PlanetsCentral

I was reviewing some data on a turn in one of my games, and I tried to figure out how and where information on enemy ships are transmitted. For the first 50 ships it's obvious in the Targets section of the RST. But for the rest of the ships, it's not obvious to me. As best I can tell, details on them does not exist in either PLAYERx.RST or UTILx.DAT, and those are the only two files transmitted by the host every turn. OK, the RST does contain Ship Coordinates for all ships, with the ShipID, X, Y, Owner, Mass; but it does not contain all the details like HullID, Name, Engines, Beams, Torps.

What am I missing?