PIA02480: The Sculptured Surface of Eros
 Target Name:  Eros
 Is a satellite of:  Sol (our sun)
 Mission:  NEAR Shoemaker 
 Spacecraft:  NEAR Shoemaker
 Instrument:  Multi-Spectral Imager 
 Product Size:  1064 x 821 pixels (w x h)
 Produced By:  Johns Hopkins University/APL
 Addition Date:  2000-06-10
 Primary Data Set:  NEAR Home Page
 Full-Res TIFF:  PIA02480.tif (170.6 kB)
 Full-Res JPEG:  PIA02480.jpg (37.19 kB)

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NEAR takes several images mosaics of Eros daily for purposes of navigating the spacecraft. The one shown here was taken February 29, 2000, from a range of 289 kilometers (180 miles). It shows features as small as 30 meters (100 feet) across. All of the mosaics show the same territory over and over, but changes in lighting plus the gradual decrease in the spacecraft's range to the surface are both constantly bringing out new details.

The very oblique illumination in this mosaic is ideal for bringing out small landforms. Many parts of the asteroid have "grooves," linear troughs about 100 meters (330 feet) wide and several kilometers long. Similar features have also been observed on other asteroids such as Gaspra, and they are especially numerous on Mars' moon Phobos. Their origin isn't completely understood, but formation of the grooves probably involves fracturing of the asteroid's subsurface in some way.

Built and managed by The Johns Hopkins University Applied Physics Laboratory, Laurel, Maryland, NEAR was the first spacecraft launched in NASA's Discovery Program of low-cost, small-scale planetary missions. See the NEAR web page at http://near.jhuapl.edu/ for more details.

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