PIA06978: Secondary Field
 Target Name:  Mars
 Is a satellite of:  Sol (our sun)
 Mission:  Mars Global Surveyor (MGS)
 Spacecraft:  Mars Global Surveyor Orbiter
 Instrument:  Mars Orbiter Camera (MOC)
 Product Size:  672 x 1008 pixels (w x h)
 Produced By:  Malin Space Science Systems
 Producer ID:  MOC2-897
 Full-Res TIFF:  PIA06978.tif (678.3 kB)
 Full-Res JPEG:  PIA06978.jpg (118.4 kB)

Click on the image above to download a moderately sized image in JPEG format (possibly reduced in size from original)

Original Caption Released with Image:

1 November 2004
The upper right (northeast) quarter of this Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a concentrated field of small impact craters. The features form a broad line running approximately diagonal from northwest toward southeast. These craters pocked windblown ripples as well as the smooth-surfaced terrain. These are secondary craters. That is, they formed second, as the result of a larger impact, probably within a hundred kilometers or so of this site. Secondary craters form from impact of the debris kicked-up by the larger impact event. Instead of rocks from space (like a meteor), these were formed by rocks from a nearby place on Mars. This image is located near 29.7S, 249.0W. The picture covers an area about 3 km (1.9 mi) wide. Sunlight illuminates the scene from the upper left.

Image Credit:
NASA/JPL/Malin Space Science Systems

Image Addition Date:
2004-11-01