MDA (MacDonald, Dettwiler and Associates)
E259979
MDA (MacDonald, Dettwiler and Associates) is a Canadian space technology company best known for developing advanced robotics and satellite systems for international space missions.
All labels observed (4)
| Label | Occurrences |
|---|---|
| MacDonald, Dettwiler and Associates | 4 |
| MDA (MacDonald, Dettwiler and Associates) canonical | 3 |
| MacDonald, Dettwiler and Associates Ltd. | 3 |
| Canadian Space Agency and MDA | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2372654 — 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: MDA (MacDonald, Dettwiler and Associates) Context triple: [Mobile Servicing System, developedBy, MDA (MacDonald, Dettwiler and Associates)]
-
A.
Sierra Nevada Corporation
Sierra Nevada Corporation is a U.S. aerospace and defense contractor known for developing advanced space systems, including the Dream Chaser spaceplane, and providing technology solutions to government and commercial customers.
-
B.
Lockheed Martin Space
Lockheed Martin Space is a major division of Lockheed Martin Corporation that designs, develops, and manufactures advanced space systems and technologies for government and commercial customers.
-
C.
Hughes Aircraft Company
Hughes Aircraft Company was a major American aerospace and defense contractor founded by Howard Hughes, known for pioneering work in aviation, electronics, and space systems.
-
D.
Ball Aerospace
Ball Aerospace is an American aerospace company known for designing and building advanced space systems, instruments, and components for NASA, the U.S. military, and commercial customers.
-
E.
Sundstrand Corporation
Sundstrand Corporation was a major American manufacturer of aerospace and industrial products that later became part of Hamilton Sundstrand through a corporate merger.
- 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: MDA (MacDonald, Dettwiler and Associates) Target entity description: MDA (MacDonald, Dettwiler and Associates) is a Canadian space technology company best known for developing advanced robotics and satellite systems for international space missions.
-
A.
Sierra Nevada Corporation
Sierra Nevada Corporation is a U.S. aerospace and defense contractor known for developing advanced space systems, including the Dream Chaser spaceplane, and providing technology solutions to government and commercial customers.
-
B.
Lockheed Martin Space
Lockheed Martin Space is a major division of Lockheed Martin Corporation that designs, develops, and manufactures advanced space systems and technologies for government and commercial customers.
-
C.
Hughes Aircraft Company
Hughes Aircraft Company was a major American aerospace and defense contractor founded by Howard Hughes, known for pioneering work in aviation, electronics, and space systems.
-
D.
Ball Aerospace
Ball Aerospace is an American aerospace company known for designing and building advanced space systems, instruments, and components for NASA, the U.S. military, and commercial customers.
-
E.
Sundstrand Corporation
Sundstrand Corporation was a major American manufacturer of aerospace and industrial products that later became part of Hamilton Sundstrand through a corporate merger.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
aerospace company
ⓘ
public company ⓘ technology company ⓘ |
| acquired | Space Systems/Loral ⓘ |
| acquiredBy | Maxar Technologies ⓘ |
| client |
Canadian Space Agency
ⓘ
European Space Agency ⓘ NASA ⓘ |
| continent | North America ⓘ |
| country | Canada ⓘ |
| developed |
Canadarm2
ⓘ
surface form:
Canadarm2 robotic arm for the ISS
Special Purpose Dexterous Manipulator ⓘ
surface form:
Dextre Special Purpose Dexterous Manipulator
Mobile Servicing System ⓘ
surface form:
Mobile Servicing System for the ISS
RADARSAT Constellation Mission ⓘ
surface form:
RADARSAT Constellation Mission satellites
RADARSAT-2 satellite bus and payload ⓘ |
| developedFor | International Space Station ⓘ |
| formerHeadquartersLocation |
Richmond, British Columbia
ⓘ
surface form:
Richmond, British Columbia, Canada
|
| foundedBy |
John MacDonald
ⓘ
surface form:
John S. MacDonald
Verner Dettwiler ⓘ |
| hasSubsidiary |
MDA Geospatial Services
ⓘ
MDA Space Missions ⓘ |
| headquartersLocation |
Brampton
ⓘ
surface form:
Brampton, Ontario, Canada
|
| inception | 1969 ⓘ |
| industry |
geospatial services
ⓘ
robotics ⓘ satellite technology ⓘ space technology ⓘ |
| languageOfWork | English ⓘ |
| listedOn | Toronto Stock Exchange ⓘ |
| notableWork |
Canadarm
ⓘ
Canadarm2 ⓘ Dextre ⓘ RADARSAT Constellation Mission ⓘ RADARSAT-1 ⓘ RADARSAT-2 ⓘ |
| originalName |
MDA (MacDonald, Dettwiler and Associates)
self-linksurface differs
ⓘ
surface form:
MacDonald, Dettwiler and Associates Ltd.
|
| participatedIn |
International Space Station program
ⓘ
NASA Space Shuttle program ⓘ
surface form:
Space Shuttle program
|
| product |
geospatial information products
ⓘ
ground systems for satellites ⓘ satellite buses ⓘ satellite payloads ⓘ space robotics systems ⓘ |
| shortName | MDA ⓘ |
| specializesIn |
Earth observation
ⓘ
satellite systems ⓘ space mission support ⓘ space robotics ⓘ |
| spunOffFrom | Maxar Technologies ⓘ |
| tickerSymbol | MDA ⓘ |
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: MDA (MacDonald, Dettwiler and Associates) Description of subject: MDA (MacDonald, Dettwiler and Associates) is a Canadian space technology company best known for developing advanced robotics and satellite systems for international space missions.
Referenced by (11)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
MacDonald, Dettwiler and Associates
this entity surface form:
MacDonald, Dettwiler and Associates
this entity surface form:
MacDonald, Dettwiler and Associates
subject surface form:
Dextre
this entity surface form:
Canadian Space Agency and MDA
MDA (MacDonald, Dettwiler and Associates)
→
originalName
→
MDA (MacDonald, Dettwiler and Associates)
self-linksurface differs
ⓘ
this entity surface form:
MacDonald, Dettwiler and Associates Ltd.
this entity surface form:
MacDonald, Dettwiler and Associates
subject surface form:
Sapphire
subject surface form:
Sapphire
this entity surface form:
MacDonald, Dettwiler and Associates Ltd.
this entity surface form:
MacDonald, Dettwiler and Associates Ltd.