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Re:Astranis emerges from stealth with new satellite tech for... by consciouskernel on Thursday March 01, 2018 @06:07PM (#16497248)
There's a reason that no other company tries to use geosynchronous orbit.

Stationary orbit is at a distance of 35800 km above sea level, which implies a one way latency of 110 ms based off the speed of light. Since any request from a user requires a total of 2 round way trips (one for request, one for response), the minimum latency for a request is 440 ms.

Avg latency with fiber is something like 30-60 ms, so we can assume an average request with Astranis will have ~500 latency.

Most modern webpages will not be able to support such latency. Astranis will need to essentially cache webpages on demand and deliver them to the end user as a fully rendered page, which will introduce security headaches.

I don't see why Astranis chose this vs a lower orbit.

Re:Astranis emerges from stealth with new satellite tech for... by wmf on Thursday March 01, 2018 @06:18PM (#16497322)
No other company... like HughesNet, ViaSat, Inmarsat, Intelsat, etc. Maybe you were led astray by this terrible TechCrunch article.
Re:Astranis emerges from stealth with new satellite tech for... by jmagoon on Thursday March 01, 2018 @06:20PM (#16497331)
Seriously. Ever used internet on an airplane? You're using one of those companies geostationary satellites. The article is ridiculous.
Re:Astranis emerges from stealth with new satellite tech for... by blackguardx on Thursday March 01, 2018 @07:07PM (#16497610)
Not necessarily. GoGo Inflight uses ground links for domestic US flights.
Re:Astranis emerges from stealth with new satellite tech for... by bmcooley on Thursday March 01, 2018 @07:19PM (#16497673)
And they're being dropped in favor of geosynchronous providers.
Re:Astranis emerges from stealth with new satellite tech for... by blackguardx on Thursday March 01, 2018 @07:59PM (#16497944)
I don't know much about their market. A friend of mine works there though, and he said they are growing.
Re:Astranis emerges from stealth with new satellite tech for... by shaklee3 on Thursday March 01, 2018 @10:04PM (#16498619)
They're not. They lost American, and they're losing market share quickly.
Re:Astranis emerges from stealth with new satellite tech for... by consciouskernel on Friday March 02, 2018 @02:41AM (#16499816)
You're right. I don't really know much about the field at all. I was basing my opinions off the article. I'm still surprised they're touting geostationary satellites as superior though. The speed of light is constant. SpaceX's plan while very expensive, at least theoretically could provide a complete internet experience. Same thing with Google's balloons. Astranis at best can only serve static sites.
Re:Astranis emerges from stealth with new satellite tech for... by walrus01 on Thursday March 01, 2018 @10:08PM (#16498651)
"no other company tries to use geostationary" - uhm, probably 85% of the satellite industry by gross revenue is based on geostationary platforms. Look at Intelsat, SES, Eutelsat, Asiasat, the various north american Ku, BSS and Ka band TV satellites, etc.
Re:Astranis emerges from stealth with new satellite tech for... by colanderman on Thursday March 01, 2018 @08:38PM (#16498166)
> any request from a user requires a total of 2 [sequential] round way trips (one for request, one for response)

Please elaborate? This makes no sense to me. Certainly, this is not the case for terrestrial communication (request/response latency is only 2× the one-way latency).

Re:Astranis emerges from stealth with new satellite tech for... by paragraft on Thursday March 01, 2018 @09:18PM (#16498418)
By "one way" the OP was referring to the ground-to-satellite trip taking 110ms. So by "round way trip" they meant a packet going from client to satellite to ground station (2 x 110ms). Thus 440ms.
Re:Astranis emerges from stealth with new satellite tech for... by brianshaler on Thursday March 01, 2018 @10:15PM (#16498692)
How long until we can co-locate application services in geosynchronous orbit to cut that latency in half?
Re:Astranis emerges from stealth with new satellite tech for... by colanderman on Thursday March 01, 2018 @09:29PM (#16498478)
OH. Of course, that makes sense. Thanks!
Re:Astranis emerges from stealth with new satellite tech for... by robkop on Thursday March 01, 2018 @09:00PM (#16498319)
Possibly they were thinking of first a DNS query then the actual query? That would result in two round trips.