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Starlink's laser system is beaming 42 petabytes of data per day

pcmag.com

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Re: Starlink's laser system is beaming 42 petabytes of data per day

#341
post #334

Earlier quoted context omitted.

Is that still a thing with young people? I associate leaving the TV on in the background as an older generation thing.

I'm middle aged. This kind of background noise sounds terrible to me. Maybe I just grew up in a quiet place.

There are people who like to hear other humans blathering on all around them. Then there are sane people.

We're outnumbered.

Re: Starlink's laser system is beaming 42 petabytes of data per day

#342

Earlier quoted context omitted.

Yep, but that data originates from the providers network and never leave the providers network, so they probably don't count it towards your usage the same way. I don't think that breaks net neutrality either, which the FCC seems to be reimplementing Edit: see https://openconnect.netflix.com/en/

This obviously has no relevance for starlink which does not have local datacenters for cdn purposes. All that bandwidth is going through the satellites right before it reaches the user.

I wouldn't be surprised if starlink doesn't at least experiment with making the satellites a big bunch of CDN nodes.

Imagine they put 10TB of flash memory on the satellites and run virtual machines for the big CDN companies (cloudflare, Google, Netflix etc).

I reckon that 10TB is still big enough to service a good little chunk of internet traffic.

Re: Starlink's laser system is beaming 42 petabytes of data per day

#344

Is it possible one of these laser satellites miss and hit you in the eye? Would that blind a man?

No. The focus of a laser beam is not constant over these large distances. It is the same effect you get if you use a laser pointer over large distances. The spot becomes large quickly.

Re: Starlink's laser system is beaming 42 petabytes of data per day

#345
post #225

So that is "432 Mbit/s per laser, and 9000 lasers total". I don't know you guys but I find that statement much more relatable than "42 PB/day". Interestingly, they also say each laser "can sustain a 100Gbps connection per link" (although another part of the article even claims 200 Gbit/s). That means each laser is grossly underused on average, at 0.432% of its maximum capacity. Which makes sense since 100 Gbit/s is p…

Most customers aren't served by lasers, their data goes up to the satellite and down to the nearest gateway. Lasers serve customers out of range of a downlink gateway, and the traffic probably travels the minimum hops needed to get to one.

But with lasers, it makes sense to route your packets via space. For example traffic to a different continent would be faster (and cheaper) through space. Furthermore, I assume lasers have more capacity than gateways, so they could increase capacity of one satellite by bundling with more gateways.

Re: Starlink's laser system is beaming 42 petabytes of data per day

#346

I hate that PCMag ignores browser preferred language lists. It switches the language on my geo IP address which is a language I cannot read.

This is a serious annoyance for me all day long, across the internet. Have you found most sites respect your preferred languages list?

For Google, I found setting my browser to "Accept-Language: en,sv" when I live in Denmark was sufficient — just English and they seem to assume I can't configure the browser and want the local language.

PCMag serves me English, with "en-GB,en", though I don't know if they would support Danish anyway.

Re: Starlink's laser system is beaming 42 petabytes of data per day

#347

Earlier quoted context omitted.

I don’t think there are many birds, aeroplanes, nor hot air balloons in LEO? Are there?! (I doubt clouds too, but meteorological phenomena perhaps?)

I think the GP is saying that we already deal with these problems with downlinks, so accounting for similar problems on crosslinks is a known, and expected quantity.

Yes thank you, forgot to link everything together. We already have point-to-point optical and deal with these issues.

Re: Starlink's laser system is beaming 42 petabytes of data per day

#348

Earlier quoted context omitted.

watch, or leave running as background noise …

Any recommendations for shows that make good background noise? I wish they had more concerts.

Happy british baking children! I dont know what its called but it is on netflix and they are indeed happy, british and they bake. Or just put on Asianometry if you need to focus a bit more. I must have been through his back log a dozen times at this point. There is something about that mans voice that helps relax and focus like nothing else

Re: Starlink's laser system is beaming 42 petabytes of data per day

#349

Earlier quoted context omitted.

If someone makes a mistake and the satellite deorbits in the wrong place, am I likely to be impaled by a satellite screw or something travelling at terminal velocity?

Actually the person you replied to somewhat incorrectly. They're not targeted re-entries because the on-board propulsion of Starlink is too low to precisely control the re-entry location. However instead the satellites are designed to be intentionally "demisable" meaning that every portion of the satellite should vaporize/turn to char/dust during re-entry. Put another way, every kilogram of Starlink spacecraft has as…

You mean 4-5 kg of TNT. Starlink is not relativistic yet.

Re: Starlink's laser system is beaming 42 petabytes of data per day

#350

Earlier quoted context omitted.

Netflix uses 3-7GB an hour. The average person is spending 4-5hrs a day watching TV. I’d say most are above 100GB/month. But that’s me.

Who has 4-5 hrs a day to watch television? ..or am I completely out of touch?

Children, sadly.
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