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Photographing the Earth from the International Space Station

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ISS035-E-5438

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File NameFile Size (bytes)WidthHeightAnnotatedCroppedPurposeComments
View ISS035-E-5438.JPG 189230640426 No No
View ISS035-E-5438.JPG 361760540359 Yes Yes NASA's Earth Observatory web site
View ISS035-E-5438.JPG 10658921000665 No Yes NASA's Earth Observatory web site
View ISS035-E-5438.JPG 11779911440960 No Yes NASA's Earth Observatory web site
View ISS035-E-5438.JPG 506364542562832 No No

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Electronic Image Data

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Identification

Mission: ISS035 Roll: E Frame: 5438 Mission ID on the Film or image: ISS035
Country or Geographic Name: USA-ARIZONA
Features: PHOENIX AT NIGHT, GLENDALE AT NIGHT, PEORIA AT NIGHT, SALT RIVER VALLEY
Center Point: Latitude: 33.5 Longitude: -112.2 (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: 14
Camera Focal Length: 400mm
Camera: N5: Nikon D3S
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

GMT Date: 20130316 (YYYYMMDD) GMT Time: 115650 (HHMMSS)
Nadir Point Latitude: 34.0, Longitude: -112.9 (Negative numbers indicate south for latitude and west for longitude)

Nadir to Photo Center Direction: Southeast
Sun Azimuth: 76 (Clockwise angle in degrees from north to the sun measured at the nadir point)
Spacecraft Altitude: 214 nautical miles (396 km)
Sun Elevation Angle: -22 (Angle in degrees between the horizon and the sun, measured at the nadir point)
Orbit Number:

Captions

Phoenix, AZ Metropolitan Area at Night

Like many large urban areas of the central and western United States, the Phoenix, AZ metropolitan area is laid out along a regular grid of city blocks and streets. While visible during the day this grid is most evident at night, when the pattern of street lighting is clearly visible from above in the case of this astronaut photograph, from the low Earth orbit vantage point of the International Space Station. The urban grid form encourages growth of a city outwards along its borders, by providing optimal access to new real estate. Fueled by the adoption of widespread personal automobile use during the 20th century, the Phoenix metropolitan area today includes 25 other municipalities (many of them largely suburban and residential in character) linked by a network of surface streets and freeways.

This astronaut photograph includes parts of several cities in the metro area including Phoenix (image right), Glendale (image center), and Peoria (image left). While the major street grid is oriented north-south, the northwest-southeast oriented Grand Avenue cuts across it at image center. Grand Avenue is a major transportation corridor through the western metropolitan area; the lighting patterns of large industrial and commercial properties are visible along its length. Other brightly lit properties include large shopping centers, strip centers, and gas stations which tend to be located at the intersections of north-south and east-west trending streets.

While much of the land area highlighted in this image is urbanized, there are several noticeably dark areas. The Phoenix Mountains at image upper right are largely public park and recreational land. To the west (image lower left), agricultural fields provide a sharp contrast to the lit streets of neighboring residential developments. The Salt River channel appears as a dark ribbon within the urban grid at image lower right.


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