IRS-1E
E898956
IRS-1E was an experimental Indian remote sensing satellite launched as an early payload to test and validate the capabilities of the PSLV launch vehicle.
All labels observed (1)
| Label | Occurrences |
|---|---|
| IRS-1E canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11001583 — 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-1E Context triple: [PSLV launch vehicle family, firstFlightPayload, IRS-1E]
-
A.
IRS-1B
IRS-1B is an Indian remote sensing satellite in the IRS series used primarily for Earth observation and resource monitoring.
-
B.
IRS-1D
IRS-1D is an Indian remote sensing satellite in the IRS series used primarily for Earth observation and resource monitoring.
-
C.
IRS-1A
IRS-1A is an Indian remote sensing satellite in the IRS series used primarily for Earth observation and resource monitoring.
-
D.
IRS-1C
IRS-1C is an Indian remote sensing satellite in the IRS series used primarily for Earth observation and resource monitoring.
-
E.
IR-13
IR-13 is the ISO 3166-2 subdivision code assigned to Iran’s Kurdistan Province.
- 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-1E Target entity description: IRS-1E was an experimental Indian remote sensing satellite launched as an early payload to test and validate the capabilities of the PSLV launch vehicle.
-
A.
IRS-1B
IRS-1B is an Indian remote sensing satellite in the IRS series used primarily for Earth observation and resource monitoring.
-
B.
IRS-1D
IRS-1D is an Indian remote sensing satellite in the IRS series used primarily for Earth observation and resource monitoring.
-
C.
IRS-1A
IRS-1A is an Indian remote sensing satellite in the IRS series used primarily for Earth observation and resource monitoring.
-
D.
IRS-1C
IRS-1C is an Indian remote sensing satellite in the IRS series used primarily for Earth observation and resource monitoring.
-
E.
IR-13
IR-13 is the ISO 3166-2 subdivision code assigned to Iran’s Kurdistan Province.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
Earth observation satellite
ⓘ
experimental satellite ⓘ remote sensing satellite ⓘ |
| agency | Department of Space, Government of India NERFINISHED ⓘ |
| belongsToSeries |
IRS-1 series
NERFINISHED
ⓘ
Indian Remote Sensing satellites NERFINISHED ⓘ |
| countryOfOrigin | India ⓘ |
| dataTypePlanned | remote sensing imagery ⓘ |
| followedBy | IRS-P2 ⓘ |
| intendedOrbit | Sun-synchronous orbit ⓘ |
| intendedUse |
Earth resources observation
ⓘ
remote sensing ⓘ |
| launchAttemptNumberForPSLV | 1 ⓘ |
| launchCountry | India NERFINISHED ⓘ |
| launchDate | 1993-09-20 ⓘ |
| launchFailureCause | PSLV first developmental flight anomaly ⓘ |
| launchMass | unknown ⓘ |
| launchOrganisation |
ISRO
NERFINISHED
ⓘ
Indian Space Research Organisation NERFINISHED ⓘ |
| launchOutcome | launch failure ⓘ |
| launchPad | First Launch Pad, Sriharikota (planned/used) NERFINISHED ⓘ |
| launchSite |
Satish Dhawan Space Centre
NERFINISHED
ⓘ
Sriharikota NERFINISHED ⓘ |
| launchVehicle |
PSLV
NERFINISHED
ⓘ
Polar Satellite Launch Vehicle NERFINISHED ⓘ |
| launchVehicleRole | early payload for PSLV test flight ⓘ |
| launchVehicleVariant | PSLV-D1 NERFINISHED ⓘ |
| manufacturer |
ISRO Satellite Centre (ISAC) (likely)
NERFINISHED
ⓘ
Indian Space Research Organisation NERFINISHED ⓘ |
| missionOutcome | satellite lost ⓘ |
| missionStatus | failed ⓘ |
| missionType |
remote sensing technology validation
ⓘ
technology demonstration ⓘ |
| operator |
Indian Space Research Organisation
ⓘ
surface form:
ISRO
Indian Space Research Organisation ⓘ |
| orbitRegime | Low Earth orbit (planned) ⓘ |
| precededBy | IRS-1B NERFINISHED ⓘ |
| primaryMissionObjective |
to serve as an early payload for PSLV qualification
ⓘ
to test and validate PSLV launch vehicle capabilities ⓘ |
| purpose | to qualify PSLV for operational IRS missions ⓘ |
| spacecraftBus | IRS-1 bus NERFINISHED ⓘ |
| spacecraftStatus | destroyed during launch ⓘ |
| spaceProgram |
IRS programme
ⓘ
Indian Remote Sensing programme NERFINISHED ⓘ |
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-1E Description of subject: IRS-1E was an experimental Indian remote sensing satellite launched as an early payload to test and validate the capabilities of the PSLV launch vehicle.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.