Апреля 20, 2019

Hubble gyroscope failure puts space telescope into safe mode

09 Октября 2018, 01:22 | Edward Lowe

The message said "mission experts" were working to fix the problem.

As a result, Hubble is in so-called safe mode with non-essential systems turned off, putting all science observations on hold.

Astronomers are anxiously awaiting the launch of the James Webb Space Telescope, scheduled for 2021, but until then Hubble remains the most powerful space telescope in the sky - and the best tool for peering deep into space. NASA replaced all six of Hubble's gyroscopes in the final 2009 servicing mission.

According to Deputy Hubble Mission Head Rachel Osten, the single-gyro mode is not much worse than two gyros. The safe mode is meant to keep the telescope "precisely pointed" for a long duration, the space agency explains, stating that experts are working on fixing the problem.

'First step is try to bring back the last gyro, which had been off, and is being problematic'. Gyroscopes use the principle of angular momentum to track movements, which allows the satellite to ensure it's pointed in the right direction.

Launched in 1990, Hubble has had trouble with its gyroscopes before.

Читайте также: McConnell now open to high court nomination in election year

"Not really scary, we knew it was coming". The newly failed gyro is the last of that old design, and it lasted about six months longer than expected.

But don't panic: while the telescope needs three gyroscopes for "optimal efficiency", it can operate with less, Space.com reported.

The telescope could work with as few as one or two gyroscopes, although that leaves little room for additional breakdowns. The team is now working to bring another gyro online, but Hubble may be limited in what it can do going forward.

She explained that there are plans in place to deal with the eventuality of the HST dropping down to a one-gyro mode when two remained. "Which the Astro community wants desperately".

Hubble's primary mirror is 2.4 meters (7 feet, 10.5 inches) across and in total is 13.3 meters (43.5 feet) long - the length of a large school bus.

При любом использовании материалов сайта и дочерних проектов, гиперссылка на обязательна.
«» 2007 - 2019 Copyright.
Автоматизированное извлечение информации сайта запрещено.

Код для вставки в блог

Other News

Trending Now

How Pogba saved Mourinho's job at Manchester United
Yet Spanish outlet Ok Diario claim United may not sack Mourinho just yet. But Juan Mata sparked a comeback with a 70th-minute free-kick.

Brazil exit polls point to wave of support for right
If Bolsonaro - who was stabbed during the election - manages more than 50 percent, he will win the presidency outright. Some recent polls have projected he could beat Bolsonaro in the second round .

Project xCloud announced by Microsoft
At E3 2018 in June, head of Xbox Phil Spencer took the Xbox stage to announce Microsoft's plans for streaming-based games . However, there are internal tests for Project xCloud going on right now.

Brazilian women protest far-right presidential hopeful
Voters in Brazil head to the polls on Sunday in an election that could reshape the political landscape of South America. The video was published Thursday from the party's Twitter account and comes as Bolsonaro is seeing a rise in the polls.

Barbara Bush Wedding: Former First Daughter Gets Married
And some details: "The bride wore an ivory silk crepe Vera Wang custom gown and was escorted by her father and grandfather". It was just like her: private (only family!) and full of love (and yes lots of tears!)".

Former Trump aide Hicks joins Fox as communications chief
She left the White House in April, after rising to prominence as a close Trump adviser during the 2016 presidential campaign. The hiring of Hicks is sure to further fuel criticism that Fox News has become largely a mouthpiece for Trump.

Hazard is happy at Chelsea - Essien
They've lost just one of their last 11 games there (W8 D2), winning each of their last three in a row. Meanwhile, defender Antonio Rudiger has pulled out of the Germany squad with a groin problem.

Canadian Denis Shapovalov loses to Medvedev in semifinal at Japan Open
The Russian saved the only break point he faced, and has now held serve in 36 of 40 service games this week. Klaasen and Venus dispatched Britain's Joe Salisbury and Japan's Yasutaka Uchiyama 4-6, 7-6 (2), 18-16.

Iran Sympathizes with Congo over Deadly Tanker Blast
The accident happened in the village of Mbuta, the Democratic Republic of Congo about 130 km (80 miles) from the capital. The ministry said 20 people died immediately and of more than 100 transferred to a hospital, 19 later died.

Turkey summons Saudi envoy as Khashoggi row snowballs
A Turkish official also said Saudi Arabia's envoy to Ankara had been summoned to the foreign ministry for a second time on Sunday. Crown Prince Mohammed bin Salman has previously said officials are welcome to conduct a search as there is nothing to hide.