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Astronaut Photography of Earth - Display Record
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IdentificationMission: ISS028 Roll: E Frame: 44433 Mission ID on the Film or image: ISS028
Country or Geographic Name: KAZAKHSTAN
Features: BIGACH IMPACT CRATER, AGRICULTURAL FIELDS, YEGIN-BULAK
Center Point: Latitude: 48.6 Longitude: 82.0 (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: 31
Camera Focal Length: 180mm
Camera: N2: Nikon D2Xs
Film: 4288E : 4288 x 2848 pixel CMOS sensor, RGBG imager color filter.
Percentage of Cloud Cover: 10 (0-10)
GMT Date: 20110908 (YYYYMMDD) GMT Time: 095921 (HHMMSS)
Nadir Point Latitude: 48.0, Longitude: 83.9 (Negative numbers indicate south for latitude and west for longitude)
Nadir to Photo Center Direction: West
Sun Azimuth: 246 (Clockwise angle in degrees from north to the sun measured at the nadir point)
Spacecraft Altitude: 202 nautical miles (374 km)
Sun Elevation Angle: 28 (Angle in degrees between the horizon and the sun, measured at the nadir point)
Orbit Number: 1390
CaptionsBigach Impact Crater, Kazakhstan
Some meteor impact craters, like Barringer Crater in Arizona, are easily recognizable on the landscape due to well-preserved form and features. Other impact structures, such as Bigach Impact Crater in northeastern Kazakhstan are harder to recognize due to their age, modification by subsequent geologic processes, or even human alteration of the landscape.
At approximately 5 million years old, Bigach is a relatively young geologic feature; however active tectonic processes in the region have caused movement of parts of the structure along faults, leading to a somewhat angular appearance (image center).
The roughly circular rim of the 8 km in diameter structure is still discernable around the relatively flat interior in this astronaut photograph. In addition to modification by faulting and erosion, the interior of the impact structure has also been used for agricultural activities, as indicated by the presence of tan regular graded fields. Other rectangular agricultural fields are visible to the northeast and east. The closest settlement, Novopavlovka, is barely visible near the top of the image.
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