Astronaut Photography of Earth - Display Record
ISS020-E-21140
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| File Name | File Size (bytes) | Width | Height | Annotated | Cropped | Purpose | Comments | |
|---|---|---|---|---|---|---|---|---|
| View | ISS020-E-21140.JPG | 95173 | 640 | 438 | No | No | ||
| View | ISS020-E-21140.JPG | 315592 | 540 | 383 | Yes | Yes | NASA's Earth Observatory web site | |
| View | ISS020-E-21140.JPG | 999087 | 1000 | 709 | No | Yes | NASA's Earth Observatory web site | |
| View | ISS020-E-21140.JPG | 1488505 | 4256 | 2913 | No | No |
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Electronic Image Data
Camera Files >> No sound file available.Identification
Mission: ISS020 Roll: E Frame: 21140 Mission ID on the Film or image: ISS020Country or Geographic Name: CANARY ISLANDS
Features: TEIDE VOLCANO, CALDERA, LAVA FLOWS, RAVINES
Center Point Latitude: 28.3 Center Point Longitude: -16.6 (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:
Camera
Camera Tilt: 41Camera Focal Length: 800mm
Camera: N3: Nikon D3
Film: 4256E : 4256 x 2832 pixel CMOS sensor, 36.0mm x 23.9mm, total pixels: 12.87 million, Nikon FX format.
Quality
Film Exposure:Percentage of Cloud Cover: 10 (0-10)
Nadir
Date: 20090715 (YYYYMMDD)GMT Time: 175304 (HHMMSS)Nadir Point Latitude: 30.1, Longitude: -14.6 (Negative numbers indicate south for latitude and west for longitude)
Nadir to Photo Center Direction: Southwest
Sun Azimuth: 281 (Clockwise angle in degrees from north to the sun measured at the nadir point)
Spacecraft Altitude: 188 nautical miles (348 km)
Sun Elevation Angle: 25 (Angle in degrees between the horizon and the sun, measured at the nadir point)
Orbit Number: 1045
Captions
Teide Volcano, Canary Islands, SpainThis detailed astronaut photograph features two stratovolcanoes—Pico de Teide and Pico Viejo—located on Tenerife Island, part of the Canary Islands of Spain. Stratovolcanoes are steep-sided, typically conical volcanoes formed by interwoven layers of lava and fragmented rock material from explosive eruptions. Pico de Teide has a relatively sharp peak, whereas an explosion crater forms the summit of Pico Viejo. The two stratovolcanoes formed within an even larger volcanic structure known as the Las Cañadas caldera. A caldera is a large collapse depression usually formed when a major eruption completely empties the magma chamber underlying a volcano. The last eruption of Teide occurred in 1909.
Sinuous flow levees marking individual lava flows are perhaps the most striking volcanic features visible in the image. Flow levees are formed when the outer edges of a channelized lava flow cool and harden while the still-molten interior continues to flow downhill. Numerous examples radiate outwards from the peaks of both Pico de Teide and Pico Viejo. Brown to tan overlapping lava flows and domes are visible to the east-southeast of the Teide stratovolcano. Increased seismicity, carbon dioxide emissions, and fumarolic (gas and smoke) activity within the Las Cañadas caldera and along the northwestern flanks of the volcano were observed in 2004. Monitoring of the volcano to detect renewal of activity is ongoing.
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