This microscopic imager mosaic of the target area called “Diamond Jenness” was taken after NASA’s Mars Exploration Rover Opportunity twice used its rock abrasion tool to grind into the surface.    

The rover has been hard at work in “Endurance Crater.”  Its busy rock abrasion tool, affectionately known as the Rat, has bored nearly a dozen holes along the rover’s path down the crater slope.  On sols 177 and 178 (      , 2004), Opportunity did double duty on the target called “Diamond Jenness.” Surface debris and the bumpy shape of the rock apparently contributed to a shallow and irregular hole, only about 2 millimeters or .08 inches deep, not enough to take out all the bumps and leave a neat hole with a smooth floor.  The extremely shallow depression was then examined by the alpha particle X-ray spectrometer.  

On Sol 178, the robotic rodent dined on “Diamond Jenness” once again, grinding almost an additional 5 millimeters (about 0.2 inches). The rover then started a Mössbauer spectrometer reading of the deepened hole.  This double grinding gave the science team a unique opportunity to examine the rock at varying layers.  They are now examining the results of the double dose of Diamond Jenness.  

Image Credit:  NASA/JPL/Cornell/USGS

APPROVED BY: 

CAPTION WRITER:  Colleen Sharkey 818/625-0653 cell

RELEASE DATE:  August 2, 2004

IMAGE FILE NAME: sol_b178_rathole_diamond_jenness.jpg

SOURCE FILE NAME(S): 1MM178ILF33PER36P2957M222M1

SUMMARY INFORMATION:  MI mosaic  of Diamond Jenness post-double-Rat

NAME OF SUBMITTER: Bob Deen 

INSTITUTION: JPL

THEME/TEAM/GROUP: MIPL

SOL OF OBSERVATION:  178

EARTH DATE OF OBSERVATION:  

TITLE OF IMAGE:  Double Time on Diamond Jenness 

CAPTION:  Above

<br> USERNAME: shlieven