apeowl

apeowl OP t1_j5ub954 wrote

Reply to comment by Commotion in TIL that the European Union developed a satellite navigation system called Galileo, which can provide an accuracy of up to 20 cm (0.7ft) on smartphones, while GPS only reaches around 3 meters (10ft) by apeowl

Also, 16 of the 31 GPS satellites that are currently operational have actually been launched after the start of Galileo in October 2011. Also, they get software updates from time to time.

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apeowl OP t1_j5ub6nn wrote

Reply to comment by Electricpants in TIL that the European Union developed a satellite navigation system called Galileo, which can provide an accuracy of up to 20 cm (0.7ft) on smartphones, while GPS only reaches around 3 meters (10ft) by apeowl

Yeah ofc, but 16 of the 31 GPS satellites that are currently operational have actually been launched after the start of Galileo in October 2011, and the oldest of the other 15 was launched in 1997. Also, they get software updates from time to time.

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apeowl OP t1_j5ub2a9 wrote

Reply to comment by GingerScourge in TIL that the European Union developed a satellite navigation system called Galileo, which can provide an accuracy of up to 20 cm (0.7ft) on smartphones, while GPS only reaches around 3 meters (10ft) by apeowl

Yeah ofc thats true, but 16 of the 31 GPS satellites that are currently operational have actually been launched after the start of Galileo in October 2011, and the oldest of the other 15 was launched in 1997. Also, they get software updates from time to time.

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apeowl OP t1_j5u8ybz wrote

Reply to comment by MinimumPsychology916 in TIL that the European Union developed a satellite navigation system called Galileo, which can provide an accuracy of up to 20 cm (0.7ft) on smartphones, while GPS only reaches around 3 meters (10ft) by apeowl

No, with GPS you can reach a maximum precision of about 20-30 cm (this signal is encrypted and almost only used by the US government), while Galileo's encrypted signal provides about 1 cm. Note that these are the values that are possible to get almost instantly, and by only using a single signal band (with long-term measurements, and by using several signals, you can get a sub-millimeter precision with both GPS and Galileo)

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apeowl OP t1_j5u8p7c wrote

Reply to comment by TommyTuttle in TIL that the European Union developed a satellite navigation system called Galileo, which can provide an accuracy of up to 20 cm (0.7ft) on smartphones, while GPS only reaches around 3 meters (10ft) by apeowl

Yeah, but with GPS you can reach a maximum precision of about 20-30 cm (this signal is encrypted), while Galileo's encrypted signal provides about 1 cm. Note that these are the values that are possible to get almost instantly, and by only using a single signal band (with long-term measurements, and by using several signals, you can get a sub-millimeter precision with both GPS and Galileo)

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apeowl OP t1_j5qj86h wrote

Reply to comment by TWiesengrund in TIL that the European Union developed a satellite navigation system called Galileo, which can provide an accuracy of up to 20 cm (0.7ft) on smartphones, while GPS only reaches around 3 meters (10ft) by apeowl

Yeah, but to achieve (sub-)millimeter accuracy with Galileo you need much less complex technology than for GPS, also Galileo only needs a few minutes for that, while with GPS, such accuracy can only be achieved with long-term measurements.

Also, Galileo's high accuracy service which provides said 20 cm was just released to public today

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