In this April 25, 1990 photograph provided by NASA, most of the giant Hubble Space Telescope can be seen as it is suspended in space by Discovery’s Remote Manipulator System (RMS) following the deployment of part of its solar panels and antennae. This was among the first photos NASA released on April 30 from the five-day STS-31 mission. The Hubble Space Telescope, one of NASA’S crowning glories, marks its 25th anniversary on Friday, April 24,2015 With more than 1 million observations, including those of the farthest and oldest galaxies ever beholden by humanity, no man-made satellite has touched as many minds or hearts as Hubble. (NASA via AP)

NASA’s Hubble Space Telescope is still in safe mode as of Monday morning, as engineers work to diagnose and fix a gyroscope failure that put the 25-year-old orbital observatory out of commission on October 5.

For the moment, Hubble isn’t alone in its convalescence. NASA’s Chandra X-ray observatory went into safe mode on October 10 following a glitch in which a gyroscope sent 3 seconds of bad data to Chandra’s on-board computer. Using the bad data, the computer calculated an incorrect and apparently somewhat alarming momentum for the telescope. The telescope automatically put itself into safe mode, but NASA engineers say they’re switching to a backup gyroscope, leaving the glitchy one in reserve, and uploading some flight software patches. Chandra is already pointing normally and will back to science as usual by the end of this week, around October 20.

That’s an impressive recovery for the 19-year-old space telescope, which is now well into its extended mission. Space Shuttle Columbia, in a mission commanded by astronaut Eileen Collins, carried the x-ray observatory into orbit in1999 Chandra became the third of NASA’s four Great Observatories, alongside Hubble, the Compton Gamma Ray Observatory (which de-orbited in 2000), and the Spitzer Space Telescope, which is still doing thermal infrared astronomy in low Earth orbit. Chandra’s name means “moon” in Sanskrit and is also a tribute to astronomer Subrahmanyan Chandrasekhar.

What Do You Do When The Backup Fails?

Hubble’s gyroscope problem may be less easy to fix, but NASA says the telescope will return to normal science operations one way or another. Hubble relies on its gyroscopes to measure the speed at which the telescope is turning; with data from three gyros, the telescope’s onboard computer can control its orientation with incredible precision, but it can still operate with one or two, albeit with a slightly more limited view of the sky.

When things started going wrong last week, three of Hubble’s six gyros were working together to help point the telescope and hold it on target. Two others had already failed, and one was powered down, held in reserve in case of a failure. Then one of the three working gyros failed.

“The gyro that failed had been exhibiting end-of-life behavior for approximately a year, and its failure was not unexpected,” wrote NASA in a press release on October 8. Engineers fired up the reserve gyro, but it, too, failed — or at least, “analysis of spacecraft telemetry indicated that it was not performing at the level required for operations,” and by NASA’s high standards, that’s pretty much a failure.

Specifically, the backup gyro reported that the telescope was rotating much, much faster than it actually was. “This is similar to a speedometer on your car continuously showing that your speed is 100 miles per hour faster than it actually is; it properly shows when your car speeds up or slows down, and by how much, but the actual speed is inaccurate,” the agency explained in an October 12 update. So NASA put Hubble into safe mode while engineers work to diagnose the problem and figure out what to do. If they find a way to fix the uncooperative gyro — probably with a software patch — Hubble will get back to work with three gyros and no backups. But if the problem can’t be fixed, Hubble will continue operating with one working gyro and one backup.

In this image provided by NASA/JSC, astronauts Steven L. Smith and John M. Grunsfeld are photographed during an extravehicular activity (EVA) during the December 1999 Hubble servicing mission of STS-103, flown by Discovery. The Hubble Space Telescope, one of NASA’S crowning glories, marks its 25th anniversary on Friday, April 24,2015 With more than 1 million observations, including those of the farthest and oldest galaxies ever beholden by humanity, no man-made satellite has touched as many minds or hearts as Hubble. (NASA/JSC via AP)

Hubble’s Story Is Also About The Space Shuttle

The current set of gyros have been aboard since 2009, a parting gift from the final shuttle repair mission to Hubble as replacements for the original set of six. In 2005, hoping to stretch the lifespan of Hubble’s equipment and thus extend its mission, NASA switched the telescope from operating with three gyros to just two, with two more as backup. That left Hubble able to point a bit less precisely than it could with three gyros, but still capable of making very detailed astronomical observations. But then a gyro failed in 2007, and it turned out that the electric wires powering the gyros’ motors were corroded, thanks to the oxygen-pressurized air used to pump the thick fluid in which the gyros are suspended. The replacement gyros delivered in 2009 used nitrogen instead of oxygen, and engineers expected them to last much longer than the first batch.

