GPS versus Galileo

Hi friends,

"navigatio eccere necessis" - that's what the ancient Romans said when hitting the mediterranian sea to conquer foreign countries.

Today's navigational systems work much more precisely than their (Romans) compasses and coastal lighting systems.

Just for comparison: GPS has a position accuracy of 10m and a height accuracy of 35m.
Galileo has a position accuracy of 4m and a height accuracy of 8m.

These values are valid for any public navigational system.

The NASA did not like the European precision (giving the required accuracy to drop weapons at full impact power hitting bull's eye), but now a marriage is due.

NASA and European space technologies will join for better navigation of vehicles.

Galileo offers accuracy to a DIN-A4 size paper sheet for military and puplic services, such as land measuring (of course for extra payment)

I guess it (the marriage) will be for the benefit of all.

Boncuk

All that is splendid when things work properly and no EMI burst upsets the machine. If not, then it's back to map and compass.... the good old standby method.

HiTech said:

All that is splendid when things work properly and no EMI burst upsets the machine. If not, then it's back to map and compass.... the good old standby method.

Click to expand...

No reason to be afraid. European space tech has already 30 satellites at geostationary positions with 12 to follow. You can receive Galileo in the deepest canyon of skyscrapers around the world with at least 3 satellites to determine position already.

It takes a global EMI to upset machines.

If NASA goes along with the plans the number of combined GPS-Galileo-satellites will have full global coverage.

Not being sarcastic I would like to say: "Heil NASA-Galileo"!

Regards

Hans