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Photographing the Earth from the International Space Station

Astronaut Photography of Earth - Display Record

ISS013-E-78295

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File NameFile Size (bytes)WidthHeightAnnotatedCroppedPurposeComments
View ISS013-E-78295.JPG 72678639435 No No
View ISS013-E-78295.JPG 178282540356 Yes Yes NASA's Earth Observatory web site
View ISS013-E-78295.JPG 4809591000660 No Yes NASA's Earth Observatory web site
View ISS013-E-78295.JPG 98388130322064 No No

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Electronic Image Data

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Identification

Mission: ISS013 Roll: E Frame: 78295 Mission ID on the Film or image: ISS013
Country or Geographic Name: ITALY
Features: PAN-ALPS, PO R. VALLY, SMOG
Center Point: Latitude: 44.0 Longitude: 10.0 (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: High Oblique
Camera Focal Length: 38mm
Camera: E4: Kodak DCS760C Electronic Still Camera
Film: 3060E : 3060 x 2036 pixel CCD, RGBG array.

Quality

Film Exposure:
Percentage of Cloud Cover: 25 (11-25)

Nadir

GMT Date: 20060906 (YYYYMMDD) GMT Time: 123809 (HHMMSS)
Nadir Point Latitude: 48.6, Longitude: 16.8 (Negative numbers indicate south for latitude and west for longitude)

Nadir to Photo Center Direction: Southwest
Sun Azimuth: 217 (Clockwise angle in degrees from north to the sun measured at the nadir point)
Spacecraft Altitude: 184 nautical miles (341 km)
Sun Elevation Angle: 42 (Angle in degrees between the horizon and the sun, measured at the nadir point)
Orbit Number: 599

Captions

Haze in the Po River Valley, Italy:
Taken from an oblique angle and looking toward the southwest, this astronaut photograph shows parts of northern Italy, Corsica, Sardinia, the Adriatic Sea, and the Mediterranean. Over part of the Alps, skies are clear, but elsewhere, the view of the land and sea is largely obscured. Bright white clouds cover much of the region, but over northern Italy, the “clouds” are different. There, dingy, gray-blue haze hangs over the Po River Valley.

The Po River, Italy’s longest river, runs approximately 650 kilometers (400 miles) from the southwestern Alps to the Adriatic Sea, passing indirectly through Milan, and through Turin. As Turin is an industrial center of a heavily urbanized region, pollutants often cloud the skies overhead. In fact, northern Italy is one of Europe’s pollution hotspots, and the smog often grows thick enough to be seen from space. Smog in this area is so persistent that astronauts on the International Space Station have photographed other images of it, in October 1997 and February 2003. Recurring accumulations of smog in the Po River Valley, however, result from more than just the industrial emissions from the area around Turin. In this area, smog is often trapped at the base of the Alps by high atmospheric pressure.

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