Hubble space telescope goes into 'safe mode' over faulty gyroscope

Hubble space telescope fails and goes into'safe mode

Washington, Oct 9 NASA's Hubble Space Telescope has entered safe mode, following the failure of another gyroscope, but its science operations have been suspended, the U.S. space agency said.

In connection with the damage to the telescope interrupted his work and was put into safe mode. Experts at NASA's Goddard Space Flight Center and the Space Telescope Science Institute are analyzing the situation and conducting tests to find out whether the third gyro can be recovered.

Hubble is equipped with six gyroscopes, but it's been operating with only three active gyros.

In a statement NASA allayed fears by saying the telescope can still carry out scientific operations with one gyro but that activities onboard the orbiter had been suspended to give engineers a chance to fix the fault.

"It's true. Very stressful weekend".

"First step is try to bring back the last gyro, which had been off, and is being problematic", she wrote in response to astronomer Jay Strader.

NASA's preference, the post said, is to return Hubble to service in its standard three-gyro configuration.

While NASA says that reduced-gyro mode would have "relatively limited impact on the overall scientific capabilities", some astronomers are concerned that the reduced-gyro mode could adversely affect some types of observations, such as of solar system objects, that require the precision of three-gyro operations.

Since its launch in 1990, Hubble has made more than 1.3 million observations.

The largest space telescope Hubble has failed due to breakage.

Before Friday, Hubble had four working gyroscopes, also called "gyros".

'We'll work through the issues and be back'.

The device refused one of the gyros. Friday's failure means Hubble is down to just two, a situation that triggered its entry into safe mode.

"Broken gyro worked badly for about a year, and its failure was not a surprise".

"Built with multiple redundancies, Hubble had six new gyros installed during Servicing Mission-4 in 2009". It will only use one of its remaining functioning gyros, which will limit its sky coverage. That issue is keeping the spacecraft from resuming normal operations using three gyros. And the Kepler space telescope, which has discovered about 70 percent of the confirmed 3,800 exoplanets to date, is running so low on fuel that its handlers recently shut it off, to make sure it has enough propellant left to orient itself toward Earth and beam its latest data haul back to Earth next week.



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