BackForwardInstrument:  C&A 

Instrument details
Acronym C&A
Full name Cloud and Aerosol Instrument
Purpose To detect cloud and aerosols in the GHGSat spectrometer field of view.
Short description It measures at wavelengths between 400 and 1000 nm with a spectral resolution of 1.9 nm. It has a diffraction grating to reflect light onto a detector. The detector consists of a number of rows of pixels that each correspond to one of the beams constituent bands.
Background New development to support cloud/aerosol detection for greenhouse gas monitoring.
Scanning Technique Matches GHGSat scan
Coverage / Cycle
Mass Power Data Rate


Providing Agency GHGSat
Instrument Maturity Flown on an R&D satellite
Utilization Period: 2016 to 2030
Last update: 2022-08-01
Detailed characteristics
Satellites this instrument is flying on

Note: a red tag indicates satellites no longer operational, a green tag indicates operational satellites, a blue tag indicates future satellites

Instrument classification
  • Earth observation instrument
  • Passive optical radiometer or spectrometer
  • High resolution optical imager
WIGOS Subcomponents No WIGOS subcomponents have been defined.
Mission objectives
Primary mission objectives
  • Aerosol column burden
  • Cloud cover
Evaluation of Measurements

The following list indicates which measurements can typically be retrieved from this category of instrument. To see a full Gap Analysis by Variable, click on the respective variable.

Note: table can be sorted by clicking on the column headers
Note: * Primary mission objective.