Hello everyone, I tried to generate DEM from stereo ASTER image (AST_L1A) using ERDAS Leica Photogrammetry Suit 2011 version. For this purpose, I used orbital pushbroom ASTER geometric model for block creation. But when I added the ASTER image (HDF format) in block this show error message (ast_l1a_530.hdf> is not an appropriate file for this type of sensor model). I am not able to figure out the problem. If anyone can help me it would be greatly appreciated.