cross-posted from: https://scribe.disroot.org/post/12048737
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The cooperation agreement places an emphasis on defense technology and energy security. Under the new terms, Ukraine will expand its access to Finnish satellite capabilities through direct collaboration with telecommunications technology giant Nokia and satellite provider ICEYE.
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Earlier this month, ICEYE and Nokia announced a partnership to develop secure, sovereign and high-performance broadband low Earth orbit (LEO) satellite communications systems for governments, supporting missions from defense and border security to emergency services and disaster response. Built on trusted European technology, the jointly developed satellite communications systems will give nations ownership and control of satellites, ground segment and terminals.
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Not the whole world, but every satellite that wants to serve downtown Paris, has to serve the whole world on that orbit. They need a satellite perpetually going over downtown Paris which creates global coverage for that orbit. Europe is big. Thats going to be a lot of rings. (Edit Paris was just a figurative example, it would need to be in the cell range, not directly over)
Depending on the orbits maybe that never reaches Africa, or never reaches Russia. Im not really sure which orbital planes they’d use or are even possible. That comes down to where they launch from.
To attack thousands of km into Russia though to be useful like starshield is to Ukraine in a war situation, they would probably want that covered. At leaat partially.
Edit: clarity, but also this global orbit requirement is part of what helps fund the network. Now they can also offer service to other countries that line up on their orbits. Starlink wouldn’t be profitable if it just served the USA. Trying to perfectly cover the USA got them extensive coverage around the globe though. If this is military use only, it wouldn’t need to be as dense as starlink though as itd have less usage so less bandwidth needs.
Edit: i was just looking more into this, but orbits arent over the same spot repeatedly. A dish that goes over Paris on orbit 1 might not reach Paris again until orbit 6. That means you need even more rings, which brings true global coverage closer.
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We’ve had geostationary internet satellites for a reaaaaaaaaaally long time now. You can’t just hand-wave away why LEO satellites are so preferred.
As you said geostationary have substantial lag. If you want to send a message to someone it can work, but to be precicesly controlling things its not realistic. Its upwards of 600-700ms delay. People who have to use it don’t like it, that’s why Starlink won people over. They want to build a LEO network though.
They could definitely go for less satellites at a medium height and find a balance on usable ping, and that could save some launches. (edit: bigger but fewer satellites at medium orbits could mean more fuels as well to stay up longer on their own, but they would need more fuel as well to deorbit at the end of their lifespan. I don’t know how that would balance out. But I’m sure you could get more than 5 years like the LEO ones are planned for, as long as the hardware is designed to last longer too)
The thing with these LEO satellites is if something goes wrong, they will come down in ~5 years. If you go much higher, it could be decades or hundreds of years. Everyone who screams about kessler syndrome because of Starlink is wrong, but the higher you go with a constellation, the higher the risk becomes.
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You are accusing others of being confidently incorrect? That’s rich.
LOL dude.
LEO has no kessler risk because they come down too quick.
As you go into higher orbits, you know like the MEDIUM orbits I was talking about so they stay longer with still low pings, the chances of something happening increase and there will still be a lot.
Geostationary is not a medium orbit, and yes the risk isn’t as high there, but that is not what they want to build.
edit: To be clear, were talking about Kessler here, and the ‘chances of something happening’ is that something goes wrong and a true kessler syndrome happens. 0% chance in current LEO like starlink. As you go higher, the % goes up, at least in the low latency area.
Edit: Like China blew up their own satellite in the 800km range, and that debris is going to remain in orbit for hundreds of years now. If we put a constellation in an orbit around 1500km, so we can triple Starlinks latency of 20-50 to 60-150, it’d stay up there for millennia if something happened. That’s the risk of a true kessler syndrome. Nobody cares if we fuck things up for a few years down so low with these existing constellations. The world would shrug its shoulders in annoyance.
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