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ASTER Imagery (Advanced Spaceborne Thermal Emission and Reflection Radiometer) |
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ASTER is an imaging instrument flying on Terra, a satellite launched in December 1999 as part of NASA’s Earth Observing System. ASTER collects data in 14 different spectral bands which vary in spatial resolution from 15 to 90 meters (see table below). We acquire and archive only the first three 15-meter bands. Images in the archive are in GeoTiff format with UTM projection. These false color composites of Forbes Field airport south of Topeka, Kansas were acquired by the ASTER (left) and ETM+ (right) sensors.
ASTER Data Download ASTER Instrument Characteristics |
| Characteristic | Visible and NIR | Short Wave IR | Thermal IR |
|---|---|---|---|
| Spectral Range | Band 1:
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Band 4: 1.600 - 1.700 µm |
Band 10: 8.125 - 8.475 µm |
| Band 2: 0.63 - 0.69 µm Nadir looking |
Band 5: 2.145 - 2.185 µm |
Band 11: 8.475 - 8.825 µm |
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| Band 3: 0.76 - 0.86 µm Nadir looking |
Band 6: 2.185 - 2.225 µm |
Band 12: 8.925 - 9.275 µm |
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| Band 3: 0.76 - 0.86 µm Backward looking |
Band 7: 2.235 - 2.285 µm |
Band 13: 10.25 - 10.95 µm |
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| Band 8: 2.295 - 2.365 µm |
Band 14: 10.95 - 11.65 µm |
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| Band 9: 2.360 - 2.430 µm |
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| Ground Resolution | 15 m | 30m | 90m |
| Quantization (bits) | 8 | 8 | 12 |
