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The Gateway to Astronaut Photography of Earth
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Astronaut Photography of Earth - Display Record
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IdentificationMission: ISS027 Roll: E Frame: 20395 Mission ID on the Film or image: ISS027
Country or Geographic Name: RUSSIAN FEDERATION
Features: AVACHINSKLY VOLCANO, KOZELSKY VOLCANO, CLOUDS
Center Point Latitude: 53.2 Center Point Longitude: 158.9 (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:
CameraCamera Tilt: 33
Camera Focal Length: 800mm
Camera: N2: Nikon D2Xs
Film: 4288E : 4288 x 2848 pixel CMOS sensor, RGBG imager color filter.
Percentage of Cloud Cover: 50 (26-50)
NadirGMT Date: 20110502 (YYYYMMDD) GMT Time: 062156 (HHMMSS)
Nadir Point Latitude: 51.2, Longitude: 159.0 (Negative numbers indicate south for latitude and west for longitude)
Nadir to Photo Center Direction: North
Sun Azimuth: 268 (Clockwise angle in degrees from north to the sun measured at the nadir point)
Spacecraft Altitude: 183 nautical miles (339 km)
Sun Elevation Angle: 21 (Angle in degrees between the horizon and the sun, measured at the nadir point)
Orbit Number: 3367
CaptionsAvachinsky Volcano, Kamchatka Peninsula, Russia
The Kamchatka Peninsula of Russia, located along the Pacific “ring of fire”, includes more than 100 identified volcanoes. While most of these volcanoes are not actively erupting, many are considered to be dangerous due to their past eruptive history and proximity to population centers and air travel corridors. This detailed astronaut photograph highlights the summit crater and snow-covered upper slopes of the Avachinsky stratovolcano exposed above a surrounding cloud deck.
The 2741 meter high Avachinsky volcano has an extensive historical and geological record of eruptions with the latest activity observed in 2008. The large city of Petropavlovsk, Kamchatka is located approximately 25 kilometers to the southwest and is built over approximately 30,000 – 40,000 year old debris avalanche deposits that originated from Avachinsky – suggesting that the city may be at risk from a similar hazard in the future. To the southeast (image right), the large breached crater of Kozelsky Volcano is also visible above the clouds. Kozelsky is a parasitic cone, formed by the eruption of material from vents along the flank of Avachinsky volcano.
The topography of the volcanoes is accentuated by shadows produced by the relatively low sun angle, and by the oblique viewing angle. Oblique images are taken looking outwards at an angle from the International Space Station, rather than the “straight down” (or nadir) view typical of most orbital Earth-observing sensor systems.
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