this post was submitted on 29 Aug 2026
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[–] Dearth@lemmy.world 65 points 1 day ago (6 children)

Navigation with a suitcase sized device that doesn't rely on hundreds of thousands of satellites? Honestly this sounds great.

You think there are hundreds of thousands of GPS satellites in orbit?

[–] phoenixz@lemmy.ca 8 points 10 hours ago

Not even thousands

Not even hundreds

Try 31

You're literally off by a factor of 3225

[–] HugeNerd@lemmy.ca 7 points 11 hours ago (2 children)

Hundred of thousands of satellites? Are you on mushrooms or something?

[–] monotremata@lemmy.ca 11 points 11 hours ago (1 children)

So, for anyone else who became curious after this exchange:

I tried to look up how many there actually are. It's hard to give a single number, since there are many different ways to count them, but vaguely speaking it's in the range of dozens to a few hundred. GPS specifically has had 83 satellites built, of which 31 are currently operational, but most of the others still exist, they're just parked in a higher orbit for retirement. There's also GLONASS, BeiDou, Galileo, QZSS, and IRNSS/Navic. QZSS and IRNSS don't have as many satellites, and the rest are kinda roughly similar in number (e.g. GLONASS has had 146 built and 24 currently operational).

So yeah. Nowhere near hundreds of thousands. Even Starlink, which now comprises more than half of the total satellites of any kind in orbit, has only about 10,000.

[–] drev@lemmy.dbzer0.com 2 points 8 hours ago

GLONASS

Of all the acronyms they could have decided on, this was the correct choice.

[–] Iceman@lemmy.world 1 points 6 hours ago

Why is hyperbole such a foreign concept on this webzone?

[–] Auli@lemmy.ca 0 points 8 hours ago

Let me guess you think GPS alone can track someone.

[–] heartSagan5@lemmy.zip 8 points 1 day ago

It’ll get scuttled by the intelligence community so they can use it in the intelligence community.

[–] Kolanaki@pawb.social 19 points 1 day ago (1 children)

Wait until you hear about compasses and maps!

[–] hoherd@programming.dev 29 points 1 day ago (3 children)

In the middle of the ocean? Wouldn't that require a sextant, night time, and a lot of expertise?

[–] HugeNerd@lemmy.ca 1 points 9 hours ago

Wait until you hear about inertial navigation!

[–] LastYearsIrritant@sopuli.xyz 8 points 15 hours ago

And an extremely accurate clock (depending on how accurate you want your location to be).

https://en.wikipedia.org/wiki/Marine_chronometer

All you really need is to see the Jovian eclipses.