PIA02453: ASTER's First Views of Rift Valley, Ethiopia - Thermal-Infrared (TIR) Image (color)

Target Name: Earth Is a satellite of: Sol (our sun) Mission: Earth Observing System (EOS) Spacecraft: Terra Instrument: ASTER Product Size: 2288 samples x 2288 lines Produced By: ERSDAC - Japan Addition Date: 2000-03-11 Primary Data Set: ASTER Full-Res TIFF: PIA02453.tif (13.48 MB) Full-Res JPEG: PIA02453.jpg (231.5 kB)

Original Caption Released with Image: This image is a color composite covering the Rift Valley inland area of Ethiopia (south of the region shown inPIA02452). The color difference of this image reflects the distribution of different rocks with different amounts of silicon dioxide. It is inferred that the area with whitish color is covered with basalt and the pinkish area in the center contain sandesite. This is the first spaceborne, multi-band TIR image in history that enables geologists to distinguish between rocks with similar compositions. The size of image: 60 km x 60 km approx., ground resolution 90 m x 90 m approximately. The ASTER instrument was built in Japan for the Ministry of International Trade and Industry. A joint United States/Japan Science Team is responsible for instrument design, calibration, and data validation. ASTER is flying on the Terra satellite, which is managed by NASA's Goddard Space Flight Center, Greenbelt, MD. Image Credit: NASA/Goddard/ERSDAC & JPL