NASA & Space Weather

[aerohead]

Originally Posted by freebeard

Maybe I could've made the link more prominent.

NASA's website speaks of solar energetic particles (SEPs) capable of 'bit-flips' aboard satellites., where a 'zero' can become a 'one,' distorting communications.
SEPs cannot be predicted.
I'm not a drone expert, so I'll leave the explanations to them.

[freebeard]

duckduckgo.com/?q=claude+shannon+information+theoryi&ia=web

Claude Shannon was the expert you're looking for.

[aerohead]

Originally Posted by freebeard

duckduckgo.com/?q=claude+shannon+information+theoryi&ia=web

Claude Shannon was the expert you're looking for.

we were required to know that in 1976.

[freebeard]

45 years later we have Cyclic Redundancy Checks and MD5 Hashes.

[redpoint5]

Originally Posted by aerohead

NASA's website speaks of solar energetic particles (SEPs) capable of 'bit-flips' aboard satellites., where a 'zero' can become a 'one,' distorting communications.
SEPs cannot be predicted.
I'm not a drone expert, so I'll leave the explanations to them.

A podcast suggested bit flip was responsible for unintended acceleration issues. Apparently there was no redundancy to protect against the unlikely but potentially catastrophic occurances.

[aerohead]

Originally Posted by freebeard

45 years later we have Cyclic Redundancy Checks and MD5 Hashes.

Not something, either of which strikes me as actionable information.

[aerohead]

Originally Posted by redpoint5

A podcast suggested bit flip was responsible for unintended acceleration issues. Apparently there was no redundancy to protect against the unlikely but potentially catastrophic occurances.

It's never come to my attention that, 'unintended acceleration' had anything to do with real-time data down-feeds from space satellites exposed to space weather.
In the absence of a corrupting space weather environment, what would be the causal factor responsible for a bit-flip ?

[freebeard]

Not something, either of which strikes me as actionable information.

What's your point. I never expected you to inform yourself.

[aerohead]

Originally Posted by freebeard

What's your point. I never expected you to inform yourself.

Like the judge said, 'You already have all the information you need.'
There are things to actually do.
There is no time in my life left to explore such obtuse information, nor see any possible potential to act on either of those two items you shared.
Some things aren't worth my knowing.

[redpoint5]

Originally Posted by aerohead

It's never come to my attention that, 'unintended acceleration' had anything to do with real-time data down-feeds from space satellites exposed to space weather.
In the absence of a corrupting space weather environment, what would be the causal factor responsible for a bit-flip ?

That's the implication, that we're never in the absence of space weather, so we're always susceptible to bit-flip corruption, and critical systems must be hardened against it.

I believe the highest regarded theory that explains Toyota's unintended acceleration problem is still bit-flip. That theory was confirmed in laboratories to suggest it's at least possible, and even probable in a few among millions of vehicles.

https://www.wired.com/2010/03/toyota-cosmic-rays/