Landsat satellites
E88905
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.
All labels observed (11)
| Label | Occurrences |
|---|---|
| Landsat program | 9 |
| Landsat 1 | 4 |
| Landsat satellites canonical | 3 |
| Earth Resources Technology Satellite program | 2 |
| Landsat 2 | 1 |
| Landsat 3 | 1 |
| Landsat 8 | 1 |
| Landsat 9 | 1 |
| Landsat imagery | 1 |
| Landsat missions | 1 |
| Landsat satellites (NASA contributions) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T747355 — 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 satellites Context triple: [Goddard Space Flight Center, developed, Landsat satellites]
-
A.
ALOS Earth observation satellites
ALOS Earth observation satellites are Japanese remote-sensing spacecraft designed to collect high-resolution imagery and data for mapping, disaster monitoring, and environmental observation.
-
B.
Himawari meteorological satellites
The Himawari meteorological satellites are a series of Japanese geostationary weather satellites that provide continuous, high-resolution monitoring of weather and environmental conditions over the Asia-Pacific region.
-
C.
Deep Space Climate Observatory
The Deep Space Climate Observatory (DSCOVR) is a NOAA and NASA satellite positioned at the Sun–Earth L1 Lagrange point that continuously monitors solar wind conditions and provides real-time space weather and Earth observation data.
-
D.
Geostationary Operational Environmental Satellite program
The Geostationary Operational Environmental Satellite (GOES) program is a series of U.S. weather satellites in geostationary orbit that provide continuous monitoring of atmospheric, oceanic, and environmental conditions for forecasting and research.
-
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: Landsat satellites Target entity description: 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.
-
A.
ALOS Earth observation satellites
ALOS Earth observation satellites are Japanese remote-sensing spacecraft designed to collect high-resolution imagery and data for mapping, disaster monitoring, and environmental observation.
-
B.
Himawari meteorological satellites
The Himawari meteorological satellites are a series of Japanese geostationary weather satellites that provide continuous, high-resolution monitoring of weather and environmental conditions over the Asia-Pacific region.
-
C.
Deep Space Climate Observatory
The Deep Space Climate Observatory (DSCOVR) is a NOAA and NASA satellite positioned at the Sun–Earth L1 Lagrange point that continuously monitors solar wind conditions and provides real-time space weather and Earth observation data.
-
D.
Geostationary Operational Environmental Satellite program
The Geostationary Operational Environmental Satellite (GOES) program is a series of U.S. weather satellites in geostationary orbit that provide continuous monitoring of atmospheric, oceanic, and environmental conditions for forecasting and research.
-
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 (56)
| Predicate | Object |
|---|---|
| instanceOf |
Earth observation satellite series
ⓘ
remote sensing platform ⓘ |
| alsoKnownAs | ERTS program ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| dataDistributedVia |
Amazon Web Services Open Data
ⓘ
USGS EarthExplorer ⓘ USGS GloVis ⓘ |
| dataManagedBy | United States Geological Survey ⓘ |
| dataPolicy | free and open access ⓘ |
| firstLaunchDate | 1972-07-23 ⓘ |
| firstSatellite |
Landsat satellites
self-linksurface differs
ⓘ
surface form:
Landsat 1
|
| hasGlobalCoverage | yes ⓘ |
| hasImagingType |
multispectral imagery
ⓘ
thermal infrared imagery ⓘ |
| hasMember |
Landsat satellites
self-linksurface differs
ⓘ
surface form:
Landsat 1
Landsat satellites self-linksurface differs ⓘ
surface form:
Landsat 2
Landsat satellites self-linksurface differs ⓘ
surface form:
Landsat 3
Landsat 4 ⓘ Landsat 5 ⓘ Landsat 6 ⓘ Landsat 7 ⓘ Landsat satellites self-linksurface differs ⓘ
surface form:
Landsat 8
Landsat 9 ⓘ |
| hasOrbitType |
Sun-synchronous orbit
ⓘ
near-polar orbit ⓘ |
| hasPurpose |
Earth observation
ⓘ
agricultural monitoring ⓘ climate change research ⓘ disaster monitoring ⓘ environmental monitoring ⓘ forest monitoring ⓘ land-use mapping ⓘ resource management ⓘ water resources monitoring ⓘ |
| hasRevisitTime | 16 days ⓘ |
| hasSpatialResolution | 30 meters ⓘ |
| hasSpatialResolutionRange | 15–120 meters ⓘ |
| hasSwathWidth | about 185 kilometers ⓘ |
| Landsat 5:missionDuration | 1984–2013 ⓘ |
| Landsat 7:launchDate | 1999-04-15 ⓘ |
| Landsat 8:launchDate | 2013-02-11 ⓘ |
| Landsat 8:primaryInstruments |
Operational Land Imager
ⓘ
Thermal Infrared Sensor ⓘ |
| Landsat 9:launchDate | 2021-09-27 ⓘ |
| Landsat 9:primaryInstruments |
Operational Land Imager
ⓘ
surface form:
Operational Land Imager 2
Thermal Infrared Sensor ⓘ
surface form:
Thermal Infrared Sensor 2
|
| longestOperatingSatellite | Landsat 5 ⓘ |
| operatedBy |
NASA
ⓘ
United States Geological Survey ⓘ |
| originalName |
Landsat satellites
self-linksurface differs
ⓘ
surface form:
Earth Resources Technology Satellite program
|
| startOfProgram | 1972 ⓘ |
| typicalLocalOverpassTime | approximately 10:00 a.m. local time ⓘ |
| usedBy |
commercial organizations
ⓘ
governments ⓘ non-governmental organizations ⓘ scientists ⓘ |
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 satellites Description of subject: 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.
Referenced by (25)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Landsat 9
this entity surface form:
Landsat program
this entity surface form:
Landsat 1
this entity surface form:
Landsat satellites (NASA contributions)
this entity surface form:
Landsat 1
this entity surface form:
Landsat 2
this entity surface form:
Landsat 3
this entity surface form:
Landsat 8
this entity surface form:
Earth Resources Technology Satellite program
this entity surface form:
Landsat 1
this entity surface form:
Landsat program
this entity surface form:
Landsat imagery
this entity surface form:
Landsat missions
this entity surface form:
Earth Resources Technology Satellite program
this entity surface form:
Landsat program
subject surface form:
ERTS-1
this entity surface form:
Landsat 1
this entity surface form:
Landsat program