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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: ISS030 Roll: E Frame: 122047 Mission ID on the Film or image: ISS030
Country or Geographic Name: NORTHERN MARIANA IS.
Features: PAGAN ISLAND, NORTH PAGAN VOLCANO PLUME, SHOMUSHON
Center Point Latitude: 18.1 Center Point Longitude: 145.7 (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: 52
Camera Focal Length: 1200mm
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.
Percentage of Cloud Cover: 10 (0-10)
NadirGMT Date: 20120306 (YYYYMMDD) GMT Time: 221402 (HHMMSS)
Nadir Point Latitude: 16.8, Longitude: 150.0 (Negative numbers indicate south for latitude and west for longitude)
Nadir to Photo Center Direction: West
Sun Azimuth: 105 (Clockwise angle in degrees from north to the sun measured at the nadir point)
Spacecraft Altitude: 212 nautical miles (393 km)
Sun Elevation Angle: 28 (Angle in degrees between the horizon and the sun, measured at the nadir point)
CaptionsPagan Island, Northern Marianas
A steam plume flows south from the peak of Pagan Islandís northernmost volcano in this astronaut photograph. Pagan is part of the Commonwealth of the Northern Marianas, an island chain of volcanoes that form the margin between the Pacific Ocean (to the east) and the Philippine Sea (to the west). Pagan is made up of two stratovolcanoes separated by an isthmus, and is one of the more volcanically active islands. The last eruption was in 2010, but the island was completely evacuated in 1981 when a large eruption forced the small Micronesian community to flee.
The islands themselves mark the tectonic boundary where the old, cold Pacific plate is subducted beneath the younger, less dense Philippine Sea crust at the Marianas trench. The subduction results in substantial volcanic activity on the upper plate, forming the island arc of the Marianas. Considered to be one of the type examples for an oceanic subduction zone, the Marianas Trench includes the deepest spot in the Earthís oceans (more than 10,000m).
The foreshortened appearance of the island is due to the viewing angle and distance from the International Space Station (ISS). The ISS was located over the Pacific Ocean approximately 480 kilometers to the southeast of Pagan Island when the image was taken.
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Recommended Citation: Earth Science and Remote Sensing Unit, NASA-Johnson Space Center. "The Gateway to Astronaut Photography of Earth." .