Triangular objects over Melbourne, FL

My husband and I pulled into the parking lot of a business in Melbourne, right off of US 1, to watch the Spacex launch on Thursday, Dec 10th. The launch was scheduled at 20:09 that evening, and we pulled off about 19:55 to catch it. We walked to the fence behind the building to get a better line of sight. As we were standing there, I looked up into the sky directly above and caught a glimpse of a triangular shaped object flying above us. All I could make out was the shape and that there was something on the perimeter of the object that may have been lights, but they were not on. As I was trying to point it out to my husband (who never saw the object) a second and then a third object followed the first one. They were traveling very fast and disappeared quickly to the south. Because of the conditions (it was nighttime, the sky and the objects were black) I can’t estimate the altitude of the objects, but they appeared large enough that my guess is they weren’t ! at significantly high altitude.