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Instrument details
Acronym
VUSS
Full name
Vacuum UV Solar spectrum
Purpose
Long-term measurements of the solar EUV radiation
Short description
Spectrometer for the EUV range 20-58 nm with resolving power λ/Δλ = 400, including Fe-XV at 28.4 nm, and He-II at 30.4 nm
Background
Consolidated technology
Scanning Technique
Sun pointing from a LEO high-inclination drifting orbit
Resolution
N/A (full disk)
Coverage / Cycle
Full Sun disk integral at about 1-s rate
Mass
18.5 kg
Power
20 W
Data Rate
Providing Agency
Roscosmos
Instrument Maturity
Flown on an R&D satellite
Utilization Period:
1994 to 1994-07-15
Last update:
2017-05-17
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
Solar and space environment monitors Solar activity monitor
WIGOS Subcomponents
No WIGOS subcomponents have been defined.
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
Solar EUV flux spectrum 2 - very high No specific limitation. High spectral resolution, moderate dynamic range
Instrument: VUSS