Alcântara Launch Center
E468201
Alcântara Launch Center is a Brazilian spaceport in the state of Maranhão used for satellite launches, notable for its proximity to the equator which offers fuel-efficient orbital trajectories.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Alcântara Launch Center canonical | 7 |
| Centro de Lançamento de Alcântara | 2 |
| Alcântara Launch Center development | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4751496 — 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: Alcântara Launch Center Context triple: [Alcântara, hasNearbyFacility, Alcântara Launch Center]
-
A.
Barreira do Inferno Launch Center
Barreira do Inferno Launch Center is Brazil’s first rocket launch base, used primarily for sounding rocket missions and space research activities.
-
B.
Guiana Space Centre
The Guiana Space Centre is a major European spaceport located in French Guiana, used for launching a wide range of commercial and scientific missions including flagship observatories.
-
C.
Cape Canaveral Air Force Station Space Launch Complex 17B
Cape Canaveral Air Force Station Space Launch Complex 17B is a former U.S. launch pad on Florida’s Space Coast that historically supported numerous Delta rocket missions for NASA and the U.S. military.
-
D.
Cape Canaveral Air Force Station Space Launch Complex 17A
Cape Canaveral Air Force Station Space Launch Complex 17A is a historic launch pad at Cape Canaveral, Florida, long used for Delta rocket missions and various NASA scientific satellites.
-
E.
Launch Complex 39C
Launch Complex 39C is a small launch pad at NASA’s Kennedy Space Center designed to support launches of small-class commercial and government rockets.
- 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: Alcântara Launch Center Target entity description: Alcântara Launch Center is a Brazilian spaceport in the state of Maranhão used for satellite launches, notable for its proximity to the equator which offers fuel-efficient orbital trajectories.
-
A.
Barreira do Inferno Launch Center
Barreira do Inferno Launch Center is Brazil’s first rocket launch base, used primarily for sounding rocket missions and space research activities.
-
B.
Guiana Space Centre
The Guiana Space Centre is a major European spaceport located in French Guiana, used for launching a wide range of commercial and scientific missions including flagship observatories.
-
C.
Cape Canaveral Air Force Station Space Launch Complex 17B
Cape Canaveral Air Force Station Space Launch Complex 17B is a former U.S. launch pad on Florida’s Space Coast that historically supported numerous Delta rocket missions for NASA and the U.S. military.
-
D.
Cape Canaveral Air Force Station Space Launch Complex 17A
Cape Canaveral Air Force Station Space Launch Complex 17A is a historic launch pad at Cape Canaveral, Florida, long used for Delta rocket missions and various NASA scientific satellites.
-
E.
Launch Complex 39C
Launch Complex 39C is a small launch pad at NASA’s Kennedy Space Center designed to support launches of small-class commercial and government rockets.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
rocket launch site
ⓘ
spaceport ⓘ |
| 2003Accident | launch pad explosion during VLS-1 test ⓘ |
| 2003AccidentFatalities | 21 ⓘ |
| advantage |
fuel-efficient orbital trajectories
ⓘ
higher payload capacity to low-inclination orbits ⓘ reduced launch energy for equatorial orbits ⓘ |
| constructionStartDate | 1980s ⓘ |
| continent | South America ⓘ |
| country | Brazil ⓘ |
| distanceFromEquator | less than 250 kilometers ⓘ |
| environment | coastal tropical ⓘ |
| goal | commercial satellite launch services ⓘ |
| inaugurationDate | 1990 ⓘ |
| infrastructure |
integration buildings
ⓘ
launch pads ⓘ support and housing facilities ⓘ tracking and telemetry facilities ⓘ |
| internationalCooperation | agreements with foreign space agencies ⓘ |
| latitude | approximately 2.3 degrees south ⓘ |
| launchCapability |
equatorial orbits
ⓘ
geostationary transfer orbit potential ⓘ low Earth orbit ⓘ |
| launchPadCount | multiple ⓘ |
| launchPadType |
orbital launch pads
ⓘ
sounding rocket pads ⓘ |
| locatedIn | Alcântara ⓘ |
| locatedInAdministrativeTerritory |
Northeast Region of Brazil
ⓘ
State of Maranhão ⓘ
linked to:
Maranhão
|
| locatedOn | Atlantic coast of Brazil ⓘ |
| near | São Luís ⓘ |
| notableEvent |
VLS-1 V01 launch failure in 1997
ⓘ
VLS-1 V03 accident in 2003 ⓘ |
| notableFeature |
high rotational speed of Earth at site latitude
ⓘ
very low launch azimuths for equatorial orbits ⓘ |
| operator |
Brazilian Air Force
ⓘ
Brazilian Space Agency ⓘ |
| primaryRocketProgram |
Brazilian sounding rockets
ⓘ
VLS-1 ⓘ
linked to:
VLS launch vehicle program
|
| proximityToEquator | high ⓘ |
| runwayPresence | yes ⓘ |
| runwayUse | support aircraft operations ⓘ |
| seaAccess | yes ⓘ |
| usedBy |
Brazilian civilian space programs
ⓘ
Brazilian military ⓘ
linked to:
Brazilian Armed Forces
|
| usedFor |
satellite launches
ⓘ
sounding rocket launches ⓘ suborbital launches ⓘ technology demonstration missions ⓘ |
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: Alcântara Launch Center Description of subject: Alcântara Launch Center is a Brazilian spaceport in the state of Maranhão used for satellite launches, notable for its proximity to the equator which offers fuel-efficient orbital trajectories.
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Alcântara Launch Center
linked to: Alcântara Launch Center
linked to: Alcântara Launch Center