NASA On Friday, it said it had completed additional diagnostic tests in an effort to identify Problem met the Hubble Space Telescope (HST) payload computer.
The telescope has two Payload computersOne of them appeared, and it is located in the Science Instrument, Command and Data Handling (SI C&DH) unit.
Computers consist of a central processing unit (CPM), a standard interface (STINT), a communication bus, and an active memory unit, although there are three additional backup units.
On June 23 and 24 tests, the backup computer turned on for the first time in space and scientists found that several tests for both parts of the useful computer gave the same error and that “commands to write or read from memory” did not work.
Now the agency has turned its attention to other devices, including the Command Unit/Scientific Data Coordinator (CU/SDF) in the SI C&DH unit.
According to the update, CU formats and sends commands and data to “specified destinations” containing scientific instruments, and SDF formats contains scientific data from scientific instruments to send back to Earth.
The power controller is also the likely culprit, and NASA said the team will continue to evaluate the hardware in the SI C&DH module over the next week.
“If the team determines that CU/SDF is the likely cause, they recommend switching to the standby CU/SDF and standby power control unit.”
This year isn’t the first time HST has had problems.
In March, the telescope “It goes into safe mode due to a bug in the airplane software.” Problem solved Science operations quickly resumed after a few days – despite the use of the Wide Field Camera 3 (WFC3) tool It turned out to be a little more difficult.
HST was deployed by the space shuttle Discovery in 1990 and has been observing the universe for more than 31 years.
telescope Monitoring capabilities “significant growth” Over the course of five missions, new and advanced scientific instruments have been added to serve the astronauts.
HST has made more than 1.4 million observations in its lifetime—contributing to some of the universe’s most important discoveries—and has looked at the universe’s past at locations more than 13.4 billion light-years away. Earth.