Elon Musk tweets using SpaceX’s Starlink satellite internet

Re:Elon Musk tweets using SpaceX’s Starlink satellite internet by windsurfer on Tuesday October 22, 2019 @11:58AM (#21325186)

Distance is still a huge problem. The Starlink signal still needs to travel up to the satellites 500 KM up, and then another 500 KM back down. That should be around 2 ms (thanks user jobseeker990, corrected from previous 15ms) of added latency, so anything that is already below 4 ms of latency probably wouldn't be improved.

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Re:Elon Musk tweets using SpaceX’s Starlink satellite internet by jobseeker990 on Tuesday October 22, 2019 @12:16PM (#21325423)

I think your math is way off. I'm getting less than 2 ms to go 500 km.

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Re:Elon Musk tweets using SpaceX’s Starlink satellite internet by windsurfer on Tuesday October 22, 2019 @12:50PM (#21325852)

You're right, thanks. I was off by an order of magnitude. I've updated my comment

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Re:Elon Musk tweets using SpaceX’s Starlink satellite internet by alextingle on Tuesday October 22, 2019 @12:13PM (#21325379)

Light travels 1000km in under 4ms. What else are you adding to that time?

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Re:Elon Musk tweets using SpaceX’s Starlink satellite internet by windsurfer on Tuesday October 22, 2019 @12:51PM (#21325858)

I have updated my comment above. I was off by about an order of magnitude.

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Re:Elon Musk tweets using SpaceX’s Starlink satellite internet by uoaei on Tuesday October 22, 2019 @12:30PM (#21325592)

That's true in vacuum. Light traveling through a medium has to reflect off of or absorb/re-emit from everything it bumps into, so it goes slower.

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Re:Elon Musk tweets using SpaceX’s Starlink satellite internet by optimiz3 on Tuesday October 22, 2019 @12:04PM (#21325263)

Would be fine with equivalency - that's a democratizing force. Will also spur more innovation in this area on behalf of HFT firms.

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