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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: STS102 Roll: 303 Frame: 17 Mission ID on the Film or image: STS102
Country or Geographic Name: EGYPT
Features: ASWAN HIGH DAM, LAKE NASSER
Center Point: Latitude: 24.0 Longitude: 33.0 (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: 21
Camera Focal Length: 110mm
Camera: NK: Nikon 35mm film camera
Percentage of Cloud Cover: 10 (0-10)
GMT Date: 20010318 (YYYYMMDD) GMT Time: 090921 (HHMMSS)
Nadir Point Latitude: 24.7, Longitude: 31.9 (Negative numbers indicate south for latitude and west for longitude)
Nadir to Photo Center Direction: Southeast
Sun Azimuth: 152 (Clockwise angle in degrees from north to the sun measured at the nadir point)
Spacecraft Altitude: 205 nautical miles (380 km)
Sun Elevation Angle: 62 (Angle in degrees between the horizon and the sun, measured at the nadir point)
Orbit Number: 156
CaptionsSTS102-303-17 Aswan High Dam, Egypt
The Aswan High Dam was completed in 1970 and is one of the largest earthen embankment dams in the world. It is 364 feet (111 m) tall, 12 565 feet (3830 m) long and nearly 3281 feet (1000 m) wide. When it was built the new reservoir required relocation of nearly 100 000 residents and some archaeological sites. Although the reservoir has benefited Egypt by providing power and controlling floods, it has also had detrimental effects on the Nile system. Before the dam, an estimated 110 million tons of silt was deposited by the annual flood of the Nile, enriching agricultural lands and maintaining the land of the Nile delta. Now this sediment is trapped behind the dam, requiring artificial fertilization of agricultural lands and leading to erosion and saltwater intrusion where the Nile river meets the Mediterranean Sea.
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