Sentinel-4
Sign in to saveAlso known as Sentinel 4, Ultraviolet, Visible and Near-Infrared Sounder, UVS
Sentinel-4 is a series of European Earth observation missions supporting the EU Copernicus Programme. It is the first project to monitor European air quality from geostationary orbit. Sentinel-4 focuses on monitoring of trace gas concentrations and aerosols in the atmosphere to support air-quality near-real time applications, air-quality monitoring, and climate monitoring – specifically with a short revisit period over Europe.
~10 min read
Encyclopedic overview
12 sectionsContents
- Background
- Mission objectives
- Satellite platform
- Meteosat Third Generation (MTG)
- Meteosat Third Generation Sounder (MTG-S) Satellite
- Instruments on MTG-S
- Sentinel 4 instrument
- Other instrument on the same satellite
- Infra-Red Sounder (IRS)
- See also
- References
- Links
Sentinel-4 is a series of European Earth observation missions supporting the EU Copernicus Programme. It is the first project to monitor European air quality from geostationary orbit. Sentinel-4 focuses on monitoring of trace gas concentrations and aerosols in the atmosphere to support air-quality near-real time applications, air-quality monitoring, and climate monitoring – specifically with a short revisit period over Europe.
Sentinel-4s are not standalone satellites, but a type of instrument (ultraviolet, visible, and near-infrared imaging spectrometer) mounted on satellites of the MTG-S series of the Meteosat programme in a two-missions-one-satellite approach. The first Sentinel-4 mission (Sentinel-4A) launched in July 2025 aboard the MTG-S1 satellite on Falcon 9.
Excerpted from Wikipedia’s “Sentinel-4” article, available under the CC BY-SA 4.0 licence.