[xemoka]

And before selective availability[0] was turned off? So did he have military GPS equipment and not consumer grade?

[0] http://www.gps.gov/systems/gps/modernization/sa/

[jevinskie]

Very interesting data. It was cool to notice some graphs had much higher variability and then notice that they were all sites that are far from the equator. Then the article helpfully explained precisely why they had more variance!