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Photographing the Earth from the International Space Station

Astronaut Photography of Earth - Display Record

ISS024-E-9526

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File NameFile Size (bytes)WidthHeightAnnotatedCroppedPurposeComments
View ISS024-E-9526.JPG 89378640439 No No
View ISS024-E-9526.JPG 229368540360 Yes No NASA's Earth Observatory web site
View ISS024-E-9526.JPG 7275281000667 No No NASA's Earth Observatory web site
View ISS024-E-9526.JPG 86062428001920 No No

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Electronic Image Data

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Identification

Mission: ISS024 Roll: E Frame: 9526 Mission ID on the Film or image: ISS024
Country or Geographic Name: USA-MONTANA
Features: WILLOW MOUNTAIN, DOMINIC POINT FIRE, SMOKE PLUME
Center Point: Latitude: 46.3 Longitude: -113.9 (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: 14
Camera Focal Length: 100mm
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: 20100725 (YYYYMMDD) GMT Time: 215757 (HHMMSS)
Nadir Point Latitude: 45.6, Longitude: -114.2 (Negative numbers indicate south for latitude and west for longitude)

Nadir to Photo Center Direction: North
Sun Azimuth: 238 (Clockwise angle in degrees from north to the sun measured at the nadir point)
Spacecraft Altitude: 186 nautical miles (344 km)
Sun Elevation Angle: 52 (Angle in degrees between the horizon and the sun, measured at the nadir point)
Orbit Number: 2956

Captions

Dominic Point Fire, Montana

Lightning strikes and human activities in the forested mountains of the western United States can spark wildfires during the summer dry season. The Dominic Point Fire was first reported near 3:00 p.m. local time on Sunday, July 25, 2010. Approximately one hour later, the International Space Station crew photographed the fire’s large smoke plume—already extending at least 8 kilometers (5 miles) to the east—from orbit as the station passed almost directly overhead. Forest Service fire crews, slurry bombers, and helicopters were on the scene by that evening.

The fire may have been started by a lightning strike, as there are no trails leading into the fire area located approximately 22 kilometers (14 miles) northeast of Hamilton, Montana, according to local reports. As of July 26, 2010, the fire had burned approximately 700 to 1,000 acres (283 to 405 hectares) of the Bitterroot National Forest in western Montana. The fire is thought to have expanded quickly due to high temperatures, low humidity, and favorable winds with an abundance of deadfall—dead trees and logs that provide readily combustible fuels—in the area.

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