Oh cool! Congratulations it did happen! I've had that happen a few times, i didnt see it when i was watching the camera screen, but then later after i reviewed the video I saw it. I've got at least one or two videos on my channel of the ISS, I don't think I have one of a hubble transit. I do have one where I tracked the Hubble though. I can post the links or anyone interested can dig through my videos and find them if they wish.some maybe shorts videos and/or live replays.