#Mars: James Webb all nominal. Bob Zimmerman BehindtheBlack.com
The John Batchelor Show
John Batchelor
4.5 • 2.8K Ratings
🗓️ 4 February 2023
⏱️ 17 minutes
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@Batchelorshow
#Mars: James Webb all nominal. Bob Zimmerman BehindtheBlack.com
https://behindtheblack.com/behind-the-black/points-of-information/webb-instrument-back-in-operation/
Transcript
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| 1:26.0 | I don't know if I was a long do or not, but one of the instruments called the... |
| 1:30.0 | A previous instrument had it out and they got it fixed. |
| 1:33.0 | So now a second instrument, the... |
| 1:35.0 | It's called an iris. It's a near infrared imager and spectrograph. |
| 1:39.0 | It went out of operations on January 15, and it was out for two weeks. |
| 1:44.0 | They only reported this about ten days after it went out. |
| 1:47.0 | And that's concerning when something's out that long. |
| 1:51.0 | Well, just a few days ago they finally revealed that yes, it's been fixed. |
| 1:56.0 | And the way they fixed it was pretty straightforward. |
| 1:59.0 | They did a power cycle. They rebooted the thing. |
| 2:01.0 | And the reason they had gone out actually was not any defect in the equipment. |
| 2:05.0 | This is actually a standard problem for all computers and electronic equipment in space. |
| 2:10.0 | A galactic cosmic ray hit the electronics. |
| 2:15.0 | And when it does that, it does something called a bit flip. |
| 2:19.0 | That's the name they have for this. It's so common. |
... |
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