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(BBC-US)   Europe's first two GPS satellites have taken a wrong turn, need to recalculate their routes   (bbc.com ) divider line
    More: Ironic, orbits, ESA, Soyuz VS09, satellite navigation systems, French Guiana, satellites, Space Agency, constellation  
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1343 clicks; posted to Geek » on 23 Aug 2014 at 9:41 AM (1 year ago)   |   Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



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2014-08-23 08:37:03 AM  
spudcomics.com
 
2014-08-23 09:00:01 AM  
They didn't already have a GPS navigation system in Europe?

Anyway, it makes mistakes sometimes but I'm still pretty amazed by the technology.

/although it did direct me to a liquor store that had been shut down once.
 
2014-08-23 09:34:01 AM  

Mugato: They didn't already have a GPS navigation system in Europe?


Stop for a second and think of what the "G" stands for. And consider how it works.

But, GPS is controlled by the US government. It makes sense for the EU to have its own network.

There's also the Russian GLONASS system, which most modern smartphones - if not GPS receivers themselves - seem to support.

A GPS+GLONASS+Galileo receiver should deliver the greatest accuracy and redundancy.

Anyway, it makes mistakes sometimes but I'm still pretty amazed by the technology.

/although it did direct me to a liquor store that had been shut down once.


Meh. The problems come from relying on whomever is supplying the data about where things are supposed to be. If something isn't in Google Maps, or Google Maps' data is wrong, ain't much your device can do about that.
 
2014-08-23 09:49:29 AM  
But the fifth and sixth ones stated up!

/but I just want to sing
 
2014-08-23 09:53:15 AM  

iron de havilland: Meh. The problems come from relying on whomever is supplying the data about where things are supposed to be. If something isn't in Google Maps, or Google Maps' data is wrong, ain't much your device can do about that.


Maybe, but still that's a lot of data. But then I'm still amazed at IMDB.com, that knows virtually everyone who's worked on any movie or TV show ever.
 
2014-08-23 09:56:30 AM  

Mugato: They didn't already have a GPS navigation system in Europe?

Anyway, it makes mistakes sometimes but I'm still pretty amazed by the technology.

/although it did direct me to a liquor store that had been shut down once.


iron de havilland: Mugato: They didn't already have a GPS navigation system in Europe?

Stop for a second and think of what the "G" stands for. And consider how it works.

But, GPS is controlled by the US government. It makes sense for the EU to have its own network.

There's also the Russian GLONASS system, which most modern smartphones - if not GPS receivers themselves - seem to support.

A GPS+GLONASS+Galileo receiver should deliver the greatest accuracy and redundancy.

Anyway, it makes mistakes sometimes but I'm still pretty amazed by the technology.

/although it did direct me to a liquor store that had been shut down once.

Meh. The problems come from relying on whomever is supplying the data about where things are supposed to be. If something isn't in Google Maps, or Google Maps' data is wrong, ain't much your device can do about that.


You pretty much covered what I was going to say, but I'll add one more since it's a common point of debate:

The GPS satellites are not aware that you're even receiving their broadcast. They do not calculate your location and then send it down to you any more than the stars figured out Columbus' location and told him where he was. It seems to be a common misunderstanding- for example that MH370 could be tracked since somebody on the plane probably had a phone on with a GPS receiver active. Sure, the passengers could use gps to know where they were, but nobody else could get that information without some other means.
 
2014-08-23 10:00:37 AM  
Didn't know they could launch Soyuz from ESA launchers in French Guiana. I would have assumed these launches would be on an Ariane rocket or similar.
 
2014-08-23 10:02:09 AM  

dukeblue219: Didn't know they could launch Soyuz from ESA launchers in French Guiana. I would have assumed these launches would be on an Ariane rocket or similar.


They've done quite a few. Soyuz is the most reliable there is for big payloads
 
2014-08-23 10:04:36 AM  
Probably just trying to scour some more Science! they'd missed in previous low-orbit passes.
 
2014-08-23 10:07:05 AM  
Bloody routes
 
2014-08-23 10:36:38 AM  

Mugato: They didn't already have a GPS navigation system in Europe?


...

Yes of course. You realise GPS, Glonass and Compass works all over the world? I guess not.

Glonass is European actually. But ESA wants their own, seeing as USA have previously farked with GPS.
 
2014-08-23 10:40:53 AM  

Mugato: They didn't already have a GPS navigation system in Europe?


They use our system.  For some reason they think it's worth it to have their own.

iron de havilland: Stop for a second and think of what the "G" stands for. And consider how it works.

