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Daily Updates - June 3, 2005
Opportunity Status at end of sol 476-483

Opportunity continues to make progress out of the dune. Recent sols have seen a slight decrease in slip and a decrease of the bogie angles, which might indicate that the rover has crested a dune. The bogie supports the rear and middle wheels, allowing the wheels to move up and down in response to the terrain. The bogie angle is the angle that the support beam makes to the horizontal.

Since the rover began making its way out of the sand trap last month, it has driven enough to have moved 177.2 meters (581 feet) if there were no slippage, and has made actual forward progress of 93 centimeters (3 feet).

Weather report: Atmospheric opacity (measured as "tau") has increased over the past few sols, decreasing the amount of solar energy received by Opportunity. The rover has still been able to drive every sol, but has had to use the deep-sleep mode on most nights to save energy.

Sol-by-sol summaries:
Sol 476 (beginning on May 26, 2005): 12 meters (39 feet) commanded, 5.5 centimeters (2.2 inches) progress

Sol 477: 12 meters (39 feet) commanded, 11.2 meters (37 feet) executed, 4.9 centimeters (2 inches) progress. (Visual odometry indicated that the rover had gone farther than it had, and flight software stopped the drive early.)

Sol 478: 12 meters (39 feet) commanded, 5.2 meters (17 feet) executed (due to the same issue with visual odometry), 2.2 centimeters (0.9 inch) progress.

Sol 479: 12 meters (39 feet) commanded and executed, 5.9 centimeters (2.3 inches) progress.

Sol 480: 12 meters (39 feet) commanded and executed, 6.3 centimeters (2.5 inches) progress.

Sol 481: 20 meters (66 feet) commanded and executed, 12.9 centimeters (5.1 inches) progress.

Sol 482: 20 meters (66 feet) commanded and executed, 10.7 centimeters (4.2 inches) progress.

Sol 483 (ending on June 3, 2005): 20 meters (66 feet) commanded and executed, about 13 centimeters (5.1 inches) progress.

Opportunity Daily Update Archive