This can be the classic response from IT departments around the world, but shutting down and re-running really works – even for the Hubble Space Telescope.
NASA has confirmed that the recovery of the main camera of the aging telescope seems to have removed a problem that left it offline.
Hubble Space Telescope's Broad Field Camera Tool, cut off operations on Tuesday, January 8th as a result.
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HOW DOES HUBBLE HARBORS WORK? The wheel inside the gyroscope rotates at a constant speed of 19,200 rpm. This wheel is mounted in a sealed cylinder called a float that is hung in a dense liquid. Electricity is transferred to the engine by thin wires, approximately the size of human hair that is dipped into the fluid.
The gyro electronics detects very small movements of the axis of the wheel and reports this information to Hubble's central computer.
These gyroscopes have two modes – high and low.
High mode is a rough mode used to measure high speeds when the spacecraft crosses the sky from one end to the other.
Low mode is a precision mode that is used to measure finer spins when a spacecraft is locked on the target and must remain immobile.
Shortly after midnight EST on January 8, software installed on camera 3 with a wide field detects that some instrument voltage levels are outside the preset range, NASA said. precaution.
Upon further investigation, the voltage levels appeared to be within normal range, and all other telemetry in these circuits contained erroneous values indicating that this was a problem with telemetry, not a power supply problem.
After resetting the telemetry circuits and the related boards, additional engineering data was collected and the instrument was returned to service.
Assuming that all tests work as planned, it is expected that the wide-angle camera 3 will begin to collect scientific images again by the end of the week.
The three other Hubble scientific instruments are still working well, and the celestial observations continue.
This third incarnation of the broad field camera was installed by space astronauts in 2009
if necessary, according to NASA.
"Hubble will continue to conduct scientific observations with its other three active instruments, while the camera-wide anomaly field 3 is being explored," he writes. installed during service mission 4 in 2009, is equipped with a spare electronics if required to recover the instrument.
The camera has captured stunning images of stars, galaxies that stretch far back in time, and helped in deep-sky studies.
The Broad-Field Camera 3 was installed during Service 4 in 2009. The Hubble Space Telescope at the end of the remote control system of the manipulator controlled by the Atlantis crew's cabin as astronaut John Grantsfeld signaled of its crew just a few meters from space. Feustel and Grunsfeld continued to work in the giant observatory locked in the cargo compartment of the shuttle. Space Shuttle mission Atlantis is to repair the Hubble Space Telescope to extend its life
It has also explored objects in our own solar system, detecting some of the small moons around Pluto and the 14th Moon around Neptune.
He takes pictures of both visible and ultraviolet light as well as near the infrared beam.
In orbit 350 miles (560 kilometers) above the Earth, Hubble launched in 1990 and was visited five times by astronauts from space shuttles for repair and modernization. 19659002] This is the first time the camera has acted like that, said Sheryl Gundy, a spokeswoman for the Space Telescope Science Institute in Baltimore, which is involved in scientific telescope operations.
Last fall, the Hubble stopped working completely for three weeks because of a targeting problem.
The return to science leads comes after a successful restoration of a backup gyroscope or a gyroscope that replaced an unsuccessful gyroscope three weeks ago.
The telescope included a backup gyroscope after entering safe mode due to an unsuccessful gyroscope on Friday, October 5th.
560 kilometers) above the Earth, Hubble launched in 1990 and was visited five times by astronauts of space shuttles for repair and modernization.
However, the gyroscope began to spin at an alarming speed so NASA did not manage to switch the scope back on.
To fix it, NASA has gone through tried and tested IT support technology – shutdown and reboot. The Hubble operations team shut down the gyroscope for a second and then dropped it back before the wheel came back down. They then commanded a series of maneuvers or reversals of spacecraft in opposite directions to try to clear any blockages that may have led to the float being out of center and producing extremely high values.
During each maneuver, the gyroscope was switched from high to low mode to remove any blocking that may have accumulated around the float.
Following the maneuvers on Oct. 18, the team noticed a significant reduction in high levels
The Hubble Space Telescope launched on April 24, 1990, via the space shuttle Discovery at the Kennedy Space Center in Florida. 19659002] He was named after the famous astronomer Edwin Hubble, who was born in Missouri in 1889. He is best known for discovering that the universe is expanding and the speed at which it evolves – the Hubble Constant .
Hubble has made more than 1.3 million observations since the beginning of its mission in 1990 and has helped to publish more than 15,000 scientific papers.
He travels around the Earth at a speed of about 17,000 mph in low orb on the Earth at about 340 miles altitude, has an accuracy of 0.007 arc second, which is like being able to light a laser beam focused on Franklin D. Roosevelt's head about 200 miles away
Hubble's primary mirror is 2 , 4 meters (7 feet, 10.5 inches) and a total of 13.3 meters (43.5 feet) long – the length of a large school bus.
"The rotation speeds produced by the reserve gyro have decreased and are now within the expected range"
Additional tests will be carried out to ensure that Hubble can return to the scientific operations with this gyroscope . Astronomical observatories such as Hubble and Chandra were launched in orbit a few years ago, and have since provided stunning images and valuable data.
These amazing machines, which are invaluable to the advancement of modern science, worsen with age. and NASA has no plan to replace the disease technology.
They are designed to help gather distant galaxies, look into black holes and find new planets, but astronomers fear that their eyes in the sky may be cloudy. "The unwillingness to invest in significant science has begun to bother us," said astrophysicist Matt Moun, president of the Association of Astronomy Research Universities, who runs the Hubble Hubble on behalf of NASA. & # 39; We are facing a rather difficult perspective as a community. Some fields simply will not have a telescope. And science can not be done in any other way.
Funding for the heirs of these tent telescopes has not yet been secured, and Paul Herz, NASA's Astrophysics Director, said it was a "choice for the nation"
"What missions we will do will be influenced by the priorities of the community, and the funding opportunities made by the political system, "he added. The Triangle Galaxy, also known as Messiah 33. The image, which is the most detailed of the 40 billion-star star galaxy, is a component of about 54 different directions with Hubble's advanced camera for research. The Triangle Galaxy mosaic shows the central region of the galaxy and its internal spiral arms. Triangle Galaxy, also known as Mesia 33. The image, the most detailed of the 40 billion star galaxy, is made up of about 54 different directions with Hubble's Advanced Camera for Studies. The Triangle Galaxy mosaic shows the central region of the galaxy and its internal spiral arms. ” class=”blkBorder img-share” />
The Triangle Galaxy, also known as Messiah 33. The image, the most detailed of the 40 billion star galaxy, is a component of about 54 different directions with Hubble's Advanced Camera for Studies. Triangle Galaxy mosaic shows the central region of the galaxy and its internal spiral arms
The space agency says that Chandra and Hubble are "asleep" within a week of each other. He continues to work for the resumption of the Hubble Space Telescope's scientific operations after the spacecraft enters safe mode due to a failed gyroscope.