IRS-P4
E264413
IRS-P4 is an Indian remote sensing satellite used primarily for ocean and coastal monitoring as part of the IRS (Indian Remote Sensing) satellite series.
All labels observed (1)
| Label | Occurrences |
|---|---|
| IRS-P4 canonical | 8 |
How this entity was disambiguated
This entity first appeared as the object of triple T2373156 — 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-P4 Context triple: [IRS series, hasMember, IRS-P4]
-
A.
IRS-P2
IRS-P2 is an Indian remote sensing satellite in the IRS series used primarily for Earth observation and resource monitoring.
-
B.
IRS-P3
IRS-P3 is an Indian remote sensing satellite in the IRS series used primarily for Earth observation and resource monitoring.
-
C.
IRS-P6
IRS-P6, also known as Resourcesat-1, is an Indian Earth observation satellite designed for resource monitoring and management, including agriculture, forestry, and land-use mapping.
-
D.
IRS-1D
IRS-1D is an Indian remote sensing satellite in the IRS series used primarily for Earth observation and resource monitoring.
-
E.
IRS-1B
IRS-1B is an Indian remote sensing satellite in the IRS series used primarily for Earth observation and resource monitoring.
- 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-P4 Target entity description: IRS-P4 is an Indian remote sensing satellite used primarily for ocean and coastal monitoring as part of the IRS (Indian Remote Sensing) satellite series.
-
A.
IRS-P2
IRS-P2 is an Indian remote sensing satellite in the IRS series used primarily for Earth observation and resource monitoring.
-
B.
IRS-P3
IRS-P3 is an Indian remote sensing satellite in the IRS series used primarily for Earth observation and resource monitoring.
-
C.
IRS-P6
IRS-P6, also known as Resourcesat-1, is an Indian Earth observation satellite designed for resource monitoring and management, including agriculture, forestry, and land-use mapping.
-
D.
IRS-1D
IRS-1D is an Indian remote sensing satellite in the IRS series used primarily for Earth observation and resource monitoring.
-
E.
IRS-1B
IRS-1B is an Indian remote sensing satellite in the IRS series used primarily for Earth observation and resource monitoring.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Earth observation satellite
ⓘ
Indian Remote Sensing satellite ⓘ |
| agencyAbbreviation |
ISRO
ⓘ
linked to:
Indian Space Research Organisation
|
| alsoKnownAs | Oceansat-1 ⓘ |
| altitude | approximately 720 km ⓘ |
| application |
climate studies
ⓘ
coastal zone management ⓘ fisheries forecasting ⓘ marine pollution monitoring ⓘ oceanographic research ⓘ |
| attitudeControl | three-axis stabilised ⓘ |
| countryOfOrigin | India ⓘ |
| dataUser |
Indian scientific community
ⓘ
international oceanographic community ⓘ |
| inclination | 98.3 degrees ⓘ |
| instrumentPurpose |
cloud liquid water content
ⓘ
measurement of chlorophyll concentration ⓘ measurement of ocean colour ⓘ sea surface temperature measurement ⓘ water vapour over oceans ⓘ wind speed over oceans ⓘ |
| launchCountry | India ⓘ |
| launchDate | 1999-05-26 ⓘ |
| launchMass | 1050 kg ⓘ |
| launchSite |
Satish Dhawan Space Centre
ⓘ
Sriharikota ⓘ |
| launchVehicle | PSLV-C2 ⓘ |
| missionType |
oceanography
ⓘ
remote sensing ⓘ |
| operator |
ISRO
ⓘ
linked to:
Indian Space Research Organisation
Indian Space Research Organisation ⓘ |
| orbitalPeriod | approximately 101 minutes ⓘ |
| orbitType |
Sun-synchronous orbit
ⓘ
near-polar orbit ⓘ |
| partOfSeries | Indian Remote Sensing satellite series ⓘ |
| payload |
MSMR
ⓘ
Multi-frequency Scanning Microwave Radiometer ⓘ OCM ⓘ Ocean Colour Monitor ⓘ |
| powerSource | solar panels ⓘ |
| primaryMission |
coastal monitoring
ⓘ
ocean monitoring ⓘ |
| program |
Indian Remote Sensing Programme
ⓘ
linked to:
Indian Remote Sensing satellite series
|
| spaceAgency | Indian Space Research Organisation ⓘ |
| spacecraftBus | IRS satellite bus ⓘ |
| status | mission completed ⓘ |
| successor |
Oceansat-2
ⓘ
Oceansat-3 ⓘ |
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-P4 Description of subject: IRS-P4 is an Indian remote sensing satellite used primarily for ocean and coastal monitoring as part of the IRS (Indian Remote Sensing) satellite series.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.