Gaofen-2
E829211
Gaofen-2 is a Chinese high-resolution Earth observation satellite used for detailed land imaging, resource monitoring, and disaster assessment.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Gaofen-2 canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T9890054 — 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: Gaofen-2 Context triple: [Gaofen high-resolution Earth observation program, hasComponent, Gaofen-2]
-
A.
Gaofen-1
Gaofen-1 is a Chinese high-resolution Earth observation satellite used for applications such as land resource surveying, environmental monitoring, and disaster assessment.
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B.
Gaofen high-resolution Earth observation program
The Gaofen high-resolution Earth observation program is a Chinese civilian satellite initiative that provides detailed optical and radar imagery for applications such as environmental monitoring, disaster management, and resource surveying.
-
C.
Long March 4B
Long March 4B is a Chinese three-stage orbital launch vehicle used primarily to place satellites into sun-synchronous and low Earth orbits.
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D.
Long March 4A
Long March 4A is a Chinese three-stage orbital launch vehicle used primarily to place satellites into sun-synchronous and low Earth orbits.
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E.
Long March 4C
Long March 4C is a Chinese three-stage orbital launch vehicle used primarily to place satellites into sun-synchronous and low Earth orbits.
- 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: Gaofen-2 Target entity description: Gaofen-2 is a Chinese high-resolution Earth observation satellite used for detailed land imaging, resource monitoring, and disaster assessment.
-
A.
Gaofen-1
Gaofen-1 is a Chinese high-resolution Earth observation satellite used for applications such as land resource surveying, environmental monitoring, and disaster assessment.
-
B.
Gaofen high-resolution Earth observation program
The Gaofen high-resolution Earth observation program is a Chinese civilian satellite initiative that provides detailed optical and radar imagery for applications such as environmental monitoring, disaster management, and resource surveying.
-
C.
Long March 4B
Long March 4B is a Chinese three-stage orbital launch vehicle used primarily to place satellites into sun-synchronous and low Earth orbits.
-
D.
Long March 4A
Long March 4A is a Chinese three-stage orbital launch vehicle used primarily to place satellites into sun-synchronous and low Earth orbits.
-
E.
Long March 4C
Long March 4C is a Chinese three-stage orbital launch vehicle used primarily to place satellites into sun-synchronous and low Earth orbits.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Earth observation satellite
ⓘ
remote sensing satellite ⓘ |
| abbreviation | GF-2 ⓘ |
| application |
disaster damage assessment
ⓘ
environmental protection planning ⓘ forest resource monitoring ⓘ infrastructure monitoring ⓘ land use classification ⓘ water resource monitoring ⓘ |
| belongsToConstellation |
Gaofen constellation
ⓘ
linked to:
Gaofen series
|
| countryOfOrigin | China ⓘ |
| dataType |
high-resolution satellite images
ⓘ
optical imagery ⓘ |
| dataUser |
Chinese government agencies
ⓘ
disaster management agencies ⓘ environmental monitoring agencies ⓘ resource management agencies ⓘ |
| developedBy | China Academy of Space Technology ⓘ |
| launchCountry | China ⓘ |
| launchDate | 2014-08-19 ⓘ |
| launchSite | Taiyuan Satellite Launch Center ⓘ |
| launchVehicle | Long March 4B ⓘ |
| missionType |
Earth observation
ⓘ
optical imaging ⓘ |
| multispectralResolution | 4 m ⓘ |
| operator |
CNSA
ⓘ
linked to:
China National Space Administration
China National Space Administration ⓘ |
| orbitRegime | Low Earth orbit ⓘ |
| orbitType | Sun-synchronous orbit ⓘ |
| panchromaticResolution | 1 m ⓘ |
| partOf | China High-resolution Earth Observation System ⓘ |
| powerSource | solar panels ⓘ |
| predecessor | Gaofen-1 ⓘ |
| primaryUse |
agricultural monitoring
ⓘ
disaster assessment ⓘ environmental monitoring ⓘ land imaging ⓘ mapping ⓘ resource monitoring ⓘ urban planning support ⓘ |
| program | Gaofen series ⓘ |
| resolutionClass | high-resolution ⓘ |
| revisitTime | less than 5 days ⓘ |
| spectralType |
multispectral
ⓘ
panchromatic ⓘ |
| successor | Gaofen-6 ⓘ |
| swathWidth | 45 km ⓘ |
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: Gaofen-2 Description of subject: Gaofen-2 is a Chinese high-resolution Earth observation satellite used for detailed land imaging, resource monitoring, and disaster assessment.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.