Re:NASA officials sound alarm over future of the Deep Space ...
by anigbrowl on Thursday August 31, 2023 @01:28PM
(#37340728)
I don't buy that when you can buy 32gb of storage on a card the size of your pinkie nail for under $10.
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Re:NASA officials sound alarm over future of the Deep Space ...
by Arrath on Thursday August 31, 2023 @02:00PM
(#37341237)
Sure but what does it cost for 32gb of space rated, radiation hardened memory?
Maybe even in triplicate for a consensus system!
Re:NASA officials sound alarm over future of the Deep Space ...
by dr_orpheus on Thursday August 31, 2023 @02:41PM
(#37341878)
I've got a quote in front of me right now for a ~1 TB data recorder for just shy of $4 million.
Also keep in mind this isn't even for the highest class parts, this is more in line for something like a NASA Explorers program level [0]. Something you would get for a JWST or an Artemis level of program would be even more $$$
Re:NASA officials sound alarm over future of the Deep Space ...
by manwe150 on Thursday August 31, 2023 @02:02PM
(#37341286)
That card would be dead (non responsive or short circuited) by the time it made it to Mars. Rough rule of thumb I have heard is add 2 zeros to the cost of every IC for space grade stuff.
Re:NASA officials sound alarm over future of the Deep Space ...
by rtkwe on Thursday August 31, 2023 @02:24PM
(#37341637)
You're forgetting just how inhospitable space is to consumer grade electronics. If you watch non-live videos from the space station or check out some of their pictures you'll see loads of dead or stuck pixels on the cameras. That's from radiation damaging the components and those are essentially still completely protected by Earth's magnetic field. As you venture beyond LEO the situation gets much worse and an unlucky hit could kill your $10 storage ending your $74 million dollar Moon mission.
Re:NASA officials sound alarm over future of the Deep Space ...
by anigbrowl on Thursday August 31, 2023 @07:07PM
(#37344742)
I'm not, I assume anything like that will need to be wrapped in sheets of lead. But modern storage densities are so high there's no need to run out.
Re:NASA officials sound alarm over future of the Deep Space ...
by lightspot21 on Thursday August 31, 2023 @07:46PM
(#37345012)
Lead wrapping thick enough to sufficiently protect against radiation damage is very, very heavy. Beyond LEO, excessive weight is still ridiculously expensive.
Re:NASA officials sound alarm over future of the Deep Space ...
by anigbrowl on Friday September 01, 2023 @11:51AM
(#37352360)
My point being that it's the hardening that's expensive, not the storage itself. I don't think you need that much lead to shield increasingly tiny storage media.
Re:NASA officials sound alarm over future of the Deep Space ...
by havnagiggle on Thursday August 31, 2023 @08:42PM
(#37345399)
Chandrayaan-3's life expectancy is 2 weeks. You could probably say the same thing about every aspect.
Re:NASA officials sound alarm over future of the Deep Space ...
by patmorgan23 on Friday September 01, 2023 @05:52PM
(#37356537)
And how reliable will that storage be when it is bombarded with all of the radiation out atmosphere is currently shielding it from