# TROPOMI (TROPOspheric Monitoring Instrument)
*sensor . products*

Nadir-viewing UV-VIS-NIR-SWIR pushbroom imaging spectrometer aboard Sentinel-5P for daily global atmospheric composition measurements, including ozone, NO2, SO2, CO, CH4, formaldehyde, aerosols, and clouds.

## Specifications
- **product status**: operational
- **deployment context**: orbital
- **manufacturer**: airbus-ds
- **sensor**: {"instrument_family":"passive-optical","measurement_principle":"passive","spectral_range_nm":{"min":270,"max":2385},"spectral_band_count":2600,"gsd_m":{"native":3.5},"swath_km":2600,"channels":[{"name":"UV-VIS","spectral_range_nm":{"min":270,"max":495},"spectral_band_count":1200},{"name":"NIR","spectral_range_nm":{"min":710,"max":775},"spectral_band_count":600},{"name":"SWIR","spectral_range_nm":{"min":2305,"max":2385},"spectral_band_count":800}],"notes":"Near-nadir pixels are about 7 x 3.5 km for most spectral bands and about 7 x 7 km for SWIR products; gsd_m.native records the finer near-nadir dimension."}
- **entity type**: sensor
- **last verified date**: 2026-06-14
- **verified by**: agency-doc
- **claim status**: agency-sourced
- **provider**: airbus-ds
- **attributes**: {"kind":"sensor","product_status":"operational","deployment_context":"orbital","manufacturer":"airbus-ds","description":"Nadir-viewing UV-VIS-NIR-SWIR pushbroom imaging spectrometer aboard Sentinel-5P for daily global atmospheric composition measurements, including ozone, NO2, SO2, CO, CH4, formaldehyde, aerosols, and clouds.","sensor":"{\"instrument_family\":\"passive-optical\",\"measurement_principle\":\"passive\",\"spectral_range_nm\":{\"min\":270,\"max\":2385},\"spectral_band_count\":2600,\"gsd_m\":{\"native\":3.5},\"swath_km\":2600,\"channels\":[{\"name\":\"UV-VIS\",\"spectral_range_nm\":{\"min\":270,\"max\":495},\"spectral_band_count\":1200},{\"name\":\"NIR\",\"spectral_range_nm\":{\"min\":710,\"max\":775},\"spectral_band_count\":600},{\"name\":\"SWIR\",\"spectral_range_nm\":{\"min\":2305,\"max\":2385},\"spectral_band_count\":800}],\"notes\":\"Near-nadir pixels are about 7 x 3.5 km for most spectral bands and about 7 x 7 km for SWIR products; gsd_m.native records the finer near-nadir dimension.\"}"}
- **technology**: optical-spectral-sensing
- **relevance**: in-scope

## Editorial
TROPOMI is the TROPOspheric Monitoring Instrument flown on Sentinel-5P for daily global atmospheric composition observations [^wmo-tropomi][^nasa-earthdata-tropomi]. It is a nadir-viewing passive optical pushbroom imaging spectrometer spanning ultraviolet, visible, near-infrared, and shortwave-infrared wavelengths from 270 to 2385 nm [^wmo-tropomi][^nasa-earthdata-tropomi]. The instrument separates its measurements into UV-VIS, NIR, and SWIR channels, with about 2600 spectral samples across the combined system [^wmo-tropomi].

For buyers evaluating atmospheric trace-gas coverage, TROPOMI is built around broad daily daylight mapping rather than narrow tasking. Its pushbroom swath is about 2600 km, supporting daily global coverage from the Sentinel-5P orbit [^wmo-tropomi][^nasa-earthdata-tropomi]. Near nadir, non-SWIR products are sampled at about 7 x 3.5 km, while SWIR products are about 7 x 7 km [^wmo-tropomi]. The measurement set supports ozone, nitrogen dioxide, sulphur dioxide, carbon monoxide, methane, formaldehyde, aerosol, and cloud products [^nasa-earthdata-tropomi][^tropomi-official].

The instrument was designed and built by Airbus Netherlands, TNO, and SRON, with the catalogue manufacturer field mapped to Airbus Defence and Space for the live provider relationship [^tropomi-official]. TROPOMI is suited to users who need global atmospheric screening, emissions monitoring, and continuity with operational trace-gas products from a public Sentinel mission, with product interpretation tied to the spectral channel and ground-pixel differences between UV-VIS, NIR, and SWIR retrievals [^wmo-tropomi][^nasa-earthdata-tropomi].

## Compositional position
- sentinel-5p (missions) --[mission_payloads]--> TROPOMI (TROPOspheric Monitoring Instrument)

## Sources
- [wmo-tropomi] | WMO OSCAR instrument record: TROPOMI | https://space.oscar.wmo.int/instruments/view/tropomi | tier=agency-doc | accessed=2026-06-14
- [nasa-earthdata-tropomi] | NASA Earthdata instrument record: TROPOMI | https://www.earthdata.nasa.gov/data/instruments/tropomi | tier=agency-doc | accessed=2026-06-14
- [tropomi-official] | TROPOMI official instrument site | https://www.tropomi.eu/ | tier=operator-marketing | accessed=2026-06-14

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Source: https://eo-atlas.org/products/sensor/tropomi
Maintainer: SpectraWorks B.V. (CC-BY 4.0)