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Topic: Safe Mode

NASA’s Hubble Space Telescope remains in Safe Mode

 

NASA Headquarters

NASA - National Aeronautics and Space AdministrationWashington, D.C. – NASA continues to work toward resuming science operations of the Hubble Space Telescope after the spacecraft entered safe mode due to a failed gyroscope (gyro) on Friday, October 5th, 2018. 

Following the gyro failure, the Hubble operations team turned on a backup gyro on the spacecraft. However, that gyro did not perform as expected, reporting rotation rates that are orders of magnitude higher than they actually are. This past week, tests were conducted to assess the condition of that backup gyro.

NASA's Hubble Space Telescope. (NASA)

NASA’s Hubble Space Telescope. (NASA)

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NASA’s Mars Curiosity rover put itself into Safe Mode over Fourth of July weekend

 

Written by Guy Webster
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – The team operating NASA’s Curiosity Mars rover is taking steps to return the rover to full activity following a precautionary stand-down over the Fourth of July weekend.

Curiosity is now communicating with ground controllers and is stable. The rover put itself into safe mode on July 2nd, ceasing most activities other than keeping itself healthy and following a prescribed sequence for resuming communications.

This May 11, 2016, self-portrait of NASA's Curiosity Mars rover shows the vehicle at the "Okoruso" drilling site on lower Mount Sharp's "Naukluft Plateau." The scene is a mosaic of multiple images taken with the arm-mounted Mars Hands Lens Imager (MAHLI). (NASA/JPL-Caltech/MSSS)

This May 11, 2016, self-portrait of NASA’s Curiosity Mars rover shows the vehicle at the “Okoruso” drilling site on lower Mount Sharp’s “Naukluft Plateau.” The scene is a mosaic of multiple images taken with the arm-mounted Mars Hands Lens Imager (MAHLI). (NASA/JPL-Caltech/MSSS)

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NASA’s Kepler Space Telescope recovers from Safe Mode

 

Written by Kepler Project Manager Roger Hunter
NASA’s Ames Research Center

NASA - National Aeronautics and Space AdministrationMoffett Field, CA – During a scheduled semi-weekly contact on Friday, May 3rd, 2013, engineers discovered that the Kepler spacecraft was in a self-protective state called a safe mode. The spacecraft was returned to science data collection just before midnight on Monday, May 6th, 2013.

The spacecraft entered thruster-controlled safe mode at about 7:30pm PDT on Wednesday, May 1st, 2013.

NASA's Kepler Spacecraft

NASA’s Kepler Spacecraft

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NASA’s Mars Odyssey Orbiter taken in and out of Standby Safe Mode after Computer fails to Reboot

 

Written by Guy Webster
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA’s Mars Odyssey orbiter experienced about 21 hours in a reduced-activity precautionary status ending at about 10:00am PDT (1:00pm EDT) on Thursday, July 12th.

The orbiter put itself in the precautionary, Earth-pointed status called safe mode, at about 1:00pm PDT (4:00pm EDT) on July 11th, as it finished a maneuver adjusting, or trimming, its orbit. Odyssey’s computer did not reboot, so diagnostic information was subsequently available from the spacecraft’s onboard memory.

NASA's Mars Odyssey spacecraft passes above Mars' south pole in this artist's concept illustration. The spacecraft has been orbiting Mars since October 24th, 2001. (Image credit: NASA/JPL)

NASA’s Mars Odyssey spacecraft passes above Mars’ south pole in this artist’s concept illustration. The spacecraft has been orbiting Mars since October 24th, 2001. (Image credit: NASA/JPL)

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NASA’s Mars Odyssey orbiter out of Safe Mode and back to Full Service

 

Written by Guy Webster
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA’s Mars Odyssey orbiter has been taken out of a protective status called safe mode. Remaining steps toward resuming all normal spacecraft activities will probably be completed by next week.

Odyssey resumed pointing downward toward Mars on Saturday, June 16th, leaving the Earth-pointed “safe mode” status that was triggered when one of its three primary reaction wheels stuck for a few minutes on June 8th, Universal Time (June 7th, Pacific Time).  Mission controllers put the orbiter’s spare reaction wheel into use in control of Odyssey’s orientation while pointed downward, or nadir.

NASA's Mars Odyssey spacecraft passes above Mars' south pole in this artist's concept illustration. The spacecraft has been orbiting Mars since October 24th, 2001. (Image credit: NASA/JPL)

NASA’s Mars Odyssey spacecraft passes above Mars’ south pole in this artist’s concept illustration. The spacecraft has been orbiting Mars since October 24th, 2001. (Image credit: NASA/JPL)

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