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Space & Planetary Science

MRO in Safe Mode Again

By Keith Cowing
NASA Watch
June 4, 2009

Mars Reconnaissance Orbiter’s Rebooting Resembles February Event
“NASA’s Mars Reconnaissance Orbiter is in safe mode and in communications with Earth after an unexpected rebooting of its computer Wednesday evening, June 3. The spontaneous reboot resembles a Feb. 23 event on the spacecraft. Engineers concluded the most likely cause for that event was a cosmic ray or solar particle hitting electronics and causing an erroneous voltage reading. The reboot occurred at approximately 6:10 p.m. PDT (9:10 p.m. EDT) on June 3. This is the sixth time since the spacecraft’s August 2005 launch that it has entered safe mode, which is its programmed precaution when it senses a condition for which it does not know a more specific response.”

NASA Watch founder, Explorers Club Fellow, ex-NASA, Away Teams, Journalist, Space & Astrobiology, Lapsed climber.