THE CEOS DATABASE : Missions, Instruments and Measurements
CEOS EO HANDBOOK – INSTRUMENT SUMMARY - UV Spectrometer (GACM) -
Full Name UV Spectrometer (GACM) Status Proposed
Instrument Agencies NASA Maturity Medium Heritage
Instrument Type Atmospheric chemistry Geometry Nadir-viewing
Instrument Technology High-resolution nadir-scanning SW spectrometer Sampling Sounding
Data Access Open Access Data Format
Measurements and Applications Daytime measurements of O3, NO2, SO2, CH2O, and aerosols.
Resolution Summary
Swath Summary
Accuracy Summary
Waveband Summary 305 - 320 nm and 500 - 650 nm
UV (~0.01 µm - ~0.40 µm)
VIS (~0.40 µm - ~0.75 µm)
Instrument Measurements
CategoryParameterAccuracy
AerosolsAerosol optical depth (column/profile) 
OzoneOzone profile 
Trace gases (excluding ozone)Atmospheric Chemistry - NO2 (column/profile) 
Atmospheric Chemistry - SO2 (column/profile) 
Atmospheric Chemistry - CH2O (column/profile) 
Instrument Missions
GACM - Global Atmospheric Composition Mission (2030 - 2033)
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