Roll-Off Dress Rehearsal at JPL
Jet Propulsion Laboratory https://www.jpl.nasa.gov/ Jan. 14, 2004
This image shows a test rover as it attempts a complete 115-degree turn on the lander in the JPL In-Situ Instruments Laboratory, or "testbed." This is where engineers tested the rover's three-point turn before completing the manuever with the Mars Exploration Rover Spirit at Gusev Crater on Mars. At this point, the test rover has turned 95 degrees, with 115 degrees being its goal position.