Opportunity Rover Timeline For 2005 April - 2005 April To April 30

2005 April To April 30

sol 449-455, May 6, 2005: Testing on Earth Before Moving on Mars

Opportunity is imaging the plains and performing atmospheric science observations while waiting for engineers on Earth to give it the go-ahead to move. The team is diligently working to determine why Opportunity dug itself into a small dune, the best way to exit the dune, and what added precautions to use during future driving.

Sol summary:

Sols 449 to 455 (April 29 to May 5, 2005):

In JPL's In-situ Instrument Laboratory sandbox, engineers, scientists and even the project manager have been mixing sandy and powdery materials, digging holes and building dunes. A mixture was concocted to simulate properties of the soil underneath Opportunity, using sand, clay and diatomaceous earth (silica-rich powder composed mainly of microscopic plant shells, used in these tests for its texture, not its fossil origin). The team wants to have a full understanding of how Opportunity will respond before commanding it to back out of its current position.