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The Gateway to Astronaut Photography of Earth
(NASA Crew Earth Observations)
Astronaut Photography of Earth - Display Record
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IdentificationMission: ISS019 Roll: E Frame: 5989 Mission ID on the Film or image: ISS019
Country or Geographic Name: USA-NORTH DAKOTA
Features: WAHPETON-BREKENRIDGE, FLOODING
Center Point Latitude: 46.2 Center Point Longitude: -96.6 (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:
CameraCamera Tilt: 21
Camera Focal Length: 800mm
Camera: N2: Nikon D2Xs
Film: 4288E : 4288 x 2848 pixel CMOS sensor, RGBG imager color filter.
Percentage of Cloud Cover: 10 (0-10)
NadirGMT Date: 20090409 (YYYYMMDD) GMT Time: 211805 (HHMMSS)
Nadir Point Latitude: 46.0, Longitude: -95.4 (Negative numbers indicate south for latitude and west for longitude)
Nadir to Photo Center Direction: West
Sun Azimuth: 239 (Clockwise angle in degrees from north to the sun measured at the nadir point)
Spacecraft Altitude: 188 nautical miles (348 km)
Sun Elevation Angle: 37 (Angle in degrees between the horizon and the sun, measured at the nadir point)
Orbit Number: 3520
CaptionsRed River Floods, North Dakota and Minnesota
When this astronaut photo was captured on April 9, 2009, the Red River was experiencing its second round of spring flooding. (Two weeks earlier, the river had crested at very high levels.) The Red River flows north between North Dakota and Minnesota from the confluence of the Bois de Sioux River (south, image lower right) and the less well drained, meandering Otter Tail River (east, image right). Floodwaters in these two tributaries appear as black shapes against a snowy agricultural landscape that is defined by rectangular fields. The largest flooded areas are low parts of fields (image bottom) along a canalized western tributary of the Wild Rice River, which itself becomes a tributary of the Red River just south of Fargo, North Dakota.
Wahpeton, North Dakota, and Breckenridge, Minnesota, sit opposite each another on the banks of the Red River, and their city-block patterns stand out as dark gray patches against the snow at image top right. The main runway of the Henry Stern Airport lies angled northwest directly south of Wahpeton, and its 1.3-kilometers (0.8-mile) runway gives a sense of scale to the photo. Access roads to the agricultural fields tend to follow an orthogonal pattern, while larger roads leading to the cities cut across this pattern (image upper left, near Wahpeton). A subtle pattern of drainage ditches and plow lines appears as thin, parallel lines throughout fields in the scene.
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Recommended Citation: Earth Science and Remote Sensing Unit, NASA-Johnson Space Center. "The Gateway to Astronaut Photography of Earth." .