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NASA to use consumer Android smartphones in new satellites

nasa.gov

101–107 of 107 posts

Re: NASA to use consumer Android smartphones in new satellites

#101
post #44

Earlier quoted context omitted.

Is radiation hardening really that important when you're still this side of the Van Allen belt? My understanding is that it's not, but IANARS.

Yes, it is. http://www.solarstorms.org/SEUavionics.pdf

Nice link, thanks. Very detailed.

Re: NASA to use consumer Android smartphones in new satellites

#102
post #45

...This raises questions about that other article that claimed everything had to be specially hardened to withstand radiation, no? I had always assumed that was the case and the article text was obvious, but if we can launch off the shelf Android devices into space with no problems then why are the other NASA projects utilizing such out of date hardware?

As soon as you cross the Van Allen belt you're exposed to the full blast of the solar wind, and standard electronics start failing. You can reach orbit without crossing this belt, so my understanding is that in low Earth orbit you're still shielded enough from the solar wind for it to not be a deal-breaker. Assuming that you're referring to the stories about the Mars rover, Mars isn't geologically active enough to ha…

Even in LEO (say, ~200 miles), the South Atlantic Anomaly can cause significant SEUs to standard hardware. But as you say, once you get higher than this, it gets really bad.

Re: NASA to use consumer Android smartphones in new satellites

#103
post #97

Earlier quoted context omitted.

Yes, and I am currently working on GAGA-2: http://blog.jgc.org/2012/01/gaga-2.html , http://blog.jgc.org/2012/01/gaga-2-distance-rtty-test.html , http://blog.jgc.org/2012/01/gaga-2-mounting-flight-computer.... The vague plan is that GAGA-2 will be all about lots of cameras pointing in all directions. GAGA-3 will be about precision landing probably using a guided parafoil. None of this is about orbit. Orbit == high ve…

Don't sell yourself and other high-altitude-ballooners short—40km is almost halfway to space and is an amazing achievement. Remember, everyone, space isn't that far away—if they put in a highway, you could drive there in about an hour. It's easy to think about space being very far away from us and untouchable, but it's actually quite close and just out of our reach. Keep reaching, fellow humans.

> Don't sell yourself and other high-altitude-ballooners short—40km is almost halfway to space and is an amazing achievement.

He's just being accurate. 'Ballooon reaches spaaaace!!1' articles upset H-A-B-ers more than most.

Re: NASA to use consumer Android smartphones in new satellites

#104
post #97

Earlier quoted context omitted.

Yes, and I am currently working on GAGA-2: http://blog.jgc.org/2012/01/gaga-2.html , http://blog.jgc.org/2012/01/gaga-2-distance-rtty-test.html , http://blog.jgc.org/2012/01/gaga-2-mounting-flight-computer.... The vague plan is that GAGA-2 will be all about lots of cameras pointing in all directions. GAGA-3 will be about precision landing probably using a guided parafoil. None of this is about orbit. Orbit == high ve…

Don't sell yourself and other high-altitude-ballooners short—40km is almost halfway to space and is an amazing achievement. Remember, everyone, space isn't that far away—if they put in a highway, you could drive there in about an hour. It's easy to think about space being very far away from us and untouchable, but it's actually quite close and just out of our reach. Keep reaching, fellow humans.

[deleted]

Re: NASA to use consumer Android smartphones in new satellites

#105
post #77

Earlier quoted context omitted.

With all respect, this isn't the kind of comment I've come to expect from HN lot on a serious article like this. It belongs to Verge/TechCrunch/Engadget/Gizmodo, or the the articles about the court ruling (those from yesterday).

Actually the comment had a purpose and was trying to raise awareness. The fact that it made you angry perhaps shows that it worked? Perhaps it might make you reconsider your opinions about your favorite company.

I'm all for raising awareness for what you think is right (even though Apple is my favorite company, while I disagree with if not most then many of what they're doing and how they're doing them), but this comment was like the typical Christian (or for my case, Muslim) missionary: "Hi, how are you doing today! Nice weather, isntit? Oh, and by the way, love Jesus(Allah) a bit more why don't you? He's a great fellow, Jesus is." - most of the time hurting their cause more than they do to help it.

It wasn't the OP's intent, I'm sure. All of us get angry some time and mix things up and comment on unrelated articles. I've posted more unrelated/stupid comments that I care to count.

And by the way, I'm not remotely angry. I have a lot of arguments about the subjects and have argued with many about it (not passionately, but all of us were reasonable and not typical fanboys). But I don't want to see them reiterated over all HN stories, that's all.

Re: NASA to use consumer Android smartphones in new satellites

#106
post #48

I worked on this project for a few months. We ran everything like a typical agile startup with weekly iterations and a lot of testing "MVPs". Really cool project. Also its all going to be opensourced! http://open.nasa.gov/plan/phonesat/

What was your radiation testing like? My understanding is that there's a lot of skepticism that this thing will run for very long. NASA uses hardened processors to make sure radiation from outside the atmosphere doesn't affect electronics and using an off-the-shelf SoC built on a tight whatever nm processes has never been done before for fears of early mortality. The only exception I can think of is laptops on the IS…

These are probably low earth orbit satellites, still protected by the geomagnetic field and their orbits wouldn't spend much time in the Van Allen belt.

To be safe, I imagine they gave the phone a tinfoil hat.

Re: NASA to use consumer Android smartphones in new satellites

#107

Earlier quoted context omitted.

I know this is sort of a joke, but the Nexus S shipped with Android 2.3 Gingerbread, and it's been updated to Android 4.1 Jellybean as of July 20th.

Is the update for the Nexus S OTA? I haven't gotten mine yet. In fact, I haven't gotten the 4.0 (ICS) OTA yet. I heard they released a version but pulled it... I have yet to see anything beyond 2.3 for my Nexus S.

Here you go http://forum.xda-developers.com/showthread.php?t=1784497
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