Hubble Space Telescope Delivers First Images Since Closing

NASA Agency Hubble Space Telescope (HST) It has provided its first images since the telescope’s computer payload abruptly stopped on June 13.

The images show a galaxy with what the agency calls Helical arms extended.This is the first high-resolution look at a pair of colliding galaxies, he said in a statement.

NASA completes tests to identify problem using Hubble Space Telescope computer

The images were captured by a program led by Julian Dalcanton at the University of Washington.

Other possible targets The program included globular star clusters and auroras on Jupiter.

Flag Notes It restarted on July 17, after the telescope’s main computer failed to receive a signal from the payload computer, and then put the Hubble Science Instruments into safe mode.

NASA mission analysts, working out of Greenbelt, Md., The Goddard Space Flight Center mission control center as well as remotely, and engineers worked together to analyze the problem and determine its cause.

HST has been orbiting approximately 340 miles above it فوق Earth for over 30 years. The telescope was built in the 1980s and NASA has said the Hubble alumni are back to help with recovery efforts.

The team looked at documents over 40 years old, hoping to quickly diagnose the problem.

Nzinga Tull, head of Hubble Systems Anomaly Response at NASA’s Goddard Space Flight Center in Greenbelt, Md., Works in the control room July 15 to bring Hubble back to full science operations.
(Credit: NASA GSFC / Rebecca Roth)

In examining the capabilities of the degraded memory module, NASA turned to backup modules.

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Next, the team turned on the Hubble Telescope’s standby payload computer for the first time in space. Both tasks failed to resolve the issue.

Then looking at the other hardware – like the data science command module / coordinator and the power control unit – and switching to backups took 15 hours of driving the spacecraft.

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The main computer was shut down and a “safe mode standby computer” temporarily took over the spacecraft, several enclosures had to be run for the first time, and the required hardware interfaces were swapped,

Over 50 people worked on the switch to backup devices, testing the procedures on an HD Simulation and a formal review of the proposed plan.

The team also analyzed data from previous tests and identified the ECU as a possible source of their concerns.

July 15, 2021 – NASA begins to switch to spacecraft standby hardware Today, NASA begins to switch to spacecraft standby hardware on Hubble in response to a persistent issue with its payload computer.
(Crédit : NASA/Goddard/Rebecca Roth)

Switching to the standby side of the Science Instrument module, Command and Data Processing module, and Backup Power Control module, NASA succeeded on July 15 at 11:30 p.m. ET.

“I am delighted to see that Hubble has revisited the universe, once again capturing the kind of images that have intrigued and inspired us for decades,” NASA Administrator Bill Nelson He said. “This is a time to celebrate the success of a team that is truly dedicated to the mission. Through their efforts, Hubble will continue its 32nd year of discovery, and we will continue to learn from the observatory’s transformative vision. ”

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HST has taken over 1.5 million observations of the universe during its lifetime, contributing to some of the most important discoveries in the universe.

Most of the observations lost during downtime in scientific operations will be rescheduled.