Partial return to normal for the Hubble telescope

The NASA brings us some good news On the part of Hubble, even if the problems are far from resolved. First, on November 7, aadvanced scanning camera He managed to resume his scientific observations. This camera was chosen as the first tool get well Because this is the one that faces the least complications if a missing sync message occurs.

the others Tools You are currently in safe mode. NASA continues to investigate the root cause of Problems Synchronize and take action to get devices back into action. Meanwhile, the space agency hasn’t found anything Problem Additional and the rest telescope It works as expected. On November 16, NASA provided more details about the next steps for the devices Hubble Return to normal operation.

Over the past week, the Hubble team identified the changes It can be done in the short term on how gadgets monitor and respond to missed sync messages, as well as howthe computer payload screens Tools. This will allow scientific operations to continue even if several missed messages occur. The team also continued to analyze software Flight tools to verify that all possible solutions will be without risk for tools.

This week, the team will begin to determine the order of recovery of the remaining tools, including the timeline for adjusting the tool’s parameters before procedures are validated and developed. They will also test these changes to ensure they are working as expected while still isolating the root cause of .flaw.

According to the Hubble team, it will take several weeks to complete these activities for the first device. The team still has to decide which tool will receive these changes first. In the meantime, they will start taking the necessary steps to recover The 3 . wide field camera With no new changes next week, as happened withadvanced scanning camera, as a medium, low-risk step towards resuming normal scientific operations.

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Hubble is back in safe mode

Article by Adrien Coffinet published on 06/11/2021

After a power outage last June (see below), which thankfully would have been the case It was resolved in JulyAnd Hubble Once again he has some concerns. Indeed, space telescopes that have more than 31 years of good and sincere service and reckon with him, You recently entered safe modeComment – hopefully only temporarily – scientific operations. The tools are fine and will remain in safe mode while NASA continues its investigations.

Scientific tools for Hubble issued symbols Error Oct 23 1:46AM EDT (OCT; Oct 22 7:46PM EDT), indicating that a specific sync message was missing. This message provides timing information that devices use to properly respond to data requests and commands. The mission team returned the instruments, and resumed scientific operations the next morning.

On October 25 at 2:38 AM EDT (October 24 at 8:38 PM EDT), the tools again issued error codes indicating that multiple sync messages were missing. As a result, they independently entered safe mode states as scheduled.

Mission team members evaluate spacecraft data and system diagrams to better understand the timing problem and how to solve it. They also develop and test procedures for collecting additional data from telescope. These activities should continue for at least a week.

The rest of the telescope is operating as expected.

Hubble has stopped working

Subject Celine DeLosarch Published on 06/19/2021

The space telescope was launched in 1990 Hubble damage accumulates. NASA reported on June 16 The complete shutdown of the onboard computer, Sunday, June 13th, shortly after 4pm. The on-board computer, which controls all of the telescope’s instruments, went into inactive mode, apparently due to Memory Card defective. control center staff Goddard Space Flight Center NASA tried to restart the computer on Monday, but soon encountered the same problem.

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This computer is not new: it was built in the 80s, the memory card was replaced during a mission maintenance In 2009. This failure followed A series of other problems Happened on various instruments in recent years, and illustrates the aging state of this telescope that can no longer be refurbished. Unfortunately, the James Webb Telescope that was scheduled to replace it was launched in 2018, Never stop being late And nearly ten years behind schedule. Hopefully, it will be reliable because it is located 1.5 million km from Earth (versus 600 km from Hubble), and will not be accessible for maintenance.

Meanwhile, team Goddard Space Flight Center It tries to restart the computer in safe mode by switching to a backup memory card. If these efforts succeed, Hubble It will undergo a day of tests before restarting its scientific instruments. Otherwise, the notesUniverse It will create a huge void.

Hubble: returns to normal after gyroscope failure

Editorial article published on 10/24/2018

at NASA advertisement The Hubble telescope is back up and running again on Monday, October 22, 2018, and will resume its normal science activities soon. Everyone’s favorite space telescope has been closed since October 5 after a failure gyroscopeA necessary tool to guide it. NASA restarted and repaired the gyroscope between October 16-19. It seems that everything is back to normal, but the engineers will still undergo a series of tests before giving shooting Green when notes resume.

Hubble stopped after one of its gyroscopes failed

Posted on 09/10/2018

The Hubble Spatial Telescope It is in a standstill due to a gyroscope failure that occurred last Friday. These tools allow him to orient himself well and are essential to making accurate notes. After a power outage, NASA put Hubble in safe mode (“Safe Mode”) and suspended all observations during the investigation.

Hubble Fully aware of gyroscope issues. In 2009, astronauts Replaced six gyroscopes during a maintenance mission. Half are now unusable, two are working properly and the other, which Hubble has just lost, shows signs of the end of life for a year. So the failure was no surprise. The space telescope usually uses three Gyros, but can continue its activities with one or two. The NASA He points out that this will have a relatively small effect on the quality of the observations, but will give them limited celestial coverage.

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