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Photographing the Earth from the International Space Station

Astronaut Photography of Earth - Display Record

ISS038-E-57827

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File NameFile Size (bytes)WidthHeightAnnotatedCroppedPurposeComments
View ISS038-E-57827.JPG 103404640427 No No
View ISS038-E-57827.JPG 209245720480 Yes No NASA's Earth Observatory web site
View ISS038-E-57827.JPG 7669181440960 No No NASA's Earth Observatory web site
View ISS038-E-57827.JPG 11138331000667 No No NASA's Earth Observatory web site
View ISS038-E-57827.JPG 294997760484032 No No

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Electronic Image Data

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Identification

Mission: ISS038 Roll: E Frame: 57827 Mission ID on the Film or image: ISS038
Country or Geographic Name: USA-ARKANSAS
Features: ARKANSAS R., MEANDER LAKES, LITTLE ROCK
Center Point: Latitude: 34.8 Longitude: -92.2 (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: 11
Camera Focal Length: 1000mm
Camera: N4: Nikon D3X
Film: 6048E : 6048 x 4032 pixel CMOS sensor, 35.9mm x 24.0mm, total pixels: 25.72 million, Nikon FX format.

Quality

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

Nadir

GMT Date: 20140221 (YYYYMMDD) GMT Time: 190304 (HHMMSS)
Nadir Point Latitude: 35.4, Longitude: -91.8 (Negative numbers indicate south for latitude and west for longitude)

Nadir to Photo Center Direction: Southwest
Sun Azimuth: 194 (Clockwise angle in degrees from north to the sun measured at the nadir point)
Spacecraft Altitude: 222 nautical miles (411 km)
Sun Elevation Angle: 43 (Angle in degrees between the horizon and the sun, measured at the nadir point)
Orbit Number:

Captions

Arkansas River, Arkansas, USA

From the International Space Station more than 400 km (250 miles) above the surface of the Earth, the arcs of dark meander lakes were the focus of the astronaut’s eye when this image was taken. The Arkansas River appears lower right. Winding roads of part of suburban Little Rock, Arkansas, appear lower left. Highway 40 crosses the left side of the image, under a smudge of high cloud.

The image shows the point where the Arkansas River enters the wide flats of the Mississippi River floodplain. Unconfined by valley walls, the Arkansas is free to move across the floodplain. The meander lakes show the exact position of prior courses of the Arkansas at different times in the past. Meanders are known to migrate constantly, a behavior also revealed by successive positions of levees which appear as fine lines and represent ancient river banks (image left center and top center). Most of the land surface shown in the image was therefore part of the river course and its levees at some time in the past. The river is now controlled to prevent such movement which can undercut bridge abutments—such as those of the bridge lower right. Many locks allow barge traffic to operate as far inland as Tulsa, Oklahoma. One such lock lies just outside the view lower right. The Arkansas River is the sixth longest in the United States—rising far to the west in the Sawatch Range in the Rocky Mountains.


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