As Kevin Anderton pointed out, if the space shuttle or a successor were still flying, a crewed mission could potentially carry new gyros to Hubble or repair the existing ones. Hubble’s designers had the space shuttle in mind when they designed the telescope with relatively easily removable instruments, designed for replacement by astronauts on servicing missions. Five total missions performed repairs or upgrades on Hubble from 1993 to 2009, but at the moment, options are pretty limited, and there’s no true replacement for the space shuttle on the horizon. Boeing’s CST-100 Starliner and SpaceX’s Crew Dragon are both focused primarily on crew transport: carrying astronauts to the Interational Space Station or, eventually, others. Their designs so far appear to lack the capability to house and support a crew in orbit for several days for a maintenance mission to Hubble, and they don’t have the shuttle’s cargo bay or robotic arm.

Hubble’s story has been interwoven with that of the Shuttle program in some interesting ways. The shuttle Challenger exploded during its January 1986 launch, taking the lives of the entire crew. NASA promptly grounded the rest of the shuttle fleet while a committee investigated the tragedy, and Hubble’s planned launch October 1986 launch got pushed back to April1990 After launch, the $1.5 billion telescope would have been a nearly complete loss for astronomy if a shuttle mission hadn’t been able to install corrective optics. And a final mission in 2009, which removed those optics and replaced several of Hubble’s instruments with upgraded versions, was delayed much like the launch mission, by the catastrophic loss of a Space Shuttle — this time Columbia. And now, with the shuttle program ended partially as a result of Columbia’s loss, Hubble is on its own 540 km (340 miles) above terra firma.

It’s Nowhere Near Over

Well, not entirely on its own; it has long-distance support from engineers here on Earth, who are actively working to find solutions. And NASA engineers don’t give up easily on their science robots; NASA’s still trying to contact Opportunity, keeping vigil as the dust storm on Mars slowly dissipates. NASA says that Hubble will be sending home detailed images of the cosmos for years to come. But NASA says that won’t happen for years to come. Just last week, astronomers got their first look at a moon orbiting an exoplanet, courtesy of the 19-year-old space telescope. And Hubble has another decade or two left, if all goes well, so there may be many more such discoveries ahead.

And if all goes well, it will be joined in 2021 by the James Webb Space Telescope. Unlike Hubble, Webb wasn’t designed for shuttle maintenance, and it will orbit 1.5 million km (932,000 miles) away at a point in space called the second Lagrange point, so far away from Earth that Earth’s gravity and the Sun’s actually balance each other. That distance would have put James Webb well beyond the reach of even a space shuttle mission in the event of a problem — but James Webb’s design still includes a docking ring, just in case.

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In this April25,1990 picture offered by NASA, the majority of the huge Hubble Area Telescope can be viewed as it is suspended in area by Discovery’s Remote Manipulator System (RMS) following the release of part of its photovoltaic panels and antennae. This was amongst the very first images NASA launched on April 30 from the five-day STS-31 objective. The Hubble Area Telescope, among NASA’S crowning splendors, marks its 25 th anniversary on Friday, April 24,2015 With more than 1 million observations, consisting of those of the farthest and earliest galaxies ever beholden by humankind, no manufactured satellite has actually touched as numerous minds or hearts as Hubble. (NASA through AP)

NASA’s Hubble Area Telescope is still in safe mode since Monday early morning, as engineers work to detect and repair a gyroscope failure that put the25- year-old orbital observatory out of commission on October 5.

(************

) For the minute, Hubble isn’t alone in its convalescence. NASA’s Chandra X-ray observatory entered into safe mode on October 10 following a problem in which a gyroscope sent out 3 seconds of bad information to Chandra’s on-board computer system. Utilizing the bad information, the computer system computed an inaccurate and obviously rather worrying momentum for the telescope. The telescope immediately put itself into safe mode, however NASA engineers state they’re changing to a backup gyroscope, leaving the glitchy one in reserve, and publishing some flight software application spots. Chandra is currently pointing usually and will back to science as typical by the end of this week, around October 20.

That’s an excellent healing for the 19- year-old area telescope, which is now well into its prolonged objective. Area Shuttle Bus Columbia, in an objective commanded by astronaut Eileen Collins, brought the x-ray observatory into orbit in1999 Chandra ended up being the 3rd of NASA’s 4 Terrific Observatories, along with Hubble, the Compton Gamma Ray Observatory (which de-orbited in 2000), and the Spitzer Area Telescope, which is still doing thermal infrared astronomy in low Earth orbit. Chandra’s name suggests “moon” in Sanskrit and is likewise a homage to astronomer Subrahmanyan Chandrasekhar

(*************** )What Do You Do When The Backup Stops working?

