NOAA-21
E735409
NOAA-21 is a U.S. polar-orbiting weather and environmental satellite in the Joint Polar Satellite System, providing advanced atmospheric, oceanic, and climate observations for forecasting and research.
All labels observed (2)
| Label | Occurrences |
|---|---|
| NOAA-21 canonical | 9 |
| NOAA-21 satellite | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8378511 — 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: NOAA-21 Context triple: [JPSS, includesSatellite, NOAA-21]
-
A.
NOAA-20
NOAA-20 is a U.S. polar-orbiting weather and environmental satellite operated by NOAA that provides critical data for global weather forecasting and climate monitoring.
-
B.
Aqua satellite
Aqua is a NASA Earth observation satellite focused on studying the planet’s water cycle, including oceans, atmosphere, and ice.
-
C.
Oceansat-2
Oceansat-2 is an Indian Earth observation satellite designed primarily for oceanographic and atmospheric studies, including monitoring ocean color, surface winds, and coastal zones.
-
D.
Oceansat-3
Oceansat-3 is an Indian Earth observation satellite designed to monitor ocean color, surface winds, and other marine and coastal parameters for applications in fisheries, coastal management, and climate studies.
-
E.
Oceansat-1
Oceansat-1 is an Indian remote sensing satellite dedicated to oceanographic and atmospheric studies, including monitoring ocean color, surface winds, and related marine resources.
- 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: NOAA-21 Target entity description: NOAA-21 is a U.S. polar-orbiting weather and environmental satellite in the Joint Polar Satellite System, providing advanced atmospheric, oceanic, and climate observations for forecasting and research.
-
A.
NOAA-20
NOAA-20 is a U.S. polar-orbiting weather and environmental satellite operated by NOAA that provides critical data for global weather forecasting and climate monitoring.
-
B.
Aqua satellite
Aqua is a NASA Earth observation satellite focused on studying the planet’s water cycle, including oceans, atmosphere, and ice.
-
C.
Oceansat-2
Oceansat-2 is an Indian Earth observation satellite designed primarily for oceanographic and atmospheric studies, including monitoring ocean color, surface winds, and coastal zones.
-
D.
Oceansat-3
Oceansat-3 is an Indian Earth observation satellite designed to monitor ocean color, surface winds, and other marine and coastal parameters for applications in fisheries, coastal management, and climate studies.
-
E.
Oceansat-1
Oceansat-1 is an Indian remote sensing satellite dedicated to oceanographic and atmospheric studies, including monitoring ocean color, surface winds, and related marine resources.
- F. None of above. chosen
Statements (60)
| Predicate | Object |
|---|---|
| instanceOf |
environmental satellite
ⓘ
polar-orbiting satellite ⓘ weather satellite ⓘ |
| alsoKnownAs | JPSS-2 ⓘ |
| bus | Ball Configurable Platform ⓘ |
| COSPARId | 2022-150A ⓘ |
| countryOfOperator |
United States
ⓘ
linked to:
United States of America
|
| dataUser |
National Weather Service
ⓘ
international meteorological agencies ⓘ |
| inclination | 98.7 degrees ⓘ |
| instrument |
ATMS
ⓘ
Advanced Technology Microwave Sounder ⓘ CERES ⓘ Clouds and the Earth’s Radiant Energy System ⓘ CrIS ⓘ Cross-track Infrared Sounder ⓘ OMPS ⓘ Ozone Mapping and Profiler Suite ⓘ SARSAT payload ⓘ Search and Rescue Satellite Aided Tracking payload ⓘ VIIRS ⓘ
linked to:
Visible Infrared Imaging Radiometer Suite
Visible Infrared Imaging Radiometer Suite ⓘ |
| launchContractor | United Launch Alliance ⓘ |
| launchDate | 2022-11-10 ⓘ |
| launchSite |
Space Launch Complex 3E
ⓘ
linked to:
Space Launch Complex 3
Vandenberg Space Force Base ⓘ |
| launchVehicle | Atlas V 401 ⓘ |
| localTimeOfDescendingNode | 13:30 ⓘ |
| missionType |
climate monitoring
ⓘ
environmental monitoring ⓘ meteorology ⓘ operational weather forecasting support ⓘ |
| NORADId | 54234 ⓘ |
| operator |
NOAA
ⓘ
National Oceanic and Atmospheric Administration ⓘ |
| orbitRegime | low Earth orbit ⓘ |
| orbitType | Sun-synchronous orbit ⓘ |
| partOfConstellation |
Joint Polar Satellite System constellation
ⓘ
linked to:
Joint Polar Satellite System
|
| predecessor | NOAA-20 ⓘ |
| primaryMission |
atmospheric sounding
ⓘ
climate data record generation ⓘ global numerical weather prediction support ⓘ ocean and land surface monitoring ⓘ |
| program |
JPSS
ⓘ
Joint Polar Satellite System ⓘ |
| providesObservationOf |
aerosols
ⓘ
atmosphere ⓘ cloud properties ⓘ cryosphere ⓘ land surfaces ⓘ oceans ⓘ ozone distribution ⓘ sea ice ⓘ sea surface temperature ⓘ |
| renamedAfterLaunch | NOAA-21 ⓘ |
| spaceAgencyPartner | NASA ⓘ |
| spacecraftManufacturer | Ball Aerospace ⓘ |
| supportsService |
climate research
ⓘ
environmental hazard monitoring ⓘ medium-range weather forecasting ⓘ |
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: NOAA-21 Description of subject: NOAA-21 is a U.S. polar-orbiting weather and environmental satellite in the Joint Polar Satellite System, providing advanced atmospheric, oceanic, and climate observations for forecasting and research.
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.