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The Gateway to Astronaut Photography of Earth
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Astronaut Photography of Earth - Display Record
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IdentificationMission: ISS028 Roll: E Frame: 14782 Mission ID on the Film or image: ISS028
Country or Geographic Name: AUSTRALIA-WA
Features: SHOEMAKER IMPACT CRATER, LAKE NABBERU, CLOUD SHADOWS
Center Point Latitude: -25.8 Center Point Longitude: 121.0 (Negative numbers indicate south for latitude and west for longitude)
Stereo: (Yes indicates there is an adjacent picture of the same area)
ONC Map ID: JNC Map ID:
CameraCamera Tilt: 24
Camera Focal Length: 200mm
Camera: N2: Nikon D2Xs
Film: 4288E : 4288 x 2848 pixel CMOS sensor, RGBG imager color filter.
Percentage of Cloud Cover: 10 (0-10)
NadirGMT Date: 20110706 (YYYYMMDD) GMT Time: 233635 (HHMMSS)
Nadir Point Latitude: -26.2, Longitude: 119.5 (Negative numbers indicate south for latitude and west for longitude)
Nadir to Photo Center Direction: East
Sun Azimuth: 60 (Clockwise angle in degrees from north to the sun measured at the nadir point)
Spacecraft Altitude: 208 nautical miles (385 km)
Sun Elevation Angle: 9 (Angle in degrees between the horizon and the sun, measured at the nadir point)
Orbit Number: 399
CaptionsShoemaker Impact Structure, Western Australia
The Shoemaker (formerly Teague) Impact Structure—located in Western Australia to the southeast of the Carnarvon Range—presents an other-worldly appearance in this astronaut photograph. The Shoemaker impact site is approximately 30 km in diameter, and is clearly defined by concentric ring structures formed in sedimentary rocks (brown to dark brown, image center) that were deformed by the impact event approximately 1630 million years ago (as reported by the Earth Impact Database). Other published age-dating analyses of granitic rocks at the core of the structure call into question this age of the impact event (Pirajno et al. 2003).
Several saline and ephemeral lakes—Nabberu, Teague, Shoemaker, and numerous smaller ponds—occupy the land surface between the concentric ring structures. Differences in color result from both water depth and suspended sediments, with some bright salt crusts visible around the edges of smaller ponds (image center). The Teague Impact Structure was renamed Shoemaker in honor of Dr. Eugene M. Shoemaker (1928-1997), a pioneer in the field of impact crater studies and planetary geology, and founder of the Astrogeology Branch of the United States Geological Survey.
Pirajno F, P Hawke, AY Glikson, PW Haines, and T Uysal (2003). Shoemaker impact structure, Western Australia. Australian Journal of Earth Sciences 50:775-796.
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