Hubble’s gyroscope issue might be less simple to repair, however NASA states the telescope will go back to typical science operations one method or another. Hubble counts on its gyroscopes to determine the speed at which the telescope is turning; with information from 3 gyros, the telescope’s onboard computer system can manage its orientation with unbelievable accuracy, however it can still run with a couple of, albeit with a somewhat more minimal view of the sky.

When things began failing recently, 3 of Hubble’s 6 gyros were collaborating to assist point the telescope and hold it on target. 2 others had actually currently stopped working, and one was powered down, kept in reserve in case of a failure. Then among the 3 working gyros stopped working.

(***************** )

” The gyro that stopped working had actually been showing end-of-life habits for around a year, and its failure was not unforeseen,” composed NASA in a news release on October 8 Engineers fired up the reserve gyro, however it, too, stopped working– or a minimum of, “analysis of spacecraft telemetry suggested that it was not carrying out at the level needed for operations,” and by NASA’s high requirements, that’s basically a failure.

Particularly, the backup gyro reported that the telescope was turning much, much faster than it really was. “This resembles a speedometer on your automobile continually revealing that your speed is 100 miles per hour quicker than it really is; it appropriately reveals when your automobile accelerate or decreases, and by just how much, however the real speed is unreliable,” the firm discussed in an October 12 upgrade. So NASA put Hubble into safe mode while engineers work to detect the issue and find out what to do. If they discover a method to repair the uncooperative gyro– most likely with a software application spot– Hubble will return to deal with 3 gyros and no backups. However if the issue can’t be repaired, Hubble will continue running with one working gyro and one backup.

In this image offered by NASA/JSC, astronauts Steven L. Smith and John M. Grunsfeld are photographed throughout an extravehicular activity (EVA) throughout the December 1999 Hubble servicing objective of STS-103, zipped Discovery. The Hubble Area Telescope, among NASA’S crowning splendors, marks its 25 th anniversary on Friday, April 24,2015 With more than 1 million observations, consisting of those of the farthest and earliest galaxies ever beholden by humankind, no manufactured satellite has actually touched as numerous minds or hearts as Hubble. (NASA/JSC through AP)

Hubble’s Story Is Likewise About The Area Shuttle Bus

The present set of gyros have actually been aboard considering that 2009, a parting present from the last shuttle bus repair work objective to Hubble as replacements for the initial set of 6. In 2005, intending to extend the life-span of Hubble’s devices and therefore extend its objective, NASA changed the telescope from running with 3 gyros to simply 2, with 2 more as backup. That left Hubble able to point a bit less exactly than it might with 3 gyros, however still efficient in making extremely in-depth huge observations. However then a gyro stopped working in 2007, and it ended up that the electrical wires powering the gyros’ motors were worn away, thanks to the oxygen-pressurized air utilized to pump the thick fluid in which the gyros are suspended. The replacement gyros provided in 2009 utilized nitrogen rather of oxygen, and engineers anticipated them to last a lot longer than the very first batch.

As Kevin Anderton mentioned, if the area shuttle bus or a follower were still flying, a crewed objective might possibly bring brand-new gyros to Hubble or fix the existing ones. Hubble’s designers had the area shuttle bus in mind when they developed the telescope with fairly quickly detachable instruments, developed for replacement by astronauts on maintenance objectives. 5 overall objectives carried out repair work or upgrades on Hubble from 1993 to 2009, however at the minute, choices are quite restricted, and there’s no real replacement for the area shuttle bus on the horizon. Boeing’s CST-100 Starliner and SpaceX’s Team Dragon are both focused mostly on team transportation: bring astronauts to the Interational Spaceport Station or, ultimately, others. Their styles up until now appear to do not have the ability to home and support a team in orbit for numerous days for an upkeep objective to Hubble, and they do not have the shuttle bus’s freight bay or robotic arm

Hubble’s story has actually been linked with that of the Shuttle bus program in some fascinating methods. The shuttle bus Opposition blew up throughout its January 1986 launch, taking the lives of the whole team. NASA immediately grounded the remainder of the shuttle bus fleet while a committee examined the disaster, and Hubble’s prepared launch October 1986 launch got pressed back to April1990 After launch, the $1.5 billion telescope would have been an almost total loss for astronomy if a shuttle bus objective had not had the ability to set up restorative optics And a last objective in 2009, which eliminated those optics and changed numerous of Hubble’s instruments with updated variations, was postponed just like the launch objective, by the disastrous loss of an Area Shuttle bus– this time Columbia And now, with the shuttle bus program ended partly as an outcome of Columbia’s loss, Hubble is on its own 540 km (340 miles) above terra firma

