6 ms·
Not sure where you got the 25ms number from. Viasat-2 is in geostationary orbit at 35000km. The roundtrip speed of light delay alone is 240ms.
by sephamorr 9y ago
Not sure where you got the 25ms number from. Viasat-2 is in geostationary orbit at 35000km. The roundtrip speed of light delay alone is 240ms.
- dkersten 9y agoI’ll try to find the source. I guess it must have been mistaken given what you said. EDIT: Haven’t found the source. I did find that the existing ViaSat-1 latency (on Exede, and actual ping times not satellite->ground latency) is 600 to 700ms, so that’s roughly in line with what you said. Exede do a bunch of latency compensation where they can so people often report lower latency, but for eg online games that obviously won’t work. I also know that what I read before was specific to airplane in-flight internet, although I doubt commercial flight altitude make any difference to latency, so that’s likely an irrelevant point.
- xattt 9y agoSpaceX's proposed satellites will be LEO, allowing for low latency.