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(NASA Crew Earth Observations)

Photographing the Earth from the International Space Station

Astronaut Photography of Earth - Display Record


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File NameFile Size (bytes)WidthHeightAnnotatedCroppedPurposeComments
View ISS038-E-3612.JPG 83918640426 No No
View ISS038-E-3612.JPG 210675540359 Yes Yes NASA's Earth Observatory web site
View ISS038-E-3612.JPG 4923981440960 No No NASA's Earth Observatory web site
View ISS038-E-3612.JPG 4994351000665 No Yes NASA's Earth Observatory web site
View ISS038-E-3612.JPG 90702942562832 No No

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Mission: ISS038 Roll: E Frame: 3612 Mission ID on the Film or image: ISS038
Country or Geographic Name: USA-ALASKA
Center Point: Latitude: 52.8 Longitude: -169.9 (Negative numbers indicate south for latitude and west for longitude)

Stereo: (Yes indicates there is an adjacent picture of the same area)


Camera Tilt: 29
Camera Focal Length: 400mm
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.


Film Exposure:
Percentage of Cloud Cover: 75 (51-75)


GMT Date: 20131115 (YYYYMMDD) GMT Time: 193742 (HHMMSS)
Nadir Point Latitude: 51.0, Longitude: -168.9 (Negative numbers indicate south for latitude and west for longitude)

Nadir to Photo Center Direction: Northwest
Sun Azimuth: 132 (Clockwise angle in degrees from north to the sun measured at the nadir point)
Spacecraft Altitude: 221 nautical miles (409 km)
Sun Elevation Angle: 8 (Angle in degrees between the horizon and the sun, measured at the nadir point)
Orbit Number:


Islands of the Four Mountains, Aleutian Islands

Note: This caption refers to the image versions labeled "NASA's Earth Observatory web site".

Morning sunlight illuminates the southeast-facing slopes of the Islands of the Four Mountains in this astronaut photograph from the International Space Station. The islands, part of the Aleutian Island chain, are actually the upper slopes of volcanoes rising from the sea floor; Carlisle, Cleveland, Herbert, and Tana. Carlisle and Herbert volcanoes are distinct cones and form separate islands. Cleveland volcano and the Tana volcanic complex form the eastern and western ends respectively of Chuginadak Island; a cloud bank obscures the connecting land mass in this image.

Cleveland volcano (peak elevation 1730 meters above sea level, or asl) is one of the most active in the Aleutian chain, with its most recent activity—eruptions and lava flow emplacement—taking place in May of 2013 (crew aboard the ISS captured an earlier eruption in 2006). The northernmost of the islands, Carlisle volcano’s (peak elevation 1620 meters asl) last confirmed eruption occurred in 1828, with unconfirmed reports of activity in 1987. Herbert volcano (peak elevation 1280 meters asl) to the southwest displays a classic cone structure breached by a 2-kilometer wide summit caldera (image lower left), but there are no historical records of volcanic activity. The easternmost peak, Tana (1170 meters asl) is a volcanic complex comprised of two east-west trending volcanoes and associated younger cinder cones; like Herbert volcano, there is no historical record of activity at Tana.

A layer of low cloud and/or fog obscures much of the lower elevations of the islands and the sea surface, but the clouds also indicate the general airflow pattern around and through the islands. Directly to the south-southeast of Cleveland volcano a Von Karman vortex street is visible. Shadows cast by the morning sun extend from the peaks towards the northwest. The peaks of all of the Four Islands have snow cover; this is distinct from the clouds due to both higher brightness (white versus gray) and specific location on the landscape.

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