Just to explain what happens next, we send our result file to the MPC, and they usually reply with the first identifications, i.e. the objects which are already known in the field. Usually very little except if we are scanning where one of or other colleagues has already covered the sky. One of the problems we have had to face was the setting of the system. On the other hand, when the detection level goes down, we start finding objects which are so faint that you have trouble finding out if they are real objects. It varies since bright stars create much more false detections than a field containing only fainter ones.
Visual confirmation goes very fast.
There are many improvments which can be made on such a piece of software, but for now it works OK for us. They will be done in time. Right now, with our telescope, we obtain useful results in this domain down to about magnitude 16, eventhough the limiting magnitude is much fainter. And I have never heard of an asteroid which period would change. There are some changes as far as elongation is concerned, but the period stays the same.