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Astronaut Photography of Earth - Display Record

ISS007-E-5697

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	File Name	File Size (bytes)	Width	Height	Annotated	Cropped	Purpose	Comments
View	ISS007-E-5697.JPG	56978	540	405	Yes	Yes	NASA's Earth Observatory web site
View	ISS007-E-5697.JPG	56978	540	405	Yes	Yes	NASA's Earth Observatory web site	Color adjusted
View	ISS007-E-5697.JPG	80363	639	435	No	No
View	ISS007-E-5697.JPG	84651	540	352			Photographic Highlights	(resized 540 px images)
View	ISS007-E-5697.JPG	1064537	1000	651		Yes

Large Images to Request for Downloading

	File Name	File Size (bytes)	Width	Height	Annotated	Cropped	Purpose	Comments
Request	ISS007-E-5697.JPG	325963	1000	651			Photographic Highlights	(actual files used)
Request	ISS007-E-5697.JPG	1180705	3032	2064	No	No	NASA's Earth Observatory web site
Request	ISS007-E-5697_2.JPG	5589899	6144	4068	No	No	Presentation	Earth Sciences Results Briefing/Ed Lu

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Identification

Mission: ISS007 Roll: E Frame: 5697 Mission ID on the Film or image: ISS007
Country or Geographic Name: AUSTRALIA-NT
Features: GOSSES BLUFF IMPACT CRATER
Center Point Latitude: -24.0 Center Point Longitude: 132.5 (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: 30
Camera Focal Length: 180mm
Camera: E4: Kodak DCS760C Electronic Still Camera
Film: 3060E : 3060 x 2036 pixel CCD, RGBG array.

Quality

Film Exposure:
Percentage of Cloud Cover: 10 (0-10)

Nadir

Date: 20030520 (YYYYMMDD)GMT Time: 225637 (HHMMSS)
Nadir Point Latitude: -22.8, Longitude: 134.1 (Negative numbers indicate south for latitude and west for longitude)
Nadir to Photo Center Direction: Southwest
Sun Azimuth: 59 (Clockwise angle in degrees from north to the sun measured at the nadir point)
Spacecraft Altitude: 211 nautical miles (391 km)
Sun Elevation Angle: 17 (Angle in degrees between the horizon and the sun, measured at the nadir point)
Orbit Number: 1675

Captions

Impact craters, like those we observe on the moon, also occur on Earth. They result from the collisions of extraterrestrial bodies (like meteorites, asteroids or comets) with the Earth. Planetary scientists study Earth’s impact craters to gain insight about the early history of the Earth and the Solar System. Recent studies indicate that large impacts on Earth may have played an important role in the succession of life on Earth.

Australia is a very good place to observe and study impact craters. Much of the Australian surface is very old, so Australia has collected more impacts than many other parts of the world. Because of the dry climate, the craters haven’t weathered away, nor are they hidden by dense vegetation.

This image shows Gosses Bluff, an impact crater sandwiched between the Macdonnell Range to the north and the James Range to the south in Australia’s Northern Territory—it is about 160 km west of Alice Springs. It is one of the most studied of the Australian impact craters. The impactor, an asteroid or comet, was probably about 1 km in diameter and crashed into the earth about 142 million years ago. The isolated circular feature within the crater consists of a central ring of hills about 4.5 km in diameter. The grayish feature surrounding the inner ring probably marks the original boundary of the outer rim.

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