| Instrument | Status/
Accuracy | Instrument Description | Measurement Technology | Timeline |
UVNS (Sentinel-5 precursor)
TROPOMI | Operational
| Supporting atmospheric composition and air quality monitoring services. | n/a |  |
Spectrometer (TEMPO)
Spectrometer (TEMPO) | Being developed
| Hourly measurements of air pollution over North America, from Mexico City to the Canadian oil sands, at high spatial resolution. Measurements in ultraviolet and visible wavelengths will provide a suite of products including the key elements of tropospheric air pollution chemistry. Will be part of the first global geostationary constellation for pollution monitoring, along with European and Korean missions now in development. | n/a | |
UVAS
UVAS (Ultraviolet Visible and near-infrared Atmospheric Sounder) | Being developed
| High spatial resolution observations of air quality and climate gases such as ozone (O3), nitrogen dioxide (NO2), sulphur dioxide (SO2), formaldehyde (HCHO) glyoxal (CHO-CHO), and aerosols over selected zones of interest (urban and industrialized areas, mayor motorways, and special events like forest fires, volcano eruption and sand storms). Also measurements of halogenated compounds will be performed, including bromine monoxide (BrO) and iodine monoxide (IO). | n/a | |
UVNS (Sentinel-5)
Ultra-violet Visible Near-infrared Shortwave-infrared spectrometer | Being developed
| Supporting atmospheric composition and air quality monitoring services. Measurements of atmospheric trace gases, primarily O3, NO2, SO2, HCHO, CH4 and CO. | n/a | |
UVN
UV-VIS-NIR Sounder | Approved
| Measurements of atmospheric trace gases, mainly O3, NO2, SO2, H2CO. The product list is not yet approved, the accuracy summary column lists the breakthrough user requirements. | n/a | |
UV Spectrometer (GACM)
UV Spectrometer (GACM) | Proposed
| Daytime measurements of O3, NO2, SO2, CH2O, and aerosols. | n/a | |
UV/Vis Near IR Wide Imaging Spectrometer (Geo-Cape)
UV/Vis Near IR Wide Imaging Spectrometer (Geo-Cape) | Proposed
| Measures natural and human-produced gases and aerosols in the atmosphere, including those that react in sunlight to form polluting low-level ozone. | n/a | |
UVN (Sentinel-4)
UV-visible- near infrared imaging spectrometer (Sentinel-4) | Proposed
| Supporting atmospheric composition and air quality monitoring services. | n/a | |