EO·Atlas
Microwave Radiometer (MWR)
Compiled from public sources on 2026-06-16. Not independently verified by Thales Alenia Space.
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Microwave radiometer flown on Sentinel-3.
MWR is the Sentinel-3 nadir-viewing passive microwave radiometer that supports SRAL radar-altimeter measurements by correcting for atmospheric water vapour.[1] It has two channels, 23.8 and 36.5 GHz, aligned with water-vapour and cloud-liquid-water sensitivity in the altimetry correction workflow.[1][2] The instrument performs passive microwave radiometry, demonstrated on Sentinel-3A.[1] EUMETSAT uses Sentinel-3 altimetry Level-2 processing with microwave-radiometer correction information for sea-surface-height and related ocean-altimetry products.[3]
Pricing not publicly listed by operator
Compositional position
- Multi-frequency microwave imaging radiometryvia Sentinel-3B
MWR demonstrates passive microwave radiometry for altimetry wet-tropospheric correction on Sentinel-3B.
None on record.
- [1]WMO OSCAR instrument record: MWR (Sentinel-3)agency doc2026-06-16
- [2]NASA Earthdata instrument page: Sentinel-3 MWRagency doc2026-06-16
- [3]EUMETSAT Sentinel-3 altimetry level 2 data guideagency doc2026-06-16