Question does anybody know what that object that went past the booster as it descended?

[deangood]

During the booster descent the booster camera captured an object flashing past coming from some where below the booster at T + 00:06:39

 

[Buzzerd]

There is a discussion on this in an earlier thread.
https://forums.space.com/threads/ufo-sighting-on-stage-1-decent.29956/