It’s No Place Near Over

Well, not completely by itself; it has long-distance assistance from engineers here in the world, who are actively working to discover options. And NASA engineers do not quit quickly on their science robotics; NASA’s still attempting to call Chance, keeping vigil as the dust storm on Mars gradually dissipates NASA states that Hubble will be sending out house in-depth pictures of the universes for several years to come. However NASA states that will not occur for several years to come. Simply recently, astronomers got their very first take a look at a moon orbiting an exoplanet, thanks to the 19- year-old area telescope. And Hubble has another years or 2 left, if all works out, so there might be much more such discoveries ahead.

And if all works out, it will be taken part 2021 by the James Webb Area Telescope. Unlike Hubble, Webb wasn’t developed for shuttle bus upkeep, and it will orbit 1.5 million km (932,000 miles) away at a point in area called the 2nd Lagrange point, up until now far from Earth that Earth’s gravity and the Sun’s really balance each other. That range would have put James Webb well beyond the reach of even an area shuttle bus objective in case of an issue– however James Webb’s style still consists of a docking ring, simply in case.

” readability =”135
720951937″ >

.

.

In this April 25, 1990 picture offered by NASA, the majority of the huge Hubble Area Telescope can be viewed as it is suspended in area by Discovery’s Remote Manipulator System (RMS) following the release of part of its photovoltaic panels and antennae. This was amongst the very first images NASA launched on April 30 from the five-day STS – 31 objective. The Hubble Area Telescope, among NASA’S crowning splendors, marks its 25 th anniversary on Friday, April 24,2015 With more than 1 million observations, consisting of those of the farthest and earliest galaxies ever beholden by humankind, no manufactured satellite has actually touched as numerous minds or hearts as Hubble. (NASA through AP)

.

.

NASA’s Hubble Area Telescope is still in safe mode since Monday early morning, as engineers work to detect and repair a gyroscope failure that put the 25 – year-old orbital observatory out of commission on October 5.

For the minute, Hubble isn’t alone in its convalescence. NASA’s Chandra X-ray observatory entered into safe mode on October 10 following a problem in which a gyroscope sent out 3 seconds of bad information to Chandra’s on-board computer system. Utilizing the bad information, the computer system computed an inaccurate and obviously rather worrying momentum for the telescope. The telescope immediately put itself into safe mode, however NASA engineers state they’re changing to a backup gyroscope, leaving the glitchy one in reserve, and publishing some flight software application spots. Chandra is currently pointing usually and will back to science as typical by the end of this week, around October20

.

That’s an excellent healing for the 19 – year-old area telescope, which is now well into its prolonged objective. Area Shuttle Bus Columbia, in an objective commanded by astronaut Eileen Collins, brought the x-ray observatory into orbit in1999 Chandra ended up being the 3rd of NASA’s 4 Terrific Observatories, along with Hubble, the Compton Gamma Ray Observatory (which de-orbited in 2000), and the Spitzer Area Telescope, which is still doing thermal infrared astronomy in low Earth orbit. Chandra’s name suggests “moon” in Sanskrit and is likewise a homage to astronomer Subrahmanyan Chandrasekhar

.

What Do You Do When The Backup Stops working?

Hubble’s gyroscope issue might be less simple to repair, however NASA states the telescope will go back to typical science operations one method or another. Hubble counts on its gyroscopes to determine the speed at which the telescope is turning; with information from 3 gyros, the telescope’s onboard computer system can manage its orientation with unbelievable accuracy, however it can still run with a couple of, albeit with a somewhat more minimal view of the sky.

When things began failing recently, 3 of Hubble’s 6 gyros were collaborating to assist point the telescope and hold it on target. 2 others had actually currently stopped working, and one was powered down, kept in reserve in case of a failure. Then among the 3 working gyros stopped working.

“The gyro that stopped working had actually been showing end-of-life habits for around a year, and its failure was not unforeseen,” composed NASA in a news release on October 8 Engineers fired up the reserve gyro, however it, too, stopped working– or a minimum of, “analysis of spacecraft telemetry suggested that it was not carrying out at the level needed for operations,” and by NASA’s high requirements, that’s basically a failure.

