ASTER
E416925
ASTER is a high-resolution imaging spectroradiometer aboard NASA’s Terra satellite used to map and monitor Earth’s surface features and environmental changes.
All labels observed (1)
| Label | Occurrences |
|---|---|
| ASTER canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T4151916 — 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: ASTER Context triple: [Terra, instrument, ASTER]
-
A.
Aura satellite
Aura is a NASA Earth-observing satellite dedicated to studying the planet’s atmosphere, particularly air quality, ozone layer dynamics, and climate-related atmospheric changes.
-
B.
ASTRO
ASTRO is the leading professional organization in the United States for radiation oncologists and other specialists involved in radiation therapy for cancer and other diseases.
-
C.
ACE spacecraft
The ACE spacecraft is a NASA satellite positioned at the L1 Lagrange point that continuously monitors the solar wind and interplanetary magnetic field to provide early warnings of space weather events affecting Earth.
-
D.
ASTP
ASTP is the commonly used acronym for the Apollo–Soyuz Test Project, the 1975 joint U.S.–Soviet space mission that marked the first international crewed spaceflight and a symbolic easing of Cold War tensions.
-
E.
STS
STS is the standard mission designation prefix used for NASA’s Space Shuttle flights, standing for Space Transportation System.
- 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: ASTER Target entity description: ASTER is a high-resolution imaging spectroradiometer aboard NASA’s Terra satellite used to map and monitor Earth’s surface features and environmental changes.
-
A.
Aura satellite
Aura is a NASA Earth-observing satellite dedicated to studying the planet’s atmosphere, particularly air quality, ozone layer dynamics, and climate-related atmospheric changes.
-
B.
ASTRO
ASTRO is the leading professional organization in the United States for radiation oncologists and other specialists involved in radiation therapy for cancer and other diseases.
-
C.
ACE spacecraft
The ACE spacecraft is a NASA satellite positioned at the L1 Lagrange point that continuously monitors the solar wind and interplanetary magnetic field to provide early warnings of space weather events affecting Earth.
-
D.
ASTP
ASTP is the commonly used acronym for the Apollo–Soyuz Test Project, the 1975 joint U.S.–Soviet space mission that marked the first international crewed spaceflight and a symbolic easing of Cold War tensions.
-
E.
STS
STS is the standard mission designation prefix used for NASA’s Space Shuttle flights, standing for Space Transportation System.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Earth observation instrument
ⓘ
imaging spectroradiometer ⓘ remote sensing instrument ⓘ |
| aboard | Terra ⓘ |
| acronymFor | Advanced Spaceborne Thermal Emission and Reflection Radiometer ⓘ |
| application |
disaster assessment
ⓘ
glacier and snow monitoring ⓘ land use and land cover mapping ⓘ mineral exploration ⓘ urban heat island studies ⓘ volcano monitoring ⓘ |
| contributingAgency | Japan Space Systems ⓘ |
| dataPolicy | free and open access via NASA data portals ⓘ |
| dataProduct |
digital elevation model
ⓘ
emissivity ⓘ land surface temperature ⓘ surface reflectance ⓘ |
| dataUserCommunity |
climatologists
ⓘ
ecologists ⓘ geologists ⓘ natural resource managers ⓘ |
| designLife | 5 years ⓘ |
| fullName | Advanced Spaceborne Thermal Emission and Reflection Radiometer ⓘ |
| launchDate | 1999-12-18 ⓘ |
| launchSite | Vandenberg Air Force Base NERFINISHED ⓘ |
| launchVehicle |
Atlas II
ⓘ
surface form:
Atlas IIAS
|
| localEquatorCrossingTime | 10:30 am descending node ⓘ |
| missionType | Earth observation ⓘ |
| numberOfSpectralBands | 14 ⓘ |
| operator |
Ministry of Economy, Trade and Industry
ⓘ
surface form:
Japan Ministry of Economy, Trade and Industry
METI ⓘ NASA ⓘ |
| orbitType | Sun-synchronous ⓘ |
| platformProgram | NASA Earth Observing System ⓘ |
| primaryPurpose |
land surface temperature measurement
ⓘ
mapping Earth’s surface ⓘ monitoring environmental changes ⓘ surface composition analysis ⓘ |
| repeatCycle | 16 days ⓘ |
| spacecraft | Terra ⓘ |
| spatialResolution |
15 m (VNIR)
ⓘ
30 m (SWIR) ⓘ 90 m (TIR) ⓘ |
| spectralRange |
near infrared
ⓘ
shortwave infrared ⓘ thermal infrared ⓘ visible ⓘ |
| swathWidth | 60 km ⓘ |
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: ASTER Description of subject: ASTER is a high-resolution imaging spectroradiometer aboard NASA’s Terra satellite used to map and monitor Earth’s surface features and environmental changes.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Terra