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Instrument details
Acronym
GGAK-E/ISP-2M
Full name
GGAK-L / Solar constant sensor
Purpose
Integral radiance of the Sun (integral solar constant)
Short description
Spectral range. 0.2-100 µm
Background
Part of the GGAK-E (Heliogeophysical Instrument Complex on Electro-L) package, also confirmed for Electro-M (GGAK-E/M) and adapted to Arctica (GGAK-E/A)
Scanning Technique
Sun pointing
Resolution
N/A
Coverage / Cycle
Continuous measuremet (at 1 s intervals)
Mass
Power
Data Rate
Providing Agency
Roscosmos
Instrument Maturity
Flown on operational programme
Utilization Period:
≥2023 to ≥2033
Last update:
2021-06-23
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 Solar irradiance monitor
WIGOS Subcomponents
Subcomponent 1 TSI and SSI radiometers (for solar irradiance)
Mission objectives
Tentative 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
Variable Relevance for measuring this variable Operational limitations Explanation
Downward short-wave irradiance at TOA 2 - very high No specific limitation. TSI over the range from UV to FIR
Instrument: GGAK-E/ISP-2M