Particularly, the backup gyro reported that the telescope was turning much, much faster than it really was. “This resembles a speedometer on your automobile continually revealing that your speed is 100 miles per hour quicker than it really is; it appropriately reveals when your automobile accelerate or decreases, and by just how much, however the real speed is unreliable,” the firm discussed in an October 12 upgrade. So NASA put Hubble into safe mode while engineers work to detect the issue and find out what to do. If they discover a method to repair the uncooperative gyro– most likely with a software application spot– Hubble will return to deal with 3 gyros and no backups. However if the issue can’t be repaired, Hubble will continue running with one working gyro and one backup.

.

.

In this image offered by NASA/JSC, astronauts Steven L. Smith and John M. Grunsfeld are photographed throughout an extravehicular activity (EVA) throughout the December 1999 Hubble servicing objective of STS – 103, zipped Discovery. The Hubble Area Telescope, among NASA’S crowning splendors, marks its 25 th anniversary on Friday, April 24,2015 With more than 1 million observations, consisting of those of the farthest and earliest galaxies ever beholden by humankind, no manufactured satellite has actually touched as numerous minds or hearts as Hubble. (NASA/JSC through AP)

.

.

Hubble’s Story Is Likewise About The Area Shuttle Bus

The present set of gyros have actually been aboard considering that 2009, a parting present from the last shuttle bus repair work objective to Hubble as replacements for the initial set of 6. In 2005, intending to extend the life-span of Hubble’s devices and therefore extend its objective, NASA changed the telescope from running with 3 gyros to simply 2, with 2 more as backup. That left Hubble able to point a bit less exactly than it might with 3 gyros, however still efficient in making extremely in-depth huge observations. However then a gyro stopped working in 2007, and it ended up that the electrical wires powering the gyros’ motors were worn away, thanks to the oxygen-pressurized air utilized to pump the thick fluid in which the gyros are suspended. The replacement gyros provided in 2009 utilized nitrogen rather of oxygen, and engineers anticipated them to last a lot longer than the very first batch.

As Kevin Anderton mentioned , if the area shuttle bus or a follower were still flying, a crewed objective might possibly bring brand-new gyros to Hubble or fix the existing ones. Hubble’s designers had the area shuttle bus in mind when they developed the telescope with fairly quickly detachable instruments, developed for replacement by astronauts on maintenance objectives. 5 overall objectives carried out repair work or upgrades on Hubble from 1993 to 2009, however at the minute, choices are quite restricted, and there’s no real replacement for the area shuttle bus on the horizon. Boeing’s CST – 100 Starliner and SpaceX’s Team Dragon are both focused mostly on team transportation: bring astronauts to the Interational Spaceport Station or, ultimately, others. Their styles up until now appear to do not have the ability to home and support a team in orbit for numerous days for an upkeep objective to Hubble, and they do not have the shuttle bus’s freight bay or robotic arm

.

Hubble’s story has actually been linked with that of the Shuttle bus program in some fascinating methods. The shuttle bus Opposition blew up throughout its January 1986 launch, taking the lives of the whole team. NASA immediately grounded the remainder of the shuttle bus fleet while a committee examined the disaster, and Hubble’s prepared launch October 1986 launch got pressed back to April1990 After launch, the $ 1.5 billion telescope would have been an almost total loss for astronomy if a shuttle bus objective had not had the ability to set up restorative optics And a last objective in 2009, which eliminated those optics and changed numerous of Hubble’s instruments with updated variations, was postponed just like the launch objective, by the disastrous loss of an Area Shuttle bus– this time Columbia And now, with the shuttle bus program ended partly as an outcome of Columbia’s loss, Hubble is on its own 540 km (340 miles) above terra firma

.

It’s No Place Near Over

Well, not completely by itself; it has long-distance assistance from engineers here in the world, who are actively working to discover options. And NASA engineers do not quit quickly on their science robotics; NASA’s still attempting to call Chance, keeping vigil as the dust storm on Mars gradually dissipates NASA states that Hubble will be sending out house in-depth pictures of the universes for several years to come. However NASA states that will not occur for several years to come. Simply recently, astronomers got their very first take a look at a moon orbiting an exoplanet, thanks to the 19 – year-old area telescope. And Hubble has another years or 2 left, if all works out, so there might be much more such discoveries ahead.

And if all works out, it will be taken part 2021 by the James Webb Area Telescope. Unlike Hubble, Webb wasn’t developed for shuttle bus upkeep, and it will orbit 1.5 million km (932, 000 miles) away at a point in area called the 2nd Lagrange point, up until now far from Earth that Earth’s gravity and the Sun’s really balance each other. That range would have put James Webb well beyond the reach of even an area shuttle bus objective in case of an issue– however James Webb’s style still consists of a docking ring, simply in case.

.