No spacecraft can hope match terrestiral latency, the speed of light is not your friend. There was an identical push for space ISPs in the 90's. Iridium was the only sucessful leo space "ISP". Elon has been sucessful with what he says he will do but all these space bases "ISPs" are vaporware until they deliver. Look at the joke of oneweb with their botched softbank merger with intelsat, consilidating billions of dollars of existing debt to fund another few billion to develop a new constillation does not bode well.
Echostar is doing a good job with their proven GEO ISP constillation. With several billion in the bank they are the most promising to be sucessful, keep an eye on their HTS development over the next couple years. The problem with GEO ISPs is they have 1-2s latency :(
Latency is not a problem for low orbit. You're adding a few hundred miles to the trip, which adds single-digit milliseconds of latency. Cost is a huge problem (that's why Iridium went bankrupt) but SpaceX will be able to launch their constellation far more cheaply than it cost Iridium in the 90s.
I agree that they're vaporware until they deliver, but latency isn't going to be the killer.
SpaceX carried an Iridium cluster 3 weeks ago. OneWeb, as you noted; also exists. Google has designs in the space and you can see a company like Planet (or even Planet) eyeing the economics of this. My point was that there are companies putting pressure on terrestrial ISPs.
As to latency; their tech woul;d be ~750[1] miles from the ground. They are targeting 1Gbps capabilities[2] vs a global avg of terrestrial companies around 20gbps. I don't know how viable that number is; but if it is physically possible then hitting 1/100th of that would still put immense pressure on ISPS as the floor for your weakest offering is 10gbps to be competitive. 2019 is scheduled date; so presumably 2020.
pocketstar|8 years ago
Echostar is doing a good job with their proven GEO ISP constillation. With several billion in the bank they are the most promising to be sucessful, keep an eye on their HTS development over the next couple years. The problem with GEO ISPs is they have 1-2s latency :(
mikeash|8 years ago
I agree that they're vaporware until they deliver, but latency isn't going to be the killer.
vonklaus|8 years ago
As to latency; their tech woul;d be ~750[1] miles from the ground. They are targeting 1Gbps capabilities[2] vs a global avg of terrestrial companies around 20gbps. I don't know how viable that number is; but if it is physically possible then hitting 1/100th of that would still put immense pressure on ISPS as the floor for your weakest offering is 10gbps to be competitive. 2019 is scheduled date; so presumably 2020.
[1]https://www.engadget.com/2015/01/17/elon-musk-spacex-interne... [2]http://www.spaceflightinsider.com/organizations/space-explor...