But, GPS is controlled by the US government. It makes sense for the EU to have its own network.

There's also the Russian GLONASS system, which most modern smartphones - if not GPS receivers themselves - seem to support.

A GPS+GLONASS+Galileo receiver should deliver the greatest accuracy and redundancy.


For the Russians to have their own makes sense--they wanted a system that would still work if they went to war with us.  Also, their system is optimized for better coverage at high latitudes.

dukeblue219: The GPS satellites are not aware that you're even receiving their broadcast. They do not calculate your location and then send it down to you any more than the stars figured out Columbus' location and told him where he was. It seems to be a common misunderstanding- for example that MH370 could be tracked since somebody on the plane probably had a phone on with a GPS receiver active. Sure, the passengers could use gps to know where they were, but nobody else could get that information without some other means.


It's a common fallacy because Hollywood goes for it.

Another way of looking at it:  The GPS satellites are really nothing more than some very nice clocks up there in the sky.  A GPS satellite no more knows about you than the clock on the wall knows you're looking at it.
 
2014-08-23 10:43:09 AM  
You are here.
Accuracy may very with velocity.
There may or may not be a dead cat in the trunk.
 
2014-08-23 11:02:09 AM  

UseTheForksLuke: You are here.
Accuracy may very with velocity.
There may or may not be a dead cat in the trunk.


Auto correct lol
It must be time dilation!
 
2014-08-23 11:03:18 AM  

Loren: Another way of looking at it: The GPS satellites are really nothing more than some very nice clocks up there in the sky. A GPS satellite no more knows about you than the clock on the wall knows you're looking at it.


And when someone sets the clocks wrong, like what happened to the Glonass system back in April, this happens.  Oh Russia, you so silly.
 
2014-08-23 11:04:45 AM  

SquiggsIN: UseTheForksLuke: You are here.
Accuracy may very with velocity.
There may or may not be a dead cat in the trunk.

Global Positioning Schrodinger?


Heisenberg was driving!
 
2014-08-23 11:18:55 AM  
They use our system.  For some reason they think it's worth it to have their own.

Well, *I* would be creeped out if I had to depend on another country's navigation system. The US taxpayer provides this fine service to the entire world, which uses it freely, but nobody seems to care to thank us, or want to spot us a few bucks for providing them the free ride, so to speak...
 
2014-08-23 12:40:34 PM  

Loren: Mugato: They didn't already have a GPS navigation system in Europe?


They use our system.  For some reason they think it's worth it to have their own.


For the same reason that Russia has GLONASS. Should the US choose to restrict GPS in any way, it makes sense for the EU to have its own system.
 
2014-08-23 12:48:37 PM  

Loren: Another way of looking at it:  The GPS satellites are really nothing more than some very nice clocks up there in the sky.  A GPS satellite no more knows about you than the clock on the wall knows you're looking at it.


Unless you are an exploding atomic bomb.  Then the Navstar GPS sats know exactly where you are.  One of their original design requirements was to know which side of the border an a-bomb in Berlin vaporised first by timing the EMP burst.
 
2014-08-23 01:37:10 PM  
I hope NASA informed them that we follow the right hand side of the road (like civilized nations) up there.
 
2014-08-23 06:02:13 PM  

dukeblue219: The GPS satellites are not aware that you're even receiving their broadcast.


I have actually run into more than a couple excessively tinfoil hatty types who thought I was an idiot for carrying a GPS receiver.  (Yeah, a GPS receiver, not a smartphone.)  Apparently a lot of people have a hard time understanding what "receiver" means.
 
2014-08-23 06:03:36 PM  

Mugato: They didn't already have a GPS navigation system in Europe?


Yes, but the new system will use metric.
 
2014-08-23 06:37:49 PM  
bplusmovieblog.files.wordpress.com
 
2014-08-24 12:41:43 AM  
The new system will be better technically (being much newer), has more complete coverage and will not be potentially subject to interference by one country.
 
2014-08-24 04:29:12 AM  
farking Tom Tom!!
 
2014-08-24 07:48:57 AM  

mark12A: They use our system.  For some reason they think it's worth it to have their own.

Well, *I* would be creeped out if I had to depend on another country's navigation system. The US taxpayer provides this fine service to the entire world, which uses it freely, but nobody seems to care to thank us, or want to spot us a few bucks for providing them the free ride, so to speak...


There weren't any free ride. The GPS system wasn't usable for civilians until ESA decided to launch their own.

USA then panicked and made it usable, but ESA didn't give a shiat.
 
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