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[basserdan]

NASA's Chandra telescope follows Hubble into a shutdown

The 19-year-old observatory might also be in need of a vacation.

By Mariella Moon
10.13.18 in Space


NASA

NASA sure hasn't been having a great time with its telescopes. The Chandra X-ray Observatory has gone into safe mode and halted all its science operations a few days after Hubble shut down due a gyroscope failure. According to the agency, Chandra's transition into safe mode was possibly triggered by an issue that also has something to do with its gyroscope, the component in charge of pointing and stabilizing the telescope.

Chandra went into safe mode on October 10th at around 10:55 AM ET. It started using its backup hardware after the shutdown and shifted its solar panels to get maximum sunlight. Thankfully, the agency concluded after analyzing data from the transition that its scientific instruments are safe and sound. The Chandra observatory uses X-ray technology to keep an eye on black holes and supernova remnants, among other things.

Like the Hubble, Chandra is also getting long in the tooth: it was only supposed to last for five years, but it's been operating for the past 19.

Investigation is still underway, but Chandra astronomer Jonathan McDowell said it's just a coincidence that the two high-profile observatories went down almost at the same time. NASA seems confident that the telescope can go back to normal operations, though, and expects it to be able to "continue carrying out forefront science for many years to come."

Jonathan McDowell
@planet4589
· Oct 12, 2018
So, as per the above tweets we went into safemode on Wednesday. I'm not free to give details at this point, but it's sitting happy on the B side in safemode, we just want to understand why it had a little twinge of unhappiness before getting back to work.

Jonathan McDowell
@planet4589
My leading theory is that Chandra decided that if Hubble could have a little vacation, it wanted one too.
10:27 AM - Oct 12, 2018
236 likes
50 retweets

https://www.engadget.com/2018/10/13/nasa-chandra-x-ray-observatory-safe-mode/?yptr=yahoo