| Instrument | Status/
Accuracy | Instrument Description | Measurement Technology | Timeline |
| ACE-FTS | Operational | Measure and understand the chemical processes that control the distribution of ozone in the Earth's atmosphere, especially at high altitudes. | n/a |  |
| ATLAS | Operational | Provide date on ice sheet height and sea ice thickness, land altitude, aerosol height distributions, cloud height and boundary layer height. | n/a | |
| MAESTRO | Operational | Chemical processes involved in the depletion of the ozone layer, and now including a high quality water vapour data product. | n/a | |
| MSU-MR | Operational | Parameters of clouds, snow, ice and land cover, vegetation, surface temperature, fire detection. | n/a | |
| NACHOS Hyperspectral Imager | Operational | | n/a | |
| OCM (Oceansat-3) | Operational | Ocean colour data, Estimation of phytoplankton concentration, identification of potential fishing zones, assessment of primary productivity. | n/a | |
| OLCI | Operational | Marine and land services. | n/a | |
| OMI | Operational | Mapping of ozone columns, key air quality components (NO2, SO2, BrO, OClO and aerosols), measurements of cloud pressure and coverage, global distribution and trends in UV-B radiation. | n/a | |
| OMPS-L | Operational +/-0.25 m-1 | Measures high resolution vertical distribution of ozone and aerosols. | n/a | |
| OSIRIS | Operational | Detects aerosol layers and abundance of species such as O3, NO2, OClO, BrO and NO. Consists of spectrograph and IR imager. | n/a | |
| SAGE-III | Operational | Limb-viewing measurements of aerosol, O3, H20, NO2, OClO, NO3, temperature and pressure in the stratosphere, upper troposphere, and mesosphere using solar occultation, lunar occultation and limb scatter measurement techniques. | n/a | |
| Sounder | Operational | Atmospheric soundings and data on atmospheric stability and thermal gradient winds. | n/a | |
| SPEXone | Operational | Polarimeter for measuring aerosol optical properties, clouds and aerosol types. Multi-angle spectro-polarimetry by spectral modulation technology. Distribution and detailed micro-phyiscal properties of atmospheric aerosol. Direct and indirect aerosol radiative forcing and their impact on climate. A second instance of this instrument is in development. | n/a | |
| ACX | Being developed | | n/a | |
| AOLCI | Being developed | Visible and near-infrared hyperspectral radiometer supporting a wide range of Marine, Land, Atmosphere and Climate Services. Provides enhanced continutity of ocean colour and land colour measurements from OLCI and enhanced synergy with ASLSTR | n/a | |
| ATLID | Approved | Derivation of cloud and aerosol properties - Measurement of molecular and particle backscatter in Rayleigh, co-polar and cross-polar Mie channels. | n/a | |
| MSI (EarthCARE) | Approved | Observation of cloud properties and aerosol (aerosols to be confirmed). | n/a | |
| NIR-SWIR | Approved | Ocean Colour - Open ocean, coastal & in-land waters. Atmospheric corrections | n/a | |
| Advanced MSU-MR | Proposed | Parameters of clouds, snow, ice and land cover, vegetation, surface temperature, fire detection. | n/a | |
| ALADIN-2 | Proposed | Global wind profiles (single line-of-sight) for an improved weather prediction. | n/a | |
| HiRDLS | No longer operational | Measures atmospheric temperature, concentrations of ozone, water vapour, methane, NOx, N2O, CFCs and other minor species, aerosol concentration, location of polar stratospheric clouds and cloud tops. Currently not collecting data on Aqua. | n/a | |