Notices of the future
Notices of the future
.Notices of the future
Hubble enters safe mode at the failure of one of its gyroscopes.
Many have been the alarming headlines that have been written on this subject, talking about that this veteran orbital telescope had been out of service or with serious orientation problems. For peace of all, none of this is true. It is momentarily in what is known as "safe mode" for something as elementary and common sense as caution. Soon we will see it back.
But what exactly has happened to him? Let's start by remembering that the Hubble It is currently equipped with 6 gyroscopes. It does not need so many at all, but the idea of redundant elements is precisely that, to have a margin before possible losses. Three of them, the "standars" type, have been falling with the passage of time, and as planned, leaving the other three, which are improved versions and, therefore, from which a longer life is expected.
It was precisely the third and last of these gyroscopes "standard"It was the one that failed recently, which was not unforeseen. In fact it took a year showing signs that it was approaching the end of its useful life, so it was expected its imminent fall, as it happened. At that time he entered safe mode, while the technicians made the required changes to put the three improved gyros into action, although one of them was not working as well as it should have been. That is the error that the engineers are working to solve.
Even in the worst case, that is to say that this operation, which is not entirely correct, leads to loss, this does not represent a problem for the Hubble, which can perform its work perfectly with only two of them, as it has actually done on more than one occasion throughout its existence. Even with just one, he is able to continue working without a significant loss in his ability to work. That is, it is far from being "out of service", but it should serve as a reminder that this veteran's life is near its end.
Perhaps not imminent, since the various past maintenance missions left it in optimal conditions and its systems, like the gyros itself, are redundant, but the truth is that we face its final stage. The need, both in the form of new terrestrial and orbital observatories, became clearer these days.
Throughout the years, Hubble received up to 5 visits from the space shuttle, which allowed it to be repaired and improved in a number of vital parts. The STS-109 mission, which occurred in 1999, was the one that replaced all of its gyros with the current 6.
Hubble Space Telescope Malfunction Will not Last Long, NASA Says
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