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Instrument details
Acronym
TEREK-C
Full name
Solar XUV Telescope/Coronagraph
Purpose
To study large and fine structures in the solar atmosphere
Short description
Imaging spectrograph for the X-ray and EUV ranges 0.5-2.5 nm, 17-18 nm, 29-32 nm [including Fe-IX at 17.1 nm, and He-II at 30.4 nm], and around 5.2 and 13 nm. In addition, coronagraph for the range 400-600 nm
Background
Consolidated technology
Scanning Technique
Sun pointing from a near-polar LEO drifting orbit. Corona view included
Resolution
5000 km at Sun surface
Coverage / Cycle
Full Sun disk at about 1-s rate
Mass
45 kg
Power
40 W
Data Rate
Providing Agency
Roscosmos
Instrument Maturity
Flown on an R&D satellite
Utilization Period:
1994 to 1994-07-15
Last update:
2017-05-19
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
Primary mission objectives Solar EUV flux spectrum Solar EUV image Solar X-ray flux spectrum Solar X-ray image Secondary mission objectives Solar VIS image Solar coronagraphic image Opportunity objectives Show all Show fewer
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 X-ray flux spectrum 3 - high No specific limitation. Coarse spectral resolution, wide dynamic range, disc and corona view included
Solar X-ray image 2 - very high No specific limitation. Spectrometry with coarse spatial resolution, corona view included
Solar EUV flux spectrum 4 - fair No specific limitation. Coarse spectral resolution, moderate dynamic range, solar disc and corona view included
Solar EUV image 2 - very high No specific limitation. Spectrometry with coarse spatial resolution, corona view included
Solar VIS flux 3 - high No specific limitation. Wide dynamic range, corona view included
Solar VIS image 4 - fair No specific limitation. Fluxmetry with coarse spatial resolution, corona view included
Solar white light image 4 - fair No specific limitation. Fluxmetry with coarse spatial resolution, good coverage of the VIS range, corona view included
Solar coronagraphic image 3 - high No specific limitation. X-rays (0.12-1200 keV)
Instrument: TEREK-C