30 Meters x 30 Meters
90 Meters x 90 Meters
The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Level 1A (AST_L1A) contains reconstructed, instrument digital numbers (DNs) derived from the acquired telemetry streams of the telescopes: Visible and Near Infrared (VNIR), Shortwave Infrared (SWIR), and Thermal Infrared (TIR). Additionally, geometric correction coefficients and radiometric calibration coefficients are calculated and appended to the metadata but not applied. The AST_L1A product has a spatial resolution of 15 meters (m) for the VNIR bands, 30 m for the SWIR bands, and 90 m for the TIR bands.
Known Issues
Improvements/Changes from Previous Version
Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.
ALGORITHM THEORETICAL BASIS DOCUMENT (ATBD) | The ATBD provides physical theory and mathematical procedures for the calculations used to produce the data products. | |
DATA PRODUCT SPECIFICATION | The ASTER Level-1 Products Specification provides a description of the data file. | |
GENERAL DOCUMENTATION | ASTER SWIR User Advisory | |
USER'S GUIDE | ASTER Level-1 User Guide | |
USER'S GUIDE | The ASTER User Handbook provides in depth information on ASTER data products. |