I must admit to being completely boggled-out by the satellite scene. I've stumbled across many groups of downlink signals like that one (see my attachment) but I have ittle idea just what they are. I think the one I've attached is from one of the UHF Follow-on birds, probably UFO-10. Remarkably strong, given that I use a spare 50 MHz dipole for receive because it's the only antenna I have that works well at this frequency.