BackForwardInstrument:  CMT 

Instrument details
Acronym CMT
Full name China Mapping Telescope
Purpose High-resolution land observation, disasters monitoring
Short description Panchromatic camera, 0.5-0.8 ?m
Background Consolidated technology
Scanning Technique Pushbroom, steerable. 12,288 detector array (6000 used), swath 24 km possible to be pointed in a field of regard of 800 km
Resolution IFOV: 4 m
Coverage / Cycle Global coverage: 104 days (4 repeat cycles). More frequent observation of an area by strategic pointing
Mass 25 kg Power 12 W Data Rate

 

Providing Agency NRSCC
Instrument Maturity Flown on an R&D satellite
Utilization Period: 2006 to ≥2017
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
Mission objectives
Primary mission objectives
  • Fire fractional cover
Secondary mission objectives
  • Glacier cover
  • Sea-ice cover
  • Snow cover
Opportunity objectives
  • Cloud cover
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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
VariableRelevance for measuring this variableOperational limitationsExplanation
Cloud cover5 - marginalInfrequent coverage.. Daylight only.Panchromatic channel
Fire fractional cover1 - primaryCloud sensitive.. Infrequent coverage.. Daylight only.Panchromatic channel with high resolution, for fire boundary detection
Glacier cover5 - marginalCloud sensitive.. Long time for mapping.. Daylight only.Panchromatic channel with high resolution, for glacier boundary detection
Glacier topography5 - marginalCloud sensitive.. Long time for mapping.. Daylight only.Panchromatic channel and cross-track steering capability for stereoscopy between images from neighbouri orbits
Ice sheet topography5 - marginalCloud sensitive.. Long time for mapping.. Daylight only.Panchromatic channel and cross-track steering capability for stereoscopy between images from neighbouring orbits
Land surface topography5 - marginalCloud sensitive.. Long time for mapping.. Daylight only.Panchromatic channel and cross-track steering capability for stereoscopy between images from neighbouring orbits
Sea-ice cover5 - marginalCloud sensitive.. Daylight only.Panchromatic channel
Snow cover5 - marginalCloud sensitive.. Infrequent coverage.. Daylight only.Panchromatic channel