PIA07077: Track of Right-Wheel Drag (Polar)


Track of Right-Wheel Drag (Polar)

Caption:

This 360-degree panorama combines several frames taken by the navigation camera on NASA's Mars Exploration Rover Spirit during the rover's 313th martian day (Nov. 19, 2004). The site, labeled Spirit site 93, is in the "Columbia Hills" inside Gusev Crater. The rover tracks point westward. Spirit had driven eastward, in reverse and dragging its right front wheel, for about 30 meters (100 feet) on the day the picture was taken. Driving backwards while dragging that wheel is a precautionary strategy to extend the usefulness of the wheel for when it is most needed, because it has developed more friction than the other wheels. The right-hand track in this look backwards shows how the dragging disturbed the soil. This view is presented in a polar projection with geometric seam correction.

Cataloging Keywords:

Name Value Additional Values
Target Mars
System
Target Type Planet
Mission Mars Exploration Rover (MER)
Instrument Host Spirit (MER-A)
Host Type Rover
Instrument Navigation Camera (Navcam)
Detector
Extra Keywords Crater, Grayscale
Acquisition Date
Release Date 2004-11-24
Date in Caption 2004-11-19
Image Credit NASA/JPL
Source photojournal.jpl.nasa.gov/catalog/PIA07077
Identifier PIA07077