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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.

NASA successfully launched the world’s latest earth-observing satellite aboard an Atlas V rocket from Vandenberg Air Force Base in California today, crystallizing hopes that US scientists will be able to maintain and enhance a continuous environmental monitoring record that dates back more than four decades. NASA and the US Geological Survey are expected to initiate the launch at 1:02pm EST from California's Vandenberg Air Force Base. Once it's in space, Landsat 8 will collect photographs, thermal data, and infrared images from 438 miles above the surface of the Earth, circling the planet roughly every 99 minutes or 14 times a day. On each pass, the satellite will capture a 185-kilometer-wide section, giving us a full image of the globe once every 16 days. Though it doesn't provide the incredibly high-resolution imagery you'll find in some satellite photos, it gives scientists, businesses, and the public (since the data is released for free) a look at what's going on across the planet, showing us environmental changes or the spread of cities and farmland. Sensors Operational Land Imager (OLI) Nine spectral bands, including a pan band: Band 1 Visible (0.433 - 0.453 µm) 30 m Band 2 Visible (0.450 - 0.515 µm) 30 m Band 3 Visible (0.525 - 0.600 µm) 30 m Band 4 Near-Infrared (0.630 - 0.680 µm) 30 m Band 5 Near-Infrared (0.845 - 0.885 µm) 30 m Band 6 SWIR 1(1.560 - 1.660 µm) 30 m Band 7 SWIR 2 (2.100 - 2.300 µm) 30 m Band 8 Panchromatic (PAN) (0.500 - 0.680 µm) 15 m Band 9 Cirrus (1.360 - 1.390 µm) 30 m Thermal Infrared Sensor (TIRS) Two spectral bands: Band 10 TIRS 1 (10.3 - 11.3 µm) 100 m Band 11 TIRS 2 (11.5 - 12.5 µm) 100 m see here for complete article : http://landsat.usgs.gov/about_ldcm.php good job NASA