Metop satellites
E729839
infrared atmospheric sounding interferometer
meteorological satellite
polar-orbiting satellites
radiometer
scatterometer
series of meteorological satellites
Metop satellites are a series of European polar-orbiting meteorological spacecraft that provide long-term data for weather forecasting and climate monitoring.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Metop satellites canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8378714 — 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: Metop satellites Context triple: [European Organisation for the Exploitation of Meteorological Satellites, operates, Metop satellites]
-
A.
Alouette satellites
The Alouette satellites were pioneering Canadian scientific spacecraft launched in the 1960s to study the ionosphere, marking Canada as one of the first nations to design and build its own satellite.
-
B.
Pleiades Earth observation satellites
The Pleiades Earth observation satellites are a pair of high-resolution French optical imaging spacecraft that provide detailed, frequently updated views of the Earth's surface for civilian and defense applications.
-
C.
Molniya communications satellites
Molniya communications satellites are Soviet/Russian spacecraft placed in highly elliptical Molniya orbits to provide long-duration communications coverage over high-latitude regions such as northern Russia.
-
D.
Terra satellite
Terra is a flagship NASA Earth observation satellite that carries multiple instruments to monitor the planet’s climate, land, oceans, and atmosphere from polar orbit.
-
E.
Sapphire (satellite)
Sapphire is a Canadian military surveillance satellite designed to track space objects and contribute to space situational awareness.
- 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: Metop satellites Target entity description: Metop satellites are a series of European polar-orbiting meteorological spacecraft that provide long-term data for weather forecasting and climate monitoring.
-
A.
Alouette satellites
The Alouette satellites were pioneering Canadian scientific spacecraft launched in the 1960s to study the ionosphere, marking Canada as one of the first nations to design and build its own satellite.
-
B.
Pleiades Earth observation satellites
The Pleiades Earth observation satellites are a pair of high-resolution French optical imaging spacecraft that provide detailed, frequently updated views of the Earth's surface for civilian and defense applications.
-
C.
Molniya communications satellites
Molniya communications satellites are Soviet/Russian spacecraft placed in highly elliptical Molniya orbits to provide long-duration communications coverage over high-latitude regions such as northern Russia.
-
D.
Terra satellite
Terra is a flagship NASA Earth observation satellite that carries multiple instruments to monitor the planet’s climate, land, oceans, and atmosphere from polar orbit.
-
E.
Sapphire (satellite)
Sapphire is a Canadian military surveillance satellite designed to track space objects and contribute to space situational awareness.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
infrared atmospheric sounding interferometer
ⓘ
meteorological satellite ⓘ polar-orbiting satellites ⓘ radiometer ⓘ scatterometer ⓘ series of meteorological satellites ⓘ |
| carriesInstrument |
AMSU-A
NERFINISHED
ⓘ
ASCAT NERFINISHED ⓘ AVHRR NERFINISHED ⓘ GOME-2 NERFINISHED ⓘ GRAS NERFINISHED ⓘ IASI NERFINISHED ⓘ MHS NERFINISHED ⓘ SEM NERFINISHED ⓘ |
| cooperationWith |
European Space Agency
NERFINISHED
ⓘ
NOAA NERFINISHED ⓘ |
| countryOfOperator | European Organisation for the Exploitation of Meteorological Satellites NERFINISHED ⓘ |
| dataType |
cloud imagery
ⓘ
humidity profiles ⓘ ozone concentration ⓘ sea surface temperature ⓘ temperature profiles ⓘ wind vectors over ocean ⓘ |
| dataUsedBy |
climate reanalysis projects
ⓘ
numerical weather prediction models ⓘ |
| hasPart |
Metop-A
NERFINISHED
ⓘ
Metop-B NERFINISHED ⓘ Metop-C NERFINISHED ⓘ |
| inclination | approximately 98.7 degrees ⓘ |
| launchDate |
2006-10-19
ⓘ
2012-09-17 ⓘ 2018-11-07 ⓘ |
| launchSite | Baikonur Cosmodrome NERFINISHED ⓘ |
| launchVehicle | Soyuz-2 rocket NERFINISHED ⓘ |
| localTimeOfDescendingNode | 09:30 ⓘ |
| operator |
EUMETSAT
NERFINISHED
ⓘ
EUMETSAT NERFINISHED ⓘ EUMETSAT NERFINISHED ⓘ EUMETSAT NERFINISHED ⓘ |
| orbitRegime | Low Earth orbit ⓘ |
| orbitType | Sun-synchronous orbit ⓘ |
| program | EUMETSAT Polar System NERFINISHED ⓘ |
| purpose |
atmospheric sounding
ⓘ
climate monitoring ⓘ environmental monitoring ⓘ weather forecasting ⓘ |
| status |
operational
ⓘ
operational ⓘ retired ⓘ |
| temporalCoverage | from 2006 onward ⓘ |
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: Metop satellites Description of subject: Metop satellites are a series of European polar-orbiting meteorological spacecraft that provide long-term data for weather forecasting and climate monitoring.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
European Organisation for the Exploitation of Meteorological Satellites
→
operates
→
Metop satellites
ⓘ