SRTM
E920081
SRTM (Shuttle Radar Topography Mission) was a Space Shuttle Endeavour mission that used radar interferometry to create one of the most detailed near-global digital elevation models of Earth’s land surface.
All labels observed (3)
How this entity was disambiguated
This entity first appeared as the object of triple T11346413 — 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: SRTM Context triple: [STS-99, acronym, SRTM]
-
A.
MCD-5
MCD-5 is a planned line of the Moscow Central Diameters commuter rail system intended to provide cross-city rail connectivity across Moscow and its surrounding region.
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B.
USGS topographic maps
USGS topographic maps are detailed, large-scale representations of the Earth's surface produced by the U.S. Geological Survey, showing natural and man-made features with contour lines to depict elevation and terrain.
-
C.
DEM
DEM is the former official currency code for the Deutsche Mark, which was Germany’s national currency before the adoption of the euro.
-
D.
Global 30 Project
The Global 30 Project was a Japanese government initiative aimed at promoting the internationalization of selected universities by expanding English-taught degree programs and attracting more international students.
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E.
S-102 Bathymetric Surface product specification
The S-102 Bathymetric Surface product specification is an IHO standard defining high-resolution gridded bathymetric data for use in modern electronic navigation and marine geospatial applications.
- 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: SRTM Target entity description: SRTM (Shuttle Radar Topography Mission) was a Space Shuttle Endeavour mission that used radar interferometry to create one of the most detailed near-global digital elevation models of Earth’s land surface.
-
A.
MCD-5
MCD-5 is a planned line of the Moscow Central Diameters commuter rail system intended to provide cross-city rail connectivity across Moscow and its surrounding region.
-
B.
USGS topographic maps
USGS topographic maps are detailed, large-scale representations of the Earth's surface produced by the U.S. Geological Survey, showing natural and man-made features with contour lines to depict elevation and terrain.
-
C.
DEM
DEM is the former official currency code for the Deutsche Mark, which was Germany’s national currency before the adoption of the euro.
-
D.
Global 30 Project
The Global 30 Project was a Japanese government initiative aimed at promoting the internationalization of selected universities by expanding English-taught degree programs and attracting more international students.
-
E.
S-102 Bathymetric Surface product specification
The S-102 Bathymetric Surface product specification is an IHO standard defining high-resolution gridded bathymetric data for use in modern electronic navigation and marine geospatial applications.
- F. None of above. chosen
Statements (55)
| Predicate | Object |
|---|---|
| instanceOf |
Earth observation mission
ⓘ
radar mapping mission ⓘ space mission ⓘ |
| abbreviationFor | Shuttle Radar Topography Mission ⓘ |
| collaboratingAgency |
ASI
ⓘ
DLR ⓘ
linked to:
German Aerospace Center (DLR)
NGA ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| coverage | near-global land surface ⓘ |
| dataFormat | raster grid ⓘ |
| dataPolicy | publicly available ⓘ |
| dataProduct |
SRTM DEM
ⓘ
linked to:
SRTM
digital elevation model ⓘ |
| dataRelease |
SRTM1
ⓘ
SRTM3 ⓘ
linked to:
SRTM
|
| fullName |
Shuttle Radar Topography Mission
ⓘ
linked to:
Shuttle Imaging Radar-B
|
| horizontalResolution |
1 arc-second
ⓘ
3 arc-seconds ⓘ approximately 30 meters ⓘ |
| hostedBy |
NASA Earthdata
ⓘ
USGS ⓘ
linked to:
United States Geological Survey
|
| hostMission | STS-99 ⓘ |
| inclination | 57 degrees ⓘ |
| instrumentType | radar interferometer ⓘ |
| landingDate | 2000-02-22 ⓘ |
| latitudeCoverage | 60°N to 56°S ⓘ |
| launchDate | 2000-02-11 ⓘ |
| launchPad |
Launch Complex 39A
ⓘ
linked to:
Kennedy Space Center Launch Complex 39A
|
| launchSite | Kennedy Space Center ⓘ |
| missionDesignation | STS-99 ⓘ |
| missionDuration | 11 days ⓘ |
| notableFor | creating one of the most detailed near-global elevation models of Earth ⓘ |
| operator | NASA ⓘ |
| orbitType | low Earth orbit ⓘ |
| primaryInstrument | interferometric synthetic aperture radar ⓘ |
| primaryObjective | to acquire near-global digital elevation data of Earth ⓘ |
| radarFrequencyBand |
C-band
ⓘ
X-band ⓘ |
| relatedConcept |
digital elevation model
ⓘ
interferometric synthetic aperture radar ⓘ |
| relatedMission |
TanDEM-X
ⓘ
linked to:
TerraSAR-X satellite
TerraSAR-X ⓘ
linked to:
TerraSAR-X satellite
|
| repeatCoverage | single-pass interferometry ⓘ |
| spaceAgency | NASA ⓘ |
| spacecraft | Space Shuttle Endeavour ⓘ |
| spaceShuttleOrbiter | Endeavour ⓘ |
| technique | single-pass radar interferometry ⓘ |
| timePeriod | early 21st century ⓘ |
| usedFor |
environmental monitoring
ⓘ
flood risk assessment ⓘ geomorphological studies ⓘ hydrological modeling ⓘ infrastructure planning ⓘ topographic mapping ⓘ |
| verticalAccuracy | on the order of 10 meters ⓘ |
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: SRTM Description of subject: SRTM (Shuttle Radar Topography Mission) was a Space Shuttle Endeavour mission that used radar interferometry to create one of the most detailed near-global digital elevation models of Earth’s land surface.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: SRTM
linked to: SRTM