Note: All stellar bodies larger than Ceres had been photographed and mapped in detail by this time, but that didn’t mean that civilization had come to all corners of every globe. There was still a lot of territory on various dwarf planets and moons which had not yet been fully explored or prospected. The ‘dig-site’ that the Harrison landed at was a 200 km2 area which was an approximate launch site for the derelict EUA ship, shortly before it was attacked, assuming that the records had not been tampered with or corrupted.