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Instrument details
Acronym
HRS
Full name
Haute Résolution Stéréoscopique
Purpose
High-resolution land observation. Digital Elevation Model (DEM) by in-orbit stereoscopy
Short description
Single VIS channel (0.51-0.73 µm), SNR = 120 @ 50 % albedo
Background
Evolution of HRVIR flown on SPOT-4
Scanning Technique
Pushbroom, 12000 pixel/line, swath 120 km ssp, along-track fore- and aft- pointing by ± 20°
Resolution
10 m s.s.p. cross-track, 5 m sampling along-track
Coverage / Cycle
Global coverage in 26 days, in daylight
Mass
90 kg
Power
128 W
Data Rate
Providing Agency
CNES
Instrument Maturity
Flown on operational programme
Utilization Period:
2002-07-12 to 2015-03-27
Last update:
2017-03-28
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 High resolution optical imager
WIGOS Subcomponents
No WIGOS subcomponents have been defined.
Mission objectives
Primary mission objectives
Secondary mission objectives Glacier cover Sea-ice cover Snow cover Opportunity objectives Glacier topography Ice sheet topography Land surface topography 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
Cloud cover 5 - marginal Infrequent coverage.. Daylight only. Panchromatic channel
Fire fractional cover 2 - very high Cloud sensitive.. Infrequent coverage.. Daylight only. Panchromatic channel with high resolution, for fire boundary detection
Glacier cover 5 - marginal Cloud sensitive.. Long time for mapping.. Daylight only. Panchromatic channel with high resolution, for glacier boundary detection
Glacier topography 5 - marginal Cloud sensitive.. Long time for mapping.. Daylight only. Panchromatic channel and along-track steering capability for stereoscopy between successive images along the orbit
Ice sheet topography 5 - marginal Cloud sensitive.. Long time for mapping.. Daylight only. Panchromatic channel and along-track steering capability for stereoscopy between successive images along the orbit
Land surface topography 5 - marginal Cloud sensitive.. Long time for mapping.. Daylight only. Panchromatic channel and along-track steering capability for stereoscopy between consecutive images along the orbit
Sea-ice cover 5 - marginal Cloud sensitive.. Daylight only. Panchromatic channel
Snow cover 5 - marginal Cloud sensitive.. Infrequent coverage.. Daylight only. Panchromatic channel
Instrument: HRS