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Photographing the Earth from the International Space Station

Astronaut Photography of Earth - Display Record

ISS025-E-9858

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File NameFile Size (bytes)WidthHeightAnnotatedCroppedPurposeComments
View ISS025-E-9858.JPG 81181640438 No No
View ISS025-E-9858.JPG 324181540406 Yes Yes NASA's Earth Observatory web site
View ISS025-E-9858.JPG 10043271000751 No Yes NASA's Earth Observatory web site
View ISS025-E-9858.JPG 225727842562913 No No

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Electronic Image Data

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Identification

Mission: ISS025 Roll: E Frame: 9858 Mission ID on the Film or image: ISS025
Country or Geographic Name: EGYPT
Features: AT NIGHT, NILE RIVER DELTA, CAIRO, NILE RIVER, AIRGLOW, TEL-AVIV, CYPRUS
Center Point: Latitude: 30.0 Longitude: 30.5 (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:

Camera

Camera Tilt: High Oblique
Camera Focal Length: 16mm
Camera: N5: Nikon D3S
Film: 4256E : 4256 x 2832 pixel CMOS sensor, 36.0mm x 23.9mm, total pixels: 12.87 million, Nikon FX format.

Quality

Film Exposure:
Percentage of Cloud Cover: 10 (0-10)

Nadir

GMT Date: 20101028 (YYYYMMDD) GMT Time: 233848 (HHMMSS)
Nadir Point Latitude: 22.5, Longitude: 35.1 (Negative numbers indicate south for latitude and west for longitude)

Nadir to Photo Center Direction: Northwest
Sun Azimuth: 80 (Clockwise angle in degrees from north to the sun measured at the nadir point)
Spacecraft Altitude: 186 nautical miles (344 km)
Sun Elevation Angle: -57 (Angle in degrees between the horizon and the sun, measured at the nadir point)
Orbit Number: 451

Captions

Nile River Delta at Night

One of the fascinating aspects of viewing Earth at night is how well the lights show the distribution of people. In this view of Egypt, we see a population almost completely concentrated along the Nile Valley, just a small percentage of the country’s land area.

The Nile River and its delta look like a brilliant, long-stemmed flower in this astronaut photograph of the southeastern Mediterranean Sea, as seen from the International Space Station. The Cairo metropolitan area forms a particularly bright base of the flower. The smaller cities and towns within the Nile Delta tend to be hard to see amidst the dense agricultural vegetation during the day. However, these settled areas and the connecting roads between them become clearly visible at night. Likewise, urbanized regions and infrastructure along the Nile River becomes apparent (see also The Great Bend of Nile, Day & Night.)

Another brightly lit region is visible along the eastern coastline of the Mediterranean—the Tel-Aviv metropolitan area in Israel (image right). To the east of Tel-Aviv lies Amman, Jordan. The two major water bodies that define the western and eastern coastlines of the Sinai Peninsula—the Gulf of Suez and the Gulf of Aqaba—are outlined by lights along their coastlines (image lower right). The city lights of Paphos, Limassol, Larnaca, and Nicosia are visible on the island of Cyprus (image top).

Scattered blue-grey clouds cover the Mediterranean Sea and the Sinai, while much of northeastern Africa is cloud-free. A thin yellow-brown band tracing the Earth’s curvature at image top is airglow, a faint band of light emission that results from the interaction of atmospheric atoms and molecules with solar radiation at approximately 100 kilometers (60 miles) altitude.

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