No JavaScript detected
Instrument details
Acronym
FIMS
Full name
Far Ultra Violet Imaging Spectrograph
Purpose
To study the diffuse hot interstellar matter in the Far Ultraviolet (FUV) spectrum
Short description
Far UV imaging spectograph employing a dual bandpass (900-1175 Ä and 1335-1750 Ä), with high spectral resolution (1.5 Ä and 2.5 Ä, respectively)
Background
New development
Scanning Technique
Arrays of 512 x 512 detectors for each band. Field of view 8º x 5', angular resolution 5 arcmin. Alternatively addressable towards the airglow, towards the aurora regions or towards the open sky, from a sunsynchronous orbit
Resolution
4.77° corresponding to 58 km at Earth's surface
Coverage / Cycle
Full interplanetary space in 100 min (orbital period) including magnetosphere and ionosphere. Sampling at 10 s intervals
Mass
20 kg
Power
20 W
Data Rate
Providing Agency
KARI
Instrument Maturity
Flown on an R&D satellite
Utilization Period:
2003 to 2005-10-15
Last update:
2017-05-21
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 Space radiometer or spectrometer
WIGOS Subcomponents
No WIGOS subcomponents have been defined.
Mission objectives
Primary mission objectives Heliospheric image UV flux spectrum Secondary mission objectives
Opportunity objectives Ionospheric plasma density 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
UV flux spectrum 1 - primary No specific limitation. Earth's limb observed, high spectral resolution
UV sky image 2 - very high No specific limitation. Earth's limb observed, spectrometry with coarse spatial resolution
Heliospheric image 2 - very high No specific limitation. Interplanetary space viewing in the UV band (121.6-393.4 nm)
Aurora 2 - very high No specific limitation. Observed down to Earth's surface in UV (121.6-393.4 nm)
Ionospheric plasma density 5 - marginal No specific limitation. UV imaging spectrometer measuring ionospheric plasma density in the Earth's limb
Electron Density 5 - marginal No specific limitation. UV spectrometry of the Earth's limb
Instrument: FIMS