Precision Monitoring of Solar variability
Sun observation, Space weather - Monitoring from a terrestrial orbit by measuring solar spectral irradiance, at selected wavelengths, and total solar irradiance.
Total Solar Irradiance by absolute differential radiometer. Solar Spectral Irradiance by three 4-channel filter radiometers providing measurements in 6 channels : three in UV corresponding to the spectral domains specific of the ozone photochemistry, one in VIS and two in IR
Coverage / Cycle
Near-continuous from the dawn-dusk orbit
Flown on an R&D satellite
2010-10-08 to 2014-04-04
SNR or NE Δ T @ specified input 210 nm
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
Earth observation instrument Passive optical radiometer or spectrometer Solar irradiance monitor
No WIGOS subcomponents have been defined.
Tentative Evaluation of Measurements
The following list indicates which measurements can
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
Variable Relevance for measuring this variable Operational limitations Explanation
Downward short-wave irradiance at TOA 4 - fair No specific limitation. TSI over the range UV, VIS and part of NIR