RISAT series satellites
E260016
Earth observation satellite series
radar imaging Earth observation satellite
radar imaging reconnaissance satellite
satellite series
The RISAT series satellites are India’s radar imaging Earth observation spacecraft designed for all-weather, day-and-night surveillance and reconnaissance.
All labels observed (9)
| Label | Occurrences |
|---|---|
| RISAT-1 | 3 |
| RISAT-2 | 3 |
| RISAT series | 1 |
| RISAT series satellites canonical | 1 |
| RISAT-1A | 1 |
| RISAT-2A | 1 |
| RISAT-2B | 1 |
| RISAT-2BR1 | 1 |
| Radar Imaging Satellite | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2373063 — 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: RISAT series satellites Context triple: [Polar Satellite Launch Vehicle, launchedMission, RISAT series satellites]
-
A.
INSAT series
The INSAT series is a fleet of Indian multipurpose geostationary satellites that provide telecommunications, broadcasting, meteorology, and search-and-rescue services across the Indian subcontinent.
-
B.
GSAT-19
GSAT-19 is an Indian high-throughput communications satellite designed to test next-generation technologies and significantly enhance the country’s data transmission capabilities.
-
C.
GSAT-1
GSAT-1 is an Indian communications satellite that served as the inaugural payload for the Geosynchronous Satellite Launch Vehicle (GSLV) program.
-
D.
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.
-
E.
RADARSAT-2
RADARSAT-2 is a Canadian Earth observation satellite equipped with advanced synthetic aperture radar (SAR) technology used for environmental monitoring, resource management, and surveillance.
- 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: RISAT series satellites Target entity description: The RISAT series satellites are India’s radar imaging Earth observation spacecraft designed for all-weather, day-and-night surveillance and reconnaissance.
-
A.
INSAT series
The INSAT series is a fleet of Indian multipurpose geostationary satellites that provide telecommunications, broadcasting, meteorology, and search-and-rescue services across the Indian subcontinent.
-
B.
GSAT-19
GSAT-19 is an Indian high-throughput communications satellite designed to test next-generation technologies and significantly enhance the country’s data transmission capabilities.
-
C.
GSAT-1
GSAT-1 is an Indian communications satellite that served as the inaugural payload for the Geosynchronous Satellite Launch Vehicle (GSLV) program.
-
D.
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.
-
E.
RADARSAT-2
RADARSAT-2 is a Canadian Earth observation satellite equipped with advanced synthetic aperture radar (SAR) technology used for environmental monitoring, resource management, and surveillance.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
Earth observation satellite series
ⓘ
radar imaging Earth observation satellite ⓘ radar imaging Earth observation satellite ⓘ radar imaging Earth observation satellite ⓘ radar imaging Earth observation satellite ⓘ radar imaging reconnaissance satellite ⓘ satellite series ⓘ |
| abbreviationOf |
RISAT series satellites
self-linksurface differs
ⓘ
surface form:
Radar Imaging Satellite
|
| application |
agriculture monitoring
ⓘ
border surveillance ⓘ disaster management ⓘ flood mapping ⓘ forest and vegetation monitoring ⓘ maritime surveillance ⓘ military reconnaissance ⓘ |
| capability |
all-weather imaging
ⓘ
day-and-night imaging ⓘ |
| countryOfOrigin |
India
ⓘ
India ⓘ India ⓘ India ⓘ India ⓘ India ⓘ |
| hasMember |
RISAT series satellites
self-linksurface differs
ⓘ
surface form:
RISAT-1
RISAT series satellites self-linksurface differs ⓘ
surface form:
RISAT-1A
RISAT series satellites self-linksurface differs ⓘ
surface form:
RISAT-2
RISAT series satellites self-linksurface differs ⓘ
surface form:
RISAT-2A
RISAT series satellites self-linksurface differs ⓘ
surface form:
RISAT-2B
RISAT series satellites self-linksurface differs ⓘ
surface form:
RISAT-2BR1
|
| imagingType |
X-band synthetic aperture radar
ⓘ
synthetic aperture radar ⓘ |
| instrument | C-band synthetic aperture radar ⓘ |
| launchAgency |
Indian Space Research Organisation
ⓘ
surface form:
ISRO
|
| launchVehicle | PSLV-XL ⓘ |
| manufacturer | Indian Space Research Organisation ⓘ |
| operator |
Indian Space Research Organisation
ⓘ
surface form:
ISRO
Indian Space Research Organisation ⓘ
surface form:
ISRO
Indian Space Research Organisation ⓘ
surface form:
ISRO
Indian Space Research Organisation ⓘ
surface form:
ISRO
Indian Space Research Organisation ⓘ
surface form:
ISRO
Indian Space Research Organisation ⓘ |
| orbitType | Sun-synchronous orbit ⓘ |
| primaryMission |
Earth observation
ⓘ
all-weather surveillance ⓘ continuity of RISAT-1 services ⓘ high-resolution radar imaging ⓘ military surveillance ⓘ radar imaging of Earth ⓘ reconnaissance ⓘ surveillance ⓘ |
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: RISAT series satellites Description of subject: The RISAT series satellites are India’s radar imaging Earth observation spacecraft designed for all-weather, day-and-night surveillance and reconnaissance.
Referenced by (13)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
RISAT-1
this entity surface form:
RISAT-2
this entity surface form:
Radar Imaging Satellite
this entity surface form:
RISAT-1
this entity surface form:
RISAT-2
this entity surface form:
RISAT-2B
this entity surface form:
RISAT-2BR1
this entity surface form:
RISAT-1A
this entity surface form:
RISAT-2A
this entity surface form:
RISAT series
this entity surface form:
RISAT-1
this entity surface form:
RISAT-2