CEOS EO HANDBOOK – INSTRUMENT SUMMARY - Nadir Imager -
Full Name Nadir Imager Status Operational
Instrument Agencies SNSA Maturity
Instrument Type Imaging multi-spectral radiometers (vis/IR) Geometry Nadir-viewing
Instrument Technology Limb-scanning IR spectrometer Sampling
Data Access Data Format
Measurements and Applications Takes pictures of atmospheric band emissions from below the satellite. This provides complementary information on smaller spatial scales, albeit restricted to a single spectral channel. Because of the nadir instruments susceptibility to the background light of the lower atmosphere, the nadir imaging will be restricted to the night-side of the terminator. The nadir instrument is basically a wide-angle camera.
Resolution Summary 10km
[Best Resolution: 10000m]
Swath Summary 300 km
[Max Swath: 300 km]
Accuracy Summary
Waveband Summary
VIS (~0.40 µm - ~0.75 µm)
Instrument Measurements
Measurements Overview
CategoryParameter
Atmospheric WindsWind profile (vertical)
Multi-purpose imagery (land)Land surface imagery
Instrument Missions
MATS - Mesospheric Airglow/Aerosol Tomography and Spectroscopy (2022 - 2024)