Mars Rover Curiosity in Artist's Concept, Close-up
This artist concept features NASA's Mars Science Laboratory Curiosity rover,

July 17: Curiosity Swaps Computers, Gets Updated Arrival Data

Activities continue through July 20 to prepare Curiosity’s redundant main computers, or Rover Compute Elements, for arrival at Mars. Today, the computer that has been operating as Curiosity’s prime computer is being swapped with the backup computer. On Wednesday July 18, that computer will be cold reset, or rebooted, while in online, or backup mode, following the same process used to cold reset the redundant computer on July 16. In addition, beginning today and continuing through July 20, updated flight sequences and communications parameters for Curiosity’s entry, descent and landing and surface operations will be uploaded to the spacecraft.

July 16: Curiosity Computer Preps for Arrival

Beginning today, Curiosity's redundant main computers, or Rover Compute Elements, will be power-cycled while in the online, or backup mode. The process, called a cold reset, reboots the computer, resetting it to a predictable, default state prior to the mission's arrival at Mars. This activity begins today with the reboot of the backup computer while in the online state and will continue through July 20. Tomorrow, the prime and backup computers will be swapped, and the reboot process will be repeated on Thursday with the other computer.

July 13: Radiation Instrument Finishes Inflight Measurements

The Radiation Assessment Detector instrument on Curiosity has finished the measurements it had been making during its flight from Earth to Mars. It will be configured for surface operations and turned off today and remain turned off until after landing.

July 12: MSL Team Has Final Test of Landing Procedures

Today, the Mars Science Laboratory flight team is conducting a final operations readiness test of entry, descent and landing procedures in preparation for Curiosity's landing on Aug. 5, PDT.

July 11: MSL Complete Turn

The Mars Science Laboratory Spacecraft completed an attitude control turn today, adjusting its orientation for keeping its medium-gain antenna pointed toward Earth for communications. This was the third-to-last attitude control turn planned before landing day.

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