SS-520 sounding rocket
E440076
The SS-520 is a Japanese solid-fuel sounding rocket developed by JAXA, notable for being one of the smallest rockets ever used to place a satellite into orbit.
All labels observed (1)
| Label | Occurrences |
|---|---|
| SS-520 sounding rocket canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4431566 — 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: SS-520 sounding rocket Context triple: [Uchinoura Space Center, launchesFromHere, SS-520 sounding rocket]
-
A.
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.
-
B.
M-V rocket
The M-V rocket was a Japanese solid-fuel launch vehicle developed by JAXA (and its predecessors) primarily for launching scientific satellites and space probes, including deep-space missions like Hayabusa.
-
C.
R-1 rocket
The R-1 rocket was an early Soviet ballistic missile and research rocket developed after World War II as a near-copy of Germany’s V-2, serving as a foundation for later Soviet rocketry.
-
D.
Epsilon launch vehicle
The Epsilon launch vehicle is a Japanese solid-fuel rocket designed for cost-effective, small satellite launches into orbit.
-
E.
Redstone rocket
The Redstone rocket was an early American ballistic missile adapted by NASA as a reliable launch vehicle for the first crewed Mercury spaceflights.
- 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: SS-520 sounding rocket Target entity description: The SS-520 is a Japanese solid-fuel sounding rocket developed by JAXA, notable for being one of the smallest rockets ever used to place a satellite into orbit.
-
A.
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.
-
B.
M-V rocket
The M-V rocket was a Japanese solid-fuel launch vehicle developed by JAXA (and its predecessors) primarily for launching scientific satellites and space probes, including deep-space missions like Hayabusa.
-
C.
R-1 rocket
The R-1 rocket was an early Soviet ballistic missile and research rocket developed after World War II as a near-copy of Germany’s V-2, serving as a foundation for later Soviet rocketry.
-
D.
Epsilon launch vehicle
The Epsilon launch vehicle is a Japanese solid-fuel rocket designed for cost-effective, small satellite launches into orbit.
-
E.
Redstone rocket
The Redstone rocket was an early American ballistic missile adapted by NASA as a reliable launch vehicle for the first crewed Mercury spaceflights.
- F. None of above. chosen
Statements (34)
| Predicate | Object |
|---|---|
| instanceOf |
launch vehicle
ⓘ
orbital launch vehicle ⓘ solid-fuel rocket ⓘ sounding rocket ⓘ |
| basedOn | SS-520 NERFINISHED ⓘ |
| countryOfOrigin | Japan ⓘ |
| developer | JAXA NERFINISHED ⓘ |
| family | SS rocket family ⓘ |
| fuelType | solid propellant ⓘ |
| launchAgency | JAXA NERFINISHED ⓘ |
| launchConfiguration |
SS-520-1
NERFINISHED
ⓘ
SS-520-2 NERFINISHED ⓘ SS-520-3 NERFINISHED ⓘ |
| launchDate | 2018-02-03 ⓘ |
| launchesFrom | Uchinoura Space Center NERFINISHED ⓘ |
| launchSite | Uchinoura Space Center NERFINISHED ⓘ |
| manufacturer | JAXA NERFINISHED ⓘ |
| missionType | technology demonstration ⓘ |
| notableFor |
being one of the smallest rockets to place a satellite into orbit
ⓘ
low-cost access to space for small payloads ⓘ placing a satellite into orbit as one of the smallest orbital rockets ⓘ |
| operator | JAXA NERFINISHED ⓘ |
| orbitType | Earth orbit ⓘ |
| payload | TRICOM-1R NERFINISHED ⓘ |
| propulsionType | solid fuel ⓘ |
| purpose |
orbital launch missions
ⓘ
sounding rocket missions ⓘ |
| spaceAgency | Japan Aerospace Exploration Agency NERFINISHED ⓘ |
| stageCount |
2
ⓘ
3 ⓘ |
| status | operational ⓘ |
| technologyType | small launch vehicle ⓘ |
| usedFor |
micro-satellite launches
ⓘ
scientific experiments in the upper atmosphere ⓘ |
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: SS-520 sounding rocket Description of subject: The SS-520 is a Japanese solid-fuel sounding rocket developed by JAXA, notable for being one of the smallest rockets ever used to place a satellite into orbit.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.