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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 ISS024-E-15121.JPG 81784640439 No No
View ISS024-E-15121.JPG 229907540360 Yes Yes NASA's Earth Observatory web site
View ISS024-E-15121.JPG 6025911000667 No Yes NASA's Earth Observatory web site
View ISS024-E-15121.JPG 193466960484147 No No

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Mission: ISS024 Roll: E Frame: 15121 Mission ID on the Film or image: ISS024
Country or Geographic Name: USA-UTAH
Center Point: Latitude: 38.4 Longitude: -112.5 (Negative numbers indicate south for latitude and west for longitude)

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


Camera Tilt: High Oblique
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.


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


GMT Date: 20100920 (YYYYMMDD) GMT Time: 230148 (HHMMSS)
Nadir Point Latitude: 40.5, Longitude: -106.8 (Negative numbers indicate south for latitude and west for longitude)

Nadir to Photo Center Direction: West
Sun Azimuth: 250 (Clockwise angle in degrees from north to the sun measured at the nadir point)
Spacecraft Altitude: 190 nautical miles (352 km)
Sun Elevation Angle: 23 (Angle in degrees between the horizon and the sun, measured at the nadir point)
Orbit Number: 3853


Twitchell Canyon Fire, Central Utah

The Twitchell Canyon Fire, near central Utah’s Fishlake National Forest, was reported to cover approximately 13,383 hectares (134 square kilometers, or 33,071 acres) as of September 21, 2010. The crew on the International Space Station (ISS) took this photograph of the smoke plumes generated by fires close to the southwestern edge of the burned area. The fire was started by a lightning strike on July 20, 2010.

The photograph is highly oblique; that is, it was taken at an angle rather than looking straight down towards the Earth’s surface (a nadir view). The ISS was located over a point approximately 509 kilometers (316 miles) to the northeast, near the Colorado/Wyoming border, at the time. Southwesterly winds stretched smoke plumes to the northeast.

While the Twitchell Canyon region is sparsely populated, Interstate Highway 15 is visible at the upper right. A MODIS image acquired a day earlier than the astronaut photograph provides a regional view of the fire.

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