THE CEOS DATABASE : Missions, Instruments and Measurements
CEOS EO HANDBOOK – INSTRUMENT SUMMARY - MAESTRO -
Full Name Measurements of Aerosol Extinction in the Stratosphere and Troposphere Retrieved by Occultation Status Operational
Instrument Agencies CSA Maturity
Instrument Type Atmospheric chemistry Geometry Occultation
Instrument Technology Limb-scanning SW spectrometer Sampling Sounding
Data Access Open Access Data Format
Measurements and Applications Chemical processes involved in the depletion of the ozone layer.
Resolution Summary Approx 1 - 2 km vertical
Swath Summary
Accuracy Summary
Waveband Summary UV - NIR: 0.285 - 1.03 µm (1 - 2 nm spectral resolution)
UV (~0.01 µm - ~0.40 µm)
VIS (~0.40 µm - ~0.75 µm)
NIR (~0.75 µm - ~1.3 µm)
Instrument Measurements
CategoryParameterAccuracy
AerosolsAerosol Extinction / Backscatter (column/profile) 
Atmospheric Humidity FieldsAtmospheric specific humidity (HT, LS) 
Cloud particle properties and profileCloud liquid water (column/profile) 
OzoneOzone profile 
Trace gases (excluding ozone)Atmospheric Chemistry - NO2 (HT, LS) 
Instrument Missions
SCISAT-1 - SCISAT-I/ACE (2003 - 2015)
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