10m WSPR - North American spots Sat March 7th 2015

KB4SC (6560km) was the first USA station to spot my 500mW WSPR signal at 1222z (quite early). Quite a few others have been spotting me since. TJ1TS (5478km) in Yaounde,Cameroon was spotting me very early, at breakfast time1 UPDATE 1848z:  Best USA DX is a spot from AE7YQ (8533km) in DM41kx, which puts him in southern Arizona.'' UPDATE 2012z:    At the moment the Canadians are still copying me. VA3XCD (5496km) is not the last I am sure from North America tonight. UPDATE 2138z:   N2NOM (5581km) was the last North American to spot me today at 2016z.