single file lights in the sky

February 14, 2021  A little after 5 a.m. I was outside and looked up into the sky to see a row of slow moving lights, they seemed to be independent of one another and were not exactly lined up, some got closer to the one in front and then fell back into line (only slightly) and were traveling single file.
I did not count them but I would say there were 15 or so, moving in an easterly direction, they were south of me and I can not say what elevation they were, though not nearly as far away as satellites are, more like the elevation of an airplane. Definitely not balloons as they were independently moving on their own power, and not part of a bigger craft. There was a single light the same color as the stars are. I watched them until they disappeared from view, the conditions were hazy over the coast, and they continued into the haze, but the sky above me was clear and that is why I saw them so clearly.
I am in San Diego, on a point of land called point loma. There is a lot of military in this town and that could be what I saw, perhaps a fleet of drones being moved to north island naval air base.