Which satelite did I see?

I live in St Albans in the UK at the following co-ordinates

Lat (WGS84) N51:45:43 ( 51.761921 )
Long (WGS84) W0:18:07 ( -0.302046 )


We are have very clear skies at the moment and Last night and tonight at
approx 8.55pm summer time (7.55pm GMT) I saw something like a jet airliner
but smaller, faster, higher and with no vapour trail pass from approx south
to north slightly to the east of me.

Can anyone tell me what it is - I guess it is a satellite but don't know how
to find out.

Thanks

Ian