CASSIOPE
E46129
CASSIOPE is a Canadian multi-purpose satellite that combines scientific research of Earth’s upper atmosphere with a commercial communications payload.
All labels observed (1)
| Label | Occurrences |
|---|---|
| CASSIOPE canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T364039 — 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: CASSIOPE Context triple: [Canadian Space Agency, operates, CASSIOPE]
-
A.
Leonidaion
Leonidaion is an ancient guesthouse complex at Olympia in Greece, built in the 4th century BCE to accommodate distinguished visitors during the Olympic Games.
-
B.
Celaeno
Celaeno is one of the Pleiad nymphs in Greek mythology, a daughter of the Titan Atlas and the Oceanid Pleione.
-
C.
Leda
Leda is a figure in Greek mythology, a Spartan queen best known as the mother of Helen of Troy and the Dioscuri after being seduced by Zeus.
-
D.
Alcyone
Alcyone is one of the Pleiades in Greek mythology, a daughter of the Titan Atlas and often associated with the star cluster of the same name.
-
E.
Hyperion
Hyperion is one of Saturn’s larger, irregularly shaped moons, known for its chaotic rotation and sponge-like, heavily cratered surface.
- 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: CASSIOPE Target entity description: CASSIOPE is a Canadian multi-purpose satellite that combines scientific research of Earth’s upper atmosphere with a commercial communications payload.
-
A.
Leonidaion
Leonidaion is an ancient guesthouse complex at Olympia in Greece, built in the 4th century BCE to accommodate distinguished visitors during the Olympic Games.
-
B.
Celaeno
Celaeno is one of the Pleiad nymphs in Greek mythology, a daughter of the Titan Atlas and the Oceanid Pleione.
-
C.
Leda
Leda is a figure in Greek mythology, a Spartan queen best known as the mother of Helen of Troy and the Dioscuri after being seduced by Zeus.
-
D.
Alcyone
Alcyone is one of the Pleiades in Greek mythology, a daughter of the Titan Atlas and often associated with the star cluster of the same name.
-
E.
Hyperion
Hyperion is one of Saturn’s larger, irregularly shaped moons, known for its chaotic rotation and sponge-like, heavily cratered surface.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
Canadian satellite
ⓘ
communications satellite ⓘ satellite ⓘ scientific satellite ⓘ |
| abbreviationFor | Cascade, Smallsat and Ionospheric Polar Explorer ⓘ |
| commercialObjective | provide high-speed store-and-forward data services ⓘ |
| communicationsPayload | Cascade ⓘ |
| countryOfOrigin | Canada ⓘ |
| dataType |
communications data
ⓘ
space environment measurements ⓘ |
| fundingAgency | Canadian Space Agency ⓘ |
| hasAlternateName |
Cascade, Smallsat and Ionospheric Polar Explorer
ⓘ
surface form:
CASCADE Smallsat and Ionospheric Polar Explorer
|
| hasComponent |
Cascade payload
ⓘ
ePOP ⓘ |
| inclination | approximately 80 degrees ⓘ |
| launchCountry |
United States of America
ⓘ
surface form:
United States
|
| launchDate | 2013-09-29 ⓘ |
| launchMass | approximately 500 kilograms ⓘ |
| launchServiceProvider | SpaceX ⓘ |
| launchSite |
Vandenberg Space Force Base
ⓘ
surface form:
Vandenberg Air Force Base
|
| launchVehicle |
Falcon 9 rocket
ⓘ
surface form:
Falcon 9
|
| manufacturer |
MDA (MacDonald, Dettwiler and Associates)
ⓘ
surface form:
MacDonald, Dettwiler and Associates
|
| massClass | smallsat ⓘ |
| missionType |
commercial communications
ⓘ
multi-purpose mission ⓘ scientific research ⓘ |
| operator |
CSA
ⓘ
Canadian Space Agency ⓘ |
| orbitRegime | elliptical orbit ⓘ |
| orbitType | low Earth orbit ⓘ |
| program | Canadian small satellite program ⓘ |
| purpose |
study Earth’s upper atmosphere
ⓘ
support commercial communications services ⓘ |
| registration | Canadian government space asset ⓘ |
| scientificDiscipline |
atmospheric science
ⓘ
space physics ⓘ space weather research ⓘ |
| scientificObjective |
investigate Earth’s ionosphere
ⓘ
measure plasma in the upper atmosphere ⓘ study space weather effects ⓘ |
| scientificPayload | ePOP ⓘ |
| spacecraftBus | small satellite bus ⓘ |
| status | in orbit ⓘ |
| target |
Earth’s upper atmosphere
ⓘ
polar ionosphere ⓘ |
| usesFrequencyBand | radio frequencies for communications ⓘ |
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: CASSIOPE Description of subject: CASSIOPE is a Canadian multi-purpose satellite that combines scientific research of Earth’s upper atmosphere with a commercial communications payload.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.