How do i define the random instantiated objects coordinates

I need to know the instantiated clone objects current location on the screen, thanks a lot .

GameObject myObject;
myObject = Instantiate(prefab, position, rotation);
myObject.transform.position = new Vector3();
You can set it with the initial instantiation, as you need to give it the position to instantiate at. You can also create a reference to the instantiated object, and then set it later in the code using the reference.