this post was submitted on 23 Mar 2025
425 points (99.5% liked)
Europe
4686 readers
1302 users here now
News and information from Europe ๐ช๐บ
(Current banner: La Mancha, Spain. Feel free to post submissions for banner images.)
Rules (2024-08-30)
- This is an English-language community. Comments should be in English. Posts can link to non-English news sources when providing a full-text translation in the post description. Automated translations are fine, as long as they don't overly distort the content.
- No links to misinformation or commercial advertising. When you post outdated/historic articles, add the year of publication to the post title. Infographics must include a source and a year of creation; if possible, also provide a link to the source.
- Be kind to each other, and argue in good faith. Don't post direct insults nor disrespectful and condescending comments. Don't troll nor incite hatred. Don't look for novel argumentation strategies at Wikipedia's List of fallacies.
- No bigotry, sexism, racism, antisemitism, dehumanization of minorities, or glorification of National Socialism.
- Be the signal, not the noise: Strive to post insightful comments. Add "/s" when you're being sarcastic (and don't use it to break rule no. 3).
- If you link to paywalled information, please provide also a link to a freely available archived version. Alternatively, try to find a different source.
- Light-hearted content, memes, and posts about your European everyday belong in [email protected]. (They're cool, you should subscribe there too!)
- Don't evade bans. If we notice ban evasion, that will result in a permanent ban for all the accounts we can associate with you.
- No posts linking to speculative reporting about ongoing events with unclear backgrounds. Please wait at least 12 hours. (E.g., do not post breathless reporting on an ongoing terror attack.)
(This list may get expanded when necessary.)
We will use some leeway to decide whether to remove a comment.
If need be, there are also bans: 3 days for lighter offenses, 14 days for bigger offenses, and permanent bans for people who don't show any willingness to participate productively. If we think the ban reason is obvious, we may not specifically write to you.
If you want to protest a removal or ban, feel free to write privately to the mods: @[email protected], @[email protected], or @[email protected].
founded 9 months ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
You are right that low orbit satellites aren't in a stable orbit and eventually fail in a matter of years. I think it very much depends on what the intended useage would be for a european constellation:
How much coverage do we want? Global or just the continent+ a bit more?
Would it just be for critical systems or are we also looking for economic independence?
What about bandwith and latency, how much do those matter?
All that would influence how many satellites are neccesarry and which orbits would be suitable. And also to what degree cost efficiency would play a role.
I admit I don't know much about orbital physics, but I don't see how you can have consistent coverage of Europe 24 hours per day and low pings comparable to Starlink without also covering the entire globe. Geosynchronous or sun synchronous orbits require a minimum ping of 240ms, round trip.
If you want to be effective, you need to drift south as much as you drift north to get adequate coverage - still a circular orbit, just tilted off the equator. This causes a real problem, because northern Europe is far enough north that you have to pretty much cover the whole world, anyway. Also, the more you move from the equator, the more bands of satellites you will need to have coverage at all times. The other part in the Starlink system is the requirement for some number of base stations to connect to the internet backbones. Further iterations are reducing this need, but it will never be 0.
What this means is, it would be cheaper for Brazil or the Middle East to have local satellite internet than it is for Europe, China, or Australia. In fact, if Europe had a low-orbit satellite internet offering, it would be more cost effective to sell it worldwide because they would be close to that just covering their own needs. Which is also the position Starlink has chosen to be in.