The Sentinels share the same orbit. So far with only one there is a revisit time of 12 days with one, and 6 days with two, with more (planned) even less. But you could have searched that yourself, or not? I wonder what you think of https://en.wikipedia.org/wiki/TanDEM-X & https://en.wikipedia.org/wiki/TerraSAR-X ?
Unless those satellites are sending messages like "10-4 good buddy", you might upset CW McCall[0] for using the term convoy. There are certain words/terms that evoke a vision in one's mind. Convoy just says 18-wheelers. Fleet conjures multiple ships. Constellation conjures more than 1-2 and constantly visible.
PS. it's not a matter of what I can or can't look up. People here are too uptight and want to correct everyone else. Sometimes, conversations can be had on not whether a word is actually correct, but whether it leaves one with the right "feeling" (ugh, is that allowed on HN, feelings??).
Yah, well. Now that you are saying it, and seeing the frame from that movie, I probably have seen it sometimes. But it didn't stick. CW McCall didn't ring any bells for me. Convoy is just a saying for many vehicles riding together, almost bumper to bumper. It's done for marriage from some ethnic groups. Or after a soccer game. But it's also said for just two vehicles driving together, at least around here. Sedans and SUVs, no Trucks(Semis?) necessary. (Shrug)
And no, feelings are disallowed because 'Resistance is futile!' & 'Prepare to be disassmbled for scanning and upload into the Protomolecule' ;->
Would convoy be OK?