PIA12131: Skirting an Obstacle, Opportunity's Sol 1867


Skirting an Obstacle, Opportunity’s Sol 1867

Caption:

This view from the navigation camera on NASA's Mars Exploration Rover Opportunity shows tracks left by backing out of a wind-formed ripple after the rover's wheels had started to dig too deeply into the dust and sand of the ripple.

The frames combined into this view were taken on the 1,867th Martian day, or sol, of Opportunity's mission on Mars (April 25, 2009). The scene spans 120 degrees, from southeastward on the left to westward on the right.

Two sols earlier, Opportunity drove 94.55 meters (310 feet) south-southwestward before stopping when the rover detected that its wheels were slipping more than the limit that engineers had set for the drive. That Sol 1865 (April 23, 2009) drive created the tracks that enter this scene from the left and ended with wheels on the left side of the rover partially embedded in the ripple. On Sol 1866, Opportunity began to back away from this potential trap, but moved only about 28 centimeters (11 inches). On Sol 1867, the rover backed up 3.7 meters (12 feet) before taking this picture. Subsequently, Opportunity proceeded on a path avoiding the ripple where the wheel slippage occurred.

For scale, the distance between the parallel wheel tracks is about 1 meter (about 40 inches). This view is presented as a cylindrical projection with geometric seam correction.

Cataloging Keywords:

Name Value Additional Values
Target Mars
System
Target Type Planet
Mission Mars Exploration Rover (MER)
Instrument Host Opportunity (MER-B)
Host Type Rover
Instrument Navigation Camera (Navcam)
Detector
Extra Keywords Dust, Grayscale
Acquisition Date
Release Date 2009-07-15
Date in Caption 2009-04-23 2009-04-25
Image Credit NASA/JPL-Caltech
Source photojournal.jpl.nasa.gov/catalog/PIA12131
Identifier PIA12131