ⓘ |
| status | operational ⓘ |
| usesLaunchPad | SLC-6 NERFINISHED ⓘ |
| usesPropulsion | onboard orbit-adjustment system (unconfirmed) ⓘ |
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: NROL-71 Description of subject: NROL-71 is a classified U.S. National Reconnaissance Office satellite mission, believed to be an advanced spy satellite launched for intelligence-gathering purposes.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.