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Chandrayaan-2 Topographic Mapping Using TMC-2 | ISRO Updates

Topographic Mapping Using TMC-2 of Chandrayaan-2

Source : ISRO

Terrain mapping camera-2 (TMC-2) is a observe-on of the TMC on-board chandrayaan-1. TMC-2 offers images (0.4μm to 0.85μm) at 5m spatial decision & stereo triplets (fore, nadir and aft perspectives) from a a 100 km orbit for getting ready virtual elevation version (DEM) of the whole lunar surface.

The triplet photographs from TMC-2 while processed into virtual elevation fashions, enable mapping of floor landform morphologies. those consist of


  • Craters (shaped by impactors)
  • Lava tubes (ability sites for future habitability)
  • Rilles (furrows fashioned with the aid of  lava channels or collapsed lava tubes)
  • Dorsa or wrinkle ridges (fashioned broadly speaking in mare areas depicting cooling of and contraction of basaltic lava)
  • Graben structures (depicts the structural dislocations on the lunar surface )
  • Lunar domes/ cones (denoting localized vents of past volcanism at the moon).


The derived information helps estimation of dimensions of above capabilities and its comparison for reconstructing the Morpho-structural framework, crater characterization to derive effect geometries, surface age dedication through crater size –frequency distribution (CSFD) techniques, rheological evaluation based totally at the derived morphometric parameters, lunar reflectance estimation and so on.

DEM Generation from Terrai Mapping Camera 2
DEM Generation from Terrai Mapping Camera 2

3D view of a crater near Lindbergh
3D view of a crater near Lindbergh

3D view of a Wrinkle ridge near Dorsa Geikie
3D view of a Wrinkle ridge near Dorsa Geikie

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