Spirit has completed investigations with its robotic arm on "Assemblee" rock. The investigation included pictures taken with the microscopic imager, 92 hours of Moessbauer spectrometer integration, and alpha particle X-ray spectrometer work on the target "Gruyere."
Other observations included dust devil movies and a panoramic camera image of the rock abrasion tool bit (which has worn down from extensive use because Spirit has exceeded its intended lifespan by more than 480 sols).
As of sol 571 (Aug. 11, 2005), Spirit is still approximately 100 meters (328 feet) from the summit, and the rover will continue driving towards it.
Sol-by-sol summaries
