PIA04147: South Polar Depression

South Polar Depression


14 August 2005
This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a circular depression and a suite of eroding mesas of carbon dioxide. These features occur in the south polar residual cap of Mars. The eroding carbon dioxide creates landforms reminiscent of "Swiss cheese." The circular feature might indicate the location of a filled, buried impact crater.

Location near : 86.8°S, 111.0°W
Image width : width: ~3 km (~1.9 mi)
Illumination from : upper left
Season : Southern Spring

Cataloging Keywords:

Name Value Additional Values
Target Mars
System Mars
Target Type Planet
Mission Mars Global Surveyor (MGS)
Instrument Host Mars Global Surveyor (MGS)
Host Type Orbiter
Instrument Mars Orbiter Camera (MOC)
Extra Keywords Crater, Grayscale
Acquisition Date
Release Date 2005-08-14
Date in Caption 2005-08-14
Image Credit NASA/JPL/Malin Space Science Systems
Source photojournal.jpl.nasa.gov/catalog/PIA04147
Identifier PIA04147