Landsat 5
E408046
Landsat 5 was a long-lived Earth observation satellite that provided decades of multispectral imagery for environmental monitoring and land-use analysis.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Landsat 5 canonical | 4 |
| Landsat 1-5 MSS | 1 |
| Multispectral Scanner | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3918673 — 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: Landsat 5 Context triple: [Landsat satellites, hasMember, Landsat 5]
-
A.
Landsat 4
Landsat 4 was an Earth observation satellite in the Landsat program that significantly improved global land imaging with enhanced sensors and higher-resolution data.
-
B.
Terra satellite
Terra is a flagship NASA Earth observation satellite that carries multiple instruments to monitor the planet’s climate, land, oceans, and atmosphere from polar orbit.
-
C.
Landsat satellites
Landsat satellites are a series of Earth-observing spacecraft that provide long-term, continuous multispectral imagery used worldwide for environmental monitoring, land-use mapping, and resource management.
-
D.
Landsat 9
Landsat 9 is a NASA and USGS Earth observation satellite that continues the decades-long Landsat program by collecting high-resolution multispectral imagery to monitor and study changes on the planet’s surface.
-
E.
Operational Land Imager
The Operational Land Imager is a multispectral imaging sensor on Landsat 8 designed to capture high-resolution, calibrated images of Earth’s land surfaces for environmental monitoring and land-use analysis.
- 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: Landsat 5 Target entity description: Landsat 5 was a long-lived Earth observation satellite that provided decades of multispectral imagery for environmental monitoring and land-use analysis.
-
A.
Landsat 4
Landsat 4 was an Earth observation satellite in the Landsat program that significantly improved global land imaging with enhanced sensors and higher-resolution data.
-
B.
Terra satellite
Terra is a flagship NASA Earth observation satellite that carries multiple instruments to monitor the planet’s climate, land, oceans, and atmosphere from polar orbit.
-
C.
Landsat satellites
Landsat satellites are a series of Earth-observing spacecraft that provide long-term, continuous multispectral imagery used worldwide for environmental monitoring, land-use mapping, and resource management.
-
D.
Landsat 9
Landsat 9 is a NASA and USGS Earth observation satellite that continues the decades-long Landsat program by collecting high-resolution multispectral imagery to monitor and study changes on the planet’s surface.
-
E.
Operational Land Imager
The Operational Land Imager is a multispectral imaging sensor on Landsat 8 designed to capture high-resolution, calibrated images of Earth’s land surfaces for environmental monitoring and land-use analysis.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
Earth observation satellite
ⓘ
Landsat program satellite ⓘ artificial satellite ⓘ remote sensing satellite ⓘ |
| countryOfOperator | United States of America ⓘ |
| dataPolicy | free and open data (later years) ⓘ |
| dataType | multispectral imagery ⓘ |
| dataUse |
agricultural monitoring
ⓘ
deforestation monitoring ⓘ disaster assessment ⓘ environmental monitoring ⓘ land-cover change detection ⓘ land-use analysis ⓘ urban expansion mapping ⓘ water resources assessment ⓘ |
| deactivationDate | 2013-06-05 ⓘ |
| imageArchive |
USGS Landsat archive
ⓘ
linked to:
USGS EarthExplorer
|
| inclination | 98.2 degrees ⓘ |
| instrument |
Multispectral Scanner
ⓘ
linked to:
Landsat 3
Thematic Mapper ⓘ
linked to:
Landsat 4-5 TM
|
| launchDate | 1984-03-01 ⓘ |
| launchSite |
Space Launch Complex 2W
ⓘ
linked to:
Space Launch Complex 2
Vandenberg Air Force Base ⓘ
linked to:
Vandenberg Space Force Base
|
| launchVehicle | Delta 3920 ⓘ |
| localTimeOfDescendingNode | 09:45 ⓘ |
| manufacturer | Hughes Aircraft Company ⓘ |
| massAtLaunch | about 1950 kilograms ⓘ |
| missionDurationAchieved | over 28 years ⓘ |
| missionDurationPlanned | 3 years ⓘ |
| missionType | Earth observation ⓘ |
| notableFor | longest-operating Earth observation satellite at the time of retirement ⓘ |
| operator |
NASA
ⓘ
United States Geological Survey ⓘ |
| orbitalPeriod | about 99 minutes ⓘ |
| orbitRegime | low Earth orbit ⓘ |
| orbitType | Sun-synchronous orbit ⓘ |
| predecessor | Landsat 4 ⓘ |
| primaryInstrument |
Thematic Mapper
ⓘ
linked to:
Landsat 4-5 TM
|
| program |
Landsat program
ⓘ
linked to:
Landsat satellites
|
| repeatCycle | 16 days ⓘ |
| retirementDate | 2013-06-05 ⓘ |
| spacecraftBus | Multimission Modular Spacecraft ⓘ |
| spatialResolutionMultispectralScanner | 30 meters ⓘ |
| spatialResolutionThematicMapper | 30 meters ⓘ |
| spatialResolutionThermalBand | 120 meters ⓘ |
| spectralBandsMultispectralScanner | 4 ⓘ |
| spectralBandsThematicMapper | 7 ⓘ |
| status | retired ⓘ |
| successor |
Landsat 7
ⓘ
Landsat 8 ⓘ |
| swathWidth | 185 kilometers ⓘ |
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: Landsat 5 Description of subject: Landsat 5 was a long-lived Earth observation satellite that provided decades of multispectral imagery for environmental monitoring and land-use analysis.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Landsat 5
linked to: Landsat 5