Zefiro 9
E398731
Zefiro 9 is a solid-propellant upper-stage rocket motor used as the third stage of the European Vega small-lift launch vehicle.
All labels observed (2)
How this entity was disambiguated
This entity first appeared as the object of triple T3894386 — 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: Zefiro 9 Context triple: [Vega launch vehicle programme, thirdStage, Zefiro 9]
-
A.
Zefiro 23
Zefiro 23 is a solid-propellant second-stage rocket motor used in the European Vega small-lift launch vehicle.
-
B.
Jenefar
Jenefar is an alternative spelling of the given name Jennifer, typically used as a feminine first name.
-
C.
Rococo Zephyr
"Rococo Zephyr" is a song by American singer-songwriter Bill Callahan from his album "Sometimes I Wish We Were an Eagle."
-
D.
Zenta
Zenta is a historic town in northern Serbia, best known as the site of a decisive 1697 battle between the Habsburg Monarchy and the Ottoman Empire.
-
E.
Turbostar
Turbostar is a family of modern British diesel multiple-unit trains widely used for regional and commuter services across the UK rail network.
- 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: Zefiro 9 Target entity description: Zefiro 9 is a solid-propellant upper-stage rocket motor used as the third stage of the European Vega small-lift launch vehicle.
-
A.
Zefiro 23
Zefiro 23 is a solid-propellant second-stage rocket motor used in the European Vega small-lift launch vehicle.
-
B.
Jenefar
Jenefar is an alternative spelling of the given name Jennifer, typically used as a feminine first name.
-
C.
Rococo Zephyr
"Rococo Zephyr" is a song by American singer-songwriter Bill Callahan from his album "Sometimes I Wish We Were an Eagle."
-
D.
Zenta
Zenta is a historic town in northern Serbia, best known as the site of a decisive 1697 battle between the Habsburg Monarchy and the Ottoman Empire.
-
E.
Turbostar
Turbostar is a family of modern British diesel multiple-unit trains widely used for regional and commuter services across the UK rail network.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
rocket engine
ⓘ
solid rocket motor ⓘ upper stage rocket motor ⓘ |
| application | upper stage of small-lift launch vehicle ⓘ |
| burnProfile | progressive-regressive ⓘ |
| burnTime | about 110 seconds ⓘ |
| configuration | single-segment solid motor ⓘ |
| countryOfLaunchSite | French Guiana ⓘ |
| countryOfOrigin | Italy ⓘ |
| designFamily |
Zefiro family of solid rocket motors
ⓘ
linked to:
Zefiro rocket motor family
|
| diameter | about 1.9 metres ⓘ |
| firstFlightDate | 13 February 2012 ⓘ |
| firstFlightVehicle | Vega VV01 ⓘ |
| fuel | HTPB ⓘ |
| guidance | thrust vector control via movable nozzle ⓘ |
| insulation | internal thermal insulation liner ⓘ |
| launchSiteUser | Guiana Space Centre ⓘ |
| launchVehicleFamily |
Vega launch vehicle
ⓘ
linked to:
Vega launch vehicle programme
|
| length | about 3.5 metres ⓘ |
| manufacturer |
Avio
ⓘ
linked to:
Avio S.p.A.
|
| missionPhase |
post-second-stage ascent
ⓘ
pre-AVUM operations ⓘ |
| nozzleType | flexible-joint nozzle ⓘ |
| operator | Arianespace ⓘ |
| oxidizer | ammonium perchlorate ⓘ |
| predecessor | Zefiro 16 test motor ⓘ |
| primaryUser | European Space Agency ⓘ |
| program |
Vega programme
ⓘ
linked to:
Vega launch vehicle programme
|
| propellantMass |
about 9.7 tonnes
ⓘ
approximately 10 tonnes ⓘ |
| propellantType | solid propellant ⓘ |
| role |
orbit insertion
ⓘ
trajectory shaping ⓘ |
| spaceAgencyUser |
Arianespace
ⓘ
European Space Agency ⓘ |
| stageNumber | third stage ⓘ |
| status | operational ⓘ |
| structureMaterial | carbon-epoxy composite case ⓘ |
| successorVariant |
Zefiro 9A
ⓘ
linked to:
Zefiro 9
|
| thrustEnvironment | vacuum ⓘ |
| usedFor |
launching payloads to Sun-synchronous orbit
ⓘ
launching small to medium payloads to low Earth orbit ⓘ |
| usedOnVehicle |
Vega
ⓘ
Vega-C ⓘ
linked to:
Vega launch vehicle programme
|
| vacuumThrust | approximately 313 kN ⓘ |
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: Zefiro 9 Description of subject: Zefiro 9 is a solid-propellant upper-stage rocket motor used as the third stage of the European Vega small-lift launch vehicle.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Zefiro 9