I was out having a walk this evening and saw two very bright objects below the moon at 6:44pm. My initial thought was "I never notice those stars". Then they faded out. I've never seen two satellite that close together at the same time and a quick glance at "heavens above" suggested that there was both an Iridum and a discarded booster in that general area at that time. Now, by an intricate process involving calculating the difference in our latitudes, drawing a dodgy back of an envelope sketch and a drinking few too many scotches, I have concluded that you may have, very likely, possibly, perhaps, photographed one of these
.