The Ozone Mapping and Profiler Suite (OMPS) tracks the health of Earth's ozone layer and measures the concentration of atmospheric ozone and aerosols. OMPS consists of three spectrometers: a downward-looking nadir mapper, a nadir profiler, and a limb profiler. OMPS collects total column and vertical profile ozone data, and it continues the daily global data record started by previous ozone monitoring systems—the Solar Backscatter Ultraviolet Radiometer (SBUV/2) and Total Ozone Mapping Spectrometer (TOMS)—but with higher fidelity and larger swaths. 

The first OMPS was launched aboard Suomi NPP in October 2011. A second OMPS was launched in November 2017 aboard the NOAA-20/JPSS-1 satellite, and began providing data in January 2018, but did not include a limb profiler. A third OMPS was launched in November 2022 aboard the NOAA-21/JPSS-2 satellite and began providing data in February 2023.