IRS-1A
E260019
IRS-1A is an Indian remote sensing satellite in the IRS series used primarily for Earth observation and resource monitoring.
All labels observed (1)
| Label | Occurrences |
|---|---|
| IRS-1A canonical | 13 |
How this entity was disambiguated
This entity first appeared as the object of triple T2373150 — 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: IRS-1A Context triple: [IRS series, hasMember, IRS-1A]
-
A.
IRI
IRI (Industrial Research Institute) is a U.S.-based association of industrial and service companies focused on advancing innovation, research, and development management practices.
-
B.
IR8
IR8 is a high-yielding semi-dwarf rice variety developed during the Green Revolution that significantly increased rice production worldwide.
-
C.
IRIA
IRIA (Institut de Recherche en Informatique et en Automatique) was the original French national research institute for computer science and automation, later becoming INRIA, and played a key role in early networking and informatics research.
-
D.
IRU
IRU is the abbreviation for the International Romani Union, a global organization representing the interests and rights of Romani people.
-
E.
S-IC
S-IC was the massive first stage of the Saturn V rocket, powered by five F-1 engines to lift Apollo missions off the launch pad and through the lower atmosphere.
- 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: IRS-1A Target entity description: IRS-1A is an Indian remote sensing satellite in the IRS series used primarily for Earth observation and resource monitoring.
-
A.
IRI
IRI (Industrial Research Institute) is a U.S.-based association of industrial and service companies focused on advancing innovation, research, and development management practices.
-
B.
IR8
IR8 is a high-yielding semi-dwarf rice variety developed during the Green Revolution that significantly increased rice production worldwide.
-
C.
IRIA
IRIA (Institut de Recherche en Informatique et en Automatique) was the original French national research institute for computer science and automation, later becoming INRIA, and played a key role in early networking and informatics research.
-
D.
IRU
IRU is the abbreviation for the International Romani Union, a global organization representing the interests and rights of Romani people.
-
E.
S-IC
S-IC was the massive first stage of the Saturn V rocket, powered by five F-1 engines to lift Apollo missions off the launch pad and through the lower atmosphere.
- F. None of above. chosen
Statements (40)
| Predicate | Object |
|---|---|
| instanceOf |
Earth observation satellite
ⓘ
Indian Remote Sensing satellite ⓘ remote sensing satellite ⓘ |
| abbreviation |
Indian Remote Sensing Satellite-1A
ⓘ
linked to:
Indian Remote Sensing satellite series
|
| application |
agricultural monitoring
ⓘ
forestry monitoring ⓘ land use mapping ⓘ water resources assessment ⓘ |
| countryOfOrigin | India ⓘ |
| dataDistribution | national remote sensing applications in India ⓘ |
| dataUse |
disaster management support
ⓘ
environmental monitoring ⓘ natural resource management ⓘ |
| dataUsers |
Indian government agencies
ⓘ
scientific community in India ⓘ |
| followedBy | IRS-1B ⓘ |
| launchCountry | Soviet Union ⓘ |
| launchMass | approximately 975 kilograms ⓘ |
| launchSite | Baikonur Cosmodrome ⓘ |
| launchVehicle |
Vostok-2M
ⓘ
linked to:
Vostok-2 rocket
|
| missionType |
civilian
ⓘ
non-military ⓘ |
| operator |
ISRO
ⓘ
linked to:
Indian Space Research Organisation
Indian Space Research Organisation ⓘ |
| orbitType |
Sun-synchronous orbit
ⓘ
near-polar orbit ⓘ |
| partOfSeries |
IRS series
ⓘ
Indian Remote Sensing satellite series ⓘ |
| payload |
LISS-I sensor
ⓘ
LISS-II sensor ⓘ |
| precededBy |
Bhaskara-II
ⓘ
linked to:
Bhaskara I
|
| primaryUse |
Earth observation
ⓘ
remote sensing of natural resources ⓘ resource monitoring ⓘ |
| program |
Indian Remote Sensing Programme
ⓘ
linked to:
Indian Remote Sensing satellite series
|
| purpose | operational remote sensing for India ⓘ |
| sensorType | multispectral scanner ⓘ |
| spaceAgency | Indian Space Research Organisation ⓘ |
| spectralBands |
near-infrared
ⓘ
visible ⓘ |
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: IRS-1A Description of subject: IRS-1A is an Indian remote sensing satellite in the IRS series used primarily for Earth observation and resource monitoring.
Referenced by (13)
Full triples — surface form annotated when it differs from this entity's canonical label.