Very clear night and we were out looking at ISS and Dragon capsule and saw what someone said was the iridium flash from the Polar Satellite crossing high to left of moon but different direction to ISS that passed before and and this was all before seeing the fireball about five or ten mins later. We were talking about debris at the time funnily enough and the meteor appeared low and flashed v quickly across and down to horizon towards west like a ball of yellow fire - fast and v bright