Digits of precision: coordinates

This is great:

:smiley: :smiley: :smiley:

The UKs Ordnance survey do publish to a high degree of precision the co-ordinates of their passive GPS reference stations.

I have been to this one;

Passive GPS station: Swanbridge - C1ST1667
51.399751654166664, -3.196503619722222

It is where it says it is, but I was unable to verify the position down to the atomic level.